git.oblomov.eu Git - linux-2.6/blob - drivers/media/video/cx23885/cx23885.h

   1 /*
   2  *  Driver for the Conexant CX23885 PCIe bridge
   3  *
   4  *  Copyright (c) 2006 Steven Toth <stoth@hauppauge.com>
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, write to the Free Software
  19  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20  */
  21
  22 #include <linux/pci.h>
  23 #include <linux/i2c.h>
  24 #include <linux/i2c-algo-bit.h>
  25 #include <linux/kdev_t.h>
  26
  27 #include <media/v4l2-common.h>
  28 #include <media/tuner.h>
  29 #include <media/tveeprom.h>
  30 #include <media/video-buf.h>
  31 #if defined(CONFIG_VIDEO_BUF_DVB) || defined(CONFIG_VIDEO_BUF_DVB_MODULE)
  32 #include <media/video-buf-dvb.h>
  33 #endif
  34
  35 #include "btcx-risc.h"
  36 #include "cx23885-reg.h"
  37
  38 #include <linux/version.h>
  39 #include <linux/mutex.h>
  40
  41 #define CX23885_VERSION_CODE KERNEL_VERSION(0,0,1)
  42
  43 #define UNSET (-1U)
  44
  45 #define CX23885_MAXBOARDS 8
  46
  47 /* Max number of inputs by card */
  48 #define MAX_CX23885_INPUT 8
  49
  50 #define BUFFER_TIMEOUT     (HZ)  /* 0.5 seconds */
  51
  52 #define CX23885_BOARD_NOAUTO               UNSET
  53 #define CX23885_BOARD_UNKNOWN                  0
  54 #define CX23885_BOARD_HAUPPAUGE_HVR1800lp      1
  55 #define CX23885_BOARD_HAUPPAUGE_HVR1800        2
  56 #define CX23885_BOARD_HAUPPAUGE_HVR1250        3
  57
  58 enum cx23885_itype {
  59         CX23885_VMUX_COMPOSITE1 = 1,
  60         CX23885_VMUX_COMPOSITE2,
  61         CX23885_VMUX_COMPOSITE3,
  62         CX23885_VMUX_COMPOSITE4,
  63         CX23885_VMUX_SVIDEO,
  64         CX23885_VMUX_TELEVISION,
  65         CX23885_VMUX_CABLE,
  66         CX23885_VMUX_DVB,
  67         CX23885_VMUX_DEBUG,
  68         CX23885_RADIO,
  69 };
  70
  71 /* buffer for one video frame */
  72 struct cx23885_buffer {
  73         /* common v4l buffer stuff -- must be first */
  74         struct videobuf_buffer vb;
  75
  76         /* cx23885 specific */
  77         unsigned int           bpl;
  78         struct btcx_riscmem    risc;
  79         struct cx23885_fmt     *fmt;
  80         u32                    count;
  81 };
  82
  83 struct cx23885_input {
  84         enum cx23885_itype type;
  85         unsigned int    vmux;
  86         u32             gpio0, gpio1, gpio2, gpio3;
  87 };
  88
  89 typedef enum {
  90         CX23885_MPEG_UNDEFINED = 0,
  91         CX23885_MPEG_DVB
  92 } port_t;
  93
  94 struct cx23885_board {
  95         char                    *name;
  96         port_t                  portb, portc;
  97         struct cx23885_input    input[MAX_CX23885_INPUT];
  98 };
  99
 100 struct cx23885_subid {
 101         u16     subvendor;
 102         u16     subdevice;
 103         u32     card;
 104 };
 105
 106 struct cx23885_i2c {
 107         struct cx23885_dev *dev;
 108
 109         int                        nr;
 110
 111         /* i2c i/o */
 112         struct i2c_adapter         i2c_adap;
 113         struct i2c_algo_bit_data   i2c_algo;
 114         struct i2c_client          i2c_client;
 115         u32                        i2c_rc;
 116
 117         /* 885 registers used for raw addess */
 118         u32                        i2c_period;
 119         u32                        reg_ctrl;
 120         u32                        reg_stat;
 121         u32                        reg_addr;
 122         u32                        reg_rdata;
 123         u32                        reg_wdata;
 124 };
 125
 126 struct cx23885_dmaqueue {
 127         struct list_head       active;
 128         struct list_head       queued;
 129         struct timer_list      timeout;
 130         struct btcx_riscmem    stopper;
 131         u32                    count;
 132 };
 133
 134 struct cx23885_tsport {
 135         struct cx23885_dev *dev;
 136
 137         int                        nr;
 138         int                        sram_chno;
 139
 140         struct videobuf_dvb        dvb;
 141
 142         /* dma queues */
 143         struct cx23885_dmaqueue    mpegq;
 144         u32                        ts_packet_size;
 145         u32                        ts_packet_count;
 146
 147         int                        width;
 148         int                        height;
 149
 150         spinlock_t                 slock;
 151
 152         /* registers */
 153         u32                        reg_gpcnt;
 154         u32                        reg_gpcnt_ctl;
 155         u32                        reg_dma_ctl;
 156         u32                        reg_lngth;
 157         u32                        reg_hw_sop_ctrl;
 158         u32                        reg_gen_ctrl;
 159         u32                        reg_bd_pkt_status;
 160         u32                        reg_sop_status;
 161         u32                        reg_fifo_ovfl_stat;
 162         u32                        reg_vld_misc;
 163         u32                        reg_ts_clk_en;
 164         u32                        reg_ts_int_msk;
 165
