drivers/media/pci/cx25821/cx25821.h

   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/interrupt.h>
  30 #include <linux/delay.h>
  31 #include <linux/sched.h>
  32 #include <linux/kdev_t.h>
  33
  34 #include <media/v4l2-common.h>
  35 #include <media/v4l2-device.h>
  36 #include <media/v4l2-ctrls.h>
  37 #include <media/videobuf2-v4l2.h>
  38 #include <media/videobuf2-dma-sg.h>
  39
  40 #include "cx25821-reg.h"
  41 #include "cx25821-medusa-reg.h"
  42 #include "cx25821-sram.h"
  43 #include "cx25821-audio.h"
  44
  45 #include <linux/version.h>
  46 #include <linux/mutex.h>
  47
  48 #define CX25821_VERSION_CODE KERNEL_VERSION(0, 0, 106)
  49
  50 #define UNSET (-1U)
  51 #define NO_SYNC_LINE (-1U)
  52
  53 #define CX25821_MAXBOARDS 2
  54
  55 #define LINE_SIZE_D1    1440
  56
  57 /* Number of decoders and encoders */
  58 #define MAX_DECODERS            8
  59 #define MAX_ENCODERS            2
  60 #define QUAD_DECODERS           4
  61 #define MAX_CAMERAS             16
  62
  63 /* Max number of inputs by card */
  64 #define MAX_CX25821_INPUT     8
  65 #define RESOURCE_VIDEO0       1
  66 #define RESOURCE_VIDEO1       2
  67 #define RESOURCE_VIDEO2       4
  68 #define RESOURCE_VIDEO3       8
  69 #define RESOURCE_VIDEO4       16
  70 #define RESOURCE_VIDEO5       32
  71 #define RESOURCE_VIDEO6       64
  72 #define RESOURCE_VIDEO7       128
  73 #define RESOURCE_VIDEO8       256
  74 #define RESOURCE_VIDEO9       512
  75 #define RESOURCE_VIDEO10      1024
  76 #define RESOURCE_VIDEO11      2048
  77
  78 #define BUFFER_TIMEOUT     (HZ) /* 0.5 seconds */
  79
  80 #define UNKNOWN_BOARD        0
  81 #define CX25821_BOARD        1
  82
  83 /* Currently supported by the driver */
  84 #define CX25821_NORMS (\
  85         V4L2_STD_NTSC_M |  V4L2_STD_NTSC_M_JP | V4L2_STD_NTSC_M_KR | \
  86         V4L2_STD_PAL_BG |  V4L2_STD_PAL_DK    |  V4L2_STD_PAL_I    | \
  87         V4L2_STD_PAL_M  |  V4L2_STD_PAL_N     |  V4L2_STD_PAL_H    | \
  88         V4L2_STD_PAL_Nc)
  89
  90 #define CX25821_BOARD_CONEXANT_ATHENA10 1
  91 #define MAX_VID_CHANNEL_NUM     12
  92
  93 /*
  94  * Maximum capture-only channels. This can go away once video/audio output
  95  * is fully supported in this driver.
  96  */
  97 #define MAX_VID_CAP_CHANNEL_NUM     10
  98
  99 #define VID_CHANNEL_NUM 8
 100
 101 struct cx25821_fmt {
 102         char *name;
 103         u32 fourcc;             /* v4l2 format id */
 104         int depth;
 105         int flags;
 106         u32 cxformat;
 107 };
 108
 109 struct cx25821_tvnorm {
 110         char *name;
 111         v4l2_std_id id;
 112         u32 cxiformat;
 113         u32 cxoformat;
 114 };
 115
 116 enum cx25821_src_sel_type {
 117         CX25821_SRC_SEL_EXT_656_VIDEO = 0,
 118         CX25821_SRC_SEL_PARALLEL_MPEG_VIDEO
 119 };
 120
 121 struct cx25821_riscmem {
 122         unsigned int   size;
 123         __le32         *cpu;
 124         __le32         *jmp;
 125         dma_addr_t     dma;
 126 };
 127
 128 /* buffer for one video frame */
 129 struct cx25821_buffer {
 130         /* common v4l buffer stuff -- must be first */
 131         struct vb2_v4l2_buffer vb;
 132         struct list_head queue;
 133
 134         /* cx25821 specific */
 135         unsigned int bpl;
 136         struct cx25821_riscmem risc;
 137         const struct cx25821_fmt *fmt;
 138 };
 139
 140 enum port {
 141         CX25821_UNDEFINED = 0,
 142         CX25821_RAW,
 143         CX25821_264
 144 };
 145
 146 struct cx25821_board {
 147         const char *name;
 148         enum port porta;
 149         enum port portb;
 150         enum port portc;
 151
 152         u32 clk_freq;
 153 };
 154
 155 struct cx25821_i2c {
 156         struct cx25821_dev *dev;
 157
 158         int nr;
 159
 160         /* i2c i/o */
 161         struct i2c_adapter i2c_adap;
 162         struct i2c_client i2c_client;
