1/* 2 * Driver for the Conexant CX25821 PCIe bridge 3 * 4 * Copyright (C) 2009 Conexant Systems Inc. 5 * Authors <shu.lin@conexant.com>, <hiep.huynh@conexant.com> 6 * Based on Steven Toth <stoth@linuxtv.org> cx23885 driver 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * 17 * GNU General Public License for more details. 18 * 19 * You should have received a copy of the GNU General Public License 20 * along with this program; if not, write to the Free Software 21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 22 */ 23 24#ifndef CX25821_H_ 25#define CX25821_H_ 26 27#include <linux/pci.h> 28#include <linux/i2c.h> 29#include <linux/i2c-algo-bit.h> 30#include <linux/interrupt.h> 31#include <linux/delay.h> 32#include <linux/sched.h> 33#include <linux/kdev_t.h> 34#include <linux/smp_lock.h> 35 36#include <media/v4l2-common.h> 37#include <media/v4l2-device.h> 38#include <media/tuner.h> 39#include <media/tveeprom.h> 40#include <media/videobuf-dma-sg.h> 41#include <media/videobuf-dvb.h> 42 43#include "btcx-risc.h" 44#include "cx25821-reg.h" 45#include "cx25821-medusa-reg.h" 46#include "cx25821-sram.h" 47#include "cx25821-audio.h" 48#include "media/cx2341x.h" 49 50#include <linux/version.h> 51#include <linux/mutex.h> 52 53#define CX25821_VERSION_CODE KERNEL_VERSION(0, 0, 106) 54 55#define UNSET (-1U) 56#define NO_SYNC_LINE (-1U) 57 58#define CX25821_MAXBOARDS 2 59 60#define TRUE 1 61#define FALSE 0 62#define LINE_SIZE_D1 1440 63 64/* Number of decoders and encoders */ 65#define MAX_DECODERS 8 66#define MAX_ENCODERS 2 67#define QUAD_DECODERS 4 68#define MAX_CAMERAS 16 69 70/* Max number of inputs by card */ 71#define MAX_CX25821_INPUT 8 72#define INPUT(nr) (&cx25821_boards[dev->board].input[nr]) 73#define RESOURCE_VIDEO0 1 74#define RESOURCE_VIDEO1 2 75#define RESOURCE_VIDEO2 4 76#define RESOURCE_VIDEO3 8 77#define RESOURCE_VIDEO4 16 78#define RESOURCE_VIDEO5 32 79#define RESOURCE_VIDEO6 64 80#define RESOURCE_VIDEO7 128 81#define RESOURCE_VIDEO8 256 82#define RESOURCE_VIDEO9 512 83#define RESOURCE_VIDEO10 1024 84#define RESOURCE_VIDEO11 2048 85#define RESOURCE_VIDEO_IOCTL 4096 86 87#define BUFFER_TIMEOUT (HZ) /* 0.5 seconds */ 88 89#define UNKNOWN_BOARD 0 90#define CX25821_BOARD 1 91 92/* Currently supported by the driver */ 93#define CX25821_NORMS (\ 94 V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_JP | V4L2_STD_NTSC_M_KR | \ 95 V4L2_STD_PAL_BG | V4L2_STD_PAL_DK | V4L2_STD_PAL_I | \ 96 V4L2_STD_PAL_M | V4L2_STD_PAL_N | V4L2_STD_PAL_H | \ 97 V4L2_STD_PAL_Nc ) 98 99#define CX25821_BOARD_CONEXANT_ATHENA10 1 100#define MAX_VID_CHANNEL_NUM 12 101#define VID_CHANNEL_NUM 8 102 103struct cx25821_fmt { 104 char *name; 105 u32 fourcc; /* v4l2 format id */ 106 int depth; 107 int flags; 108 u32 cxformat; 109}; 110 111struct cx25821_ctrl { 112 struct v4l2_queryctrl v; 113 u32 off; 114 u32 reg; 115 u32 mask; 116 u32 shift; 117}; 118 119struct cx25821_tvnorm { 120 char *name; 121 v4l2_std_id id; 122 u32 cxiformat; 123 u32 cxoformat; 124}; 125 126struct cx25821_fh { 127 struct cx25821_dev *dev; 128 enum v4l2_buf_type type; 129 int radio; 130 u32 resources; 131 132 enum v4l2_priority prio; 133 134 /* video overlay */ 135 struct v4l2_window win; 136 struct v4l2_clip *clips; 137 unsigned int nclips; 138 139 /* video capture */ 140 struct cx25821_fmt *fmt; 141 unsigned int width, height; 142 int channel_id; 143 144 /* vbi capture */ 145 struct