1 // SPDX-License-Identifier: GPL-2.0
3  * Copyright (c) 2013-2023, Intel Corporation. All rights reserved.
10 #include <linux/device.h>
49  * number_of_connections - determine whether an client be on the bus
55  * @cldev: me clients device
59 	if (cldev->me_cl->props.max_number_of_connections > 1)  in number_of_connections()
60 		cldev->do_match = 0;  in number_of_connections()
64  * blacklist - blacklist a client from the bus
66  * @cldev: me clients device
70 	cldev->do_match = 0;  in blacklist()
74  * whitelist - forcefully whitelist client
76  * @cldev: me clients device
80 	cldev->do_match = 1;  in whitelist()
122 	req->hdr.group_id = MKHI_FWCAPS_GROUP_ID;  in mei_osver()
123 	req->hdr.command = MKHI_FWCAPS_SET_OS_VER_APP_RULE_CMD;  in mei_osver()
125 	fwcaps = (struct mkhi_fwcaps *)req->data;  in mei_osver()
127 	fwcaps->id.rule_type = 0x0;  in mei_osver()
128 	fwcaps->id.feature_id = MKHI_FEATURE_PTT;  in mei_osver()
129 	fwcaps->len = sizeof(*os_ver);  in mei_osver()
130 	os_ver = (struct mei_os_ver *)fwcaps->data;  in mei_osver()
131 	os_ver->os_type = OSTYPE_LINUX;  in mei_osver()
133 	return __mei_cl_send_timeout(cldev->cl, buf, size, 0, mode, MKHI_SEND_MAX_TIMEOUT_MSEC);  in mei_osver()
153 	ret = __mei_cl_send_timeout(cldev->cl, (u8 *)&req, sizeof(req), 0,  in mei_fwver()
156 		dev_info(&cldev->dev, "Could not send ReqFWVersion cmd ret = %d\n", ret);  in mei_fwver()
161 	bytes_recv = __mei_cl_recv(cldev->cl, buf, sizeof(buf), NULL, 0,  in mei_fwver()
162 				   cldev->bus->timeouts.mkhi_recv);  in mei_fwver()
165 		 * Should be at least one version block,  in mei_fwver()
168 		dev_info(&cldev->dev, "Could not read FW version ret = %d\n", bytes_recv);  in mei_fwver()
169 		return -EIO;  in mei_fwver()
173 	fwver = (struct mkhi_fw_ver *)rsp->data;  in mei_fwver()
174 	memset(cldev->bus->fw_ver, 0, sizeof(cldev->bus->fw_ver));  in mei_fwver()
178 		dev_dbg(&cldev->dev, "FW version%d %d:%d.%d.%d.%d\n",  in mei_fwver()
179 			i, fwver->ver[i].platform,  in mei_fwver()
180 			fwver->ver[i].major, fwver->ver[i].minor,  in mei_fwver()
181 			fwver->ver[i].hotfix, fwver->ver[i].buildno);  in mei_fwver()
183 		cldev->bus->fw_ver[i].platform = fwver->ver[i].platform;  in mei_fwver()
184 		cldev->bus->fw_ver[i].major = fwver->ver[i].major;  in mei_fwver()
185 		cldev->bus->fw_ver[i].minor = fwver->ver[i].minor;  in mei_fwver()
186 		cldev->bus->fw_ver[i].hotfix = fwver->ver[i].hotfix;  in mei_fwver()
187 		cldev->bus->fw_ver[i].buildno = fwver->ver[i].buildno;  in mei_fwver()
189 	cldev->bus->fw_ver_received = 1;  in mei_fwver()
205 	dev_dbg(&cldev->dev, "Sending memory ready command\n");  in mei_gfx_memory_ready()
206 	return __mei_cl_send_timeout(cldev->cl, (u8 *)&req, sizeof(req), 0,  in mei_gfx_memory_ready()
215 	if (!cldev->bus->fw_f_fw_ver_supported &&  in mei_mkhi_fix()
216 	    !cldev->bus->hbm_f_os_supported)  in mei_mkhi_fix()
223 	if (cldev->bus->fw_f_fw_ver_supported) {  in mei_mkhi_fix()
226 			dev_info(&cldev->dev, "FW version command failed %d\n",  in mei_mkhi_fix()
230 	if (cldev->bus->hbm_f_os_supported) {  in mei_mkhi_fix()
233 			dev_info(&cldev->dev, "OS version command failed %d\n",  in mei_mkhi_fix()
245 	 * No need to fill in version if it is already filled in by the fix address client.  in mei_gsc_mkhi_ver()
247 	if (!cldev->bus->fw_f_fw_ver_supported || cldev->bus->fw_ver_received)  in mei_gsc_mkhi_ver()
256 		dev_info(&cldev->dev, "FW version command failed %d\n", ret);  in mei_gsc_mkhi_ver()
265 	if (!cldev->bus->fw_f_fw_ver_supported &&  in mei_gsc_mkhi_fix_ver()
266 	    cldev->bus->pxp_mode != MEI_DEV_PXP_INIT)  in mei_gsc_mkhi_fix_ver()
273 	if (cldev->bus->pxp_mode == MEI_DEV_PXP_INIT) {  in mei_gsc_mkhi_fix_ver()
276 			dev_err(&cldev->dev, "memory ready command failed %d\n", ret);  in mei_gsc_mkhi_fix_ver()
278 			dev_dbg(&cldev->dev, "memory ready command sent\n");  in mei_gsc_mkhi_fix_ver()
