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      1 /* $NetBSD: auvitek.c,v 1.13 2022/03/13 12:49:36 riastradh Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2010 Jared D. McNeill <jmcneill (at) invisible.ca>
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 /*
     30  * Auvitek AU0828 USB controller
     31  */
     32 
     33 #include <sys/cdefs.h>
     34 __KERNEL_RCSID(0, "$NetBSD: auvitek.c,v 1.13 2022/03/13 12:49:36 riastradh Exp $");
     35 
     36 #include <sys/types.h>
     37 #include <sys/param.h>
     38 #include <sys/systm.h>
     39 #include <sys/device.h>
     40 #include <sys/conf.h>
     41 #include <sys/bus.h>
     42 #include <sys/module.h>
     43 
     44 #include <dev/usb/usb.h>
     45 #include <dev/usb/usbdi.h>
     46 #include <dev/usb/usbdi_util.h>
     47 #include <dev/usb/usbdevs.h>
     48 
     49 #include <dev/usb/auvitekreg.h>
     50 #include <dev/usb/auvitekvar.h>
     51 
     52 static int	auvitek_match(device_t, cfdata_t, void *);
     53 static void	auvitek_attach(device_t, device_t, void *);
     54 static int	auvitek_detach(device_t, int);
     55 static int	auvitek_rescan(device_t, const char *, const int *);
     56 static void	auvitek_childdet(device_t, device_t);
     57 static int	auvitek_activate(device_t, enum devact);
     58 
     59 CFATTACH_DECL2_NEW(auvitek, sizeof(struct auvitek_softc),
     60     auvitek_match, auvitek_attach, auvitek_detach, auvitek_activate,
     61     auvitek_rescan, auvitek_childdet);
     62 
     63 static const struct {
     64 	uint16_t		vendor;
     65 	uint16_t		product;
     66 	const char *		name;
     67 	enum auvitek_board	board;
     68 } auvitek_devices[] = {
     69 	{ 0x2040, 0x7200,
     70 	  "WinTV HVR-950Q", AUVITEK_BOARD_HVR_950Q },
     71 	{ 0x2040, 0x7240,
     72 	  "WinTV HVR-850", AUVITEK_BOARD_HVR_850 },
     73 };
     74 
     75 static int
     76 auvitek_match(device_t parent, cfdata_t match, void *opaque)
     77 {
     78 	struct usb_attach_arg *uaa = opaque;
     79 	unsigned int i;
     80 
     81 	for (i = 0; i < __arraycount(auvitek_devices); i++) {
     82 		if (auvitek_devices[i].vendor == uaa->uaa_vendor &&
     83 		    auvitek_devices[i].product == uaa->uaa_product)
     84 			return UMATCH_VENDOR_PRODUCT;
     85 	}
     86 
     87 	return UMATCH_NONE;
     88 }
     89 
     90 static void
     91 auvitek_attach(device_t parent, device_t self, void *opaque)
     92 {
     93 	struct auvitek_softc *sc = device_private(self);
     94 	struct usb_attach_arg *uaa = opaque;
     95 	struct usbd_device *dev = uaa->uaa_device;
     96 	usb_endpoint_descriptor_t *ed;
     97 	usbd_status err;
     98 	unsigned int i;
     99 	uint8_t nep;
    100 
    101 	aprint_naive("\n");
    102 	aprint_normal(": AU0828\n");
    103 