 166         /* Default register vals */
 167         int                        pci_irqmask;
 168         u32                        dma_ctl_val;
 169         u32                        ts_int_msk_val;
 170         u32                        gen_ctrl_val;
 171         u32                        ts_clk_en_val;
 172 };
 173
 174 struct cx23885_dev {
 175         struct list_head           devlist;
 176         atomic_t                   refcount;
 177
 178         /* pci stuff */
 179         struct pci_dev             *pci;
 180         unsigned char              pci_rev, pci_lat;
 181         int                        pci_bus, pci_slot;
 182         u32                        __iomem *lmmio;
 183         u8                         __iomem *bmmio;
 184         int                        pci_irqmask;
 185
 186         /* I2C adapters: Master 1 & 2 (External) & Master 3 (Internal only) */
 187         struct cx23885_i2c         i2c_bus[3];
 188
 189         int                        nr;
 190         struct mutex               lock;
 191
 192         /* board details */
 193         unsigned int               board;
 194         char                       name[32];
 195
 196         struct cx23885_tsport      ts2;
 197
 198         /* sram configuration */
 199         struct sram_channel        *sram_channels;
 200
 201         enum {
 202                 CX23885_BRIDGE_UNDEFINED = 0,
 203                 CX23885_BRIDGE_885 = 885,
 204                 CX23885_BRIDGE_887 = 887,
 205         } bridge;
 206 };
 207
 208 #define SRAM_CH01  0 /* Video A */
 209 #define SRAM_CH02  1 /* VBI A */
 210 #define SRAM_CH03  2 /* Video B */
 211 #define SRAM_CH04  3 /* Transport via B */
 212 #define SRAM_CH05  4 /* VBI B */
 213 #define SRAM_CH06  5 /* Video C */
 214 #define SRAM_CH07  6 /* Transport via C */
 215 #define SRAM_CH08  7 /* Audio Internal A */
 216 #define SRAM_CH09  8 /* Audio Internal B */
 217 #define SRAM_CH10  9 /* Audio External */
 218 #define SRAM_CH11 10 /* COMB_3D_N */
 219 #define SRAM_CH12 11 /* Comb 3D N1 */
 220 #define SRAM_CH13 12 /* Comb 3D N2 */
 221 #define SRAM_CH14 13 /* MOE Vid */
 222 #define SRAM_CH15 14 /* MOE RSLT */
 223
 224 struct sram_channel {
 225         char *name;
 226         u32  cmds_start;
 227         u32  ctrl_start;
 228         u32  cdt;
 229         u32  fifo_start;;
 230         u32  fifo_size;
 231         u32  ptr1_reg;
 232         u32  ptr2_reg;
 233         u32  cnt1_reg;
 234         u32  cnt2_reg;
 235         u32  jumponly;
 236 };
 237
 238 /* ----------------------------------------------------------- */
 239
 240 #define cx_read(reg)             readl(dev->lmmio + ((reg)>>2))
 241 #define cx_write(reg,value)      writel((value), dev->lmmio + ((reg)>>2))
 242
 243 #define cx_andor(reg,mask,value) \
 244   writel((readl(dev->lmmio+((reg)>>2)) & ~(mask)) |\
 245   ((value) & (mask)), dev->lmmio+((reg)>>2))
 246
 247 #define cx_set(reg,bit)          cx_andor((reg),(bit),(bit))
 248 #define cx_clear(reg,bit)        cx_andor((reg),(bit),0)
 249
 250 extern int cx23885_sram_channel_setup(struct cx23885_dev *dev,
 251         struct sram_channel *ch,
 252         unsigned int bpl, u32 risc);
 253
 254 /* ----------------------------------------------------------- */
 255 /* cx23885-cards.c                                                */
 256
 257 extern struct cx23885_board cx23885_boards[];
 258 extern const unsigned int cx23885_bcount;
 259
 260 extern struct cx23885_subid cx23885_subids[];
 261 extern const unsigned int cx23885_idcount;
 262
 263 extern void cx23885_card_list(struct cx23885_dev *dev);
 264 extern void cx23885_card_setup(struct cx23885_dev *dev);
 265 extern void cx23885_card_setup_pre_i2c(struct cx23885_dev *dev);
 266
 267 extern int cx23885_dvb_register(struct cx23885_tsport *port);
 268 extern int cx23885_dvb_unregister(struct cx23885_tsport *port);
 269
 270 extern int cx23885_buf_prepare(struct videobuf_queue *q,
 271                                struct cx23885_tsport *port,
 272                                struct cx23885_buffer *buf,
 273                                enum v4l2_field field);
 274
 275 extern void cx23885_buf_queue(struct cx23885_tsport *port,
 276                               struct cx23885_buffer *buf);
 277 extern void cx23885_free_buffer(struct videobuf_queue *q,
 278                                 struct cx23885_buffer *buf);
 279
 280 /* ----------------------------------------------------------- */
 281 /* cx23885-i2c.c                                                */
 282 extern int cx23885_i2c_register(struct cx23885_i2c *bus);
 283 extern int cx23885_i2c_unregister(struct cx23885_i2c *bus);
 284 extern void cx23885_call_i2c_clients(struct cx23885_i2c *bus, unsigned int cmd,
 285                                      void *arg);
 286
 287 /*
 288  * Local variables:
 289  * c-basic-offset: 8
 290  * End:
 291  * kate: eol "unix"; indent-width 3; remove-trailing-space on; replace-trailing-space-save on; tab-width 8; replace-tabs off; space-indent off; mixed-indent off
 292  */