drivers/media/pci/cobalt/cobalt-driver.c

   1 /*
   2  *  cobalt driver initialization and card probing
   3  *
   4  *  Derived from cx18-driver.c
   5  *
   6  *  Copyright 2012-2015 Cisco Systems, Inc. and/or its affiliates.
   7  *  All rights reserved.
   8  *
   9  *  This program is free software; you may redistribute it and/or modify
  10  *  it under the terms of the GNU General Public License as published by
  11  *  the Free Software Foundation; version 2 of the License.
  12  *
  13  *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  14  *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  15  *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  16  *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  17  *  BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  18  *  ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  19  *  CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  20  *  SOFTWARE.
  21  */
  22
  23 #include <linux/delay.h>
  24 #include <media/i2c/adv7604.h>
  25 #include <media/i2c/adv7842.h>
  26 #include <media/i2c/adv7511.h>
  27 #include <media/v4l2-event.h>
  28 #include <media/v4l2-ctrls.h>
  29
  30 #include "cobalt-driver.h"
  31 #include "cobalt-irq.h"
  32 #include "cobalt-i2c.h"
  33 #include "cobalt-v4l2.h"
  34 #include "cobalt-flash.h"
  35 #include "cobalt-alsa.h"
  36 #include "cobalt-omnitek.h"
  37
  38 /* add your revision and whatnot here */
  39 static const struct pci_device_id cobalt_pci_tbl[] = {
  40         {PCI_VENDOR_ID_CISCO, PCI_DEVICE_ID_COBALT,
  41          PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
  42         {0,}
  43 };
  44
  45 MODULE_DEVICE_TABLE(pci, cobalt_pci_tbl);
  46
  47 static atomic_t cobalt_instance = ATOMIC_INIT(0);
  48
  49 int cobalt_debug;
  50 module_param_named(debug, cobalt_debug, int, 0644);
  51 MODULE_PARM_DESC(debug, "Debug level. Default: 0\n");
  52
  53 int cobalt_ignore_err;
  54 module_param_named(ignore_err, cobalt_ignore_err, int, 0644);
  55 MODULE_PARM_DESC(ignore_err,
  56         "If set then ignore missing i2c adapters/receivers. Default: 0\n");
  57
  58 MODULE_AUTHOR("Hans Verkuil <hans.verkuil@cisco.com> & Morten Hestnes");
  59 MODULE_DESCRIPTION("cobalt driver");
  60 MODULE_LICENSE("GPL");
  61
  62 static u8 edid[256] = {
  63         0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00,
  64         0x50, 0x21, 0x32, 0x27, 0x00, 0x00, 0x00, 0x00,
  65         0x22, 0x1a, 0x01, 0x03, 0x80, 0x30, 0x1b, 0x78,
  66         0x0f, 0xee, 0x91, 0xa3, 0x54, 0x4c, 0x99, 0x26,
  67         0x0f, 0x50, 0x54, 0x2f, 0xcf, 0x00, 0x31, 0x59,
  68         0x45, 0x59, 0x61, 0x59, 0x81, 0x99, 0x01, 0x01,
  69         0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x3a,
  70         0x80, 0x18, 0x71, 0x38, 0x2d, 0x40, 0x58, 0x2c,
  71         0x46, 0x00, 0xe0, 0x0e, 0x11, 0x00, 0x00, 0x1e,
  72         0x00, 0x00, 0x00, 0xfd, 0x00, 0x18, 0x55, 0x18,
  73         0x5e, 0x11, 0x00, 0x0a, 0x20, 0x20, 0x20, 0x20,
  74         0x20, 0x20, 0x00, 0x00, 0x00, 0xfc, 0x00, 0x63,
  75         0x6f, 0x62, 0x61, 0x6c, 0x74, 0x0a, 0x20, 0x20,
  76         0x20, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0x10,
  77         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  78         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x9c,
  79
  80         0x02, 0x03, 0x1f, 0xf0, 0x4a, 0x90, 0x1f, 0x04,
  81         0x13, 0x22, 0x21, 0x20, 0x02, 0x11, 0x01, 0x23,
  82         0x09, 0x07, 0x07, 0x68, 0x03, 0x0c, 0x00, 0x10,
  83         0x00, 0x00, 0x22, 0x0f, 0xe2, 0x00, 0xea, 0x00,
  84         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  85         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  86         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  87         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  88         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  89         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  90         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  91         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  92         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  93         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  94         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  95         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xa7,
  96 };
  97
  98 static void cobalt_set_interrupt(struct cobalt *cobalt, bool enable)