    104 	sc->sc_dev = self;
    105 	sc->sc_udev = dev;
    106 	sc->sc_uport = uaa->uaa_port;
    107 
    108 	for (i = 0; i < __arraycount(auvitek_devices); i++) {
    109 		if (auvitek_devices[i].vendor == uaa->uaa_vendor &&
    110 		    auvitek_devices[i].product == uaa->uaa_product)
    111 			break;
    112 	}
    113 	KASSERT(i != __arraycount(auvitek_devices));
    114 	sc->sc_descr = auvitek_devices[i].name;
    115 	sc->sc_board = auvitek_devices[i].board;
    116 
    117 	sc->sc_dying = sc->sc_running = 0;
    118 
    119 	mutex_init(&sc->sc_subdev_lock, MUTEX_DEFAULT, IPL_NONE);
    120 
    121 	err = usbd_set_config_index(dev, 0, 1);
    122 	if (err) {
    123 		aprint_error_dev(self, "couldn't set config index: %s\n",
    124 		    usbd_errstr(err));
    125 		return;
    126 	}
    127 	err = usbd_device2interface_handle(dev, 0, &sc->sc_isoc_iface);
    128 	if (err) {
    129 		aprint_error_dev(self, "couldn't get interface handle: %s\n",
    130 		    usbd_errstr(err));
    131 		return;
    132 	}
    133 	err = usbd_device2interface_handle(dev, 3, &sc->sc_bulk_iface);
    134 	if (err) {
    135 		aprint_error_dev(self, "couldn't get interface handle: %s\n",
    136 		    usbd_errstr(err));
    137 		return;
    138 	}
    139 
    140 	sc->sc_ax.ax_sc = sc->sc_ab.ab_sc = sc;
    141 	sc->sc_ax.ax_endpt = sc->sc_ab.ab_endpt = -1;
    142 
    143 	err = usbd_set_interface(sc->sc_isoc_iface, AUVITEK_XFER_ALTNO);
    144 	if (err) {
    145 		aprint_error_dev(self, "couldn't set interface: %s\n",
    146 		    usbd_errstr(err));
    147 		return;
    148 	}
    149 
    150 	nep = 0;
    151 	usbd_endpoint_count(sc->sc_isoc_iface, &nep);
    152 	for (i = 0; i < nep; i++) {
    153 		int dir, type;
    154 
    155 		ed = usbd_interface2endpoint_descriptor(sc->sc_isoc_iface, i);
    156 		if (ed == NULL) {
    157 			aprint_error_dev(self,
    158 			    "couldn't read endpoint descriptor %d\n", i);
    159 			continue;
    160 		}
    161 
    162 		dir = UE_GET_DIR(ed->bEndpointAddress);
    163 		type = UE_GET_XFERTYPE(ed->bmAttributes);
    164 
    165 		if (dir == UE_DIR_IN && type == UE_ISOCHRONOUS &&
    166 		    sc->sc_ax.ax_endpt == -1) {
    167 			sc->sc_ax.ax_endpt = ed->bEndpointAddress;
    168 			sc->sc_ax.ax_maxpktlen =
    169 			    UE_GET_SIZE(UGETW(ed->wMaxPacketSize)) *
    170 			    (UE_GET_TRANS(UGETW(ed->wMaxPacketSize)) + 1);
    171 		}
    172 	}
    173 
    174 	err = usbd_set_interface(sc->sc_isoc_iface, 0);
    175 	if (err) {
    176 		aprint_error_dev(self, "couldn't set interface: %s\n",
    177 		    usbd_errstr(err));
    178 		return;
    179 	}
    180 
    181 	if (sc->sc_ax.ax_endpt == -1) {
    182 		aprint_error_dev(self, "couldn't find isoc endpoint\n");
    183 		sc->sc_dying = 1;
