xref: /freebsd/sys/dev/usb/controller/uss820dci.c (revision e892b3fe36cbf5aff5352b4e1f6dbde630cead67)
102ac6454SAndrew Thompson /* $FreeBSD$ */
202ac6454SAndrew Thompson /*-
35d38a4d4SEd Schouten  * Copyright (c) 2008 Hans Petter Selasky <hselasky@FreeBSD.org>
402ac6454SAndrew Thompson  * All rights reserved.
502ac6454SAndrew Thompson  *
602ac6454SAndrew Thompson  * Redistribution and use in source and binary forms, with or without
702ac6454SAndrew Thompson  * modification, are permitted provided that the following conditions
802ac6454SAndrew Thompson  * are met:
902ac6454SAndrew Thompson  * 1. Redistributions of source code must retain the above copyright
1002ac6454SAndrew Thompson  *    notice, this list of conditions and the following disclaimer.
1102ac6454SAndrew Thompson  * 2. Redistributions in binary form must reproduce the above copyright
1202ac6454SAndrew Thompson  *    notice, this list of conditions and the following disclaimer in the
1302ac6454SAndrew Thompson  *    documentation and/or other materials provided with the distribution.
1402ac6454SAndrew Thompson  *
1502ac6454SAndrew Thompson  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
1602ac6454SAndrew Thompson  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1702ac6454SAndrew Thompson  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1802ac6454SAndrew Thompson  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
1902ac6454SAndrew Thompson  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
2002ac6454SAndrew Thompson  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
2102ac6454SAndrew Thompson  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2202ac6454SAndrew Thompson  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
2302ac6454SAndrew Thompson  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
2402ac6454SAndrew Thompson  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
2502ac6454SAndrew Thompson  * SUCH DAMAGE.
2602ac6454SAndrew Thompson  */
2702ac6454SAndrew Thompson 
2802ac6454SAndrew Thompson /*
2902ac6454SAndrew Thompson  * This file contains the driver for the USS820 series USB Device
3002ac6454SAndrew Thompson  * Controller
3102ac6454SAndrew Thompson  *
32fde87526SAndrew Thompson  * NOTE: The datasheet does not document everything.
3302ac6454SAndrew Thompson  */
3402ac6454SAndrew Thompson 
35d2b99310SHans Petter Selasky #ifdef USB_GLOBAL_INCLUDE_FILE
36d2b99310SHans Petter Selasky #include USB_GLOBAL_INCLUDE_FILE
37d2b99310SHans Petter Selasky #else
38ed6d949aSAndrew Thompson #include <sys/stdint.h>
39ed6d949aSAndrew Thompson #include <sys/stddef.h>
40ed6d949aSAndrew Thompson #include <sys/param.h>
41ed6d949aSAndrew Thompson #include <sys/queue.h>
42ed6d949aSAndrew Thompson #include <sys/types.h>
43ed6d949aSAndrew Thompson #include <sys/systm.h>
44ed6d949aSAndrew Thompson #include <sys/kernel.h>
45ed6d949aSAndrew Thompson #include <sys/bus.h>
46ed6d949aSAndrew Thompson #include <sys/module.h>
47ed6d949aSAndrew Thompson #include <sys/lock.h>
48ed6d949aSAndrew Thompson #include <sys/mutex.h>
49ed6d949aSAndrew Thompson #include <sys/condvar.h>
50ed6d949aSAndrew Thompson #include <sys/sysctl.h>
51ed6d949aSAndrew Thompson #include <sys/sx.h>
52ed6d949aSAndrew Thompson #include <sys/unistd.h>
53ed6d949aSAndrew Thompson #include <sys/callout.h>
54ed6d949aSAndrew Thompson #include <sys/malloc.h>
55ed6d949aSAndrew Thompson #include <sys/priv.h>
56ed6d949aSAndrew Thompson 
5702ac6454SAndrew Thompson #include <dev/usb/usb.h>
58ed6d949aSAndrew Thompson #include <dev/usb/usbdi.h>
5902ac6454SAndrew Thompson 
6002ac6454SAndrew Thompson #define	USB_DEBUG_VAR uss820dcidebug
6102ac6454SAndrew Thompson 
6202ac6454SAndrew Thompson #include <dev/usb/usb_core.h>
6302ac6454SAndrew Thompson #include <dev/usb/usb_debug.h>
6402ac6454SAndrew Thompson #include <dev/usb/usb_busdma.h>
6502ac6454SAndrew Thompson #include <dev/usb/usb_process.h>
6602ac6454SAndrew Thompson #include <dev/usb/usb_transfer.h>
6702ac6454SAndrew Thompson #include <dev/usb/usb_device.h>
6802ac6454SAndrew Thompson #include <dev/usb/usb_hub.h>
6902ac6454SAndrew Thompson #include <dev/usb/usb_util.h>
7002ac6454SAndrew Thompson 
7102ac6454SAndrew Thompson #include <dev/usb/usb_controller.h>
7202ac6454SAndrew Thompson #include <dev/usb/usb_bus.h>
73d2b99310SHans Petter Selasky #endif			/* USB_GLOBAL_INCLUDE_FILE */
74d2b99310SHans Petter Selasky 
7502ac6454SAndrew Thompson #include <dev/usb/controller/uss820dci.h>
7602ac6454SAndrew Thompson 
7702ac6454SAndrew Thompson #define	USS820_DCI_BUS2SC(bus) \
7802ac6454SAndrew Thompson    ((struct uss820dci_softc *)(((uint8_t *)(bus)) - \
79578d0effSAndrew Thompson     ((uint8_t *)&(((struct uss820dci_softc *)0)->sc_bus))))
8002ac6454SAndrew Thompson 
8102ac6454SAndrew Thompson #define	USS820_DCI_PC2SC(pc) \
82bdc081c6SAndrew Thompson    USS820_DCI_BUS2SC(USB_DMATAG_TO_XROOT((pc)->tag_parent)->bus)
8302ac6454SAndrew Thompson 
84b850ecc1SAndrew Thompson #ifdef USB_DEBUG
8502ac6454SAndrew Thompson static int uss820dcidebug = 0;
8602ac6454SAndrew Thompson 
876472ac3dSEd Schouten static SYSCTL_NODE(_hw_usb, OID_AUTO, uss820dci, CTLFLAG_RW, 0,
886472ac3dSEd Schouten     "USB uss820dci");
899360ae40SAndrew Thompson SYSCTL_INT(_hw_usb_uss820dci, OID_AUTO, debug, CTLFLAG_RW,
9002ac6454SAndrew Thompson     &uss820dcidebug, 0, "uss820dci debug level");
9102ac6454SAndrew Thompson #endif
9202ac6454SAndrew Thompson 
9302ac6454SAndrew Thompson #define	USS820_DCI_INTR_ENDPT 1
9402ac6454SAndrew Thompson 
9502ac6454SAndrew Thompson /* prototypes */
9602ac6454SAndrew Thompson 
97*e892b3feSHans Petter Selasky static const struct usb_bus_methods uss820dci_bus_methods;
98*e892b3feSHans Petter Selasky static const struct usb_pipe_methods uss820dci_device_bulk_methods;
99*e892b3feSHans Petter Selasky static const struct usb_pipe_methods uss820dci_device_ctrl_methods;
100*e892b3feSHans Petter Selasky static const struct usb_pipe_methods uss820dci_device_intr_methods;
101*e892b3feSHans Petter Selasky static const struct usb_pipe_methods uss820dci_device_isoc_fs_methods;
10202ac6454SAndrew Thompson 
10302ac6454SAndrew Thompson static uss820dci_cmd_t uss820dci_setup_rx;
10402ac6454SAndrew Thompson static uss820dci_cmd_t uss820dci_data_rx;
10502ac6454SAndrew Thompson static uss820dci_cmd_t uss820dci_data_tx;
10602ac6454SAndrew Thompson static uss820dci_cmd_t uss820dci_data_tx_sync;
107e0a69b51SAndrew Thompson static void	uss820dci_device_done(struct usb_xfer *, usb_error_t);
108760bc48eSAndrew Thompson static void	uss820dci_do_poll(struct usb_bus *);
109760bc48eSAndrew Thompson static void	uss820dci_standard_done(struct usb_xfer *);
110760bc48eSAndrew Thompson static void	uss820dci_intr_set(struct usb_xfer *, uint8_t);
11102ac6454SAndrew Thompson static void	uss820dci_update_shared_1(struct uss820dci_softc *, uint8_t,
11202ac6454SAndrew Thompson 		    uint8_t, uint8_t);
11339307315SAndrew Thompson static void	uss820dci_root_intr(struct uss820dci_softc *);
11402ac6454SAndrew Thompson 
11502ac6454SAndrew Thompson /*
11602ac6454SAndrew Thompson  * Here is a list of what the USS820D chip can support. The main
11702ac6454SAndrew Thompson  * limitation is that the sum of the buffer sizes must be less than
11802ac6454SAndrew Thompson  * 1120 bytes.
11902ac6454SAndrew Thompson  */
120760bc48eSAndrew Thompson static const struct usb_hw_ep_profile
12102ac6454SAndrew Thompson 	uss820dci_ep_profile[] = {
12202ac6454SAndrew Thompson 
12302ac6454SAndrew Thompson 	[0] = {
12402ac6454SAndrew Thompson 		.max_in_frame_size = 32,
12502ac6454SAndrew Thompson 		.max_out_frame_size = 32,
12602ac6454SAndrew Thompson 		.is_simplex = 0,
12702ac6454SAndrew Thompson 		.support_control = 1,
12802ac6454SAndrew Thompson 	},
12902ac6454SAndrew Thompson 	[1] = {
13002ac6454SAndrew Thompson 		.max_in_frame_size = 64,
13102ac6454SAndrew Thompson 		.max_out_frame_size = 64,
13202ac6454SAndrew Thompson 		.is_simplex = 0,
13302ac6454SAndrew Thompson 		.support_multi_buffer = 1,
13402ac6454SAndrew Thompson 		.support_bulk = 1,
13502ac6454SAndrew Thompson 		.support_interrupt = 1,
13602ac6454SAndrew Thompson 		.support_in = 1,
13702ac6454SAndrew Thompson 		.support_out = 1,
13802ac6454SAndrew Thompson 	},
13902ac6454SAndrew Thompson 	[2] = {
14002ac6454SAndrew Thompson 		.max_in_frame_size = 8,
14102ac6454SAndrew Thompson 		.max_out_frame_size = 8,
14202ac6454SAndrew Thompson 		.is_simplex = 0,
14302ac6454SAndrew Thompson 		.support_multi_buffer = 1,
14402ac6454SAndrew Thompson 		.support_bulk = 1,
14502ac6454SAndrew Thompson 		.support_interrupt = 1,
14602ac6454SAndrew Thompson 		.support_in = 1,
14702ac6454SAndrew Thompson 		.support_out = 1,
14802ac6454SAndrew Thompson 	},
14902ac6454SAndrew Thompson 	[3] = {
15002ac6454SAndrew Thompson 		.max_in_frame_size = 256,
15102ac6454SAndrew Thompson 		.max_out_frame_size = 256,
15202ac6454SAndrew Thompson 		.is_simplex = 0,
15302ac6454SAndrew Thompson 		.support_multi_buffer = 1,
15402ac6454SAndrew Thompson 		.support_isochronous = 1,
15502ac6454SAndrew Thompson 		.support_in = 1,
15602ac6454SAndrew Thompson 		.support_out = 1,
15702ac6454SAndrew Thompson 	},
15802ac6454SAndrew Thompson };
15902ac6454SAndrew Thompson 
16002ac6454SAndrew Thompson static void
16102ac6454SAndrew Thompson uss820dci_update_shared_1(struct uss820dci_softc *sc, uint8_t reg,
16202ac6454SAndrew Thompson     uint8_t keep_mask, uint8_t set_mask)
16302ac6454SAndrew Thompson {
16402ac6454SAndrew Thompson 	uint8_t temp;
16502ac6454SAndrew Thompson 
16602ac6454SAndrew Thompson 	USS820_WRITE_1(sc, USS820_PEND, 1);
16702ac6454SAndrew Thompson 	temp = USS820_READ_1(sc, reg);
16802ac6454SAndrew Thompson 	temp &= (keep_mask);
16902ac6454SAndrew Thompson 	temp |= (set_mask);
17002ac6454SAndrew Thompson 	USS820_WRITE_1(sc, reg, temp);
17102ac6454SAndrew Thompson 	USS820_WRITE_1(sc, USS820_PEND, 0);
17202ac6454SAndrew Thompson }
17302ac6454SAndrew Thompson 
17402ac6454SAndrew Thompson static void
175760bc48eSAndrew Thompson uss820dci_get_hw_ep_profile(struct usb_device *udev,
176760bc48eSAndrew Thompson     const struct usb_hw_ep_profile **ppf, uint8_t ep_addr)
17702ac6454SAndrew Thompson {
17802ac6454SAndrew Thompson 	if (ep_addr == 0) {
17902ac6454SAndrew Thompson 		*ppf = uss820dci_ep_profile + 0;
18002ac6454SAndrew Thompson 	} else if (ep_addr < 5) {
18102ac6454SAndrew Thompson 		*ppf = uss820dci_ep_profile + 1;
18202ac6454SAndrew Thompson 	} else if (ep_addr < 7) {
18302ac6454SAndrew Thompson 		*ppf = uss820dci_ep_profile + 2;
18402ac6454SAndrew Thompson 	} else if (ep_addr == 7) {
18502ac6454SAndrew Thompson 		*ppf = uss820dci_ep_profile + 3;
18602ac6454SAndrew Thompson 	} else {
18702ac6454SAndrew Thompson 		*ppf = NULL;
18802ac6454SAndrew Thompson 	}
18902ac6454SAndrew Thompson }
19002ac6454SAndrew Thompson 
19102ac6454SAndrew Thompson static void
19202ac6454SAndrew Thompson uss820dci_pull_up(struct uss820dci_softc *sc)
19302ac6454SAndrew Thompson {
19402ac6454SAndrew Thompson 	uint8_t temp;
19502ac6454SAndrew Thompson 
19602ac6454SAndrew Thompson 	/* pullup D+, if possible */
19702ac6454SAndrew Thompson 
19802ac6454SAndrew Thompson 	if (!sc->sc_flags.d_pulled_up &&
19902ac6454SAndrew Thompson 	    sc->sc_flags.port_powered) {
20002ac6454SAndrew Thompson 		sc->sc_flags.d_pulled_up = 1;
20102ac6454SAndrew Thompson 
20202ac6454SAndrew Thompson 		DPRINTF("\n");
20302ac6454SAndrew Thompson 
20402ac6454SAndrew Thompson 		temp = USS820_READ_1(sc, USS820_MCSR);
20502ac6454SAndrew Thompson 		temp |= USS820_MCSR_DPEN;
20602ac6454SAndrew Thompson 		USS820_WRITE_1(sc, USS820_MCSR, temp);
20702ac6454SAndrew Thompson 	}
20802ac6454SAndrew Thompson }
20902ac6454SAndrew Thompson 
21002ac6454SAndrew Thompson static void
21102ac6454SAndrew Thompson uss820dci_pull_down(struct uss820dci_softc *sc)
21202ac6454SAndrew Thompson {
21302ac6454SAndrew Thompson 	uint8_t temp;
21402ac6454SAndrew Thompson 
21502ac6454SAndrew Thompson 	/* pulldown D+, if possible */
21602ac6454SAndrew Thompson 
21702ac6454SAndrew Thompson 	if (sc->sc_flags.d_pulled_up) {
21802ac6454SAndrew Thompson 		sc->sc_flags.d_pulled_up = 0;
21902ac6454SAndrew Thompson 
22002ac6454SAndrew Thompson 		DPRINTF("\n");
22102ac6454SAndrew Thompson 
22202ac6454SAndrew Thompson 		temp = USS820_READ_1(sc, USS820_MCSR);
22302ac6454SAndrew Thompson 		temp &= ~USS820_MCSR_DPEN;
22402ac6454SAndrew Thompson 		USS820_WRITE_1(sc, USS820_MCSR, temp);
22502ac6454SAndrew Thompson 	}
22602ac6454SAndrew Thompson }
22702ac6454SAndrew Thompson 
22802ac6454SAndrew Thompson static void
22902ac6454SAndrew Thompson uss820dci_wakeup_peer(struct uss820dci_softc *sc)
23002ac6454SAndrew Thompson {
23102ac6454SAndrew Thompson 	if (!(sc->sc_flags.status_suspend)) {
23202ac6454SAndrew Thompson 		return;
23302ac6454SAndrew Thompson 	}
23402ac6454SAndrew Thompson 	DPRINTFN(0, "not supported\n");
23502ac6454SAndrew Thompson }
23602ac6454SAndrew Thompson 
23702ac6454SAndrew Thompson static void
23802ac6454SAndrew Thompson uss820dci_set_address(struct uss820dci_softc *sc, uint8_t addr)
23902ac6454SAndrew Thompson {
24002ac6454SAndrew Thompson 	DPRINTFN(5, "addr=%d\n", addr);
24102ac6454SAndrew Thompson 
24202ac6454SAndrew Thompson 	USS820_WRITE_1(sc, USS820_FADDR, addr);
24302ac6454SAndrew Thompson }
24402ac6454SAndrew Thompson 
24502ac6454SAndrew Thompson static uint8_t
24602ac6454SAndrew Thompson uss820dci_setup_rx(struct uss820dci_td *td)
24702ac6454SAndrew Thompson {
24802ac6454SAndrew Thompson 	struct uss820dci_softc *sc;
249760bc48eSAndrew Thompson 	struct usb_device_request req;
25002ac6454SAndrew Thompson 	uint16_t count;
25102ac6454SAndrew Thompson 	uint8_t rx_stat;
25202ac6454SAndrew Thompson 	uint8_t temp;
25302ac6454SAndrew Thompson 
25402ac6454SAndrew Thompson 	/* select the correct endpoint */
25502ac6454SAndrew Thompson 	bus_space_write_1(td->io_tag, td->io_hdl,
2566f6932dcSAndrew Thompson 	    USS820_EPINDEX, td->ep_index);
25702ac6454SAndrew Thompson 
25802ac6454SAndrew Thompson 	/* read out FIFO status */
25902ac6454SAndrew Thompson 	rx_stat = bus_space_read_1(td->io_tag, td->io_hdl,
2606f6932dcSAndrew Thompson 	    USS820_RXSTAT);
26102ac6454SAndrew Thompson 
26202ac6454SAndrew Thompson 	/* get pointer to softc */
26302ac6454SAndrew Thompson 	sc = USS820_DCI_PC2SC(td->pc);
26402ac6454SAndrew Thompson 
26502ac6454SAndrew Thompson 	DPRINTFN(5, "rx_stat=0x%02x rem=%u\n", rx_stat, td->remainder);
26602ac6454SAndrew Thompson 
26702ac6454SAndrew Thompson 	if (!(rx_stat & USS820_RXSTAT_RXSETUP)) {
26802ac6454SAndrew Thompson 		goto not_complete;
26902ac6454SAndrew Thompson 	}
270f3464815SAndrew Thompson 	/* clear did stall */
271f3464815SAndrew Thompson 	td->did_stall = 0;
272f3464815SAndrew Thompson 
27302ac6454SAndrew Thompson 	/* clear stall and all I/O */
27402ac6454SAndrew Thompson 	uss820dci_update_shared_1(sc, USS820_EPCON,
27502ac6454SAndrew Thompson 	    0xFF ^ (USS820_EPCON_TXSTL |
27602ac6454SAndrew Thompson 	    USS820_EPCON_RXSTL |
27702ac6454SAndrew Thompson 	    USS820_EPCON_RXIE |
27802ac6454SAndrew Thompson 	    USS820_EPCON_TXOE), 0);
27902ac6454SAndrew Thompson 
28002ac6454SAndrew Thompson 	/* clear end overwrite flag */
28102ac6454SAndrew Thompson 	uss820dci_update_shared_1(sc, USS820_RXSTAT,
28202ac6454SAndrew Thompson 	    0xFF ^ USS820_RXSTAT_EDOVW, 0);
28302ac6454SAndrew Thompson 
28402ac6454SAndrew Thompson 	/* get the packet byte count */
28502ac6454SAndrew Thompson 	count = bus_space_read_1(td->io_tag, td->io_hdl,
2866f6932dcSAndrew Thompson 	    USS820_RXCNTL);
28702ac6454SAndrew Thompson 	count |= (bus_space_read_1(td->io_tag, td->io_hdl,
2886f6932dcSAndrew Thompson 	    USS820_RXCNTH) << 8);
28902ac6454SAndrew Thompson 	count &= 0x3FF;
29002ac6454SAndrew Thompson 
29102ac6454SAndrew Thompson 	/* verify data length */
29202ac6454SAndrew Thompson 	if (count != td->remainder) {
29302ac6454SAndrew Thompson 		DPRINTFN(0, "Invalid SETUP packet "
29402ac6454SAndrew Thompson 		    "length, %d bytes\n", count);
295eb846b4eSAndrew Thompson 		goto setup_not_complete;
29602ac6454SAndrew Thompson 	}
29702ac6454SAndrew Thompson 	if (count != sizeof(req)) {
29802ac6454SAndrew Thompson 		DPRINTFN(0, "Unsupported SETUP packet "
