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 35#include <media/v4l2-common.h> 36#include <media/v4l2-device.h> 37#include <media/tuner.h> 38#include <media/tveeprom.h> 39#include <media/videobuf-dma-sg.h> 40#include <media/videobuf-dvb.h> 41 42#include "btcx-risc.h" 43#include "cx25821-reg.h" 44#include "cx25821-medusa-reg.h" 45#include "cx25821-sram.h" 46#include "cx25821-audio.h" 47#include "media/cx2341x.h" 48 49#include <linux/version.h> 50#include <linux/mutex.h> 51 52#define CX25821_VERSION_CODE KERNEL_VERSION(0, 0, 106) 53 54#define UNSET (-1U) 55#define NO_SYNC_LINE (-1U) 56 57#define CX25821_MAXBOARDS 2 58 59#define TRUE 1 60#define FALSE 0 61#define LINE_SIZE_D1 1440 62 63/* Number of decoders and encoders */ 64#define MAX_DECODERS 8 65#define MAX_ENCODERS 2 66#define QUAD_DECODERS 4 67#define MAX_CAMERAS 16 68 69/* Max number of inputs by card */ 70#define MAX_CX25821_INPUT 8 71#define INPUT(nr) (&cx25821_boards[dev->board].input[nr]) 72#define RESOURCE_VIDEO0 1 73#define RESOURCE_VIDEO1 2 74#define RESOURCE_VIDEO2 4 75#define RESOURCE_VIDEO3 8 76#define RESOURCE_VIDEO4 16 77#define RESOURCE_VIDEO5 32 78#define RESOURCE_VIDEO6 64 79#define RESOURCE_VIDEO7 128 80#define RESOURCE_VIDEO8 256 81#define RESOURCE_VIDEO9 512 82#define RESOURCE_VIDEO10 1024 83#define RESOURCE_VIDEO11 2048 84#define RESOURCE_VIDEO_IOCTL 4096 85 86#define BUFFER_TIMEOUT (HZ) /* 0.5 seconds */ 87 88#define UNKNOWN_BOARD 0 89#define CX25821_BOARD 1 90 91/* Currently supported by the driver */ 92#define CX25821_NORMS (\ 93 V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_JP | V4L2_STD_NTSC_M_KR | \ 94 V4L2_STD_PAL_BG | V4L2_STD_PAL_DK | V4L2_STD_PAL_I | \ 95 V4L2_STD_PAL_M | V4L2_STD_PAL_N | V4L2_STD_PAL_H | \ 96 V4L2_STD_PAL_Nc) 97 98#define CX25821_BOARD_CONEXANT_ATHENA10 1 99#define MAX_VID_CHANNEL_NUM 12 100#define VID_CHANNEL_NUM 8 101#define CX25821_NR_INPUT 2 102 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 183enum port { 184 CX25821_UNDEFINED = 0, 185 CX25821_RAW, 186 CX25821_264 187}; 188 189struct cx25821_board { 190 char *name; 191 enum port porta; 192 enum port portb; 193 enum port portc; 194 unsigned int tuner_type; 195 unsigned int radio_type; 196 unsigned char tuner_addr; 197 unsigned char radio_addr; 198 199 u32 clk_freq; 200 struct cx25821_input input[CX25821_NR_INPUT]; 201}; 202 203struct cx25821_subid { 204 u16 subvendor; 205 u16 subdevice; 206 u32 card; 207}; 208 209struct cx25821_i2c { 210 struct cx25821_dev *dev; 211 212 int nr; 213 214 /* i2c i/o */ 215 struct i2c_adapter i2c_adap; 216 struct i2c_algo_bit_data i2c_algo; 217 struct i2c_client i2c_client; 218 u32 i2c_rc; 219 220 /* cx25821 registers used for raw addess */ 221 u32 i2c_period; 222 u32 reg_ctrl; 223 u32 reg_stat; 224 u32 reg_addr; 225 u32 reg_rdata; 226 u32 reg_wdata; 227}; 228 229struct cx25821_dmaqueue { 230 struct list_head active; 231 struct list_head queued; 232 struct timer_list timeout; 233 struct