  99 {
 100         if (enable) {
 101                 unsigned irqs = COBALT_SYSSTAT_VI0_INT1_MSK |
 102                                 COBALT_SYSSTAT_VI1_INT1_MSK |
 103                                 COBALT_SYSSTAT_VI2_INT1_MSK |
 104                                 COBALT_SYSSTAT_VI3_INT1_MSK |
 105                                 COBALT_SYSSTAT_VI0_INT2_MSK |
 106                                 COBALT_SYSSTAT_VI1_INT2_MSK |
 107                                 COBALT_SYSSTAT_VI2_INT2_MSK |
 108                                 COBALT_SYSSTAT_VI3_INT2_MSK |
 109                                 COBALT_SYSSTAT_VI0_LOST_DATA_MSK |
 110                                 COBALT_SYSSTAT_VI1_LOST_DATA_MSK |
 111                                 COBALT_SYSSTAT_VI2_LOST_DATA_MSK |
 112                                 COBALT_SYSSTAT_VI3_LOST_DATA_MSK |
 113                                 COBALT_SYSSTAT_AUD_IN_LOST_DATA_MSK;
 114
 115                 if (cobalt->have_hsma_rx)
 116                         irqs |= COBALT_SYSSTAT_VIHSMA_INT1_MSK |
 117                                 COBALT_SYSSTAT_VIHSMA_INT2_MSK |
 118                                 COBALT_SYSSTAT_VIHSMA_LOST_DATA_MSK;
 119
 120                 if (cobalt->have_hsma_tx)
 121                         irqs |= COBALT_SYSSTAT_VOHSMA_INT1_MSK |
 122                                 COBALT_SYSSTAT_VOHSMA_LOST_DATA_MSK |
 123                                 COBALT_SYSSTAT_AUD_OUT_LOST_DATA_MSK;
 124                 /* Clear any existing interrupts */
 125                 cobalt_write_bar1(cobalt, COBALT_SYS_STAT_EDGE, 0xffffffff);
 126                 /* PIO Core interrupt mask register.
 127                    Enable ADV7604 INT1 interrupts */
 128                 cobalt_write_bar1(cobalt, COBALT_SYS_STAT_MASK, irqs);
 129         } else {
 130                 /* Disable all ADV7604 interrupts */
 131                 cobalt_write_bar1(cobalt, COBALT_SYS_STAT_MASK, 0);
 132         }
 133 }
 134
 135 static unsigned cobalt_get_sd_nr(struct v4l2_subdev *sd)
 136 {
 137         struct cobalt *cobalt = to_cobalt(sd->v4l2_dev);
 138         unsigned i;
 139
 140         for (i = 0; i < COBALT_NUM_NODES; i++)
 141                 if (sd == cobalt->streams[i].sd)
 142                         return i;
 143         cobalt_err("Invalid adv7604 subdev pointer!\n");
 144         return 0;
 145 }
 146
 147 static void cobalt_notify(struct v4l2_subdev *sd,
 148                           unsigned int notification, void *arg)
 149 {
 150         struct cobalt *cobalt = to_cobalt(sd->v4l2_dev);
 151         unsigned sd_nr = cobalt_get_sd_nr(sd);
 152         struct cobalt_stream *s = &cobalt->streams[sd_nr];
 153         bool hotplug = arg ? *((int *)arg) : false;
 154
 155         if (s->is_output)
 156                 return;
 157
 158         switch (notification) {
 159         case ADV76XX_HOTPLUG:
 160                 cobalt_s_bit_sysctrl(cobalt,
 161                         COBALT_SYS_CTRL_HPD_TO_CONNECTOR_BIT(sd_nr), hotplug);
 162                 cobalt_dbg(1, "Set hotplug for adv %d to %d\n", sd_nr, hotplug);
 163                 break;
 164         case V4L2_DEVICE_NOTIFY_EVENT:
 165                 cobalt_dbg(1, "Format changed for adv %d\n", sd_nr);
 166                 v4l2_event_queue(&s->vdev, arg);
 167                 break;
 168         default:
 169                 break;
 170         }
 171 }
 172
 173 static int get_payload_size(u16 code)
 174 {
 175         switch (code) {
 176         case 0: return 128;
 177         case 1: return 256;
 178         case 2: return 512;
 179         case 3: return 1024;
 180         case 4: return 2048;
 181         case 5: return 4096;
 182         default: return 0;
 183         }
 184         return 0;
 185 }
 186
 187 static const char *get_link_speed(u16 stat)
 188 {
 189         switch (stat & PCI_EXP_LNKSTA_CLS) {
 190         case 1: return "2.5 Gbit/s";
 191         case 2: return "5 Gbit/s";
 192         case 3: return "10 Gbit/s";
 193         }
 194         return "Unknown speed";
 195 }
 196
 197 void cobalt_pcie_status_show(struct cobalt *cobalt)
 198 {
 199         struct pci_dev *pci_dev = cobalt->pci_dev;
 200         struct pci_dev *pci_bus_dev = cobalt->pci_dev->bus->self;
 201         int offset;
 202         int bus_offset;
 203         u32 capa;
 204         u16 stat, ctrl;
 205
 206         offset = pci_find_capability(pci_dev, PCI_CAP_ID_EXP);