29902ac6454SAndrew Thompson 		    "length, %d bytes\n", count);
300eb846b4eSAndrew Thompson 		goto setup_not_complete;
30102ac6454SAndrew Thompson 	}
30202ac6454SAndrew Thompson 	/* receive data */
30302ac6454SAndrew Thompson 	bus_space_read_multi_1(td->io_tag, td->io_hdl,
3046f6932dcSAndrew Thompson 	    USS820_RXDAT, (void *)&req, sizeof(req));
30502ac6454SAndrew Thompson 
30602ac6454SAndrew Thompson 	/* read out FIFO status */
30702ac6454SAndrew Thompson 	rx_stat = bus_space_read_1(td->io_tag, td->io_hdl,
3086f6932dcSAndrew Thompson 	    USS820_RXSTAT);
30902ac6454SAndrew Thompson 
31002ac6454SAndrew Thompson 	if (rx_stat & (USS820_RXSTAT_EDOVW |
31102ac6454SAndrew Thompson 	    USS820_RXSTAT_STOVW)) {
31202ac6454SAndrew Thompson 		DPRINTF("new SETUP packet received\n");
31302ac6454SAndrew Thompson 		return (1);		/* not complete */
31402ac6454SAndrew Thompson 	}
31502ac6454SAndrew Thompson 	/* clear receive setup bit */
31602ac6454SAndrew Thompson 	uss820dci_update_shared_1(sc, USS820_RXSTAT,
31702ac6454SAndrew Thompson 	    0xFF ^ (USS820_RXSTAT_RXSETUP |
31802ac6454SAndrew Thompson 	    USS820_RXSTAT_EDOVW |
31902ac6454SAndrew Thompson 	    USS820_RXSTAT_STOVW), 0);
32002ac6454SAndrew Thompson 
32102ac6454SAndrew Thompson 	/* set RXFFRC bit */
32202ac6454SAndrew Thompson 	temp = bus_space_read_1(td->io_tag, td->io_hdl,
3236f6932dcSAndrew Thompson 	    USS820_RXCON);
32402ac6454SAndrew Thompson 	temp |= USS820_RXCON_RXFFRC;
32502ac6454SAndrew Thompson 	bus_space_write_1(td->io_tag, td->io_hdl,
3266f6932dcSAndrew Thompson 	    USS820_RXCON, temp);
32702ac6454SAndrew Thompson 
32802ac6454SAndrew Thompson 	/* copy data into real buffer */
329a593f6b8SAndrew Thompson 	usbd_copy_in(td->pc, 0, &req, sizeof(req));
33002ac6454SAndrew Thompson 
33102ac6454SAndrew Thompson 	td->offset = sizeof(req);
33202ac6454SAndrew Thompson 	td->remainder = 0;
33302ac6454SAndrew Thompson 
33402ac6454SAndrew Thompson 	/* sneak peek the set address */
33502ac6454SAndrew Thompson 	if ((req.bmRequestType == UT_WRITE_DEVICE) &&
33602ac6454SAndrew Thompson 	    (req.bRequest == UR_SET_ADDRESS)) {
33702ac6454SAndrew Thompson 		sc->sc_dv_addr = req.wValue[0] & 0x7F;
33802ac6454SAndrew Thompson 	} else {
33902ac6454SAndrew Thompson 		sc->sc_dv_addr = 0xFF;
34002ac6454SAndrew Thompson 	}
3416703f98cSAndrew Thompson 
3426703f98cSAndrew Thompson 	/* reset TX FIFO */
3436703f98cSAndrew Thompson 	temp = USS820_READ_1(sc, USS820_TXCON);
3446703f98cSAndrew Thompson 	temp |= USS820_TXCON_TXCLR;
3456703f98cSAndrew Thompson 	USS820_WRITE_1(sc, USS820_TXCON, temp);
3466703f98cSAndrew Thompson 	temp &= ~USS820_TXCON_TXCLR;
3476703f98cSAndrew Thompson 	USS820_WRITE_1(sc, USS820_TXCON, temp);
3486703f98cSAndrew Thompson 
34902ac6454SAndrew Thompson 	return (0);			/* complete */
35002ac6454SAndrew Thompson 
351eb846b4eSAndrew Thompson setup_not_complete:
352eb846b4eSAndrew Thompson 
353eb846b4eSAndrew Thompson 	/* set RXFFRC bit */
354eb846b4eSAndrew Thompson 	temp = bus_space_read_1(td->io_tag, td->io_hdl,
3556f6932dcSAndrew Thompson 	    USS820_RXCON);
356eb846b4eSAndrew Thompson 	temp |= USS820_RXCON_RXFFRC;
357eb846b4eSAndrew Thompson 	bus_space_write_1(td->io_tag, td->io_hdl,
3586f6932dcSAndrew Thompson 	    USS820_RXCON, temp);
359eb846b4eSAndrew Thompson 
360eb846b4eSAndrew Thompson 	/* FALLTHROUGH */
361eb846b4eSAndrew Thompson 
36202ac6454SAndrew Thompson not_complete:
363f3464815SAndrew Thompson 	/* abort any ongoing transfer */
364f3464815SAndrew Thompson 	if (!td->did_stall) {
365f3464815SAndrew Thompson 		DPRINTFN(5, "stalling\n");
366f3464815SAndrew Thompson 		/* set stall */
367f3464815SAndrew Thompson 		uss820dci_update_shared_1(sc, USS820_EPCON, 0xFF,
368f3464815SAndrew Thompson 		    (USS820_EPCON_TXSTL | USS820_EPCON_RXSTL));
369f3464815SAndrew Thompson 
370f3464815SAndrew Thompson 		td->did_stall = 1;
371f3464815SAndrew Thompson 	}
372f3464815SAndrew Thompson 
37302ac6454SAndrew Thompson 	/* clear end overwrite flag, if any */
37402ac6454SAndrew Thompson 	if (rx_stat & USS820_RXSTAT_RXSETUP) {
37502ac6454SAndrew Thompson 		uss820dci_update_shared_1(sc, USS820_RXSTAT,
37602ac6454SAndrew Thompson 		    0xFF ^ (USS820_RXSTAT_EDOVW |
37702ac6454SAndrew Thompson 		    USS820_RXSTAT_STOVW |
37802ac6454SAndrew Thompson 		    USS820_RXSTAT_RXSETUP), 0);
37902ac6454SAndrew Thompson 	}
38002ac6454SAndrew Thompson 	return (1);			/* not complete */
38102ac6454SAndrew Thompson 
38202ac6454SAndrew Thompson }
38302ac6454SAndrew Thompson 
38402ac6454SAndrew Thompson static uint8_t
38502ac6454SAndrew Thompson uss820dci_data_rx(struct uss820dci_td *td)
38602ac6454SAndrew Thompson {
387760bc48eSAndrew Thompson 	struct usb_page_search buf_res;
38802ac6454SAndrew Thompson 	uint16_t count;
38902ac6454SAndrew Thompson 	uint8_t rx_flag;
39002ac6454SAndrew Thompson 	uint8_t rx_stat;
39102ac6454SAndrew Thompson 	uint8_t rx_cntl;
39202ac6454SAndrew Thompson 	uint8_t to;
39302ac6454SAndrew Thompson 	uint8_t got_short;
39402ac6454SAndrew Thompson 
39502ac6454SAndrew Thompson 	to = 2;				/* don't loop forever! */
39602ac6454SAndrew Thompson 	got_short = 0;
39702ac6454SAndrew Thompson 
39802ac6454SAndrew Thompson 	/* select the correct endpoint */
3996f6932dcSAndrew Thompson 	bus_space_write_1(td->io_tag, td->io_hdl, USS820_EPINDEX, td->ep_index);
40002ac6454SAndrew Thompson 
40102ac6454SAndrew Thompson 	/* check if any of the FIFO banks have data */
40202ac6454SAndrew Thompson repeat:
40302ac6454SAndrew Thompson 	/* read out FIFO flag */
40402ac6454SAndrew Thompson 	rx_flag = bus_space_read_1(td->io_tag, td->io_hdl,
4056f6932dcSAndrew Thompson 	    USS820_RXFLG);
40602ac6454SAndrew Thompson 	/* read out FIFO status */
40702ac6454SAndrew Thompson 	rx_stat = bus_space_read_1(td->io_tag, td->io_hdl,
4086f6932dcSAndrew Thompson 	    USS820_RXSTAT);
40902ac6454SAndrew Thompson 
41002ac6454SAndrew Thompson 	DPRINTFN(5, "rx_stat=0x%02x rx_flag=0x%02x rem=%u\n",
41102ac6454SAndrew Thompson 	    rx_stat, rx_flag, td->remainder);
41202ac6454SAndrew Thompson 
41302ac6454SAndrew Thompson 	if (rx_stat & (USS820_RXSTAT_RXSETUP |
41402ac6454SAndrew Thompson 	    USS820_RXSTAT_RXSOVW |
41502ac6454SAndrew Thompson 	    USS820_RXSTAT_EDOVW)) {
41602ac6454SAndrew Thompson 		if (td->remainder == 0) {
41702ac6454SAndrew Thompson 			/*
41802ac6454SAndrew Thompson 			 * We are actually complete and have
41902ac6454SAndrew Thompson 			 * received the next SETUP
42002ac6454SAndrew Thompson 			 */
42102ac6454SAndrew Thompson 			DPRINTFN(5, "faking complete\n");
42202ac6454SAndrew Thompson 			return (0);	/* complete */
42302ac6454SAndrew Thompson 		}
42402ac6454SAndrew Thompson 		/*
42502ac6454SAndrew Thompson 	         * USB Host Aborted the transfer.
42602ac6454SAndrew Thompson 	         */
42702ac6454SAndrew Thompson 		td->error = 1;
42802ac6454SAndrew Thompson 		return (0);		/* complete */
42902ac6454SAndrew Thompson 	}
43002ac6454SAndrew Thompson 	/* check for errors */
43102ac6454SAndrew Thompson 	if (rx_flag & (USS820_RXFLG_RXOVF |
43202ac6454SAndrew Thompson 	    USS820_RXFLG_RXURF)) {
43302ac6454SAndrew Thompson 		DPRINTFN(5, "overflow or underflow\n");
43402ac6454SAndrew Thompson 		/* should not happen */
43502ac6454SAndrew Thompson 		td->error = 1;
43602ac6454SAndrew Thompson 		return (0);		/* complete */
43702ac6454SAndrew Thompson 	}
43802ac6454SAndrew Thompson 	/* check status */
43902ac6454SAndrew Thompson 	if (!(rx_flag & (USS820_RXFLG_RXFIF0 |
44002ac6454SAndrew Thompson 	    USS820_RXFLG_RXFIF1))) {
44102ac6454SAndrew Thompson 
44202ac6454SAndrew Thompson 		/* read out EPCON register */
44302ac6454SAndrew Thompson 		/* enable RX input */
444476183dfSAndrew Thompson 		if (!td->did_enable) {
44502ac6454SAndrew Thompson 			uss820dci_update_shared_1(USS820_DCI_PC2SC(td->pc),
44602ac6454SAndrew Thompson 			    USS820_EPCON, 0xFF, USS820_EPCON_RXIE);
447476183dfSAndrew Thompson 			td->did_enable = 1;
44802ac6454SAndrew Thompson 		}
44902ac6454SAndrew Thompson 		return (1);		/* not complete */
45002ac6454SAndrew Thompson 	}
45102ac6454SAndrew Thompson 	/* get the packet byte count */
45202ac6454SAndrew Thompson 	count = bus_space_read_1(td->io_tag, td->io_hdl,
4536f6932dcSAndrew Thompson 	    USS820_RXCNTL);
45402ac6454SAndrew Thompson 
45502ac6454SAndrew Thompson 	count |= (bus_space_read_1(td->io_tag, td->io_hdl,
4566f6932dcSAndrew Thompson 	    USS820_RXCNTH) << 8);
45702ac6454SAndrew Thompson 	count &= 0x3FF;
45802ac6454SAndrew Thompson 
45902ac6454SAndrew Thompson 	DPRINTFN(5, "count=0x%04x\n", count);
46002ac6454SAndrew Thompson 
46102ac6454SAndrew Thompson 	/* verify the packet byte count */
46202ac6454SAndrew Thompson 	if (count != td->max_packet_size) {
46302ac6454SAndrew Thompson 		if (count < td->max_packet_size) {
46402ac6454SAndrew Thompson 			/* we have a short packet */
46502ac6454SAndrew Thompson 			td->short_pkt = 1;
46602ac6454SAndrew Thompson 			got_short = 1;
46702ac6454SAndrew Thompson 		} else {
46802ac6454SAndrew Thompson 			/* invalid USB packet */
46902ac6454SAndrew Thompson 			td->error = 1;
47002ac6454SAndrew Thompson 			return (0);	/* we are complete */
47102ac6454SAndrew Thompson 		}
47202ac6454SAndrew Thompson 	}
47302ac6454SAndrew Thompson 	/* verify the packet byte count */
47402ac6454SAndrew Thompson 	if (count > td->remainder) {
47502ac6454SAndrew Thompson 		/* invalid USB packet */
47602ac6454SAndrew Thompson 		td->error = 1;
47702ac6454SAndrew Thompson 		return (0);		/* we are complete */
47802ac6454SAndrew Thompson 	}
47902ac6454SAndrew Thompson 	while (count > 0) {
480a593f6b8SAndrew Thompson 		usbd_get_page(td->pc, td->offset, &buf_res);
48102ac6454SAndrew Thompson 
48202ac6454SAndrew Thompson 		/* get correct length */
48302ac6454SAndrew Thompson 		if (buf_res.length > count) {
48402ac6454SAndrew Thompson 			buf_res.length = count;
48502ac6454SAndrew Thompson 		}
48602ac6454SAndrew Thompson 		/* receive data */
48702ac6454SAndrew Thompson 		bus_space_read_multi_1(td->io_tag, td->io_hdl,
4886f6932dcSAndrew Thompson 		    USS820_RXDAT, buf_res.buffer, buf_res.length);
48902ac6454SAndrew Thompson 
49002ac6454SAndrew Thompson 		/* update counters */
49102ac6454SAndrew Thompson 		count -= buf_res.length;
49202ac6454SAndrew Thompson 		td->offset += buf_res.length;
49302ac6454SAndrew Thompson 		td->remainder -= buf_res.length;
49402ac6454SAndrew Thompson 	}
49502ac6454SAndrew Thompson 
49602ac6454SAndrew Thompson 	/* set RXFFRC bit */
49702ac6454SAndrew Thompson 	rx_cntl = bus_space_read_1(td->io_tag, td->io_hdl,
4986f6932dcSAndrew Thompson 	    USS820_RXCON);
49902ac6454SAndrew Thompson 	rx_cntl |= USS820_RXCON_RXFFRC;
50002ac6454SAndrew Thompson 	bus_space_write_1(td->io_tag, td->io_hdl,
5016f6932dcSAndrew Thompson 	    USS820_RXCON, rx_cntl);
50202ac6454SAndrew Thompson 
50302ac6454SAndrew Thompson 	/* check if we are complete */
50402ac6454SAndrew Thompson 	if ((td->remainder == 0) || got_short) {
50502ac6454SAndrew Thompson 		if (td->short_pkt) {
50602ac6454SAndrew Thompson 			/* we are complete */
50702ac6454SAndrew Thompson 			return (0);
50802ac6454SAndrew Thompson 		}
50902ac6454SAndrew Thompson 		/* else need to receive a zero length packet */
51002ac6454SAndrew Thompson 	}
51102ac6454SAndrew Thompson 	if (--to) {
51202ac6454SAndrew Thompson 		goto repeat;
51302ac6454SAndrew Thompson 	}
51402ac6454SAndrew Thompson 	return (1);			/* not complete */
51502ac6454SAndrew Thompson }
51602ac6454SAndrew Thompson 
51702ac6454SAndrew Thompson static uint8_t
51802ac6454SAndrew Thompson uss820dci_data_tx(struct uss820dci_td *td)
51902ac6454SAndrew Thompson {
520760bc48eSAndrew Thompson 	struct usb_page_search buf_res;
52102ac6454SAndrew Thompson 	uint16_t count;
52202ac6454SAndrew Thompson 	uint16_t count_copy;
52302ac6454SAndrew Thompson 	uint8_t rx_stat;
52402ac6454SAndrew Thompson 	uint8_t tx_flag;
52502ac6454SAndrew Thompson 	uint8_t to;
52602ac6454SAndrew Thompson 
52702ac6454SAndrew Thompson 	/* select the correct endpoint */
52802ac6454SAndrew Thompson 	bus_space_write_1(td->io_tag, td->io_hdl,
5296f6932dcSAndrew Thompson 	    USS820_EPINDEX, td->ep_index);
53002ac6454SAndrew Thompson 
53102ac6454SAndrew Thompson 	to = 2;				/* don't loop forever! */
53202ac6454SAndrew Thompson 
53302ac6454SAndrew Thompson repeat:
53402ac6454SAndrew Thompson 	/* read out TX FIFO flags */
53502ac6454SAndrew Thompson 	tx_flag = bus_space_read_1(td->io_tag, td->io_hdl,
5366f6932dcSAndrew Thompson 	    USS820_TXFLG);
53702ac6454SAndrew Thompson 
53802ac6454SAndrew Thompson 	/* read out RX FIFO status last */
53902ac6454SAndrew Thompson 	rx_stat = bus_space_read_1(td->io_tag, td->io_hdl,
5406f6932dcSAndrew Thompson 	    USS820_RXSTAT);
54102ac6454SAndrew Thompson 
54202ac6454SAndrew Thompson 	DPRINTFN(5, "rx_stat=0x%02x tx_flag=0x%02x rem=%u\n",
54302ac6454SAndrew Thompson 	    rx_stat, tx_flag, td->remainder);
54402ac6454SAndrew Thompson 
54502ac6454SAndrew Thompson 	if (rx_stat & (USS820_RXSTAT_RXSETUP |
54602ac6454SAndrew Thompson 	    USS820_RXSTAT_RXSOVW |
54702ac6454SAndrew Thompson 	    USS820_RXSTAT_EDOVW)) {
54802ac6454SAndrew Thompson 		/*
54902ac6454SAndrew Thompson 	         * The current transfer was aborted
55002ac6454SAndrew Thompson 	         * by the USB Host
55102ac6454SAndrew Thompson 	         */
55202ac6454SAndrew Thompson 		td->error = 1;
55302ac6454SAndrew Thompson 		return (0);		/* complete */
55402ac6454SAndrew Thompson 	}
55502ac6454SAndrew Thompson 	if (tx_flag & (USS820_TXFLG_TXOVF |
55602ac6454SAndrew Thompson 	    USS820_TXFLG_TXURF)) {
55702ac6454SAndrew Thompson 		td->error = 1;
55802ac6454SAndrew Thompson 		return (0);		/* complete */
55902ac6454SAndrew Thompson 	}
56002ac6454SAndrew Thompson 	if (tx_flag & USS820_TXFLG_TXFIF0) {
56102ac6454SAndrew Thompson 		if (tx_flag & USS820_TXFLG_TXFIF1) {
56202ac6454SAndrew Thompson 			return (1);	/* not complete */
56302ac6454SAndrew Thompson 		}
56402ac6454SAndrew Thompson 	}
56502ac6454SAndrew Thompson 	if ((!td->support_multi_buffer) &&
56602ac6454SAndrew Thompson 	    (tx_flag & (USS820_TXFLG_TXFIF0 |
56702ac6454SAndrew Thompson 	    USS820_TXFLG_TXFIF1))) {
56802ac6454SAndrew Thompson 		return (1);		/* not complete */
56902ac6454SAndrew Thompson 	}
57002ac6454SAndrew Thompson 	count = td->max_packet_size;
57102ac6454SAndrew Thompson 	if (td->remainder < count) {
57202ac6454SAndrew Thompson 		/* we have a short packet */
57302ac6454SAndrew Thompson 		td->short_pkt = 1;
57402ac6454SAndrew Thompson 		count = td->remainder;
57502ac6454SAndrew Thompson 	}
57602ac6454SAndrew Thompson 	count_copy = count;
57702ac6454SAndrew Thompson 	while (count > 0) {
57802ac6454SAndrew Thompson 
579a593f6b8SAndrew Thompson 		usbd_get_page(td->pc, td->offset, &buf_res);
58002ac6454SAndrew Thompson 
58102ac6454SAndrew Thompson 		/* get correct length */
58202ac6454SAndrew Thompson 		if (buf_res.length > count) {
58302ac6454SAndrew Thompson 			buf_res.length = count;
58402ac6454SAndrew Thompson 		}
58502ac6454SAndrew Thompson 		/* transmit data */
58602ac6454SAndrew Thompson 		bus_space_write_multi_1(td->io_tag, td->io_hdl,
5876f6932dcSAndrew Thompson 		    USS820_TXDAT, buf_res.buffer, buf_res.length);
58802ac6454SAndrew Thompson 
58902ac6454SAndrew Thompson 		/* update counters */
59002ac6454SAndrew Thompson 		count -= buf_res.length;
59102ac6454SAndrew Thompson 		td->offset += buf_res.length;
59202ac6454SAndrew Thompson 		td->remainder -= buf_res.length;
59302ac6454SAndrew Thompson 	}
59402ac6454SAndrew Thompson 
59502ac6454SAndrew Thompson 	/* post-write high packet byte count first */
59602ac6454SAndrew Thompson 	bus_space_write_1(td->io_tag, td->io_hdl,
5976f6932dcSAndrew Thompson 	    USS820_TXCNTH, count_copy >> 8);
59802ac6454SAndrew Thompson 
59902ac6454SAndrew Thompson 	/* post-write low packet byte count last */
60002ac6454SAndrew Thompson 	bus_space_write_1(td->io_tag, td->io_hdl,
6016f6932dcSAndrew Thompson 	    USS820_TXCNTL, count_copy);
60202ac6454SAndrew Thompson 
60302ac6454SAndrew Thompson 	/*
60402ac6454SAndrew Thompson 	 * Enable TX output, which must happen after that we have written
60502ac6454SAndrew Thompson 	 * data into the FIFO. This is undocumented.