 163         u32 i2c_rc;
 164
 165         /* cx25821 registers used for raw addess */
 166         u32 i2c_period;
 167         u32 reg_ctrl;
 168         u32 reg_stat;
 169         u32 reg_addr;
 170         u32 reg_rdata;
 171         u32 reg_wdata;
 172 };
 173
 174 struct cx25821_dmaqueue {
 175         struct list_head active;
 176         u32 count;
 177 };
 178
 179 struct cx25821_dev;
 180
 181 struct cx25821_channel;
 182
 183 struct cx25821_video_out_data {
 184         struct cx25821_channel *chan;
 185         int _line_size;
 186         int _prog_cnt;
 187         int _pixel_format;
 188         int _is_first_frame;
 189         int _is_running;
 190         int _file_status;
 191         int _lines_count;
 192         int _frame_count;
 193         unsigned int _risc_size;
 194
 195         __le32 *_dma_virt_start_addr;
 196         __le32 *_dma_virt_addr;
 197         dma_addr_t _dma_phys_addr;
 198         dma_addr_t _dma_phys_start_addr;
 199
 200         unsigned int _data_buf_size;
 201         __le32 *_data_buf_virt_addr;
 202         dma_addr_t _data_buf_phys_addr;
 203
 204         u32 upstream_riscbuf_size;
 205         u32 upstream_databuf_size;
 206         int is_60hz;
 207         int _frame_index;
 208         int cur_frame_index;
 209         int curpos;
 210         wait_queue_head_t waitq;
 211 };
 212
 213 struct cx25821_channel {
 214         unsigned id;
 215         struct cx25821_dev *dev;
 216
 217         struct v4l2_ctrl_handler hdl;
 218
 219         struct video_device vdev;
 220         struct cx25821_dmaqueue dma_vidq;
 221         struct vb2_queue vidq;
 222
 223         const struct sram_channel *sram_channels;
 224
 225         const struct cx25821_fmt *fmt;
 226         unsigned field;
 227         unsigned int width, height;
 228         int pixel_formats;
 229         int use_cif_resolution;
 230         int cif_width;
 231
 232         /* video output data for the video output channel */
 233         struct cx25821_video_out_data *out;
 234 };
 235
 236 struct snd_card;
 237
 238 struct cx25821_dev {
 239         struct v4l2_device v4l2_dev;
 240
 241         /* pci stuff */
 242         struct pci_dev *pci;
 243         unsigned char pci_rev, pci_lat;
 244         int pci_bus, pci_slot;
 245         u32 base_io_addr;
 246         u32 __iomem *lmmio;
 247         u8 __iomem *bmmio;
 248         int pci_irqmask;
 249         int hwrevision;
 250         /* used by cx25821-alsa */
 251         struct snd_card *card;
 252
 253         u32 clk_freq;
 254
 255         /* I2C adapters: Master 1 & 2 (External) & Master 3 (Internal only) */
 256         struct cx25821_i2c i2c_bus[3];
 257
 258         int nr;
 259         struct mutex lock;
 260
 261         struct cx25821_channel channels[MAX_VID_CHANNEL_NUM];
 262
 263         /* board details */
 264         unsigned int board;
 265         char name[32];
 266
 267         /* Analog video */
 268         unsigned int input;
 269         v4l2_std_id tvnorm;
 270         unsigned short _max_num_decoders;
 271
 272         /* Analog Audio Upstream */
 273         int _audio_is_running;
 274         int _audiopixel_format;
 275         int _is_first_audio_frame;
 276         int _audiofile_status;
 277         int _audio_lines_count;
 278         int _audioframe_count;
 279         int _audio_upstream_channel;
 280         int _last_index_irq;    /* The last interrupt index processed. */
 281
 282         __le32 *_risc_audio_jmp_addr;
 283         __le32 *_risc_virt_start_addr;
 284         __le32 *_risc_virt_addr;
 285         dma_addr_t _risc_phys_addr;
 286         dma_addr_t _risc_phys_start_addr;
 287
 288         unsigned int _audiorisc_size;
 289         unsigned int _audiodata_buf_size;
 290         __le32 *_audiodata_buf_virt_addr;
 291         dma_addr_t _audiodata_buf_phys_addr;
 292         char *_audiofilename;
