xref: /freebsd/sys/dev/usb/controller/uss820dci.c (revision 39307315677bbff6792775296d86be7942fb4fc8)
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  *
3202ac6454SAndrew Thompson  * NOTE: The datasheet does not document everything!
3302ac6454SAndrew Thompson  */
3402ac6454SAndrew Thompson 
3502ac6454SAndrew Thompson #include <dev/usb/usb.h>
3602ac6454SAndrew Thompson #include <dev/usb/usb_mfunc.h>
3702ac6454SAndrew Thompson #include <dev/usb/usb_revision.h>
3802ac6454SAndrew Thompson #include <dev/usb/usb_error.h>
3902ac6454SAndrew Thompson 
4002ac6454SAndrew Thompson #define	USB_DEBUG_VAR uss820dcidebug
4102ac6454SAndrew Thompson 
4202ac6454SAndrew Thompson #include <dev/usb/usb_core.h>
4302ac6454SAndrew Thompson #include <dev/usb/usb_debug.h>
4402ac6454SAndrew Thompson #include <dev/usb/usb_busdma.h>
4502ac6454SAndrew Thompson #include <dev/usb/usb_process.h>
4602ac6454SAndrew Thompson #include <dev/usb/usb_sw_transfer.h>
4702ac6454SAndrew Thompson #include <dev/usb/usb_transfer.h>
4802ac6454SAndrew Thompson #include <dev/usb/usb_device.h>
4902ac6454SAndrew Thompson #include <dev/usb/usb_hub.h>
5002ac6454SAndrew Thompson #include <dev/usb/usb_util.h>
5102ac6454SAndrew Thompson 
5202ac6454SAndrew Thompson #include <dev/usb/usb_controller.h>
5302ac6454SAndrew Thompson #include <dev/usb/usb_bus.h>
5402ac6454SAndrew Thompson #include <dev/usb/controller/uss820dci.h>
5502ac6454SAndrew Thompson 
5602ac6454SAndrew Thompson #define	USS820_DCI_BUS2SC(bus) \
5702ac6454SAndrew Thompson    ((struct uss820dci_softc *)(((uint8_t *)(bus)) - \
58578d0effSAndrew Thompson     ((uint8_t *)&(((struct uss820dci_softc *)0)->sc_bus))))
5902ac6454SAndrew Thompson 
6002ac6454SAndrew Thompson #define	USS820_DCI_PC2SC(pc) \
61bdc081c6SAndrew Thompson    USS820_DCI_BUS2SC(USB_DMATAG_TO_XROOT((pc)->tag_parent)->bus)
6202ac6454SAndrew Thompson 
6302ac6454SAndrew Thompson #if USB_DEBUG
6402ac6454SAndrew Thompson static int uss820dcidebug = 0;
6502ac6454SAndrew Thompson 
6602ac6454SAndrew Thompson SYSCTL_NODE(_hw_usb2, OID_AUTO, uss820dci, CTLFLAG_RW, 0, "USB uss820dci");
6702ac6454SAndrew Thompson SYSCTL_INT(_hw_usb2_uss820dci, OID_AUTO, debug, CTLFLAG_RW,
6802ac6454SAndrew Thompson     &uss820dcidebug, 0, "uss820dci debug level");
6902ac6454SAndrew Thompson #endif
7002ac6454SAndrew Thompson 
7102ac6454SAndrew Thompson #define	USS820_DCI_INTR_ENDPT 1
7202ac6454SAndrew Thompson 
7302ac6454SAndrew Thompson /* prototypes */
7402ac6454SAndrew Thompson 
7502ac6454SAndrew Thompson struct usb2_bus_methods uss820dci_bus_methods;
7602ac6454SAndrew Thompson struct usb2_pipe_methods uss820dci_device_bulk_methods;
7702ac6454SAndrew Thompson struct usb2_pipe_methods uss820dci_device_ctrl_methods;
7802ac6454SAndrew Thompson struct usb2_pipe_methods uss820dci_device_intr_methods;
7902ac6454SAndrew Thompson struct usb2_pipe_methods uss820dci_device_isoc_fs_methods;
8002ac6454SAndrew Thompson 
8102ac6454SAndrew Thompson static uss820dci_cmd_t uss820dci_setup_rx;
8202ac6454SAndrew Thompson static uss820dci_cmd_t uss820dci_data_rx;
8302ac6454SAndrew Thompson static uss820dci_cmd_t uss820dci_data_tx;
8402ac6454SAndrew Thompson static uss820dci_cmd_t uss820dci_data_tx_sync;
8502ac6454SAndrew Thompson static void	uss820dci_device_done(struct usb2_xfer *, usb2_error_t);
8602ac6454SAndrew Thompson static void	uss820dci_do_poll(struct usb2_bus *);
8702ac6454SAndrew Thompson static void	uss820dci_standard_done(struct usb2_xfer *);
8802ac6454SAndrew Thompson static void	uss820dci_intr_set(struct usb2_xfer *, uint8_t);
8902ac6454SAndrew Thompson static void	uss820dci_update_shared_1(struct uss820dci_softc *, uint8_t,
9002ac6454SAndrew Thompson 		    uint8_t, uint8_t);
9139307315SAndrew Thompson static void	uss820dci_root_intr(struct uss820dci_softc *);
9202ac6454SAndrew Thompson 
9302ac6454SAndrew Thompson /*
9402ac6454SAndrew Thompson  * Here is a list of what the USS820D chip can support. The main
9502ac6454SAndrew Thompson  * limitation is that the sum of the buffer sizes must be less than
9602ac6454SAndrew Thompson  * 1120 bytes.
9702ac6454SAndrew Thompson  */
9802ac6454SAndrew Thompson static const struct usb2_hw_ep_profile
9902ac6454SAndrew Thompson 	uss820dci_ep_profile[] = {
10002ac6454SAndrew Thompson 
10102ac6454SAndrew Thompson 	[0] = {
10202ac6454SAndrew Thompson 		.max_in_frame_size = 32,
10302ac6454SAndrew Thompson 		.max_out_frame_size = 32,
10402ac6454SAndrew Thompson 		.is_simplex = 0,
10502ac6454SAndrew Thompson 		.support_control = 1,
10602ac6454SAndrew Thompson 	},
10702ac6454SAndrew Thompson 	[1] = {
10802ac6454SAndrew Thompson 		.max_in_frame_size = 64,
10902ac6454SAndrew Thompson 		.max_out_frame_size = 64,
11002ac6454SAndrew Thompson 		.is_simplex = 0,
11102ac6454SAndrew Thompson 		.support_multi_buffer = 1,
11202ac6454SAndrew Thompson 		.support_bulk = 1,
11302ac6454SAndrew Thompson 		.support_interrupt = 1,
11402ac6454SAndrew Thompson 		.support_in = 1,
11502ac6454SAndrew Thompson 		.support_out = 1,
11602ac6454SAndrew Thompson 	},
11702ac6454SAndrew Thompson 	[2] = {
11802ac6454SAndrew Thompson 		.max_in_frame_size = 8,
11902ac6454SAndrew Thompson 		.max_out_frame_size = 8,
12002ac6454SAndrew Thompson 		.is_simplex = 0,
12102ac6454SAndrew Thompson 		.support_multi_buffer = 1,
12202ac6454SAndrew Thompson 		.support_bulk = 1,
12302ac6454SAndrew Thompson 		.support_interrupt = 1,
12402ac6454SAndrew Thompson 		.support_in = 1,
12502ac6454SAndrew Thompson 		.support_out = 1,
12602ac6454SAndrew Thompson 	},
12702ac6454SAndrew Thompson 	[3] = {
12802ac6454SAndrew Thompson 		.max_in_frame_size = 256,
12902ac6454SAndrew Thompson 		.max_out_frame_size = 256,
13002ac6454SAndrew Thompson 		.is_simplex = 0,
13102ac6454SAndrew Thompson 		.support_multi_buffer = 1,
13202ac6454SAndrew Thompson 		.support_isochronous = 1,
13302ac6454SAndrew Thompson 		.support_in = 1,
13402ac6454SAndrew Thompson 		.support_out = 1,
13502ac6454SAndrew Thompson 	},
13602ac6454SAndrew Thompson };
13702ac6454SAndrew Thompson 
13802ac6454SAndrew Thompson static void
13902ac6454SAndrew Thompson uss820dci_update_shared_1(struct uss820dci_softc *sc, uint8_t reg,
14002ac6454SAndrew Thompson     uint8_t keep_mask, uint8_t set_mask)
14102ac6454SAndrew Thompson {
14202ac6454SAndrew Thompson 	uint8_t temp;
14302ac6454SAndrew Thompson 
14402ac6454SAndrew Thompson 	USS820_WRITE_1(sc, USS820_PEND, 1);
14502ac6454SAndrew Thompson 	temp = USS820_READ_1(sc, reg);
14602ac6454SAndrew Thompson 	temp &= (keep_mask);
14702ac6454SAndrew Thompson 	temp |= (set_mask);
14802ac6454SAndrew Thompson 	USS820_WRITE_1(sc, reg, temp);
14902ac6454SAndrew Thompson 	USS820_WRITE_1(sc, USS820_PEND, 0);
15002ac6454SAndrew Thompson }
15102ac6454SAndrew Thompson 
15202ac6454SAndrew Thompson static void
15302ac6454SAndrew Thompson uss820dci_get_hw_ep_profile(struct usb2_device *udev,
15402ac6454SAndrew Thompson     const struct usb2_hw_ep_profile **ppf, uint8_t ep_addr)
15502ac6454SAndrew Thompson {
15602ac6454SAndrew Thompson 	if (ep_addr == 0) {
15702ac6454SAndrew Thompson 		*ppf = uss820dci_ep_profile + 0;
15802ac6454SAndrew Thompson 	} else if (ep_addr < 5) {
15902ac6454SAndrew Thompson 		*ppf = uss820dci_ep_profile + 1;
16002ac6454SAndrew Thompson 	} else if (ep_addr < 7) {
16102ac6454SAndrew Thompson 		*ppf = uss820dci_ep_profile + 2;
16202ac6454SAndrew Thompson 	} else if (ep_addr == 7) {
16302ac6454SAndrew Thompson 		*ppf = uss820dci_ep_profile + 3;
16402ac6454SAndrew Thompson 	} else {
16502ac6454SAndrew Thompson 		*ppf = NULL;
16602ac6454SAndrew Thompson 	}
16702ac6454SAndrew Thompson }
16802ac6454SAndrew Thompson 
16902ac6454SAndrew Thompson static void
17002ac6454SAndrew Thompson uss820dci_pull_up(struct uss820dci_softc *sc)
17102ac6454SAndrew Thompson {
17202ac6454SAndrew Thompson 	uint8_t temp;
17302ac6454SAndrew Thompson 
17402ac6454SAndrew Thompson 	/* pullup D+, if possible */
17502ac6454SAndrew Thompson 
17602ac6454SAndrew Thompson 	if (!sc->sc_flags.d_pulled_up &&
17702ac6454SAndrew Thompson 	    sc->sc_flags.port_powered) {
17802ac6454SAndrew Thompson 		sc->sc_flags.d_pulled_up = 1;
17902ac6454SAndrew Thompson 
18002ac6454SAndrew Thompson 		DPRINTF("\n");
18102ac6454SAndrew Thompson 
18202ac6454SAndrew Thompson 		temp = USS820_READ_1(sc, USS820_MCSR);
18302ac6454SAndrew Thompson 		temp |= USS820_MCSR_DPEN;
18402ac6454SAndrew Thompson 		USS820_WRITE_1(sc, USS820_MCSR, temp);
18502ac6454SAndrew Thompson 	}
18602ac6454SAndrew Thompson }
18702ac6454SAndrew Thompson 
18802ac6454SAndrew Thompson static void
18902ac6454SAndrew Thompson uss820dci_pull_down(struct uss820dci_softc *sc)
19002ac6454SAndrew Thompson {
19102ac6454SAndrew Thompson 	uint8_t temp;
19202ac6454SAndrew Thompson 
19302ac6454SAndrew Thompson 	/* pulldown D+, if possible */
19402ac6454SAndrew Thompson 
19502ac6454SAndrew Thompson 	if (sc->sc_flags.d_pulled_up) {
19602ac6454SAndrew Thompson 		sc->sc_flags.d_pulled_up = 0;
19702ac6454SAndrew Thompson 
19802ac6454SAndrew Thompson 		DPRINTF("\n");
19902ac6454SAndrew Thompson 
20002ac6454SAndrew Thompson 		temp = USS820_READ_1(sc, USS820_MCSR);
20102ac6454SAndrew Thompson 		temp &= ~USS820_MCSR_DPEN;
20202ac6454SAndrew Thompson 		USS820_WRITE_1(sc, USS820_MCSR, temp);
20302ac6454SAndrew Thompson 	}
20402ac6454SAndrew Thompson }
20502ac6454SAndrew Thompson 
20602ac6454SAndrew Thompson static void
20702ac6454SAndrew Thompson uss820dci_wakeup_peer(struct uss820dci_softc *sc)
20802ac6454SAndrew Thompson {
20902ac6454SAndrew Thompson 	if (!(sc->sc_flags.status_suspend)) {
21002ac6454SAndrew Thompson 		return;
21102ac6454SAndrew Thompson 	}
21202ac6454SAndrew Thompson 	DPRINTFN(0, "not supported\n");
21302ac6454SAndrew Thompson }
21402ac6454SAndrew Thompson 
21502ac6454SAndrew Thompson static void
21602ac6454SAndrew Thompson uss820dci_set_address(struct uss820dci_softc *sc, uint8_t addr)
21702ac6454SAndrew Thompson {
21802ac6454SAndrew Thompson 	DPRINTFN(5, "addr=%d\n", addr);
21902ac6454SAndrew Thompson 
22002ac6454SAndrew Thompson 	USS820_WRITE_1(sc, USS820_FADDR, addr);
22102ac6454SAndrew Thompson }
22202ac6454SAndrew Thompson 
22302ac6454SAndrew Thompson static uint8_t
22402ac6454SAndrew Thompson uss820dci_setup_rx(struct uss820dci_td *td)
22502ac6454SAndrew Thompson {
22602ac6454SAndrew Thompson 	struct uss820dci_softc *sc;
22702ac6454SAndrew Thompson 	struct usb2_device_request req;
22802ac6454SAndrew Thompson 	uint16_t count;
22902ac6454SAndrew Thompson 	uint8_t rx_stat;
23002ac6454SAndrew Thompson 	uint8_t temp;
23102ac6454SAndrew Thompson 
23202ac6454SAndrew Thompson 	/* select the correct endpoint */
23302ac6454SAndrew Thompson 	bus_space_write_1(td->io_tag, td->io_hdl,
23402ac6454SAndrew Thompson 	    td->ep_reg, td->ep_index);
23502ac6454SAndrew Thompson 
23602ac6454SAndrew Thompson 	/* read out FIFO status */
23702ac6454SAndrew Thompson 	rx_stat = bus_space_read_1(td->io_tag, td->io_hdl,
23802ac6454SAndrew Thompson 	    td->rx_stat_reg);
23902ac6454SAndrew Thompson 
24002ac6454SAndrew Thompson 	/* get pointer to softc */
24102ac6454SAndrew Thompson 	sc = USS820_DCI_PC2SC(td->pc);
24202ac6454SAndrew Thompson 
24302ac6454SAndrew Thompson 	DPRINTFN(5, "rx_stat=0x%02x rem=%u\n", rx_stat, td->remainder);
24402ac6454SAndrew Thompson 
24502ac6454SAndrew Thompson 	if (!(rx_stat & USS820_RXSTAT_RXSETUP)) {
24602ac6454SAndrew Thompson 		goto not_complete;
24702ac6454SAndrew Thompson 	}
248f3464815SAndrew Thompson 	/* clear did stall */
249f3464815SAndrew Thompson 	td->did_stall = 0;
250f3464815SAndrew Thompson 
25102ac6454SAndrew Thompson 	/* clear stall and all I/O */
25202ac6454SAndrew Thompson 	uss820dci_update_shared_1(sc, USS820_EPCON,
25302ac6454SAndrew Thompson 	    0xFF ^ (USS820_EPCON_TXSTL |
25402ac6454SAndrew Thompson 	    USS820_EPCON_RXSTL |
25502ac6454SAndrew Thompson 	    USS820_EPCON_RXIE |
25602ac6454SAndrew Thompson 	    USS820_EPCON_TXOE), 0);
25702ac6454SAndrew Thompson 
25802ac6454SAndrew Thompson 	/* clear end overwrite flag */
25902ac6454SAndrew Thompson 	uss820dci_update_shared_1(sc, USS820_RXSTAT,
26002ac6454SAndrew Thompson 	    0xFF ^ USS820_RXSTAT_EDOVW, 0);
26102ac6454SAndrew Thompson 
26202ac6454SAndrew Thompson 	/* get the packet byte count */
26302ac6454SAndrew Thompson 	count = bus_space_read_1(td->io_tag, td->io_hdl,
26402ac6454SAndrew Thompson 	    td->rx_count_low_reg);
26502ac6454SAndrew Thompson 	count |= (bus_space_read_1(td->io_tag, td->io_hdl,
26602ac6454SAndrew Thompson 	    td->rx_count_high_reg) << 8);
26702ac6454SAndrew Thompson 	count &= 0x3FF;
26802ac6454SAndrew Thompson 
26902ac6454SAndrew Thompson 	/* verify data length */
27002ac6454SAndrew Thompson 	if (count != td->remainder) {
27102ac6454SAndrew Thompson 		DPRINTFN(0, "Invalid SETUP packet "
27202ac6454SAndrew Thompson 		    "length, %d bytes\n", count);
273eb846b4eSAndrew Thompson 		goto setup_not_complete;
27402ac6454SAndrew Thompson 	}
27502ac6454SAndrew Thompson 	if (count != sizeof(req)) {
27602ac6454SAndrew Thompson 		DPRINTFN(0, "Unsupported SETUP packet "
27702ac6454SAndrew Thompson 		    "length, %d bytes\n", count);
278eb846b4eSAndrew Thompson 		goto setup_not_complete;
27902ac6454SAndrew Thompson 	}
28002ac6454SAndrew Thompson 	/* receive data */
28102ac6454SAndrew Thompson 	bus_space_read_multi_1(td->io_tag, td->io_hdl,
28202ac6454SAndrew Thompson 	    td->rx_fifo_reg, (void *)&req, sizeof(req));
28302ac6454SAndrew Thompson 
28402ac6454SAndrew Thompson 	/* read out FIFO status */
28502ac6454SAndrew Thompson 	rx_stat = bus_space_read_1(td->io_tag, td->io_hdl,
28602ac6454SAndrew Thompson 	    td->rx_stat_reg);
28702ac6454SAndrew Thompson 
28802ac6454SAndrew Thompson 	if (rx_stat & (USS820_RXSTAT_EDOVW |
28902ac6454SAndrew Thompson 	    USS820_RXSTAT_STOVW)) {
29002ac6454SAndrew Thompson 		DPRINTF("new SETUP packet received\n");
29102ac6454SAndrew Thompson 		return (1);		/* not complete */
29202ac6454SAndrew Thompson 	}
29302ac6454SAndrew Thompson 	/* clear receive setup bit */
29402ac6454SAndrew Thompson 	uss820dci_update_shared_1(sc, USS820_RXSTAT,
29502ac6454SAndrew Thompson 	    0xFF ^ (USS820_RXSTAT_RXSETUP |
29602ac6454SAndrew Thompson 	    USS820_RXSTAT_EDOVW |
29702ac6454SAndrew Thompson 	    USS820_RXSTAT_STOVW), 0);
29802ac6454SAndrew Thompson 
29902ac6454SAndrew Thompson 	/* set RXFFRC bit */
30002ac6454SAndrew Thompson 	temp = bus_space_read_1(td->io_tag, td->io_hdl,
30102ac6454SAndrew Thompson 	    td->rx_cntl_reg);
