kernel/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/adv7604.h>
  25 #include <media/adv7842.h>
  26 #include <media/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 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, 0x9C, 0x27, 0x00, 0x00, 0x00, 0x00,
  65         0x19, 0x12, 0x01, 0x03, 0x80, 0x00, 0x00, 0x78,
  66         0x0E, 0x00, 0xB2, 0xA0, 0x57, 0x49, 0x9B, 0x26,
  67         0x10, 0x48, 0x4F, 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, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1E,
  72         0x00, 0x00, 0x00, 0xFD, 0x00, 0x31, 0x55, 0x18,
  73         0x5E, 0x11, 0x00, 0x0A, 0x20, 0x20, 0x20, 0x20,
  74         0x20, 0x20, 0x00, 0x00, 0x00, 0xFC, 0x00, 0x43,
  75         0x20, 0x39, 0x30, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A,
  76         0x0A, 0x0A, 0x0A, 0x0A, 0x00, 0x00, 0x00, 0x10,
  77         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  78         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x68,
  79         0x02, 0x03, 0x1a, 0xc0, 0x48, 0xa2, 0x10, 0x04,
  80         0x02, 0x01, 0x21, 0x14, 0x13, 0x23, 0x09, 0x07,
  81         0x07, 0x65, 0x03, 0x0c, 0x00, 0x10, 0x00, 0xe2,
  82         0x00, 0x2a, 0x01, 0x1d, 0x00, 0x80, 0x51, 0xd0,
  83         0x1c, 0x20, 0x40, 0x80, 0x35, 0x00, 0x00, 0x00,
  84         0x00, 0x00, 0x00, 0x1e, 0x8c, 0x0a, 0xd0, 0x8a,
  85         0x20, 0xe0, 0x2d, 0x10, 0x10, 0x3e, 0x96, 0x00,
  86         0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 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, 0xd7
  95 };
  96
  97 static void cobalt_set_interrupt(struct cobalt *cobalt, bool enable)
  98 {
  99         if (enable) {
 100                 unsigned irqs = COBALT_SYSSTAT_VI0_INT1_MSK |
 101                                 COBALT_SYSSTAT_VI1_INT1_MSK |
 102                                 COBALT_SYSSTAT_VI2_INT1_MSK |
 103                                 COBALT_SYSSTAT_VI3_INT1_MSK |
 104                                 COBALT_SYSSTAT_VI0_INT2_MSK |
 105                                 COBALT_SYSSTAT_VI1_INT2_MSK |
 106                                 COBALT_SYSSTAT_VI2_INT2_MSK |
 107                                 COBALT_SYSSTAT_VI3_INT2_MSK |
 108                                 COBALT_SYSSTAT_VI0_LOST_DATA_MSK |
 109                                 COBALT_SYSSTAT_VI1_LOST_DATA_MSK |
 110                                 COBALT_SYSSTAT_VI2_LOST_DATA_MSK |
 111                                 COBALT_SYSSTAT_VI3_LOST_DATA_MSK |
 112                                 COBALT_SYSSTAT_AUD_IN_LOST_DATA_MSK;
 113
 114                 if (cobalt->have_hsma_rx)
 115                         irqs |= COBALT_SYSSTAT_VIHSMA_INT1_MSK |
 116                                 COBALT_SYSSTAT_VIHSMA_INT2_MSK |
 117                                 COBALT_SYSSTAT_VIHSMA_LOST_DATA_MSK;
 118
 119                 if (cobalt->have_hsma_tx)
 120                         irqs |= COBALT_SYSSTAT_VOHSMA_INT1_MSK |
 121                                 COBALT_SYSSTAT_VOHSMA_LOST_DATA_MSK |
 122                                 COBALT_SYSSTAT_AUD_OUT_LOST_DATA_MSK;
 123                 /* Clear any existing interrupts */
 124                 cobalt_write_bar1(cobalt, COBALT_SYS_STAT_EDGE, 0xffffffff);
 125                 /* PIO Core interrupt mask register.