 293         u32 audio_upstream_riscbuf_size;
 294         u32 audio_upstream_databuf_size;
 295         int _audioframe_index;
 296         struct work_struct _audio_work_entry;
 297         char *input_audiofilename;
 298
 299         /* V4l */
 300         spinlock_t slock;
 301
 302         /* Video Upstream */
 303         struct cx25821_video_out_data vid_out_data[2];
 304 };
 305
 306 static inline struct cx25821_dev *get_cx25821(struct v4l2_device *v4l2_dev)
 307 {
 308         return container_of(v4l2_dev, struct cx25821_dev, v4l2_dev);
 309 }
 310
 311 extern struct cx25821_board cx25821_boards[];
 312
 313 #define SRAM_CH00  0            /* Video A */
 314 #define SRAM_CH01  1            /* Video B */
 315 #define SRAM_CH02  2            /* Video C */
 316 #define SRAM_CH03  3            /* Video D */
 317 #define SRAM_CH04  4            /* Video E */
 318 #define SRAM_CH05  5            /* Video F */
 319 #define SRAM_CH06  6            /* Video G */
 320 #define SRAM_CH07  7            /* Video H */
 321
 322 #define SRAM_CH08  8            /* Audio A */
 323 #define SRAM_CH09  9            /* Video Upstream I */
 324 #define SRAM_CH10  10           /* Video Upstream J */
 325 #define SRAM_CH11  11           /* Audio Upstream AUD_CHANNEL_B */
 326
 327 #define VID_UPSTREAM_SRAM_CHANNEL_I     SRAM_CH09
 328 #define VID_UPSTREAM_SRAM_CHANNEL_J     SRAM_CH10
 329 #define AUDIO_UPSTREAM_SRAM_CHANNEL_B   SRAM_CH11
 330
 331 struct sram_channel {
 332         char *name;
 333         u32 i;
 334         u32 cmds_start;
 335         u32 ctrl_start;
 336         u32 cdt;
 337         u32 fifo_start;
 338         u32 fifo_size;
 339         u32 ptr1_reg;
 340         u32 ptr2_reg;
 341         u32 cnt1_reg;
 342         u32 cnt2_reg;
 343         u32 int_msk;
 344         u32 int_stat;
 345         u32 int_mstat;
 346         u32 dma_ctl;
 347         u32 gpcnt_ctl;
 348         u32 gpcnt;
 349         u32 aud_length;
 350         u32 aud_cfg;
 351         u32 fld_aud_fifo_en;
 352         u32 fld_aud_risc_en;
 353
 354         /* For Upstream Video */
 355         u32 vid_fmt_ctl;
 356         u32 vid_active_ctl1;
 357         u32 vid_active_ctl2;
 358         u32 vid_cdt_size;
 359
 360         u32 vip_ctl;
 361         u32 pix_frmt;
 362         u32 jumponly;
 363         u32 irq_bit;
 364 };
 365
 366 extern const struct sram_channel cx25821_sram_channels[];
 367
 368 #define cx_read(reg)             readl(dev->lmmio + ((reg)>>2))
 369 #define cx_write(reg, value)     writel((value), dev->lmmio + ((reg)>>2))
 370
 371 #define cx_andor(reg, mask, value) \
 372         writel((readl(dev->lmmio+((reg)>>2)) & ~(mask)) |\
 373         ((value) & (mask)), dev->lmmio+((reg)>>2))
 374
 375 #define cx_set(reg, bit)          cx_andor((reg), (bit), (bit))
 376 #define cx_clear(reg, bit)        cx_andor((reg), (bit), 0)
 377
 378 #define Set_GPIO_Bit(Bit)                       (1 << Bit)
 379 #define Clear_GPIO_Bit(Bit)                     (~(1 << Bit))
 380
 381 #define CX25821_ERR(fmt, args...)                       \
 382         pr_err("(%d): " fmt, dev->board, ##args)
 383 #define CX25821_WARN(fmt, args...)                      \
 384         pr_warn("(%d): " fmt, dev->board, ##args)
 385 #define CX25821_INFO(fmt, args...)                      \
 386         pr_info("(%d): " fmt, dev->board, ##args)
 387
 388 extern int cx25821_i2c_register(struct cx25821_i2c *bus);
 389 extern int cx25821_i2c_read(struct cx25821_i2c *bus, u16 reg_addr, int *value);
 390 extern int cx25821_i2c_write(struct cx25821_i2c *bus, u16 reg_addr, int value);
 391 extern int cx25821_i2c_unregister(struct cx25821_i2c *bus);
 392 extern void cx25821_gpio_init(struct cx25821_dev *dev);
 393 extern void cx25821_set_gpiopin_direction(struct cx25821_dev *dev,
 394                                           int pin_number, int pin_logic_value);
 395