60602ac6454SAndrew Thompson 	 */
607476183dfSAndrew Thompson 	if (!td->did_enable) {
60802ac6454SAndrew Thompson 		uss820dci_update_shared_1(USS820_DCI_PC2SC(td->pc),
60902ac6454SAndrew Thompson 		    USS820_EPCON, 0xFF, USS820_EPCON_TXOE);
610476183dfSAndrew Thompson 		td->did_enable = 1;
61102ac6454SAndrew Thompson 	}
61202ac6454SAndrew Thompson 	/* check remainder */
61302ac6454SAndrew Thompson 	if (td->remainder == 0) {
61402ac6454SAndrew Thompson 		if (td->short_pkt) {
61502ac6454SAndrew Thompson 			return (0);	/* complete */
61602ac6454SAndrew Thompson 		}
61702ac6454SAndrew Thompson 		/* else we need to transmit a short packet */
61802ac6454SAndrew Thompson 	}
61902ac6454SAndrew Thompson 	if (--to) {
62002ac6454SAndrew Thompson 		goto repeat;
62102ac6454SAndrew Thompson 	}
62202ac6454SAndrew Thompson 	return (1);			/* not complete */
62302ac6454SAndrew Thompson }
62402ac6454SAndrew Thompson 
62502ac6454SAndrew Thompson static uint8_t
62602ac6454SAndrew Thompson uss820dci_data_tx_sync(struct uss820dci_td *td)
62702ac6454SAndrew Thompson {
62802ac6454SAndrew Thompson 	struct uss820dci_softc *sc;
62902ac6454SAndrew Thompson 	uint8_t rx_stat;
63002ac6454SAndrew Thompson 	uint8_t tx_flag;
63102ac6454SAndrew Thompson 
63202ac6454SAndrew Thompson 	/* select the correct endpoint */
63302ac6454SAndrew Thompson 	bus_space_write_1(td->io_tag, td->io_hdl,
6346f6932dcSAndrew Thompson 	    USS820_EPINDEX, td->ep_index);
63502ac6454SAndrew Thompson 
63602ac6454SAndrew Thompson 	/* read out TX FIFO flag */
63702ac6454SAndrew Thompson 	tx_flag = bus_space_read_1(td->io_tag, td->io_hdl,
6386f6932dcSAndrew Thompson 	    USS820_TXFLG);
63902ac6454SAndrew Thompson 
64002ac6454SAndrew Thompson 	/* read out RX FIFO status last */
64102ac6454SAndrew Thompson 	rx_stat = bus_space_read_1(td->io_tag, td->io_hdl,
6426f6932dcSAndrew Thompson 	    USS820_RXSTAT);
64302ac6454SAndrew Thompson 
64402ac6454SAndrew Thompson 	DPRINTFN(5, "rx_stat=0x%02x rem=%u\n", rx_stat, td->remainder);
64502ac6454SAndrew Thompson 
64602ac6454SAndrew Thompson 	if (rx_stat & (USS820_RXSTAT_RXSETUP |
64702ac6454SAndrew Thompson 	    USS820_RXSTAT_RXSOVW |
64802ac6454SAndrew Thompson 	    USS820_RXSTAT_EDOVW)) {
64902ac6454SAndrew Thompson 		DPRINTFN(5, "faking complete\n");
65002ac6454SAndrew Thompson 		/* Race condition */
65102ac6454SAndrew Thompson 		return (0);		/* complete */
65202ac6454SAndrew Thompson 	}
65302ac6454SAndrew Thompson 	DPRINTFN(5, "tx_flag=0x%02x rem=%u\n",
65402ac6454SAndrew Thompson 	    tx_flag, td->remainder);
65502ac6454SAndrew Thompson 
65602ac6454SAndrew Thompson 	if (tx_flag & (USS820_TXFLG_TXOVF |
65702ac6454SAndrew Thompson 	    USS820_TXFLG_TXURF)) {
65802ac6454SAndrew Thompson 		td->error = 1;
65902ac6454SAndrew Thompson 		return (0);		/* complete */
66002ac6454SAndrew Thompson 	}
66102ac6454SAndrew Thompson 	if (tx_flag & (USS820_TXFLG_TXFIF0 |
66202ac6454SAndrew Thompson 	    USS820_TXFLG_TXFIF1)) {
66302ac6454SAndrew Thompson 		return (1);		/* not complete */
66402ac6454SAndrew Thompson 	}
66502ac6454SAndrew Thompson 	sc = USS820_DCI_PC2SC(td->pc);
66602ac6454SAndrew Thompson 	if (sc->sc_dv_addr != 0xFF) {
66702ac6454SAndrew Thompson 		/* write function address */
66802ac6454SAndrew Thompson 		uss820dci_set_address(sc, sc->sc_dv_addr);
66902ac6454SAndrew Thompson 	}
67002ac6454SAndrew Thompson 	return (0);			/* complete */
67102ac6454SAndrew Thompson }
67202ac6454SAndrew Thompson 
67302ac6454SAndrew Thompson static uint8_t
674760bc48eSAndrew Thompson uss820dci_xfer_do_fifo(struct usb_xfer *xfer)
67502ac6454SAndrew Thompson {
67602ac6454SAndrew Thompson 	struct uss820dci_td *td;
67702ac6454SAndrew Thompson 
67802ac6454SAndrew Thompson 	DPRINTFN(9, "\n");
67902ac6454SAndrew Thompson 
68002ac6454SAndrew Thompson 	td = xfer->td_transfer_cache;
68102ac6454SAndrew Thompson 	while (1) {
68202ac6454SAndrew Thompson 		if ((td->func) (td)) {
68302ac6454SAndrew Thompson 			/* operation in progress */
68402ac6454SAndrew Thompson 			break;
68502ac6454SAndrew Thompson 		}
68602ac6454SAndrew Thompson 		if (((void *)td) == xfer->td_transfer_last) {
68702ac6454SAndrew Thompson 			goto done;
68802ac6454SAndrew Thompson 		}
68902ac6454SAndrew Thompson 		if (td->error) {
69002ac6454SAndrew Thompson 			goto done;
69102ac6454SAndrew Thompson 		} else if (td->remainder > 0) {
69202ac6454SAndrew Thompson 			/*
69302ac6454SAndrew Thompson 			 * We had a short transfer. If there is no alternate
69402ac6454SAndrew Thompson 			 * next, stop processing !
69502ac6454SAndrew Thompson 			 */
69602ac6454SAndrew Thompson 			if (!td->alt_next) {
69702ac6454SAndrew Thompson 				goto done;
69802ac6454SAndrew Thompson 			}
69902ac6454SAndrew Thompson 		}
70002ac6454SAndrew Thompson 		/*
70102ac6454SAndrew Thompson 		 * Fetch the next transfer descriptor.
70202ac6454SAndrew Thompson 		 */
70302ac6454SAndrew Thompson 		td = td->obj_next;
70402ac6454SAndrew Thompson 		xfer->td_transfer_cache = td;
70502ac6454SAndrew Thompson 	}
70602ac6454SAndrew Thompson 	return (1);			/* not complete */
70702ac6454SAndrew Thompson 
70802ac6454SAndrew Thompson done:
70902ac6454SAndrew Thompson 	/* compute all actual lengths */
71002ac6454SAndrew Thompson 
71102ac6454SAndrew Thompson 	uss820dci_standard_done(xfer);
71202ac6454SAndrew Thompson 
71302ac6454SAndrew Thompson 	return (0);			/* complete */
71402ac6454SAndrew Thompson }
71502ac6454SAndrew Thompson 
71602ac6454SAndrew Thompson static void
71702ac6454SAndrew Thompson uss820dci_interrupt_poll(struct uss820dci_softc *sc)
71802ac6454SAndrew Thompson {
719760bc48eSAndrew Thompson 	struct usb_xfer *xfer;
72002ac6454SAndrew Thompson 
72102ac6454SAndrew Thompson repeat:
72202ac6454SAndrew Thompson 	TAILQ_FOREACH(xfer, &sc->sc_bus.intr_q.head, wait_entry) {
72302ac6454SAndrew Thompson 		if (!uss820dci_xfer_do_fifo(xfer)) {
72402ac6454SAndrew Thompson 			/* queue has been modified */
72502ac6454SAndrew Thompson 			goto repeat;
72602ac6454SAndrew Thompson 		}
72702ac6454SAndrew Thompson 	}
72802ac6454SAndrew Thompson }
72902ac6454SAndrew Thompson 
73002ac6454SAndrew Thompson static void
73102ac6454SAndrew Thompson uss820dci_wait_suspend(struct uss820dci_softc *sc, uint8_t on)
73202ac6454SAndrew Thompson {
73302ac6454SAndrew Thompson 	uint8_t scr;
73402ac6454SAndrew Thompson 	uint8_t scratch;
73502ac6454SAndrew Thompson 
73602ac6454SAndrew Thompson 	scr = USS820_READ_1(sc, USS820_SCR);
73702ac6454SAndrew Thompson 	scratch = USS820_READ_1(sc, USS820_SCRATCH);
73802ac6454SAndrew Thompson 
73902ac6454SAndrew Thompson 	if (on) {
74002ac6454SAndrew Thompson 		scr |= USS820_SCR_IE_SUSP;
74102ac6454SAndrew Thompson 		scratch &= ~USS820_SCRATCH_IE_RESUME;
74202ac6454SAndrew Thompson 	} else {
74302ac6454SAndrew Thompson 		scr &= ~USS820_SCR_IE_SUSP;
74402ac6454SAndrew Thompson 		scratch |= USS820_SCRATCH_IE_RESUME;
74502ac6454SAndrew Thompson 	}
74602ac6454SAndrew Thompson 
74702ac6454SAndrew Thompson 	USS820_WRITE_1(sc, USS820_SCR, scr);
74802ac6454SAndrew Thompson 	USS820_WRITE_1(sc, USS820_SCRATCH, scratch);
74902ac6454SAndrew Thompson }
75002ac6454SAndrew Thompson 
75102ac6454SAndrew Thompson void
75202ac6454SAndrew Thompson uss820dci_interrupt(struct uss820dci_softc *sc)
75302ac6454SAndrew Thompson {
75402ac6454SAndrew Thompson 	uint8_t ssr;
75502ac6454SAndrew Thompson 	uint8_t event;
75602ac6454SAndrew Thompson 
75702ac6454SAndrew Thompson 	USB_BUS_LOCK(&sc->sc_bus);
75802ac6454SAndrew Thompson 
75902ac6454SAndrew Thompson 	ssr = USS820_READ_1(sc, USS820_SSR);
76002ac6454SAndrew Thompson 
76102ac6454SAndrew Thompson 	ssr &= (USS820_SSR_SUSPEND |
76202ac6454SAndrew Thompson 	    USS820_SSR_RESUME |
76302ac6454SAndrew Thompson 	    USS820_SSR_RESET);
76402ac6454SAndrew Thompson 
76502ac6454SAndrew Thompson 	/* acknowledge all interrupts */
76602ac6454SAndrew Thompson 
76702ac6454SAndrew Thompson 	uss820dci_update_shared_1(sc, USS820_SSR, 0, 0);
76802ac6454SAndrew Thompson 
76902ac6454SAndrew Thompson 	/* check for any bus state change interrupts */
77002ac6454SAndrew Thompson 
77102ac6454SAndrew Thompson 	if (ssr) {
77202ac6454SAndrew Thompson 
77302ac6454SAndrew Thompson 		event = 0;
77402ac6454SAndrew Thompson 
77502ac6454SAndrew Thompson 		if (ssr & USS820_SSR_RESET) {
77602ac6454SAndrew Thompson 			sc->sc_flags.status_bus_reset = 1;
77702ac6454SAndrew Thompson 			sc->sc_flags.status_suspend = 0;
77802ac6454SAndrew Thompson 			sc->sc_flags.change_suspend = 0;
77902ac6454SAndrew Thompson 			sc->sc_flags.change_connect = 1;
78002ac6454SAndrew Thompson 
78102ac6454SAndrew Thompson 			/* disable resume interrupt */
78202ac6454SAndrew Thompson 			uss820dci_wait_suspend(sc, 1);
78302ac6454SAndrew Thompson 
78402ac6454SAndrew Thompson 			event = 1;
78502ac6454SAndrew Thompson 		}
78602ac6454SAndrew Thompson 		/*
78702ac6454SAndrew Thompson 	         * If "RESUME" and "SUSPEND" is set at the same time
78802ac6454SAndrew Thompson 	         * we interpret that like "RESUME". Resume is set when
78902ac6454SAndrew Thompson 	         * there is at least 3 milliseconds of inactivity on
79002ac6454SAndrew Thompson 	         * the USB BUS.
79102ac6454SAndrew Thompson 	         */
79202ac6454SAndrew Thompson 		if (ssr & USS820_SSR_RESUME) {
79302ac6454SAndrew Thompson 			if (sc->sc_flags.status_suspend) {
79402ac6454SAndrew Thompson 				sc->sc_flags.status_suspend = 0;
79502ac6454SAndrew Thompson 				sc->sc_flags.change_suspend = 1;
79602ac6454SAndrew Thompson 				/* disable resume interrupt */
79702ac6454SAndrew Thompson 				uss820dci_wait_suspend(sc, 1);
79802ac6454SAndrew Thompson 				event = 1;
79902ac6454SAndrew Thompson 			}
80002ac6454SAndrew Thompson 		} else if (ssr & USS820_SSR_SUSPEND) {
80102ac6454SAndrew Thompson 			if (!sc->sc_flags.status_suspend) {
80202ac6454SAndrew Thompson 				sc->sc_flags.status_suspend = 1;
80302ac6454SAndrew Thompson 				sc->sc_flags.change_suspend = 1;
80402ac6454SAndrew Thompson 				/* enable resume interrupt */
80502ac6454SAndrew Thompson 				uss820dci_wait_suspend(sc, 0);
80602ac6454SAndrew Thompson 				event = 1;
80702ac6454SAndrew Thompson 			}
80802ac6454SAndrew Thompson 		}
80902ac6454SAndrew Thompson 		if (event) {
81002ac6454SAndrew Thompson 
81102ac6454SAndrew Thompson 			DPRINTF("real bus interrupt 0x%02x\n", ssr);
81202ac6454SAndrew Thompson 
81302ac6454SAndrew Thompson 			/* complete root HUB interrupt endpoint */
81439307315SAndrew Thompson 			uss820dci_root_intr(sc);
81502ac6454SAndrew Thompson 		}
81602ac6454SAndrew Thompson 	}
81702ac6454SAndrew Thompson 	/* acknowledge all SBI interrupts */
81802ac6454SAndrew Thompson 	uss820dci_update_shared_1(sc, USS820_SBI, 0, 0);
81902ac6454SAndrew Thompson 
82002ac6454SAndrew Thompson 	/* acknowledge all SBI1 interrupts */
82102ac6454SAndrew Thompson 	uss820dci_update_shared_1(sc, USS820_SBI1, 0, 0);
82202ac6454SAndrew Thompson 
82302ac6454SAndrew Thompson 	/* poll all active transfers */
82402ac6454SAndrew Thompson 	uss820dci_interrupt_poll(sc);
82502ac6454SAndrew Thompson 
82602ac6454SAndrew Thompson 	USB_BUS_UNLOCK(&sc->sc_bus);
82702ac6454SAndrew Thompson }
82802ac6454SAndrew Thompson 
82902ac6454SAndrew Thompson static void
83002ac6454SAndrew Thompson uss820dci_setup_standard_chain_sub(struct uss820_std_temp *temp)
83102ac6454SAndrew Thompson {
83202ac6454SAndrew Thompson 	struct uss820dci_td *td;
83302ac6454SAndrew Thompson 
83402ac6454SAndrew Thompson 	/* get current Transfer Descriptor */
83502ac6454SAndrew Thompson 	td = temp->td_next;
83602ac6454SAndrew Thompson 	temp->td = td;
83702ac6454SAndrew Thompson 
83802ac6454SAndrew Thompson 	/* prepare for next TD */
83902ac6454SAndrew Thompson 	temp->td_next = td->obj_next;
84002ac6454SAndrew Thompson 
84102ac6454SAndrew Thompson 	/* fill out the Transfer Descriptor */
84202ac6454SAndrew Thompson 	td->func = temp->func;
84302ac6454SAndrew Thompson 	td->pc = temp->pc;
84402ac6454SAndrew Thompson 	td->offset = temp->offset;
84502ac6454SAndrew Thompson 	td->remainder = temp->len;
84602ac6454SAndrew Thompson 	td->error = 0;
847476183dfSAndrew Thompson 	td->did_enable = 0;
848476183dfSAndrew Thompson 	td->did_stall = temp->did_stall;
84902ac6454SAndrew Thompson 	td->short_pkt = temp->short_pkt;
85002ac6454SAndrew Thompson 	td->alt_next = temp->setup_alt_next;
85102ac6454SAndrew Thompson }
85202ac6454SAndrew Thompson 
85302ac6454SAndrew Thompson static void
854760bc48eSAndrew Thompson uss820dci_setup_standard_chain(struct usb_xfer *xfer)
85502ac6454SAndrew Thompson {
85602ac6454SAndrew Thompson 	struct uss820_std_temp temp;
85702ac6454SAndrew Thompson 	struct uss820dci_softc *sc;
85802ac6454SAndrew Thompson 	struct uss820dci_td *td;
85902ac6454SAndrew Thompson 	uint32_t x;
86002ac6454SAndrew Thompson 	uint8_t ep_no;
86102ac6454SAndrew Thompson 
86202ac6454SAndrew Thompson 	DPRINTFN(9, "addr=%d endpt=%d sumlen=%d speed=%d\n",
863ae60fdfbSAndrew Thompson 	    xfer->address, UE_GET_ADDR(xfer->endpointno),
864a593f6b8SAndrew Thompson 	    xfer->sumlen, usbd_get_speed(xfer->xroot->udev));
86502ac6454SAndrew Thompson 
86602ac6454SAndrew Thompson 	temp.max_frame_size = xfer->max_frame_size;
86702ac6454SAndrew Thompson 
86802ac6454SAndrew Thompson 	td = xfer->td_start[0];
86902ac6454SAndrew Thompson 	xfer->td_transfer_first = td;
87002ac6454SAndrew Thompson 	xfer->td_transfer_cache = td;
87102ac6454SAndrew Thompson 
87202ac6454SAndrew Thompson 	/* setup temp */
87302ac6454SAndrew Thompson 
87478c94708SAndrew Thompson 	temp.pc = NULL;
87502ac6454SAndrew Thompson 	temp.td = NULL;
87602ac6454SAndrew Thompson 	temp.td_next = xfer->td_start[0];
87702ac6454SAndrew Thompson 	temp.offset = 0;
8780f7d4548SAndrew Thompson 	temp.setup_alt_next = xfer->flags_int.short_frames_ok;
879476183dfSAndrew Thompson 	temp.did_stall = !xfer->flags_int.control_stall;
88002ac6454SAndrew Thompson 
88102ac6454SAndrew Thompson 	sc = USS820_DCI_BUS2SC(xfer->xroot->bus);
882ae60fdfbSAndrew Thompson 	ep_no = (xfer->endpointno & UE_ADDR);
88302ac6454SAndrew Thompson 
88402ac6454SAndrew Thompson 	/* check if we should prepend a setup message */
88502ac6454SAndrew Thompson 
88602ac6454SAndrew Thompson 	if (xfer->flags_int.control_xfr) {
88702ac6454SAndrew Thompson 		if (xfer->flags_int.control_hdr) {
88802ac6454SAndrew Thompson 
88902ac6454SAndrew Thompson 			temp.func = &uss820dci_setup_rx;
89002ac6454SAndrew Thompson 			temp.len = xfer->frlengths[0];
89102ac6454SAndrew Thompson 			temp.pc = xfer->frbuffers + 0;
89202ac6454SAndrew Thompson 			temp.short_pkt = temp.len ? 1 : 0;
8930f7d4548SAndrew Thompson 			/* check for last frame */
8940f7d4548SAndrew Thompson 			if (xfer->nframes == 1) {
8950f7d4548SAndrew Thompson 				/* no STATUS stage yet, SETUP is last */
8960f7d4548SAndrew Thompson 				if (xfer->flags_int.control_act)
8970f7d4548SAndrew Thompson 					temp.setup_alt_next = 0;
8980f7d4548SAndrew Thompson 			}
89902ac6454SAndrew Thompson 
90002ac6454SAndrew Thompson 			uss820dci_setup_standard_chain_sub(&temp);
90102ac6454SAndrew Thompson 		}
90202ac6454SAndrew Thompson 		x = 1;
90302ac6454SAndrew Thompson 	} else {
90402ac6454SAndrew Thompson 		x = 0;
90502ac6454SAndrew Thompson 	}
90602ac6454SAndrew Thompson 
90702ac6454SAndrew Thompson 	if (x != xfer->nframes) {
908ae60fdfbSAndrew Thompson 		if (xfer->endpointno & UE_DIR_IN) {
90902ac6454SAndrew Thompson 			temp.func = &uss820dci_data_tx;
91002ac6454SAndrew Thompson 		} else {
91102ac6454SAndrew Thompson 			temp.func = &uss820dci_data_rx;
91202ac6454SAndrew Thompson 		}
91302ac6454SAndrew Thompson 
91402ac6454SAndrew Thompson 		/* setup "pc" pointer */
91502ac6454SAndrew Thompson 		temp.pc = xfer->frbuffers + x;
91602ac6454SAndrew Thompson 	}
91702ac6454SAndrew Thompson 	while (x != xfer->nframes) {
91802ac6454SAndrew Thompson 
91902ac6454SAndrew Thompson 		/* DATA0 / DATA1 message */
92002ac6454SAndrew Thompson 
92102ac6454SAndrew Thompson 		temp.len = xfer->frlengths[x];
92202ac6454SAndrew Thompson 
92302ac6454SAndrew Thompson 		x++;
92402ac6454SAndrew Thompson 
92502ac6454SAndrew Thompson 		if (x == xfer->nframes) {
9260f7d4548SAndrew Thompson 			if (xfer->flags_int.control_xfr) {
9270f7d4548SAndrew Thompson 				if (xfer->flags_int.control_act) {
92802ac6454SAndrew Thompson 					temp.setup_alt_next = 0;
92902ac6454SAndrew Thompson 				}
9300f7d4548SAndrew Thompson 			} else {
9310f7d4548SAndrew Thompson 				temp.setup_alt_next = 0;
9320f7d4548SAndrew Thompson 			}
9330f7d4548SAndrew Thompson 		}
93402ac6454SAndrew Thompson 		if (temp.len == 0) {
93502ac6454SAndrew Thompson 
93602ac6454SAndrew Thompson 			/* make sure that we send an USB packet */
93702ac6454SAndrew Thompson 
93802ac6454SAndrew Thompson 			temp.short_pkt = 0;
93902ac6454SAndrew Thompson 
94002ac6454SAndrew Thompson 		} else {
94102ac6454SAndrew Thompson 
94202ac6454SAndrew Thompson 			/* regular data transfer */
94302ac6454SAndrew Thompson 
94402ac6454SAndrew Thompson 			temp.short_pkt = (xfer->flags.force_short_xfer) ? 0 : 1;
94502ac6454SAndrew Thompson 		}
94602ac6454SAndrew Thompson 
94702ac6454SAndrew Thompson 		uss820dci_setup_standard_chain_sub(&temp);
94802ac6454SAndrew Thompson 
94902ac6454SAndrew Thompson 		if (xfer->flags_int.isochronous_xfr) {
95002ac6454SAndrew Thompson 			temp.offset += temp.len;
95102ac6454SAndrew Thompson 		} else {
95202ac6454SAndrew Thompson 			/* get next Page Cache pointer */
95302ac6454SAndrew Thompson 			temp.pc = xfer->frbuffers + x;
95402ac6454SAndrew Thompson 		}
95502ac6454SAndrew Thompson 	}
95602ac6454SAndrew Thompson 
9570f7d4548SAndrew Thompson 	/* check for control transfer */
9580f7d4548SAndrew Thompson 	if (xfer->flags_int.control_xfr) {
9590f7d4548SAndrew Thompson 		uint8_t need_sync;
9600f7d4548SAndrew Thompson 
96102ac6454SAndrew Thompson 		/* always setup a valid "pc" pointer for status and sync */
96202ac6454SAndrew Thompson 		temp.pc = xfer->frbuffers + 0;
9630f7d4548SAndrew Thompson 		temp.len = 0;
9640f7d4548SAndrew Thompson 		temp.short_pkt = 0;
9650f7d4548SAndrew Thompson 		temp.setup_alt_next = 0;
96602ac6454SAndrew Thompson 
96702ac6454SAndrew Thompson 		/* check if we should append a status stage */
9680f7d4548SAndrew Thompson 		if (!xfer->flags_int.control_act) {
96902ac6454SAndrew Thompson 
97002ac6454SAndrew Thompson 			/*
97102ac6454SAndrew Thompson 			 * Send a DATA1 message and invert the current
97202ac6454SAndrew Thompson 			 * endpoint direction.
