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 char *name; 87 u32 fourcc; /* v4l2 format id */ 88 int depth; 89 int flags; 90 u32 cxformat; 91 }; 92 93 struct cx25821_tvnorm { 94 char *name; 95 v4l2_std_id id; 96 u32 cxiformat; 97 u32 cxoformat; 98 }; 99 100 enum cx25821_src_sel_type { 101 CX25821_SRC_SEL_EXT_656_VIDEO = 0, 102 CX25821_SRC_SEL_PARALLEL_MPEG_VIDEO 103 }; 104 105 struct cx25821_riscmem { 106 unsigned int size; 107 __le32 *cpu; 108 __le32 *jmp; 109 dma_addr_t dma; 110 }; 111 112 /* buffer for one video frame */ 113 struct cx25821_buffer { 114 /* common v4l buffer stuff -- must be first */ 115 struct vb2_v4l2_buffer vb; 116 struct list_head queue; 117 118 /* cx25821 specific */ 119 unsigned int bpl; 120 struct cx25821_riscmem risc; 121 const struct cx25821_fmt *fmt; 122 }; 123 124 enum port { 125 CX25821_UNDEFINED = 0, 126 CX25821_RAW, 127 CX25821_264 128 }; 129 130 struct cx25821_board { 131 const char *name; 132 enum port porta; 133 enum port portb; 134 enum port portc; 135 136 u32 clk_freq; 137 }; 138 139 struct cx25821_i2c { 140 struct cx25821_dev *dev; 141 142 int nr; 143 144 /* i2c i/o */ 145 struct i2c_adapter i2c_adap; 146 struct i2c_client i2c_client; 147 u32 i2c_rc; 148 149 /* cx25821 registers used for raw address */ 150 u32 i2c_period; 151 u32 reg_ctrl; 152 u32 reg_stat; 153 u32 reg_addr; 154 u32 reg_rdata; 155 u32 reg_wdata; 156 }; 157 158 struct cx25821_dmaqueue { 159 struct list_head active; 160 u32 count; 161 }; 162 163 struct cx25821_dev; 164 165 struct cx25821_channel; 166 167 struct cx25821_video_out_data { 168 struct cx25821_channel *chan; 169 int _line_size; 170 int _prog_cnt; 171 int _pixel_format; 172 int _is_first_frame; 173 int _is_running; 174 int _file_status; 175 int _lines_count; 176 int _frame_count; 177 unsigned int _risc_size; 178 179 __le32 *_dma_virt_start_addr; 180 __le32 *_dma_virt_addr; 181 dma_addr_t _dma_phys_addr; 182 dma_addr_t _dma_phys_start_addr; 183 184 unsigned int _data_buf_size; 185 __le32 *_data_buf_virt_addr; 186 dma_addr_t _data_buf_phys_addr; 187 188 u32 upstream_riscbuf_size; 189 u32 upstream_databuf_size; 190 int is_60hz; 191 int _frame_index; 192 int cur_frame_index; 193 int curpos; 194 wait_queue_head_t waitq; 195 }; 196 197 struct cx25821_channel { 198 unsigned id; 199 struct cx25821_dev *dev; 200 201 struct v4l2_ctrl_handler hdl; 202 203 struct video_device vdev; 204 struct cx25821_dmaqueue dma_vidq; 205 struct vb2_queue vidq; 206 207 const struct sram_channel *sram_channels; 208 209 const struct cx25821_fmt *fmt; 210 unsigned field; 211 unsigned int width, height; 212 int pixel_formats; 213 int use_cif_resolution; 214 int cif_width; 215 216 /* video output data for the video output channel */ 217 struct cx25821_video_out_data *out; 218 }; 219 220 struct snd_card; 221 222 struct cx25821_dev { 223 struct v4l2_device v4l2_dev; 224 225 /* pci stuff */ 226 struct pci_dev *pci; 227 unsigned char pci_rev, pci_lat; 228 int pci_bus, pci_slot; 229 u32 base_io_addr; 230 u32 __iomem *lmmio; 231 u8 __iomem *bmmio; 232 int pci_irqmask; 233 int hwrevision; 234 /* used by cx25821-alsa */ 235 struct snd_card *card; 236 