 126                    Enable ADV7604 INT1 interrupts */
 127                 cobalt_write_bar1(cobalt, COBALT_SYS_STAT_MASK, irqs);
 128         } else {
 129                 /* Disable all ADV7604 interrupts */
 130                 cobalt_write_bar1(cobalt, COBALT_SYS_STAT_MASK, 0);
 131         }
 132 }
 133
 134 static unsigned cobalt_get_sd_nr(struct v4l2_subdev *sd)
 135 {
 136         struct cobalt *cobalt = to_cobalt(sd->v4l2_dev);
 137         unsigned i;
 138
 139         for (i = 0; i < COBALT_NUM_NODES; i++)
 140                 if (sd == cobalt->streams[i].sd)
 141                         return i;
 142         cobalt_err("Invalid adv7604 subdev pointer!\n");
 143         return 0;
 144 }
 145
 146 static void cobalt_notify(struct v4l2_subdev *sd,
 147                           unsigned int notification, void *arg)
 148 {
 149         struct cobalt *cobalt = to_cobalt(sd->v4l2_dev);
 150         unsigned sd_nr = cobalt_get_sd_nr(sd);
 151         struct cobalt_stream *s = &cobalt->streams[sd_nr];
 152         bool hotplug = arg ? *((int *)arg) : false;
 153
 154         if (s->is_output)
 155                 return;
 156
 157         switch (notification) {
 158         case ADV76XX_HOTPLUG:
 159                 cobalt_s_bit_sysctrl(cobalt,
 160                         COBALT_SYS_CTRL_HPD_TO_CONNECTOR_BIT(sd_nr), hotplug);
 161                 cobalt_dbg(1, "Set hotplug for adv %d to %d\n", sd_nr, hotplug);
 162                 break;
 163         case V4L2_DEVICE_NOTIFY_EVENT:
 164                 cobalt_dbg(1, "Format changed for adv %d\n", sd_nr);
 165                 v4l2_event_queue(&s->vdev, arg);
 166                 break;
 167         default:
 168                 break;
 169         }
 170 }
 171
 172 static int get_payload_size(u16 code)
 173 {
 174         switch (code) {
 175         case 0: return 128;
 176         case 1: return 256;
 177         case 2: return 512;
 178         case 3: return 1024;
 179         case 4: return 2048;
 180         case 5: return 4096;
 181         default: return 0;
 182         }
 183         return 0;
 184 }
 185
 186 static const char *get_link_speed(u16 stat)
 187 {
 188         switch (stat & PCI_EXP_LNKSTA_CLS) {
 189         case 1: return "2.5 Gbit/s";
 190         case 2: return "5 Gbit/s";
 191         case 3: return "10 Gbit/s";
 192         }
 193         return "Unknown speed";
 194 }
 195
 196 void cobalt_pcie_status_show(struct cobalt *cobalt)
 197 {
 198         struct pci_dev *pci_dev = cobalt->pci_dev;
 199         struct pci_dev *pci_bus_dev = cobalt->pci_dev->bus->self;
 200         int offset;
 201         int bus_offset;
 202         u32 capa;
 203         u16 stat, ctrl;
 204
 205         offset = pci_find_capability(pci_dev, PCI_CAP_ID_EXP);
 206         bus_offset = pci_find_capability(pci_bus_dev, PCI_CAP_ID_EXP);
 207
 208         /* Device */
 209         pci_read_config_dword(pci_dev, offset + PCI_EXP_DEVCAP, &capa);
 210         pci_read_config_word(pci_dev, offset + PCI_EXP_DEVCTL, &ctrl);
 211         pci_read_config_word(pci_dev, offset + PCI_EXP_DEVSTA, &stat);
 212         cobalt_info("PCIe device capability 0x%08x: Max payload %d\n",
 213                     capa, get_payload_size(capa & PCI_EXP_DEVCAP_PAYLOAD));
 214         cobalt_info("PCIe device control 0x%04x: Max payload %d. Max read request %d\n",
 215                     ctrl,
 216                     get_payload_size((ctrl & PCI_EXP_DEVCTL_PAYLOAD) >> 5),
 217                     get_payload_size((ctrl & PCI_EXP_DEVCTL_READRQ) >> 12));
 218         cobalt_info("PCIe device status 0x%04x\n", stat);
 219
 220         /* Link */
 221         pci_read_config_dword(pci_dev, offset + PCI_EXP_LNKCAP, &capa);
 222         pci_read_config_word(pci_dev, offset + PCI_EXP_LNKCTL, &ctrl);
 223         pci_read_config_word(pci_dev, offset + PCI_EXP_LNKSTA, &stat);
 224         cobalt_info("PCIe link capability 0x%08x: %s per lane and %u lanes\n",
 225                         capa, get_link_speed(capa),
 226                         (capa & PCI_EXP_LNKCAP_MLW) >> 4);
 227         cobalt_info("PCIe link control 0x%04x\n", ctrl);
 228         cobalt_info("PCIe link status 0x%04x: %s per lane and %u lanes\n",
 229                     stat, get_link_speed(stat),