    184 		return;
    185 	}
    186 	if (sc->sc_ax.ax_maxpktlen == 0) {
    187 		aprint_error_dev(self, "couldn't determine packet length\n");
    188 		sc->sc_dying = 1;
    189 		return;
    190 	}
    191 
    192 	aprint_debug_dev(self, "isoc endpoint 0x%02x size %d\n",
    193 	    sc->sc_ax.ax_endpt, sc->sc_ax.ax_maxpktlen);
    194 
    195 	nep = 0;
    196 	usbd_endpoint_count(sc->sc_bulk_iface, &nep);
    197 	for (i = 0; i < nep; i++) {
    198 		int dir, type;
    199 
    200 		ed = usbd_interface2endpoint_descriptor(sc->sc_bulk_iface, i);
    201 		if (ed == NULL) {
    202 			aprint_error_dev(self,
    203 			    "couldn't read endpoint descriptor %d\n", i);
    204 			continue;
    205 		}
    206 
    207 		dir = UE_GET_DIR(ed->bEndpointAddress);
    208 		type = UE_GET_XFERTYPE(ed->bmAttributes);
    209 
    210 		if (dir == UE_DIR_IN && type == UE_BULK &&
    211 		    sc->sc_ab.ab_endpt == -1) {
    212 			sc->sc_ab.ab_endpt = ed->bEndpointAddress;
    213 		}
    214 	}
    215 
    216 	if (sc->sc_ab.ab_endpt == -1) {
    217 		aprint_error_dev(self, "couldn't find bulk endpoint\n");
    218 		sc->sc_dying = 1;
    219 		return;
    220 	}
    221 
    222 	aprint_debug_dev(self, "bulk endpoint 0x%02x size %d\n",
    223 	    sc->sc_ab.ab_endpt, AUVITEK_BULK_BUFLEN);
    224 
    225 	auvitek_board_init(sc);
    226 
    227 	auvitek_i2c_attach(sc);
    228 
    229 	sc->sc_au8522 = au8522_open(self, &sc->sc_i2c, 0x8e >> 1,
    230 	    auvitek_board_get_if_frequency(sc));
    231 	if (sc->sc_au8522 == NULL) {
    232 		aprint_error_dev(sc->sc_dev, "couldn't initialize decoder\n");
    233 		sc->sc_dying = 1;
    234 		return;
    235 	}
    236 
    237 	config_mountroot(self, auvitek_attach_tuner);
    238 
    239 	auvitek_video_attach(sc);
    240 	auvitek_audio_attach(sc);
    241 	auvitek_dtv_attach(sc);
    242 }
    243 
    244 void
    245 auvitek_attach_tuner(device_t self)
    246 {
    247 	struct auvitek_softc *sc = device_private(self);
    248 
    249 	mutex_enter(&sc->sc_subdev_lock);
    250 	if (sc->sc_xc5k == NULL) {
    251 		sc->sc_xc5k = xc5k_open(sc->sc_dev, &sc->sc_i2c, 0xc2 >> 1,
    252 		    auvitek_board_tuner_reset, sc,
    253 		    auvitek_board_get_if_frequency(sc),
    254 		    FE_ATSC);
    255 	}
    256 	mutex_exit(&sc->sc_subdev_lock);
    257 }
    258 
    259 static int
    260 auvitek_detach(device_t self, int flags)
    261 {
    262 	struct auvitek_softc *sc = device_private(self);
    263 	int error;
    264 
    265 	sc->sc_dying = 1;
    266 
    267 	error = config_detach_children(self, flags);
    268 	if (error) {
    269 		/*
    270 		 * XXX Should ask autoconf to block open with
    271 		 * .d_cfdriver until we're done, instead of setting
    272 		 * this and then rolling it back.