237 u32 clk_freq; 238 239 /* I2C adapters: Master 1 & 2 (External) & Master 3 (Internal only) */ 240 struct cx25821_i2c i2c_bus[3]; 241 242 int nr; 243 struct mutex lock; 244 245 struct cx25821_channel channels[MAX_VID_CHANNEL_NUM]; 246 247 /* board details */ 248 unsigned int board; 249 char name[32]; 250 251 /* Analog video */ 252 unsigned int input; 253 v4l2_std_id tvnorm; 254 unsigned short _max_num_decoders; 255 256 /* Analog Audio Upstream */ 257 int _audio_is_running; 258 int _audiopixel_format; 259 int _is_first_audio_frame; 260 int _audiofile_status; 261 int _audio_lines_count; 262 int _audioframe_count; 263 int _audio_upstream_channel; 264 int _last_index_irq; /* The last interrupt index processed. */ 265 266 __le32 *_risc_audio_jmp_addr; 267 __le32 *_risc_virt_start_addr; 268 __le32 *_risc_virt_addr; 269 dma_addr_t _risc_phys_addr; 270 dma_addr_t _risc_phys_start_addr; 271 272 unsigned int _audiorisc_size; 273 unsigned int _audiodata_buf_size; 274 __le32 *_audiodata_buf_virt_addr; 275 dma_addr_t _audiodata_buf_phys_addr; 276 char *_audiofilename; 277 u32 audio_upstream_riscbuf_size; 278 u32 audio_upstream_databuf_size; 279 int _audioframe_index; 280 struct work_struct _audio_work_entry; 281 char *input_audiofilename; 282 283 /* V4l */ 284 spinlock_t slock; 285 286 /* Video Upstream */ 287 struct cx25821_video_out_data vid_out_data[2]; 288 }; 289 290 static inline struct cx25821_dev *get_cx25821(struct v4l2_device *v4l2_dev) 291 { 292 return container_of(v4l2_dev, struct cx25821_dev, v4l2_dev); 293 } 294 295 extern struct cx25821_board cx25821_boards[]; 296 297 #define SRAM_CH00 0 /* Video A */ 298 #define SRAM_CH01 1 /* Video B */ 299 #define SRAM_CH02 2 /* Video C */ 300 #define SRAM_CH03 3 /* Video D */ 301 #define SRAM_CH04 4 /* Video E */ 302 #define SRAM_CH05 5 /* Video F */ 303 #define SRAM_CH06 6 /* Video G */ 304 #define SRAM_CH07 7 /* Video H */ 305 306 #define SRAM_CH08 8 /* Audio A */ 307 #define SRAM_CH09 9 /* Video Upstream I */ 308 #define SRAM_CH10 10 /* Video Upstream J */ 309 #define SRAM_CH11 11 /* Audio Upstream AUD_CHANNEL_B */ 310 311 #define VID_UPSTREAM_SRAM_CHANNEL_I SRAM_CH09 312 #define VID_UPSTREAM_SRAM_CHANNEL_J SRAM_CH10 313 #define AUDIO_UPSTREAM_SRAM_CHANNEL_B SRAM_CH11 314 315 struct sram_channel { 316 char *name; 317 u32 i; 318 u32 cmds_start; 319 u32 ctrl_start; 320 u32 cdt; 321 u32 fifo_start; 322 u32 fifo_size; 323 u32 ptr1_reg; 324 u32 ptr2_reg; 325 u32 cnt1_reg; 326 u32 cnt2_reg; 327 u32 int_msk; 328 u32 int_stat; 329 u32 int_mstat; 330 u32 dma_ctl; 331 u32 gpcnt_ctl; 332 u32 gpcnt; 333 u32 aud_length; 334 u32 aud_cfg; 335 u32 fld_aud_fifo_en; 336 u32 fld_aud_risc_en; 337 338 /* For Upstream Video */ 339 u32 vid_fmt_ctl; 340 u32 vid_active_ctl1; 341 u32 vid_active_ctl2; 342 u32 vid_cdt_size; 343 344 u32 vip_ctl; 345 u32 pix_frmt; 346 u32 jumponly; 347 u32 irq_bit; 348 }; 349 350 extern const struct sram_channel cx25821_sram_channels[]; 351 352 #define cx_read(reg) readl(dev->lmmio + ((reg)>>2)) 353 #define cx_write(reg, value) writel((value), dev->lmmio + ((reg)>>2)) 354 355 #define cx_andor(reg, mask, value) \ 356 