 230                     (stat & PCI_EXP_LNKSTA_NLW) >> 4);
 231
 232         /* Bus */
 233         pci_read_config_dword(pci_bus_dev, bus_offset + PCI_EXP_LNKCAP, &capa);
 234         cobalt_info("PCIe bus link capability 0x%08x: %s per lane and %u lanes\n",
 235                         capa, get_link_speed(capa),
 236                         (capa & PCI_EXP_LNKCAP_MLW) >> 4);
 237
 238         /* Slot */
 239         pci_read_config_dword(pci_dev, offset + PCI_EXP_SLTCAP, &capa);
 240         pci_read_config_word(pci_dev, offset + PCI_EXP_SLTCTL, &ctrl);
 241         pci_read_config_word(pci_dev, offset + PCI_EXP_SLTSTA, &stat);
 242         cobalt_info("PCIe slot capability 0x%08x\n", capa);
 243         cobalt_info("PCIe slot control 0x%04x\n", ctrl);
 244         cobalt_info("PCIe slot status 0x%04x\n", stat);
 245 }
 246
 247 static unsigned pcie_link_get_lanes(struct cobalt *cobalt)
 248 {
 249         struct pci_dev *pci_dev = cobalt->pci_dev;
 250         unsigned offset;
 251         u16 link;
 252
 253         offset = pci_find_capability(pci_dev, PCI_CAP_ID_EXP);
 254         if (!offset)
 255                 return 0;
 256         pci_read_config_word(pci_dev, offset + PCI_EXP_LNKSTA, &link);
 257         return (link & PCI_EXP_LNKSTA_NLW) >> 4;
 258 }
 259
 260 static unsigned pcie_bus_link_get_lanes(struct cobalt *cobalt)
 261 {
 262         struct pci_dev *pci_dev = cobalt->pci_dev->bus->self;
 263         unsigned offset;
 264         u32 link;
 265
 266         offset = pci_find_capability(pci_dev, PCI_CAP_ID_EXP);
 267         if (!offset)
 268                 return 0;
 269         pci_read_config_dword(pci_dev, offset + PCI_EXP_LNKCAP, &link);
 270         return (link & PCI_EXP_LNKCAP_MLW) >> 4;
 271 }
 272
 273 static void msi_config_show(struct cobalt *cobalt, struct pci_dev *pci_dev)
 274 {
 275         u16 ctrl, data;
 276         u32 adrs_l, adrs_h;
 277
 278         pci_read_config_word(pci_dev, 0x52, &ctrl);
 279         cobalt_info("MSI %s\n", ctrl & 1 ? "enable" : "disable");
 280         cobalt_info("MSI multiple message: Capable %u. Enable %u\n",
 281                     (1 << ((ctrl >> 1) & 7)), (1 << ((ctrl >> 4) & 7)));
 282         if (ctrl & 0x80)
 283                 cobalt_info("MSI: 64-bit address capable\n");
 284         pci_read_config_dword(pci_dev, 0x54, &adrs_l);
 285         pci_read_config_dword(pci_dev, 0x58, &adrs_h);
 286         pci_read_config_word(pci_dev, 0x5c, &data);
 287         if (ctrl & 0x80)
 288                 cobalt_info("MSI: Address 0x%08x%08x. Data 0x%04x\n",
 289                                 adrs_h, adrs_l, data);
 290         else
 291                 cobalt_info("MSI: Address 0x%08x. Data 0x%04x\n",
 292                                 adrs_l, data);
 293 }
 294
 295 static void cobalt_pci_iounmap(struct cobalt *cobalt, struct pci_dev *pci_dev)
 296 {
 297         if (cobalt->bar0) {
 298                 pci_iounmap(pci_dev, cobalt->bar0);
 299                 cobalt->bar0 = NULL;
 300         }
 301         if (cobalt->bar1) {
 302                 pci_iounmap(pci_dev, cobalt->bar1);
 303                 cobalt->bar1 = NULL;
 304         }
 305 }
 306
 307 static void cobalt_free_msi(struct cobalt *cobalt, struct pci_dev *pci_dev)
 308 {
 309         free_irq(pci_dev->irq, (void *)cobalt);
 310
 311         if (cobalt->msi_enabled)
 312                 pci_disable_msi(pci_dev);
 313 }
 314
 315 static int cobalt_setup_pci(struct cobalt *cobalt, struct pci_dev *pci_dev,
 316                             const struct pci_device_id *pci_id)
 317 {
 318         u32 ctrl;
 319         int ret;
 320
 321         cobalt_dbg(1, "enabling pci device\n");
 322
 323         ret = pci_enable_device(pci_dev);
 324         if (ret) {
 325                 cobalt_err("can't enable device\n");
 326                 return ret;
 327         }
 328         pci_set_master(pci_dev);
 329         pci_read_config_byte(pci_dev, PCI_CLASS_REVISION, &cobalt->card_rev);
 330         pci_read_config_word(pci_dev, PCI_DEVICE_ID, &cobalt->device_id);
 331
 332         switch (cobalt->device_id) {
 333         case PCI_DEVICE_ID_COBALT:
 334                 cobalt_info("PCI Express interface from Omnitek\n");
 335                 break;
 336         default:
 337                 cobalt_info("PCI Express interface provider is unknown!\n");
 338                 break;
 339         }
 340
 341         if (pcie_link_get_lanes(cobalt) != 8) {
 342                 cobalt_warn("PCI Express link width is %d lanes.\n",
 343                                 pcie_link_get_lanes(cobalt));
 344                 if (pcie_bus_link_get_lanes(cobalt) < 8)
 345                         cobalt_warn("The current slot only supports %d lanes, for best performance 8 are needed\n",
 346                                         pcie_bus_link_get_lanes(cobalt));
 347                 if (pcie_link_get_lanes(cobalt) != pcie_bus_link_get_lanes(cobalt)) {
 348                         cobalt_err("The card is most likely not seated correctly in the PCIe slot\n");
 349                         ret = -EIO;
 350                         goto err_disable;
 351                 }
 352         }
 353
 354         if (pci_set_dma_mask(pci_dev, DMA_BIT_MASK(64))) {
 355                 ret = pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32));
 356                 if (ret) {
 357                         cobalt_err("no suitable DMA available\n");
 358                         goto err_disable;
 359                 }
 360         }
 361
 362         ret = pci_request_regions(pci_dev, "cobalt");
 363         if (ret) {
 364                 cobalt_err("error requesting regions\n");
 365                 goto err_disable;
 366         }
 367
 368         cobalt_pcie_status_show(cobalt);
 369
 370         cobalt->bar0 = pci_iomap(pci_dev, 0, 0);
 371         cobalt->bar1 = pci_iomap(pci_dev, 1, 0);
 372         if (cobalt->bar1 == NULL) {
 373                 cobalt->bar1 = pci_iomap(pci_dev, 2, 0);
 374                 cobalt_info("64-bit BAR\n");
 375         }
 376         if (!cobalt->bar0 || !cobalt->bar1) {
 377                 ret = -EIO;
 378                 goto err_release;
 379         }
 380
 381         /* Reset the video inputs before enabling any interrupts */
 382         ctrl = cobalt_read_bar1(cobalt, COBALT_SYS_CTRL_BASE);
 383         cobalt_write_bar1(cobalt, COBALT_SYS_CTRL_BASE, ctrl & ~0xf00);
 384
 385         /* Disable interrupts to prevent any spurious interrupts
 386            from being generated. */
 387         cobalt_set_interrupt(cobalt, false);
 388
 389         if (pci_enable_msi_range(pci_dev, 1, 1) < 1) {
 390                 cobalt_err("Could not enable MSI\n");
 391                 cobalt->msi_enabled = false;
 392                 ret = -EIO;
 393                 goto err_release;
 394         }
 395         msi_config_show(cobalt, pci_dev);
 396         cobalt->msi_enabled = true;
 397
 398         /* Register IRQ */
 399         if (request_irq(pci_dev->irq, cobalt_irq_handler, IRQF_SHARED,
 400                         cobalt->v4l2_dev.name, (void *)cobalt)) {
 401                 cobalt_err("Failed to register irq %d\n", pci_dev->irq);
 402                 ret = -EIO;
 403                 goto err_msi;
 404         }
 405
 406         omni_sg_dma_init(cobalt);
 407         return 0;
 408
 409 err_msi:
 410         pci_disable_msi(pci_dev);
 411
 412 err_release:
 413         cobalt_pci_iounmap(cobalt, pci_dev);
 414         pci_release_regions(pci_dev);
 415
 416 err_disable:
 417         pci_disable_device(cobalt->pci_dev);
 418         return ret;
 419 }
 420
 421 static int cobalt_hdl_info_get(struct cobalt *cobalt)
 422 {
 423         int i;
 424
 425         for (i = 0; i < COBALT_HDL_INFO_SIZE; i++)
 426                 cobalt->hdl_info[i] =
 427                         ioread8(cobalt->bar1 + COBALT_HDL_INFO_BASE + i);
 428         cobalt->hdl_info[COBALT_HDL_INFO_SIZE - 1] = '\0';
 429         if (strstr(cobalt->hdl_info, COBALT_HDL_SEARCH_STR))
 430                 return 0;
 431
 432         return 1;
 433 }
 434
 435 static void cobalt_stream_struct_init(struct cobalt *cobalt)
 436 {
 437         int i;
 438
 439         for (i = 0; i < COBALT_NUM_STREAMS; i++) {
 440                 struct cobalt_stream *s = &cobalt->streams[i];
 441
 442                 s->cobalt = cobalt;
 443                 s->flags = 0;
 444                 s->is_audio = false;
 445                 s->is_output = false;
 446                 s->is_dummy = true;
 447
