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auvitek.c revision 1.3
      1 /* $NetBSD: auvitek.c,v 1.3 2010/12/28 04:02:33 jmcneill 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 1.3 2010/12/28 04:02:33 jmcneill 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 void	auvitek_childdet(device_t, device_t);
     56 static int	auvitek_activate(device_t, enum devact);
     57 
     58 CFATTACH_DECL2_NEW(auvitek, sizeof(struct auvitek_softc),
     59     auvitek_match, auvitek_attach, auvitek_detach, auvitek_activate,
     60     NULL, auvitek_childdet);
     61 
     62 static const struct {
     63 	uint16_t		vendor;
     64 	uint16_t		product;
     65 	const char *		name;
     66 	enum auvitek_board	board;
     67 } auvitek_devices[] = {
     68 	{ 0x2040, 0x7200,
     69 	  "WinTV HVR-950Q", AUVITEK_BOARD_HVR_950Q },
     70 	{ 0x2040, 0x7240,
     71 	  "WinTV HVR-850", AUVITEK_BOARD_HVR_850 },
     72 };
     73 
     74 static int
     75 auvitek_match(device_t parent, cfdata_t match, void *opaque)
     76 {
     77 	struct usb_attach_arg *uaa = opaque;
     78 	unsigned int i;
     79 
     80 	for (i = 0; i < __arraycount(auvitek_devices); i++) {
     81 		if (auvitek_devices[i].vendor == uaa->vendor &&
     82 		    auvitek_devices[i].product == uaa->product)
     83 			return UMATCH_VENDOR_PRODUCT;
     84 	}
     85 
     86 	return UMATCH_NONE;
     87 }
     88 
     89 static void
     90 auvitek_attach(device_t parent, device_t self, void *opaque)
     91 {
     92 	struct auvitek_softc *sc = device_private(self);
     93 	struct usb_attach_arg *uaa = opaque;
     94 	usbd_device_handle dev = uaa->device;
     95 	usb_endpoint_descriptor_t *ed;
     96 	usbd_status err;
     97 	unsigned int i;
     98 	uint8_t nep;
     99 
    100 	aprint_naive("\n");
    101 	aprint_normal(": AU0828\n");
    102 
    103 	sc->sc_dev = self;
    104 	sc->sc_udev = dev;
    105 	sc->sc_uport = uaa->port;
    106 
    107 	for (i = 0; i < __arraycount(auvitek_devices); i++) {
    108 		if (auvitek_devices[i].vendor == uaa->vendor &&
    109 		    auvitek_devices[i].product == uaa->product)
    110 			break;
    111 	}
    112 	KASSERT(i != __arraycount(auvitek_devices));
    113 	sc->sc_descr = auvitek_devices[i].name;
    114 	sc->sc_board = auvitek_devices[i].board;
    115 
    116 	sc->sc_dying = sc->sc_running = 0;
    117 
    118 	mutex_init(&sc->sc_subdev_lock, MUTEX_DEFAULT, IPL_VM);
    119 
    120 	err = usbd_set_config_index(dev, 0, 1);
    121 	if (err) {
    122 		aprint_error_dev(self, "couldn't set config index: %s\n",
    123 		    usbd_errstr(err));
    124 		return;
    125 	}
    126 	err = usbd_device2interface_handle(dev, 0, &sc->sc_iface);
    127 	if (err) {
    128 		aprint_error_dev(self, "couldn't get interface handle: %s\n",
    129 		    usbd_errstr(err));
    130 		return;
    131 	}
    132 
    133 	err = usbd_set_interface(sc->sc_iface, AUVITEK_XFER_ALTNO);
    134 	if (err) {
    135 		aprint_error_dev(self, "couldn't set interface: %s\n",
    136 		    usbd_errstr(err));
    137 		return;
    138 	}
    139 
    140 	nep = 0;
    141 	usbd_endpoint_count(sc->sc_iface, &nep);
    142 	sc->sc_ax.ax_sc = sc;
    143 	sc->sc_ax.ax_endpt = -1;
    144 	for (i = 0; i < nep; i++) {
    145 		int dir, type;
    146 
    147 		ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i);
    148 		if (ed == NULL) {
    149 			aprint_error_dev(self,
    150 			    "couldn't read endpoint descriptor %d\n", i);
    151 			continue;
    152 		}
    153 
    154 		dir = UE_GET_DIR(ed->bEndpointAddress);
    155 		type = UE_GET_XFERTYPE(ed->bmAttributes);
    156 
    157 		if (dir == UE_DIR_IN && type == UE_ISOCHRONOUS) {
    158 			sc->sc_ax.ax_endpt = ed->bEndpointAddress;
    159 			sc->sc_ax.ax_maxpktlen =
    160 			    UE_GET_SIZE(UGETW(ed->wMaxPacketSize)) *
    161 			    (UE_GET_TRANS(UGETW(ed->wMaxPacketSize)) + 1);
    162 			break;
    163 		}
    164 	}
    165 	err = usbd_set_interface(sc->sc_iface, 0);
    166 	if (err) {
    167 		aprint_error_dev(self, "couldn't set interface: %s\n",
    168 		    usbd_errstr(err));
    169 		sc->sc_dying = 1;
    170 		return;