 396 extern int medusa_video_init(struct cx25821_dev *dev);
 397 extern int medusa_set_videostandard(struct cx25821_dev *dev);
 398 extern void medusa_set_resolution(struct cx25821_dev *dev, int width,
 399                                   int decoder_select);
 400 extern int medusa_set_brightness(struct cx25821_dev *dev, int brightness,
 401                                  int decoder);
 402 extern int medusa_set_contrast(struct cx25821_dev *dev, int contrast,
 403                                int decoder);
 404 extern int medusa_set_hue(struct cx25821_dev *dev, int hue, int decoder);
 405 extern int medusa_set_saturation(struct cx25821_dev *dev, int saturation,
 406                                  int decoder);
 407
 408 extern int cx25821_sram_channel_setup(struct cx25821_dev *dev,
 409                                       const struct sram_channel *ch, unsigned int bpl,
 410                                       u32 risc);
 411
 412 extern int cx25821_riscmem_alloc(struct pci_dev *pci,
 413                                  struct cx25821_riscmem *risc,
 414                                  unsigned int size);
 415 extern int cx25821_risc_buffer(struct pci_dev *pci, struct cx25821_riscmem *risc,
 416                                struct scatterlist *sglist,
 417                                unsigned int top_offset,
 418                                unsigned int bottom_offset,
 419                                unsigned int bpl,
 420                                unsigned int padding, unsigned int lines);
 421 extern int cx25821_risc_databuffer_audio(struct pci_dev *pci,
 422                                          struct cx25821_riscmem *risc,
 423                                          struct scatterlist *sglist,
 424                                          unsigned int bpl,
 425                                          unsigned int lines, unsigned int lpi);
 426 extern void cx25821_free_buffer(struct cx25821_dev *dev,
 427                                 struct cx25821_buffer *buf);
 428 extern void cx25821_sram_channel_dump(struct cx25821_dev *dev,
 429                                       const struct sram_channel *ch);
 430 extern void cx25821_sram_channel_dump_audio(struct cx25821_dev *dev,
 431                                             const struct sram_channel *ch);
 432
 433 extern struct cx25821_dev *cx25821_dev_get(struct pci_dev *pci);
 434 extern void cx25821_print_irqbits(char *name, char *tag, char **strings,
 435                                   int len, u32 bits, u32 mask);
 436 extern void cx25821_dev_unregister(struct cx25821_dev *dev);
 437 extern int cx25821_sram_channel_setup_audio(struct cx25821_dev *dev,
 438                                             const struct sram_channel *ch,
 439                                             unsigned int bpl, u32 risc);
 440
 441 extern int cx25821_vidupstream_init(struct cx25821_channel *chan, int pixel_format);
 442 extern int cx25821_audio_upstream_init(struct cx25821_dev *dev,
 443                                        int channel_select);
 444 extern int cx25821_write_frame(struct cx25821_channel *chan,
 445                 const char __user *data, size_t count);
 446 extern void cx25821_free_mem_upstream(struct cx25821_channel *chan);
 447 extern void cx25821_free_mem_upstream_audio(struct cx25821_dev *dev);
 448 extern void cx25821_stop_upstream_video(struct cx25821_channel *chan);
 449 extern void cx25821_stop_upstream_audio(struct cx25821_dev *dev);
 450 extern int cx25821_sram_channel_setup_upstream(struct cx25821_dev *dev,
 451                                                const struct sram_channel *ch,
 452                                                unsigned int bpl, u32 risc);
 453 extern void cx25821_set_pixel_format(struct cx25821_dev *dev, int channel,
 454                                      u32 format);
 455
 456 #endif