 448                 /* The Memory DMA channels will always get a lower channel
 449                  * number than the FIFO DMA. Video input should map to the
 450                  * stream 0-3. The other can use stream struct from 4 and
 451                  * higher */
 452                 if (i <= COBALT_HSMA_IN_NODE) {
 453                         s->dma_channel = i + cobalt->first_fifo_channel;
 454                         s->video_channel = i;
 455                         s->dma_fifo_mask =
 456                                 COBALT_SYSSTAT_VI0_LOST_DATA_MSK << (4 * i);
 457                         s->adv_irq_mask =
 458                                 COBALT_SYSSTAT_VI0_INT1_MSK << (4 * i);
 459                 } else if (i >= COBALT_AUDIO_IN_STREAM &&
 460                            i <= COBALT_AUDIO_IN_STREAM + 4) {
 461                         unsigned idx = i - COBALT_AUDIO_IN_STREAM;
 462
 463                         s->dma_channel = 6 + idx;
 464                         s->is_audio = true;
 465                         s->video_channel = idx;
 466                         s->dma_fifo_mask = COBALT_SYSSTAT_AUD_IN_LOST_DATA_MSK;
 467                 } else if (i == COBALT_HSMA_OUT_NODE) {
 468                         s->dma_channel = 11;
 469                         s->is_output = true;
 470                         s->video_channel = 5;
 471                         s->dma_fifo_mask = COBALT_SYSSTAT_VOHSMA_LOST_DATA_MSK;
 472                         s->adv_irq_mask = COBALT_SYSSTAT_VOHSMA_INT1_MSK;
 473                 } else if (i == COBALT_AUDIO_OUT_STREAM) {
 474                         s->dma_channel = 12;
 475                         s->is_audio = true;
 476                         s->is_output = true;
 477                         s->video_channel = 5;
 478                         s->dma_fifo_mask = COBALT_SYSSTAT_AUD_OUT_LOST_DATA_MSK;
 479                 } else {
 480                         /* FIXME: Memory DMA for debug purpose */
 481                         s->dma_channel = i - COBALT_NUM_NODES;
 482                 }
 483                 cobalt_info("stream #%d -> dma channel #%d <- video channel %d\n",
 484                             i, s->dma_channel, s->video_channel);
 485         }
 486 }
 487
 488 static int cobalt_subdevs_init(struct cobalt *cobalt)
 489 {
 490         static struct adv76xx_platform_data adv7604_pdata = {
 491                 .disable_pwrdnb = 1,
 492                 .ain_sel = ADV7604_AIN7_8_9_NC_SYNC_3_1,
 493                 .bus_order = ADV7604_BUS_ORDER_BRG,
 494                 .blank_data = 1,
 495                 .op_656_range = 1,
 496                 .op_format_mode_sel = ADV7604_OP_FORMAT_MODE0,
 497                 .int1_config = ADV76XX_INT1_CONFIG_ACTIVE_HIGH,
 498                 .dr_str_data = ADV76XX_DR_STR_HIGH,
 499                 .dr_str_clk = ADV76XX_DR_STR_HIGH,
 500                 .dr_str_sync = ADV76XX_DR_STR_HIGH,
 501                 .hdmi_free_run_mode = 1,
 502                 .inv_vs_pol = 1,
 503                 .inv_hs_pol = 1,
 504         };
 505         static struct i2c_board_info adv7604_info = {
 506                 .type = "adv7604",
 507                 .addr = 0x20,
 508                 .platform_data = &adv7604_pdata,
 509         };
 510
 511         struct cobalt_stream *s = cobalt->streams;
 512         int i;
 513
 514         for (i = 0; i < COBALT_NUM_INPUTS; i++) {
 515                 struct v4l2_subdev_format sd_fmt = {
 516                         .pad = ADV7604_PAD_SOURCE,
 517                         .which = V4L2_SUBDEV_FORMAT_ACTIVE,
 518                         .format.code = MEDIA_BUS_FMT_YUYV8_1X16,
 519                 };
 520                 struct v4l2_subdev_edid cobalt_edid = {
 521                         .pad = ADV76XX_PAD_HDMI_PORT_A,
 522                         .start_block = 0,
 523                         .blocks = 2,
 524                         .edid = edid,
 525                 };
 526                 int err;
 527
 528                 s[i].pad_source = ADV7604_PAD_SOURCE;
 529                 s[i].i2c_adap = &cobalt->i2c_adap[i];
 530                 if (s[i].i2c_adap->dev.parent == NULL)
 531                         continue;
 532                 cobalt_s_bit_sysctrl(cobalt,
