drivers/media/pci/cx25821/cx25821.h

   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