1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * Driver for the Conexant CX25821 PCIe bridge 4 * 5 * Copyright (C) 2009 Conexant Systems Inc. 6 * Authors <shu.lin@conexant.com>, <hiep.huynh@conexant.com> 7 * Based on Steven Toth <stoth@linuxtv.org> cx23885 driver 8 */ 9 10 #ifndef CX25821_H_ 11 #define CX25821_H_ 12 13 #include <linux/pci.h> 14 #include <linux/i2c.h> 15 #include <linux/interrupt.h> 16 #include <linux/delay.h> 17 #include <linux/sched.h> 18 #include <linux/kdev_t.h> 19 20 #include <media/v4l2-common.h> 21 #include <media/v4l2-device.h> 22 #include <media/v4l2-ctrls.h> 23 #include <media/videobuf2-v4l2.h> 24 #include <media/videobuf2-dma-sg.h> 25 26 #include "cx25821-reg.h" 27 #include "cx25821-medusa-reg.h" 28 #include "cx25821-sram.h" 29 #include "cx25821-audio.h" 30 31 #include <linux/version.h> 32 #include <linux/mutex.h> 33 34 #define UNSET (-1U) 35 #define NO_SYNC_LINE (-1U) 36 37 #define CX25821_MAXBOARDS 2 38 39 #define LINE_SIZE_D1 1440 40 41 /* Number of decoders and encoders */ 42 #define MAX_DECODERS 8 43 #define MAX_ENCODERS 2 44 #define QUAD_DECODERS 4 45 #define MAX_CAMERAS 16 46 47 /* Max number of inputs by card */ 48 #define MAX_CX25821_INPUT 8 49 #define RESOURCE_VIDEO0 1 50 #define RESOURCE_VIDEO1 2 51 #define RESOURCE_VIDEO2 4 52 #define RESOURCE_VIDEO3 8 53 #define RESOURCE_VIDEO4 16 54 #define RESOURCE_VIDEO5 32 55 #define RESOURCE_VIDEO6 64 56 #define RESOURCE_VIDEO7 128 57 #define RESOURCE_VIDEO8 256 58 #define RESOURCE_VIDEO9 512 59 #define RESOURCE_VIDEO10 1024 60 #define RESOURCE_VIDEO11 2048 61 62 #define BUFFER_TIMEOUT (HZ) /* 0.5 seconds */ 63 64 #define UNKNOWN_BOARD 0 65 #define CX25821_BOARD 1 66 67 /* Currently supported by the driver */ 68 #define CX25821_NORMS (\ 69 V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_JP | V4L2_STD_NTSC_M_KR | \ 70 V4L2_STD_PAL_BG | V4L2_STD_PAL_DK | V4L2_STD_PAL_I | \ 71 V4L2_STD_PAL_M | V4L2_STD_PAL_N | V4L2_STD_PAL_H | \ 72 V4L2_STD_PAL_Nc) 73 74 #define CX25821_BOARD_CONEXANT_ATHENA10 1 75 #define MAX_VID_CHANNEL_NUM 12 76 77 /* 78 * Maximum capture-only channels. This can go away once video/audio output 79 * is fully supported in this driver. 80 */ 81 #define MAX_VID_CAP_CHANNEL_NUM 10 82 83 #define VID_CHANNEL_NUM 8 84 85 struct cx25821_fmt { 86 u32 fourcc; /* v4l2 format id */ 87 int depth; 88 int flags; 89 u32 cxformat; 90 }; 91 92 struct cx25821_tvnorm { 93 char *name; 94 v4l2_std_id id; 95 u32 cxiformat; 96 u32 cxoformat; 97 }; 98 99 enum cx25821_src_sel_type { 100 CX25821_SRC_SEL_EXT_656_VIDEO = 0, 101 CX25821_SRC_SEL_PARALLEL_MPEG_VIDEO 102 }; 103 104 struct cx25821_riscmem { 105 unsigned int size; 106 __le32 *cpu; 107 __le32 *jmp; 108 dma_addr_t dma; 109 }; 110 111 /* buffer for one video frame */ 112 struct cx25821_buffer { 113 /* common v4l buffer stuff -- must be first */ 114 struct vb2_v4l2_buffer vb; 115 struct list_head queue; 116 117 /* cx25821 