 207         bus_offset = pci_find_capability(pci_bus_dev, PCI_CAP_ID_EXP);
 208         if (!offset || !bus_offset)
 209                 return;
 210
 211         /* Device */
 212         pci_read_config_dword(pci_dev, offset + PCI_EXP_DEVCAP, &capa);
 213         pci_read_config_word(pci_dev, offset + PCI_EXP_DEVCTL, &ctrl);
 214         pci_read_config_word(pci_dev, offset + PCI_EXP_DEVSTA, &stat);
 215         cobalt_info("PCIe device capability 0x%08x: Max payload %d\n",
 216                     capa, get_payload_size(capa & PCI_EXP_DEVCAP_PAYLOAD));
 217         cobalt_info("PCIe device control 0x%04x: Max payload %d. Max read request %d\n",
 218                     ctrl,
 219                     get_payload_size((ctrl & PCI_EXP_DEVCTL_PAYLOAD) >> 5),
 220                     get_payload_size((ctrl & PCI_EXP_DEVCTL_READRQ) >> 12));
 221         cobalt_info("PCIe device status 0x%04x\n", stat);
 222
 223         /* Link */
 224         pci_read_config_dword(pci_dev, offset + PCI_EXP_LNKCAP, &capa);
 225         pci_read_config_word(pci_dev, offset + PCI_EXP_LNKCTL, &ctrl);
 226         pci_read_config_word(pci_dev, offset + PCI_EXP_LNKSTA, &stat);
 227         cobalt_info("PCIe link capability 0x%08x: %s per lane and %u lanes\n",
 228                         capa, get_link_speed(capa),
 229                         (capa & PCI_EXP_LNKCAP_MLW) >> 4);
 230         cobalt_info("PCIe link control 0x%04x\n", ctrl);
 231         cobalt_info("PCIe link status 0x%04x: %s per lane and %u lanes\n",
 232                     stat, get_link_speed(stat),
 233                     (stat & PCI_EXP_LNKSTA_NLW) >> 4);
 234
 235         /* Bus */
 236         pci_read_config_dword(pci_bus_dev, bus_offset + PCI_EXP_LNKCAP, &capa);
 237         cobalt_info("PCIe bus link capability 0x%08x: %s per lane and %u lanes\n",
 238                         capa, get_link_speed(capa),
 239                         (capa & PCI_EXP_LNKCAP_MLW) >> 4);
 240
 241         /* Slot */
 242         pci_read_config_dword(pci_dev, offset + PCI_EXP_SLTCAP, &capa);
 243         pci_read_config_word(pci_dev, offset + PCI_EXP_SLTCTL, &ctrl);
 244         pci_read_config_word(pci_dev, offset + PCI_EXP_SLTSTA, &stat);
 245         cobalt_info("PCIe slot capability 0x%08x\n", capa);
 246         cobalt_info("PCIe slot control 0x%04x\n", ctrl);
 247         cobalt_info("PCIe slot status 0x%04x\n", stat);
 248 }
 249
 250 static unsigned pcie_link_get_lanes(struct cobalt *cobalt)
 251 {
 252         struct pci_dev *pci_dev = cobalt->pci_dev;
 253         unsigned offset;
 254         u16 link;
 255
 256         offset = pci_find_capability(pci_dev, PCI_CAP_ID_EXP);
 257         if (!offset)
 258                 return 0;
 259         pci_read_config_word(pci_dev, offset + PCI_EXP_LNKSTA, &link);
 260         return (link & PCI_EXP_LNKSTA_NLW) >> 4;
 261 }
 262
 263 static unsigned pcie_bus_link_get_lanes(struct cobalt *cobalt)
 264 {
 265         struct pci_dev *pci_dev = cobalt->pci_dev->bus->self;
 266         unsigned offset;
 267         u32 link;
 268
 269         offset = pci_find_capability(pci_dev, PCI_CAP_ID_EXP);
 270         if (!offset)
 271                 return 0;
 272         pci_read_config_dword(pci_dev, offset + PCI_EXP_LNKCAP, &link);
 273         return (link & PCI_EXP_LNKCAP_MLW) >> 4;
 274 }
 275
 276 static void msi_config_show(struct cobalt *cobalt, struct pci_dev *pci_dev)
 277 {
 278         u16 ctrl, data;
 279         u32 adrs_l, adrs_h;
 280
 281         pci_read_config_word(pci_dev, 0x52, &ctrl);
 282         cobalt_info("MSI %s\n", ctrl & 1 ? "enable" : "disable");
 283         cobalt_info("MSI multiple message: Capable %u. Enable %u\n",
 284                     (1 << ((ctrl >> 1) & 7)), (1 << ((ctrl >> 4) & 7)));
 285         if (ctrl & 0x80)
 286                 cobalt_info("MSI: 64-bit address capable\n");
 287         pci_read_config_dword(pci_dev, 0x54, &adrs_l);
 288         pci_read_config_dword(pci_dev, 0x58, &adrs_h);
 289         pci_read_config_word(pci_dev, 0x5c, &data);
 290         if (ctrl & 0x80)
 291                 cobalt_info("MSI: Address 0x%08x%08x. Data 0x%04x\n",
 292                                 adrs_h, adrs_l, data);
 293         else
 294                 cobalt_info("MSI: Address 0x%08x. Data 0x%04x\n",
 295                                 adrs_l, data);
 296 }
 297
 298 static void cobalt_pci_iounmap(struct cobalt *cobalt, struct pci_dev *pci_dev)