97302ac6454SAndrew Thompson 			 */
974ae60fdfbSAndrew Thompson 			if (xfer->endpointno & UE_DIR_IN) {
97502ac6454SAndrew Thompson 				temp.func = &uss820dci_data_rx;
97602ac6454SAndrew Thompson 				need_sync = 0;
97702ac6454SAndrew Thompson 			} else {
97802ac6454SAndrew Thompson 				temp.func = &uss820dci_data_tx;
97902ac6454SAndrew Thompson 				need_sync = 1;
98002ac6454SAndrew Thompson 			}
98102ac6454SAndrew Thompson 			temp.len = 0;
98202ac6454SAndrew Thompson 			temp.short_pkt = 0;
98302ac6454SAndrew Thompson 
98402ac6454SAndrew Thompson 			uss820dci_setup_standard_chain_sub(&temp);
98502ac6454SAndrew Thompson 			if (need_sync) {
98602ac6454SAndrew Thompson 				/* we need a SYNC point after TX */
98702ac6454SAndrew Thompson 				temp.func = &uss820dci_data_tx_sync;
98802ac6454SAndrew Thompson 				uss820dci_setup_standard_chain_sub(&temp);
98902ac6454SAndrew Thompson 			}
99002ac6454SAndrew Thompson 		}
9910f7d4548SAndrew Thompson 	}
99202ac6454SAndrew Thompson 	/* must have at least one frame! */
99302ac6454SAndrew Thompson 	td = temp.td;
99402ac6454SAndrew Thompson 	xfer->td_transfer_last = td;
99502ac6454SAndrew Thompson }
99602ac6454SAndrew Thompson 
99702ac6454SAndrew Thompson static void
99802ac6454SAndrew Thompson uss820dci_timeout(void *arg)
99902ac6454SAndrew Thompson {
1000760bc48eSAndrew Thompson 	struct usb_xfer *xfer = arg;
100102ac6454SAndrew Thompson 
100202ac6454SAndrew Thompson 	DPRINTF("xfer=%p\n", xfer);
100302ac6454SAndrew Thompson 
100402ac6454SAndrew Thompson 	USB_BUS_LOCK_ASSERT(xfer->xroot->bus, MA_OWNED);
100502ac6454SAndrew Thompson 
100602ac6454SAndrew Thompson 	/* transfer is transferred */
100702ac6454SAndrew Thompson 	uss820dci_device_done(xfer, USB_ERR_TIMEOUT);
100802ac6454SAndrew Thompson }
100902ac6454SAndrew Thompson 
101002ac6454SAndrew Thompson static void
1011760bc48eSAndrew Thompson uss820dci_intr_set(struct usb_xfer *xfer, uint8_t set)
101202ac6454SAndrew Thompson {
101302ac6454SAndrew Thompson 	struct uss820dci_softc *sc = USS820_DCI_BUS2SC(xfer->xroot->bus);
1014ae60fdfbSAndrew Thompson 	uint8_t ep_no = (xfer->endpointno & UE_ADDR);
101502ac6454SAndrew Thompson 	uint8_t ep_reg;
101602ac6454SAndrew Thompson 	uint8_t temp;
101702ac6454SAndrew Thompson 
1018ae60fdfbSAndrew Thompson 	DPRINTFN(15, "endpoint 0x%02x\n", xfer->endpointno);
101902ac6454SAndrew Thompson 
102002ac6454SAndrew Thompson 	if (ep_no > 3) {
102102ac6454SAndrew Thompson 		ep_reg = USS820_SBIE1;
102202ac6454SAndrew Thompson 	} else {
102302ac6454SAndrew Thompson 		ep_reg = USS820_SBIE;
102402ac6454SAndrew Thompson 	}
102502ac6454SAndrew Thompson 
102602ac6454SAndrew Thompson 	ep_no &= 3;
102702ac6454SAndrew Thompson 	ep_no = 1 << (2 * ep_no);
102802ac6454SAndrew Thompson 
102902ac6454SAndrew Thompson 	if (xfer->flags_int.control_xfr) {
103002ac6454SAndrew Thompson 		if (xfer->flags_int.control_hdr) {
103102ac6454SAndrew Thompson 			ep_no <<= 1;	/* RX interrupt only */
103202ac6454SAndrew Thompson 		} else {
103302ac6454SAndrew Thompson 			ep_no |= (ep_no << 1);	/* RX and TX interrupt */
103402ac6454SAndrew Thompson 		}
103502ac6454SAndrew Thompson 	} else {
1036ae60fdfbSAndrew Thompson 		if (!(xfer->endpointno & UE_DIR_IN)) {
103702ac6454SAndrew Thompson 			ep_no <<= 1;
103802ac6454SAndrew Thompson 		}
103902ac6454SAndrew Thompson 	}
104002ac6454SAndrew Thompson 	temp = USS820_READ_1(sc, ep_reg);
104102ac6454SAndrew Thompson 	if (set) {
104202ac6454SAndrew Thompson 		temp |= ep_no;
104302ac6454SAndrew Thompson 	} else {
104402ac6454SAndrew Thompson 		temp &= ~ep_no;
104502ac6454SAndrew Thompson 	}
104602ac6454SAndrew Thompson 	USS820_WRITE_1(sc, ep_reg, temp);
104702ac6454SAndrew Thompson }
104802ac6454SAndrew Thompson 
104902ac6454SAndrew Thompson static void
1050760bc48eSAndrew Thompson uss820dci_start_standard_chain(struct usb_xfer *xfer)
105102ac6454SAndrew Thompson {
105202ac6454SAndrew Thompson 	DPRINTFN(9, "\n");
105302ac6454SAndrew Thompson 
105402ac6454SAndrew Thompson 	/* poll one time */
105502ac6454SAndrew Thompson 	if (uss820dci_xfer_do_fifo(xfer)) {
105602ac6454SAndrew Thompson 
105702ac6454SAndrew Thompson 		/*
105802ac6454SAndrew Thompson 		 * Only enable the endpoint interrupt when we are
105902ac6454SAndrew Thompson 		 * actually waiting for data, hence we are dealing
106002ac6454SAndrew Thompson 		 * with level triggered interrupts !
106102ac6454SAndrew Thompson 		 */
106202ac6454SAndrew Thompson 		uss820dci_intr_set(xfer, 1);
106302ac6454SAndrew Thompson 
106402ac6454SAndrew Thompson 		/* put transfer on interrupt queue */
1065a593f6b8SAndrew Thompson 		usbd_transfer_enqueue(&xfer->xroot->bus->intr_q, xfer);
106602ac6454SAndrew Thompson 
106702ac6454SAndrew Thompson 		/* start timeout, if any */
106802ac6454SAndrew Thompson 		if (xfer->timeout != 0) {
1069a593f6b8SAndrew Thompson 			usbd_transfer_timeout_ms(xfer,
107002ac6454SAndrew Thompson 			    &uss820dci_timeout, xfer->timeout);
107102ac6454SAndrew Thompson 		}
107202ac6454SAndrew Thompson 	}
107302ac6454SAndrew Thompson }
107402ac6454SAndrew Thompson 
107502ac6454SAndrew Thompson static void
107639307315SAndrew Thompson uss820dci_root_intr(struct uss820dci_softc *sc)
107702ac6454SAndrew Thompson {
107802ac6454SAndrew Thompson 	DPRINTFN(9, "\n");
107902ac6454SAndrew Thompson 
108002ac6454SAndrew Thompson 	USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED);
108102ac6454SAndrew Thompson 
108202ac6454SAndrew Thompson 	/* set port bit */
108302ac6454SAndrew Thompson 	sc->sc_hub_idata[0] = 0x02;	/* we only have one port */
108402ac6454SAndrew Thompson 
108539307315SAndrew Thompson 	uhub_root_intr(&sc->sc_bus, sc->sc_hub_idata,
108639307315SAndrew Thompson 	    sizeof(sc->sc_hub_idata));
108702ac6454SAndrew Thompson }
108802ac6454SAndrew Thompson 
1089e0a69b51SAndrew Thompson static usb_error_t
1090760bc48eSAndrew Thompson uss820dci_standard_done_sub(struct usb_xfer *xfer)
109102ac6454SAndrew Thompson {
109202ac6454SAndrew Thompson 	struct uss820dci_td *td;
109302ac6454SAndrew Thompson 	uint32_t len;
109402ac6454SAndrew Thompson 	uint8_t error;
109502ac6454SAndrew Thompson 
109602ac6454SAndrew Thompson 	DPRINTFN(9, "\n");
109702ac6454SAndrew Thompson 
109802ac6454SAndrew Thompson 	td = xfer->td_transfer_cache;
109902ac6454SAndrew Thompson 
110002ac6454SAndrew Thompson 	do {
110102ac6454SAndrew Thompson 		len = td->remainder;
110202ac6454SAndrew Thompson 
110302ac6454SAndrew Thompson 		if (xfer->aframes != xfer->nframes) {
110402ac6454SAndrew Thompson 			/*
110502ac6454SAndrew Thompson 		         * Verify the length and subtract
110602ac6454SAndrew Thompson 		         * the remainder from "frlengths[]":
110702ac6454SAndrew Thompson 		         */
110802ac6454SAndrew Thompson 			if (len > xfer->frlengths[xfer->aframes]) {
110902ac6454SAndrew Thompson 				td->error = 1;
111002ac6454SAndrew Thompson 			} else {
111102ac6454SAndrew Thompson 				xfer->frlengths[xfer->aframes] -= len;
111202ac6454SAndrew Thompson 			}
111302ac6454SAndrew Thompson 		}
111402ac6454SAndrew Thompson 		/* Check for transfer error */
111502ac6454SAndrew Thompson 		if (td->error) {
111602ac6454SAndrew Thompson 			/* the transfer is finished */
111702ac6454SAndrew Thompson 			error = 1;
111802ac6454SAndrew Thompson 			td = NULL;
111902ac6454SAndrew Thompson 			break;
112002ac6454SAndrew Thompson 		}
112102ac6454SAndrew Thompson 		/* Check for short transfer */
112202ac6454SAndrew Thompson 		if (len > 0) {
112302ac6454SAndrew Thompson 			if (xfer->flags_int.short_frames_ok) {
112402ac6454SAndrew Thompson 				/* follow alt next */
112502ac6454SAndrew Thompson 				if (td->alt_next) {
112602ac6454SAndrew Thompson 					td = td->obj_next;
112702ac6454SAndrew Thompson 				} else {
112802ac6454SAndrew Thompson 					td = NULL;
112902ac6454SAndrew Thompson 				}
113002ac6454SAndrew Thompson 			} else {
113102ac6454SAndrew Thompson 				/* the transfer is finished */
113202ac6454SAndrew Thompson 				td = NULL;
113302ac6454SAndrew Thompson 			}
113402ac6454SAndrew Thompson 			error = 0;
113502ac6454SAndrew Thompson 			break;
113602ac6454SAndrew Thompson 		}
113702ac6454SAndrew Thompson 		td = td->obj_next;
113802ac6454SAndrew Thompson 
113902ac6454SAndrew Thompson 		/* this USB frame is complete */
114002ac6454SAndrew Thompson 		error = 0;
114102ac6454SAndrew Thompson 		break;
114202ac6454SAndrew Thompson 
114302ac6454SAndrew Thompson 	} while (0);
114402ac6454SAndrew Thompson 
114502ac6454SAndrew Thompson 	/* update transfer cache */
114602ac6454SAndrew Thompson 
114702ac6454SAndrew Thompson 	xfer->td_transfer_cache = td;
114802ac6454SAndrew Thompson 
114902ac6454SAndrew Thompson 	return (error ?
115002ac6454SAndrew Thompson 	    USB_ERR_STALLED : USB_ERR_NORMAL_COMPLETION);
115102ac6454SAndrew Thompson }
115202ac6454SAndrew Thompson 
115302ac6454SAndrew Thompson static void
1154760bc48eSAndrew Thompson uss820dci_standard_done(struct usb_xfer *xfer)
115502ac6454SAndrew Thompson {
1156e0a69b51SAndrew Thompson 	usb_error_t err = 0;
115702ac6454SAndrew Thompson 
1158ae60fdfbSAndrew Thompson 	DPRINTFN(13, "xfer=%p endpoint=%p transfer done\n",
1159ae60fdfbSAndrew Thompson 	    xfer, xfer->endpoint);
116002ac6454SAndrew Thompson 
116102ac6454SAndrew Thompson 	/* reset scanner */
116202ac6454SAndrew Thompson 
116302ac6454SAndrew Thompson 	xfer->td_transfer_cache = xfer->td_transfer_first;
116402ac6454SAndrew Thompson 
116502ac6454SAndrew Thompson 	if (xfer->flags_int.control_xfr) {
116602ac6454SAndrew Thompson 
116702ac6454SAndrew Thompson 		if (xfer->flags_int.control_hdr) {
116802ac6454SAndrew Thompson 
116902ac6454SAndrew Thompson 			err = uss820dci_standard_done_sub(xfer);
117002ac6454SAndrew Thompson 		}
117102ac6454SAndrew Thompson 		xfer->aframes = 1;
117202ac6454SAndrew Thompson 
117302ac6454SAndrew Thompson 		if (xfer->td_transfer_cache == NULL) {
117402ac6454SAndrew Thompson 			goto done;
117502ac6454SAndrew Thompson 		}
117602ac6454SAndrew Thompson 	}
117702ac6454SAndrew Thompson 	while (xfer->aframes != xfer->nframes) {
117802ac6454SAndrew Thompson 
117902ac6454SAndrew Thompson 		err = uss820dci_standard_done_sub(xfer);
118002ac6454SAndrew Thompson 		xfer->aframes++;
118102ac6454SAndrew Thompson 
118202ac6454SAndrew Thompson 		if (xfer->td_transfer_cache == NULL) {
118302ac6454SAndrew Thompson 			goto done;
118402ac6454SAndrew Thompson 		}
118502ac6454SAndrew Thompson 	}
118602ac6454SAndrew Thompson 
118702ac6454SAndrew Thompson 	if (xfer->flags_int.control_xfr &&
118802ac6454SAndrew Thompson 	    !xfer->flags_int.control_act) {
118902ac6454SAndrew Thompson 
119002ac6454SAndrew Thompson 		err = uss820dci_standard_done_sub(xfer);
119102ac6454SAndrew Thompson 	}
119202ac6454SAndrew Thompson done:
119302ac6454SAndrew Thompson 	uss820dci_device_done(xfer, err);
119402ac6454SAndrew Thompson }
119502ac6454SAndrew Thompson 
119602ac6454SAndrew Thompson /*------------------------------------------------------------------------*
119702ac6454SAndrew Thompson  *	uss820dci_device_done
119802ac6454SAndrew Thompson  *
119902ac6454SAndrew Thompson  * NOTE: this function can be called more than one time on the
120002ac6454SAndrew Thompson  * same USB transfer!