    171 	}
    172 	if (sc->sc_ax.ax_endpt == -1) {
    173 		aprint_error_dev(self, "couldn't find isoc endpoint\n");
    174 		sc->sc_dying = 1;
    175 		return;
    176 	}
    177 	if (sc->sc_ax.ax_maxpktlen == 0) {
    178 		aprint_error_dev(self, "couldn't determine packet length\n");
    179 		sc->sc_dying = 1;
    180 		return;
    181 	}
    182 
    183 	aprint_debug_dev(self, "isoc endpoint 0x%02x size %d\n",
    184 	    sc->sc_ax.ax_endpt, sc->sc_ax.ax_maxpktlen);
    185 
    186 	auvitek_board_init(sc);
    187 
    188 	auvitek_i2c_attach(sc);
    189 
    190 	sc->sc_au8522 = au8522_open(self, &sc->sc_i2c, 0x8e >> 1);
    191 	if (sc->sc_au8522 == NULL) {
    192 		aprint_error_dev(sc->sc_dev, "couldn't initialize decoder\n");
    193 		sc->sc_dying = 1;
    194 		return;
    195 	}
    196 
    197 	auvitek_video_attach(sc);
    198 	auvitek_audio_attach(sc);
    199 }
    200 
    201 static int
    202 auvitek_detach(device_t self, int flags)
    203 {
    204 	struct auvitek_softc *sc = device_private(self);
    205 
    206 	sc->sc_dying = 1;
    207 
    208 	pmf_device_deregister(self);
    209 
    210 	auvitek_audio_detach(sc, flags);
    211 	auvitek_video_detach(sc, flags);
    212 
    213 	if (sc->sc_xc5k)
    214 		xc5k_close(sc->sc_xc5k);
    215 	if (sc->sc_au8522)
    216 		au8522_close(sc->sc_au8522);
    217 
    218 	auvitek_i2c_detach(sc, flags);
    219 
    220 	mutex_destroy(&sc->sc_subdev_lock);
    221 
    222 	return 0;
    223 }
    224 
    225 int
    226 auvitek_activate(device_t self, enum devact act)
    227 {
    228 	struct auvitek_softc *sc = device_private(self);
    229 
    230 	switch (act) {
    231 	case DVACT_DEACTIVATE:
    232 		sc->sc_dying = 1;
    233 		return 0;
    234 	default:
    235 		return 0;
    236 	}
    237 }
    238 
    239 static void
    240 auvitek_childdet(device_t self, device_t child)
    241 {
    242 	struct auvitek_softc *sc = device_private(self);
    243 
    244 	auvitek_video_childdet(sc, child);
    245 }
    246 
    247 uint8_t
    248 auvitek_read_1(struct auvitek_softc *sc, uint16_t reg)
    249 {
    250 	usb_device_request_t req;
    251 	usbd_status err;
    252 	int actlen;
    253 	uint8_t data;
    254 
    255 	req.bmRequestType = UT_READ_VENDOR_DEVICE;
    256 	req.bRequest = AU0828_CMD_REQUEST_IN;
    257 	USETW(req.wValue, 0);
    258 	USETW(req.wIndex, reg);
    259 	USETW(req.wLength, sizeof(data));
    260 
    261 	err = usbd_do_request_flags(sc->sc_udev, &req, &data, 0,
    262 	    &actlen, USBD_DEFAULT_TIMEOUT);
    263 	if (err)
    264 		printf("%s: read failed: %s\n", device_xname(sc->sc_dev),
    265 		    usbd_errstr(err));
    266 
    267 	return data;
    268 }
    269 
    270 void
    271 auvitek_write_1(struct auvitek_softc *sc, uint16_t reg, uint8_t data)
    272 {
    273 	usb_device_request_t req;
    274 	usbd_status err;
    275 	int actlen;
    276 
    277 	req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
    278 	req.bRequest = AU0828_CMD_REQUEST_OUT;
    279 	USETW(req.wValue, data);
    280 	USETW(req.wIndex, reg);
    281 	USETW(req.wLength, 0);
    282 
    283 	err = usbd_do_request_flags(sc->sc_udev, &req, NULL, 0,
    284 	    &actlen, USBD_DEFAULT_TIMEOUT);
    285 	if (err)
    286 		printf("%s: write failed: %s\n", device_xname(sc->sc_dev),
    287 		    usbd_errstr(err));
    288 }
    289 
    290 MODULE(MODULE_CLASS_DRIVER, auvitek, "au8522,xc5k");
    291 
    292 #ifdef _MODULE
    293 #include "ioconf.c"
    294 #endif
    295 
    296 static int
    297 auvitek_modcmd(modcmd_t cmd, void *opaque)
    298 {
    299 	switch (cmd) {
    300 	case MODULE_CMD_INIT:
    301 #ifdef _MODULE
    302 		return config_init_component(cfdriver_ioconf_auvitek,
    303 		    cfattach_ioconf_auvitek, cfdata_ioconf_auvitek);
    304 #else
    305 		return 0;
    306 #endif
    307 	case MODULE_CMD_FINI:
    308 #ifdef _MODULE
    309 		return config_fini_component(cfdriver_ioconf_auvitek,
    310 		    cfattach_ioconf_auvitek, cfdata_ioconf_auvitek);
    311 #else
    312 		return 0;
    313 #endif
    314 	default:
    315 		return ENOTTY;
    316 	}
    317 }
    318