Steven Toth | 265a651 | 2008-04-18 21:34:00 -0300 | [diff] [blame^] | 1 | /* |
| 2 | * Driver for the Auvitek USB bridge |
| 3 | * |
| 4 | * Copyright (c) 2008 Steven Toth <stoth@hauppauge.com> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 20 | */ |
| 21 | |
| 22 | #include <linux/module.h> |
| 23 | #include <linux/init.h> |
| 24 | #include <linux/device.h> |
| 25 | #include <linux/suspend.h> |
| 26 | #include <media/v4l2-common.h> |
| 27 | |
| 28 | #include "au0828.h" |
| 29 | |
| 30 | #include "au8522.h" |
| 31 | #include "xc5000.h" |
| 32 | |
| 33 | DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); |
| 34 | |
| 35 | unsigned int dvb_debug = 1; |
| 36 | |
| 37 | #define _dbg(level, fmt, arg...)\ |
| 38 | do { if (dvb_debug >= level)\ |
| 39 | printk(KERN_DEBUG "%s/0: " fmt, DRIVER_NAME, ## arg);\ |
| 40 | } while (0) |
| 41 | |
| 42 | static struct au8522_config hauppauge_hvr950q_config = { |
| 43 | .demod_address = 0x8e >> 1, |
| 44 | .status_mode = AU8522_DEMODLOCKING, |
| 45 | }; |
| 46 | |
| 47 | static struct xc5000_config hauppauge_hvr950q_tunerconfig = { |
| 48 | .i2c_address = 0x61, |
| 49 | .if_khz = 6000, |
| 50 | .tuner_callback = au0828_tuner_callback |
| 51 | }; |
| 52 | |
| 53 | /*-------------------------------------------------------------------*/ |
| 54 | static void urb_completion(struct urb *purb) |
| 55 | { |
| 56 | u8 *ptr; |
| 57 | struct au0828_dev *dev = purb->context; |
| 58 | int ptype = usb_pipetype(purb->pipe); |
| 59 | |
| 60 | if (dev->urb_streaming == 0) |
| 61 | return; |
| 62 | |
| 63 | if (ptype != PIPE_BULK) { |
| 64 | printk(KERN_ERR "%s() Unsupported URB type %d\n", __FUNCTION__, ptype); |
| 65 | return; |
| 66 | } |
| 67 | |
| 68 | ptr = (u8 *)purb->transfer_buffer; |
| 69 | |
| 70 | /* Feed the transport payload into the kernel demux */ |
| 71 | dvb_dmx_swfilter_packets(&dev->dvb.demux, purb->transfer_buffer, purb->actual_length / 188); |
| 72 | |
| 73 | /* Clean the buffer before we requeue */ |
| 74 | memset(purb->transfer_buffer, 0, URB_BUFSIZE); |
| 75 | |
| 76 | /* Requeue URB */ |
| 77 | usb_submit_urb(purb, GFP_ATOMIC); |
| 78 | } |
| 79 | |
| 80 | static int stop_urb_transfer(struct au0828_dev *dev) |
| 81 | { |
| 82 | int i; |
| 83 | |
| 84 | printk(KERN_INFO "%s()\n", __FUNCTION__); |
| 85 | |
| 86 | /* FIXME: Do we need to free the transfer_buffers? */ |
| 87 | for (i = 0; i < URB_COUNT; i++) { |
| 88 | usb_kill_urb(dev->urbs[i]); |
| 89 | kfree(dev->urbs[i]->transfer_buffer); |
| 90 | usb_free_urb(dev->urbs[i]); |
| 91 | } |
| 92 | |
| 93 | dev->urb_streaming = 0; |
| 94 | |
| 95 | return 0; |
| 96 | } |
| 97 | |
| 98 | #define _AU0828_BULKPIPE 0x83 |
| 99 | #define _BULKPIPESIZE 0xe522 |
| 100 | |
| 101 | static int start_urb_transfer(struct au0828_dev *dev) |
| 102 | { |
| 103 | struct urb *purb; |
| 104 | int i, ret = -ENOMEM; |
| 105 | unsigned int pipe = usb_rcvbulkpipe(dev->usbdev, _AU0828_BULKPIPE); |
| 106 | int pipesize = usb_maxpacket(dev->usbdev, pipe, usb_pipeout(pipe)); |