    273 		 */
    274 		sc->sc_dying = 0;
    275 		return error;
    276 	}
    277 
    278 	pmf_device_deregister(self);
    279 
    280 	auvitek_dtv_detach(sc, flags);
    281 	auvitek_audio_detach(sc, flags);
    282 	auvitek_video_detach(sc, flags);
    283 
    284 	if (sc->sc_xc5k)
    285 		xc5k_close(sc->sc_xc5k);
    286 	if (sc->sc_au8522)
    287 		au8522_close(sc->sc_au8522);
    288 
    289 	auvitek_i2c_detach(sc, flags);
    290 
    291 	mutex_destroy(&sc->sc_subdev_lock);
    292 
    293 	return 0;
    294 }
    295 
    296 int
    297 auvitek_activate(device_t self, enum devact act)
    298 {
    299 	struct auvitek_softc *sc = device_private(self);
    300 
    301 	switch (act) {
    302 	case DVACT_DEACTIVATE:
    303 		sc->sc_dying = 1;
    304 		return 0;
    305 	default:
    306 		return 0;
    307 	}
    308 }
    309 
    310 static int
    311 auvitek_rescan(device_t self, const char *ifattr, const int *locs)
    312 {
    313 	struct auvitek_softc *sc = device_private(self);
    314 
    315 	auvitek_video_rescan(sc, ifattr, locs);
    316 	auvitek_dtv_rescan(sc, ifattr, locs);
    317 	auvitek_i2c_rescan(sc, ifattr, locs);
    318 
    319 	return 0;
    320 }
    321 
    322 static void
    323 auvitek_childdet(device_t self, device_t child)
    324 {
    325 	struct auvitek_softc *sc = device_private(self);
    326 
    327 	auvitek_video_childdet(sc, child);
    328 	auvitek_audio_childdet(sc, child);
    329 	auvitek_dtv_childdet(sc, child);
    330 }
    331 
    332 uint8_t
    333 auvitek_read_1(struct auvitek_softc *sc, uint16_t reg)
    334 {
    335 	usb_device_request_t req;
    336 	usbd_status err;
    337 	int actlen;
    338 	uint8_t data;
    339 
    340 	req.bmRequestType = UT_READ_VENDOR_DEVICE;
    341 	req.bRequest = AU0828_CMD_REQUEST_IN;
    342 	USETW(req.wValue, 0);
    343 	USETW(req.wIndex, reg);
    344 	USETW(req.wLength, sizeof(data));
    345 
    346 	KERNEL_LOCK(1, curlwp);
    347 	err = usbd_do_request_flags(sc->sc_udev, &req, &data, 0,
    348 	    &actlen, USBD_DEFAULT_TIMEOUT);
    349 	KERNEL_UNLOCK_ONE(curlwp);
    350 
    351 	if (err)
    352 		printf("%s: read failed: %s\n", device_xname(sc->sc_dev),
    353 		    usbd_errstr(err));
    354 
    355 	return data;
    356 }
    357 
    358 void
    359 auvitek_write_1(struct auvitek_softc *sc, uint16_t reg, uint8_t data)
    360 {
    361 	usb_device_request_t req;
    362 	usbd_status err;
    363 	int actlen;
    364 
    365 	req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
    366 	req.bRequest = AU0828_CMD_REQUEST_OUT;
    367 	USETW(req.wValue, data);
    368 	USETW(req.wIndex, reg);
    369 	USETW(req.wLength, 0);
    370 
    371 	KERNEL_LOCK(1, curlwp);
    372 	err = usbd_do_request_flags(sc->sc_udev, &req, NULL, 0,
    373 	    &actlen, USBD_DEFAULT_TIMEOUT);
    374 	KERNEL_UNLOCK_ONE(curlwp);
    375 
    376 	if (err)
    377 		printf("%s: write failed: %s\n", device_xname(sc->sc_dev),
    378 		    usbd_errstr(err));
    379 }
    380 
    381 MODULE(MODULE_CLASS_DRIVER, auvitek, "au8522,xc5k");
    382 
    383 #ifdef _MODULE
    384 #include "ioconf.c"
    385 #endif
    386 
    387 static int
    388 auvitek_modcmd(modcmd_t cmd, void *opaque)
    389 {
    390 	switch (cmd) {
    391 	case MODULE_CMD_INIT:
    392 #ifdef _MODULE
    393 		return config_init_component(cfdriver_ioconf_auvitek,
    394 		    cfattach_ioconf_auvitek, cfdata_ioconf_auvitek);
    395 #else
    396 		return 0;
    397 #endif
    398 	case MODULE_CMD_FINI:
    399 #ifdef _MODULE
    400 		return config_fini_component(cfdriver_ioconf_auvitek,
    401 		    cfattach_ioconf_auvitek, cfdata_ioconf_auvitek);
    402 #else
    403 		return 0;
    404 #endif
    405 	default:
    406 		return ENOTTY;
    407 	}
    408 }
    409