120102ac6454SAndrew Thompson  *------------------------------------------------------------------------*/
120202ac6454SAndrew Thompson static void
1203e0a69b51SAndrew Thompson uss820dci_device_done(struct usb_xfer *xfer, usb_error_t error)
120402ac6454SAndrew Thompson {
120502ac6454SAndrew Thompson 	USB_BUS_LOCK_ASSERT(xfer->xroot->bus, MA_OWNED);
120602ac6454SAndrew Thompson 
1207ae60fdfbSAndrew Thompson 	DPRINTFN(2, "xfer=%p, endpoint=%p, error=%d\n",
1208ae60fdfbSAndrew Thompson 	    xfer, xfer->endpoint, error);
120902ac6454SAndrew Thompson 
1210f29a0724SAndrew Thompson 	if (xfer->flags_int.usb_mode == USB_MODE_DEVICE) {
121102ac6454SAndrew Thompson 		uss820dci_intr_set(xfer, 0);
121202ac6454SAndrew Thompson 	}
121302ac6454SAndrew Thompson 	/* dequeue transfer and start next transfer */
1214a593f6b8SAndrew Thompson 	usbd_transfer_done(xfer, error);
121502ac6454SAndrew Thompson }
121602ac6454SAndrew Thompson 
121702ac6454SAndrew Thompson static void
1218a5cf1aaaSHans Petter Selasky uss820dci_xfer_stall(struct usb_xfer *xfer)
1219a5cf1aaaSHans Petter Selasky {
1220a5cf1aaaSHans Petter Selasky 	uss820dci_device_done(xfer, USB_ERR_STALLED);
1221a5cf1aaaSHans Petter Selasky }
1222a5cf1aaaSHans Petter Selasky 
1223a5cf1aaaSHans Petter Selasky static void
1224a5cf1aaaSHans Petter Selasky uss820dci_set_stall(struct usb_device *udev,
122529bd7d7eSAndrew Thompson     struct usb_endpoint *ep, uint8_t *did_stall)
122602ac6454SAndrew Thompson {
122702ac6454SAndrew Thompson 	struct uss820dci_softc *sc;
122802ac6454SAndrew Thompson 	uint8_t ep_no;
122902ac6454SAndrew Thompson 	uint8_t ep_type;
123002ac6454SAndrew Thompson 	uint8_t ep_dir;
123102ac6454SAndrew Thompson 	uint8_t temp;
123202ac6454SAndrew Thompson 
123302ac6454SAndrew Thompson 	USB_BUS_LOCK_ASSERT(udev->bus, MA_OWNED);
123402ac6454SAndrew Thompson 
1235ae60fdfbSAndrew Thompson 	DPRINTFN(5, "endpoint=%p\n", ep);
123602ac6454SAndrew Thompson 
123702ac6454SAndrew Thompson 	/* set FORCESTALL */
123802ac6454SAndrew Thompson 	sc = USS820_DCI_BUS2SC(udev->bus);
1239ae60fdfbSAndrew Thompson 	ep_no = (ep->edesc->bEndpointAddress & UE_ADDR);
1240ae60fdfbSAndrew Thompson 	ep_dir = (ep->edesc->bEndpointAddress & (UE_DIR_IN | UE_DIR_OUT));
1241ae60fdfbSAndrew Thompson 	ep_type = (ep->edesc->bmAttributes & UE_XFERTYPE);
124202ac6454SAndrew Thompson 
124302ac6454SAndrew Thompson 	if (ep_type == UE_CONTROL) {
124402ac6454SAndrew Thompson 		/* should not happen */
124502ac6454SAndrew Thompson 		return;
124602ac6454SAndrew Thompson 	}
124702ac6454SAndrew Thompson 	USS820_WRITE_1(sc, USS820_EPINDEX, ep_no);
124802ac6454SAndrew Thompson 
124902ac6454SAndrew Thompson 	if (ep_dir == UE_DIR_IN) {
125002ac6454SAndrew Thompson 		temp = USS820_EPCON_TXSTL;
125102ac6454SAndrew Thompson 	} else {
125202ac6454SAndrew Thompson 		temp = USS820_EPCON_RXSTL;
125302ac6454SAndrew Thompson 	}
125402ac6454SAndrew Thompson 	uss820dci_update_shared_1(sc, USS820_EPCON, 0xFF, temp);
125502ac6454SAndrew Thompson }
125602ac6454SAndrew Thompson 
125702ac6454SAndrew Thompson static void
125802ac6454SAndrew Thompson uss820dci_clear_stall_sub(struct uss820dci_softc *sc,
125902ac6454SAndrew Thompson     uint8_t ep_no, uint8_t ep_type, uint8_t ep_dir)
126002ac6454SAndrew Thompson {
126102ac6454SAndrew Thompson 	uint8_t temp;
126202ac6454SAndrew Thompson 
126302ac6454SAndrew Thompson 	if (ep_type == UE_CONTROL) {
126402ac6454SAndrew Thompson 		/* clearing stall is not needed */
126502ac6454SAndrew Thompson 		return;
126602ac6454SAndrew Thompson 	}
126702ac6454SAndrew Thompson 	/* select endpoint index */
126802ac6454SAndrew Thompson 	USS820_WRITE_1(sc, USS820_EPINDEX, ep_no);
126902ac6454SAndrew Thompson 
127002ac6454SAndrew Thompson 	/* clear stall and disable I/O transfers */
127102ac6454SAndrew Thompson 	if (ep_dir == UE_DIR_IN) {
127202ac6454SAndrew Thompson 		temp = 0xFF ^ (USS820_EPCON_TXOE |
127302ac6454SAndrew Thompson 		    USS820_EPCON_TXSTL);
127402ac6454SAndrew Thompson 	} else {
127502ac6454SAndrew Thompson 		temp = 0xFF ^ (USS820_EPCON_RXIE |
127602ac6454SAndrew Thompson 		    USS820_EPCON_RXSTL);
127702ac6454SAndrew Thompson 	}
127802ac6454SAndrew Thompson 	uss820dci_update_shared_1(sc, USS820_EPCON, temp, 0);
127902ac6454SAndrew Thompson 
128002ac6454SAndrew Thompson 	if (ep_dir == UE_DIR_IN) {
128102ac6454SAndrew Thompson 		/* reset data toggle */
128202ac6454SAndrew Thompson 		USS820_WRITE_1(sc, USS820_TXSTAT,
128302ac6454SAndrew Thompson 		    USS820_TXSTAT_TXSOVW);
128402ac6454SAndrew Thompson 
128502ac6454SAndrew Thompson 		/* reset FIFO */
128602ac6454SAndrew Thompson 		temp = USS820_READ_1(sc, USS820_TXCON);
128702ac6454SAndrew Thompson 		temp |= USS820_TXCON_TXCLR;
128802ac6454SAndrew Thompson 		USS820_WRITE_1(sc, USS820_TXCON, temp);
128902ac6454SAndrew Thompson 		temp &= ~USS820_TXCON_TXCLR;
129002ac6454SAndrew Thompson 		USS820_WRITE_1(sc, USS820_TXCON, temp);
129102ac6454SAndrew Thompson 	} else {
129202ac6454SAndrew Thompson 
129302ac6454SAndrew Thompson 		/* reset data toggle */
129402ac6454SAndrew Thompson 		uss820dci_update_shared_1(sc, USS820_RXSTAT,
129502ac6454SAndrew Thompson 		    0, USS820_RXSTAT_RXSOVW);
129602ac6454SAndrew Thompson 
129702ac6454SAndrew Thompson 		/* reset FIFO */
129802ac6454SAndrew Thompson 		temp = USS820_READ_1(sc, USS820_RXCON);
129902ac6454SAndrew Thompson 		temp |= USS820_RXCON_RXCLR;
130002ac6454SAndrew Thompson 		temp &= ~USS820_RXCON_RXFFRC;
130102ac6454SAndrew Thompson 		USS820_WRITE_1(sc, USS820_RXCON, temp);
130202ac6454SAndrew Thompson 		temp &= ~USS820_RXCON_RXCLR;
130302ac6454SAndrew Thompson 		USS820_WRITE_1(sc, USS820_RXCON, temp);
130402ac6454SAndrew Thompson 	}
130502ac6454SAndrew Thompson }
130602ac6454SAndrew Thompson 
130702ac6454SAndrew Thompson static void
1308ae60fdfbSAndrew Thompson uss820dci_clear_stall(struct usb_device *udev, struct usb_endpoint *ep)
130902ac6454SAndrew Thompson {
131002ac6454SAndrew Thompson 	struct uss820dci_softc *sc;
1311760bc48eSAndrew Thompson 	struct usb_endpoint_descriptor *ed;
131202ac6454SAndrew Thompson 
131302ac6454SAndrew Thompson 	USB_BUS_LOCK_ASSERT(udev->bus, MA_OWNED);
131402ac6454SAndrew Thompson 
1315ae60fdfbSAndrew Thompson 	DPRINTFN(5, "endpoint=%p\n", ep);
131602ac6454SAndrew Thompson 
131702ac6454SAndrew Thompson 	/* check mode */
1318f29a0724SAndrew Thompson 	if (udev->flags.usb_mode != USB_MODE_DEVICE) {
131902ac6454SAndrew Thompson 		/* not supported */
132002ac6454SAndrew Thompson 		return;
132102ac6454SAndrew Thompson 	}
132202ac6454SAndrew Thompson 	/* get softc */
132302ac6454SAndrew Thompson 	sc = USS820_DCI_BUS2SC(udev->bus);
132402ac6454SAndrew Thompson 
132502ac6454SAndrew Thompson 	/* get endpoint descriptor */
1326ae60fdfbSAndrew Thompson 	ed = ep->edesc;
132702ac6454SAndrew Thompson 
132802ac6454SAndrew Thompson 	/* reset endpoint */
132902ac6454SAndrew Thompson 	uss820dci_clear_stall_sub(sc,
133002ac6454SAndrew Thompson 	    (ed->bEndpointAddress & UE_ADDR),
133102ac6454SAndrew Thompson 	    (ed->bmAttributes & UE_XFERTYPE),
133202ac6454SAndrew Thompson 	    (ed->bEndpointAddress & (UE_DIR_IN | UE_DIR_OUT)));
133302ac6454SAndrew Thompson }
133402ac6454SAndrew Thompson 
1335e0a69b51SAndrew Thompson usb_error_t
133602ac6454SAndrew Thompson uss820dci_init(struct uss820dci_softc *sc)
133702ac6454SAndrew Thompson {
1338760bc48eSAndrew Thompson 	const struct usb_hw_ep_profile *pf;
133902ac6454SAndrew Thompson 	uint8_t n;
134002ac6454SAndrew Thompson 	uint8_t temp;
134102ac6454SAndrew Thompson 
134202ac6454SAndrew Thompson 	DPRINTF("start\n");
134302ac6454SAndrew Thompson 
134402ac6454SAndrew Thompson 	/* set up the bus structure */
134502ac6454SAndrew Thompson 	sc->sc_bus.usbrev = USB_REV_1_1;
134602ac6454SAndrew Thompson 	sc->sc_bus.methods = &uss820dci_bus_methods;
134702ac6454SAndrew Thompson 
134802ac6454SAndrew Thompson 	USB_BUS_LOCK(&sc->sc_bus);
134902ac6454SAndrew Thompson 
135002ac6454SAndrew Thompson 	/* we always have VBUS */
135102ac6454SAndrew Thompson 	sc->sc_flags.status_vbus = 1;
135202ac6454SAndrew Thompson 
135302ac6454SAndrew Thompson 	/* reset the chip */
135402ac6454SAndrew Thompson 	USS820_WRITE_1(sc, USS820_SCR, USS820_SCR_SRESET);
135502ac6454SAndrew Thompson 	DELAY(100);
135602ac6454SAndrew Thompson 	USS820_WRITE_1(sc, USS820_SCR, 0);
135702ac6454SAndrew Thompson 
135802ac6454SAndrew Thompson 	/* wait for reset to complete */
135902ac6454SAndrew Thompson 	for (n = 0;; n++) {
136002ac6454SAndrew Thompson 
136102ac6454SAndrew Thompson 		temp = USS820_READ_1(sc, USS820_MCSR);
136202ac6454SAndrew Thompson 
136302ac6454SAndrew Thompson 		if (temp & USS820_MCSR_INIT) {
136402ac6454SAndrew Thompson 			break;
136502ac6454SAndrew Thompson 		}
136602ac6454SAndrew Thompson 		if (n == 100) {
136702ac6454SAndrew Thompson 			USB_BUS_UNLOCK(&sc->sc_bus);
136802ac6454SAndrew Thompson 			return (USB_ERR_INVAL);
136902ac6454SAndrew Thompson 		}
137002ac6454SAndrew Thompson 		/* wait a little for things to stabilise */
137102ac6454SAndrew Thompson 		DELAY(100);
137202ac6454SAndrew Thompson 	}
137302ac6454SAndrew Thompson 
137402ac6454SAndrew Thompson 	/* do a pulldown */
137502ac6454SAndrew Thompson 	uss820dci_pull_down(sc);
137602ac6454SAndrew Thompson 
137702ac6454SAndrew Thompson 	/* wait 10ms for pulldown to stabilise */
1378a593f6b8SAndrew Thompson 	usb_pause_mtx(&sc->sc_bus.bus_mtx, hz / 100);
137902ac6454SAndrew Thompson 
138002ac6454SAndrew Thompson 	/* check hardware revision */
138102ac6454SAndrew Thompson 	temp = USS820_READ_1(sc, USS820_REV);
138202ac6454SAndrew Thompson 
138302ac6454SAndrew Thompson 	if (temp < 0x13) {
138402ac6454SAndrew Thompson 		USB_BUS_UNLOCK(&sc->sc_bus);
138502ac6454SAndrew Thompson 		return (USB_ERR_INVAL);
138602ac6454SAndrew Thompson 	}
138702ac6454SAndrew Thompson 	/* enable interrupts */
138802ac6454SAndrew Thompson 	USS820_WRITE_1(sc, USS820_SCR,
138902ac6454SAndrew Thompson 	    USS820_SCR_T_IRQ |
139002ac6454SAndrew Thompson 	    USS820_SCR_IE_RESET |
139102ac6454SAndrew Thompson 	/* USS820_SCR_RWUPE | */
139202ac6454SAndrew Thompson 	    USS820_SCR_IE_SUSP |
139302ac6454SAndrew Thompson 	    USS820_SCR_IRQPOL);
139402ac6454SAndrew Thompson 
139502ac6454SAndrew Thompson 	/* enable interrupts */
139602ac6454SAndrew Thompson 	USS820_WRITE_1(sc, USS820_SCRATCH,
139702ac6454SAndrew Thompson 	    USS820_SCRATCH_IE_RESUME);
139802ac6454SAndrew Thompson 
139902ac6454SAndrew Thompson 	/* enable features */
140002ac6454SAndrew Thompson 	USS820_WRITE_1(sc, USS820_MCSR,
140102ac6454SAndrew Thompson 	    USS820_MCSR_BDFEAT |
140202ac6454SAndrew Thompson 	    USS820_MCSR_FEAT);
140302ac6454SAndrew Thompson 
140402ac6454SAndrew Thompson 	sc->sc_flags.mcsr_feat = 1;
140502ac6454SAndrew Thompson 
140602ac6454SAndrew Thompson 	/* disable interrupts */
140702ac6454SAndrew Thompson 	USS820_WRITE_1(sc, USS820_SBIE, 0);
140802ac6454SAndrew Thompson 
140902ac6454SAndrew Thompson 	/* disable interrupts */
141002ac6454SAndrew Thompson 	USS820_WRITE_1(sc, USS820_SBIE1, 0);
141102ac6454SAndrew Thompson 
141202ac6454SAndrew Thompson 	/* disable all endpoints */
141302ac6454SAndrew Thompson 	for (n = 0; n != USS820_EP_MAX; n++) {
141402ac6454SAndrew Thompson 
141502ac6454SAndrew Thompson 		/* select endpoint */
141602ac6454SAndrew Thompson 		USS820_WRITE_1(sc, USS820_EPINDEX, n);
141702ac6454SAndrew Thompson 
141802ac6454SAndrew Thompson 		/* disable endpoint */
141902ac6454SAndrew Thompson 		uss820dci_update_shared_1(sc, USS820_EPCON, 0, 0);
142002ac6454SAndrew Thompson 	}
142102ac6454SAndrew Thompson 
142202ac6454SAndrew Thompson 	/*
142302ac6454SAndrew Thompson 	 * Initialise default values for some registers that cannot be
142402ac6454SAndrew Thompson 	 * changed during operation!