30202ac6454SAndrew Thompson 	temp |= USS820_RXCON_RXFFRC;
30302ac6454SAndrew Thompson 	bus_space_write_1(td->io_tag, td->io_hdl,
30402ac6454SAndrew Thompson 	    td->rx_cntl_reg, temp);
30502ac6454SAndrew Thompson 
30602ac6454SAndrew Thompson 	/* copy data into real buffer */
30702ac6454SAndrew Thompson 	usb2_copy_in(td->pc, 0, &req, sizeof(req));
30802ac6454SAndrew Thompson 
30902ac6454SAndrew Thompson 	td->offset = sizeof(req);
31002ac6454SAndrew Thompson 	td->remainder = 0;
31102ac6454SAndrew Thompson 
31202ac6454SAndrew Thompson 	/* sneak peek the set address */
31302ac6454SAndrew Thompson 	if ((req.bmRequestType == UT_WRITE_DEVICE) &&
31402ac6454SAndrew Thompson 	    (req.bRequest == UR_SET_ADDRESS)) {
31502ac6454SAndrew Thompson 		sc->sc_dv_addr = req.wValue[0] & 0x7F;
31602ac6454SAndrew Thompson 	} else {
31702ac6454SAndrew Thompson 		sc->sc_dv_addr = 0xFF;
31802ac6454SAndrew Thompson 	}
31902ac6454SAndrew Thompson 	return (0);			/* complete */
32002ac6454SAndrew Thompson 
321eb846b4eSAndrew Thompson setup_not_complete:
322eb846b4eSAndrew Thompson 
323eb846b4eSAndrew Thompson 	/* set RXFFRC bit */
324eb846b4eSAndrew Thompson 	temp = bus_space_read_1(td->io_tag, td->io_hdl,
325eb846b4eSAndrew Thompson 	    td->rx_cntl_reg);
326eb846b4eSAndrew Thompson 	temp |= USS820_RXCON_RXFFRC;
327eb846b4eSAndrew Thompson 	bus_space_write_1(td->io_tag, td->io_hdl,
328eb846b4eSAndrew Thompson 	    td->rx_cntl_reg, temp);
329eb846b4eSAndrew Thompson 
330eb846b4eSAndrew Thompson 	/* FALLTHROUGH */
331eb846b4eSAndrew Thompson 
33202ac6454SAndrew Thompson not_complete:
333f3464815SAndrew Thompson 	/* abort any ongoing transfer */
334f3464815SAndrew Thompson 	if (!td->did_stall) {
335f3464815SAndrew Thompson 		DPRINTFN(5, "stalling\n");
336f3464815SAndrew Thompson 		/* set stall */
337f3464815SAndrew Thompson 		uss820dci_update_shared_1(sc, USS820_EPCON, 0xFF,
338f3464815SAndrew Thompson 		    (USS820_EPCON_TXSTL | USS820_EPCON_RXSTL));
339f3464815SAndrew Thompson 
340f3464815SAndrew Thompson 		td->did_stall = 1;
341f3464815SAndrew Thompson 	}
342f3464815SAndrew Thompson 
34302ac6454SAndrew Thompson 	/* clear end overwrite flag, if any */
34402ac6454SAndrew Thompson 	if (rx_stat & USS820_RXSTAT_RXSETUP) {
34502ac6454SAndrew Thompson 		uss820dci_update_shared_1(sc, USS820_RXSTAT,
34602ac6454SAndrew Thompson 		    0xFF ^ (USS820_RXSTAT_EDOVW |
34702ac6454SAndrew Thompson 		    USS820_RXSTAT_STOVW |
34802ac6454SAndrew Thompson 		    USS820_RXSTAT_RXSETUP), 0);
34902ac6454SAndrew Thompson 	}
35002ac6454SAndrew Thompson 	return (1);			/* not complete */
35102ac6454SAndrew Thompson 
35202ac6454SAndrew Thompson }
35302ac6454SAndrew Thompson 
35402ac6454SAndrew Thompson static uint8_t
35502ac6454SAndrew Thompson uss820dci_data_rx(struct uss820dci_td *td)
35602ac6454SAndrew Thompson {
35702ac6454SAndrew Thompson 	struct usb2_page_search buf_res;
35802ac6454SAndrew Thompson 	uint16_t count;
35902ac6454SAndrew Thompson 	uint8_t rx_flag;
36002ac6454SAndrew Thompson 	uint8_t rx_stat;
36102ac6454SAndrew Thompson 	uint8_t rx_cntl;
36202ac6454SAndrew Thompson 	uint8_t to;
36302ac6454SAndrew Thompson 	uint8_t got_short;
36402ac6454SAndrew Thompson 
36502ac6454SAndrew Thompson 	to = 2;				/* don't loop forever! */
36602ac6454SAndrew Thompson 	got_short = 0;
36702ac6454SAndrew Thompson 
36802ac6454SAndrew Thompson 	/* select the correct endpoint */
36902ac6454SAndrew Thompson 	bus_space_write_1(td->io_tag, td->io_hdl, td->ep_reg, td->ep_index);
37002ac6454SAndrew Thompson 
37102ac6454SAndrew Thompson 	/* check if any of the FIFO banks have data */
37202ac6454SAndrew Thompson repeat:
37302ac6454SAndrew Thompson 	/* read out FIFO flag */
37402ac6454SAndrew Thompson 	rx_flag = bus_space_read_1(td->io_tag, td->io_hdl,
37502ac6454SAndrew Thompson 	    td->rx_flag_reg);
37602ac6454SAndrew Thompson 	/* read out FIFO status */
37702ac6454SAndrew Thompson 	rx_stat = bus_space_read_1(td->io_tag, td->io_hdl,
37802ac6454SAndrew Thompson 	    td->rx_stat_reg);
37902ac6454SAndrew Thompson 
38002ac6454SAndrew Thompson 	DPRINTFN(5, "rx_stat=0x%02x rx_flag=0x%02x rem=%u\n",
38102ac6454SAndrew Thompson 	    rx_stat, rx_flag, td->remainder);
38202ac6454SAndrew Thompson 
38302ac6454SAndrew Thompson 	if (rx_stat & (USS820_RXSTAT_RXSETUP |
38402ac6454SAndrew Thompson 	    USS820_RXSTAT_RXSOVW |
38502ac6454SAndrew Thompson 	    USS820_RXSTAT_EDOVW)) {
38602ac6454SAndrew Thompson 		if (td->remainder == 0) {
38702ac6454SAndrew Thompson 			/*
38802ac6454SAndrew Thompson 			 * We are actually complete and have
38902ac6454SAndrew Thompson 			 * received the next SETUP
39002ac6454SAndrew Thompson 			 */
39102ac6454SAndrew Thompson 			DPRINTFN(5, "faking complete\n");
39202ac6454SAndrew Thompson 			return (0);	/* complete */
39302ac6454SAndrew Thompson 		}
39402ac6454SAndrew Thompson 		/*
39502ac6454SAndrew Thompson 	         * USB Host Aborted the transfer.
39602ac6454SAndrew Thompson 	         */
39702ac6454SAndrew Thompson 		td->error = 1;
39802ac6454SAndrew Thompson 		return (0);		/* complete */
39902ac6454SAndrew Thompson 	}
40002ac6454SAndrew Thompson 	/* check for errors */
40102ac6454SAndrew Thompson 	if (rx_flag & (USS820_RXFLG_RXOVF |
40202ac6454SAndrew Thompson 	    USS820_RXFLG_RXURF)) {
40302ac6454SAndrew Thompson 		DPRINTFN(5, "overflow or underflow\n");
40402ac6454SAndrew Thompson 		/* should not happen */
40502ac6454SAndrew Thompson 		td->error = 1;
40602ac6454SAndrew Thompson 		return (0);		/* complete */
40702ac6454SAndrew Thompson 	}
40802ac6454SAndrew Thompson 	/* check status */
40902ac6454SAndrew Thompson 	if (!(rx_flag & (USS820_RXFLG_RXFIF0 |
41002ac6454SAndrew Thompson 	    USS820_RXFLG_RXFIF1))) {
41102ac6454SAndrew Thompson 
41202ac6454SAndrew Thompson 		/* read out EPCON register */
41302ac6454SAndrew Thompson 		/* enable RX input */
41402ac6454SAndrew Thompson 		if (!td->did_stall) {
41502ac6454SAndrew Thompson 			uss820dci_update_shared_1(USS820_DCI_PC2SC(td->pc),
41602ac6454SAndrew Thompson 			    USS820_EPCON, 0xFF, USS820_EPCON_RXIE);
41702ac6454SAndrew Thompson 			td->did_stall = 1;
41802ac6454SAndrew Thompson 		}
41902ac6454SAndrew Thompson 		return (1);		/* not complete */
42002ac6454SAndrew Thompson 	}
42102ac6454SAndrew Thompson 	/* get the packet byte count */
42202ac6454SAndrew Thompson 	count = bus_space_read_1(td->io_tag, td->io_hdl,
42302ac6454SAndrew Thompson 	    td->rx_count_low_reg);
42402ac6454SAndrew Thompson 
42502ac6454SAndrew Thompson 	count |= (bus_space_read_1(td->io_tag, td->io_hdl,
42602ac6454SAndrew Thompson 	    td->rx_count_high_reg) << 8);
42702ac6454SAndrew Thompson 	count &= 0x3FF;
42802ac6454SAndrew Thompson 
42902ac6454SAndrew Thompson 	DPRINTFN(5, "count=0x%04x\n", count);
43002ac6454SAndrew Thompson 
43102ac6454SAndrew Thompson 	/* verify the packet byte count */
43202ac6454SAndrew Thompson 	if (count != td->max_packet_size) {
43302ac6454SAndrew Thompson 		if (count < td->max_packet_size) {
43402ac6454SAndrew Thompson 			/* we have a short packet */
43502ac6454SAndrew Thompson 			td->short_pkt = 1;
43602ac6454SAndrew Thompson 			got_short = 1;
43702ac6454SAndrew Thompson 		} else {
43802ac6454SAndrew Thompson 			/* invalid USB packet */
43902ac6454SAndrew Thompson 			td->error = 1;
44002ac6454SAndrew Thompson 			return (0);	/* we are complete */
44102ac6454SAndrew Thompson 		}
44202ac6454SAndrew Thompson 	}
44302ac6454SAndrew Thompson 	/* verify the packet byte count */
44402ac6454SAndrew Thompson 	if (count > td->remainder) {
44502ac6454SAndrew Thompson 		/* invalid USB packet */
44602ac6454SAndrew Thompson 		td->error = 1;
44702ac6454SAndrew Thompson 		return (0);		/* we are complete */
44802ac6454SAndrew Thompson 	}
44902ac6454SAndrew Thompson 	while (count > 0) {
45002ac6454SAndrew Thompson 		usb2_get_page(td->pc, td->offset, &buf_res);
45102ac6454SAndrew Thompson 
45202ac6454SAndrew Thompson 		/* get correct length */
45302ac6454SAndrew Thompson 		if (buf_res.length > count) {
45402ac6454SAndrew Thompson 			buf_res.length = count;
45502ac6454SAndrew Thompson 		}
45602ac6454SAndrew Thompson 		/* receive data */
45702ac6454SAndrew Thompson 		bus_space_read_multi_1(td->io_tag, td->io_hdl,
45802ac6454SAndrew Thompson 		    td->rx_fifo_reg, buf_res.buffer, buf_res.length);
45902ac6454SAndrew Thompson 
46002ac6454SAndrew Thompson 		/* update counters */
46102ac6454SAndrew Thompson 		count -= buf_res.length;
46202ac6454SAndrew Thompson 		td->offset += buf_res.length;
46302ac6454SAndrew Thompson 		td->remainder -= buf_res.length;
46402ac6454SAndrew Thompson 	}
46502ac6454SAndrew Thompson 
46602ac6454SAndrew Thompson 	/* set RXFFRC bit */
46702ac6454SAndrew Thompson 	rx_cntl = bus_space_read_1(td->io_tag, td->io_hdl,
46802ac6454SAndrew Thompson 	    td->rx_cntl_reg);
46902ac6454SAndrew Thompson 	rx_cntl |= USS820_RXCON_RXFFRC;
47002ac6454SAndrew Thompson 	bus_space_write_1(td->io_tag, td->io_hdl,
47102ac6454SAndrew Thompson 	    td->rx_cntl_reg, rx_cntl);
47202ac6454SAndrew Thompson 
47302ac6454SAndrew Thompson 	/* check if we are complete */
47402ac6454SAndrew Thompson 	if ((td->remainder == 0) || got_short) {
47502ac6454SAndrew Thompson 		if (td->short_pkt) {
47602ac6454SAndrew Thompson 			/* we are complete */
47702ac6454SAndrew Thompson 			return (0);
47802ac6454SAndrew Thompson 		}
47902ac6454SAndrew Thompson 		/* else need to receive a zero length packet */
48002ac6454SAndrew Thompson 	}
48102ac6454SAndrew Thompson 	if (--to) {
48202ac6454SAndrew Thompson 		goto repeat;
48302ac6454SAndrew Thompson 	}
48402ac6454SAndrew Thompson 	return (1);			/* not complete */
48502ac6454SAndrew Thompson }
48602ac6454SAndrew Thompson 
48702ac6454SAndrew Thompson static uint8_t
48802ac6454SAndrew Thompson uss820dci_data_tx(struct uss820dci_td *td)
48902ac6454SAndrew Thompson {
49002ac6454SAndrew Thompson 	struct usb2_page_search buf_res;
49102ac6454SAndrew Thompson 	uint16_t count;
49202ac6454SAndrew Thompson 	uint16_t count_copy;
49302ac6454SAndrew Thompson 	uint8_t rx_stat;
49402ac6454SAndrew Thompson 	uint8_t tx_flag;
49502ac6454SAndrew Thompson 	uint8_t to;
49602ac6454SAndrew Thompson 
49702ac6454SAndrew Thompson 	/* select the correct endpoint */
49802ac6454SAndrew Thompson 	bus_space_write_1(td->io_tag, td->io_hdl,
49902ac6454SAndrew Thompson 	    td->ep_reg, td->ep_index);
50002ac6454SAndrew Thompson 
50102ac6454SAndrew Thompson 	to = 2;				/* don't loop forever! */
50202ac6454SAndrew Thompson 
50302ac6454SAndrew Thompson repeat:
50402ac6454SAndrew Thompson 	/* read out TX FIFO flags */
50502ac6454SAndrew Thompson 	tx_flag = bus_space_read_1(td->io_tag, td->io_hdl,
50602ac6454SAndrew Thompson 	    td->tx_flag_reg);
50702ac6454SAndrew Thompson 
50802ac6454SAndrew Thompson 	/* read out RX FIFO status last */
50902ac6454SAndrew Thompson 	rx_stat = bus_space_read_1(td->io_tag, td->io_hdl,
51002ac6454SAndrew Thompson 	    td->rx_stat_reg);
51102ac6454SAndrew Thompson 
51202ac6454SAndrew Thompson 	DPRINTFN(5, "rx_stat=0x%02x tx_flag=0x%02x rem=%u\n",
51302ac6454SAndrew Thompson 	    rx_stat, tx_flag, td->remainder);
51402ac6454SAndrew Thompson 
51502ac6454SAndrew Thompson 	if (rx_stat & (USS820_RXSTAT_RXSETUP |
51602ac6454SAndrew Thompson 	    USS820_RXSTAT_RXSOVW |
51702ac6454SAndrew Thompson 	    USS820_RXSTAT_EDOVW)) {
51802ac6454SAndrew Thompson 		/*
51902ac6454SAndrew Thompson 	         * The current transfer was aborted
52002ac6454SAndrew Thompson 	         * by the USB Host
52102ac6454SAndrew Thompson 	         */
52202ac6454SAndrew Thompson 		td->error = 1;
52302ac6454SAndrew Thompson 		return (0);		/* complete */
52402ac6454SAndrew Thompson 	}
52502ac6454SAndrew Thompson 	if (tx_flag & (USS820_TXFLG_TXOVF |
52602ac6454SAndrew Thompson 	    USS820_TXFLG_TXURF)) {
52702ac6454SAndrew Thompson 		td->error = 1;
52802ac6454SAndrew Thompson 		return (0);		/* complete */
52902ac6454SAndrew Thompson 	}
53002ac6454SAndrew Thompson 	if (tx_flag & USS820_TXFLG_TXFIF0) {
53102ac6454SAndrew Thompson 		if (tx_flag & USS820_TXFLG_TXFIF1) {
53202ac6454SAndrew Thompson 			return (1);	/* not complete */
53302ac6454SAndrew Thompson 		}
53402ac6454SAndrew Thompson 	}
53502ac6454SAndrew Thompson 	if ((!td->support_multi_buffer) &&
53602ac6454SAndrew Thompson 	    (tx_flag & (USS820_TXFLG_TXFIF0 |
53702ac6454SAndrew Thompson 	    USS820_TXFLG_TXFIF1))) {
53802ac6454SAndrew Thompson 		return (1);		/* not complete */
53902ac6454SAndrew Thompson 	}
54002ac6454SAndrew Thompson 	count = td->max_packet_size;
54102ac6454SAndrew Thompson 	if (td->remainder < count) {
54202ac6454SAndrew Thompson 		/* we have a short packet */
54302ac6454SAndrew Thompson 		td->short_pkt = 1;
54402ac6454SAndrew Thompson 		count = td->remainder;
54502ac6454SAndrew Thompson 	}
54602ac6454SAndrew Thompson 	count_copy = count;
54702ac6454SAndrew Thompson 	while (count > 0) {
54802ac6454SAndrew Thompson 
54902ac6454SAndrew Thompson 		usb2_get_page(td->pc, td->offset, &buf_res);
55002ac6454SAndrew Thompson 
55102ac6454SAndrew Thompson 		/* get correct length */
55202ac6454SAndrew Thompson 		if (buf_res.length > count) {
55302ac6454SAndrew Thompson 			buf_res.length = count;
55402ac6454SAndrew Thompson 		}
55502ac6454SAndrew Thompson 		/* transmit data */
55602ac6454SAndrew Thompson 		bus_space_write_multi_1(td->io_tag, td->io_hdl,
55702ac6454SAndrew Thompson 		    td->tx_fifo_reg, buf_res.buffer, buf_res.length);
55802ac6454SAndrew Thompson 
55902ac6454SAndrew Thompson 		/* update counters */
56002ac6454SAndrew Thompson 		count -= buf_res.length;
56102ac6454SAndrew Thompson 		td->offset += buf_res.length;
56202ac6454SAndrew Thompson 		td->remainder -= buf_res.length;
56302ac6454SAndrew Thompson 	}
56402ac6454SAndrew Thompson 
56502ac6454SAndrew Thompson 	/* post-write high packet byte count first */
56602ac6454SAndrew Thompson 	bus_space_write_1(td->io_tag, td->io_hdl,
56702ac6454SAndrew Thompson 	    td->tx_count_high_reg, count_copy >> 8);
56802ac6454SAndrew Thompson 
56902ac6454SAndrew Thompson 	/* post-write low packet byte count last */
57002ac6454SAndrew Thompson 	bus_space_write_1(td->io_tag, td->io_hdl,
57102ac6454SAndrew Thompson 	    td->tx_count_low_reg, count_copy);
57202ac6454SAndrew Thompson 
57302ac6454SAndrew Thompson 	/*
57402ac6454SAndrew Thompson 	 * Enable TX output, which must happen after that we have written
57502ac6454SAndrew Thompson 	 * data into the FIFO. This is undocumented.