btcx_riscmem stopper; 234 u32 count; 235}; 236 237struct cx25821_data { 238 struct cx25821_dev *dev; 239 struct sram_channel *channel; 240}; 241 242struct cx25821_channel { 243 struct v4l2_prio_state prio; 244 245 int ctl_bright; 246 int ctl_contrast; 247 int ctl_hue; 248 int ctl_saturation; 249 struct cx25821_data timeout_data; 250 251 struct video_device *video_dev; 252 struct cx25821_dmaqueue vidq; 253 254 struct sram_channel *sram_channels; 255 256 struct mutex lock; 257 int resources; 258 259 int pixel_formats; 260 int use_cif_resolution; 261 int cif_width; 262}; 263 264struct cx25821_dev { 265 struct list_head devlist; 266 atomic_t refcount; 267 struct v4l2_device v4l2_dev; 268 269 /* pci stuff */ 270 struct pci_dev *pci; 271 unsigned char pci_rev, pci_lat; 272 int pci_bus, pci_slot; 273 u32 base_io_addr; 274 u32 __iomem *lmmio; 275 u8 __iomem *bmmio; 276 int pci_irqmask; 277 int hwrevision; 278 279 u32 clk_freq; 280 281 /* I2C adapters: Master 1 & 2 (External) & Master 3 (Internal only) */ 282 struct cx25821_i2c i2c_bus[3]; 283 284 int nr; 285 struct mutex lock; 286 287 struct cx25821_channel channels[MAX_VID_CHANNEL_NUM]; 288 289 /* board details */ 290 unsigned int board; 291 char name[32]; 292 293 /* Analog video */ 294 u32 resources; 295 unsigned int input; 296 u32 tvaudio; 297 v4l2_std_id tvnorm; 298 unsigned int tuner_type; 299 unsigned char tuner_addr; 300 unsigned int radio_type; 301 unsigned char radio_addr; 302 unsigned int has_radio; 303 unsigned int videc_type; 304 unsigned char videc_addr; 305 unsigned short _max_num_decoders; 306 307 /* Analog Audio Upstream */ 308 int _audio_is_running; 309 int _audiopixel_format; 310 int _is_first_audio_frame; 311 int _audiofile_status; 312 int _audio_lines_count; 313 int _audioframe_count; 314 int _audio_upstream_channel; 315 int _last_index_irq; /* The last interrupt index processed. */ 316 317 __le32 *_risc_audio_jmp_addr; 318 __le32 *_risc_virt_start_addr; 319 __le32 *_risc_virt_addr; 320 dma_addr_t _risc_phys_addr; 321 dma_addr_t _risc_phys_start_addr; 322 323 unsigned int _audiorisc_size; 324 unsigned int _audiodata_buf_size; 325 __le32 *_audiodata_buf_virt_addr; 326 dma_addr_t _audiodata_buf_phys_addr; 327 char *_audiofilename; 328 329 /* V4l */ 330 u32 freq; 331 struct video_device *vbi_dev; 332 struct video_device *radio_dev; 333 struct video_device *ioctl_dev; 334 335 spinlock_t slock; 336 337 /* Video Upstream */ 338 int _line_size; 339 int _prog_cnt; 340 int _pixel_format; 341 int _is_first_frame; 342 int _is_running; 343 int _file_status; 344 int _lines_count; 345 int _frame_count; 346 int _channel_upstream_select; 347 unsigned int _risc_size; 348 349 __le32 *_dma_virt_start_addr; 350 __le32 *_dma_virt_addr; 351 dma_addr_t _dma_phys_addr; 352 dma_addr_t _dma_phys_start_addr; 353 354 unsigned int _data_buf_size; 355 __le32 *_data_buf_virt_addr; 356 dma_addr_t _data_buf_phys_addr; 357 char *_filename; 358 char *_defaultname; 359 