142502ac6454SAndrew Thompson 	 */
142602ac6454SAndrew Thompson 	for (n = 0; n != USS820_EP_MAX; n++) {
142702ac6454SAndrew Thompson 
142802ac6454SAndrew Thompson 		uss820dci_get_hw_ep_profile(NULL, &pf, n);
142902ac6454SAndrew Thompson 
143002ac6454SAndrew Thompson 		/* the maximum frame sizes should be the same */
143102ac6454SAndrew Thompson 		if (pf->max_in_frame_size != pf->max_out_frame_size) {
143202ac6454SAndrew Thompson 			DPRINTF("Max frame size mismatch %u != %u\n",
143302ac6454SAndrew Thompson 			    pf->max_in_frame_size, pf->max_out_frame_size);
143402ac6454SAndrew Thompson 		}
143502ac6454SAndrew Thompson 		if (pf->support_isochronous) {
143602ac6454SAndrew Thompson 			if (pf->max_in_frame_size <= 64) {
143702ac6454SAndrew Thompson 				temp = (USS820_TXCON_FFSZ_16_64 |
143802ac6454SAndrew Thompson 				    USS820_TXCON_TXISO |
143902ac6454SAndrew Thompson 				    USS820_TXCON_ATM);
144002ac6454SAndrew Thompson 			} else if (pf->max_in_frame_size <= 256) {
144102ac6454SAndrew Thompson 				temp = (USS820_TXCON_FFSZ_64_256 |
144202ac6454SAndrew Thompson 				    USS820_TXCON_TXISO |
144302ac6454SAndrew Thompson 				    USS820_TXCON_ATM);
144402ac6454SAndrew Thompson 			} else if (pf->max_in_frame_size <= 512) {
144502ac6454SAndrew Thompson 				temp = (USS820_TXCON_FFSZ_8_512 |
144602ac6454SAndrew Thompson 				    USS820_TXCON_TXISO |
144702ac6454SAndrew Thompson 				    USS820_TXCON_ATM);
144802ac6454SAndrew Thompson 			} else {	/* 1024 bytes */
144902ac6454SAndrew Thompson 				temp = (USS820_TXCON_FFSZ_32_1024 |
145002ac6454SAndrew Thompson 				    USS820_TXCON_TXISO |
145102ac6454SAndrew Thompson 				    USS820_TXCON_ATM);
145202ac6454SAndrew Thompson 			}
145302ac6454SAndrew Thompson 		} else {
145402ac6454SAndrew Thompson 			if ((pf->max_in_frame_size <= 8) &&
145502ac6454SAndrew Thompson 			    (sc->sc_flags.mcsr_feat)) {
145602ac6454SAndrew Thompson 				temp = (USS820_TXCON_FFSZ_8_512 |
145702ac6454SAndrew Thompson 				    USS820_TXCON_ATM);
145802ac6454SAndrew Thompson 			} else if (pf->max_in_frame_size <= 16) {
145902ac6454SAndrew Thompson 				temp = (USS820_TXCON_FFSZ_16_64 |
146002ac6454SAndrew Thompson 				    USS820_TXCON_ATM);
146102ac6454SAndrew Thompson 			} else if ((pf->max_in_frame_size <= 32) &&
146202ac6454SAndrew Thompson 			    (sc->sc_flags.mcsr_feat)) {
146302ac6454SAndrew Thompson 				temp = (USS820_TXCON_FFSZ_32_1024 |
146402ac6454SAndrew Thompson 				    USS820_TXCON_ATM);
146502ac6454SAndrew Thompson 			} else {	/* 64 bytes */
146602ac6454SAndrew Thompson 				temp = (USS820_TXCON_FFSZ_64_256 |
146702ac6454SAndrew Thompson 				    USS820_TXCON_ATM);
146802ac6454SAndrew Thompson 			}
146902ac6454SAndrew Thompson 		}
147002ac6454SAndrew Thompson 
147102ac6454SAndrew Thompson 		/* need to configure the chip early */
147202ac6454SAndrew Thompson 
147302ac6454SAndrew Thompson 		USS820_WRITE_1(sc, USS820_EPINDEX, n);
147402ac6454SAndrew Thompson 		USS820_WRITE_1(sc, USS820_TXCON, temp);
147502ac6454SAndrew Thompson 		USS820_WRITE_1(sc, USS820_RXCON, temp);
147602ac6454SAndrew Thompson 
147702ac6454SAndrew Thompson 		if (pf->support_control) {
147802ac6454SAndrew Thompson 			temp = USS820_EPCON_CTLEP |
147902ac6454SAndrew Thompson 			    USS820_EPCON_RXSPM |
148002ac6454SAndrew Thompson 			    USS820_EPCON_RXIE |
148102ac6454SAndrew Thompson 			    USS820_EPCON_RXEPEN |
148202ac6454SAndrew Thompson 			    USS820_EPCON_TXOE |
148302ac6454SAndrew Thompson 			    USS820_EPCON_TXEPEN;
148402ac6454SAndrew Thompson 		} else {
148502ac6454SAndrew Thompson 			temp = USS820_EPCON_RXEPEN | USS820_EPCON_TXEPEN;
148602ac6454SAndrew Thompson 		}
148702ac6454SAndrew Thompson 
148802ac6454SAndrew Thompson 		uss820dci_update_shared_1(sc, USS820_EPCON, 0xFF, temp);
148902ac6454SAndrew Thompson 	}
149002ac6454SAndrew Thompson 
149102ac6454SAndrew Thompson 	USB_BUS_UNLOCK(&sc->sc_bus);
149202ac6454SAndrew Thompson 
149302ac6454SAndrew Thompson 	/* catch any lost interrupts */
149402ac6454SAndrew Thompson 
149502ac6454SAndrew Thompson 	uss820dci_do_poll(&sc->sc_bus);
149602ac6454SAndrew Thompson 
149702ac6454SAndrew Thompson 	return (0);			/* success */
149802ac6454SAndrew Thompson }
149902ac6454SAndrew Thompson 
150002ac6454SAndrew Thompson void
150102ac6454SAndrew Thompson uss820dci_uninit(struct uss820dci_softc *sc)
150202ac6454SAndrew Thompson {
150302ac6454SAndrew Thompson 	uint8_t temp;
150402ac6454SAndrew Thompson 
150502ac6454SAndrew Thompson 	USB_BUS_LOCK(&sc->sc_bus);
150602ac6454SAndrew Thompson 
150702ac6454SAndrew Thompson 	/* disable all interrupts */
150802ac6454SAndrew Thompson 	temp = USS820_READ_1(sc, USS820_SCR);
150902ac6454SAndrew Thompson 	temp &= ~USS820_SCR_T_IRQ;
151002ac6454SAndrew Thompson 	USS820_WRITE_1(sc, USS820_SCR, temp);
151102ac6454SAndrew Thompson 
151202ac6454SAndrew Thompson 	sc->sc_flags.port_powered = 0;
151302ac6454SAndrew Thompson 	sc->sc_flags.status_vbus = 0;
151402ac6454SAndrew Thompson 	sc->sc_flags.status_bus_reset = 0;
151502ac6454SAndrew Thompson 	sc->sc_flags.status_suspend = 0;
151602ac6454SAndrew Thompson 	sc->sc_flags.change_suspend = 0;
151702ac6454SAndrew Thompson 	sc->sc_flags.change_connect = 1;
151802ac6454SAndrew Thompson 
151902ac6454SAndrew Thompson 	uss820dci_pull_down(sc);
152002ac6454SAndrew Thompson 	USB_BUS_UNLOCK(&sc->sc_bus);
152102ac6454SAndrew Thompson }
152202ac6454SAndrew Thompson 
15232e141748SHans Petter Selasky static void
152402ac6454SAndrew Thompson uss820dci_suspend(struct uss820dci_softc *sc)
152502ac6454SAndrew Thompson {
15262e141748SHans Petter Selasky 	/* TODO */
152702ac6454SAndrew Thompson }
152802ac6454SAndrew Thompson 
15292e141748SHans Petter Selasky static void
153002ac6454SAndrew Thompson uss820dci_resume(struct uss820dci_softc *sc)
153102ac6454SAndrew Thompson {
15322e141748SHans Petter Selasky 	/* TODO */
153302ac6454SAndrew Thompson }
153402ac6454SAndrew Thompson 
153502ac6454SAndrew Thompson static void
1536760bc48eSAndrew Thompson uss820dci_do_poll(struct usb_bus *bus)
153702ac6454SAndrew Thompson {
153802ac6454SAndrew Thompson 	struct uss820dci_softc *sc = USS820_DCI_BUS2SC(bus);
153902ac6454SAndrew Thompson 
154002ac6454SAndrew Thompson 	USB_BUS_LOCK(&sc->sc_bus);
154102ac6454SAndrew Thompson 	uss820dci_interrupt_poll(sc);
154202ac6454SAndrew Thompson 	USB_BUS_UNLOCK(&sc->sc_bus);
154302ac6454SAndrew Thompson }
154402ac6454SAndrew Thompson 
154502ac6454SAndrew Thompson /*------------------------------------------------------------------------*
154602ac6454SAndrew Thompson  * at91dci bulk support
154702ac6454SAndrew Thompson  *------------------------------------------------------------------------*/
154802ac6454SAndrew Thompson static void
1549760bc48eSAndrew Thompson uss820dci_device_bulk_open(struct usb_xfer *xfer)
155002ac6454SAndrew Thompson {
155102ac6454SAndrew Thompson 	return;
155202ac6454SAndrew Thompson }
155302ac6454SAndrew Thompson 
155402ac6454SAndrew Thompson static void
1555760bc48eSAndrew Thompson uss820dci_device_bulk_close(struct usb_xfer *xfer)
155602ac6454SAndrew Thompson {
155702ac6454SAndrew Thompson 	uss820dci_device_done(xfer, USB_ERR_CANCELLED);
155802ac6454SAndrew Thompson }
155902ac6454SAndrew Thompson 
156002ac6454SAndrew Thompson static void
1561760bc48eSAndrew Thompson uss820dci_device_bulk_enter(struct usb_xfer *xfer)
156202ac6454SAndrew Thompson {
156302ac6454SAndrew Thompson 	return;
156402ac6454SAndrew Thompson }
156502ac6454SAndrew Thompson 
156602ac6454SAndrew Thompson static void
1567760bc48eSAndrew Thompson uss820dci_device_bulk_start(struct usb_xfer *xfer)
156802ac6454SAndrew Thompson {
156902ac6454SAndrew Thompson 	/* setup TDs */
157002ac6454SAndrew Thompson 	uss820dci_setup_standard_chain(xfer);
157102ac6454SAndrew Thompson 	uss820dci_start_standard_chain(xfer);
157202ac6454SAndrew Thompson }
157302ac6454SAndrew Thompson 
1574*e892b3feSHans Petter Selasky static const struct usb_pipe_methods uss820dci_device_bulk_methods =
157502ac6454SAndrew Thompson {
157602ac6454SAndrew Thompson 	.open = uss820dci_device_bulk_open,
157702ac6454SAndrew Thompson 	.close = uss820dci_device_bulk_close,
157802ac6454SAndrew Thompson 	.enter = uss820dci_device_bulk_enter,
157902ac6454SAndrew Thompson 	.start = uss820dci_device_bulk_start,
158002ac6454SAndrew Thompson };
158102ac6454SAndrew Thompson 
158202ac6454SAndrew Thompson /*------------------------------------------------------------------------*
158302ac6454SAndrew Thompson  * at91dci control support
158402ac6454SAndrew Thompson  *------------------------------------------------------------------------*/
158502ac6454SAndrew Thompson static void
1586760bc48eSAndrew Thompson uss820dci_device_ctrl_open(struct usb_xfer *xfer)
158702ac6454SAndrew Thompson {
158802ac6454SAndrew Thompson 	return;
158902ac6454SAndrew Thompson }
159002ac6454SAndrew Thompson 
159102ac6454SAndrew Thompson static void
1592760bc48eSAndrew Thompson uss820dci_device_ctrl_close(struct usb_xfer *xfer)
159302ac6454SAndrew Thompson {
159402ac6454SAndrew Thompson 	uss820dci_device_done(xfer, USB_ERR_CANCELLED);
159502ac6454SAndrew Thompson }
159602ac6454SAndrew Thompson 
159702ac6454SAndrew Thompson static void
1598760bc48eSAndrew Thompson uss820dci_device_ctrl_enter(struct usb_xfer *xfer)
159902ac6454SAndrew Thompson {
160002ac6454SAndrew Thompson 	return;
160102ac6454SAndrew Thompson }
160202ac6454SAndrew Thompson 
160302ac6454SAndrew Thompson static void
1604760bc48eSAndrew Thompson uss820dci_device_ctrl_start(struct usb_xfer *xfer)
160502ac6454SAndrew Thompson {
160602ac6454SAndrew Thompson 	/* setup TDs */
160702ac6454SAndrew Thompson 	uss820dci_setup_standard_chain(xfer);
160802ac6454SAndrew Thompson 	uss820dci_start_standard_chain(xfer);
160902ac6454SAndrew Thompson }
161002ac6454SAndrew Thompson 
1611*e892b3feSHans Petter Selasky static const struct usb_pipe_methods uss820dci_device_ctrl_methods =
161202ac6454SAndrew Thompson {
161302ac6454SAndrew Thompson 	.open = uss820dci_device_ctrl_open,
161402ac6454SAndrew Thompson 	.close = uss820dci_device_ctrl_close,
161502ac6454SAndrew Thompson 	.enter = uss820dci_device_ctrl_enter,
161602ac6454SAndrew Thompson 	.start = uss820dci_device_ctrl_start,
161702ac6454SAndrew Thompson };
161802ac6454SAndrew Thompson 
161902ac6454SAndrew Thompson /*------------------------------------------------------------------------*
162002ac6454SAndrew Thompson  * at91dci interrupt support
162102ac6454SAndrew Thompson  *------------------------------------------------------------------------*/
162202ac6454SAndrew Thompson static void
1623760bc48eSAndrew Thompson uss820dci_device_intr_open(struct usb_xfer *xfer)
162402ac6454SAndrew Thompson {
162502ac6454SAndrew Thompson 	return;
162602ac6454SAndrew Thompson }
162702ac6454SAndrew Thompson 
162802ac6454SAndrew Thompson static void
1629760bc48eSAndrew Thompson uss820dci_device_intr_close(struct usb_xfer *xfer)
163002ac6454SAndrew Thompson {
163102ac6454SAndrew Thompson 	uss820dci_device_done(xfer, USB_ERR_CANCELLED);
163202ac6454SAndrew Thompson }
163302ac6454SAndrew Thompson 
163402ac6454SAndrew Thompson static void
1635760bc48eSAndrew Thompson uss820dci_device_intr_enter(struct usb_xfer *xfer)
163602ac6454SAndrew Thompson {
163702ac6454SAndrew Thompson 	return;
163802ac6454SAndrew Thompson }
163902ac6454SAndrew Thompson 
164002ac6454SAndrew Thompson static void
1641760bc48eSAndrew Thompson uss820dci_device_intr_start(struct usb_xfer *xfer)
164202ac6454SAndrew Thompson {
164302ac6454SAndrew Thompson 	/* setup TDs */
164402ac6454SAndrew Thompson 	uss820dci_setup_standard_chain(xfer);
164502ac6454SAndrew Thompson 	uss820dci_start_standard_chain(xfer);
164602ac6454SAndrew Thompson }
164702ac6454SAndrew Thompson 
1648*e892b3feSHans Petter Selasky static const struct usb_pipe_methods uss820dci_device_intr_methods =
164902ac6454SAndrew Thompson {
165002ac6454SAndrew Thompson 	.open = uss820dci_device_intr_open,
165102ac6454SAndrew Thompson 	.close = uss820dci_device_intr_close,
165202ac6454SAndrew Thompson 	.enter = uss820dci_device_intr_enter,
165302ac6454SAndrew Thompson 	.start = uss820dci_device_intr_start,
165402ac6454SAndrew Thompson };
165502ac6454SAndrew Thompson 
165602ac6454SAndrew Thompson /*------------------------------------------------------------------------*
165702ac6454SAndrew Thompson  * at91dci full speed isochronous support
165802ac6454SAndrew Thompson  *------------------------------------------------------------------------*/
165902ac6454SAndrew Thompson static void
1660760bc48eSAndrew Thompson uss820dci_device_isoc_fs_open(struct usb_xfer *xfer)
166102ac6454SAndrew Thompson {
166202ac6454SAndrew Thompson 	return;
166302ac6454SAndrew Thompson }
166402ac6454SAndrew Thompson 
166502ac6454SAndrew Thompson static void
1666760bc48eSAndrew Thompson uss820dci_device_isoc_fs_close(struct usb_xfer *xfer)
166702ac6454SAndrew Thompson {
166802ac6454SAndrew Thompson 	uss820dci_device_done(xfer, USB_ERR_CANCELLED);
166902ac6454SAndrew Thompson }
167002ac6454SAndrew Thompson 
167102ac6454SAndrew Thompson static void
1672760bc48eSAndrew Thompson uss820dci_device_isoc_fs_enter(struct usb_xfer *xfer)
167302ac6454SAndrew Thompson {
167402ac6454SAndrew Thompson 	struct uss820dci_softc *sc = USS820_DCI_BUS2SC(xfer->xroot->bus);
167502ac6454SAndrew Thompson 	uint32_t temp;
167602ac6454SAndrew Thompson 	uint32_t nframes;
167702ac6454SAndrew Thompson 
167802ac6454SAndrew Thompson 	DPRINTFN(6, "xfer=%p next=%d nframes=%d\n",
1679ae60fdfbSAndrew Thompson 	    xfer, xfer->endpoint->isoc_next, xfer->nframes);
168002ac6454SAndrew Thompson 
168102ac6454SAndrew Thompson 	/* get the current frame index - we don't need the high bits */
168202ac6454SAndrew Thompson 
168302ac6454SAndrew Thompson 	nframes = USS820_READ_1(sc, USS820_SOFL);
168402ac6454SAndrew Thompson 
168502ac6454SAndrew Thompson 	/*
168602ac6454SAndrew Thompson 	 * check if the frame index is within the window where the
168702ac6454SAndrew Thompson 	 * frames will be inserted
168802ac6454SAndrew Thompson 	 */
1689ae60fdfbSAndrew Thompson 	temp = (nframes - xfer->endpoint->isoc_next) & USS820_SOFL_MASK;
169002ac6454SAndrew Thompson 
1691ae60fdfbSAndrew Thompson 	if ((xfer->endpoint->is_synced == 0) ||
169202ac6454SAndrew Thompson 	    (temp < xfer->nframes)) {
169302ac6454SAndrew Thompson 		/*
169402ac6454SAndrew Thompson 		 * If there is data underflow or the pipe queue is
169502ac6454SAndrew Thompson 		 * empty we schedule the transfer a few frames ahead
169602ac6454SAndrew Thompson 		 * of the current frame position. Else two isochronous
169702ac6454SAndrew Thompson 		 * transfers might overlap.
169802ac6454SAndrew Thompson 		 */
1699ae60fdfbSAndrew Thompson 		xfer->endpoint->isoc_next = (nframes + 3) & USS820_SOFL_MASK;
1700ae60fdfbSAndrew Thompson 		xfer->endpoint->is_synced = 1;
1701ae60fdfbSAndrew Thompson 		DPRINTFN(3, "start next=%d\n", xfer->endpoint->isoc_next);
170202ac6454SAndrew Thompson 	}
170302ac6454SAndrew Thompson 	/*
170402ac6454SAndrew Thompson 	 * compute how many milliseconds the insertion is ahead of the
170502ac6454SAndrew Thompson 	 * current frame position:
170602ac6454SAndrew Thompson 	 */
1707ae60fdfbSAndrew Thompson 	temp = (xfer->endpoint->isoc_next - nframes) & USS820_SOFL_MASK;
170802ac6454SAndrew Thompson 
170902ac6454SAndrew Thompson 	/*
171002ac6454SAndrew Thompson 	 * pre-compute when the isochronous transfer will be finished:
171102ac6454SAndrew Thompson 	 */
171202ac6454SAndrew Thompson 	xfer->isoc_time_complete =
1713a593f6b8SAndrew Thompson 	    usb_isoc_time_expand(&sc->sc_bus, nframes) + temp +
171402ac6454SAndrew Thompson 	    xfer->nframes;
171502ac6454SAndrew Thompson 
171602ac6454SAndrew Thompson 	/* compute frame number for next insertion */
1717ae60fdfbSAndrew Thompson 	xfer->endpoint->isoc_next += xfer->nframes;
171802ac6454SAndrew Thompson 
171902ac6454SAndrew Thompson 	/* setup TDs */
172002ac6454SAndrew Thompson 	uss820dci_setup_standard_chain(xfer);
172102ac6454SAndrew Thompson }
172202ac6454SAndrew Thompson 
172302ac6454SAndrew Thompson static void
1724760bc48eSAndrew Thompson uss820dci_device_isoc_fs_start(struct usb_xfer *xfer)
172502ac6454SAndrew Thompson {
172602ac6454SAndrew Thompson 	/* start TD chain */
172702ac6454SAndrew Thompson 	uss820dci_start_standard_chain(xfer);
172802ac6454SAndrew Thompson }
172902ac6454SAndrew Thompson 
1730*e892b3feSHans Petter Selasky static const struct usb_pipe_methods uss820dci_device_isoc_fs_methods =
173102ac6454SAndrew Thompson {
173202ac6454SAndrew Thompson 	.open = uss820dci_device_isoc_fs_open,
173302ac6454SAndrew Thompson 	.close = uss820dci_device_isoc_fs_close,
173402ac6454SAndrew Thompson 	.enter = uss820dci_device_isoc_fs_enter,
173502ac6454SAndrew Thompson 	.start = uss820dci_device_isoc_fs_start,
173602ac6454SAndrew Thompson };
173702ac6454SAndrew Thompson 
173802ac6454SAndrew Thompson /*------------------------------------------------------------------------*
173902ac6454SAndrew Thompson  * at91dci root control support
174002ac6454SAndrew Thompson  *------------------------------------------------------------------------*
174139307315SAndrew Thompson  * Simulate a hardware HUB by handling all the necessary requests.