 533                                 COBALT_SYS_CTRL_NRESET_TO_HDMI_BIT(i), 1);
 534                 s[i].sd = v4l2_i2c_new_subdev_board(&cobalt->v4l2_dev,
 535                         s[i].i2c_adap, &adv7604_info, NULL);
 536                 if (!s[i].sd) {
 537                         if (cobalt_ignore_err)
 538                                 continue;
 539                         return -ENODEV;
 540                 }
 541                 err = v4l2_subdev_call(s[i].sd, video, s_routing,
 542                                 ADV76XX_PAD_HDMI_PORT_A, 0, 0);
 543                 if (err)
 544                         return err;
 545                 err = v4l2_subdev_call(s[i].sd, pad, set_edid,
 546                                 &cobalt_edid);
 547                 if (err)
 548                         return err;
 549                 err = v4l2_subdev_call(s[i].sd, pad, set_fmt, NULL,
 550                                 &sd_fmt);
 551                 if (err)
 552                         return err;
 553                 /* Reset channel video module */
 554                 cobalt_s_bit_sysctrl(cobalt,
 555                                 COBALT_SYS_CTRL_VIDEO_RX_RESETN_BIT(i), 0);
 556                 mdelay(2);
 557                 cobalt_s_bit_sysctrl(cobalt,
 558                                 COBALT_SYS_CTRL_VIDEO_RX_RESETN_BIT(i), 1);
 559                 mdelay(1);
 560                 s[i].is_dummy = false;
 561                 cobalt->streams[i + COBALT_AUDIO_IN_STREAM].is_dummy = false;
 562         }
 563         return 0;
 564 }
 565
 566 static int cobalt_subdevs_hsma_init(struct cobalt *cobalt)
 567 {
 568         static struct adv7842_platform_data adv7842_pdata = {
 569                 .disable_pwrdnb = 1,
 570                 .ain_sel = ADV7842_AIN1_2_3_NC_SYNC_1_2,
 571                 .bus_order = ADV7842_BUS_ORDER_RBG,
 572                 .op_format_mode_sel = ADV7842_OP_FORMAT_MODE0,
 573                 .blank_data = 1,
 574                 .op_656_range = 1,
 575                 .dr_str_data = 3,
 576                 .dr_str_clk = 3,
 577                 .dr_str_sync = 3,
 578                 .mode = ADV7842_MODE_HDMI,
 579                 .hdmi_free_run_enable = 1,
 580                 .vid_std_select = ADV7842_HDMI_COMP_VID_STD_HD_1250P,
 581                 .i2c_sdp_io = 0x4a,
 582                 .i2c_sdp = 0x48,
 583                 .i2c_cp = 0x22,
 584                 .i2c_vdp = 0x24,
 585                 .i2c_afe = 0x26,
 586                 .i2c_hdmi = 0x34,
 587                 .i2c_repeater = 0x32,
 588                 .i2c_edid = 0x36,
 589                 .i2c_infoframe = 0x3e,
 590                 .i2c_cec = 0x40,
 591                 .i2c_avlink = 0x42,
 592         };
 593         static struct i2c_board_info adv7842_info = {
 594                 .type = "adv7842",
 595                 .addr = 0x20,
 596                 .platform_data = &adv7842_pdata,
 597         };
 598         static struct v4l2_subdev_format sd_fmt = {
 599                 .pad = ADV7842_PAD_SOURCE,
 600                 .which = V4L2_SUBDEV_FORMAT_ACTIVE,
 601                 .format.code = MEDIA_BUS_FMT_YUYV8_1X16,
 602         };
 603         static struct adv7511_platform_data adv7511_pdata = {
 604                 .i2c_edid = 0x7e >> 1,
 605                 .i2c_cec = 0x7c >> 1,
 606                 .i2c_pktmem = 0x70 >> 1,
 607                 .cec_clk = 12000000,
 608         };
 609         static struct i2c_board_info adv7511_info = {
 610                 .type = "adv7511",
 611                 .addr = 0x39, /* 0x39 or 0x3d */
 612                 .platform_data = &adv7511_pdata,
 613         };
 614         struct v4l2_subdev_edid cobalt_edid = {
 615                 .pad = ADV7842_EDID_PORT_A,
 616                 .start_block = 0,
 617                 .blocks = 2,
 618                 .edid = edid,
 619         };
 620         struct cobalt_stream *s = &cobalt->streams[COBALT_HSMA_IN_NODE];
 621
 622         s->i2c_adap = &cobalt->i2c_adap[COBALT_NUM_ADAPTERS - 1];
 623         if (s->i2c_adap->dev.parent == NULL)
 624                 return 0;
 625         cobalt_s_bit_sysctrl(cobalt, COBALT_SYS_CTRL_NRESET_TO_HDMI_BIT(4), 1);
 626
 627         s->sd = v4l2_i2c_new_subdev_board(&cobalt->v4l2_dev,