360 int _line_size_ch2; 361 int _prog_cnt_ch2; 362 int _pixel_format_ch2; 363 int _is_first_frame_ch2; 364 int _is_running_ch2; 365 int _file_status_ch2; 366 int _lines_count_ch2; 367 int _frame_count_ch2; 368 int _channel2_upstream_select; 369 unsigned int _risc_size_ch2; 370 371 __le32 *_dma_virt_start_addr_ch2; 372 __le32 *_dma_virt_addr_ch2; 373 dma_addr_t _dma_phys_addr_ch2; 374 dma_addr_t _dma_phys_start_addr_ch2; 375 376 unsigned int _data_buf_size_ch2; 377 __le32 *_data_buf_virt_addr_ch2; 378 dma_addr_t _data_buf_phys_addr_ch2; 379 char *_filename_ch2; 380 char *_defaultname_ch2; 381 382 /* MPEG Encoder ONLY settings */ 383 u32 cx23417_mailbox; 384 struct cx2341x_mpeg_params mpeg_params; 385 struct video_device *v4l_device; 386 atomic_t v4l_reader_count; 387 struct cx25821_tvnorm encodernorm; 388 389 u32 upstream_riscbuf_size; 390 u32 upstream_databuf_size; 391 u32 upstream_riscbuf_size_ch2; 392 u32 upstream_databuf_size_ch2; 393 u32 audio_upstream_riscbuf_size; 394 u32 audio_upstream_databuf_size; 395 int _isNTSC; 396 int _frame_index; 397 int _audioframe_index; 398 struct workqueue_struct *_irq_queues; 399 struct work_struct _irq_work_entry; 400 struct workqueue_struct *_irq_queues_ch2; 401 struct work_struct _irq_work_entry_ch2; 402 struct workqueue_struct *_irq_audio_queues; 403 struct work_struct _audio_work_entry; 404 char *input_filename; 405 char *input_filename_ch2; 406 int _frame_index_ch2; 407 int _isNTSC_ch2; 408 char *vid_stdname_ch2; 409 int pixel_format_ch2; 410 int channel_select_ch2; 411 int command_ch2; 412 char *input_audiofilename; 413 char *vid_stdname; 414 int pixel_format; 415 int channel_select; 416 int command; 417 int channel_opened; 418}; 419 420struct upstream_user_struct { 421 char *input_filename; 422 char *vid_stdname; 423 int pixel_format; 424 int channel_select; 425 int command; 426}; 427 428struct downstream_user_struct { 429 char *vid_stdname; 430 int pixel_format; 431 int cif_resolution_enable; 432 int cif_width; 433 int decoder_select; 434 int command; 435 int reg_address; 436 int reg_data; 437}; 438 439extern struct upstream_user_struct *up_data; 440 441static inline struct cx25821_dev *get_cx25821(struct v4l2_device *v4l2_dev) 442{ 443 return container_of(v4l2_dev, struct cx25821_dev, v4l2_dev); 444} 445 446#define cx25821_call_all(dev, o, f, args...) \ 447 v4l2_device_call_all(&dev->v4l2_dev, 0, o, f, ##args) 448 449extern struct list_head cx25821_devlist; 450extern struct mutex cx25821_devlist_mutex; 451 452extern struct cx25821_board cx25821_boards[]; 453extern struct cx25821_subid cx25821_subids[]; 454 455#define SRAM_CH00 0 /* Video A */ 456#define SRAM_CH01 1 /* Video B */ 457#define SRAM_CH02 2 /* Video C */ 458#define SRAM_CH03 3 /* Video D */ 459#define SRAM_CH04 4 /* Video E */ 460#define SRAM_CH05 5 /* Video F */ 461#define SRAM_CH06 6 /* Video G */ 462#define SRAM_CH07 7 /* Video H */ 463 464#define SRAM_CH08 8 /* Audio A */ 465#define