videobuf_queue vidq; 146 struct videobuf_queue vbiq; 147 148 /* H264 Encoder specifics ONLY */ 149 struct videobuf_queue mpegq; 150 atomic_t v4l_reading; 151}; 152 153enum cx25821_itype { 154 CX25821_VMUX_COMPOSITE = 1, 155 CX25821_VMUX_SVIDEO, 156 CX25821_VMUX_DEBUG, 157 CX25821_RADIO, 158}; 159 160enum cx25821_src_sel_type { 161 CX25821_SRC_SEL_EXT_656_VIDEO = 0, 162 CX25821_SRC_SEL_PARALLEL_MPEG_VIDEO 163}; 164 165/* buffer for one video frame */ 166struct cx25821_buffer { 167 /* common v4l buffer stuff -- must be first */ 168 struct videobuf_buffer vb; 169 170 /* cx25821 specific */ 171 unsigned int bpl; 172 struct btcx_riscmem risc; 173 struct cx25821_fmt *fmt; 174 u32 count; 175}; 176 177struct cx25821_input { 178 enum cx25821_itype type; 179 unsigned int vmux; 180 u32 gpio0, gpio1, gpio2, gpio3; 181}; 182 183typedef enum { 184 CX25821_UNDEFINED = 0, 185 CX25821_RAW, 186 CX25821_264 187} port_t; 188 189struct cx25821_board { 190 char *name; 191 port_t porta, portb, portc; 192 unsigned int tuner_type; 193 unsigned int radio_type; 194 unsigned char tuner_addr; 195 unsigned char radio_addr; 196 197 u32 clk_freq; 198 struct cx25821_input input[2]; 199}; 200 201struct cx25821_subid { 202 u16 subvendor; 203 u16 subdevice; 204 u32 card; 205}; 206 207struct cx25821_i2c { 208 struct cx25821_dev *dev; 209 210 int nr; 211 212 /* i2c i/o */ 213 struct i2c_adapter i2c_adap; 214 struct i2c_algo_bit_data i2c_algo; 215 struct i2c_client i2c_client; 216 u32 i2c_rc; 217 218 /* cx25821 registers used for raw addess */ 219 u32 i2c_period; 220 u32 reg_ctrl; 221 u32 reg_stat; 222 u32 reg_addr; 223 u32 reg_rdata; 224 u32 reg_wdata; 225}; 226 227struct cx25821_dmaqueue { 228 struct list_head active; 229 struct list_head queued; 230 struct timer_list timeout; 231 struct btcx_riscmem stopper; 232 u32 count; 233}; 234 235struct cx25821_data { 236 struct cx25821_dev *dev; 237 struct sram_channel *channel; 238}; 239 240struct cx25821_channel { 241 struct v4l2_prio_state prio; 242 243 int ctl_bright; 244 int ctl_contrast; 245 int ctl_hue; 246 int ctl_saturation; 247 248 struct cx25821_data timeout_data; 249 250 struct video_device *video_dev; 251 struct cx25821_dmaqueue vidq; 252 253 struct sram_channel *sram_channels; 254 255 struct mutex lock; 256 int resources; 257 258 int pixel_formats; 259 int use_cif_resolution; 260 int cif_width; 261}; 262 263struct cx25821_dev { 264 struct list_head devlist; 265 atomic_t refcount; 266 struct v4l2_device v4l2_dev; 267 268 /* pci stuff */ 269 struct pci_dev *pci; 270 unsigned char pci_rev, pci_lat; 271 int pci_bus, pci_slot; 272 u32 base_io_addr; 273 u32 __iomem *lmmio; 274 u8 __iomem *bmmio; 275 int pci_irqmask; 276 int hwrevision; 277 278 u32 clk_freq; 279 280 /* I2C adapters: Master 1 & 2 (External) & Master 3 (Internal only) */ 281 struct cx25821_i2c i2c_bus[3]; 282 283 int nr; 284 struct mutex lock; 285 286 struct cx25821_channel channels[MAX_VID_CHANNEL_NUM]; 287 288 /* board details */ 289 unsigned int board; 290 char name[32]; 291 292 /* Analog video */ 293 u32 resources; 294 unsigned int input; 295 u32 tvaudio; 296 v4l2_std_id tvnorm; 297 unsigned int tuner_type; 298 unsigned char tuner_addr; 299 unsigned int radio_type; 300 unsigned char radio_addr; 301 unsigned int has_radio; 302 unsigned int videc_type; 303 unsigned char videc_addr; 304 unsigned short _max_num_decoders; 305 306 /* Analog Audio Upstream */ 