57602ac6454SAndrew Thompson 	 */
57702ac6454SAndrew Thompson 	if (!td->did_stall) {
57802ac6454SAndrew Thompson 		uss820dci_update_shared_1(USS820_DCI_PC2SC(td->pc),
57902ac6454SAndrew Thompson 		    USS820_EPCON, 0xFF, USS820_EPCON_TXOE);
58002ac6454SAndrew Thompson 		td->did_stall = 1;
58102ac6454SAndrew Thompson 	}
58202ac6454SAndrew Thompson 	/* check remainder */
58302ac6454SAndrew Thompson 	if (td->remainder == 0) {
58402ac6454SAndrew Thompson 		if (td->short_pkt) {
58502ac6454SAndrew Thompson 			return (0);	/* complete */
58602ac6454SAndrew Thompson 		}
58702ac6454SAndrew Thompson 		/* else we need to transmit a short packet */
58802ac6454SAndrew Thompson 	}
58902ac6454SAndrew Thompson 	if (--to) {
59002ac6454SAndrew Thompson 		goto repeat;
59102ac6454SAndrew Thompson 	}
59202ac6454SAndrew Thompson 	return (1);			/* not complete */
59302ac6454SAndrew Thompson }
59402ac6454SAndrew Thompson 
59502ac6454SAndrew Thompson static uint8_t
59602ac6454SAndrew Thompson uss820dci_data_tx_sync(struct uss820dci_td *td)
59702ac6454SAndrew Thompson {
59802ac6454SAndrew Thompson 	struct uss820dci_softc *sc;
59902ac6454SAndrew Thompson 	uint8_t rx_stat;
60002ac6454SAndrew Thompson 	uint8_t tx_flag;
60102ac6454SAndrew Thompson 
60202ac6454SAndrew Thompson 	/* select the correct endpoint */
60302ac6454SAndrew Thompson 	bus_space_write_1(td->io_tag, td->io_hdl,
60402ac6454SAndrew Thompson 	    td->ep_reg, td->ep_index);
60502ac6454SAndrew Thompson 
60602ac6454SAndrew Thompson 	/* read out TX FIFO flag */
60702ac6454SAndrew Thompson 	tx_flag = bus_space_read_1(td->io_tag, td->io_hdl,
60802ac6454SAndrew Thompson 	    td->tx_flag_reg);
60902ac6454SAndrew Thompson 
61002ac6454SAndrew Thompson 	/* read out RX FIFO status last */
61102ac6454SAndrew Thompson 	rx_stat = bus_space_read_1(td->io_tag, td->io_hdl,
61202ac6454SAndrew Thompson 	    td->rx_stat_reg);
61302ac6454SAndrew Thompson 
61402ac6454SAndrew Thompson 	DPRINTFN(5, "rx_stat=0x%02x rem=%u\n", rx_stat, td->remainder);
61502ac6454SAndrew Thompson 
61602ac6454SAndrew Thompson 	if (rx_stat & (USS820_RXSTAT_RXSETUP |
61702ac6454SAndrew Thompson 	    USS820_RXSTAT_RXSOVW |
61802ac6454SAndrew Thompson 	    USS820_RXSTAT_EDOVW)) {
61902ac6454SAndrew Thompson 		DPRINTFN(5, "faking complete\n");
62002ac6454SAndrew Thompson 		/* Race condition */
62102ac6454SAndrew Thompson 		return (0);		/* complete */
62202ac6454SAndrew Thompson 	}
62302ac6454SAndrew Thompson 	DPRINTFN(5, "tx_flag=0x%02x rem=%u\n",
62402ac6454SAndrew Thompson 	    tx_flag, td->remainder);
62502ac6454SAndrew Thompson 
62602ac6454SAndrew Thompson 	if (tx_flag & (USS820_TXFLG_TXOVF |
62702ac6454SAndrew Thompson 	    USS820_TXFLG_TXURF)) {
62802ac6454SAndrew Thompson 		td->error = 1;
62902ac6454SAndrew Thompson 		return (0);		/* complete */
63002ac6454SAndrew Thompson 	}
63102ac6454SAndrew Thompson 	if (tx_flag & (USS820_TXFLG_TXFIF0 |
63202ac6454SAndrew Thompson 	    USS820_TXFLG_TXFIF1)) {
63302ac6454SAndrew Thompson 		return (1);		/* not complete */
63402ac6454SAndrew Thompson 	}
63502ac6454SAndrew Thompson 	sc = USS820_DCI_PC2SC(td->pc);
63602ac6454SAndrew Thompson 	if (sc->sc_dv_addr != 0xFF) {
63702ac6454SAndrew Thompson 		/* write function address */
63802ac6454SAndrew Thompson 		uss820dci_set_address(sc, sc->sc_dv_addr);
63902ac6454SAndrew Thompson 	}
64002ac6454SAndrew Thompson 	return (0);			/* complete */
64102ac6454SAndrew Thompson }
64202ac6454SAndrew Thompson 
64302ac6454SAndrew Thompson static uint8_t
64402ac6454SAndrew Thompson uss820dci_xfer_do_fifo(struct usb2_xfer *xfer)
64502ac6454SAndrew Thompson {
64602ac6454SAndrew Thompson 	struct uss820dci_td *td;
64702ac6454SAndrew Thompson 
64802ac6454SAndrew Thompson 	DPRINTFN(9, "\n");
64902ac6454SAndrew Thompson 
65002ac6454SAndrew Thompson 	td = xfer->td_transfer_cache;
65102ac6454SAndrew Thompson 	while (1) {
65202ac6454SAndrew Thompson 		if ((td->func) (td)) {
65302ac6454SAndrew Thompson 			/* operation in progress */
65402ac6454SAndrew Thompson 			break;
65502ac6454SAndrew Thompson 		}
65602ac6454SAndrew Thompson 		if (((void *)td) == xfer->td_transfer_last) {
65702ac6454SAndrew Thompson 			goto done;
65802ac6454SAndrew Thompson 		}
65902ac6454SAndrew Thompson 		if (td->error) {
66002ac6454SAndrew Thompson 			goto done;
66102ac6454SAndrew Thompson 		} else if (td->remainder > 0) {
66202ac6454SAndrew Thompson 			/*
66302ac6454SAndrew Thompson 			 * We had a short transfer. If there is no alternate
66402ac6454SAndrew Thompson 			 * next, stop processing !
66502ac6454SAndrew Thompson 			 */
66602ac6454SAndrew Thompson 			if (!td->alt_next) {
66702ac6454SAndrew Thompson 				goto done;
66802ac6454SAndrew Thompson 			}
66902ac6454SAndrew Thompson 		}
67002ac6454SAndrew Thompson 		/*
67102ac6454SAndrew Thompson 		 * Fetch the next transfer descriptor.
67202ac6454SAndrew Thompson 		 */
67302ac6454SAndrew Thompson 		td = td->obj_next;
67402ac6454SAndrew Thompson 		xfer->td_transfer_cache = td;
67502ac6454SAndrew Thompson 	}
67602ac6454SAndrew Thompson 	return (1);			/* not complete */
67702ac6454SAndrew Thompson 
67802ac6454SAndrew Thompson done:
67902ac6454SAndrew Thompson 	/* compute all actual lengths */
68002ac6454SAndrew Thompson 
68102ac6454SAndrew Thompson 	uss820dci_standard_done(xfer);
68202ac6454SAndrew Thompson 
68302ac6454SAndrew Thompson 	return (0);			/* complete */
68402ac6454SAndrew Thompson }
68502ac6454SAndrew Thompson 
68602ac6454SAndrew Thompson static void
68702ac6454SAndrew Thompson uss820dci_interrupt_poll(struct uss820dci_softc *sc)
68802ac6454SAndrew Thompson {
68902ac6454SAndrew Thompson 	struct usb2_xfer *xfer;
69002ac6454SAndrew Thompson 
69102ac6454SAndrew Thompson repeat:
69202ac6454SAndrew Thompson 	TAILQ_FOREACH(xfer, &sc->sc_bus.intr_q.head, wait_entry) {
69302ac6454SAndrew Thompson 		if (!uss820dci_xfer_do_fifo(xfer)) {
69402ac6454SAndrew Thompson 			/* queue has been modified */
69502ac6454SAndrew Thompson 			goto repeat;
69602ac6454SAndrew Thompson 		}
69702ac6454SAndrew Thompson 	}
69802ac6454SAndrew Thompson }
69902ac6454SAndrew Thompson 
70002ac6454SAndrew Thompson static void
70102ac6454SAndrew Thompson uss820dci_wait_suspend(struct uss820dci_softc *sc, uint8_t on)
70202ac6454SAndrew Thompson {
70302ac6454SAndrew Thompson 	uint8_t scr;
70402ac6454SAndrew Thompson 	uint8_t scratch;
70502ac6454SAndrew Thompson 
70602ac6454SAndrew Thompson 	scr = USS820_READ_1(sc, USS820_SCR);
70702ac6454SAndrew Thompson 	scratch = USS820_READ_1(sc, USS820_SCRATCH);
70802ac6454SAndrew Thompson 
70902ac6454SAndrew Thompson 	if (on) {
71002ac6454SAndrew Thompson 		scr |= USS820_SCR_IE_SUSP;
71102ac6454SAndrew Thompson 		scratch &= ~USS820_SCRATCH_IE_RESUME;
71202ac6454SAndrew Thompson 	} else {
71302ac6454SAndrew Thompson 		scr &= ~USS820_SCR_IE_SUSP;
71402ac6454SAndrew Thompson 		scratch |= USS820_SCRATCH_IE_RESUME;
71502ac6454SAndrew Thompson 	}
71602ac6454SAndrew Thompson 
71702ac6454SAndrew Thompson 	USS820_WRITE_1(sc, USS820_SCR, scr);
71802ac6454SAndrew Thompson 	USS820_WRITE_1(sc, USS820_SCRATCH, scratch);
71902ac6454SAndrew Thompson }
72002ac6454SAndrew Thompson 
72102ac6454SAndrew Thompson void
72202ac6454SAndrew Thompson uss820dci_interrupt(struct uss820dci_softc *sc)
72302ac6454SAndrew Thompson {
72402ac6454SAndrew Thompson 	uint8_t ssr;
72502ac6454SAndrew Thompson 	uint8_t event;
72602ac6454SAndrew Thompson 
72702ac6454SAndrew Thompson 	USB_BUS_LOCK(&sc->sc_bus);
72802ac6454SAndrew Thompson 
72902ac6454SAndrew Thompson 	ssr = USS820_READ_1(sc, USS820_SSR);
73002ac6454SAndrew Thompson 
73102ac6454SAndrew Thompson 	ssr &= (USS820_SSR_SUSPEND |
73202ac6454SAndrew Thompson 	    USS820_SSR_RESUME |
73302ac6454SAndrew Thompson 	    USS820_SSR_RESET);
73402ac6454SAndrew Thompson 
73502ac6454SAndrew Thompson 	/* acknowledge all interrupts */
73602ac6454SAndrew Thompson 
73702ac6454SAndrew Thompson 	uss820dci_update_shared_1(sc, USS820_SSR, 0, 0);
73802ac6454SAndrew Thompson 
73902ac6454SAndrew Thompson 	/* check for any bus state change interrupts */
74002ac6454SAndrew Thompson 
74102ac6454SAndrew Thompson 	if (ssr) {
74202ac6454SAndrew Thompson 
74302ac6454SAndrew Thompson 		event = 0;
74402ac6454SAndrew Thompson 
74502ac6454SAndrew Thompson 		if (ssr & USS820_SSR_RESET) {
74602ac6454SAndrew Thompson 			sc->sc_flags.status_bus_reset = 1;
74702ac6454SAndrew Thompson 			sc->sc_flags.status_suspend = 0;
74802ac6454SAndrew Thompson 			sc->sc_flags.change_suspend = 0;
74902ac6454SAndrew Thompson 			sc->sc_flags.change_connect = 1;
75002ac6454SAndrew Thompson 
75102ac6454SAndrew Thompson 			/* disable resume interrupt */
75202ac6454SAndrew Thompson 			uss820dci_wait_suspend(sc, 1);
75302ac6454SAndrew Thompson 
75402ac6454SAndrew Thompson 			event = 1;
75502ac6454SAndrew Thompson 		}
75602ac6454SAndrew Thompson 		/*
75702ac6454SAndrew Thompson 	         * If "RESUME" and "SUSPEND" is set at the same time
75802ac6454SAndrew Thompson 	         * we interpret that like "RESUME". Resume is set when
75902ac6454SAndrew Thompson 	         * there is at least 3 milliseconds of inactivity on
76002ac6454SAndrew Thompson 	         * the USB BUS.
76102ac6454SAndrew Thompson 	         */
76202ac6454SAndrew Thompson 		if (ssr & USS820_SSR_RESUME) {
76302ac6454SAndrew Thompson 			if (sc->sc_flags.status_suspend) {
76402ac6454SAndrew Thompson 				sc->sc_flags.status_suspend = 0;
76502ac6454SAndrew Thompson 				sc->sc_flags.change_suspend = 1;
76602ac6454SAndrew Thompson 				/* disable resume interrupt */
76702ac6454SAndrew Thompson 				uss820dci_wait_suspend(sc, 1);
76802ac6454SAndrew Thompson 				event = 1;
76902ac6454SAndrew Thompson 			}
77002ac6454SAndrew Thompson 		} else if (ssr & USS820_SSR_SUSPEND) {
77102ac6454SAndrew Thompson 			if (!sc->sc_flags.status_suspend) {
77202ac6454SAndrew Thompson 				sc->sc_flags.status_suspend = 1;
77302ac6454SAndrew Thompson 				sc->sc_flags.change_suspend = 1;
77402ac6454SAndrew Thompson 				/* enable resume interrupt */
77502ac6454SAndrew Thompson 				uss820dci_wait_suspend(sc, 0);
77602ac6454SAndrew Thompson 				event = 1;
77702ac6454SAndrew Thompson 			}
77802ac6454SAndrew Thompson 		}
77902ac6454SAndrew Thompson 		if (event) {
78002ac6454SAndrew Thompson 
78102ac6454SAndrew Thompson 			DPRINTF("real bus interrupt 0x%02x\n", ssr);
78202ac6454SAndrew Thompson 
78302ac6454SAndrew Thompson 			/* complete root HUB interrupt endpoint */
78439307315SAndrew Thompson 			uss820dci_root_intr(sc);
78502ac6454SAndrew Thompson 		}
78602ac6454SAndrew Thompson 	}
78702ac6454SAndrew Thompson 	/* acknowledge all SBI interrupts */
78802ac6454SAndrew Thompson 	uss820dci_update_shared_1(sc, USS820_SBI, 0, 0);
78902ac6454SAndrew Thompson 
79002ac6454SAndrew Thompson 	/* acknowledge all SBI1 interrupts */
79102ac6454SAndrew Thompson 	uss820dci_update_shared_1(sc, USS820_SBI1, 0, 0);
79202ac6454SAndrew Thompson 
79302ac6454SAndrew Thompson 	/* poll all active transfers */
79402ac6454SAndrew Thompson 	uss820dci_interrupt_poll(sc);
79502ac6454SAndrew Thompson 
79602ac6454SAndrew Thompson 	USB_BUS_UNLOCK(&sc->sc_bus);
79702ac6454SAndrew Thompson }
79802ac6454SAndrew Thompson 
79902ac6454SAndrew Thompson static void
80002ac6454SAndrew Thompson uss820dci_setup_standard_chain_sub(struct uss820_std_temp *temp)
80102ac6454SAndrew Thompson {
80202ac6454SAndrew Thompson 	struct uss820dci_td *td;
80302ac6454SAndrew Thompson 
80402ac6454SAndrew Thompson 	/* get current Transfer Descriptor */
80502ac6454SAndrew Thompson 	td = temp->td_next;
80602ac6454SAndrew Thompson 	temp->td = td;
80702ac6454SAndrew Thompson 
80802ac6454SAndrew Thompson 	/* prepare for next TD */
80902ac6454SAndrew Thompson 	temp->td_next = td->obj_next;
81002ac6454SAndrew Thompson 
81102ac6454SAndrew Thompson 	/* fill out the Transfer Descriptor */
81202ac6454SAndrew Thompson 	td->func = temp->func;
81302ac6454SAndrew Thompson 	td->pc = temp->pc;
81402ac6454SAndrew Thompson 	td->offset = temp->offset;
81502ac6454SAndrew Thompson 	td->remainder = temp->len;
81602ac6454SAndrew Thompson 	td->error = 0;
81702ac6454SAndrew Thompson 	td->did_stall = 0;
81802ac6454SAndrew Thompson 	td->short_pkt = temp->short_pkt;
81902ac6454SAndrew Thompson 	td->alt_next = temp->setup_alt_next;
82002ac6454SAndrew Thompson }
82102ac6454SAndrew Thompson 
82202ac6454SAndrew Thompson static void
82302ac6454SAndrew Thompson uss820dci_setup_standard_chain(struct usb2_xfer *xfer)
82402ac6454SAndrew Thompson {
82502ac6454SAndrew Thompson 	struct uss820_std_temp temp;
82602ac6454SAndrew Thompson 	struct uss820dci_softc *sc;
82702ac6454SAndrew Thompson 	struct uss820dci_td *td;
82802ac6454SAndrew Thompson 	uint32_t x;
82902ac6454SAndrew Thompson 	uint8_t ep_no;
83002ac6454SAndrew Thompson 
83102ac6454SAndrew Thompson 	DPRINTFN(9, "addr=%d endpt=%d sumlen=%d speed=%d\n",
83202ac6454SAndrew Thompson 	    xfer->address, UE_GET_ADDR(xfer->endpoint),
83302ac6454SAndrew Thompson 	    xfer->sumlen, usb2_get_speed(xfer->xroot->udev));
83402ac6454SAndrew Thompson 
83502ac6454SAndrew Thompson 	temp.max_frame_size = xfer->max_frame_size;
83602ac6454SAndrew Thompson 
83702ac6454SAndrew Thompson 	td = xfer->td_start[0];
83802ac6454SAndrew Thompson 	xfer->td_transfer_first = td;
83902ac6454SAndrew Thompson 	xfer->td_transfer_cache = td;
84002ac6454SAndrew Thompson 
84102ac6454SAndrew Thompson 	/* setup temp */
84202ac6454SAndrew Thompson 
84302ac6454SAndrew Thompson 	temp.td = NULL;
84402ac6454SAndrew Thompson 	temp.td_next = xfer->td_start[0];
84502ac6454SAndrew Thompson 	temp.offset = 0;
8460f7d4548SAndrew Thompson 	temp.setup_alt_next = xfer->flags_int.short_frames_ok;
84702ac6454SAndrew Thompson 
84802ac6454SAndrew Thompson 	sc = USS820_DCI_BUS2SC(xfer->xroot->bus);
84902ac6454SAndrew Thompson 	ep_no = (xfer->endpoint & UE_ADDR);
85002ac6454SAndrew Thompson 
85102ac6454SAndrew Thompson 	/* check if we should prepend a setup message */
85202ac6454SAndrew Thompson 
85302ac6454SAndrew Thompson 	if (xfer->flags_int.control_xfr) {
85402ac6454SAndrew Thompson 		if (xfer->flags_int.control_hdr) {
85502ac6454SAndrew Thompson 
85602ac6454SAndrew Thompson 			temp.func = &uss820dci_setup_rx;
85702ac6454SAndrew Thompson 			temp.len = xfer->frlengths[0];
85802ac6454SAndrew Thompson 			temp.pc = xfer->frbuffers + 0;
85902ac6454SAndrew Thompson 			temp.short_pkt = temp.len ? 1 : 0;
8600f7d4548SAndrew Thompson 			/* check for last frame */
8610f7d4548SAndrew Thompson 			if (xfer->nframes == 1) {
8620f7d4548SAndrew Thompson 				/* no STATUS stage yet, SETUP is last */
8630f7d4548SAndrew Thompson 				if (xfer->flags_int.control_act)
8640f7d4548SAndrew Thompson 					temp.setup_alt_next = 0;
8650f7d4548SAndrew Thompson 			}
86602ac6454SAndrew Thompson 
86702ac6454SAndrew Thompson 			uss820dci_setup_standard_chain_sub(&temp);
86802ac6454SAndrew Thompson 		}
86902ac6454SAndrew Thompson 		x = 1;
87002ac6454SAndrew Thompson 	} else {
87102ac6454SAndrew Thompson 		x = 0;
87202ac6454SAndrew Thompson 	}
87302ac6454SAndrew Thompson 
87402ac6454SAndrew Thompson 	if (x != xfer->nframes) {
87502ac6454SAndrew Thompson 		if (xfer->endpoint & UE_DIR_IN) {
87602ac6454SAndrew Thompson 			temp.func = &uss820dci_data_tx;
87702ac6454SAndrew Thompson 		} else {
87802ac6454SAndrew Thompson 			temp.func = &uss820dci_data_rx;
87902ac6454SAndrew Thompson 		}
88002ac6454SAndrew Thompson 
88102ac6454SAndrew Thompson 		/* setup "pc" pointer */
88202ac6454SAndrew Thompson 		temp.pc = xfer->frbuffers + x;
88302ac6454SAndrew Thompson 	}
88402ac6454SAndrew Thompson 	while (x != xfer->nframes) {
88502ac6454SAndrew Thompson 
88602ac6454SAndrew Thompson 		/* DATA0 / DATA1 message */
88702ac6454SAndrew Thompson 
88802ac6454SAndrew Thompson 		temp.len = xfer->frlengths[x];
88902ac6454SAndrew Thompson 
89002ac6454SAndrew Thompson 		x++;
89102ac6454SAndrew Thompson 
89202ac6454SAndrew Thompson 		if (x == xfer->nframes) {
8930f7d4548SAndrew Thompson 			if (xfer->flags_int.control_xfr) {
8940f7d4548SAndrew Thompson 				if (xfer->flags_int.control_act) {
89502ac6454SAndrew Thompson 					temp.setup_alt_next = 0;
89602ac6454SAndrew Thompson 				}
8970f7d4548SAndrew Thompson 			} else {
8980f7d4548SAndrew Thompson 				temp.setup_alt_next = 0;
8990f7d4548SAndrew Thompson 			}
9000f7d4548SAndrew Thompson 		}
90102ac6454SAndrew Thompson 		if (temp.len == 0) {
90202ac6454SAndrew Thompson 
90302ac6454SAndrew Thompson 			/* make sure that we send an USB packet */
90402ac6454SAndrew Thompson 
90502ac6454SAndrew Thompson 			temp.short_pkt = 0;
90602ac6454SAndrew Thompson 
90702ac6454SAndrew Thompson 		} else {
90802ac6454SAndrew Thompson 
90902ac6454SAndrew Thompson 			/* regular data transfer */
91002ac6454SAndrew Thompson 
91102ac6454SAndrew Thompson 			temp.short_pkt = (xfer->flags.force_short_xfer) ? 0 : 1;
91202ac6454SAndrew Thompson 		}
91302ac6454SAndrew Thompson 
91402ac6454SAndrew Thompson 		uss820dci_setup_standard_chain_sub(&temp);
91502ac6454SAndrew Thompson 
91602ac6454SAndrew Thompson 		if (xfer->flags_int.isochronous_xfr) {
91702ac6454SAndrew Thompson 			temp.offset += temp.len;
91802ac6454SAndrew Thompson 		} else {
91902ac6454SAndrew Thompson 			/* get next Page Cache pointer */
92002ac6454SAndrew Thompson 			temp.pc = xfer->frbuffers + x;
92102ac6454SAndrew Thompson 		}
92202ac6454SAndrew Thompson 	}
92302ac6454SAndrew Thompson 
9240f7d4548SAndrew Thompson 	/* check for control transfer */
9250f7d4548SAndrew Thompson 	if (xfer->flags_int.control_xfr) {
9260f7d4548SAndrew Thompson 		uint8_t need_sync;
9270f7d4548SAndrew Thompson 
92802ac6454SAndrew Thompson 		/* always setup a valid "pc" pointer for status and sync */
92902ac6454SAndrew Thompson 		temp.pc = xfer->frbuffers + 0;
9300f7d4548SAndrew Thompson 		temp.len = 0;
9310f7d4548SAndrew Thompson 		temp.short_pkt = 0;
9320f7d4548SAndrew Thompson 		temp.setup_alt_next = 0;
93302ac6454SAndrew Thompson 
93402ac6454SAndrew Thompson 		/* check if we should append a status stage */
9350f7d4548SAndrew Thompson 		if (!xfer->flags_int.control_act) {
93602ac6454SAndrew Thompson 
93702ac6454SAndrew Thompson 			/*
93802ac6454SAndrew Thompson 			 * Send a DATA1 message and invert the current
93902ac6454SAndrew Thompson 			 * endpoint direction.