 628                         s->i2c_adap, &adv7842_info, NULL);
 629         if (s->sd) {
 630                 int err = v4l2_subdev_call(s->sd, pad, set_edid, &cobalt_edid);
 631
 632                 if (err)
 633                         return err;
 634                 err = v4l2_subdev_call(s->sd, pad, set_fmt, NULL,
 635                                 &sd_fmt);
 636                 if (err)
 637                         return err;
 638                 cobalt->have_hsma_rx = true;
 639                 s->pad_source = ADV7842_PAD_SOURCE;
 640                 s->is_dummy = false;
 641                 cobalt->streams[4 + COBALT_AUDIO_IN_STREAM].is_dummy = false;
 642                 /* Reset channel video module */
 643                 cobalt_s_bit_sysctrl(cobalt,
 644                                 COBALT_SYS_CTRL_VIDEO_RX_RESETN_BIT(4), 0);
 645                 mdelay(2);
 646                 cobalt_s_bit_sysctrl(cobalt,
 647                                 COBALT_SYS_CTRL_VIDEO_RX_RESETN_BIT(4), 1);
 648                 mdelay(1);
 649                 return err;
 650         }
 651         cobalt_s_bit_sysctrl(cobalt, COBALT_SYS_CTRL_NRESET_TO_HDMI_BIT(4), 0);
 652         cobalt_s_bit_sysctrl(cobalt, COBALT_SYS_CTRL_PWRDN0_TO_HSMA_TX_BIT, 0);
 653         s++;
 654         s->i2c_adap = &cobalt->i2c_adap[COBALT_NUM_ADAPTERS - 1];
 655         s->sd = v4l2_i2c_new_subdev_board(&cobalt->v4l2_dev,
 656                         s->i2c_adap, &adv7511_info, NULL);
 657         if (s->sd) {
 658                 /* A transmitter is hooked up, so we can set this bit */
 659                 cobalt_s_bit_sysctrl(cobalt,
 660                                 COBALT_SYS_CTRL_HSMA_TX_ENABLE_BIT, 1);
 661                 cobalt_s_bit_sysctrl(cobalt,
 662                                 COBALT_SYS_CTRL_VIDEO_RX_RESETN_BIT(4), 0);
 663                 cobalt_s_bit_sysctrl(cobalt,
 664                                 COBALT_SYS_CTRL_VIDEO_TX_RESETN_BIT, 1);
 665                 cobalt->have_hsma_tx = true;
 666                 v4l2_subdev_call(s->sd, core, s_power, 1);
 667                 v4l2_subdev_call(s->sd, video, s_stream, 1);
 668                 v4l2_subdev_call(s->sd, audio, s_stream, 1);
 669                 v4l2_ctrl_s_ctrl(v4l2_ctrl_find(s->sd->ctrl_handler,
 670                                  V4L2_CID_DV_TX_MODE), V4L2_DV_TX_MODE_HDMI);
 671                 s->is_dummy = false;
 672                 cobalt->streams[COBALT_AUDIO_OUT_STREAM].is_dummy = false;
 673                 return 0;
 674         }
 675         return -ENODEV;
 676 }
 677
 678 static int cobalt_probe(struct pci_dev *pci_dev,
 679                                   const struct pci_device_id *pci_id)
 680 {
 681         struct cobalt *cobalt;
 682         int retval = 0;
 683         int i;
 684
 685         /* FIXME - module parameter arrays constrain max instances */
 686         i = atomic_inc_return(&cobalt_instance) - 1;
 687
 688         cobalt = kzalloc(sizeof(struct cobalt), GFP_ATOMIC);
 689         if (cobalt == NULL)
 690                 return -ENOMEM;
 691         cobalt->pci_dev = pci_dev;
 692         cobalt->instance = i;
 693
 694         cobalt->alloc_ctx = vb2_dma_sg_init_ctx(&pci_dev->dev);
 695         if (IS_ERR(cobalt->alloc_ctx)) {
 696                 kfree(cobalt);
 697                 return -ENOMEM;
 698         }
 699
 700         retval = v4l2_device_register(&pci_dev->dev, &cobalt->v4l2_dev);
 701         if (retval) {
 702                 pr_err("cobalt: v4l2_device_register of card %d failed\n",
 703                                 cobalt->instance);
 704                 vb2_dma_sg_cleanup_ctx(cobalt->alloc_ctx);
 705                 kfree(cobalt);
 706                 return retval;
 707         }
 708         snprintf(cobalt->v4l2_dev.name, sizeof(cobalt->v4l2_dev.name),
 709                  "cobalt-%d", cobalt->instance);
 710         cobalt->v4l2_dev.notify = cobalt_notify;
 711         cobalt_info("Initializing card %d\n", cobalt->instance);
 712
 713         cobalt->irq_work_queues =
 714                 create_singlethread_workqueue(cobalt->v4l2_dev.name);
 715         if (cobalt->irq_work_queues == NULL) {
 716                 cobalt_err("Could not create workqueue\n");
 717                 retval = -ENOMEM;