 299 {
 300         if (cobalt->bar0) {
 301                 pci_iounmap(pci_dev, cobalt->bar0);
 302                 cobalt->bar0 = NULL;
 303         }
 304         if (cobalt->bar1) {
 305                 pci_iounmap(pci_dev, cobalt->bar1);
 306                 cobalt->bar1 = NULL;
 307         }
 308 }
 309
 310 static void cobalt_free_msi(struct cobalt *cobalt, struct pci_dev *pci_dev)
 311 {
 312         free_irq(pci_dev->irq, (void *)cobalt);
 313         pci_free_irq_vectors(pci_dev);
 314 }
 315
 316 static int cobalt_setup_pci(struct cobalt *cobalt, struct pci_dev *pci_dev,
 317                             const struct pci_device_id *pci_id)
 318 {
 319         u32 ctrl;
 320         int ret;
 321
 322         cobalt_dbg(1, "enabling pci device\n");
 323
 324         ret = pci_enable_device(pci_dev);
 325         if (ret) {
 326                 cobalt_err("can't enable device\n");
 327                 return ret;
 328         }
 329         pci_set_master(pci_dev);
 330         pci_read_config_byte(pci_dev, PCI_CLASS_REVISION, &cobalt->card_rev);
 331         pci_read_config_word(pci_dev, PCI_DEVICE_ID, &cobalt->device_id);
 332
 333         switch (cobalt->device_id) {
 334         case PCI_DEVICE_ID_COBALT:
 335                 cobalt_info("PCI Express interface from Omnitek\n");
 336                 break;
 337         default:
 338                 cobalt_info("PCI Express interface provider is unknown!\n");
 339                 break;
 340         }
 341
 342         if (pcie_link_get_lanes(cobalt) != 8) {
 343                 cobalt_warn("PCI Express link width is %d lanes.\n",
 344                                 pcie_link_get_lanes(cobalt));
 345                 if (pcie_bus_link_get_lanes(cobalt) < 8)
 346                         cobalt_warn("The current slot only supports %d lanes, for best performance 8 are needed\n",
 347                                         pcie_bus_link_get_lanes(cobalt));
 348                 if (pcie_link_get_lanes(cobalt) != pcie_bus_link_get_lanes(cobalt)) {
 349                         cobalt_err("The card is most likely not seated correctly in the PCIe slot\n");
 350                         ret = -EIO;
 351                         goto err_disable;
 352                 }
 353         }
 354
 355         if (pci_set_dma_mask(pci_dev, DMA_BIT_MASK(64))) {
 356                 ret = pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32));
 357                 if (ret) {
 358                         cobalt_err("no suitable DMA available\n");
 359                         goto err_disable;
 360                 }
 361         }
 362
 363         ret = pci_request_regions(pci_dev, "cobalt");
 364         if (ret) {
 365                 cobalt_err("error requesting regions\n");
 366                 goto err_disable;
 367         }
 368
 369         cobalt_pcie_status_show(cobalt);
 370
 371         cobalt->bar0 = pci_iomap(pci_dev, 0, 0);
 372         cobalt->bar1 = pci_iomap(pci_dev, 1, 0);
 373         if (cobalt->bar1 == NULL) {
 374                 cobalt->bar1 = pci_iomap(pci_dev, 2, 0);
 375                 cobalt_info("64-bit BAR\n");
 376         }
 377         if (!cobalt->bar0 || !cobalt->bar1) {
 378                 ret = -EIO;
 379                 goto err_release;
 380         }
 381
 382         /* Reset the video inputs before enabling any interrupts */
 383         ctrl = cobalt_read_bar1(cobalt, COBALT_SYS_CTRL_BASE);
 384         cobalt_write_bar1(cobalt, COBALT_SYS_CTRL_BASE, ctrl & ~0xf00);
 385
 386         /* Disable interrupts to prevent any spurious interrupts
 387            from being generated. */
 388         cobalt_set_interrupt(cobalt, false);
 389
 390         if (pci_alloc_irq_vectors(pci_dev, 1, 1, PCI_IRQ_MSI) < 1) {
 391                 cobalt_err("Could not enable MSI\n");
 392                 ret = -EIO;
 393                 goto err_release;
 394         }
 395         msi_config_show(cobalt, pci_dev);
 396
 397         /* Register IRQ */
 398         if (request_irq(pci_dev->irq, cobalt_irq_handler, IRQF_SHARED,
 399                         cobalt->v4l2_dev.name, (void *)cobalt)) {
 400                 cobalt_err("Failed to register irq %d\n", pci_dev->irq);
 401                 ret = -EIO;
 402                 goto err_msi;
 403         }
 404
 405         omni_sg_dma_init(cobalt);
 406         return 0;
 407
 408 err_msi:
 409         pci_disable_msi(pci_dev);
 410
 411 err_release:
 412         cobalt_pci_iounmap(cobalt, pci_dev);
 413         pci_release_regions(pci_dev);
 414
 415 err_disable:
 416         pci_disable_device(cobalt->pci_dev);
 417         return ret;
 418 }
 419
 420 static int cobalt_hdl_info_get(struct cobalt *cobalt)
 421 {
 422         int i;
 423
 424         for (i = 0; i < COBALT_HDL_INFO_SIZE; i++)
 425                 cobalt->hdl_info[i] =
 426                         ioread8(cobalt->bar1 + COBALT_HDL_INFO_BASE + i);
 427         cobalt->hdl_info[COBALT_HDL_INFO_SIZE - 1] = '\0';
 428         if (strstr(cobalt->hdl_info, COBALT_HDL_SEARCH_STR))
 429                 return 0;
 430
 431         return 1;
 432 }
 433
 434 static void cobalt_stream_struct_init(struct cobalt *cobalt)
 435 {
 436         int i;
 437
 438         for (i = 0; i < COBALT_NUM_STREAMS; i++) {
 439                 struct cobalt_stream *s = &cobalt->streams[i];
 440
 441                 s->cobalt = cobalt;
 442                 s->flags = 0;
 443                 s->is_audio = false;
 444                 s->is_output = false;
 445                 s->is_dummy = true;
 446
 447                 /* The Memory DMA channels will always get a lower channel
 448                  * number than the FIFO DMA. Video input should map to the
 449                  * stream 0-3. The other can use stream struct from 4 and
 450                  * higher */
 451                 if (i <= COBALT_HSMA_IN_NODE) {
 452                         s->dma_channel = i + cobalt->first_fifo_channel;
 453                         s->video_channel = i;
 454                         s->dma_fifo_mask =
 455                                 COBALT_SYSSTAT_VI0_LOST_DATA_MSK << (4 * i);
 456                         s->adv_irq_mask =
 457                                 COBALT_SYSSTAT_VI0_INT1_MSK << (4 * i);
 458                 } else if (i >= COBALT_AUDIO_IN_STREAM &&
 459                            i <= COBALT_AUDIO_IN_STREAM + 4) {
 460                         unsigned idx = i - COBALT_AUDIO_IN_STREAM;
 461
 462                         s->dma_channel = 6 + idx;
 463                         s->is_audio = true;
 464                         s->video_channel = idx;
 465                         s->dma_fifo_mask = COBALT_SYSSTAT_AUD_IN_LOST_DATA_MSK;
 466                 } else if (i == COBALT_HSMA_OUT_NODE) {
 467                         s->dma_channel = 11;
 468                         s->is_output = true;
 469                         s->video_channel = 5;
 470                         s->dma_fifo_mask = COBALT_SYSSTAT_VOHSMA_LOST_DATA_MSK;
 471                         s->adv_irq_mask = COBALT_SYSSTAT_VOHSMA_INT1_MSK;
 472                 } else if (i == COBALT_AUDIO_OUT_STREAM) {
 473                         s->dma_channel = 12;
 474                         s->is_audio = true;
 475                         s->is_output = true;
 476                         s->video_channel = 5;
 477                         s->dma_fifo_mask = COBALT_SYSSTAT_AUD_OUT_LOST_DATA_MSK;
 478                 } else {
 479                         /* FIXME: Memory DMA for debug purpose */
 480                         s->dma_channel = i - COBALT_NUM_NODES;
 481                 }
 482                 cobalt_info("stream #%d -> dma channel #%d <- video channel %d\n",
 483                             i, s->dma_channel, s->video_channel);
 484         }
 485 }
 486
 487 static int cobalt_subdevs_init(struct cobalt *cobalt)
 488 {
 489         static struct adv76xx_platform_data adv7604_pdata = {
 490                 .disable_pwrdnb = 1,
 491                 .ain_sel = ADV7604_AIN7_8_9_NC_SYNC_3_1,
 492                 .bus_order = ADV7604_BUS_ORDER_BRG,
 493                 .blank_data = 1,
 494                 .op_format_mode_sel = ADV7604_OP_FORMAT_MODE0,
 495                 .int1_config = ADV76XX_INT1_CONFIG_ACTIVE_HIGH,
 496                 .dr_str_data = ADV76XX_DR_STR_HIGH,
 497                 .dr_str_clk = ADV76XX_DR_STR_HIGH,
 498                 .dr_str_sync = ADV76XX_DR_STR_HIGH,
 499                 .hdmi_free_run_mode = 1,
 500                 .inv_vs_pol = 1,
 501                 .inv_hs_pol = 1,
 502         };
 503         static struct i2c_board_info adv7604_info = {
 504                 .type = "adv7604",
 505                 .addr = 0x20,
 506                 .platform_data = &adv7604_pdata,
 507         };
 508
 509         struct cobalt_stream *s = cobalt->streams;
 510         int i;
 511