174202ac6454SAndrew Thompson  *------------------------------------------------------------------------*/
174302ac6454SAndrew Thompson 
1744760bc48eSAndrew Thompson static const struct usb_device_descriptor uss820dci_devd = {
1745760bc48eSAndrew Thompson 	.bLength = sizeof(struct usb_device_descriptor),
174602ac6454SAndrew Thompson 	.bDescriptorType = UDESC_DEVICE,
174702ac6454SAndrew Thompson 	.bcdUSB = {0x00, 0x02},
174802ac6454SAndrew Thompson 	.bDeviceClass = UDCLASS_HUB,
174902ac6454SAndrew Thompson 	.bDeviceSubClass = UDSUBCLASS_HUB,
17503b6f59eeSHans Petter Selasky 	.bDeviceProtocol = UDPROTO_FSHUB,
175102ac6454SAndrew Thompson 	.bMaxPacketSize = 64,
175202ac6454SAndrew Thompson 	.bcdDevice = {0x00, 0x01},
175302ac6454SAndrew Thompson 	.iManufacturer = 1,
175402ac6454SAndrew Thompson 	.iProduct = 2,
175502ac6454SAndrew Thompson 	.bNumConfigurations = 1,
175602ac6454SAndrew Thompson };
175702ac6454SAndrew Thompson 
1758760bc48eSAndrew Thompson static const struct usb_device_qualifier uss820dci_odevd = {
1759760bc48eSAndrew Thompson 	.bLength = sizeof(struct usb_device_qualifier),
176002ac6454SAndrew Thompson 	.bDescriptorType = UDESC_DEVICE_QUALIFIER,
176102ac6454SAndrew Thompson 	.bcdUSB = {0x00, 0x02},
176202ac6454SAndrew Thompson 	.bDeviceClass = UDCLASS_HUB,
176302ac6454SAndrew Thompson 	.bDeviceSubClass = UDSUBCLASS_HUB,
176402ac6454SAndrew Thompson 	.bDeviceProtocol = UDPROTO_FSHUB,
176502ac6454SAndrew Thompson 	.bMaxPacketSize0 = 0,
176602ac6454SAndrew Thompson 	.bNumConfigurations = 0,
176702ac6454SAndrew Thompson };
176802ac6454SAndrew Thompson 
176902ac6454SAndrew Thompson static const struct uss820dci_config_desc uss820dci_confd = {
177002ac6454SAndrew Thompson 	.confd = {
1771760bc48eSAndrew Thompson 		.bLength = sizeof(struct usb_config_descriptor),
177202ac6454SAndrew Thompson 		.bDescriptorType = UDESC_CONFIG,
177302ac6454SAndrew Thompson 		.wTotalLength[0] = sizeof(uss820dci_confd),
177402ac6454SAndrew Thompson 		.bNumInterface = 1,
177502ac6454SAndrew Thompson 		.bConfigurationValue = 1,
177602ac6454SAndrew Thompson 		.iConfiguration = 0,
177702ac6454SAndrew Thompson 		.bmAttributes = UC_SELF_POWERED,
177802ac6454SAndrew Thompson 		.bMaxPower = 0,
177902ac6454SAndrew Thompson 	},
178002ac6454SAndrew Thompson 	.ifcd = {
1781760bc48eSAndrew Thompson 		.bLength = sizeof(struct usb_interface_descriptor),
178202ac6454SAndrew Thompson 		.bDescriptorType = UDESC_INTERFACE,
178302ac6454SAndrew Thompson 		.bNumEndpoints = 1,
178402ac6454SAndrew Thompson 		.bInterfaceClass = UICLASS_HUB,
178502ac6454SAndrew Thompson 		.bInterfaceSubClass = UISUBCLASS_HUB,
17863b6f59eeSHans Petter Selasky 		.bInterfaceProtocol = 0,
178702ac6454SAndrew Thompson 	},
178802ac6454SAndrew Thompson 
178902ac6454SAndrew Thompson 	.endpd = {
1790760bc48eSAndrew Thompson 		.bLength = sizeof(struct usb_endpoint_descriptor),
179102ac6454SAndrew Thompson 		.bDescriptorType = UDESC_ENDPOINT,
179202ac6454SAndrew Thompson 		.bEndpointAddress = (UE_DIR_IN | USS820_DCI_INTR_ENDPT),
179302ac6454SAndrew Thompson 		.bmAttributes = UE_INTERRUPT,
179402ac6454SAndrew Thompson 		.wMaxPacketSize[0] = 8,
179502ac6454SAndrew Thompson 		.bInterval = 255,
179602ac6454SAndrew Thompson 	},
179702ac6454SAndrew Thompson };
179802ac6454SAndrew Thompson 
17996d917491SHans Petter Selasky #define	HSETW(ptr, val) ptr = { (uint8_t)(val), (uint8_t)((val) >> 8) }
18006d917491SHans Petter Selasky 
1801760bc48eSAndrew Thompson static const struct usb_hub_descriptor_min uss820dci_hubd = {
180202ac6454SAndrew Thompson 	.bDescLength = sizeof(uss820dci_hubd),
180302ac6454SAndrew Thompson 	.bDescriptorType = UDESC_HUB,
180402ac6454SAndrew Thompson 	.bNbrPorts = 1,
18056d917491SHans Petter Selasky 	HSETW(.wHubCharacteristics, (UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL)),
180602ac6454SAndrew Thompson 	.bPwrOn2PwrGood = 50,
180702ac6454SAndrew Thompson 	.bHubContrCurrent = 0,
180802ac6454SAndrew Thompson 	.DeviceRemovable = {0},		/* port is removable */
180902ac6454SAndrew Thompson };
181002ac6454SAndrew Thompson 
181102ac6454SAndrew Thompson #define	STRING_VENDOR \
1812b51875c9SHans Petter Selasky   "A\0G\0E\0R\0E"
181302ac6454SAndrew Thompson 
181402ac6454SAndrew Thompson #define	STRING_PRODUCT \
1815b51875c9SHans Petter Selasky   "D\0C\0I\0 \0R\0o\0o\0t\0 \0H\0U\0B"
181602ac6454SAndrew Thompson 
181702ac6454SAndrew Thompson USB_MAKE_STRING_DESC(STRING_VENDOR, uss820dci_vendor);
181802ac6454SAndrew Thompson USB_MAKE_STRING_DESC(STRING_PRODUCT, uss820dci_product);
181902ac6454SAndrew Thompson 
1820e0a69b51SAndrew Thompson static usb_error_t
1821760bc48eSAndrew Thompson uss820dci_roothub_exec(struct usb_device *udev,
1822760bc48eSAndrew Thompson     struct usb_device_request *req, const void **pptr, uint16_t *plength)
182302ac6454SAndrew Thompson {
1824459d369eSAndrew Thompson 	struct uss820dci_softc *sc = USS820_DCI_BUS2SC(udev->bus);
1825459d369eSAndrew Thompson 	const void *ptr;
1826459d369eSAndrew Thompson 	uint16_t len;
182702ac6454SAndrew Thompson 	uint16_t value;
182802ac6454SAndrew Thompson 	uint16_t index;
1829e0a69b51SAndrew Thompson 	usb_error_t err;
183002ac6454SAndrew Thompson 
183102ac6454SAndrew Thompson 	USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED);
183202ac6454SAndrew Thompson 
183302ac6454SAndrew Thompson 	/* buffer reset */
1834459d369eSAndrew Thompson 	ptr = (const void *)&sc->sc_hub_temp;
1835459d369eSAndrew Thompson 	len = 0;
1836459d369eSAndrew Thompson 	err = 0;
183702ac6454SAndrew Thompson 
1838459d369eSAndrew Thompson 	value = UGETW(req->wValue);
1839459d369eSAndrew Thompson 	index = UGETW(req->wIndex);
184002ac6454SAndrew Thompson 
184102ac6454SAndrew Thompson 	/* demultiplex the control request */
184202ac6454SAndrew Thompson 
1843459d369eSAndrew Thompson 	switch (req->bmRequestType) {
184402ac6454SAndrew Thompson 	case UT_READ_DEVICE:
1845459d369eSAndrew Thompson 		switch (req->bRequest) {
184602ac6454SAndrew Thompson 		case UR_GET_DESCRIPTOR:
184702ac6454SAndrew Thompson 			goto tr_handle_get_descriptor;
184802ac6454SAndrew Thompson 		case UR_GET_CONFIG:
184902ac6454SAndrew Thompson 			goto tr_handle_get_config;
185002ac6454SAndrew Thompson 		case UR_GET_STATUS:
185102ac6454SAndrew Thompson 			goto tr_handle_get_status;
185202ac6454SAndrew Thompson 		default:
185302ac6454SAndrew Thompson 			goto tr_stalled;
185402ac6454SAndrew Thompson 		}
185502ac6454SAndrew Thompson 		break;
185602ac6454SAndrew Thompson 
185702ac6454SAndrew Thompson 	case UT_WRITE_DEVICE:
1858459d369eSAndrew Thompson 		switch (req->bRequest) {
185902ac6454SAndrew Thompson 		case UR_SET_ADDRESS:
186002ac6454SAndrew Thompson 			goto tr_handle_set_address;
186102ac6454SAndrew Thompson 		case UR_SET_CONFIG:
186202ac6454SAndrew Thompson 			goto tr_handle_set_config;
186302ac6454SAndrew Thompson 		case UR_CLEAR_FEATURE:
186402ac6454SAndrew Thompson 			goto tr_valid;	/* nop */
186502ac6454SAndrew Thompson 		case UR_SET_DESCRIPTOR:
186602ac6454SAndrew Thompson 			goto tr_valid;	/* nop */
186702ac6454SAndrew Thompson 		case UR_SET_FEATURE:
186802ac6454SAndrew Thompson 		default:
186902ac6454SAndrew Thompson 			goto tr_stalled;
187002ac6454SAndrew Thompson 		}
187102ac6454SAndrew Thompson 		break;
187202ac6454SAndrew Thompson 
187302ac6454SAndrew Thompson 	case UT_WRITE_ENDPOINT:
1874459d369eSAndrew Thompson 		switch (req->bRequest) {
187502ac6454SAndrew Thompson 		case UR_CLEAR_FEATURE:
1876459d369eSAndrew Thompson 			switch (UGETW(req->wValue)) {
187702ac6454SAndrew Thompson 			case UF_ENDPOINT_HALT:
187802ac6454SAndrew Thompson 				goto tr_handle_clear_halt;
187902ac6454SAndrew Thompson 			case UF_DEVICE_REMOTE_WAKEUP:
188002ac6454SAndrew Thompson 				goto tr_handle_clear_wakeup;
188102ac6454SAndrew Thompson 			default:
188202ac6454SAndrew Thompson 				goto tr_stalled;
188302ac6454SAndrew Thompson 			}
188402ac6454SAndrew Thompson 			break;
188502ac6454SAndrew Thompson 		case UR_SET_FEATURE:
1886459d369eSAndrew Thompson 			switch (UGETW(req->wValue)) {
188702ac6454SAndrew Thompson 			case UF_ENDPOINT_HALT:
188802ac6454SAndrew Thompson 				goto tr_handle_set_halt;
188902ac6454SAndrew Thompson 			case UF_DEVICE_REMOTE_WAKEUP:
189002ac6454SAndrew Thompson 				goto tr_handle_set_wakeup;
189102ac6454SAndrew Thompson 			default:
189202ac6454SAndrew Thompson 				goto tr_stalled;
189302ac6454SAndrew Thompson 			}
189402ac6454SAndrew Thompson 			break;
189502ac6454SAndrew Thompson 		case UR_SYNCH_FRAME:
189602ac6454SAndrew Thompson 			goto tr_valid;	/* nop */
189702ac6454SAndrew Thompson 		default:
189802ac6454SAndrew Thompson 			goto tr_stalled;
189902ac6454SAndrew Thompson 		}
190002ac6454SAndrew Thompson 		break;
190102ac6454SAndrew Thompson 
190202ac6454SAndrew Thompson 	case UT_READ_ENDPOINT:
1903459d369eSAndrew Thompson 		switch (req->bRequest) {
190402ac6454SAndrew Thompson 		case UR_GET_STATUS:
190502ac6454SAndrew Thompson 			goto tr_handle_get_ep_status;
190602ac6454SAndrew Thompson 		default:
190702ac6454SAndrew Thompson 			goto tr_stalled;
190802ac6454SAndrew Thompson 		}
190902ac6454SAndrew Thompson 		break;
191002ac6454SAndrew Thompson 
191102ac6454SAndrew Thompson 	case UT_WRITE_INTERFACE:
1912459d369eSAndrew Thompson 		switch (req->bRequest) {
191302ac6454SAndrew Thompson 		case UR_SET_INTERFACE:
191402ac6454SAndrew Thompson 			goto tr_handle_set_interface;
191502ac6454SAndrew Thompson 		case UR_CLEAR_FEATURE:
191602ac6454SAndrew Thompson 			goto tr_valid;	/* nop */
191702ac6454SAndrew Thompson 		case UR_SET_FEATURE:
191802ac6454SAndrew Thompson 		default:
191902ac6454SAndrew Thompson 			goto tr_stalled;
192002ac6454SAndrew Thompson 		}
192102ac6454SAndrew Thompson 		break;
192202ac6454SAndrew Thompson 
192302ac6454SAndrew Thompson 	case UT_READ_INTERFACE:
1924459d369eSAndrew Thompson 		switch (req->bRequest) {
192502ac6454SAndrew Thompson 		case UR_GET_INTERFACE:
192602ac6454SAndrew Thompson 			goto tr_handle_get_interface;
192702ac6454SAndrew Thompson 		case UR_GET_STATUS:
192802ac6454SAndrew Thompson 			goto tr_handle_get_iface_status;
192902ac6454SAndrew Thompson 		default:
193002ac6454SAndrew Thompson 			goto tr_stalled;
193102ac6454SAndrew Thompson 		}
193202ac6454SAndrew Thompson 		break;
193302ac6454SAndrew Thompson 
193402ac6454SAndrew Thompson 	case UT_WRITE_CLASS_INTERFACE:
193502ac6454SAndrew Thompson 	case UT_WRITE_VENDOR_INTERFACE:
193602ac6454SAndrew Thompson 		/* XXX forward */
193702ac6454SAndrew Thompson 		break;
193802ac6454SAndrew Thompson 
193902ac6454SAndrew Thompson 	case UT_READ_CLASS_INTERFACE:
194002ac6454SAndrew Thompson 	case UT_READ_VENDOR_INTERFACE:
194102ac6454SAndrew Thompson 		/* XXX forward */
194202ac6454SAndrew Thompson 		break;
194302ac6454SAndrew Thompson 
194402ac6454SAndrew Thompson 	case UT_WRITE_CLASS_DEVICE:
1945459d369eSAndrew Thompson 		switch (req->bRequest) {
194602ac6454SAndrew Thompson 		case UR_CLEAR_FEATURE:
194702ac6454SAndrew Thompson 			goto tr_valid;
194802ac6454SAndrew Thompson 		case UR_SET_DESCRIPTOR:
194902ac6454SAndrew Thompson 		case UR_SET_FEATURE:
195002ac6454SAndrew Thompson 			break;
195102ac6454SAndrew Thompson 		default:
195202ac6454SAndrew Thompson 			goto tr_stalled;
195302ac6454SAndrew Thompson 		}
195402ac6454SAndrew Thompson 		break;
195502ac6454SAndrew Thompson 
195602ac6454SAndrew Thompson 	case UT_WRITE_CLASS_OTHER:
1957459d369eSAndrew Thompson 		switch (req->bRequest) {
195802ac6454SAndrew Thompson 		case UR_CLEAR_FEATURE:
195902ac6454SAndrew Thompson 			goto tr_handle_clear_port_feature;
196002ac6454SAndrew Thompson 		case UR_SET_FEATURE:
196102ac6454SAndrew Thompson 			goto tr_handle_set_port_feature;
196202ac6454SAndrew Thompson 		case UR_CLEAR_TT_BUFFER:
196302ac6454SAndrew Thompson 		case UR_RESET_TT:
196402ac6454SAndrew Thompson 		case UR_STOP_TT:
196502ac6454SAndrew Thompson 			goto tr_valid;
196602ac6454SAndrew Thompson 
196702ac6454SAndrew Thompson 		default:
196802ac6454SAndrew Thompson 			goto tr_stalled;
196902ac6454SAndrew Thompson 		}
197002ac6454SAndrew Thompson 		break;
197102ac6454SAndrew Thompson 
197202ac6454SAndrew Thompson 	case UT_READ_CLASS_OTHER:
1973459d369eSAndrew Thompson 		switch (req->bRequest) {
197402ac6454SAndrew Thompson 		case UR_GET_TT_STATE:
197502ac6454SAndrew Thompson 			goto tr_handle_get_tt_state;
197602ac6454SAndrew Thompson 		case UR_GET_STATUS:
197702ac6454SAndrew Thompson 			goto tr_handle_get_port_status;
197802ac6454SAndrew Thompson 		default:
197902ac6454SAndrew Thompson 			goto tr_stalled;
198002ac6454SAndrew Thompson 		}
198102ac6454SAndrew Thompson 		break;
198202ac6454SAndrew Thompson 
198302ac6454SAndrew Thompson 	case UT_READ_CLASS_DEVICE:
1984459d369eSAndrew Thompson 		switch (req->bRequest) {
198502ac6454SAndrew Thompson 		case UR_GET_DESCRIPTOR:
198602ac6454SAndrew Thompson 			goto tr_handle_get_class_descriptor;
198702ac6454SAndrew Thompson 		case UR_GET_STATUS:
198802ac6454SAndrew Thompson 			goto tr_handle_get_class_status;
198902ac6454SAndrew Thompson 
199002ac6454SAndrew Thompson 		default:
199102ac6454SAndrew Thompson 			goto tr_stalled;
199202ac6454SAndrew Thompson 		}
199302ac6454SAndrew Thompson 		break;
199402ac6454SAndrew Thompson 	default:
199502ac6454SAndrew Thompson 		goto tr_stalled;
199602ac6454SAndrew Thompson 	}
199702ac6454SAndrew Thompson 	goto tr_valid;
199802ac6454SAndrew Thompson 
199902ac6454SAndrew Thompson tr_handle_get_descriptor:
200002ac6454SAndrew Thompson 	switch (value >> 8) {
200102ac6454SAndrew Thompson 	case UDESC_DEVICE:
200202ac6454SAndrew Thompson 		if (value & 0xff) {
200302ac6454SAndrew Thompson 			goto tr_stalled;
200402ac6454SAndrew Thompson 		}
2005459d369eSAndrew Thompson 		len = sizeof(uss820dci_devd);
2006459d369eSAndrew Thompson 		ptr = (const void *)&uss820dci_devd;
200702ac6454SAndrew Thompson 		goto tr_valid;
200802ac6454SAndrew Thompson 	case UDESC_CONFIG:
200902ac6454SAndrew Thompson 		if (value & 0xff) {
201002ac6454SAndrew Thompson 			goto tr_stalled;
201102ac6454SAndrew Thompson 		}
2012459d369eSAndrew Thompson 		len = sizeof(uss820dci_confd);
2013459d369eSAndrew Thompson 		ptr = (const void *)&uss820dci_confd;
201402ac6454SAndrew Thompson 		goto tr_valid;
201502ac6454SAndrew Thompson 	case UDESC_STRING:
201602ac6454SAndrew Thompson 		switch (value & 0xff) {
201702ac6454SAndrew Thompson 		case 0:		/* Language table */
201823ab0871SHans Petter Selasky 			len = sizeof(usb_string_lang_en);
201923ab0871SHans Petter Selasky 			ptr = (const void *)&usb_string_lang_en;
202002ac6454SAndrew Thompson 			goto tr_valid;
202102ac6454SAndrew Thompson 
202202ac6454SAndrew Thompson 		case 1:		/* Vendor */
2023459d369eSAndrew Thompson 			len = sizeof(uss820dci_vendor);
2024459d369eSAndrew Thompson 			ptr = (const void *)&uss820dci_vendor;
202502ac6454SAndrew Thompson 			goto tr_valid;
202602ac6454SAndrew Thompson 
202702ac6454SAndrew Thompson 		case 2:		/* Product */
2028459d369eSAndrew Thompson 			len = sizeof(uss820dci_product);
2029459d369eSAndrew Thompson 			ptr = (const void *)&uss820dci_product;
203002ac6454SAndrew Thompson 			goto tr_valid;
203102ac6454SAndrew Thompson 		default:
203202ac6454SAndrew Thompson 			break;
203302ac6454SAndrew Thompson 		}
203402ac6454SAndrew Thompson 		break;
203502ac6454SAndrew Thompson 	default:
203602ac6454SAndrew Thompson 		goto tr_stalled;
203702ac6454SAndrew Thompson 	}
203802ac6454SAndrew Thompson 	goto tr_stalled;
203902ac6454SAndrew Thompson 
204002ac6454SAndrew Thompson tr_handle_get_config:
2041459d369eSAndrew Thompson 	len = 1;
204202ac6454SAndrew Thompson 	sc->sc_hub_temp.wValue[0] = sc->sc_conf;
204302ac6454SAndrew Thompson 	goto tr_valid;
204402ac6454SAndrew Thompson 
204502ac6454SAndrew Thompson tr_handle_get_status:
2046459d369eSAndrew Thompson 	len = 2;
204702ac6454SAndrew Thompson 	USETW(sc->sc_hub_temp.wValue, UDS_SELF_POWERED);
204802ac6454SAndrew Thompson 	goto tr_valid;
204902ac6454SAndrew Thompson 
205002ac6454SAndrew Thompson tr_handle_set_address:
205102ac6454SAndrew Thompson 	if (value & 0xFF00) {
205202ac6454SAndrew Thompson 		goto tr_stalled;
205302ac6454SAndrew Thompson 	}
205402ac6454SAndrew Thompson 	sc->sc_rt_addr = value;
205502ac6454SAndrew Thompson 	goto tr_valid;
205602ac6454SAndrew Thompson 
205702ac6454SAndrew Thompson tr_handle_set_config:
205802ac6454SAndrew Thompson 	if (value >= 2) {
205902ac6454SAndrew Thompson 		goto tr_stalled;
206002ac6454SAndrew Thompson 	}
206102ac6454SAndrew Thompson 	sc->sc_conf = value;