94002ac6454SAndrew Thompson 			 */
94102ac6454SAndrew Thompson 			if (xfer->endpoint & UE_DIR_IN) {
94202ac6454SAndrew Thompson 				temp.func = &uss820dci_data_rx;
94302ac6454SAndrew Thompson 				need_sync = 0;
94402ac6454SAndrew Thompson 			} else {
94502ac6454SAndrew Thompson 				temp.func = &uss820dci_data_tx;
94602ac6454SAndrew Thompson 				need_sync = 1;
94702ac6454SAndrew Thompson 			}
94802ac6454SAndrew Thompson 			temp.len = 0;
94902ac6454SAndrew Thompson 			temp.short_pkt = 0;
95002ac6454SAndrew Thompson 
95102ac6454SAndrew Thompson 			uss820dci_setup_standard_chain_sub(&temp);
95202ac6454SAndrew Thompson 			if (need_sync) {
95302ac6454SAndrew Thompson 				/* we need a SYNC point after TX */
95402ac6454SAndrew Thompson 				temp.func = &uss820dci_data_tx_sync;
95502ac6454SAndrew Thompson 				uss820dci_setup_standard_chain_sub(&temp);
95602ac6454SAndrew Thompson 			}
95702ac6454SAndrew Thompson 		}
9580f7d4548SAndrew Thompson 	}
95902ac6454SAndrew Thompson 	/* must have at least one frame! */
96002ac6454SAndrew Thompson 	td = temp.td;
96102ac6454SAndrew Thompson 	xfer->td_transfer_last = td;
96202ac6454SAndrew Thompson }
96302ac6454SAndrew Thompson 
96402ac6454SAndrew Thompson static void
96502ac6454SAndrew Thompson uss820dci_timeout(void *arg)
96602ac6454SAndrew Thompson {
96702ac6454SAndrew Thompson 	struct usb2_xfer *xfer = arg;
96802ac6454SAndrew Thompson 
96902ac6454SAndrew Thompson 	DPRINTF("xfer=%p\n", xfer);
97002ac6454SAndrew Thompson 
97102ac6454SAndrew Thompson 	USB_BUS_LOCK_ASSERT(xfer->xroot->bus, MA_OWNED);
97202ac6454SAndrew Thompson 
97302ac6454SAndrew Thompson 	/* transfer is transferred */
97402ac6454SAndrew Thompson 	uss820dci_device_done(xfer, USB_ERR_TIMEOUT);
97502ac6454SAndrew Thompson }
97602ac6454SAndrew Thompson 
97702ac6454SAndrew Thompson static void
97802ac6454SAndrew Thompson uss820dci_intr_set(struct usb2_xfer *xfer, uint8_t set)
97902ac6454SAndrew Thompson {
98002ac6454SAndrew Thompson 	struct uss820dci_softc *sc = USS820_DCI_BUS2SC(xfer->xroot->bus);
98102ac6454SAndrew Thompson 	uint8_t ep_no = (xfer->endpoint & UE_ADDR);
98202ac6454SAndrew Thompson 	uint8_t ep_reg;
98302ac6454SAndrew Thompson 	uint8_t temp;
98402ac6454SAndrew Thompson 
98502ac6454SAndrew Thompson 	DPRINTFN(15, "endpoint 0x%02x\n", xfer->endpoint);
98602ac6454SAndrew Thompson 
98702ac6454SAndrew Thompson 	if (ep_no > 3) {
98802ac6454SAndrew Thompson 		ep_reg = USS820_SBIE1;
98902ac6454SAndrew Thompson 	} else {
99002ac6454SAndrew Thompson 		ep_reg = USS820_SBIE;
99102ac6454SAndrew Thompson 	}
99202ac6454SAndrew Thompson 
99302ac6454SAndrew Thompson 	ep_no &= 3;
99402ac6454SAndrew Thompson 	ep_no = 1 << (2 * ep_no);
99502ac6454SAndrew Thompson 
99602ac6454SAndrew Thompson 	if (xfer->flags_int.control_xfr) {
99702ac6454SAndrew Thompson 		if (xfer->flags_int.control_hdr) {
99802ac6454SAndrew Thompson 			ep_no <<= 1;	/* RX interrupt only */
99902ac6454SAndrew Thompson 		} else {
100002ac6454SAndrew Thompson 			ep_no |= (ep_no << 1);	/* RX and TX interrupt */
100102ac6454SAndrew Thompson 		}
100202ac6454SAndrew Thompson 	} else {
100302ac6454SAndrew Thompson 		if (!(xfer->endpoint & UE_DIR_IN)) {
100402ac6454SAndrew Thompson 			ep_no <<= 1;
100502ac6454SAndrew Thompson 		}
100602ac6454SAndrew Thompson 	}
100702ac6454SAndrew Thompson 	temp = USS820_READ_1(sc, ep_reg);
100802ac6454SAndrew Thompson 	if (set) {
100902ac6454SAndrew Thompson 		temp |= ep_no;
101002ac6454SAndrew Thompson 	} else {
101102ac6454SAndrew Thompson 		temp &= ~ep_no;
101202ac6454SAndrew Thompson 	}
101302ac6454SAndrew Thompson 	USS820_WRITE_1(sc, ep_reg, temp);
101402ac6454SAndrew Thompson }
101502ac6454SAndrew Thompson 
101602ac6454SAndrew Thompson static void
101702ac6454SAndrew Thompson uss820dci_start_standard_chain(struct usb2_xfer *xfer)
101802ac6454SAndrew Thompson {
101902ac6454SAndrew Thompson 	DPRINTFN(9, "\n");
102002ac6454SAndrew Thompson 
102102ac6454SAndrew Thompson 	/* poll one time */
102202ac6454SAndrew Thompson 	if (uss820dci_xfer_do_fifo(xfer)) {
102302ac6454SAndrew Thompson 
102402ac6454SAndrew Thompson 		/*
102502ac6454SAndrew Thompson 		 * Only enable the endpoint interrupt when we are
102602ac6454SAndrew Thompson 		 * actually waiting for data, hence we are dealing
102702ac6454SAndrew Thompson 		 * with level triggered interrupts !
102802ac6454SAndrew Thompson 		 */
102902ac6454SAndrew Thompson 		uss820dci_intr_set(xfer, 1);
103002ac6454SAndrew Thompson 
103102ac6454SAndrew Thompson 		/* put transfer on interrupt queue */
103202ac6454SAndrew Thompson 		usb2_transfer_enqueue(&xfer->xroot->bus->intr_q, xfer);
103302ac6454SAndrew Thompson 
103402ac6454SAndrew Thompson 		/* start timeout, if any */
103502ac6454SAndrew Thompson 		if (xfer->timeout != 0) {
103602ac6454SAndrew Thompson 			usb2_transfer_timeout_ms(xfer,
103702ac6454SAndrew Thompson 			    &uss820dci_timeout, xfer->timeout);
103802ac6454SAndrew Thompson 		}
103902ac6454SAndrew Thompson 	}
104002ac6454SAndrew Thompson }
104102ac6454SAndrew Thompson 
104202ac6454SAndrew Thompson static void
104339307315SAndrew Thompson uss820dci_root_intr(struct uss820dci_softc *sc)
104402ac6454SAndrew Thompson {
104502ac6454SAndrew Thompson 	DPRINTFN(9, "\n");
104602ac6454SAndrew Thompson 
104702ac6454SAndrew Thompson 	USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED);
104802ac6454SAndrew Thompson 
104902ac6454SAndrew Thompson 	/* set port bit */
105002ac6454SAndrew Thompson 	sc->sc_hub_idata[0] = 0x02;	/* we only have one port */
105102ac6454SAndrew Thompson 
105239307315SAndrew Thompson 	uhub_root_intr(&sc->sc_bus, sc->sc_hub_idata,
105339307315SAndrew Thompson 	    sizeof(sc->sc_hub_idata));
105402ac6454SAndrew Thompson }
105502ac6454SAndrew Thompson 
105602ac6454SAndrew Thompson static usb2_error_t
105702ac6454SAndrew Thompson uss820dci_standard_done_sub(struct usb2_xfer *xfer)
105802ac6454SAndrew Thompson {
105902ac6454SAndrew Thompson 	struct uss820dci_td *td;
106002ac6454SAndrew Thompson 	uint32_t len;
106102ac6454SAndrew Thompson 	uint8_t error;
106202ac6454SAndrew Thompson 
106302ac6454SAndrew Thompson 	DPRINTFN(9, "\n");
106402ac6454SAndrew Thompson 
106502ac6454SAndrew Thompson 	td = xfer->td_transfer_cache;
106602ac6454SAndrew Thompson 
106702ac6454SAndrew Thompson 	do {
106802ac6454SAndrew Thompson 		len = td->remainder;
106902ac6454SAndrew Thompson 
107002ac6454SAndrew Thompson 		if (xfer->aframes != xfer->nframes) {
107102ac6454SAndrew Thompson 			/*
107202ac6454SAndrew Thompson 		         * Verify the length and subtract
107302ac6454SAndrew Thompson 		         * the remainder from "frlengths[]":
107402ac6454SAndrew Thompson 		         */
107502ac6454SAndrew Thompson 			if (len > xfer->frlengths[xfer->aframes]) {
107602ac6454SAndrew Thompson 				td->error = 1;
107702ac6454SAndrew Thompson 			} else {
107802ac6454SAndrew Thompson 				xfer->frlengths[xfer->aframes] -= len;
107902ac6454SAndrew Thompson 			}
108002ac6454SAndrew Thompson 		}
108102ac6454SAndrew Thompson 		/* Check for transfer error */
108202ac6454SAndrew Thompson 		if (td->error) {
108302ac6454SAndrew Thompson 			/* the transfer is finished */
108402ac6454SAndrew Thompson 			error = 1;
108502ac6454SAndrew Thompson 			td = NULL;
108602ac6454SAndrew Thompson 			break;
108702ac6454SAndrew Thompson 		}
108802ac6454SAndrew Thompson 		/* Check for short transfer */
108902ac6454SAndrew Thompson 		if (len > 0) {
109002ac6454SAndrew Thompson 			if (xfer->flags_int.short_frames_ok) {
109102ac6454SAndrew Thompson 				/* follow alt next */
109202ac6454SAndrew Thompson 				if (td->alt_next) {
109302ac6454SAndrew Thompson 					td = td->obj_next;
109402ac6454SAndrew Thompson 				} else {
109502ac6454SAndrew Thompson 					td = NULL;
109602ac6454SAndrew Thompson 				}
109702ac6454SAndrew Thompson 			} else {
109802ac6454SAndrew Thompson 				/* the transfer is finished */
109902ac6454SAndrew Thompson 				td = NULL;
110002ac6454SAndrew Thompson 			}
110102ac6454SAndrew Thompson 			error = 0;
110202ac6454SAndrew Thompson 			break;
110302ac6454SAndrew Thompson 		}
110402ac6454SAndrew Thompson 		td = td->obj_next;
110502ac6454SAndrew Thompson 
110602ac6454SAndrew Thompson 		/* this USB frame is complete */
110702ac6454SAndrew Thompson 		error = 0;
110802ac6454SAndrew Thompson 		break;
110902ac6454SAndrew Thompson 
111002ac6454SAndrew Thompson 	} while (0);
111102ac6454SAndrew Thompson 
111202ac6454SAndrew Thompson 	/* update transfer cache */
111302ac6454SAndrew Thompson 
111402ac6454SAndrew Thompson 	xfer->td_transfer_cache = td;
111502ac6454SAndrew Thompson 
111602ac6454SAndrew Thompson 	return (error ?
111702ac6454SAndrew Thompson 	    USB_ERR_STALLED : USB_ERR_NORMAL_COMPLETION);
111802ac6454SAndrew Thompson }
111902ac6454SAndrew Thompson 
112002ac6454SAndrew Thompson static void
112102ac6454SAndrew Thompson uss820dci_standard_done(struct usb2_xfer *xfer)
112202ac6454SAndrew Thompson {
112302ac6454SAndrew Thompson 	usb2_error_t err = 0;
112402ac6454SAndrew Thompson 
112502ac6454SAndrew Thompson 	DPRINTFN(13, "xfer=%p pipe=%p transfer done\n",
112602ac6454SAndrew Thompson 	    xfer, xfer->pipe);
112702ac6454SAndrew Thompson 
112802ac6454SAndrew Thompson 	/* reset scanner */
112902ac6454SAndrew Thompson 
113002ac6454SAndrew Thompson 	xfer->td_transfer_cache = xfer->td_transfer_first;
113102ac6454SAndrew Thompson 
113202ac6454SAndrew Thompson 	if (xfer->flags_int.control_xfr) {
113302ac6454SAndrew Thompson 
113402ac6454SAndrew Thompson 		if (xfer->flags_int.control_hdr) {
113502ac6454SAndrew Thompson 
113602ac6454SAndrew Thompson 			err = uss820dci_standard_done_sub(xfer);
113702ac6454SAndrew Thompson 		}
113802ac6454SAndrew Thompson 		xfer->aframes = 1;
113902ac6454SAndrew Thompson 
114002ac6454SAndrew Thompson 		if (xfer->td_transfer_cache == NULL) {
114102ac6454SAndrew Thompson 			goto done;
114202ac6454SAndrew Thompson 		}
114302ac6454SAndrew Thompson 	}
114402ac6454SAndrew Thompson 	while (xfer->aframes != xfer->nframes) {
114502ac6454SAndrew Thompson 
114602ac6454SAndrew Thompson 		err = uss820dci_standard_done_sub(xfer);
114702ac6454SAndrew Thompson 		xfer->aframes++;
114802ac6454SAndrew Thompson 
114902ac6454SAndrew Thompson 		if (xfer->td_transfer_cache == NULL) {
115002ac6454SAndrew Thompson 			goto done;
115102ac6454SAndrew Thompson 		}
115202ac6454SAndrew Thompson 	}
115302ac6454SAndrew Thompson 
115402ac6454SAndrew Thompson 	if (xfer->flags_int.control_xfr &&
115502ac6454SAndrew Thompson 	    !xfer->flags_int.control_act) {
115602ac6454SAndrew Thompson 
115702ac6454SAndrew Thompson 		err = uss820dci_standard_done_sub(xfer);
115802ac6454SAndrew Thompson 	}
115902ac6454SAndrew Thompson done:
116002ac6454SAndrew Thompson 	uss820dci_device_done(xfer, err);
116102ac6454SAndrew Thompson }
116202ac6454SAndrew Thompson 
116302ac6454SAndrew Thompson /*------------------------------------------------------------------------*
116402ac6454SAndrew Thompson  *	uss820dci_device_done
116502ac6454SAndrew Thompson  *
116602ac6454SAndrew Thompson  * NOTE: this function can be called more than one time on the
116702ac6454SAndrew Thompson  * same USB transfer!