307 int _audio_is_running; 308 int _audiopixel_format; 309 int _is_first_audio_frame; 310 int _audiofile_status; 311 int _audio_lines_count; 312 int _audioframe_count; 313 int _audio_upstream_channel_select; 314 int _last_index_irq; /* The last interrupt index processed. */ 315 316 __le32 *_risc_audio_jmp_addr; 317 __le32 *_risc_virt_start_addr; 318 __le32 *_risc_virt_addr; 319 dma_addr_t _risc_phys_addr; 320 dma_addr_t _risc_phys_start_addr; 321 322 unsigned int _audiorisc_size; 323 unsigned int _audiodata_buf_size; 324 __le32 *_audiodata_buf_virt_addr; 325 dma_addr_t _audiodata_buf_phys_addr; 326 char *_audiofilename; 327 328 /* V4l */ 329 u32 freq; 330 struct video_device *vbi_dev; 331 struct video_device *radio_dev; 332 struct video_device *ioctl_dev; 333 334 spinlock_t slock; 335 336 /* Video Upstream */ 337 int _line_size; 338 int _prog_cnt; 339 int _pixel_format; 340 int _is_first_frame; 341 int _is_running; 342 int _file_status; 343 int _lines_count; 344 int _frame_count; 345 int _channel_upstream_select; 346 unsigned int _risc_size; 347 348 __le32 *_dma_virt_start_addr; 349 __le32 *_dma_virt_addr; 350 dma_addr_t _dma_phys_addr; 351 dma_addr_t _dma_phys_start_addr; 352 353 unsigned int _data_buf_size; 354 __le32 *_data_buf_virt_addr; 355 dma_addr_t _data_buf_phys_addr; 356 char *_filename; 357 char *_defaultname; 358 359 int _line_size_ch2; 360 int _prog_cnt_ch2; 361 int _pixel_format_ch2; 362 int _is_first_frame_ch2; 363 int _is_running_ch2; 364 int _file_status_ch2; 365 int _lines_count_ch2; 366 int _frame_count_ch2; 367 int _channel2_upstream_select; 368 unsigned int _risc_size_ch2; 369 370 __le32 *_dma_virt_start_addr_ch2; 371 __le32 *_dma_virt_addr_ch2; 372 dma_addr_t _dma_phys_addr_ch2; 373 dma_addr_t _dma_phys_start_addr_ch2; 374 375 unsigned int _data_buf_size_ch2; 376 __le32 *_data_buf_virt_addr_ch2; 377 dma_addr_t _data_buf_phys_addr_ch2; 378 char *_filename_ch2; 379 char *_defaultname_ch2; 380 381 /* MPEG Encoder ONLY settings */ 382 u32 cx23417_mailbox; 383 struct cx2341x_mpeg_params mpeg_params; 384 struct video_device *v4l_device; 385 atomic_t v4l_reader_count; 386 struct cx25821_tvnorm encodernorm; 387 388 u32 upstream_riscbuf_size; 389 u32 upstream_databuf_size; 390 u32 upstream_riscbuf_size_ch2; 391 u32 upstream_databuf_size_ch2; 392 u32 audio_upstream_riscbuf_size; 393 u32 audio_upstream_databuf_size; 394 int _isNTSC; 395 int _frame_index; 396 int _audioframe_index; 397 struct workqueue_struct *_irq_queues; 398 struct work_struct _irq_work_entry; 399 struct workqueue_struct *_irq_queues_ch2; 400 struct work_struct _irq_work_entry_ch2; 401 struct workqueue_struct *_irq_audio_queues; 402 struct work_struct _audio_work_entry; 403 char *input_filename; 404 char *input_filename_ch2; 405 int _frame_index_ch2; 406 int _isNTSC_ch2; 407 char *vid_stdname_ch2; 408 int pixel_format_ch2; 409 int channel_select_ch2; 410 int command_ch2; 411 char *input_audiofilename; 412 char *vid_stdname; 413 int pixel_format; 414 int channel_select; 415 int command; 416 int channel_opened; 417}; 418 419struct upstream_user_struct { 420 char *input_filename; 421 char *vid_stdname; 422 int pixel_format; 423 int channel_select; 424 int command; 425}; 426 427struct downstream_user_struct { 428 char *vid_stdname; 429 int pixel_format; 430 int cif_resolution_enable; 431 int cif_width; 432 int decoder_select; 433 int command; 434 int reg_address; 