 512         for (i = 0; i < COBALT_NUM_INPUTS; i++) {
 513                 struct v4l2_subdev_format sd_fmt = {
 514                         .pad = ADV7604_PAD_SOURCE,
 515                         .which = V4L2_SUBDEV_FORMAT_ACTIVE,
 516                         .format.code = MEDIA_BUS_FMT_YUYV8_1X16,
 517                 };
 518                 struct v4l2_subdev_edid cobalt_edid = {
 519                         .pad = ADV76XX_PAD_HDMI_PORT_A,
 520                         .start_block = 0,
 521                         .blocks = 2,
 522                         .edid = edid,
 523                 };
 524                 int err;
 525
 526                 s[i].pad_source = ADV7604_PAD_SOURCE;
 527                 s[i].i2c_adap = &cobalt->i2c_adap[i];
 528                 if (s[i].i2c_adap->dev.parent == NULL)
 529                         continue;
 530                 cobalt_s_bit_sysctrl(cobalt,
 531                                 COBALT_SYS_CTRL_NRESET_TO_HDMI_BIT(i), 1);
 532                 s[i].sd = v4l2_i2c_new_subdev_board(&cobalt->v4l2_dev,
 533                         s[i].i2c_adap, &adv7604_info, NULL);
 534                 if (!s[i].sd) {
 535                         if (cobalt_ignore_err)
 536                                 continue;
 537                         return -ENODEV;
 538                 }
 539                 err = v4l2_subdev_call(s[i].sd, video, s_routing,
 540                                 ADV76XX_PAD_HDMI_PORT_A, 0, 0);
 541                 if (err)
 542                         return err;
 543                 err = v4l2_subdev_call(s[i].sd, pad, set_edid,
 544                                 &cobalt_edid);
 545                 if (err)
 546                         return err;
 547                 err = v4l2_subdev_call(s[i].sd, pad, set_fmt, NULL,
 548                                 &sd_fmt);
 549                 if (err)
 550                         return err;
 551                 /* Reset channel video module */
 552                 cobalt_s_bit_sysctrl(cobalt,
 553                                 COBALT_SYS_CTRL_VIDEO_RX_RESETN_BIT(i), 0);
 554                 mdelay(2);
 555                 cobalt_s_bit_sysctrl(cobalt,
 556                                 COBALT_SYS_CTRL_VIDEO_RX_RESETN_BIT(i), 1);
 557                 mdelay(1);
 558                 s[i].is_dummy = false;
 559                 cobalt->streams[i + COBALT_AUDIO_IN_STREAM].is_dummy = false;
 560         }
 561         return 0;
 562 }
 563
 564 static int cobalt_subdevs_hsma_init(struct cobalt *cobalt)
 565 {
 566         static struct adv7842_platform_data adv7842_pdata = {
 567                 .disable_pwrdnb = 1,
 568                 .ain_sel = ADV7842_AIN1_2_3_NC_SYNC_1_2,
 569                 .bus_order = ADV7842_BUS_ORDER_RBG,
 570                 .op_format_mode_sel = ADV7842_OP_FORMAT_MODE0,
 571                 .blank_data = 1,
 572                 .dr_str_data = 3,
 573                 .dr_str_clk = 3,
 574                 .dr_str_sync = 3,
 575                 .mode = ADV7842_MODE_HDMI,
 576                 .hdmi_free_run_enable = 1,
 577                 .vid_std_select = ADV7842_HDMI_COMP_VID_STD_HD_1250P,
 578                 .i2c_sdp_io = 0x4a,
 579                 .i2c_sdp = 0x48,
 580                 .i2c_cp = 0x22,
 581                 .i2c_vdp = 0x24,
 582                 .i2c_afe = 0x26,
 583                 .i2c_hdmi = 0x34,
 584                 .i2c_repeater = 0x32,
 585                 .i2c_edid = 0x36,
 586                 .i2c_infoframe = 0x3e,
 587                 .i2c_cec = 0x40,
 588                 .i2c_avlink = 0x42,
 589         };
 590         static struct i2c_board_info adv7842_info = {
 591                 .type = "adv7842",
 592                 .addr = 0x20,
 593                 .platform_data = &adv7842_pdata,
 594         };
 595         static struct v4l2_subdev_format sd_fmt = {
 596                 .pad = ADV7842_PAD_SOURCE,
 597                 .which = V4L2_SUBDEV_FORMAT_ACTIVE,
 598                 .format.code = MEDIA_BUS_FMT_YUYV8_1X16,
 599         };
 600         static struct adv7511_platform_data adv7511_pdata = {
 601                 .i2c_edid = 0x7e >> 1,
 602                 .i2c_cec = 0x7c >> 1,
 603                 .i2c_pktmem = 0x70 >> 1,
 604                 .cec_clk = 12000000,
 605         };
 606         static struct i2c_board_info adv7511_info = {
 607                 .type = "adv7511",