| 107 | int packets = _BULKPIPESIZE / pipesize; |
| 108 | int transfer_buflen = packets * pipesize; |
| 109 | |
| 110 | printk(KERN_INFO "%s() transfer_buflen = %d\n", __FUNCTION__, transfer_buflen); |
| 111 | |
| 112 | if (dev->urb_streaming) { |
| 113 | printk("%s: iso xfer already running!\n", __FUNCTION__); |
| 114 | return 0; |
| 115 | } |
| 116 | |
| 117 | for (i = 0; i < URB_COUNT; i++) { |
| 118 | |
| 119 | dev->urbs[i] = usb_alloc_urb(0, GFP_KERNEL); |
| 120 | if (!dev->urbs[i]) { |
| 121 | goto err; |
| 122 | } |
| 123 | |
| 124 | purb = dev->urbs[i]; |
| 125 | |
| 126 | purb->transfer_buffer = kzalloc(URB_BUFSIZE, GFP_KERNEL); |
| 127 | if (!purb->transfer_buffer) { |
| 128 | usb_free_urb(purb); |
| 129 | dev->urbs[i] = 0; |
| 130 | goto err; |
| 131 | } |
| 132 | |
| 133 | purb->status = -EINPROGRESS; |
| 134 | usb_fill_bulk_urb(purb, |
| 135 | dev->usbdev, |
| 136 | usb_rcvbulkpipe(dev->usbdev, _AU0828_BULKPIPE), |
| 137 | purb->transfer_buffer, |
| 138 | URB_BUFSIZE, |
| 139 | urb_completion, |
| 140 | dev); |
| 141 | |
| 142 | } |
| 143 | |
| 144 | for (i = 0; i < URB_COUNT; i++) { |
| 145 | ret = usb_submit_urb(dev->urbs[i], GFP_ATOMIC); |
| 146 | if (ret != 0) { |
| 147 | stop_urb_transfer(dev); |
| 148 | printk("%s: failed urb submission, err = %d\n", __FUNCTION__, ret); |
| 149 | return ret; |
| 150 | } |
| 151 | } |
| 152 | |
| 153 | dev->urb_streaming = 1; |
| 154 | ret = 0; |
| 155 | |
| 156 | err: |
| 157 | return ret; |
| 158 | } |
| 159 | |
| 160 | static int au0828_dvb_start_feed(struct dvb_demux_feed *feed) |
| 161 | { |
| 162 | struct dvb_demux *demux = feed->demux; |
| 163 | struct au0828_dev *dev = (struct au0828_dev *) demux->priv; |
| 164 | struct au0828_dvb *dvb = &dev->dvb; |
| 165 | int ret = 0; |
| 166 | |
| 167 | printk(KERN_INFO "%s() pid = 0x%x index = %d\n", __FUNCTION__, feed->pid, feed->index); |
| 168 | |
| 169 | if (!demux->dmx.frontend) |
| 170 | return -EINVAL; |
| 171 | |
| 172 | printk(KERN_INFO "%s() Preparing, feeding = %d\n", __FUNCTION__, dvb->feeding); |
| 173 | if (dvb) { |
| 174 | mutex_lock(&dvb->lock); |
| 175 | if (dvb->feeding++ == 0) { |
| 176 | printk(KERN_INFO "%s() Starting Transport DMA\n", |
| 177 | __FUNCTION__); |
| 178 | au0828_write(dev, 0x608, 0x90); |
| 179 | au0828_write(dev, 0x609, 0x72); |
| 180 | au0828_write(dev, 0x60a, 0x71); |
| 181 | au0828_write(dev, 0x60b, 0x01); |
| 182 | ret = start_urb_transfer(dev); |
| 183 | } |
| 184 | mutex_unlock(&dvb->lock); |
| 185 | } |
| 186 | |
| 187 | return ret; |
| 188 | } |
| 189 | |
| 190 | static int au0828_dvb_stop_feed(struct dvb_demux_feed *feed) |
| 191 | { |
| 192 | struct dvb_demux *demux = feed->demux; |
| 193 | struct au0828_dev *dev = (struct au0828_dev *) demux->priv; |
| 194 | struct au0828_dvb *dvb = &dev->dvb; |
| 195 | int ret = 0; |
| 196 | |
| 197 | printk(KERN_INFO "%s() pid = 0x%x index = %d\n", __FUNCTION__, feed->pid, feed->index); |
| 198 | |
| 199 | if (dvb) { |
| 200 | mutex_lock(&dvb->lock); |
| 201 | if (--dvb->feeding == 0) { |