206202ac6454SAndrew Thompson 	goto tr_valid;
206302ac6454SAndrew Thompson 
206402ac6454SAndrew Thompson tr_handle_get_interface:
2065459d369eSAndrew Thompson 	len = 1;
206602ac6454SAndrew Thompson 	sc->sc_hub_temp.wValue[0] = 0;
206702ac6454SAndrew Thompson 	goto tr_valid;
206802ac6454SAndrew Thompson 
206902ac6454SAndrew Thompson tr_handle_get_tt_state:
207002ac6454SAndrew Thompson tr_handle_get_class_status:
207102ac6454SAndrew Thompson tr_handle_get_iface_status:
207202ac6454SAndrew Thompson tr_handle_get_ep_status:
2073459d369eSAndrew Thompson 	len = 2;
207402ac6454SAndrew Thompson 	USETW(sc->sc_hub_temp.wValue, 0);
207502ac6454SAndrew Thompson 	goto tr_valid;
207602ac6454SAndrew Thompson 
207702ac6454SAndrew Thompson tr_handle_set_halt:
207802ac6454SAndrew Thompson tr_handle_set_interface:
207902ac6454SAndrew Thompson tr_handle_set_wakeup:
208002ac6454SAndrew Thompson tr_handle_clear_wakeup:
208102ac6454SAndrew Thompson tr_handle_clear_halt:
208202ac6454SAndrew Thompson 	goto tr_valid;
208302ac6454SAndrew Thompson 
208402ac6454SAndrew Thompson tr_handle_clear_port_feature:
208502ac6454SAndrew Thompson 	if (index != 1) {
208602ac6454SAndrew Thompson 		goto tr_stalled;
208702ac6454SAndrew Thompson 	}
208802ac6454SAndrew Thompson 	DPRINTFN(9, "UR_CLEAR_PORT_FEATURE on port %d\n", index);
208902ac6454SAndrew Thompson 
209002ac6454SAndrew Thompson 	switch (value) {
209102ac6454SAndrew Thompson 	case UHF_PORT_SUSPEND:
209202ac6454SAndrew Thompson 		uss820dci_wakeup_peer(sc);
209302ac6454SAndrew Thompson 		break;
209402ac6454SAndrew Thompson 
209502ac6454SAndrew Thompson 	case UHF_PORT_ENABLE:
209602ac6454SAndrew Thompson 		sc->sc_flags.port_enabled = 0;
209702ac6454SAndrew Thompson 		break;
209802ac6454SAndrew Thompson 
209902ac6454SAndrew Thompson 	case UHF_PORT_TEST:
210002ac6454SAndrew Thompson 	case UHF_PORT_INDICATOR:
210102ac6454SAndrew Thompson 	case UHF_C_PORT_ENABLE:
210202ac6454SAndrew Thompson 	case UHF_C_PORT_OVER_CURRENT:
210302ac6454SAndrew Thompson 	case UHF_C_PORT_RESET:
210402ac6454SAndrew Thompson 		/* nops */
210502ac6454SAndrew Thompson 		break;
210602ac6454SAndrew Thompson 	case UHF_PORT_POWER:
210702ac6454SAndrew Thompson 		sc->sc_flags.port_powered = 0;
210802ac6454SAndrew Thompson 		uss820dci_pull_down(sc);
210902ac6454SAndrew Thompson 		break;
211002ac6454SAndrew Thompson 	case UHF_C_PORT_CONNECTION:
211102ac6454SAndrew Thompson 		sc->sc_flags.change_connect = 0;
211202ac6454SAndrew Thompson 		break;
211302ac6454SAndrew Thompson 	case UHF_C_PORT_SUSPEND:
211402ac6454SAndrew Thompson 		sc->sc_flags.change_suspend = 0;
211502ac6454SAndrew Thompson 		break;
211602ac6454SAndrew Thompson 	default:
2117459d369eSAndrew Thompson 		err = USB_ERR_IOERROR;
211802ac6454SAndrew Thompson 		goto done;
211902ac6454SAndrew Thompson 	}
212002ac6454SAndrew Thompson 	goto tr_valid;
212102ac6454SAndrew Thompson 
212202ac6454SAndrew Thompson tr_handle_set_port_feature:
212302ac6454SAndrew Thompson 	if (index != 1) {
212402ac6454SAndrew Thompson 		goto tr_stalled;
212502ac6454SAndrew Thompson 	}
212602ac6454SAndrew Thompson 	DPRINTFN(9, "UR_SET_PORT_FEATURE\n");
212702ac6454SAndrew Thompson 
212802ac6454SAndrew Thompson 	switch (value) {
212902ac6454SAndrew Thompson 	case UHF_PORT_ENABLE:
213002ac6454SAndrew Thompson 		sc->sc_flags.port_enabled = 1;
213102ac6454SAndrew Thompson 		break;
213202ac6454SAndrew Thompson 	case UHF_PORT_SUSPEND:
213302ac6454SAndrew Thompson 	case UHF_PORT_RESET:
213402ac6454SAndrew Thompson 	case UHF_PORT_TEST:
213502ac6454SAndrew Thompson 	case UHF_PORT_INDICATOR:
213602ac6454SAndrew Thompson 		/* nops */
213702ac6454SAndrew Thompson 		break;
213802ac6454SAndrew Thompson 	case UHF_PORT_POWER:
213902ac6454SAndrew Thompson 		sc->sc_flags.port_powered = 1;
214002ac6454SAndrew Thompson 		break;
214102ac6454SAndrew Thompson 	default:
2142459d369eSAndrew Thompson 		err = USB_ERR_IOERROR;
214302ac6454SAndrew Thompson 		goto done;
214402ac6454SAndrew Thompson 	}
214502ac6454SAndrew Thompson 	goto tr_valid;
214602ac6454SAndrew Thompson 
214702ac6454SAndrew Thompson tr_handle_get_port_status:
214802ac6454SAndrew Thompson 
214902ac6454SAndrew Thompson 	DPRINTFN(9, "UR_GET_PORT_STATUS\n");
215002ac6454SAndrew Thompson 
215102ac6454SAndrew Thompson 	if (index != 1) {
215202ac6454SAndrew Thompson 		goto tr_stalled;
215302ac6454SAndrew Thompson 	}
215402ac6454SAndrew Thompson 	if (sc->sc_flags.status_vbus) {
215502ac6454SAndrew Thompson 		uss820dci_pull_up(sc);
215602ac6454SAndrew Thompson 	} else {
215702ac6454SAndrew Thompson 		uss820dci_pull_down(sc);
215802ac6454SAndrew Thompson 	}
215902ac6454SAndrew Thompson 
216002ac6454SAndrew Thompson 	/* Select FULL-speed and Device Side Mode */
216102ac6454SAndrew Thompson 
216202ac6454SAndrew Thompson 	value = UPS_PORT_MODE_DEVICE;
216302ac6454SAndrew Thompson 
216402ac6454SAndrew Thompson 	if (sc->sc_flags.port_powered) {
216502ac6454SAndrew Thompson 		value |= UPS_PORT_POWER;
216602ac6454SAndrew Thompson 	}
216702ac6454SAndrew Thompson 	if (sc->sc_flags.port_enabled) {
216802ac6454SAndrew Thompson 		value |= UPS_PORT_ENABLED;
216902ac6454SAndrew Thompson 	}
217002ac6454SAndrew Thompson 	if (sc->sc_flags.status_vbus &&
217102ac6454SAndrew Thompson 	    sc->sc_flags.status_bus_reset) {
217202ac6454SAndrew Thompson 		value |= UPS_CURRENT_CONNECT_STATUS;
217302ac6454SAndrew Thompson 	}
217402ac6454SAndrew Thompson 	if (sc->sc_flags.status_suspend) {
217502ac6454SAndrew Thompson 		value |= UPS_SUSPEND;
217602ac6454SAndrew Thompson 	}
217702ac6454SAndrew Thompson 	USETW(sc->sc_hub_temp.ps.wPortStatus, value);
217802ac6454SAndrew Thompson 
217902ac6454SAndrew Thompson 	value = 0;
218002ac6454SAndrew Thompson 
218102ac6454SAndrew Thompson 	if (sc->sc_flags.change_connect) {
218202ac6454SAndrew Thompson 		value |= UPS_C_CONNECT_STATUS;
218302ac6454SAndrew Thompson 	}
218402ac6454SAndrew Thompson 	if (sc->sc_flags.change_suspend) {
218502ac6454SAndrew Thompson 		value |= UPS_C_SUSPEND;
218602ac6454SAndrew Thompson 	}
218702ac6454SAndrew Thompson 	USETW(sc->sc_hub_temp.ps.wPortChange, value);
2188459d369eSAndrew Thompson 	len = sizeof(sc->sc_hub_temp.ps);
218902ac6454SAndrew Thompson 	goto tr_valid;
219002ac6454SAndrew Thompson 
219102ac6454SAndrew Thompson tr_handle_get_class_descriptor:
219202ac6454SAndrew Thompson 	if (value & 0xFF) {
219302ac6454SAndrew Thompson 		goto tr_stalled;
219402ac6454SAndrew Thompson 	}
2195459d369eSAndrew Thompson 	ptr = (const void *)&uss820dci_hubd;
2196459d369eSAndrew Thompson 	len = sizeof(uss820dci_hubd);
219702ac6454SAndrew Thompson 	goto tr_valid;
219802ac6454SAndrew Thompson 
219902ac6454SAndrew Thompson tr_stalled:
2200459d369eSAndrew Thompson 	err = USB_ERR_STALLED;
220102ac6454SAndrew Thompson tr_valid:
220202ac6454SAndrew Thompson done:
2203459d369eSAndrew Thompson 	*plength = len;
2204459d369eSAndrew Thompson 	*pptr = ptr;
2205459d369eSAndrew Thompson 	return (err);
220602ac6454SAndrew Thompson }
220702ac6454SAndrew Thompson 
220802ac6454SAndrew Thompson static void
2209760bc48eSAndrew Thompson uss820dci_xfer_setup(struct usb_setup_params *parm)
221002ac6454SAndrew Thompson {
2211760bc48eSAndrew Thompson 	const struct usb_hw_ep_profile *pf;
221202ac6454SAndrew Thompson 	struct uss820dci_softc *sc;
2213760bc48eSAndrew Thompson 	struct usb_xfer *xfer;
221402ac6454SAndrew Thompson 	void *last_obj;
221502ac6454SAndrew Thompson 	uint32_t ntd;
221602ac6454SAndrew Thompson 	uint32_t n;
221702ac6454SAndrew Thompson 	uint8_t ep_no;
221802ac6454SAndrew Thompson 
221902ac6454SAndrew Thompson 	sc = USS820_DCI_BUS2SC(parm->udev->bus);
222002ac6454SAndrew Thompson 	xfer = parm->curr_xfer;
222102ac6454SAndrew Thompson 
222202ac6454SAndrew Thompson 	/*
222302ac6454SAndrew Thompson 	 * NOTE: This driver does not use any of the parameters that
222402ac6454SAndrew Thompson 	 * are computed from the following values. Just set some
222502ac6454SAndrew Thompson 	 * reasonable dummies:
222602ac6454SAndrew Thompson 	 */
222702ac6454SAndrew Thompson 	parm->hc_max_packet_size = 0x500;
222802ac6454SAndrew Thompson 	parm->hc_max_packet_count = 1;
222902ac6454SAndrew Thompson 	parm->hc_max_frame_size = 0x500;
223002ac6454SAndrew Thompson 
2231a593f6b8SAndrew Thompson 	usbd_transfer_setup_sub(parm);
223202ac6454SAndrew Thompson 
223302ac6454SAndrew Thompson 	/*
223402ac6454SAndrew Thompson 	 * compute maximum number of TDs
223502ac6454SAndrew Thompson 	 */
223602ac6454SAndrew Thompson 	if (parm->methods == &uss820dci_device_ctrl_methods) {
223702ac6454SAndrew Thompson 
223802ac6454SAndrew Thompson 		ntd = xfer->nframes + 1 /* STATUS */ + 1 /* SYNC */ ;
223902ac6454SAndrew Thompson 
224002ac6454SAndrew Thompson 	} else if (parm->methods == &uss820dci_device_bulk_methods) {
224102ac6454SAndrew Thompson 
224202ac6454SAndrew Thompson 		ntd = xfer->nframes + 1 /* SYNC */ ;
224302ac6454SAndrew Thompson 
224402ac6454SAndrew Thompson 	} else if (parm->methods == &uss820dci_device_intr_methods) {
224502ac6454SAndrew Thompson 
224602ac6454SAndrew Thompson 		ntd = xfer->nframes + 1 /* SYNC */ ;
224702ac6454SAndrew Thompson 
224802ac6454SAndrew Thompson 	} else if (parm->methods == &uss820dci_device_isoc_fs_methods) {
224902ac6454SAndrew Thompson 
225002ac6454SAndrew Thompson 		ntd = xfer->nframes + 1 /* SYNC */ ;
225102ac6454SAndrew Thompson 
225202ac6454SAndrew Thompson 	} else {
225302ac6454SAndrew Thompson 
225402ac6454SAndrew Thompson 		ntd = 0;
225502ac6454SAndrew Thompson 	}
225602ac6454SAndrew Thompson 
225702ac6454SAndrew Thompson 	/*
2258a593f6b8SAndrew Thompson 	 * check if "usbd_transfer_setup_sub" set an error
225902ac6454SAndrew Thompson 	 */
226002ac6454SAndrew Thompson 	if (parm->err) {
226102ac6454SAndrew Thompson 		return;
226202ac6454SAndrew Thompson 	}
226302ac6454SAndrew Thompson 	/*
226402ac6454SAndrew Thompson 	 * allocate transfer descriptors
226502ac6454SAndrew Thompson 	 */
226602ac6454SAndrew Thompson 	last_obj = NULL;
226702ac6454SAndrew Thompson 
226802ac6454SAndrew Thompson 	/*
226902ac6454SAndrew Thompson 	 * get profile stuff
227002ac6454SAndrew Thompson 	 */
227102ac6454SAndrew Thompson 	if (ntd) {
227202ac6454SAndrew Thompson 
2273ae60fdfbSAndrew Thompson 		ep_no = xfer->endpointno & UE_ADDR;
227402ac6454SAndrew Thompson 		uss820dci_get_hw_ep_profile(parm->udev, &pf, ep_no);
227502ac6454SAndrew Thompson 
227602ac6454SAndrew Thompson 		if (pf == NULL) {
227702ac6454SAndrew Thompson 			/* should not happen */
227802ac6454SAndrew Thompson 			parm->err = USB_ERR_INVAL;
227902ac6454SAndrew Thompson 			return;
228002ac6454SAndrew Thompson 		}
228102ac6454SAndrew Thompson 	} else {
228202ac6454SAndrew Thompson 		ep_no = 0;
228302ac6454SAndrew Thompson 		pf = NULL;
228402ac6454SAndrew Thompson 	}
228502ac6454SAndrew Thompson 
228602ac6454SAndrew Thompson 	/* align data */
228702ac6454SAndrew Thompson 	parm->size[0] += ((-parm->size[0]) & (USB_HOST_ALIGN - 1));
228802ac6454SAndrew Thompson 
228902ac6454SAndrew Thompson 	for (n = 0; n != ntd; n++) {
229002ac6454SAndrew Thompson 
229102ac6454SAndrew Thompson 		struct uss820dci_td *td;
229202ac6454SAndrew Thompson 
229302ac6454SAndrew Thompson 		if (parm->buf) {
229402ac6454SAndrew Thompson 
229502ac6454SAndrew Thompson 			td = USB_ADD_BYTES(parm->buf, parm->size[0]);
229602ac6454SAndrew Thompson 
229702ac6454SAndrew Thompson 			/* init TD */
229802ac6454SAndrew Thompson 			td->io_tag = sc->sc_io_tag;
229902ac6454SAndrew Thompson 			td->io_hdl = sc->sc_io_hdl;
230002ac6454SAndrew Thompson 			td->max_packet_size = xfer->max_packet_size;
230102ac6454SAndrew Thompson 			td->ep_index = ep_no;
230202ac6454SAndrew Thompson 			if (pf->support_multi_buffer &&
230302ac6454SAndrew Thompson 			    (parm->methods != &uss820dci_device_ctrl_methods)) {
230402ac6454SAndrew Thompson 				td->support_multi_buffer = 1;
230502ac6454SAndrew Thompson 			}
230602ac6454SAndrew Thompson 			td->obj_next = last_obj;
230702ac6454SAndrew Thompson 
230802ac6454SAndrew Thompson 			last_obj = td;
230902ac6454SAndrew Thompson 		}
231002ac6454SAndrew Thompson 		parm->size[0] += sizeof(*td);
231102ac6454SAndrew Thompson 	}
231202ac6454SAndrew Thompson 
231302ac6454SAndrew Thompson 	xfer->td_start[0] = last_obj;
231402ac6454SAndrew Thompson }
231502ac6454SAndrew Thompson 
231602ac6454SAndrew Thompson static void
2317760bc48eSAndrew Thompson uss820dci_xfer_unsetup(struct usb_xfer *xfer)
231802ac6454SAndrew Thompson {
231902ac6454SAndrew Thompson 	return;
232002ac6454SAndrew Thompson }
232102ac6454SAndrew Thompson 
232202ac6454SAndrew Thompson static void
2323ae60fdfbSAndrew Thompson uss820dci_ep_init(struct usb_device *udev, struct usb_endpoint_descriptor *edesc,
2324ae60fdfbSAndrew Thompson     struct usb_endpoint *ep)
232502ac6454SAndrew Thompson {
232602ac6454SAndrew Thompson 	struct uss820dci_softc *sc = USS820_DCI_BUS2SC(udev->bus);
232702ac6454SAndrew Thompson 
2328ae60fdfbSAndrew Thompson 	DPRINTFN(2, "endpoint=%p, addr=%d, endpt=%d, mode=%d (%d)\n",
2329ae60fdfbSAndrew Thompson 	    ep, udev->address,
2330f29a0724SAndrew Thompson 	    edesc->bEndpointAddress, udev->flags.usb_mode,
233102ac6454SAndrew Thompson 	    sc->sc_rt_addr);
233202ac6454SAndrew Thompson 
233339307315SAndrew Thompson 	if (udev->device_index != sc->sc_rt_addr) {
233402ac6454SAndrew Thompson 
233502ac6454SAndrew Thompson 		if (udev->speed != USB_SPEED_FULL) {
233602ac6454SAndrew Thompson 			/* not supported */
233702ac6454SAndrew Thompson 			return;
233802ac6454SAndrew Thompson 		}
233902ac6454SAndrew Thompson 		switch (edesc->bmAttributes & UE_XFERTYPE) {
234002ac6454SAndrew Thompson 		case UE_CONTROL:
2341ae60fdfbSAndrew Thompson 			ep->methods = &uss820dci_device_ctrl_methods;
234202ac6454SAndrew Thompson 			break;
234302ac6454SAndrew Thompson 		case UE_INTERRUPT:
2344ae60fdfbSAndrew Thompson 			ep->methods = &uss820dci_device_intr_methods;
234502ac6454SAndrew Thompson 			break;
234602ac6454SAndrew Thompson 		case UE_ISOCHRONOUS:
2347ae60fdfbSAndrew Thompson 			ep->methods = &uss820dci_device_isoc_fs_methods;
234802ac6454SAndrew Thompson 			break;
234902ac6454SAndrew Thompson 		case UE_BULK:
2350ae60fdfbSAndrew Thompson 			ep->methods = &uss820dci_device_bulk_methods;
235102ac6454SAndrew Thompson 			break;
235202ac6454SAndrew Thompson 		default:
235302ac6454SAndrew Thompson 			/* do nothing */
235402ac6454SAndrew Thompson 			break;
235502ac6454SAndrew Thompson 		}
235602ac6454SAndrew Thompson 	}
235702ac6454SAndrew Thompson }
235802ac6454SAndrew Thompson 
23592e141748SHans Petter Selasky static void
23602e141748SHans Petter Selasky uss820dci_set_hw_power_sleep(struct usb_bus *bus, uint32_t state)
23612e141748SHans Petter Selasky {
23622e141748SHans Petter Selasky 	struct uss820dci_softc *sc = USS820_DCI_BUS2SC(bus);
23632e141748SHans Petter Selasky 
23642e141748SHans Petter Selasky 	switch (state) {
23652e141748SHans Petter Selasky 	case USB_HW_POWER_SUSPEND:
23662e141748SHans Petter Selasky 		uss820dci_suspend(sc);
23672e141748SHans Petter Selasky 		break;
23682e141748SHans Petter Selasky 	case USB_HW_POWER_SHUTDOWN:
23692e141748SHans Petter Selasky 		uss820dci_uninit(sc);
23702e141748SHans Petter Selasky 		break;
23712e141748SHans Petter Selasky 	case USB_HW_POWER_RESUME:
23722e141748SHans Petter Selasky 		uss820dci_resume(sc);
23732e141748SHans Petter Selasky 		break;
23742e141748SHans Petter Selasky 	default:
23752e141748SHans Petter Selasky 		break;
23762e141748SHans Petter Selasky 	}
23772e141748SHans Petter Selasky }
23782e141748SHans Petter Selasky 
2379*e892b3feSHans Petter Selasky static const struct usb_bus_methods uss820dci_bus_methods =
238002ac6454SAndrew Thompson {
2381ae60fdfbSAndrew Thompson 	.endpoint_init = &uss820dci_ep_init,
238202ac6454SAndrew Thompson 	.xfer_setup = &uss820dci_xfer_setup,
238302ac6454SAndrew Thompson 	.xfer_unsetup = &uss820dci_xfer_unsetup,
238402ac6454SAndrew Thompson 	.get_hw_ep_profile = &uss820dci_get_hw_ep_profile,
2385a5cf1aaaSHans Petter Selasky 	.xfer_stall = &uss820dci_xfer_stall,
238602ac6454SAndrew Thompson 	.set_stall = &uss820dci_set_stall,
238702ac6454SAndrew Thompson 	.clear_stall = &uss820dci_clear_stall,
238839307315SAndrew Thompson 	.roothub_exec = &uss820dci_roothub_exec,
2389dddb25f9SAlfred Perlstein 	.xfer_poll = &uss820dci_do_poll,
23902e141748SHans Petter Selasky 	.set_hw_power_sleep = uss820dci_set_hw_power_sleep,
239102ac6454SAndrew Thompson };
2392