 608                 .addr = 0x39, /* 0x39 or 0x3d */
 609                 .platform_data = &adv7511_pdata,
 610         };
 611         struct v4l2_subdev_edid cobalt_edid = {
 612                 .pad = ADV7842_EDID_PORT_A,
 613                 .start_block = 0,
 614                 .blocks = 2,
 615                 .edid = edid,
 616         };
 617         struct cobalt_stream *s = &cobalt->streams[COBALT_HSMA_IN_NODE];
 618
 619         s->i2c_adap = &cobalt->i2c_adap[COBALT_NUM_ADAPTERS - 1];
 620         if (s->i2c_adap->dev.parent == NULL)
 621                 return 0;
 622         cobalt_s_bit_sysctrl(cobalt, COBALT_SYS_CTRL_NRESET_TO_HDMI_BIT(4), 1);
 623
 624         s->sd = v4l2_i2c_new_subdev_board(&cobalt->v4l2_dev,
 625                         s->i2c_adap, &adv7842_info, NULL);
 626         if (s->sd) {
 627                 int err = v4l2_subdev_call(s->sd, pad, set_edid, &cobalt_edid);
 628
 629                 if (err)
 630                         return err;
 631                 err = v4l2_subdev_call(s->sd, pad, set_fmt, NULL,
 632                                 &sd_fmt);
 633                 if (err)
 634                         return err;
 635                 cobalt->have_hsma_rx = true;
 636                 s->pad_source = ADV7842_PAD_SOURCE;
 637                 s->is_dummy = false;
 638                 cobalt->streams[4 + COBALT_AUDIO_IN_STREAM].is_dummy = false;
 639                 /* Reset channel video module */
 640                 cobalt_s_bit_sysctrl(cobalt,
 641                                 COBALT_SYS_CTRL_VIDEO_RX_RESETN_BIT(4), 0);
 642                 mdelay(2);
 643                 cobalt_s_bit_sysctrl(cobalt,
 644                                 COBALT_SYS_CTRL_VIDEO_RX_RESETN_BIT(4), 1);
 645                 mdelay(1);
 646                 return err;
 647         }
 648         cobalt_s_bit_sysctrl(cobalt, COBALT_SYS_CTRL_NRESET_TO_HDMI_BIT(4), 0);
 649         cobalt_s_bit_sysctrl(cobalt, COBALT_SYS_CTRL_PWRDN0_TO_HSMA_TX_BIT, 0);
 650         s++;
 651         s->i2c_adap = &cobalt->i2c_adap[COBALT_NUM_ADAPTERS - 1];
 652         s->sd = v4l2_i2c_new_subdev_board(&cobalt->v4l2_dev,
 653                         s->i2c_adap, &adv7511_info, NULL);
 654         if (s->sd) {
 655                 /* A transmitter is hooked up, so we can set this bit */
 656                 cobalt_s_bit_sysctrl(cobalt,
 657                                 COBALT_SYS_CTRL_HSMA_TX_ENABLE_BIT, 1);
 658                 cobalt_s_bit_sysctrl(cobalt,
 659                                 COBALT_SYS_CTRL_VIDEO_RX_RESETN_BIT(4), 0);
 660                 cobalt_s_bit_sysctrl(cobalt,
 661                                 COBALT_SYS_CTRL_VIDEO_TX_RESETN_BIT, 1);
 662                 cobalt->have_hsma_tx = true;
 663                 v4l2_subdev_call(s->sd, core, s_power, 1);
 664                 v4l2_subdev_call(s->sd, video, s_stream, 1);
 665                 v4l2_subdev_call(s->sd, audio, s_stream, 1);
 666                 v4l2_ctrl_s_ctrl(v4l2_ctrl_find(s->sd->ctrl_handler,
 667                                  V4L2_CID_DV_TX_MODE), V4L2_DV_TX_MODE_HDMI);
 668                 s->is_dummy = false;
 669                 cobalt->streams[COBALT_AUDIO_OUT_STREAM].is_dummy = false;
 670                 return 0;
 671         }
 672         return -ENODEV;
 673 }
 674
 675 static int cobalt_probe(struct pci_dev *pci_dev,
 676                                   const struct pci_device_id *pci_id)
 677 {
 678         struct cobalt *cobalt;
 679         int retval = 0;
 680         int i;
 681
 682         /* FIXME - module parameter arrays constrain max instances */
 683         i = atomic_inc_return(&cobalt_instance) - 1;
 684
 685         cobalt = kzalloc(sizeof(struct cobalt), GFP_ATOMIC);
 686         if (cobalt == NULL)
 687                 return -ENOMEM;
 688         cobalt->pci_dev = pci_dev;
 689         cobalt->instance = i;
 690
 691         retval = v4l2_device_register(&pci_dev->dev, &cobalt->v4l2_dev);
 692         if (retval) {
 693                 pr_err("cobalt: v4l2_device_register of card %d failed\n",
 694                                 cobalt->instance);
 695                 kfree(cobalt);
 696                 return retval;
 697         }
 698         snprintf(cobalt->v4l2_dev.name, sizeof(cobalt->v4l2_dev.name),
 699                  "cobalt-%d", cobalt->instance);
 700         cobalt->v4l2_dev.notify = cobalt_notify;
 701         cobalt_info("Initializing card %d\n", cobalt->instance);