| 202 | printk(KERN_INFO "%s() Stopping Transport DMA\n", |
| 203 | __FUNCTION__); |
| 204 | au0828_write(dev, 0x608, 0x00); |
| 205 | au0828_write(dev, 0x609, 0x00); |
| 206 | au0828_write(dev, 0x60a, 0x00); |
| 207 | au0828_write(dev, 0x60b, 0x00); |
| 208 | ret = stop_urb_transfer(dev); |
| 209 | } |
| 210 | mutex_unlock(&dvb->lock); |
| 211 | } |
| 212 | |
| 213 | return ret; |
| 214 | } |
| 215 | |
| 216 | int dvb_register(struct au0828_dev *dev) |
| 217 | { |
| 218 | struct au0828_dvb *dvb = &dev->dvb; |
| 219 | int result; |
| 220 | |
| 221 | /* register adapter */ |
| 222 | result = dvb_register_adapter(&dvb->adapter, DRIVER_NAME, THIS_MODULE, |
| 223 | &dev->usbdev->dev, adapter_nr); |
| 224 | if (result < 0) { |
| 225 | printk(KERN_WARNING "%s: dvb_register_adapter failed (errno = %d)\n", |
| 226 | DRIVER_NAME, result); |
| 227 | goto fail_adapter; |
| 228 | } |
| 229 | dvb->adapter.priv = dev; |
| 230 | |
| 231 | /* register frontend */ |
| 232 | result = dvb_register_frontend(&dvb->adapter, dvb->frontend); |
| 233 | if (result < 0) { |
| 234 | printk(KERN_WARNING "%s: dvb_register_frontend failed (errno = %d)\n", |
| 235 | DRIVER_NAME, result); |
| 236 | goto fail_frontend; |
| 237 | } |
| 238 | |
| 239 | /* register demux stuff */ |
| 240 | dvb->demux.dmx.capabilities = |
| 241 | DMX_TS_FILTERING | DMX_SECTION_FILTERING | |
| 242 | DMX_MEMORY_BASED_FILTERING; |
| 243 | dvb->demux.priv = dev; |
| 244 | dvb->demux.filternum = 256; |
| 245 | dvb->demux.feednum = 256; |
| 246 | dvb->demux.start_feed = au0828_dvb_start_feed; |
| 247 | dvb->demux.stop_feed = au0828_dvb_stop_feed; |
| 248 | result = dvb_dmx_init(&dvb->demux); |
| 249 | if (result < 0) { |
| 250 | printk(KERN_WARNING "%s: dvb_dmx_init failed (errno = %d)\n", |
| 251 | DRIVER_NAME, result); |
| 252 | goto fail_dmx; |
| 253 | } |
| 254 | |
| 255 | dvb->dmxdev.filternum = 256; |
| 256 | dvb->dmxdev.demux = &dvb->demux.dmx; |
| 257 | dvb->dmxdev.capabilities = 0; |
| 258 | result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter); |
| 259 | if (result < 0) { |
| 260 | printk(KERN_WARNING "%s: dvb_dmxdev_init failed (errno = %d)\n", |
| 261 | DRIVER_NAME, result); |
| 262 | goto fail_dmxdev; |
| 263 | } |
| 264 | |
| 265 | dvb->fe_hw.source = DMX_FRONTEND_0; |
| 266 | result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw); |
| 267 | if (result < 0) { |
| 268 | printk(KERN_WARNING "%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n", |
| 269 | DRIVER_NAME, result); |
| 270 | goto fail_fe_hw; |
| 271 | } |
| 272 | |
| 273 | dvb->fe_mem.source = DMX_MEMORY_FE; |
| 274 | result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem); |
| 275 | if (result < 0) { |
| 276 | printk(KERN_WARNING "%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n", |
| 277 | DRIVER_NAME, result); |
| 278 | goto fail_fe_mem; |
| 279 | } |
| 280 | |
| 281 | result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw); |
| 282 | if (result < 0) { |
| 283 | printk(KERN_WARNING "%s: connect_frontend failed (errno = %d)\n", |