SRAM_CH09 9 /* Video Upstream I */ 466#define SRAM_CH10 10 /* Video Upstream J */ 467#define SRAM_CH11 11 /* Audio Upstream AUD_CHANNEL_B */ 468 469#define VID_UPSTREAM_SRAM_CHANNEL_I SRAM_CH09 470#define VID_UPSTREAM_SRAM_CHANNEL_J SRAM_CH10 471#define AUDIO_UPSTREAM_SRAM_CHANNEL_B SRAM_CH11 472#define VIDEO_IOCTL_CH 11 473 474struct sram_channel { 475 char *name; 476 u32 i; 477 u32 cmds_start; 478 u32 ctrl_start; 479 u32 cdt; 480 u32 fifo_start; 481 u32 fifo_size; 482 u32 ptr1_reg; 483 u32 ptr2_reg; 484 u32 cnt1_reg; 485 u32 cnt2_reg; 486 u32 int_msk; 487 u32 int_stat; 488 u32 int_mstat; 489 u32 dma_ctl; 490 u32 gpcnt_ctl; 491 u32 gpcnt; 492 u32 aud_length; 493 u32 aud_cfg; 494 u32 fld_aud_fifo_en; 495 u32 fld_aud_risc_en; 496 497 /* For Upstream Video */ 498 u32 vid_fmt_ctl; 499 u32 vid_active_ctl1; 500 u32 vid_active_ctl2; 501 u32 vid_cdt_size; 502 503 u32 vip_ctl; 504 u32 pix_frmt; 505 u32 jumponly; 506 u32 irq_bit; 507}; 508extern struct sram_channel cx25821_sram_channels[]; 509 510#define STATUS_SUCCESS 0 511#define STATUS_UNSUCCESSFUL -1 512 513#define cx_read(reg) readl(dev->lmmio + ((reg)>>2)) 514#define cx_write(reg, value) writel((value), dev->lmmio + ((reg)>>2)) 515 516#define cx_andor(reg, mask, value) \ 517 writel((readl(dev->lmmio+((reg)>>2)) & ~(mask)) |\ 518 ((value) & (mask)), dev->lmmio+((reg)>>2)) 519 520#define cx_set(reg, bit) cx_andor((reg), (bit), (bit)) 521#define cx_clear(reg, bit) cx_andor((reg), (bit), 0) 522 523#define Set_GPIO_Bit(Bit) (1 << Bit) 524#define Clear_GPIO_Bit(Bit) (~(1 << Bit)) 525 526#define CX25821_ERR(fmt, args...) \ 527 pr_err("(%d): " fmt, dev->board, ##args) 528#define CX25821_WARN(fmt, args...) \ 529 pr_warn("(%d): " fmt, dev->board, ##args) 530#define CX25821_INFO(fmt, args...) \ 531 pr_info("(%d): " fmt, dev->board, ##args) 532 533extern int cx25821_i2c_register(struct cx25821_i2c *bus); 534extern void cx25821_card_setup(struct cx25821_dev *dev); 535extern int cx25821_ir_init(struct cx25821_dev *dev); 536extern int cx25821_i2c_read(struct cx25821_i2c *bus, u16 reg_addr, int *value); 537extern int cx25821_i2c_write(struct cx25821_i2c *bus, u16 reg_addr, int value); 538extern int cx25821_i2c_unregister(struct cx25821_i2c *bus); 539extern void cx25821_gpio_init(struct cx25821_dev *dev); 540extern void cx25821_set_gpiopin_direction(struct cx25821_dev *dev, 541 int pin_number, int pin_logic_value); 542 543extern int medusa_video_init(struct cx25821_dev *dev); 544extern int medusa_set_videostandard(struct cx25821_dev *dev); 545extern void medusa_set_resolution(struct cx25821_dev *dev, int width, 546 int decoder_select); 547extern int medusa_set_brightness(struct cx25821_dev *dev, int brightness, 548 int decoder); 549extern int medusa_set_contrast(struct cx25821_dev *dev, int contrast, 550 int decoder); 551extern int medusa_set_hue(struct cx25821_dev *dev, int hue, int decoder); 552extern int medusa_set_saturation(struct cx25821_dev *dev, int saturation, 