 718                 goto err;
 719         }
 720
 721         INIT_WORK(&cobalt->irq_work_queue, cobalt_irq_work_handler);
 722
 723         /* PCI Device Setup */
 724         retval = cobalt_setup_pci(cobalt, pci_dev, pci_id);
 725         if (retval != 0)
 726                 goto err_wq;
 727
 728         /* Show HDL version info */
 729         if (cobalt_hdl_info_get(cobalt))
 730                 cobalt_info("Not able to read the HDL info\n");
 731         else
 732                 cobalt_info("%s", cobalt->hdl_info);
 733
 734         retval = cobalt_i2c_init(cobalt);
 735         if (retval)
 736                 goto err_pci;
 737
 738         cobalt_stream_struct_init(cobalt);
 739
 740         retval = cobalt_subdevs_init(cobalt);
 741         if (retval)
 742                 goto err_i2c;
 743
 744         if (!(cobalt_read_bar1(cobalt, COBALT_SYS_STAT_BASE) &
 745                         COBALT_SYSSTAT_HSMA_PRSNTN_MSK)) {
 746                 retval = cobalt_subdevs_hsma_init(cobalt);
 747                 if (retval)
 748                         goto err_i2c;
 749         }
 750
 751         retval = v4l2_device_register_subdev_nodes(&cobalt->v4l2_dev);
 752         if (retval)
 753                 goto err_i2c;
 754         retval = cobalt_nodes_register(cobalt);
 755         if (retval) {
 756                 cobalt_err("Error %d registering device nodes\n", retval);
 757                 goto err_i2c;
 758         }
 759         cobalt_set_interrupt(cobalt, true);
 760         v4l2_device_call_all(&cobalt->v4l2_dev, 0, core,
 761                                         interrupt_service_routine, 0, NULL);
 762
 763         cobalt_info("Initialized cobalt card\n");
 764
 765         cobalt_flash_probe(cobalt);
 766
 767         return 0;
 768
 769 err_i2c:
 770         cobalt_i2c_exit(cobalt);
 771         cobalt_s_bit_sysctrl(cobalt, COBALT_SYS_CTRL_HSMA_TX_ENABLE_BIT, 0);
 772 err_pci:
 773         cobalt_free_msi(cobalt, pci_dev);
 774         cobalt_pci_iounmap(cobalt, pci_dev);
 775         pci_release_regions(cobalt->pci_dev);
 776         pci_disable_device(cobalt->pci_dev);
 777 err_wq:
 778         destroy_workqueue(cobalt->irq_work_queues);
 779 err:
 780         if (retval == 0)
 781                 retval = -ENODEV;
 782         cobalt_err("error %d on initialization\n", retval);
 783
 784         v4l2_device_unregister(&cobalt->v4l2_dev);
 785         vb2_dma_sg_cleanup_ctx(cobalt->alloc_ctx);
 786         kfree(cobalt);
 787         return retval;
 788 }
 789
 790 static void cobalt_remove(struct pci_dev *pci_dev)
 791 {
 792         struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
 793         struct cobalt *cobalt = to_cobalt(v4l2_dev);
 794         int i;
 795
 796         cobalt_flash_remove(cobalt);
 797         cobalt_set_interrupt(cobalt, false);
 798         flush_workqueue(cobalt->irq_work_queues);
 799         cobalt_nodes_unregister(cobalt);
 800         for (i = 0; i < COBALT_NUM_ADAPTERS; i++) {
 801                 struct v4l2_subdev *sd = cobalt->streams[i].sd;
 802                 struct i2c_client *client;
 803
 804                 if (sd == NULL)
 805                         continue;
 806                 client = v4l2_get_subdevdata(sd);
 807                 v4l2_device_unregister_subdev(sd);
 808                 i2c_unregister_device(client);
 809         }
 810         cobalt_i2c_exit(cobalt);
 811         cobalt_free_msi(cobalt, pci_dev);
 812         cobalt_s_bit_sysctrl(cobalt, COBALT_SYS_CTRL_HSMA_TX_ENABLE_BIT, 0);
 813         cobalt_pci_iounmap(cobalt, pci_dev);
 814         pci_release_regions(cobalt->pci_dev);
 815         pci_disable_device(cobalt->pci_dev);
 816         destroy_workqueue(cobalt->irq_work_queues);
 817
 818         cobalt_info("removed cobalt card\n");
 819
 820         v4l2_device_unregister(v4l2_dev);
 821         vb2_dma_sg_cleanup_ctx(cobalt->alloc_ctx);
 822         kfree(cobalt);
 823 }
 824
 825 /* define a pci_driver for card detection */
 826 static struct pci_driver cobalt_pci_driver = {
 827         .name =     "cobalt",
 828         .id_table = cobalt_pci_tbl,
 829         .probe =    cobalt_probe,
 830         .remove =   cobalt_remove,
 831 };
 832
 833 module_pci_driver(cobalt_pci_driver);