 702
 703         cobalt->irq_work_queues =
 704                 create_singlethread_workqueue(cobalt->v4l2_dev.name);
 705         if (cobalt->irq_work_queues == NULL) {
 706                 cobalt_err("Could not create workqueue\n");
 707                 retval = -ENOMEM;
 708                 goto err;
 709         }
 710
 711         INIT_WORK(&cobalt->irq_work_queue, cobalt_irq_work_handler);
 712
 713         /* PCI Device Setup */
 714         retval = cobalt_setup_pci(cobalt, pci_dev, pci_id);
 715         if (retval != 0)
 716                 goto err_wq;
 717
 718         /* Show HDL version info */
 719         if (cobalt_hdl_info_get(cobalt))
 720                 cobalt_info("Not able to read the HDL info\n");
 721         else
 722                 cobalt_info("%s", cobalt->hdl_info);
 723
 724         retval = cobalt_i2c_init(cobalt);
 725         if (retval)
 726                 goto err_pci;
 727
 728         cobalt_stream_struct_init(cobalt);
 729
 730         retval = cobalt_subdevs_init(cobalt);
 731         if (retval)
 732                 goto err_i2c;
 733
 734         if (!(cobalt_read_bar1(cobalt, COBALT_SYS_STAT_BASE) &
 735                         COBALT_SYSSTAT_HSMA_PRSNTN_MSK)) {
 736                 retval = cobalt_subdevs_hsma_init(cobalt);
 737                 if (retval)
 738                         goto err_i2c;
 739         }
 740
 741         retval = v4l2_device_register_subdev_nodes(&cobalt->v4l2_dev);
 742         if (retval)
 743                 goto err_i2c;
 744         retval = cobalt_nodes_register(cobalt);
 745         if (retval) {
 746                 cobalt_err("Error %d registering device nodes\n", retval);
 747                 goto err_i2c;
 748         }
 749         cobalt_set_interrupt(cobalt, true);
 750         v4l2_device_call_all(&cobalt->v4l2_dev, 0, core,
 751                                         interrupt_service_routine, 0, NULL);
 752
 753         cobalt_info("Initialized cobalt card\n");
 754
 755         cobalt_flash_probe(cobalt);
 756
 757         return 0;
 758
 759 err_i2c:
 760         cobalt_i2c_exit(cobalt);
 761         cobalt_s_bit_sysctrl(cobalt, COBALT_SYS_CTRL_HSMA_TX_ENABLE_BIT, 0);
 762 err_pci:
 763         cobalt_free_msi(cobalt, pci_dev);
 764         cobalt_pci_iounmap(cobalt, pci_dev);
 765         pci_release_regions(cobalt->pci_dev);
 766         pci_disable_device(cobalt->pci_dev);
 767 err_wq:
 768         destroy_workqueue(cobalt->irq_work_queues);
 769 err:
 770         if (retval == 0)
 771                 retval = -ENODEV;
 772         cobalt_err("error %d on initialization\n", retval);
 773
 774         v4l2_device_unregister(&cobalt->v4l2_dev);
 775         kfree(cobalt);
 776         return retval;
 777 }
 778
 779 static void cobalt_remove(struct pci_dev *pci_dev)
 780 {
 781         struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
 782         struct cobalt *cobalt = to_cobalt(v4l2_dev);
 783         int i;
 784
 785         cobalt_flash_remove(cobalt);
 786         cobalt_set_interrupt(cobalt, false);
 787         flush_workqueue(cobalt->irq_work_queues);
 788         cobalt_nodes_unregister(cobalt);
 789         for (i = 0; i < COBALT_NUM_ADAPTERS; i++) {
 790                 struct v4l2_subdev *sd = cobalt->streams[i].sd;
 791                 struct i2c_client *client;
 792
 793                 if (sd == NULL)
 794                         continue;
 795                 client = v4l2_get_subdevdata(sd);
 796                 v4l2_device_unregister_subdev(sd);
 797                 i2c_unregister_device(client);
 798         }
 799         cobalt_i2c_exit(cobalt);
 800         cobalt_free_msi(cobalt, pci_dev);
 801         cobalt_s_bit_sysctrl(cobalt, COBALT_SYS_CTRL_HSMA_TX_ENABLE_BIT, 0);
 802         cobalt_pci_iounmap(cobalt, pci_dev);
 803         pci_release_regions(cobalt->pci_dev);
 804         pci_disable_device(cobalt->pci_dev);
 805         destroy_workqueue(cobalt->irq_work_queues);
 806
 807         cobalt_info("removed cobalt card\n");
 808
 809         v4l2_device_unregister(v4l2_dev);
 810         kfree(cobalt);
 811 }
 812
 813 /* define a pci_driver for card detection */
 814 static struct pci_driver cobalt_pci_driver = {
 815         .name =     "cobalt",
 816         .id_table = cobalt_pci_tbl,
 817         .probe =    cobalt_probe,
 818         .remove =   cobalt_remove,
 819 };
 820
 821 module_pci_driver(cobalt_pci_driver);