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 20 #ifndef CX25821_H_ 21 #define CX25821_H_ 22 23 #include <linux/pci.h> 24 #include <linux/i2c.h> 25 #include <linux/interrupt.h> 26 #include <linux/delay.h> 27 #include <linux/sched.h> 28 #include <linux/kdev_t.h> 29 30 #include <media/v4l2-common.h> 31 #include <media/v4l2-device.h> 32 #include <media/v4l2-ctrls.h> 33 #include <media/videobuf2-v4l2.h> 34 #include <media/videobuf2-dma-sg.h> 35 36 #include "cx25821-reg.h" 37 #include "cx25821-medusa-reg.h" 38 #include "cx25821-sram.h" 39 #include "cx25821-audio.h" 40 41 #include <linux/version.h> 42 #include <linux/mutex.h> 43 44 #define CX25821_VERSION_CODE KERNEL_VERSION(0, 0, 106) 45 46 #define UNSET (-1U) 47 #define NO_SYNC_LINE (-1U) 48 49 #define CX25821_MAXBOARDS 2 50 51 #define LINE_SIZE_D1 1440 52 53 /* Number of decoders and encoders */ 54 #define MAX_DECODERS 8 55 #define MAX_ENCODERS 2 56 #define QUAD_DECODERS 4 57 #define MAX_CAMERAS 16 58 59 /* Max number of inputs by card */ 60 #define MAX_CX25821_INPUT 8 61 #define RESOURCE_VIDEO0 1 62 #define RESOURCE_VIDEO1 2 63 #define RESOURCE_VIDEO2 4 64 #define RESOURCE_VIDEO3 8 65 #define RESOURCE_VIDEO4 16 66 #define RESOURCE_VIDEO5 32 67 #define RESOURCE_VIDEO6 64 68 #define RESOURCE_VIDEO7 128 69 #define RESOURCE_VIDEO8 256 70 #define RESOURCE_VIDEO9 512 71 #define RESOURCE_VIDEO10 1024 72 #define RESOURCE_VIDEO11 2048 73 74 #define BUFFER_TIMEOUT (HZ) /* 0.5 seconds */ 75 76 #define UNKNOWN_BOARD 0 77 #define CX25821_BOARD 1 78 79 /* Currently supported by the driver */ 80 #define CX25821_NORMS (\ 81 V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_JP | V4L2_STD_NTSC_M_KR | \ 82 V4L2_STD_PAL_BG | V4L2_STD_PAL_DK | V4L2_STD_PAL_I | \ 83 V4L2_STD_PAL_M | V4L2_STD_PAL_N | V4L2_STD_PAL_H | \ 84 V4L2_STD_PAL_Nc) 85 86 #define CX25821_BOARD_CONEXANT_ATHENA10 1 87 #define MAX_VID_CHANNEL_NUM 12 88 89 /* 90 * Maximum capture-only channels. This can go away once video/audio output 91 * is fully supported in this driver. 92 */ 93 #define MAX_VID_CAP_CHANNEL_NUM 10 94 95 #define VID_CHANNEL_NUM 8 96 97 struct cx25821_fmt { 98 char *name; 99 u32 fourcc; /* v4l2 format id */ 100 int depth; 101 int flags; 102 u32 cxformat; 103 }; 104 105 struct cx25821_tvnorm { 106 char *name; 107 v4l2_std_id id; 108 u32 cxiformat; 109 u32 cxoformat; 110 }; 111 112 enum cx25821_src_sel_type { 113 CX25821_SRC_SEL_EXT_656_VIDEO = 0, 114 CX25821_SRC_SEL_PARALLEL_MPEG_VIDEO 115 }; 116 117 struct cx25821_riscmem { 118 unsigned int size; 119 __le32 *cpu; 120 __le32 *jmp; 121 dma_addr_t dma; 122 }; 123 124 /* buffer for one video frame */ 125 struct cx25821_buffer { 126 /* common v4l buffer stuff -- must be first */ 127 struct vb2_v4l2_buffer vb; 128 struct list_head queue; 129 130 /* cx25821 specific */ 131 unsigned int bpl; 132 struct cx25821_riscmem risc; 133 const struct cx25821_fmt *fmt; 134 }; 135 136 enum port { 137 CX25821_UNDEFINED = 0, 138 CX25821_RAW, 139 CX25821_264 140 }; 141 142 struct cx25821_board { 143 const char *name; 144 enum port porta; 145 enum