435 int reg_data; 436}; 437 438extern struct upstream_user_struct *up_data; 439 440static inline struct cx25821_dev *get_cx25821(struct v4l2_device *v4l2_dev) 441{ 442 return container_of(v4l2_dev, struct cx25821_dev, v4l2_dev); 443} 444 445#define cx25821_call_all(dev, o, f, args...) \ 446 v4l2_device_call_all(&dev->v4l2_dev, 0, o, f, ##args) 447 448extern struct list_head cx25821_devlist; 449extern struct cx25821_board cx25821_boards[]; 450extern struct cx25821_subid cx25821_subids[]; 451 452#define SRAM_CH00 0 /* Video A */ 453#define SRAM_CH01 1 /* Video B */ 454#define SRAM_CH02 2 /* Video C */ 455#define SRAM_CH03 3 /* Video D */ 456#define SRAM_CH04 4 /* Video E */ 457#define SRAM_CH05 5 /* Video F */ 458#define SRAM_CH06 6 /* Video G */ 459#define SRAM_CH07 7 /* Video H */ 460 461#define SRAM_CH08 8 /* Audio A */ 462#define SRAM_CH09 9 /* Video Upstream I */ 463#define SRAM_CH10 10 /* Video Upstream J */ 464#define SRAM_CH11 11 /* Audio Upstream AUD_CHANNEL_B */ 465 466#define VID_UPSTREAM_SRAM_CHANNEL_I SRAM_CH09 467#define VID_UPSTREAM_SRAM_CHANNEL_J SRAM_CH10 468#define AUDIO_UPSTREAM_SRAM_CHANNEL_B SRAM_CH11 469#define VIDEO_IOCTL_CH 11 470 471struct sram_channel { 472 char *name; 473 u32 i; 474 u32 cmds_start; 475 u32 ctrl_start; 476 u32 cdt; 477 u32 fifo_start; 478 u32 fifo_size; 479 u32 ptr1_reg; 480 u32 ptr2_reg; 481 u32 cnt1_reg; 482 u32 cnt2_reg; 483 u32 int_msk; 484 u32 int_stat; 485 u32 int_mstat; 486 u32 dma_ctl; 487 u32 gpcnt_ctl; 488 u32 gpcnt; 489 u32 aud_length; 490 u32 aud_cfg; 491 u32 fld_aud_fifo_en; 492 u32 fld_aud_risc_en; 493 494 /* For Upstream Video */ 495 u32 vid_fmt_ctl; 496 u32 vid_active_ctl1; 497 u32 vid_active_ctl2; 498 u32 vid_cdt_size; 499 500 u32 vip_ctl; 501 u32 pix_frmt; 502 u32 jumponly; 503 u32 irq_bit; 504}; 505extern struct sram_channel cx25821_sram_channels[]; 506 507#define STATUS_SUCCESS 0 508#define STATUS_UNSUCCESSFUL -1 509 510#define cx_read(reg) readl(dev->lmmio + ((reg)>>2)) 511#define cx_write(reg, value) writel((value), dev->lmmio + ((reg)>>2)) 512 513#define cx_andor(reg, mask, value) \ 514 writel((readl(dev->lmmio+((reg)>>2)) & ~(mask)) |\ 515 ((value) & (mask)), dev->lmmio+((reg)>>2)) 516 517#define cx_set(reg, bit) cx_andor((reg), (bit), (bit)) 518#define cx_clear(reg, bit) cx_andor((reg), (bit), 0) 519 520#define Set_GPIO_Bit(Bit) (1 << Bit) 521#define Clear_GPIO_Bit(Bit) (~(1 << Bit)) 522 523#define CX25821_ERR(fmt, args...) printk(KERN_ERR "cx25821(%d): " fmt, dev->board, ## args) 524#define CX25821_WARN(fmt, args...) printk(KERN_WARNING "cx25821(%d): " fmt, dev->board , ## args) 525#define CX25821_INFO(fmt, args...) printk(KERN_INFO "cx25821(%d): " fmt, dev->board , ## args) 526 527extern int cx25821_i2c_register(struct cx25821_i2c *bus); 528extern void cx25821_card_setup(struct cx25821_dev *dev); 529extern int cx25821_ir_init(struct cx25821_dev *dev); 530extern int cx25821_i2c_read(struct cx25821_i2c *bus, u16 reg_addr, int *value); 531extern int cx25821_i2c_write(struct cx25821_i2c *bus, u16 reg_addr, int value); 532extern int cx25821_i2c_unregister(struct cx25821_i2c *bus); 533extern void cx25821_gpio_init(struct cx25821_dev *dev); 534extern void cx25821_set_gpiopin_direction(struct cx25821_dev *dev, 535 int pin_number, int pin_logic_value); 536 537extern int medusa_video_init(struct cx25821_dev *dev); 538extern int medusa_set_videostandard(struct cx25821_dev *dev); 539extern void medusa_set_resolution(struct cx25821_dev *dev, int width, 540 int decoder_select); 541extern int medusa_set_brightness(struct cx25821_dev *dev, int brightness, 542 int decoder); 543extern int medusa_set_contrast(struct cx25821_dev *dev, int contrast, 544 int decoder); 545extern int medusa_set_hue(struct cx25821_dev *dev, int hue, int decoder); 546extern int medusa_set_saturation(struct cx25821_dev *dev, int saturation, 547 int decoder); 548 549extern int cx25821_sram_channel_setup(struct cx25821_dev *dev, 550 struct sram_channel *ch, unsigned int bpl, 551 u32 risc); 552 553extern int cx25821_risc_buffer(struct pci_dev *pci, struct btcx_riscmem *risc, 554 struct scatterlist *sglist, 555 unsigned int top_offset, 556 unsigned int bottom_offset, 557 unsigned int bpl, 558 unsigned int padding, unsigned int lines); 559extern int cx25821_risc_databuffer_audio(struct pci_dev *pci, 560 struct btcx_riscmem *risc, 561 struct scatterlist *sglist, 562 unsigned int bpl, 563 unsigned int lines, unsigned int lpi); 564extern void cx25821_free_buffer(struct videobuf_queue *q, 565 struct cx25821_buffer *buf); 566extern int cx25821_risc_stopper(struct pci_dev *pci, struct btcx_riscmem *risc, 567 u32 reg, u32 mask, u32 value); 568extern void cx25821_sram_channel_dump(struct cx25821_dev *dev, 569 struct sram_channel *ch); 570extern void cx25821_sram_channel_dump_audio(struct cx25821_dev *dev, 571 struct sram_channel *ch); 572 573extern struct cx25821_dev *cx25821_dev_get(struct pci_dev *pci); 574extern void cx25821_print_irqbits(char *name, char *tag, char **strings, 575 int len, u32 bits, u32 mask); 576extern void cx25821_dev_unregister(struct cx25821_dev *dev); 577extern int cx25821_sram_channel_setup_audio(struct cx25821_dev *dev, 578 struct sram_channel *ch, 579 unsigned int bpl, u32 risc); 580 581extern int cx25821_vidupstream_init_ch1(struct cx25821_dev *dev, 582 int channel_select, int pixel_format); 583extern int cx25821_vidupstream_init_ch2(struct cx25821_dev *dev, 584 int channel_select, int pixel_format); 585extern int cx25821_audio_upstream_init(struct cx25821_dev *dev, 586 int channel_select); 587extern void cx25821_free_mem_upstream_ch1(struct cx25821_dev *dev); 588extern void cx25821_free_mem_upstream_ch2(struct cx25821_dev *dev); 589extern void cx25821_free_mem_upstream_audio(struct cx25821_dev *dev); 590extern void cx25821_start_upstream_video_ch1(struct cx25821_dev *dev, 591 struct upstream_user_struct 592 *up_data); 593extern void cx25821_start_upstream_video_ch2(struct cx25821_dev *dev, 594 struct upstream_user_struct 595 *up_data); 596extern void cx25821_start_upstream_audio(struct cx25821_dev *dev, 597 struct upstream_user_struct *up_data); 598extern void cx25821_stop_upstream_video_ch1(struct cx25821_dev *dev); 599extern void cx25821_stop_upstream_video_ch2(struct cx25821_dev *dev); 600extern void cx25821_stop_upstream_audio(struct cx25821_dev *dev); 601extern int cx25821_sram_channel_setup_upstream(struct cx25821_dev *dev, 602 struct sram_channel *ch, 603 unsigned int bpl, u32 risc); 604extern void cx25821_set_pixel_format(struct cx25821_dev *dev, int channel, 605 u32 format); 606extern void cx25821_videoioctl_unregister(struct cx25821_dev *dev); 607extern struct video_device *cx25821_vdev_init(struct cx25821_dev *dev, 608 struct pci_dev *pci, 609 struct video_device *template, 610 char *type); 611#endif 612