116802ac6454SAndrew Thompson  *------------------------------------------------------------------------*/
116902ac6454SAndrew Thompson static void
117002ac6454SAndrew Thompson uss820dci_device_done(struct usb2_xfer *xfer, usb2_error_t error)
117102ac6454SAndrew Thompson {
117202ac6454SAndrew Thompson 	USB_BUS_LOCK_ASSERT(xfer->xroot->bus, MA_OWNED);
117302ac6454SAndrew Thompson 
117402ac6454SAndrew Thompson 	DPRINTFN(2, "xfer=%p, pipe=%p, error=%d\n",
117502ac6454SAndrew Thompson 	    xfer, xfer->pipe, error);
117602ac6454SAndrew Thompson 
117702ac6454SAndrew Thompson 	if (xfer->flags_int.usb2_mode == USB_MODE_DEVICE) {
117802ac6454SAndrew Thompson 		uss820dci_intr_set(xfer, 0);
117902ac6454SAndrew Thompson 	}
118002ac6454SAndrew Thompson 	/* dequeue transfer and start next transfer */
118102ac6454SAndrew Thompson 	usb2_transfer_done(xfer, error);
118202ac6454SAndrew Thompson }
118302ac6454SAndrew Thompson 
118402ac6454SAndrew Thompson static void
118502ac6454SAndrew Thompson uss820dci_set_stall(struct usb2_device *udev, struct usb2_xfer *xfer,
118602ac6454SAndrew Thompson     struct usb2_pipe *pipe)
118702ac6454SAndrew Thompson {
118802ac6454SAndrew Thompson 	struct uss820dci_softc *sc;
118902ac6454SAndrew Thompson 	uint8_t ep_no;
119002ac6454SAndrew Thompson 	uint8_t ep_type;
119102ac6454SAndrew Thompson 	uint8_t ep_dir;
119202ac6454SAndrew Thompson 	uint8_t temp;
119302ac6454SAndrew Thompson 
119402ac6454SAndrew Thompson 	USB_BUS_LOCK_ASSERT(udev->bus, MA_OWNED);
119502ac6454SAndrew Thompson 
119602ac6454SAndrew Thompson 	DPRINTFN(5, "pipe=%p\n", pipe);
119702ac6454SAndrew Thompson 
119802ac6454SAndrew Thompson 	if (xfer) {
119902ac6454SAndrew Thompson 		/* cancel any ongoing transfers */
120002ac6454SAndrew Thompson 		uss820dci_device_done(xfer, USB_ERR_STALLED);
120102ac6454SAndrew Thompson 	}
120202ac6454SAndrew Thompson 	/* set FORCESTALL */
120302ac6454SAndrew Thompson 	sc = USS820_DCI_BUS2SC(udev->bus);
120402ac6454SAndrew Thompson 	ep_no = (pipe->edesc->bEndpointAddress & UE_ADDR);
120502ac6454SAndrew Thompson 	ep_dir = (pipe->edesc->bEndpointAddress & (UE_DIR_IN | UE_DIR_OUT));
120602ac6454SAndrew Thompson 	ep_type = (pipe->edesc->bmAttributes & UE_XFERTYPE);
120702ac6454SAndrew Thompson 
120802ac6454SAndrew Thompson 	if (ep_type == UE_CONTROL) {
120902ac6454SAndrew Thompson 		/* should not happen */
121002ac6454SAndrew Thompson 		return;
121102ac6454SAndrew Thompson 	}
121202ac6454SAndrew Thompson 	USS820_WRITE_1(sc, USS820_EPINDEX, ep_no);
121302ac6454SAndrew Thompson 
121402ac6454SAndrew Thompson 	if (ep_dir == UE_DIR_IN) {
121502ac6454SAndrew Thompson 		temp = USS820_EPCON_TXSTL;
121602ac6454SAndrew Thompson 	} else {
121702ac6454SAndrew Thompson 		temp = USS820_EPCON_RXSTL;
121802ac6454SAndrew Thompson 	}
121902ac6454SAndrew Thompson 	uss820dci_update_shared_1(sc, USS820_EPCON, 0xFF, temp);
122002ac6454SAndrew Thompson }
122102ac6454SAndrew Thompson 
122202ac6454SAndrew Thompson static void
122302ac6454SAndrew Thompson uss820dci_clear_stall_sub(struct uss820dci_softc *sc,
122402ac6454SAndrew Thompson     uint8_t ep_no, uint8_t ep_type, uint8_t ep_dir)
122502ac6454SAndrew Thompson {
122602ac6454SAndrew Thompson 	uint8_t temp;
122702ac6454SAndrew Thompson 
122802ac6454SAndrew Thompson 	if (ep_type == UE_CONTROL) {
122902ac6454SAndrew Thompson 		/* clearing stall is not needed */
123002ac6454SAndrew Thompson 		return;
123102ac6454SAndrew Thompson 	}
123202ac6454SAndrew Thompson 	/* select endpoint index */
123302ac6454SAndrew Thompson 	USS820_WRITE_1(sc, USS820_EPINDEX, ep_no);
123402ac6454SAndrew Thompson 
123502ac6454SAndrew Thompson 	/* clear stall and disable I/O transfers */
123602ac6454SAndrew Thompson 	if (ep_dir == UE_DIR_IN) {
123702ac6454SAndrew Thompson 		temp = 0xFF ^ (USS820_EPCON_TXOE |
123802ac6454SAndrew Thompson 		    USS820_EPCON_TXSTL);
123902ac6454SAndrew Thompson 	} else {
124002ac6454SAndrew Thompson 		temp = 0xFF ^ (USS820_EPCON_RXIE |
124102ac6454SAndrew Thompson 		    USS820_EPCON_RXSTL);
124202ac6454SAndrew Thompson 	}
124302ac6454SAndrew Thompson 	uss820dci_update_shared_1(sc, USS820_EPCON, temp, 0);
124402ac6454SAndrew Thompson 
124502ac6454SAndrew Thompson 	if (ep_dir == UE_DIR_IN) {
124602ac6454SAndrew Thompson 		/* reset data toggle */
124702ac6454SAndrew Thompson 		USS820_WRITE_1(sc, USS820_TXSTAT,
124802ac6454SAndrew Thompson 		    USS820_TXSTAT_TXSOVW);
124902ac6454SAndrew Thompson 
125002ac6454SAndrew Thompson 		/* reset FIFO */
125102ac6454SAndrew Thompson 		temp = USS820_READ_1(sc, USS820_TXCON);
125202ac6454SAndrew Thompson 		temp |= USS820_TXCON_TXCLR;
125302ac6454SAndrew Thompson 		USS820_WRITE_1(sc, USS820_TXCON, temp);
125402ac6454SAndrew Thompson 		temp &= ~USS820_TXCON_TXCLR;
125502ac6454SAndrew Thompson 		USS820_WRITE_1(sc, USS820_TXCON, temp);
125602ac6454SAndrew Thompson 	} else {
125702ac6454SAndrew Thompson 
125802ac6454SAndrew Thompson 		/* reset data toggle */
125902ac6454SAndrew Thompson 		uss820dci_update_shared_1(sc, USS820_RXSTAT,
126002ac6454SAndrew Thompson 		    0, USS820_RXSTAT_RXSOVW);
126102ac6454SAndrew Thompson 
126202ac6454SAndrew Thompson 		/* reset FIFO */
126302ac6454SAndrew Thompson 		temp = USS820_READ_1(sc, USS820_RXCON);
126402ac6454SAndrew Thompson 		temp |= USS820_RXCON_RXCLR;
126502ac6454SAndrew Thompson 		temp &= ~USS820_RXCON_RXFFRC;
126602ac6454SAndrew Thompson 		USS820_WRITE_1(sc, USS820_RXCON, temp);
126702ac6454SAndrew Thompson 		temp &= ~USS820_RXCON_RXCLR;
126802ac6454SAndrew Thompson 		USS820_WRITE_1(sc, USS820_RXCON, temp);
126902ac6454SAndrew Thompson 	}
127002ac6454SAndrew Thompson }
127102ac6454SAndrew Thompson 
127202ac6454SAndrew Thompson static void
127302ac6454SAndrew Thompson uss820dci_clear_stall(struct usb2_device *udev, struct usb2_pipe *pipe)
127402ac6454SAndrew Thompson {
127502ac6454SAndrew Thompson 	struct uss820dci_softc *sc;
127602ac6454SAndrew Thompson 	struct usb2_endpoint_descriptor *ed;
127702ac6454SAndrew Thompson 
127802ac6454SAndrew Thompson 	USB_BUS_LOCK_ASSERT(udev->bus, MA_OWNED);
127902ac6454SAndrew Thompson 
128002ac6454SAndrew Thompson 	DPRINTFN(5, "pipe=%p\n", pipe);
128102ac6454SAndrew Thompson 
128202ac6454SAndrew Thompson 	/* check mode */
128302ac6454SAndrew Thompson 	if (udev->flags.usb2_mode != USB_MODE_DEVICE) {
128402ac6454SAndrew Thompson 		/* not supported */
128502ac6454SAndrew Thompson 		return;
128602ac6454SAndrew Thompson 	}
128702ac6454SAndrew Thompson 	/* get softc */
128802ac6454SAndrew Thompson 	sc = USS820_DCI_BUS2SC(udev->bus);
128902ac6454SAndrew Thompson 
129002ac6454SAndrew Thompson 	/* get endpoint descriptor */
129102ac6454SAndrew Thompson 	ed = pipe->edesc;
129202ac6454SAndrew Thompson 
129302ac6454SAndrew Thompson 	/* reset endpoint */
129402ac6454SAndrew Thompson 	uss820dci_clear_stall_sub(sc,
129502ac6454SAndrew Thompson 	    (ed->bEndpointAddress & UE_ADDR),
129602ac6454SAndrew Thompson 	    (ed->bmAttributes & UE_XFERTYPE),
129702ac6454SAndrew Thompson 	    (ed->bEndpointAddress & (UE_DIR_IN | UE_DIR_OUT)));
129802ac6454SAndrew Thompson }
129902ac6454SAndrew Thompson 
130002ac6454SAndrew Thompson usb2_error_t
130102ac6454SAndrew Thompson uss820dci_init(struct uss820dci_softc *sc)
130202ac6454SAndrew Thompson {
130302ac6454SAndrew Thompson 	const struct usb2_hw_ep_profile *pf;
130402ac6454SAndrew Thompson 	uint8_t n;
130502ac6454SAndrew Thompson 	uint8_t temp;
130602ac6454SAndrew Thompson 
130702ac6454SAndrew Thompson 	DPRINTF("start\n");
130802ac6454SAndrew Thompson 
130902ac6454SAndrew Thompson 	/* set up the bus structure */
131002ac6454SAndrew Thompson 	sc->sc_bus.usbrev = USB_REV_1_1;
131102ac6454SAndrew Thompson 	sc->sc_bus.methods = &uss820dci_bus_methods;
131202ac6454SAndrew Thompson 
131302ac6454SAndrew Thompson 	USB_BUS_LOCK(&sc->sc_bus);
131402ac6454SAndrew Thompson 
131502ac6454SAndrew Thompson 	/* we always have VBUS */
131602ac6454SAndrew Thompson 	sc->sc_flags.status_vbus = 1;
131702ac6454SAndrew Thompson 
131802ac6454SAndrew Thompson 	/* reset the chip */
131902ac6454SAndrew Thompson 	USS820_WRITE_1(sc, USS820_SCR, USS820_SCR_SRESET);
132002ac6454SAndrew Thompson 	DELAY(100);
132102ac6454SAndrew Thompson 	USS820_WRITE_1(sc, USS820_SCR, 0);
132202ac6454SAndrew Thompson 
132302ac6454SAndrew Thompson 	/* wait for reset to complete */
132402ac6454SAndrew Thompson 	for (n = 0;; n++) {
132502ac6454SAndrew Thompson 
132602ac6454SAndrew Thompson 		temp = USS820_READ_1(sc, USS820_MCSR);
132702ac6454SAndrew Thompson 
132802ac6454SAndrew Thompson 		if (temp & USS820_MCSR_INIT) {
132902ac6454SAndrew Thompson 			break;
133002ac6454SAndrew Thompson 		}
133102ac6454SAndrew Thompson 		if (n == 100) {
133202ac6454SAndrew Thompson 			USB_BUS_UNLOCK(&sc->sc_bus);
133302ac6454SAndrew Thompson 			return (USB_ERR_INVAL);
133402ac6454SAndrew Thompson 		}
133502ac6454SAndrew Thompson 		/* wait a little for things to stabilise */
133602ac6454SAndrew Thompson 		DELAY(100);
133702ac6454SAndrew Thompson 	}
133802ac6454SAndrew Thompson 
133902ac6454SAndrew Thompson 	/* do a pulldown */
134002ac6454SAndrew Thompson 	uss820dci_pull_down(sc);
134102ac6454SAndrew Thompson 
134202ac6454SAndrew Thompson 	/* wait 10ms for pulldown to stabilise */
134302ac6454SAndrew Thompson 	usb2_pause_mtx(&sc->sc_bus.bus_mtx, hz / 100);
134402ac6454SAndrew Thompson 
134502ac6454SAndrew Thompson 	/* check hardware revision */
134602ac6454SAndrew Thompson 	temp = USS820_READ_1(sc, USS820_REV);
134702ac6454SAndrew Thompson 
134802ac6454SAndrew Thompson 	if (temp < 0x13) {
134902ac6454SAndrew Thompson 		USB_BUS_UNLOCK(&sc->sc_bus);
135002ac6454SAndrew Thompson 		return (USB_ERR_INVAL);
135102ac6454SAndrew Thompson 	}
135202ac6454SAndrew Thompson 	/* enable interrupts */
135302ac6454SAndrew Thompson 	USS820_WRITE_1(sc, USS820_SCR,
135402ac6454SAndrew Thompson 	    USS820_SCR_T_IRQ |
135502ac6454SAndrew Thompson 	    USS820_SCR_IE_RESET |
135602ac6454SAndrew Thompson 	/* USS820_SCR_RWUPE | */
135702ac6454SAndrew Thompson 	    USS820_SCR_IE_SUSP |
135802ac6454SAndrew Thompson 	    USS820_SCR_IRQPOL);
135902ac6454SAndrew Thompson 
136002ac6454SAndrew Thompson 	/* enable interrupts */
136102ac6454SAndrew Thompson 	USS820_WRITE_1(sc, USS820_SCRATCH,
136202ac6454SAndrew Thompson 	    USS820_SCRATCH_IE_RESUME);
136302ac6454SAndrew Thompson 
136402ac6454SAndrew Thompson 	/* enable features */
136502ac6454SAndrew Thompson 	USS820_WRITE_1(sc, USS820_MCSR,
136602ac6454SAndrew Thompson 	    USS820_MCSR_BDFEAT |
136702ac6454SAndrew Thompson 	    USS820_MCSR_FEAT);
136802ac6454SAndrew Thompson 
136902ac6454SAndrew Thompson 	sc->sc_flags.mcsr_feat = 1;
137002ac6454SAndrew Thompson 
137102ac6454SAndrew Thompson 	/* disable interrupts */
137202ac6454SAndrew Thompson 	USS820_WRITE_1(sc, USS820_SBIE, 0);
137302ac6454SAndrew Thompson 
137402ac6454SAndrew Thompson 	/* disable interrupts */
137502ac6454SAndrew Thompson 	USS820_WRITE_1(sc, USS820_SBIE1, 0);
137602ac6454SAndrew Thompson 
137702ac6454SAndrew Thompson 	/* disable all endpoints */
137802ac6454SAndrew Thompson 	for (n = 0; n != USS820_EP_MAX; n++) {
137902ac6454SAndrew Thompson 
138002ac6454SAndrew Thompson 		/* select endpoint */
138102ac6454SAndrew Thompson 		USS820_WRITE_1(sc, USS820_EPINDEX, n);
138202ac6454SAndrew Thompson 
138302ac6454SAndrew Thompson 		/* disable endpoint */
138402ac6454SAndrew Thompson 		uss820dci_update_shared_1(sc, USS820_EPCON, 0, 0);
138502ac6454SAndrew Thompson 	}
138602ac6454SAndrew Thompson 
138702ac6454SAndrew Thompson 	/*
138802ac6454SAndrew Thompson 	 * Initialise default values for some registers that cannot be
138902ac6454SAndrew Thompson 	 * changed during operation!
139002ac6454SAndrew Thompson 	 */
139102ac6454SAndrew Thompson 	for (n = 0; n != USS820_EP_MAX; n++) {
139202ac6454SAndrew Thompson 
139302ac6454SAndrew Thompson 		uss820dci_get_hw_ep_profile(NULL, &pf, n);
139402ac6454SAndrew Thompson 
139502ac6454SAndrew Thompson 		/* the maximum frame sizes should be the same */
139602ac6454SAndrew Thompson 		if (pf->max_in_frame_size != pf->max_out_frame_size) {
139702ac6454SAndrew Thompson 			DPRINTF("Max frame size mismatch %u != %u\n",
139802ac6454SAndrew Thompson 			    pf->max_in_frame_size, pf->max_out_frame_size);
139902ac6454SAndrew Thompson 		}
140002ac6454SAndrew Thompson 		if (pf->support_isochronous) {
140102ac6454SAndrew Thompson 			if (pf->max_in_frame_size <= 64) {
140202ac6454SAndrew Thompson 				temp = (USS820_TXCON_FFSZ_16_64 |
140302ac6454SAndrew Thompson 				    USS820_TXCON_TXISO |
140402ac6454SAndrew Thompson 				    USS820_TXCON_ATM);
140502ac6454SAndrew Thompson 			} else if (pf->max_in_frame_size <= 256) {
140602ac6454SAndrew Thompson 				temp = (USS820_TXCON_FFSZ_64_256 |
140702ac6454SAndrew Thompson 				    USS820_TXCON_TXISO |
140802ac6454SAndrew Thompson 				    USS820_TXCON_ATM);
140902ac6454SAndrew Thompson 			} else if (pf->max_in_frame_size <= 512) {
141002ac6454SAndrew Thompson 				temp = (USS820_TXCON_FFSZ_8_512 |
141102ac6454SAndrew Thompson 				    USS820_TXCON_TXISO |
141202ac6454SAndrew Thompson 				    USS820_TXCON_ATM);
141302ac6454SAndrew Thompson 			} else {	/* 1024 bytes */
141402ac6454SAndrew Thompson 				temp = (USS820_TXCON_FFSZ_32_1024 |
141502ac6454SAndrew Thompson 				    USS820_TXCON_TXISO |
141602ac6454SAndrew Thompson 				    USS820_TXCON_ATM);
141702ac6454SAndrew Thompson 			}
141802ac6454SAndrew Thompson 		} else {
141902ac6454SAndrew Thompson 			if ((pf->max_in_frame_size <= 8) &&
142002ac6454SAndrew Thompson 			    (sc->sc_flags.mcsr_feat)) {
142102ac6454SAndrew Thompson 				temp = (USS820_TXCON_FFSZ_8_512 |
142202ac6454SAndrew Thompson 				    USS820_TXCON_ATM);
142302ac6454SAndrew Thompson 			} else if (pf->max_in_frame_size <= 16) {
142402ac6454SAndrew Thompson 				temp = (USS820_TXCON_FFSZ_16_64 |
142502ac6454SAndrew Thompson 				    USS820_TXCON_ATM);
142602ac6454SAndrew Thompson 			} else if ((pf->max_in_frame_size <= 32) &&
142702ac6454SAndrew Thompson 			    (sc->sc_flags.mcsr_feat)) {
142802ac6454SAndrew Thompson 				temp = (USS820_TXCON_FFSZ_32_1024 |
142902ac6454SAndrew Thompson 				    USS820_TXCON_ATM);
143002ac6454SAndrew Thompson 			} else {	/* 64 bytes */
143102ac6454SAndrew Thompson 				temp = (USS820_TXCON_FFSZ_64_256 |
143202ac6454SAndrew Thompson 				    USS820_TXCON_ATM);
143302ac6454SAndrew Thompson 			}
143402ac6454SAndrew Thompson 		}
143502ac6454SAndrew Thompson 
143602ac6454SAndrew Thompson 		/* need to configure the chip early */
143702ac6454SAndrew Thompson 
143802ac6454SAndrew Thompson 		USS820_WRITE_1(sc, USS820_EPINDEX, n);
143902ac6454SAndrew Thompson 		USS820_WRITE_1(sc, USS820_TXCON, temp);