port portb; 146 enum port portc; 147 148 u32 clk_freq; 149 }; 150 151 struct cx25821_i2c { 152 struct cx25821_dev *dev; 153 154 int nr; 155 156 /* i2c i/o */ 157 struct i2c_adapter i2c_adap; 158 struct i2c_client i2c_client; 159 u32 i2c_rc; 160 161 /* cx25821 registers used for raw addess */ 162 u32 i2c_period; 163 u32 reg_ctrl; 164 u32 reg_stat; 165 u32 reg_addr; 166 u32 reg_rdata; 167 u32 reg_wdata; 168 }; 169 170 struct cx25821_dmaqueue { 171 struct list_head active; 172 u32 count; 173 }; 174 175 struct cx25821_dev; 176 177 struct cx25821_channel; 178 179 struct cx25821_video_out_data { 180 struct cx25821_channel *chan; 181 int _line_size; 182 int _prog_cnt; 183 int _pixel_format; 184 int _is_first_frame; 185 int _is_running; 186 int _file_status; 187 int _lines_count; 188 int _frame_count; 189 unsigned int _risc_size; 190 191 __le32 *_dma_virt_start_addr; 192 __le32 *_dma_virt_addr; 193 dma_addr_t _dma_phys_addr; 194 dma_addr_t _dma_phys_start_addr; 195 196 unsigned int _data_buf_size; 197 __le32 *_data_buf_virt_addr; 198 dma_addr_t _data_buf_phys_addr; 199 200 u32 upstream_riscbuf_size; 201 u32 upstream_databuf_size; 202 int is_60hz; 203 int _frame_index; 204 int cur_frame_index; 205 int curpos; 206 wait_queue_head_t waitq; 207 }; 208 209 struct cx25821_channel { 210 unsigned id; 211 struct cx25821_dev *dev; 212 213 struct v4l2_ctrl_handler hdl; 214 215 struct video_device vdev; 216 struct cx25821_dmaqueue dma_vidq; 217 struct vb2_queue vidq; 218 219 const struct sram_channel *sram_channels; 220 221 const struct cx25821_fmt *fmt; 222 unsigned field; 223 unsigned int width, height; 224 int pixel_formats; 225 int use_cif_resolution; 226 int cif_width; 227 228 /* video output data for the video output channel */ 229 struct cx25821_video_out_data *out; 230 }; 231 232 struct snd_card; 233 234 struct cx25821_dev { 235 struct v4l2_device v4l2_dev; 236 237 /* pci stuff */ 238 struct pci_dev *pci; 239 unsigned char pci_rev, pci_lat; 240 int pci_bus, pci_slot; 241 u32 base_io_addr; 242 u32 __iomem *lmmio; 243 u8 __iomem *bmmio; 244 int pci_irqmask; 245 int hwrevision; 246 /* used by cx25821-alsa */ 247 struct snd_card *card; 248 249 u32 clk_freq; 250 251 /* I2C adapters: Master 1 & 2 (External) & Master 3 (Internal only) */ 252 struct cx25821_i2c i2c_bus[3]; 253 254 int nr; 255 struct mutex lock; 256 257 struct cx25821_channel channels[MAX_VID_CHANNEL_NUM]; 258 259 /* board details */ 260 unsigned int board; 261 char name[32]; 262 263 /* Analog video */ 264 unsigned int input; 265 v4l2_std_id tvnorm; 266 unsigned short _max_num_decoders; 267 268 /* Analog Audio Upstream */ 269 int _audio_is_running; 270 int _audiopixel_format; 271 int _is_first_audio_frame; 272 int _audiofile_status; 273 int _audio_lines_count; 274 int _audioframe_count; 275 int _audio_upstream_channel; 276 int _last_index_irq; /* The last interrupt index processed. */ 277 278 __le32 *_risc_audio_jmp_addr; 279 __le32 *_risc_virt_start_addr; 280 __le32 *_risc_virt_addr; 281 dma_addr_t _risc_phys_addr; 282 dma_addr_t _risc_phys_start_addr; 