279 			cldev->bus->pxp_mode = MEI_DEV_PXP_SETUP;  in mei_gsc_mkhi_fix_ver()
287 		dev_info(&cldev->dev, "FW version command failed %d\n",  in mei_gsc_mkhi_fix_ver()
294  * mei_wd - wd client on the bus, change protocol version
297  * @cldev: me clients device
301 #include "hw-me-regs.h"
304 	struct pci_dev *pdev = to_pci_dev(cldev->dev.parent);  in mei_wd()
306 	if (pdev->device == MEI_DEV_ID_WPT_LP ||  in mei_wd()
307 	    pdev->device == MEI_DEV_ID_SPT ||  in mei_wd()
308 	    pdev->device == MEI_DEV_ID_SPT_H)  in mei_wd()
309 		cldev->me_cl->props.protocol_version = 0x2;  in mei_wd()
311 	cldev->do_match = 1;  in mei_wd()
361  * mei_nfc_if_version - get NFC interface version
364  * @ver: NFC interface version to be filled in
382 	bus = cl->dev;  in mei_nfc_if_version()
384 	WARN_ON(mutex_is_locked(&bus->device_lock));  in mei_nfc_if_version()
389 		dev_err(bus->dev, "Could not send IF version cmd ret = %d\n", ret);  in mei_nfc_if_version()
398 		return -ENOMEM;  in mei_nfc_if_version()
404 		dev_err(bus->dev, "Could not read IF version ret = %d\n", bytes_recv);  in mei_nfc_if_version()
405 		ret = -EIO;  in mei_nfc_if_version()
409 	memcpy(ver, reply->data, sizeof(*ver));  in mei_nfc_if_version()
411 	dev_info(bus->dev, "NFC MEI VERSION: IVN 0x%x Vendor ID 0x%x Type 0x%x\n",  in mei_nfc_if_version()
412 		 ver->fw_ivn, ver->vendor_id, ver->radio_type);  in mei_nfc_if_version()
420  * mei_nfc_radio_name - derive nfc radio name from the interface version
422  * @ver: NFC radio version
429 	if (ver->vendor_id == MEI_NFC_VENDOR_INSIDE) {  in mei_nfc_radio_name()
430 		if (ver->radio_type == MEI_NFC_VENDOR_INSIDE_UREAD)  in mei_nfc_radio_name()
434 	if (ver->vendor_id == MEI_NFC_VENDOR_NXP) {  in mei_nfc_radio_name()
435 		if (ver->radio_type == MEI_NFC_VENDOR_NXP_PN544)  in mei_nfc_radio_name()
443  * mei_nfc - The nfc fixup function. The function retrieves nfc radio
444  *    name and set is as device attribute so we can load
445  *    the proper device driver for it
447  * @cldev: me client device (nfc)
458 	bus = cldev->bus;  in mei_nfc()
460 	mutex_lock(&bus->device_lock);  in mei_nfc()
466 		dev_err(bus->dev, "nfc hook alloc failed %d\n", ret);  in mei_nfc()
472 		ret = -ENOTTY;  in mei_nfc()
473 		dev_err(bus->dev, "Cannot find nfc info %d\n", ret);  in mei_nfc()
479 		dev_err(&cldev->dev, "Can't connect to the NFC INFO ME ret = %d\n",  in mei_nfc()
484 	mutex_unlock(&bus->device_lock);  in mei_nfc()
493 		ret = -ENOENT;  in mei_nfc()
494 		dev_err(&cldev->dev, "Can't get the NFC interface version ret = %d\n",  in mei_nfc()
499 	dev_dbg(bus->dev, "nfc radio %s\n", radio_name);  in mei_nfc()
500 	strscpy(cldev->name, radio_name, sizeof(cldev->name));  in mei_nfc()
503 	mutex_lock(&bus->device_lock);  in mei_nfc()
505 		dev_err(bus->dev, "Can't disconnect the NFC INFO ME\n");  in mei_nfc()
511 	mutex_unlock(&bus->device_lock);  in mei_nfc()
516 		cldev->do_match = 0;  in mei_nfc()
518 	dev_dbg(bus->dev, "end of fixup match = %d\n", cldev->do_match);  in mei_nfc()
522  * vt_support - enable on bus clients with vtag support
524  * @cldev: me clients device
528 	if (cldev->me_cl->props.vt_supported == 1)  in vt_support()
529 		cldev->do_match = 1;  in vt_support()
533  * pxp_is_ready - enable bus client if pxp is ready
535  * @cldev: me clients device
539 	struct mei_device *bus = cldev->bus;  in pxp_is_ready()
541 	switch (bus->pxp_mode) {  in pxp_is_ready()
544 		cldev->do_match = 1;  in pxp_is_ready()
547 		cldev->do_match = 0;  in pxp_is_ready()
572  * mei_cl_bus_dev_fixup - run fixup handlers
574  * @cldev: me client device
579 	const uuid_le *uuid = mei_me_cl_uuid(cldev->me_cl);  in mei_cl_bus_dev_fixup()
585 		if (uuid_le_cmp(f->uuid, MEI_UUID_ANY) == 0 ||  in mei_cl_bus_dev_fixup()
586 		    uuid_le_cmp(f->uuid, *uuid) == 0)  in mei_cl_bus_dev_fixup()
587 			f->hook(cldev);  in mei_cl_bus_dev_fixup()