144002ac6454SAndrew Thompson 		USS820_WRITE_1(sc, USS820_RXCON, temp);
144102ac6454SAndrew Thompson 
144202ac6454SAndrew Thompson 		if (pf->support_control) {
144302ac6454SAndrew Thompson 			temp = USS820_EPCON_CTLEP |
144402ac6454SAndrew Thompson 			    USS820_EPCON_RXSPM |
144502ac6454SAndrew Thompson 			    USS820_EPCON_RXIE |
144602ac6454SAndrew Thompson 			    USS820_EPCON_RXEPEN |
144702ac6454SAndrew Thompson 			    USS820_EPCON_TXOE |
144802ac6454SAndrew Thompson 			    USS820_EPCON_TXEPEN;
144902ac6454SAndrew Thompson 		} else {
145002ac6454SAndrew Thompson 			temp = USS820_EPCON_RXEPEN | USS820_EPCON_TXEPEN;
145102ac6454SAndrew Thompson 		}
145202ac6454SAndrew Thompson 
145302ac6454SAndrew Thompson 		uss820dci_update_shared_1(sc, USS820_EPCON, 0xFF, temp);
145402ac6454SAndrew Thompson 	}
145502ac6454SAndrew Thompson 
145602ac6454SAndrew Thompson 	USB_BUS_UNLOCK(&sc->sc_bus);
145702ac6454SAndrew Thompson 
145802ac6454SAndrew Thompson 	/* catch any lost interrupts */
145902ac6454SAndrew Thompson 
146002ac6454SAndrew Thompson 	uss820dci_do_poll(&sc->sc_bus);
146102ac6454SAndrew Thompson 
146202ac6454SAndrew Thompson 	return (0);			/* success */
146302ac6454SAndrew Thompson }
146402ac6454SAndrew Thompson 
146502ac6454SAndrew Thompson void
146602ac6454SAndrew Thompson uss820dci_uninit(struct uss820dci_softc *sc)
146702ac6454SAndrew Thompson {
146802ac6454SAndrew Thompson 	uint8_t temp;
146902ac6454SAndrew Thompson 
147002ac6454SAndrew Thompson 	USB_BUS_LOCK(&sc->sc_bus);
147102ac6454SAndrew Thompson 
147202ac6454SAndrew Thompson 	/* disable all interrupts */
147302ac6454SAndrew Thompson 	temp = USS820_READ_1(sc, USS820_SCR);
147402ac6454SAndrew Thompson 	temp &= ~USS820_SCR_T_IRQ;
147502ac6454SAndrew Thompson 	USS820_WRITE_1(sc, USS820_SCR, temp);
147602ac6454SAndrew Thompson 
147702ac6454SAndrew Thompson 	sc->sc_flags.port_powered = 0;
147802ac6454SAndrew Thompson 	sc->sc_flags.status_vbus = 0;
147902ac6454SAndrew Thompson 	sc->sc_flags.status_bus_reset = 0;
148002ac6454SAndrew Thompson 	sc->sc_flags.status_suspend = 0;
148102ac6454SAndrew Thompson 	sc->sc_flags.change_suspend = 0;
148202ac6454SAndrew Thompson 	sc->sc_flags.change_connect = 1;
148302ac6454SAndrew Thompson 
148402ac6454SAndrew Thompson 	uss820dci_pull_down(sc);
148502ac6454SAndrew Thompson 	USB_BUS_UNLOCK(&sc->sc_bus);
148602ac6454SAndrew Thompson }
148702ac6454SAndrew Thompson 
148802ac6454SAndrew Thompson void
148902ac6454SAndrew Thompson uss820dci_suspend(struct uss820dci_softc *sc)
149002ac6454SAndrew Thompson {
149102ac6454SAndrew Thompson 	return;
149202ac6454SAndrew Thompson }
149302ac6454SAndrew Thompson 
149402ac6454SAndrew Thompson void
149502ac6454SAndrew Thompson uss820dci_resume(struct uss820dci_softc *sc)
149602ac6454SAndrew Thompson {
149702ac6454SAndrew Thompson 	return;
149802ac6454SAndrew Thompson }
149902ac6454SAndrew Thompson 
150002ac6454SAndrew Thompson static void
150102ac6454SAndrew Thompson uss820dci_do_poll(struct usb2_bus *bus)
150202ac6454SAndrew Thompson {
150302ac6454SAndrew Thompson 	struct uss820dci_softc *sc = USS820_DCI_BUS2SC(bus);
150402ac6454SAndrew Thompson 
150502ac6454SAndrew Thompson 	USB_BUS_LOCK(&sc->sc_bus);
150602ac6454SAndrew Thompson 	uss820dci_interrupt_poll(sc);
150702ac6454SAndrew Thompson 	USB_BUS_UNLOCK(&sc->sc_bus);
150802ac6454SAndrew Thompson }
150902ac6454SAndrew Thompson 
151002ac6454SAndrew Thompson /*------------------------------------------------------------------------*
151102ac6454SAndrew Thompson  * at91dci bulk support
151202ac6454SAndrew Thompson  *------------------------------------------------------------------------*/
151302ac6454SAndrew Thompson static void
151402ac6454SAndrew Thompson uss820dci_device_bulk_open(struct usb2_xfer *xfer)
151502ac6454SAndrew Thompson {
151602ac6454SAndrew Thompson 	return;
151702ac6454SAndrew Thompson }
151802ac6454SAndrew Thompson 
151902ac6454SAndrew Thompson static void
152002ac6454SAndrew Thompson uss820dci_device_bulk_close(struct usb2_xfer *xfer)
152102ac6454SAndrew Thompson {
152202ac6454SAndrew Thompson 	uss820dci_device_done(xfer, USB_ERR_CANCELLED);
152302ac6454SAndrew Thompson }
152402ac6454SAndrew Thompson 
152502ac6454SAndrew Thompson static void
152602ac6454SAndrew Thompson uss820dci_device_bulk_enter(struct usb2_xfer *xfer)
152702ac6454SAndrew Thompson {
152802ac6454SAndrew Thompson 	return;
152902ac6454SAndrew Thompson }
153002ac6454SAndrew Thompson 
153102ac6454SAndrew Thompson static void
153202ac6454SAndrew Thompson uss820dci_device_bulk_start(struct usb2_xfer *xfer)
153302ac6454SAndrew Thompson {
153402ac6454SAndrew Thompson 	/* setup TDs */
153502ac6454SAndrew Thompson 	uss820dci_setup_standard_chain(xfer);
153602ac6454SAndrew Thompson 	uss820dci_start_standard_chain(xfer);
153702ac6454SAndrew Thompson }
153802ac6454SAndrew Thompson 
153902ac6454SAndrew Thompson struct usb2_pipe_methods uss820dci_device_bulk_methods =
154002ac6454SAndrew Thompson {
154102ac6454SAndrew Thompson 	.open = uss820dci_device_bulk_open,
154202ac6454SAndrew Thompson 	.close = uss820dci_device_bulk_close,
154302ac6454SAndrew Thompson 	.enter = uss820dci_device_bulk_enter,
154402ac6454SAndrew Thompson 	.start = uss820dci_device_bulk_start,
154502ac6454SAndrew Thompson 	.enter_is_cancelable = 1,
154602ac6454SAndrew Thompson 	.start_is_cancelable = 1,
154702ac6454SAndrew Thompson };
154802ac6454SAndrew Thompson 
154902ac6454SAndrew Thompson /*------------------------------------------------------------------------*
155002ac6454SAndrew Thompson  * at91dci control support
155102ac6454SAndrew Thompson  *------------------------------------------------------------------------*/
155202ac6454SAndrew Thompson static void
155302ac6454SAndrew Thompson uss820dci_device_ctrl_open(struct usb2_xfer *xfer)
155402ac6454SAndrew Thompson {
155502ac6454SAndrew Thompson 	return;
155602ac6454SAndrew Thompson }
155702ac6454SAndrew Thompson 
155802ac6454SAndrew Thompson static void
155902ac6454SAndrew Thompson uss820dci_device_ctrl_close(struct usb2_xfer *xfer)
156002ac6454SAndrew Thompson {
156102ac6454SAndrew Thompson 	uss820dci_device_done(xfer, USB_ERR_CANCELLED);
156202ac6454SAndrew Thompson }
156302ac6454SAndrew Thompson 
156402ac6454SAndrew Thompson static void
156502ac6454SAndrew Thompson uss820dci_device_ctrl_enter(struct usb2_xfer *xfer)
156602ac6454SAndrew Thompson {
156702ac6454SAndrew Thompson 	return;
156802ac6454SAndrew Thompson }
156902ac6454SAndrew Thompson 
157002ac6454SAndrew Thompson static void
157102ac6454SAndrew Thompson uss820dci_device_ctrl_start(struct usb2_xfer *xfer)
157202ac6454SAndrew Thompson {
157302ac6454SAndrew Thompson 	/* setup TDs */
157402ac6454SAndrew Thompson 	uss820dci_setup_standard_chain(xfer);
157502ac6454SAndrew Thompson 	uss820dci_start_standard_chain(xfer);
157602ac6454SAndrew Thompson }
157702ac6454SAndrew Thompson 
157802ac6454SAndrew Thompson struct usb2_pipe_methods uss820dci_device_ctrl_methods =
157902ac6454SAndrew Thompson {
158002ac6454SAndrew Thompson 	.open = uss820dci_device_ctrl_open,
158102ac6454SAndrew Thompson 	.close = uss820dci_device_ctrl_close,
158202ac6454SAndrew Thompson 	.enter = uss820dci_device_ctrl_enter,
158302ac6454SAndrew Thompson 	.start = uss820dci_device_ctrl_start,
158402ac6454SAndrew Thompson 	.enter_is_cancelable = 1,
158502ac6454SAndrew Thompson 	.start_is_cancelable = 1,
158602ac6454SAndrew Thompson };
158702ac6454SAndrew Thompson 
158802ac6454SAndrew Thompson /*------------------------------------------------------------------------*
158902ac6454SAndrew Thompson  * at91dci interrupt support
159002ac6454SAndrew Thompson  *------------------------------------------------------------------------*/
159102ac6454SAndrew Thompson static void
159202ac6454SAndrew Thompson uss820dci_device_intr_open(struct usb2_xfer *xfer)
159302ac6454SAndrew Thompson {
159402ac6454SAndrew Thompson 	return;
159502ac6454SAndrew Thompson }
159602ac6454SAndrew Thompson 
159702ac6454SAndrew Thompson static void
159802ac6454SAndrew Thompson uss820dci_device_intr_close(struct usb2_xfer *xfer)
159902ac6454SAndrew Thompson {
160002ac6454SAndrew Thompson 	uss820dci_device_done(xfer, USB_ERR_CANCELLED);
160102ac6454SAndrew Thompson }
160202ac6454SAndrew Thompson 
160302ac6454SAndrew Thompson static void
160402ac6454SAndrew Thompson uss820dci_device_intr_enter(struct usb2_xfer *xfer)
160502ac6454SAndrew Thompson {
160602ac6454SAndrew Thompson 	return;
160702ac6454SAndrew Thompson }
160802ac6454SAndrew Thompson 
160902ac6454SAndrew Thompson static void
161002ac6454SAndrew Thompson uss820dci_device_intr_start(struct usb2_xfer *xfer)
161102ac6454SAndrew Thompson {
161202ac6454SAndrew Thompson 	/* setup TDs */
161302ac6454SAndrew Thompson 	uss820dci_setup_standard_chain(xfer);
161402ac6454SAndrew Thompson 	uss820dci_start_standard_chain(xfer);
161502ac6454SAndrew Thompson }
161602ac6454SAndrew Thompson 
161702ac6454SAndrew Thompson struct usb2_pipe_methods uss820dci_device_intr_methods =
161802ac6454SAndrew Thompson {
161902ac6454SAndrew Thompson 	.open = uss820dci_device_intr_open,
162002ac6454SAndrew Thompson 	.close = uss820dci_device_intr_close,
162102ac6454SAndrew Thompson 	.enter = uss820dci_device_intr_enter,
162202ac6454SAndrew Thompson 	.start = uss820dci_device_intr_start,
162302ac6454SAndrew Thompson 	.enter_is_cancelable = 1,
162402ac6454SAndrew Thompson 	.start_is_cancelable = 1,
162502ac6454SAndrew Thompson };
162602ac6454SAndrew Thompson 
162702ac6454SAndrew Thompson /*------------------------------------------------------------------------*
162802ac6454SAndrew Thompson  * at91dci full speed isochronous support
162902ac6454SAndrew Thompson  *------------------------------------------------------------------------*/
163002ac6454SAndrew Thompson static void
163102ac6454SAndrew Thompson uss820dci_device_isoc_fs_open(struct usb2_xfer *xfer)
163202ac6454SAndrew Thompson {
163302ac6454SAndrew Thompson 	return;
163402ac6454SAndrew Thompson }
163502ac6454SAndrew Thompson 
163602ac6454SAndrew Thompson static void
163702ac6454SAndrew Thompson uss820dci_device_isoc_fs_close(struct usb2_xfer *xfer)
163802ac6454SAndrew Thompson {
163902ac6454SAndrew Thompson 	uss820dci_device_done(xfer, USB_ERR_CANCELLED);
164002ac6454SAndrew Thompson }
164102ac6454SAndrew Thompson 
164202ac6454SAndrew Thompson static void
164302ac6454SAndrew Thompson uss820dci_device_isoc_fs_enter(struct usb2_xfer *xfer)
164402ac6454SAndrew Thompson {
164502ac6454SAndrew Thompson 	struct uss820dci_softc *sc = USS820_DCI_BUS2SC(xfer->xroot->bus);
164602ac6454SAndrew Thompson 	uint32_t temp;
164702ac6454SAndrew Thompson 	uint32_t nframes;
164802ac6454SAndrew Thompson 
164902ac6454SAndrew Thompson 	DPRINTFN(6, "xfer=%p next=%d nframes=%d\n",
165002ac6454SAndrew Thompson 	    xfer, xfer->pipe->isoc_next, xfer->nframes);
165102ac6454SAndrew Thompson 
165202ac6454SAndrew Thompson 	/* get the current frame index - we don't need the high bits */
165302ac6454SAndrew Thompson 
165402ac6454SAndrew Thompson 	nframes = USS820_READ_1(sc, USS820_SOFL);
165502ac6454SAndrew Thompson 
165602ac6454SAndrew Thompson 	/*
165702ac6454SAndrew Thompson 	 * check if the frame index is within the window where the
165802ac6454SAndrew Thompson 	 * frames will be inserted
165902ac6454SAndrew Thompson 	 */
166002ac6454SAndrew Thompson 	temp = (nframes - xfer->pipe->isoc_next) & USS820_SOFL_MASK;
166102ac6454SAndrew Thompson 
166202ac6454SAndrew Thompson 	if ((xfer->pipe->is_synced == 0) ||
166302ac6454SAndrew Thompson 	    (temp < xfer->nframes)) {
166402ac6454SAndrew Thompson 		/*
166502ac6454SAndrew Thompson 		 * If there is data underflow or the pipe queue is
166602ac6454SAndrew Thompson 		 * empty we schedule the transfer a few frames ahead
166702ac6454SAndrew Thompson 		 * of the current frame position. Else two isochronous
166802ac6454SAndrew Thompson 		 * transfers might overlap.
166902ac6454SAndrew Thompson 		 */
167002ac6454SAndrew Thompson 		xfer->pipe->isoc_next = (nframes + 3) & USS820_SOFL_MASK;
167102ac6454SAndrew Thompson 		xfer->pipe->is_synced = 1;
167202ac6454SAndrew Thompson 		DPRINTFN(3, "start next=%d\n", xfer->pipe->isoc_next);
167302ac6454SAndrew Thompson 	}
167402ac6454SAndrew Thompson 	/*
167502ac6454SAndrew Thompson 	 * compute how many milliseconds the insertion is ahead of the
167602ac6454SAndrew Thompson 	 * current frame position:
167702ac6454SAndrew Thompson 	 */
167802ac6454SAndrew Thompson 	temp = (xfer->pipe->isoc_next - nframes) & USS820_SOFL_MASK;
167902ac6454SAndrew Thompson 
168002ac6454SAndrew Thompson 	/*
168102ac6454SAndrew Thompson 	 * pre-compute when the isochronous transfer will be finished:
168202ac6454SAndrew Thompson 	 */
168302ac6454SAndrew Thompson 	xfer->isoc_time_complete =
168402ac6454SAndrew Thompson 	    usb2_isoc_time_expand(&sc->sc_bus, nframes) + temp +
168502ac6454SAndrew Thompson 	    xfer->nframes;
168602ac6454SAndrew Thompson 
168702ac6454SAndrew Thompson 	/* compute frame number for next insertion */
168802ac6454SAndrew Thompson 	xfer->pipe->isoc_next += xfer->nframes;
168902ac6454SAndrew Thompson 
169002ac6454SAndrew Thompson 	/* setup TDs */
169102ac6454SAndrew Thompson 	uss820dci_setup_standard_chain(xfer);
169202ac6454SAndrew Thompson }
169302ac6454SAndrew Thompson 
169402ac6454SAndrew Thompson static void
169502ac6454SAndrew Thompson uss820dci_device_isoc_fs_start(struct usb2_xfer *xfer)
169602ac6454SAndrew Thompson {
169702ac6454SAndrew Thompson 	/* start TD chain */
169802ac6454SAndrew Thompson 	uss820dci_start_standard_chain(xfer);
169902ac6454SAndrew Thompson }
170002ac6454SAndrew Thompson 
170102ac6454SAndrew Thompson struct usb2_pipe_methods uss820dci_device_isoc_fs_methods =
170202ac6454SAndrew Thompson {
170302ac6454SAndrew Thompson 	.open = uss820dci_device_isoc_fs_open,
170402ac6454SAndrew Thompson 	.close = uss820dci_device_isoc_fs_close,
170502ac6454SAndrew Thompson 	.enter = uss820dci_device_isoc_fs_enter,
170602ac6454SAndrew Thompson 	.start = uss820dci_device_isoc_fs_start,
170702ac6454SAndrew Thompson 	.enter_is_cancelable = 1,
170802ac6454SAndrew Thompson 	.start_is_cancelable = 1,
170902ac6454SAndrew Thompson };
171002ac6454SAndrew Thompson 
171102ac6454SAndrew Thompson /*------------------------------------------------------------------------*
171202ac6454SAndrew Thompson  * at91dci root control support
171302ac6454SAndrew Thompson  *------------------------------------------------------------------------*
171439307315SAndrew Thompson  * Simulate a hardware HUB by handling all the necessary requests.