writel((readl(dev->lmmio+((reg)>>2)) & ~(mask)) |\ 357 ((value) & (mask)), dev->lmmio+((reg)>>2)) 358 359 #define cx_set(reg, bit) cx_andor((reg), (bit), (bit)) 360 #define cx_clear(reg, bit) cx_andor((reg), (bit), 0) 361 362 #define Set_GPIO_Bit(Bit) (1 << Bit) 363 #define Clear_GPIO_Bit(Bit) (~(1 << Bit)) 364 365 #define CX25821_ERR(fmt, args...) \ 366 pr_err("(%d): " fmt, dev->board, ##args) 367 #define CX25821_WARN(fmt, args...) \ 368 pr_warn("(%d): " fmt, dev->board, ##args) 369 #define CX25821_INFO(fmt, args...) \ 370 pr_info("(%d): " fmt, dev->board, ##args) 371 372 extern int cx25821_i2c_register(struct cx25821_i2c *bus); 373 extern int cx25821_i2c_read(struct cx25821_i2c *bus, u16 reg_addr, int *value); 374 extern int cx25821_i2c_write(struct cx25821_i2c *bus, u16 reg_addr, int value); 375 extern int cx25821_i2c_unregister(struct cx25821_i2c *bus); 376 extern void cx25821_gpio_init(struct cx25821_dev *dev); 377 extern void cx25821_set_gpiopin_direction(struct cx25821_dev *dev, 378 int pin_number, int pin_logic_value); 379 380 extern int medusa_video_init(struct cx25821_dev *dev); 381 extern int medusa_set_videostandard(struct cx25821_dev *dev); 382 extern void medusa_set_resolution(struct cx25821_dev *dev, int width, 383 int decoder_select); 384 extern int medusa_set_brightness(struct cx25821_dev *dev, int brightness, 385 int decoder); 386 extern int medusa_set_contrast(struct cx25821_dev *dev, int contrast, 387 int decoder); 388 extern int medusa_set_hue(struct cx25821_dev *dev, int hue, int decoder); 389 extern int medusa_set_saturation(struct cx25821_dev *dev, int saturation, 390 int decoder); 391 392 extern int cx25821_sram_channel_setup(struct cx25821_dev *dev, 393 const struct sram_channel *ch, unsigned int bpl, 394 u32 risc); 395 396 extern int cx25821_riscmem_alloc(struct pci_dev *pci, 397 struct cx25821_riscmem *risc, 398 unsigned int size); 399 extern int cx25821_risc_buffer(struct pci_dev *pci, struct cx25821_riscmem *risc, 400 struct scatterlist *sglist, 401 unsigned int top_offset, 402 unsigned int bottom_offset, 403 unsigned int bpl, 404 unsigned int padding, unsigned int lines); 405 extern int cx25821_risc_databuffer_audio(struct pci_dev *pci, 406 struct cx25821_riscmem *risc, 407 struct scatterlist *sglist, 408 unsigned int bpl, 409 unsigned int lines, unsigned int lpi); 410 extern void cx25821_free_buffer(struct cx25821_dev *dev, 411 struct cx25821_buffer *buf); 412 extern void cx25821_sram_channel_dump(struct cx25821_dev *dev, 413 const struct sram_channel *ch); 414 extern void cx25821_sram_channel_dump_audio(struct cx25821_dev *dev, 415 const struct sram_channel *ch); 416 417 extern struct cx25821_dev *cx25821_dev_get(struct pci_dev *pci); 418 extern void cx25821_print_irqbits(char *name, char *tag, char **strings, 419 int len, u32 bits, u32 mask); 420 extern void cx25821_dev_unregister(struct cx25821_dev *dev); 421 extern int cx25821_sram_channel_setup_audio(struct cx25821_dev *dev, 422 const struct sram_channel *ch, 423 unsigned int bpl, u32 risc); 424 425 extern void cx25821_set_pixel_format(struct cx25821_dev *dev, int channel, 426 u32 format); 427 428 #endif 429