553 int decoder); 554 555extern int cx25821_sram_channel_setup(struct cx25821_dev *dev, 556 struct sram_channel *ch, unsigned int bpl, 557 u32 risc); 558 559extern int cx25821_risc_buffer(struct pci_dev *pci, struct btcx_riscmem *risc, 560 struct scatterlist *sglist, 561 unsigned int top_offset, 562 unsigned int bottom_offset, 563 unsigned int bpl, 564 unsigned int padding, unsigned int lines); 565extern int cx25821_risc_databuffer_audio(struct pci_dev *pci, 566 struct btcx_riscmem *risc, 567 struct scatterlist *sglist, 568 unsigned int bpl, 569 unsigned int lines, unsigned int lpi); 570extern void cx25821_free_buffer(struct videobuf_queue *q, 571 struct cx25821_buffer *buf); 572extern int cx25821_risc_stopper(struct pci_dev *pci, struct btcx_riscmem *risc, 573 u32 reg, u32 mask, u32 value); 574extern void cx25821_sram_channel_dump(struct cx25821_dev *dev, 575 struct sram_channel *ch); 576extern void cx25821_sram_channel_dump_audio(struct cx25821_dev *dev, 577 struct sram_channel *ch); 578 579extern struct cx25821_dev *cx25821_dev_get(struct pci_dev *pci); 580extern void cx25821_print_irqbits(char *name, char *tag, char **strings, 581 int len, u32 bits, u32 mask); 582extern void cx25821_dev_unregister(struct cx25821_dev *dev); 583extern int cx25821_sram_channel_setup_audio(struct cx25821_dev *dev, 584 struct sram_channel *ch, 585 unsigned int bpl, u32 risc); 586 587extern int cx25821_vidupstream_init_ch1(struct cx25821_dev *dev, 588 int channel_select, int pixel_format); 589extern int cx25821_vidupstream_init_ch2(struct cx25821_dev *dev, 590 int channel_select, int pixel_format); 591extern int cx25821_audio_upstream_init(struct cx25821_dev *dev, 592 int channel_select); 593extern void cx25821_free_mem_upstream_ch1(struct cx25821_dev *dev); 594extern void cx25821_free_mem_upstream_ch2(struct cx25821_dev *dev); 595extern void cx25821_free_mem_upstream_audio(struct cx25821_dev *dev); 596extern void cx25821_start_upstream_video_ch1(struct cx25821_dev *dev, 597 struct upstream_user_struct 598 *up_data); 599extern void cx25821_start_upstream_video_ch2(struct cx25821_dev *dev, 600 struct upstream_user_struct 601 *up_data); 602extern void cx25821_start_upstream_audio(struct cx25821_dev *dev, 603 struct upstream_user_struct *up_data); 604extern void cx25821_stop_upstream_video_ch1(struct cx25821_dev *dev); 605extern void cx25821_stop_upstream_video_ch2(struct cx25821_dev *dev); 606extern void cx25821_stop_upstream_audio(struct cx25821_dev *dev); 607extern int cx25821_sram_channel_setup_upstream(struct cx25821_dev *dev, 608 struct sram_channel *ch, 609 unsigned int bpl, u32 risc); 610extern void cx25821_set_pixel_format(struct cx25821_dev *dev, int channel, 611 u32 format); 612extern void cx25821_videoioctl_unregister(struct cx25821_dev *dev); 613extern struct video_device *cx25821_vdev_init(struct cx25821_dev *dev, 614 struct pci_dev *pci, 615 struct video_device *template, 616 char *type); 617#endif 618