specific */ 118 unsigned int bpl; 119 struct cx25821_riscmem risc; 120 const struct cx25821_fmt *fmt; 121 }; 122 123 enum port { 124 CX25821_UNDEFINED = 0, 125 CX25821_RAW, 126 CX25821_264 127 }; 128 129 struct cx25821_board { 130 const char *name; 131 enum port porta; 132 enum port portb; 133 enum port portc; 134 135 u32 clk_freq; 136 }; 137 138 struct cx25821_i2c { 139 struct cx25821_dev *dev; 140 141 int nr; 142 143 /* i2c i/o */ 144 struct i2c_adapter i2c_adap; 145 struct i2c_client i2c_client; 146 u32 i2c_rc; 147 148 /* cx25821 registers used for raw address */ 149 u32 i2c_period; 150 u32 reg_ctrl; 151 u32 reg_stat; 152 u32 reg_addr; 153 u32 reg_rdata; 154 u32 reg_wdata; 155 }; 156 157 struct cx25821_dmaqueue { 158 struct list_head active; 159 u32 count; 160 }; 161 162 struct cx25821_dev; 163 164 struct cx25821_channel; 165 166 struct cx25821_video_out_data { 167 struct cx25821_channel *chan; 168 int _line_size; 169 int _prog_cnt; 170 int _pixel_format; 171 int _is_first_frame; 172 int _is_running; 173 int _file_status; 174 int _lines_count; 175 int _frame_count; 176 unsigned int _risc_size; 177 178 __le32 *_dma_virt_start_addr; 179 __le32 *_dma_virt_addr; 180 dma_addr_t _dma_phys_addr; 181 dma_addr_t _dma_phys_start_addr; 182 183 unsigned int _data_buf_size; 184 __le32 *_data_buf_virt_addr; 185 dma_addr_t _data_buf_phys_addr; 186 187 u32 upstream_riscbuf_size; 188 u32 upstream_databuf_size; 189 int is_60hz; 190 int _frame_index; 191 int cur_frame_index; 192 int curpos; 193 wait_queue_head_t waitq; 194 }; 195 196 struct cx25821_channel { 197 unsigned id; 198 struct cx25821_dev *dev; 199 200 struct v4l2_ctrl_handler hdl; 201 202 struct video_device vdev; 203 struct cx25821_dmaqueue dma_vidq; 204 struct vb2_queue vidq; 205 206 const struct sram_channel *sram_channels; 207 208 const struct cx25821_fmt *fmt; 209 unsigned field; 210 unsigned int width, height; 211 int pixel_formats; 212 int use_cif_resolution; 213 int cif_width; 214 215 /* video output data for the video output channel */ 216 struct cx25821_video_out_data *out; 217 }; 218 219 struct snd_card; 220 221 struct cx25821_dev { 222 struct v4l2_device v4l2_dev; 223 224 /* pci stuff */ 225 struct pci_dev *pci; 226 unsigned char pci_rev, pci_lat; 227 int pci_bus, pci_slot; 228 u32 base_io_addr; 229 u32 __iomem *lmmio; 230 u8 __iomem *bmmio; 231 int pci_irqmask; 232 int hwrevision; 233 /* used by cx25821-alsa */ 234 struct snd_card *card; 235 236 u32 clk_freq; 237 238 /* I2C adapters: Master 1 & 2 (External) & Master 3 (Internal only) */ 239 struct cx25821_i2c i2c_bus[3]; 240 241 int nr; 242 struct mutex lock; 243 244 struct cx25821_channel channels[MAX_VID_CHANNEL_NUM]; 245 246 /* board details */ 247 unsigned int board; 248 char name[32]; 249 250 /* Analog video */ 251 unsigned int input; 252 v4l2_std_id tvnorm; 253 unsigned short _max_num_decoders; 254 255 /* Analog Audio Upstream */ 256 int _audio_is_running; 257 int _audiopixel_format; 258 int _is_first_audio_frame; 259 int _audiofile_status; 260 int _audio_lines_count; 261 int _audioframe_count; 262 int _audio_upstream_channel; 263 int _last_index_irq; /* The last interrupt index processed. */ 264 265 __le32 *_risc_audio_jmp_addr; 266 __le32 *_risc_virt_start_addr; 267 __le32 *_risc_virt_addr; 268 dma_addr_t _risc_phys_addr; 269 dma_addr_t _risc_phys_start_addr; 270 271 unsigned int _audiorisc_size; 272 unsigned int _audiodata_buf_size; 273 __le32 *_audiodata_buf_virt_addr; 274 dma_addr_t _audiodata_buf_phys_addr; 275 char *_audiofilename; 276 u32 audio_upstream_riscbuf_size; 277 u32 audio_upstream_databuf_size; 278 int _audioframe_index; 279 struct work_struct _audio_work_entry; 280 char *input_audiofilename; 281 282 /* V4l */ 283 spinlock_t slock; 284 285 /* Video Upstream */ 286 struct cx25821_video_out_data vid_out_data[2]; 287 }; 288 289 static inline struct cx25821_dev *get_cx25821(struct v4l2_device *v4l2_dev) 290 { 291 return container_of(v4l2_dev, struct cx25821_dev, v4l2_dev); 292 } 293 294 extern struct cx25821_board cx25821_boards[]; 295 296 #define SRAM_CH00 0 /* Video A */ 297 #define SRAM_CH01 1 /* Video B */ 298 #define SRAM_CH02 2 /* Video C */ 299 #define SRAM_CH03 3 /* Video D */ 300 #define SRAM_CH04 4 /* Video E */ 301 #define SRAM_CH05 5 /* Video F */ 302 #define SRAM_CH06 6 /* Video G */ 303 #define SRAM_CH07 7 /* Video H */ 304 305 #define SRAM_CH08 8 /* Audio A */ 306 #define SRAM_CH09 9 /* Video Upstream I */ 307 #define SRAM_CH10 10 /* Video Upstream J */ 308 #define SRAM_CH11 11 /* Audio Upstream AUD_CHANNEL_B */ 309 310 #define VID_UPSTREAM_SRAM_CHANNEL_I SRAM_CH09 311 #define VID_UPSTREAM_SRAM_CHANNEL_J SRAM_CH10 312 #define AUDIO_UPSTREAM_SRAM_CHANNEL_B SRAM_CH11 313 314 struct sram_channel { 315 char *name; 316 u32 i; 317 u32 cmds_start; 318 u32 ctrl_start; 319 u32 cdt; 320 u32 fifo_start; 321 u32 fifo_size; 322 u32 ptr1_reg; 323 u32 ptr2_reg; 324 u32 cnt1_reg; 325 u32 cnt2_reg; 326 u32 int_msk; 327 u32 int_stat; 328 u32 int_mstat; 329 u32 dma_ctl; 330 u32 gpcnt_ctl; 331 u32 gpcnt; 332 u32 aud_length; 333 u32 aud_cfg; 334 u32 fld_aud_fifo_en; 335 u32 fld_aud_risc_en; 336 337 /* For Upstream Video */ 338 u32 vid_fmt_ctl; 339 u32 vid_active_ctl1; 340 u32 vid_active_ctl2; 341 u32 vid_cdt_size; 342 343 u32 vip_ctl; 344 u32 pix_frmt; 345 u32 jumponly; 346 u32 irq_bit; 347 }; 348 349 extern const struct sram_channel cx25821_sram_channels[]; 350 351 #define cx_read(reg) readl(dev->lmmio + ((reg)>>2)) 352 #define cx_write(reg, value) writel((value), dev->lmmio + ((reg)>>2)) 353 354 #define cx_andor(reg, mask, value) \ 355 writel((readl(dev->lmmio+((reg)>>2)) & ~(mask)) |\ 356 ((value) & (mask)), dev->lmmio+((reg)>>2)) 357 358 #define cx_set(reg, bit) cx_andor((reg), (bit), (bit)) 359 #define cx_clear(reg, bit) cx_andor((reg), (bit), 0) 360 361 #define Set_GPIO_Bit(Bit) (1 << Bit) 362 #define Clear_GPIO_Bit(Bit) (~(1 << Bit)) 363 364 #define CX25821_ERR(fmt, args...) \ 365 pr_err("(%d): " fmt, dev->board, ##args) 366 #define CX25821_WARN(fmt, args...) \ 367 pr_warn("(%d): " fmt, dev->board, ##args) 368 #define CX25821_INFO(fmt, args...) \ 369 pr_info("(%d): " fmt, dev->board, ##args) 370 371 extern int cx25821_i2c_register(struct cx25821_i2c *bus); 372 extern int cx25821_i2c_read(struct cx25821_i2c *bus, u16 reg_addr, int *value); 373 extern int cx25821_i2c_write(struct cx25821_i2c *bus, u16 reg_addr, int value); 374 extern int cx25821_i2c_unregister(struct cx25821_i2c *bus); 375 extern void cx25821_gpio_init(struct cx25821_dev *dev); 376 extern void cx25821_set_gpiopin_direction(struct cx25821_dev *dev, 377 int pin_number, int pin_logic_value); 378 379 extern int medusa_video_init(struct cx25821_dev *dev); 380 extern int medusa_set_videostandard(struct cx25821_dev *dev); 381 extern void medusa_set_resolution(struct cx25821_dev *dev, int width, 382 int decoder_select); 383 extern int medusa_set_brightness(struct cx25821_dev *dev, int brightness, 384 int decoder); 385 extern int medusa_set_contrast(struct cx25821_dev *dev, int contrast, 386 int decoder); 387 extern int medusa_set_hue(struct cx25821_dev *dev, int hue, int decoder); 388 extern int medusa_set_saturation(struct cx25821_dev *dev, int saturation, 389 int decoder); 390 391 extern int cx25821_sram_channel_setup(struct cx25821_dev *dev, 392 const struct sram_channel *ch, unsigned int bpl, 393 u32 risc); 394 395 extern int cx25821_riscmem_alloc(struct pci_dev *pci, 396 struct cx25821_riscmem *risc, 397 unsigned int size); 398 extern int cx25821_risc_buffer(struct pci_dev *pci, struct cx25821_riscmem *risc, 399 struct scatterlist *sglist, 400 unsigned int top_offset, 401 unsigned int bottom_offset, 402 unsigned int bpl, 403 unsigned int padding, unsigned int lines); 404 extern int cx25821_risc_databuffer_audio(struct pci_dev *pci, 405 struct cx25821_riscmem *risc, 406 struct scatterlist *sglist, 407 unsigned int bpl, 408 unsigned int lines, unsigned int lpi); 409 extern void cx25821_free_buffer(struct cx25821_dev *dev, 410 struct cx25821_buffer *buf); 411 extern void cx25821_sram_channel_dump(struct cx25821_dev *dev, 412 const struct sram_channel *ch); 413 extern void cx25821_sram_channel_dump_audio(struct cx25821_dev *dev, 414 const struct sram_channel *ch); 415 416 extern struct cx25821_dev *cx25821_dev_get(struct pci_dev *pci); 417 extern void cx25821_print_irqbits(char *name, char *tag, char **strings, 418 int len, u32 bits, u32 mask); 419 extern void cx25821_dev_unregister(struct cx25821_dev *dev); 420 extern int cx25821_sram_channel_setup_audio(struct cx25821_dev *dev, 421 const struct sram_channel *ch, 422 unsigned int bpl, u32 risc); 423 424 extern void cx25821_set_pixel_format(struct cx25821_dev *dev, int channel, 425 u32 format); 426 427 #endif 428