283 284 unsigned int _audiorisc_size; 285 unsigned int _audiodata_buf_size; 286 __le32 *_audiodata_buf_virt_addr; 287 dma_addr_t _audiodata_buf_phys_addr; 288 char *_audiofilename; 289 u32 audio_upstream_riscbuf_size; 290 u32 audio_upstream_databuf_size; 291 int _audioframe_index; 292 struct work_struct _audio_work_entry; 293 char *input_audiofilename; 294 295 /* V4l */ 296 spinlock_t slock; 297 298 /* Video Upstream */ 299 struct cx25821_video_out_data vid_out_data[2]; 300 }; 301 302 static inline struct cx25821_dev *get_cx25821(struct v4l2_device *v4l2_dev) 303 { 304 return container_of(v4l2_dev, struct cx25821_dev, v4l2_dev); 305 } 306 307 extern struct cx25821_board cx25821_boards[]; 308 309 #define SRAM_CH00 0 /* Video A */ 310 #define SRAM_CH01 1 /* Video B */ 311 #define SRAM_CH02 2 /* Video C */ 312 #define SRAM_CH03 3 /* Video D */ 313 #define SRAM_CH04 4 /* Video E */ 314 #define SRAM_CH05 5 /* Video F */ 315 #define SRAM_CH06 6 /* Video G */ 316 #define SRAM_CH07 7 /* Video H */ 317 318 #define SRAM_CH08 8 /* Audio A */ 319 #define SRAM_CH09 9 /* Video Upstream I */ 320 #define SRAM_CH10 10 /* Video Upstream J */ 321 #define SRAM_CH11 11 /* Audio Upstream AUD_CHANNEL_B */ 322 323 #define VID_UPSTREAM_SRAM_CHANNEL_I SRAM_CH09 324 #define VID_UPSTREAM_SRAM_CHANNEL_J SRAM_CH10 325 #define AUDIO_UPSTREAM_SRAM_CHANNEL_B SRAM_CH11 326 327 struct sram_channel { 328 char *name; 329 u32 i; 330 u32 cmds_start; 331 u32 ctrl_start; 332 u32 cdt; 333 u32 fifo_start; 334 u32 fifo_size; 335 u32 ptr1_reg; 336 u32 ptr2_reg; 337 u32 cnt1_reg; 338 u32 cnt2_reg; 339 u32 int_msk; 340 u32 int_stat; 341 u32 int_mstat; 342 u32 dma_ctl; 343 u32 gpcnt_ctl; 344 u32 gpcnt; 345 u32 aud_length; 346 u32 aud_cfg; 347 u32 fld_aud_fifo_en; 348 u32 fld_aud_risc_en; 349 350 /* For Upstream Video */ 351 u32 vid_fmt_ctl; 352 u32 vid_active_ctl1; 353 u32 vid_active_ctl2; 354 u32 vid_cdt_size; 355 356 u32 vip_ctl; 357 u32 pix_frmt; 358 u32 jumponly; 359 u32 irq_bit; 360 }; 361 362 extern const struct sram_channel cx25821_sram_channels[]; 363 364 #define cx_read(reg) readl(dev->lmmio + ((reg)>>2)) 365 #define cx_write(reg, value) writel((value), dev->lmmio + ((reg)>>2)) 366 367 #define cx_andor(reg, mask, value) \ 368 writel((readl(dev->lmmio+((reg)>>2)) & ~(mask)) |\ 369 ((value) & (mask)), dev->lmmio+((reg)>>2)) 370 371 #define cx_set(reg, bit) cx_andor((reg), (bit), (bit)) 372 #define cx_clear(reg, bit) cx_andor((reg), (bit), 0) 373 374 #define Set_GPIO_Bit(Bit) (1 << Bit) 375 #define Clear_GPIO_Bit(Bit) (~(1 << Bit)) 376 377 #define CX25821_ERR(fmt, args...) \ 378 pr_err("(%d): " fmt, dev->board, ##args) 379 #define CX25821_WARN(fmt, args...) \ 380 pr_warn("(%d): " fmt, dev->board, ##args) 381 #define CX25821_INFO(fmt, args...) \ 382 pr_info("(%d): " fmt, dev->board, ##args) 383 384 extern int cx25821_i2c_register(struct cx25821_i2c *bus); 385 extern int cx25821_i2c_read(struct cx25821_i2c *bus, u16 reg_addr, int *value); 386 extern int cx25821_i2c_write(struct cx25821_i2c *bus, u16 reg_addr, int value); 387 extern int