| 284 | DRIVER_NAME, result); |
| 285 | goto fail_fe_conn; |
| 286 | } |
| 287 | |
| 288 | /* register network adapter */ |
| 289 | dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx); |
| 290 | return 0; |
| 291 | |
| 292 | fail_fe_conn: |
| 293 | dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem); |
| 294 | fail_fe_mem: |
| 295 | dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw); |
| 296 | fail_fe_hw: |
| 297 | dvb_dmxdev_release(&dvb->dmxdev); |
| 298 | fail_dmxdev: |
| 299 | dvb_dmx_release(&dvb->demux); |
| 300 | fail_dmx: |
| 301 | dvb_unregister_frontend(dvb->frontend); |
| 302 | fail_frontend: |
| 303 | dvb_frontend_detach(dvb->frontend); |
| 304 | dvb_unregister_adapter(&dvb->adapter); |
| 305 | fail_adapter: |
| 306 | return result; |
| 307 | } |
| 308 | |
| 309 | void au0828_dvb_unregister(struct au0828_dev *dev) |
| 310 | { |
| 311 | struct au0828_dvb *dvb = &dev->dvb; |
| 312 | |
| 313 | dvb_net_release(&dvb->net); |
| 314 | dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem); |
| 315 | dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw); |
| 316 | dvb_dmxdev_release(&dvb->dmxdev); |
| 317 | dvb_dmx_release(&dvb->demux); |
| 318 | dvb_unregister_frontend(dvb->frontend); |
| 319 | dvb_frontend_detach(dvb->frontend); |
| 320 | dvb_unregister_adapter(&dvb->adapter); |
| 321 | } |
| 322 | |
| 323 | /* All the DVB attach calls go here, this function get's modified |
| 324 | * for each new card. No other function in this file needs |
| 325 | * to change. |
| 326 | */ |
| 327 | int au0828_dvb_register(struct au0828_dev *dev) |
| 328 | { |
| 329 | struct au0828_dvb *dvb = &dev->dvb; |
| 330 | int ret; |
| 331 | |
| 332 | /* init frontend */ |
| 333 | switch (dev->board) { |
| 334 | case AU0828_BOARD_HAUPPAUGE_HVR850: |
| 335 | case AU0828_BOARD_HAUPPAUGE_HVR950Q: |
| 336 | case AU0828_BOARD_DVICO_FUSIONHDTV7: |
| 337 | dvb->frontend = dvb_attach(au8522_attach, |
| 338 | &hauppauge_hvr950q_config, |
| 339 | &dev->i2c_adap); |
| 340 | if (dvb->frontend != NULL) { |
| 341 | hauppauge_hvr950q_tunerconfig.priv = dev; |
| 342 | dvb_attach(xc5000_attach, dvb->frontend, |
| 343 | &dev->i2c_adap, |
| 344 | &hauppauge_hvr950q_tunerconfig); |
| 345 | } |
| 346 | break; |
| 347 | default: |
| 348 | printk("The frontend of your DVB/ATSC card isn't supported yet\n"); |
| 349 | break; |
| 350 | } |
| 351 | if (NULL == dvb->frontend) { |
| 352 | printk("Frontend initialization failed\n"); |
| 353 | return -1; |
| 354 | } |
| 355 | |
| 356 | /* Put the analog decoder in standby to keep it quiet */ |
| 357 | au0828_call_i2c_clients(dev, TUNER_SET_STANDBY, NULL); |
| 358 | |
| 359 | if (dvb->frontend->ops.analog_ops.standby) |
| 360 | dvb->frontend->ops.analog_ops.standby(dvb->frontend); |
| 361 | |
| 362 | /* register everything */ |
| 363 | ret = dvb_register(dev); |
| 364 | if (ret < 0) { |
| 365 | if (dvb->frontend->ops.release) |
| 366 | dvb->frontend->ops.release(dvb->frontend); |
| 367 | return ret; |
| 368 | } |
| 369 | |
| 370 | return 0; |
| 371 | } |