171502ac6454SAndrew Thompson  *------------------------------------------------------------------------*/
171602ac6454SAndrew Thompson 
171702ac6454SAndrew Thompson static const struct usb2_device_descriptor uss820dci_devd = {
171802ac6454SAndrew Thompson 	.bLength = sizeof(struct usb2_device_descriptor),
171902ac6454SAndrew Thompson 	.bDescriptorType = UDESC_DEVICE,
172002ac6454SAndrew Thompson 	.bcdUSB = {0x00, 0x02},
172102ac6454SAndrew Thompson 	.bDeviceClass = UDCLASS_HUB,
172202ac6454SAndrew Thompson 	.bDeviceSubClass = UDSUBCLASS_HUB,
172302ac6454SAndrew Thompson 	.bDeviceProtocol = UDPROTO_HSHUBSTT,
172402ac6454SAndrew Thompson 	.bMaxPacketSize = 64,
172502ac6454SAndrew Thompson 	.bcdDevice = {0x00, 0x01},
172602ac6454SAndrew Thompson 	.iManufacturer = 1,
172702ac6454SAndrew Thompson 	.iProduct = 2,
172802ac6454SAndrew Thompson 	.bNumConfigurations = 1,
172902ac6454SAndrew Thompson };
173002ac6454SAndrew Thompson 
173102ac6454SAndrew Thompson static const struct usb2_device_qualifier uss820dci_odevd = {
173202ac6454SAndrew Thompson 	.bLength = sizeof(struct usb2_device_qualifier),
173302ac6454SAndrew Thompson 	.bDescriptorType = UDESC_DEVICE_QUALIFIER,
173402ac6454SAndrew Thompson 	.bcdUSB = {0x00, 0x02},
173502ac6454SAndrew Thompson 	.bDeviceClass = UDCLASS_HUB,
173602ac6454SAndrew Thompson 	.bDeviceSubClass = UDSUBCLASS_HUB,
173702ac6454SAndrew Thompson 	.bDeviceProtocol = UDPROTO_FSHUB,
173802ac6454SAndrew Thompson 	.bMaxPacketSize0 = 0,
173902ac6454SAndrew Thompson 	.bNumConfigurations = 0,
174002ac6454SAndrew Thompson };
174102ac6454SAndrew Thompson 
174202ac6454SAndrew Thompson static const struct uss820dci_config_desc uss820dci_confd = {
174302ac6454SAndrew Thompson 	.confd = {
174402ac6454SAndrew Thompson 		.bLength = sizeof(struct usb2_config_descriptor),
174502ac6454SAndrew Thompson 		.bDescriptorType = UDESC_CONFIG,
174602ac6454SAndrew Thompson 		.wTotalLength[0] = sizeof(uss820dci_confd),
174702ac6454SAndrew Thompson 		.bNumInterface = 1,
174802ac6454SAndrew Thompson 		.bConfigurationValue = 1,
174902ac6454SAndrew Thompson 		.iConfiguration = 0,
175002ac6454SAndrew Thompson 		.bmAttributes = UC_SELF_POWERED,
175102ac6454SAndrew Thompson 		.bMaxPower = 0,
175202ac6454SAndrew Thompson 	},
175302ac6454SAndrew Thompson 	.ifcd = {
175402ac6454SAndrew Thompson 		.bLength = sizeof(struct usb2_interface_descriptor),
175502ac6454SAndrew Thompson 		.bDescriptorType = UDESC_INTERFACE,
175602ac6454SAndrew Thompson 		.bNumEndpoints = 1,
175702ac6454SAndrew Thompson 		.bInterfaceClass = UICLASS_HUB,
175802ac6454SAndrew Thompson 		.bInterfaceSubClass = UISUBCLASS_HUB,
175902ac6454SAndrew Thompson 		.bInterfaceProtocol = UIPROTO_HSHUBSTT,
176002ac6454SAndrew Thompson 	},
176102ac6454SAndrew Thompson 
176202ac6454SAndrew Thompson 	.endpd = {
176302ac6454SAndrew Thompson 		.bLength = sizeof(struct usb2_endpoint_descriptor),
176402ac6454SAndrew Thompson 		.bDescriptorType = UDESC_ENDPOINT,
176502ac6454SAndrew Thompson 		.bEndpointAddress = (UE_DIR_IN | USS820_DCI_INTR_ENDPT),
176602ac6454SAndrew Thompson 		.bmAttributes = UE_INTERRUPT,
176702ac6454SAndrew Thompson 		.wMaxPacketSize[0] = 8,
176802ac6454SAndrew Thompson 		.bInterval = 255,
176902ac6454SAndrew Thompson 	},
177002ac6454SAndrew Thompson };
177102ac6454SAndrew Thompson 
177202ac6454SAndrew Thompson static const struct usb2_hub_descriptor_min uss820dci_hubd = {
177302ac6454SAndrew Thompson 	.bDescLength = sizeof(uss820dci_hubd),
177402ac6454SAndrew Thompson 	.bDescriptorType = UDESC_HUB,
177502ac6454SAndrew Thompson 	.bNbrPorts = 1,
177602ac6454SAndrew Thompson 	.wHubCharacteristics[0] =
177702ac6454SAndrew Thompson 	(UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL) & 0xFF,
177802ac6454SAndrew Thompson 	.wHubCharacteristics[1] =
177902ac6454SAndrew Thompson 	(UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL) >> 8,
178002ac6454SAndrew Thompson 	.bPwrOn2PwrGood = 50,
178102ac6454SAndrew Thompson 	.bHubContrCurrent = 0,
178202ac6454SAndrew Thompson 	.DeviceRemovable = {0},		/* port is removable */
178302ac6454SAndrew Thompson };
178402ac6454SAndrew Thompson 
178502ac6454SAndrew Thompson #define	STRING_LANG \
178602ac6454SAndrew Thompson   0x09, 0x04,				/* American English */
178702ac6454SAndrew Thompson 
178802ac6454SAndrew Thompson #define	STRING_VENDOR \
178902ac6454SAndrew Thompson   'A', 0, 'G', 0, 'E', 0, 'R', 0, 'E', 0
179002ac6454SAndrew Thompson 
179102ac6454SAndrew Thompson #define	STRING_PRODUCT \
179202ac6454SAndrew Thompson   'D', 0, 'C', 0, 'I', 0, ' ', 0, 'R', 0, \
179302ac6454SAndrew Thompson   'o', 0, 'o', 0, 't', 0, ' ', 0, 'H', 0, \
179402ac6454SAndrew Thompson   'U', 0, 'B', 0,
179502ac6454SAndrew Thompson 
179602ac6454SAndrew Thompson USB_MAKE_STRING_DESC(STRING_LANG, uss820dci_langtab);
179702ac6454SAndrew Thompson USB_MAKE_STRING_DESC(STRING_VENDOR, uss820dci_vendor);
179802ac6454SAndrew Thompson USB_MAKE_STRING_DESC(STRING_PRODUCT, uss820dci_product);
179902ac6454SAndrew Thompson 
180002ac6454SAndrew Thompson static void
180139307315SAndrew Thompson uss820dci_roothub_exec(struct usb2_bus *bus)
180202ac6454SAndrew Thompson {
180339307315SAndrew Thompson 	struct uss820dci_softc *sc = USS820_DCI_BUS2SC(bus);
180439307315SAndrew Thompson 	struct usb2_sw_transfer *std = &sc->sc_bus.roothub_req;
180502ac6454SAndrew Thompson 	uint16_t value;
180602ac6454SAndrew Thompson 	uint16_t index;
180702ac6454SAndrew Thompson 
180802ac6454SAndrew Thompson 	USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED);
180902ac6454SAndrew Thompson 
181002ac6454SAndrew Thompson 	/* buffer reset */
181102ac6454SAndrew Thompson 	std->ptr = USB_ADD_BYTES(&sc->sc_hub_temp, 0);
181202ac6454SAndrew Thompson 	std->len = 0;
181302ac6454SAndrew Thompson 
181402ac6454SAndrew Thompson 	value = UGETW(std->req.wValue);
181502ac6454SAndrew Thompson 	index = UGETW(std->req.wIndex);
181602ac6454SAndrew Thompson 
181702ac6454SAndrew Thompson 	/* demultiplex the control request */
181802ac6454SAndrew Thompson 
181902ac6454SAndrew Thompson 	switch (std->req.bmRequestType) {
182002ac6454SAndrew Thompson 	case UT_READ_DEVICE:
182102ac6454SAndrew Thompson 		switch (std->req.bRequest) {
182202ac6454SAndrew Thompson 		case UR_GET_DESCRIPTOR:
182302ac6454SAndrew Thompson 			goto tr_handle_get_descriptor;
182402ac6454SAndrew Thompson 		case UR_GET_CONFIG:
182502ac6454SAndrew Thompson 			goto tr_handle_get_config;
182602ac6454SAndrew Thompson 		case UR_GET_STATUS:
182702ac6454SAndrew Thompson 			goto tr_handle_get_status;
182802ac6454SAndrew Thompson 		default:
182902ac6454SAndrew Thompson 			goto tr_stalled;
183002ac6454SAndrew Thompson 		}
183102ac6454SAndrew Thompson 		break;
183202ac6454SAndrew Thompson 
183302ac6454SAndrew Thompson 	case UT_WRITE_DEVICE:
183402ac6454SAndrew Thompson 		switch (std->req.bRequest) {
183502ac6454SAndrew Thompson 		case UR_SET_ADDRESS:
183602ac6454SAndrew Thompson 			goto tr_handle_set_address;
183702ac6454SAndrew Thompson 		case UR_SET_CONFIG:
183802ac6454SAndrew Thompson 			goto tr_handle_set_config;
183902ac6454SAndrew Thompson 		case UR_CLEAR_FEATURE:
184002ac6454SAndrew Thompson 			goto tr_valid;	/* nop */
184102ac6454SAndrew Thompson 		case UR_SET_DESCRIPTOR:
184202ac6454SAndrew Thompson 			goto tr_valid;	/* nop */
184302ac6454SAndrew Thompson 		case UR_SET_FEATURE:
184402ac6454SAndrew Thompson 		default:
184502ac6454SAndrew Thompson 			goto tr_stalled;
184602ac6454SAndrew Thompson 		}
184702ac6454SAndrew Thompson 		break;
184802ac6454SAndrew Thompson 
184902ac6454SAndrew Thompson 	case UT_WRITE_ENDPOINT:
185002ac6454SAndrew Thompson 		switch (std->req.bRequest) {
185102ac6454SAndrew Thompson 		case UR_CLEAR_FEATURE:
185202ac6454SAndrew Thompson 			switch (UGETW(std->req.wValue)) {
185302ac6454SAndrew Thompson 			case UF_ENDPOINT_HALT:
185402ac6454SAndrew Thompson 				goto tr_handle_clear_halt;
185502ac6454SAndrew Thompson 			case UF_DEVICE_REMOTE_WAKEUP:
185602ac6454SAndrew Thompson 				goto tr_handle_clear_wakeup;
185702ac6454SAndrew Thompson 			default:
185802ac6454SAndrew Thompson 				goto tr_stalled;
185902ac6454SAndrew Thompson 			}
186002ac6454SAndrew Thompson 			break;
186102ac6454SAndrew Thompson 		case UR_SET_FEATURE:
186202ac6454SAndrew Thompson 			switch (UGETW(std->req.wValue)) {
186302ac6454SAndrew Thompson 			case UF_ENDPOINT_HALT:
186402ac6454SAndrew Thompson 				goto tr_handle_set_halt;
186502ac6454SAndrew Thompson 			case UF_DEVICE_REMOTE_WAKEUP:
186602ac6454SAndrew Thompson 				goto tr_handle_set_wakeup;
186702ac6454SAndrew Thompson 			default:
186802ac6454SAndrew Thompson 				goto tr_stalled;
186902ac6454SAndrew Thompson 			}
187002ac6454SAndrew Thompson 			break;
187102ac6454SAndrew Thompson 		case UR_SYNCH_FRAME:
187202ac6454SAndrew Thompson 			goto tr_valid;	/* nop */
187302ac6454SAndrew Thompson 		default:
187402ac6454SAndrew Thompson 			goto tr_stalled;
187502ac6454SAndrew Thompson 		}
187602ac6454SAndrew Thompson 		break;
187702ac6454SAndrew Thompson 
187802ac6454SAndrew Thompson 	case UT_READ_ENDPOINT:
187902ac6454SAndrew Thompson 		switch (std->req.bRequest) {
188002ac6454SAndrew Thompson 		case UR_GET_STATUS:
188102ac6454SAndrew Thompson 			goto tr_handle_get_ep_status;
188202ac6454SAndrew Thompson 		default:
188302ac6454SAndrew Thompson 			goto tr_stalled;
188402ac6454SAndrew Thompson 		}
188502ac6454SAndrew Thompson 		break;
188602ac6454SAndrew Thompson 
188702ac6454SAndrew Thompson 	case UT_WRITE_INTERFACE:
188802ac6454SAndrew Thompson 		switch (std->req.bRequest) {
188902ac6454SAndrew Thompson 		case UR_SET_INTERFACE:
189002ac6454SAndrew Thompson 			goto tr_handle_set_interface;
189102ac6454SAndrew Thompson 		case UR_CLEAR_FEATURE:
189202ac6454SAndrew Thompson 			goto tr_valid;	/* nop */
189302ac6454SAndrew Thompson 		case UR_SET_FEATURE:
189402ac6454SAndrew Thompson 		default:
189502ac6454SAndrew Thompson 			goto tr_stalled;
189602ac6454SAndrew Thompson 		}
189702ac6454SAndrew Thompson 		break;
189802ac6454SAndrew Thompson 
189902ac6454SAndrew Thompson 	case UT_READ_INTERFACE:
190002ac6454SAndrew Thompson 		switch (std->req.bRequest) {
190102ac6454SAndrew Thompson 		case UR_GET_INTERFACE:
190202ac6454SAndrew Thompson 			goto tr_handle_get_interface;
190302ac6454SAndrew Thompson 		case UR_GET_STATUS:
190402ac6454SAndrew Thompson 			goto tr_handle_get_iface_status;
190502ac6454SAndrew Thompson 		default:
190602ac6454SAndrew Thompson 			goto tr_stalled;
190702ac6454SAndrew Thompson 		}
190802ac6454SAndrew Thompson 		break;
190902ac6454SAndrew Thompson 
191002ac6454SAndrew Thompson 	case UT_WRITE_CLASS_INTERFACE:
191102ac6454SAndrew Thompson 	case UT_WRITE_VENDOR_INTERFACE:
191202ac6454SAndrew Thompson 		/* XXX forward */
191302ac6454SAndrew Thompson 		break;
191402ac6454SAndrew Thompson 
191502ac6454SAndrew Thompson 	case UT_READ_CLASS_INTERFACE:
191602ac6454SAndrew Thompson 	case UT_READ_VENDOR_INTERFACE:
191702ac6454SAndrew Thompson 		/* XXX forward */
191802ac6454SAndrew Thompson 		break;
191902ac6454SAndrew Thompson 
192002ac6454SAndrew Thompson 	case UT_WRITE_CLASS_DEVICE:
192102ac6454SAndrew Thompson 		switch (std->req.bRequest) {
192202ac6454SAndrew Thompson 		case UR_CLEAR_FEATURE:
192302ac6454SAndrew Thompson 			goto tr_valid;
192402ac6454SAndrew Thompson 		case UR_SET_DESCRIPTOR:
192502ac6454SAndrew Thompson 		case UR_SET_FEATURE:
192602ac6454SAndrew Thompson 			break;
192702ac6454SAndrew Thompson 		default:
192802ac6454SAndrew Thompson 			goto tr_stalled;
192902ac6454SAndrew Thompson 		}
193002ac6454SAndrew Thompson 		break;
193102ac6454SAndrew Thompson 
193202ac6454SAndrew Thompson 	case UT_WRITE_CLASS_OTHER:
193302ac6454SAndrew Thompson 		switch (std->req.bRequest) {
193402ac6454SAndrew Thompson 		case UR_CLEAR_FEATURE:
193502ac6454SAndrew Thompson 			goto tr_handle_clear_port_feature;
193602ac6454SAndrew Thompson 		case UR_SET_FEATURE:
193702ac6454SAndrew Thompson 			goto tr_handle_set_port_feature;
193802ac6454SAndrew Thompson 		case UR_CLEAR_TT_BUFFER:
193902ac6454SAndrew Thompson 		case UR_RESET_TT:
194002ac6454SAndrew Thompson 		case UR_STOP_TT:
194102ac6454SAndrew Thompson 			goto tr_valid;
194202ac6454SAndrew Thompson 
194302ac6454SAndrew Thompson 		default:
194402ac6454SAndrew Thompson 			goto tr_stalled;
194502ac6454SAndrew Thompson 		}
194602ac6454SAndrew Thompson 		break;
194702ac6454SAndrew Thompson 
194802ac6454SAndrew Thompson 	case UT_READ_CLASS_OTHER:
194902ac6454SAndrew Thompson 		switch (std->req.bRequest) {
195002ac6454SAndrew Thompson 		case UR_GET_TT_STATE:
195102ac6454SAndrew Thompson 			goto tr_handle_get_tt_state;
195202ac6454SAndrew Thompson 		case UR_GET_STATUS:
195302ac6454SAndrew Thompson 			goto tr_handle_get_port_status;
195402ac6454SAndrew Thompson 		default:
195502ac6454SAndrew Thompson 			goto tr_stalled;
195602ac6454SAndrew Thompson 		}
195702ac6454SAndrew Thompson 		break;
195802ac6454SAndrew Thompson 
195902ac6454SAndrew Thompson 	case UT_READ_CLASS_DEVICE:
196002ac6454SAndrew Thompson 		switch (std->req.bRequest) {
196102ac6454SAndrew Thompson 		case UR_GET_DESCRIPTOR:
196202ac6454SAndrew Thompson 			goto tr_handle_get_class_descriptor;
196302ac6454SAndrew Thompson 		case UR_GET_STATUS:
196402ac6454SAndrew Thompson 			goto tr_handle_get_class_status;
196502ac6454SAndrew Thompson 
196602ac6454SAndrew Thompson 		default:
196702ac6454SAndrew Thompson 			goto tr_stalled;
196802ac6454SAndrew Thompson 		}
196902ac6454SAndrew Thompson 		break;
197002ac6454SAndrew Thompson 	default:
197102ac6454SAndrew Thompson 		goto tr_stalled;
197202ac6454SAndrew Thompson 	}
197302ac6454SAndrew Thompson 	goto tr_valid;
197402ac6454SAndrew Thompson 
197502ac6454SAndrew Thompson tr_handle_get_descriptor:
197602ac6454SAndrew Thompson 	switch (value >> 8) {
197702ac6454SAndrew Thompson 	case UDESC_DEVICE:
197802ac6454SAndrew Thompson 		if (value & 0xff) {
197902ac6454SAndrew Thompson 			goto tr_stalled;
198002ac6454SAndrew Thompson 		}
198102ac6454SAndrew Thompson 		std->len = sizeof(uss820dci_devd);
198202ac6454SAndrew Thompson 		std->ptr = USB_ADD_BYTES(&uss820dci_devd, 0);
198302ac6454SAndrew Thompson 		goto tr_valid;
198402ac6454SAndrew Thompson 	case UDESC_CONFIG:
198502ac6454SAndrew Thompson 		if (value & 0xff) {
198602ac6454SAndrew Thompson 			goto tr_stalled;
198702ac6454SAndrew Thompson 		}
198802ac6454SAndrew Thompson 		std->len = sizeof(uss820dci_confd);
198902ac6454SAndrew Thompson 		std->ptr = USB_ADD_BYTES(&uss820dci_confd, 0);
199002ac6454SAndrew Thompson 		goto tr_valid;
199102ac6454SAndrew Thompson 	case UDESC_STRING:
199202ac6454SAndrew Thompson 		switch (value & 0xff) {
199302ac6454SAndrew Thompson 		case 0:		/* Language table */
199402ac6454SAndrew Thompson 			std->len = sizeof(uss820dci_langtab);
199502ac6454SAndrew Thompson 			std->ptr = USB_ADD_BYTES(&uss820dci_langtab, 0);
199602ac6454SAndrew Thompson 			goto tr_valid;
199702ac6454SAndrew Thompson 
199802ac6454SAndrew Thompson 		case 1:		/* Vendor */
199902ac6454SAndrew Thompson 			std->len = sizeof(uss820dci_vendor);
200002ac6454SAndrew Thompson 			std->ptr = USB_ADD_BYTES(&uss820dci_vendor, 0);
200102ac6454SAndrew Thompson 			goto tr_valid;
200202ac6454SAndrew Thompson 
200302ac6454SAndrew Thompson 		case 2:		/* Product */
200402ac6454SAndrew Thompson 			std->len = sizeof(uss820dci_product);
200502ac6454SAndrew Thompson 			std->ptr = USB_ADD_BYTES(&uss820dci_product, 0);
200602ac6454SAndrew Thompson 			goto tr_valid;
200702ac6454SAndrew Thompson 		default:
200802ac6454SAndrew Thompson 			break;
200902ac6454SAndrew Thompson 		}
201002ac6454SAndrew Thompson 		break;
201102ac6454SAndrew Thompson 	default:
201202ac6454SAndrew Thompson 		goto tr_stalled;
201302ac6454SAndrew Thompson 	}
201402ac6454SAndrew Thompson 	goto tr_stalled;
201502ac6454SAndrew Thompson 
201602ac6454SAndrew Thompson tr_handle_get_config:
201702ac6454SAndrew Thompson 	std->len = 1;
201802ac6454SAndrew Thompson 	sc->sc_hub_temp.wValue[0] = sc->sc_conf;
201902ac6454SAndrew Thompson 	goto tr_valid;
202002ac6454SAndrew Thompson 
202102ac6454SAndrew Thompson tr_handle_get_status:
202202ac6454SAndrew Thompson 	std->len = 2;
202302ac6454SAndrew Thompson 	USETW(sc->sc_hub_temp.wValue, UDS_SELF_POWERED);
202402ac6454SAndrew Thompson 	goto tr_valid;
202502ac6454SAndrew Thompson 
202602ac6454SAndrew Thompson tr_handle_set_address:
202702ac6454SAndrew Thompson 	if (value & 0xFF00) {
202802ac6454SAndrew Thompson 		goto tr_stalled;
202902ac6454SAndrew Thompson 	}
203002ac6454SAndrew Thompson 	sc->sc_rt_addr = value;
203102ac6454SAndrew Thompson 	goto tr_valid;
203202ac6454SAndrew Thompson 
203302ac6454SAndrew Thompson tr_handle_set_config:
203402ac6454SAndrew Thompson 	if (value >= 2) {
203502ac6454SAndrew Thompson 		goto tr_stalled;
203602ac6454SAndrew Thompson 	}
203702ac6454SAndrew Thompson 	sc->sc_conf = value;
203802ac6454SAndrew Thompson 	goto tr_valid;
203902ac6454SAndrew Thompson 
204002ac6454SAndrew Thompson tr_handle_get_interface:
204102ac6454SAndrew Thompson 	std->len = 1;
204202ac6454SAndrew Thompson 	sc->sc_hub_temp.wValue[0] = 0;
204302ac6454SAndrew Thompson 	goto tr_valid;
204402ac6454SAndrew Thompson 
204502ac6454SAndrew Thompson tr_handle_get_tt_state:
204602ac6454SAndrew Thompson tr_handle_get_class_status:
204702ac6454SAndrew Thompson tr_handle_get_iface_status:
204802ac6454SAndrew Thompson tr_handle_get_ep_status:
204902ac6454SAndrew Thompson 	std->len = 2;
205002ac6454SAndrew Thompson 	USETW(sc->sc_hub_temp.wValue, 0);
205102ac6454SAndrew Thompson 	goto tr_valid;
205202ac6454SAndrew Thompson 
205302ac6454SAndrew Thompson tr_handle_set_halt:
205402ac6454SAndrew Thompson tr_handle_set_interface:
205502ac6454SAndrew Thompson tr_handle_set_wakeup:
205602ac6454SAndrew Thompson tr_handle_clear_wakeup:
205702ac6454SAndrew Thompson tr_handle_clear_halt:
205802ac6454SAndrew Thompson 	goto tr_valid;
205902ac6454SAndrew Thompson 
206002ac6454SAndrew Thompson tr_handle_clear_port_feature:
206102ac6454SAndrew Thompson 	if (index != 1) {
206202ac6454SAndrew Thompson 		goto tr_stalled;
206302ac6454SAndrew Thompson 	}
206402ac6454SAndrew Thompson 	DPRINTFN(9, "UR_CLEAR_PORT_FEATURE on port %d\n", index);
206502ac6454SAndrew Thompson 
206602ac6454SAndrew Thompson 	switch (value) {
206702ac6454SAndrew Thompson 	case UHF_PORT_SUSPEND:
206802ac6454SAndrew Thompson 		uss820dci_wakeup_peer(sc);
206902ac6454SAndrew Thompson 		break;
207002ac6454SAndrew Thompson 
207102ac6454SAndrew Thompson 	case UHF_PORT_ENABLE:
207202ac6454SAndrew Thompson 		sc->sc_flags.port_enabled = 0;
207302ac6454SAndrew Thompson 		break;
207402ac6454SAndrew Thompson 
207502ac6454SAndrew Thompson 	case UHF_PORT_TEST:
207602ac6454SAndrew Thompson 	case UHF_PORT_INDICATOR:
207702ac6454SAndrew Thompson 	case UHF_C_PORT_ENABLE:
207802ac6454SAndrew Thompson 	case UHF_C_PORT_OVER_CURRENT:
207902ac6454SAndrew Thompson 	case UHF_C_PORT_RESET:
208002ac6454SAndrew Thompson 		/* nops */
208102ac6454SAndrew Thompson 		break;
208202ac6454SAndrew Thompson 	case UHF_PORT_POWER:
208302ac6454SAndrew Thompson 		sc->sc_flags.port_powered = 0;
208402ac6454SAndrew Thompson 		uss820dci_pull_down(sc);
208502ac6454SAndrew Thompson 		break;
208602ac6454SAndrew Thompson 	case UHF_C_PORT_CONNECTION:
208702ac6454SAndrew Thompson 		sc->sc_flags.change_connect = 0;
208802ac6454SAndrew Thompson 		break;
208902ac6454SAndrew Thompson 	case UHF_C_PORT_SUSPEND:
209002ac6454SAndrew Thompson 		sc->sc_flags.change_suspend = 0;
209102ac6454SAndrew Thompson 		break;
209202ac6454SAndrew Thompson 	default:
209302ac6454SAndrew Thompson 		std->err = USB_ERR_IOERROR;
209402ac6454SAndrew Thompson 		goto done;
209502ac6454SAndrew Thompson 	}
209602ac6454SAndrew Thompson 	goto tr_valid;
209702ac6454SAndrew Thompson 
209802ac6454SAndrew Thompson tr_handle_set_port_feature:
209902ac6454SAndrew Thompson 	if (index != 1) {
210002ac6454SAndrew Thompson 		goto tr_stalled;
210102ac6454SAndrew Thompson 	}
210202ac6454SAndrew Thompson 	DPRINTFN(9, "UR_SET_PORT_FEATURE\n");
210302ac6454SAndrew Thompson 
210402ac6454SAndrew Thompson 	switch (value) {
210502ac6454SAndrew Thompson 	case UHF_PORT_ENABLE:
210602ac6454SAndrew Thompson 		sc->sc_flags.port_enabled = 1;
210702ac6454SAndrew Thompson 		break;
210802ac6454SAndrew Thompson 	case UHF_PORT_SUSPEND:
210902ac6454SAndrew Thompson 	case UHF_PORT_RESET:
211002ac6454SAndrew Thompson 	case UHF_PORT_TEST:
211102ac6454SAndrew Thompson 	case UHF_PORT_INDICATOR:
211202ac6454SAndrew Thompson 		/* nops */
211302ac6454SAndrew Thompson 		break;
211402ac6454SAndrew Thompson 	case UHF_PORT_POWER:
211502ac6454SAndrew Thompson 		sc->sc_flags.port_powered = 1;
211602ac6454SAndrew Thompson 		break;
211702ac6454SAndrew Thompson 	default:
211802ac6454SAndrew Thompson 		std->err = USB_ERR_IOERROR;
211902ac6454SAndrew Thompson 		goto done;
212002ac6454SAndrew Thompson 	}
212102ac6454SAndrew Thompson 	goto tr_valid;
212202ac6454SAndrew Thompson 
212302ac6454SAndrew Thompson tr_handle_get_port_status:
212402ac6454SAndrew Thompson 
212502ac6454SAndrew Thompson 	DPRINTFN(9, "UR_GET_PORT_STATUS\n");
212602ac6454SAndrew Thompson 
212702ac6454SAndrew Thompson 	if (index != 1) {
212802ac6454SAndrew Thompson 		goto tr_stalled;
212902ac6454SAndrew Thompson 	}
213002ac6454SAndrew Thompson 	if (sc->sc_flags.status_vbus) {
213102ac6454SAndrew Thompson 		uss820dci_pull_up(sc);
213202ac6454SAndrew Thompson 	} else {
213302ac6454SAndrew Thompson 		uss820dci_pull_down(sc);
213402ac6454SAndrew Thompson 	}
213502ac6454SAndrew Thompson 
213602ac6454SAndrew Thompson 	/* Select FULL-speed and Device Side Mode */
213702ac6454SAndrew Thompson 
213802ac6454SAndrew Thompson 	value = UPS_PORT_MODE_DEVICE;
213902ac6454SAndrew Thompson 
214002ac6454SAndrew Thompson 	if (sc->sc_flags.port_powered) {
214102ac6454SAndrew Thompson 		value |= UPS_PORT_POWER;
214202ac6454SAndrew Thompson 	}
214302ac6454SAndrew Thompson 	if (sc->sc_flags.port_enabled) {
214402ac6454SAndrew Thompson 		value |= UPS_PORT_ENABLED;
214502ac6454SAndrew Thompson 	}
214602ac6454SAndrew Thompson 	if (sc->sc_flags.status_vbus &&
214702ac6454SAndrew Thompson 	    sc->sc_flags.status_bus_reset) {
214802ac6454SAndrew Thompson 		value |= UPS_CURRENT_CONNECT_STATUS;
214902ac6454SAndrew Thompson 	}
215002ac6454SAndrew Thompson 	if (sc->sc_flags.status_suspend) {
215102ac6454SAndrew Thompson 		value |= UPS_SUSPEND;
215202ac6454SAndrew Thompson 	}
215302ac6454SAndrew Thompson 	USETW(sc->sc_hub_temp.ps.wPortStatus, value);
215402ac6454SAndrew Thompson 
215502ac6454SAndrew Thompson 	value = 0;
215602ac6454SAndrew Thompson 
215702ac6454SAndrew Thompson 	if (sc->sc_flags.change_connect) {
215802ac6454SAndrew Thompson 		value |= UPS_C_CONNECT_STATUS;
215902ac6454SAndrew Thompson 	}
216002ac6454SAndrew Thompson 	if (sc->sc_flags.change_suspend) {
216102ac6454SAndrew Thompson 		value |= UPS_C_SUSPEND;
216202ac6454SAndrew Thompson 	}
216302ac6454SAndrew Thompson 	USETW(sc->sc_hub_temp.ps.wPortChange, value);
216402ac6454SAndrew Thompson 	std->len = sizeof(sc->sc_hub_temp.ps);
216502ac6454SAndrew Thompson 	goto tr_valid;
216602ac6454SAndrew Thompson 
216702ac6454SAndrew Thompson tr_handle_get_class_descriptor:
216802ac6454SAndrew Thompson 	if (value & 0xFF) {
216902ac6454SAndrew Thompson 		goto tr_stalled;
217002ac6454SAndrew Thompson 	}
217102ac6454SAndrew Thompson 	std->ptr = USB_ADD_BYTES(&uss820dci_hubd, 0);
217202ac6454SAndrew Thompson 	std->len = sizeof(uss820dci_hubd);
217302ac6454SAndrew Thompson 	goto tr_valid;
217402ac6454SAndrew Thompson 
217502ac6454SAndrew Thompson tr_stalled:
217602ac6454SAndrew Thompson 	std->err = USB_ERR_STALLED;
217702ac6454SAndrew Thompson tr_valid:
217802ac6454SAndrew Thompson done:
217902ac6454SAndrew Thompson 	return;
218002ac6454SAndrew Thompson }
218102ac6454SAndrew Thompson 
218202ac6454SAndrew Thompson static void
218302ac6454SAndrew Thompson uss820dci_xfer_setup(struct usb2_setup_params *parm)
218402ac6454SAndrew Thompson {
218502ac6454SAndrew Thompson 	const struct usb2_hw_ep_profile *pf;
218602ac6454SAndrew Thompson 	struct uss820dci_softc *sc;
218702ac6454SAndrew Thompson 	struct usb2_xfer *xfer;
218802ac6454SAndrew Thompson 	void *last_obj;
218902ac6454SAndrew Thompson 	uint32_t ntd;
219002ac6454SAndrew Thompson 	uint32_t n;
219102ac6454SAndrew Thompson 	uint8_t ep_no;
219202ac6454SAndrew Thompson 
219302ac6454SAndrew Thompson 	sc = USS820_DCI_BUS2SC(parm->udev->bus);
219402ac6454SAndrew Thompson 	xfer = parm->curr_xfer;
219502ac6454SAndrew Thompson 
219602ac6454SAndrew Thompson 	/*
219702ac6454SAndrew Thompson 	 * NOTE: This driver does not use any of the parameters that
219802ac6454SAndrew Thompson 	 * are computed from the following values. Just set some
219902ac6454SAndrew Thompson 	 * reasonable dummies:
220002ac6454SAndrew Thompson 	 */
220102ac6454SAndrew Thompson 	parm->hc_max_packet_size = 0x500;
220202ac6454SAndrew Thompson 	parm->hc_max_packet_count = 1;
220302ac6454SAndrew Thompson 	parm->hc_max_frame_size = 0x500;
220402ac6454SAndrew Thompson 
220502ac6454SAndrew Thompson 	usb2_transfer_setup_sub(parm);
220602ac6454SAndrew Thompson 
220702ac6454SAndrew Thompson 	/*
220802ac6454SAndrew Thompson 	 * compute maximum number of TDs
220902ac6454SAndrew Thompson 	 */
221002ac6454SAndrew Thompson 	if (parm->methods == &uss820dci_device_ctrl_methods) {
221102ac6454SAndrew Thompson 
221202ac6454SAndrew Thompson 		ntd = xfer->nframes + 1 /* STATUS */ + 1 /* SYNC */ ;
221302ac6454SAndrew Thompson 
221402ac6454SAndrew Thompson 	} else if (parm->methods == &uss820dci_device_bulk_methods) {
221502ac6454SAndrew Thompson 
221602ac6454SAndrew Thompson 		ntd = xfer->nframes + 1 /* SYNC */ ;
221702ac6454SAndrew Thompson 
221802ac6454SAndrew Thompson 	} else if (parm->methods == &uss820dci_device_intr_methods) {
221902ac6454SAndrew Thompson 
222002ac6454SAndrew Thompson 		ntd = xfer->nframes + 1 /* SYNC */ ;
222102ac6454SAndrew Thompson 
222202ac6454SAndrew Thompson 	} else if (parm->methods == &uss820dci_device_isoc_fs_methods) {
222302ac6454SAndrew Thompson 
222402ac6454SAndrew Thompson 		ntd = xfer->nframes + 1 /* SYNC */ ;
222502ac6454SAndrew Thompson 
222602ac6454SAndrew Thompson 	} else {
222702ac6454SAndrew Thompson 
222802ac6454SAndrew Thompson 		ntd = 0;
222902ac6454SAndrew Thompson 	}
223002ac6454SAndrew Thompson 
223102ac6454SAndrew Thompson 	/*
223202ac6454SAndrew Thompson 	 * check if "usb2_transfer_setup_sub" set an error
223302ac6454SAndrew Thompson 	 */
223402ac6454SAndrew Thompson 	if (parm->err) {
223502ac6454SAndrew Thompson 		return;
223602ac6454SAndrew Thompson 	}
223702ac6454SAndrew Thompson 	/*
223802ac6454SAndrew Thompson 	 * allocate transfer descriptors
223902ac6454SAndrew Thompson 	 */
224002ac6454SAndrew Thompson 	last_obj = NULL;
224102ac6454SAndrew Thompson 
224202ac6454SAndrew Thompson 	/*
224302ac6454SAndrew Thompson 	 * get profile stuff
224402ac6454SAndrew Thompson 	 */
224502ac6454SAndrew Thompson 	if (ntd) {
224602ac6454SAndrew Thompson 
224702ac6454SAndrew Thompson 		ep_no = xfer->endpoint & UE_ADDR;
224802ac6454SAndrew Thompson 		uss820dci_get_hw_ep_profile(parm->udev, &pf, ep_no);
224902ac6454SAndrew Thompson 
225002ac6454SAndrew Thompson 		if (pf == NULL) {
225102ac6454SAndrew Thompson 			/* should not happen */
225202ac6454SAndrew Thompson 			parm->err = USB_ERR_INVAL;
225302ac6454SAndrew Thompson 			return;
225402ac6454SAndrew Thompson 		}
225502ac6454SAndrew Thompson 	} else {
225602ac6454SAndrew Thompson 		ep_no = 0;
225702ac6454SAndrew Thompson 		pf = NULL;
225802ac6454SAndrew Thompson 	}
225902ac6454SAndrew Thompson 
226002ac6454SAndrew Thompson 	/* align data */
226102ac6454SAndrew Thompson 	parm->size[0] += ((-parm->size[0]) & (USB_HOST_ALIGN - 1));
226202ac6454SAndrew Thompson 
226302ac6454SAndrew Thompson 	for (n = 0; n != ntd; n++) {
226402ac6454SAndrew Thompson 
226502ac6454SAndrew Thompson 		struct uss820dci_td *td;
226602ac6454SAndrew Thompson 
226702ac6454SAndrew Thompson 		if (parm->buf) {
226802ac6454SAndrew Thompson 
226902ac6454SAndrew Thompson 			td = USB_ADD_BYTES(parm->buf, parm->size[0]);
227002ac6454SAndrew Thompson 
227102ac6454SAndrew Thompson 			/* init TD */
227202ac6454SAndrew Thompson 			td->io_tag = sc->sc_io_tag;
227302ac6454SAndrew Thompson 			td->io_hdl = sc->sc_io_hdl;
227402ac6454SAndrew Thompson 			td->max_packet_size = xfer->max_packet_size;
227502ac6454SAndrew Thompson 			td->rx_stat_reg = USS820_GET_REG(sc, USS820_RXSTAT);
227602ac6454SAndrew Thompson 			td->tx_stat_reg = USS820_GET_REG(sc, USS820_TXSTAT);
227702ac6454SAndrew Thompson 			td->rx_flag_reg = USS820_GET_REG(sc, USS820_RXFLG);
227802ac6454SAndrew Thompson 			td->tx_flag_reg = USS820_GET_REG(sc, USS820_TXFLG);
227902ac6454SAndrew Thompson 			td->rx_fifo_reg = USS820_GET_REG(sc, USS820_RXDAT);
228002ac6454SAndrew Thompson 			td->tx_fifo_reg = USS820_GET_REG(sc, USS820_TXDAT);
228102ac6454SAndrew Thompson 			td->rx_count_low_reg = USS820_GET_REG(sc, USS820_RXCNTL);
228202ac6454SAndrew Thompson 			td->rx_count_high_reg = USS820_GET_REG(sc, USS820_RXCNTH);
228302ac6454SAndrew Thompson 			td->tx_count_low_reg = USS820_GET_REG(sc, USS820_TXCNTL);
228402ac6454SAndrew Thompson 			td->tx_count_high_reg = USS820_GET_REG(sc, USS820_TXCNTH);
228502ac6454SAndrew Thompson 			td->rx_cntl_reg = USS820_GET_REG(sc, USS820_RXCON);
228602ac6454SAndrew Thompson 			td->tx_cntl_reg = USS820_GET_REG(sc, USS820_TXCON);
228702ac6454SAndrew Thompson 			td->pend_reg = USS820_GET_REG(sc, USS820_PEND);
228802ac6454SAndrew Thompson 			td->ep_reg = USS820_GET_REG(sc, USS820_EPINDEX);
228902ac6454SAndrew Thompson 			td->ep_index = ep_no;
229002ac6454SAndrew Thompson 			if (pf->support_multi_buffer &&
229102ac6454SAndrew Thompson 			    (parm->methods != &uss820dci_device_ctrl_methods)) {
229202ac6454SAndrew Thompson 				td->support_multi_buffer = 1;
229302ac6454SAndrew Thompson 			}
229402ac6454SAndrew Thompson 			td->obj_next = last_obj;
229502ac6454SAndrew Thompson 
229602ac6454SAndrew Thompson 			last_obj = td;
229702ac6454SAndrew Thompson 		}
229802ac6454SAndrew Thompson 		parm->size[0] += sizeof(*td);
229902ac6454SAndrew Thompson 	}
230002ac6454SAndrew Thompson 
230102ac6454SAndrew Thompson 	xfer->td_start[0] = last_obj;
230202ac6454SAndrew Thompson }
230302ac6454SAndrew Thompson 
230402ac6454SAndrew Thompson static void
230502ac6454SAndrew Thompson uss820dci_xfer_unsetup(struct usb2_xfer *xfer)
230602ac6454SAndrew Thompson {
230702ac6454SAndrew Thompson 	return;
230802ac6454SAndrew Thompson }
230902ac6454SAndrew Thompson 
231002ac6454SAndrew Thompson static void
231102ac6454SAndrew Thompson uss820dci_pipe_init(struct usb2_device *udev, struct usb2_endpoint_descriptor *edesc,
231202ac6454SAndrew Thompson     struct usb2_pipe *pipe)
231302ac6454SAndrew Thompson {
231402ac6454SAndrew Thompson 	struct uss820dci_softc *sc = USS820_DCI_BUS2SC(udev->bus);
231502ac6454SAndrew Thompson 
231602ac6454SAndrew Thompson 	DPRINTFN(2, "pipe=%p, addr=%d, endpt=%d, mode=%d (%d)\n",
231702ac6454SAndrew Thompson 	    pipe, udev->address,
231802ac6454SAndrew Thompson 	    edesc->bEndpointAddress, udev->flags.usb2_mode,
231902ac6454SAndrew Thompson 	    sc->sc_rt_addr);
232002ac6454SAndrew Thompson 
232139307315SAndrew Thompson 	if (udev->device_index != sc->sc_rt_addr) {
232202ac6454SAndrew Thompson 
232302ac6454SAndrew Thompson 		if (udev->flags.usb2_mode != USB_MODE_DEVICE) {
232402ac6454SAndrew Thompson 			/* not supported */
232502ac6454SAndrew Thompson 			return;
232602ac6454SAndrew Thompson 		}
232702ac6454SAndrew Thompson 		if (udev->speed != USB_SPEED_FULL) {
232802ac6454SAndrew Thompson 			/* not supported */
232902ac6454SAndrew Thompson 			return;
233002ac6454SAndrew Thompson 		}
233102ac6454SAndrew Thompson 		switch (edesc->bmAttributes & UE_XFERTYPE) {
233202ac6454SAndrew Thompson 		case UE_CONTROL:
233302ac6454SAndrew Thompson 			pipe->methods = &uss820dci_device_ctrl_methods;
233402ac6454SAndrew Thompson 			break;
233502ac6454SAndrew Thompson 		case UE_INTERRUPT:
233602ac6454SAndrew Thompson 			pipe->methods = &uss820dci_device_intr_methods;
233702ac6454SAndrew Thompson 			break;
233802ac6454SAndrew Thompson 		case UE_ISOCHRONOUS:
233902ac6454SAndrew Thompson 			pipe->methods = &uss820dci_device_isoc_fs_methods;
234002ac6454SAndrew Thompson 			break;
234102ac6454SAndrew Thompson 		case UE_BULK:
234202ac6454SAndrew Thompson 			pipe->methods = &uss820dci_device_bulk_methods;
234302ac6454SAndrew Thompson 			break;
234402ac6454SAndrew Thompson 		default:
234502ac6454SAndrew Thompson 			/* do nothing */
234602ac6454SAndrew Thompson 			break;
234702ac6454SAndrew Thompson 		}
234802ac6454SAndrew Thompson 	}
234902ac6454SAndrew Thompson }
235002ac6454SAndrew Thompson 
235102ac6454SAndrew Thompson struct usb2_bus_methods uss820dci_bus_methods =
235202ac6454SAndrew Thompson {
235302ac6454SAndrew Thompson 	.pipe_init = &uss820dci_pipe_init,
235402ac6454SAndrew Thompson 	.xfer_setup = &uss820dci_xfer_setup,
235502ac6454SAndrew Thompson 	.xfer_unsetup = &uss820dci_xfer_unsetup,
235602ac6454SAndrew Thompson 	.get_hw_ep_profile = &uss820dci_get_hw_ep_profile,
235702ac6454SAndrew Thompson 	.set_stall = &uss820dci_set_stall,
235802ac6454SAndrew Thompson 	.clear_stall = &uss820dci_clear_stall,
235939307315SAndrew Thompson 	.roothub_exec = &uss820dci_roothub_exec,
236002ac6454SAndrew Thompson };
2361