cx25821_i2c_unregister(struct cx25821_i2c *bus); 388 extern void cx25821_gpio_init(struct cx25821_dev *dev); 389 extern void cx25821_set_gpiopin_direction(struct cx25821_dev *dev, 390 int pin_number, int pin_logic_value); 391 392 extern int medusa_video_init(struct cx25821_dev *dev); 393 extern int medusa_set_videostandard(struct cx25821_dev *dev); 394 extern void medusa_set_resolution(struct cx25821_dev *dev, int width, 395 int decoder_select); 396 extern int medusa_set_brightness(struct cx25821_dev *dev, int brightness, 397 int decoder); 398 extern int medusa_set_contrast(struct cx25821_dev *dev, int contrast, 399 int decoder); 400 extern int medusa_set_hue(struct cx25821_dev *dev, int hue, int decoder); 401 extern int medusa_set_saturation(struct cx25821_dev *dev, int saturation, 402 int decoder); 403 404 extern int cx25821_sram_channel_setup(struct cx25821_dev *dev, 405 const struct sram_channel *ch, unsigned int bpl, 406 u32 risc); 407 408 extern int cx25821_riscmem_alloc(struct pci_dev *pci, 409 struct cx25821_riscmem *risc, 410 unsigned int size); 411 extern int cx25821_risc_buffer(struct pci_dev *pci, struct cx25821_riscmem *risc, 412 struct scatterlist *sglist, 413 unsigned int top_offset, 414 unsigned int bottom_offset, 415 unsigned int bpl, 416 unsigned int padding, unsigned int lines); 417 extern int cx25821_risc_databuffer_audio(struct pci_dev *pci, 418 struct cx25821_riscmem *risc, 419 struct scatterlist *sglist, 420 unsigned int bpl, 421 unsigned int lines, unsigned int lpi); 422 extern void cx25821_free_buffer(struct cx25821_dev *dev, 423 struct cx25821_buffer *buf); 424 extern void cx25821_sram_channel_dump(struct cx25821_dev *dev, 425 const struct sram_channel *ch); 426 extern void cx25821_sram_channel_dump_audio(struct cx25821_dev *dev, 427 const struct sram_channel *ch); 428 429 extern struct cx25821_dev *cx25821_dev_get(struct pci_dev *pci); 430 extern void cx25821_print_irqbits(char *name, char *tag, char **strings, 431 int len, u32 bits, u32 mask); 432 extern void cx25821_dev_unregister(struct cx25821_dev *dev); 433 extern int cx25821_sram_channel_setup_audio(struct cx25821_dev *dev, 434 const struct sram_channel *ch, 435 unsigned int bpl, u32 risc); 436 437 extern int cx25821_vidupstream_init(struct cx25821_channel *chan, int pixel_format); 438 extern int cx25821_audio_upstream_init(struct cx25821_dev *dev, 439 int channel_select); 440 extern int cx25821_write_frame(struct cx25821_channel *chan, 441 const char __user *data, size_t count); 442 extern void cx25821_free_mem_upstream(struct cx25821_channel *chan); 443 extern void cx25821_free_mem_upstream_audio(struct cx25821_dev *dev); 444 extern void cx25821_stop_upstream_video(struct cx25821_channel *chan); 445 extern void cx25821_stop_upstream_audio(struct cx25821_dev *dev); 446 extern int cx25821_sram_channel_setup_upstream(struct cx25821_dev *dev, 447 const struct sram_channel *ch, 448 unsigned int bpl, u32 risc); 449 extern void cx25821_set_pixel_format(struct cx25821_dev *dev, int channel, 450 u32 format); 451 452 #endif 453