drivers/media/i2c/cx25840/cx25840-core.h

   1 /* cx25840 internal API header
   2  *
   3  * Copyright (C) 2003-2004 Chris Kennedy
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License
   7  * as published by the Free Software Foundation; either version 2
   8  * of the License, or (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  */
  15
  16 #ifndef _CX25840_CORE_H_
  17 #define _CX25840_CORE_H_
  18
  19
  20 #include <linux/videodev2.h>
  21 #include <media/v4l2-device.h>
  22 #include <media/v4l2-ctrls.h>
  23 #include <linux/i2c.h>
  24
  25 struct cx25840_ir_state;
  26
  27 enum cx25840_model {
  28         CX23885_AV,
  29         CX23887_AV,
  30         CX23888_AV,
  31         CX2310X_AV,
  32         CX25840,
  33         CX25841,
  34         CX25842,
  35         CX25843,
  36         CX25836,
  37         CX25837,
  38 };
  39
  40 enum cx25840_media_pads {
  41         CX25840_PAD_INPUT,
  42         CX25840_PAD_VID_OUT,
  43
  44         CX25840_NUM_PADS
  45 };
  46
  47 /**
  48  * struct cx25840_state - a device instance private data
  49  * @c:                  i2c_client struct representing this device
  50  * @sd:         our V4L2 sub-device
  51  * @hdl:                our V4L2 control handler
  52  * @volume:             audio volume V4L2 control (non-cx2583x devices only)
  53  * @mute:               audio mute V4L2 control (non-cx2583x devices only)
  54  * @pvr150_workaround:  whether we enable workaround for Hauppauge PVR150
  55  *                      hardware bug (audio dropping out)
  56  * @radio:              set if we are currently in the radio mode, otherwise
  57  *                      the current mode is non-radio (that is, video)
  58  * @std:                currently set video standard
  59  * @vid_input:          currently set video input
  60  * @aud_input:          currently set audio input
  61  * @audclk_freq:        currently set audio sample rate
  62  * @audmode:            currently set audio mode (when in non-radio mode)
  63  * @vbi_line_offset:    vbi line number offset
  64  * @id:         exact device model
  65  * @rev:                raw device id read from the chip
  66  * @is_initialized:     whether we have already loaded firmware into the chip
  67  *                      and initialized it
  68  * @vbi_regs_offset:    offset of vbi regs
  69  * @fw_wait:            wait queue to wake an initialization function up when
  70  *                      firmware loading (on a separate workqueue) finishes
  71  * @fw_work:            a work that actually loads the firmware on a separate
  72  *                      workqueue
  73  * @ir_state:           a pointer to chip IR controller private data
  74  * @pads:               array of supported chip pads (currently only a stub)
  75  */
  76 struct cx25840_state {
  77         struct i2c_client *c;
  78         struct v4l2_subdev sd;
  79         struct v4l2_ctrl_handler hdl;
  80         struct {
  81                 /* volume cluster */
  82                 struct v4l2_ctrl *volume;
  83                 struct v4l2_ctrl *mute;
  84         };
  85         int pvr150_workaround;
  86         int radio;
  87         v4l2_std_id std;
  88         enum cx25840_video_input vid_input;
  89         enum cx25840_audio_input aud_input;
  90         u32 audclk_freq;
  91         int audmode;
  92         int vbi_line_offset;
  93         enum cx25840_model id;
  94         u32 rev;
  95         int is_initialized;
  96         unsigned vbi_regs_offset;
  97         wait_queue_head_t fw_wait;
  98         struct work_struct fw_work;
  99         struct cx25840_ir_state *ir_state;
 100 #if defined(CONFIG_MEDIA_CONTROLLER)
 101         struct media_pad        pads[CX25840_NUM_PADS];
 102 #endif
 103 };
 104
 105 static inline struct cx25840_state *to_state(struct v4l2_subdev *sd)
 106 {
 107         return container_of(sd, struct cx25840_state, sd);
 108 }
 109
 110 static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
 111 {
 112         return &container_of(ctrl->handler, struct cx25840_state, hdl)->sd;
 113 }
 114
 115 static inline bool is_cx2583x(struct cx25840_state *state)
 116 {
 117         return state->id == CX25836 ||
 118                state->id == CX25837;
 119 }
 120
 121 static inline bool is_cx231xx(struct cx25840_state *state)
 122 {
 123         return state->id == CX2310X_AV;
 124 }
 125
 126 static inline bool is_cx2388x(struct cx25840_state *state)
 127 {
 128         return state->id == CX23885_AV ||
 129                state->id == CX23887_AV ||
 130                state->id == CX23888_AV;
 131 }
 132
 133 static inline bool is_cx23885(struct cx25840_state *state)
 134 {
 135         return state->id == CX23885_AV;
 136 }
 137
 138 static inline bool is_cx23887(struct cx25840_state *state)
 139 {
 140         return state->id == CX23887_AV;
 141 }
 142
 143 static inline bool is_cx23888(struct cx25840_state *state)
 144 {
 145         return state->id == CX23888_AV;
 146 }
 147
 148 /* ----------------------------------------------------------------------- */
 149 /* cx25850-core.c                                                          */
 150 int cx25840_write(struct i2c_client *client, u16 addr, u8 value);
 151 int cx25840_write4(struct i2c_client *client, u16 addr, u32 value);
 152 u8 cx25840_read(struct i2c_client *client, u16 addr);
 153 u32 cx25840_read4(struct i2c_client *client, u16 addr);
 154 int cx25840_and_or(struct i2c_client *client, u16 addr, unsigned mask, u8 value);
 155 int cx25840_and_or4(struct i2c_client *client, u16 addr, u32 and_mask,
 156                     u32 or_value);
 157 void cx25840_std_setup(struct i2c_client *client);
 158
 159 /* ----------------------------------------------------------------------- */
 160 /* cx25850-firmware.c                                                      */
 161 int cx25840_loadfw(struct i2c_client *client);
 162
 163 /* ----------------------------------------------------------------------- */
 164 /* cx25850-audio.c                                                         */
 165 void cx25840_audio_set_path(struct i2c_client *client);
 166 int cx25840_s_clock_freq(struct v4l2_subdev *sd, u32 freq);
 167
 168 extern const struct v4l2_ctrl_ops cx25840_audio_ctrl_ops;
 169
 170 /* ----------------------------------------------------------------------- */
 171 /* cx25850-vbi.c                                                           */
 172 int cx25840_s_raw_fmt(struct v4l2_subdev *sd, struct v4l2_vbi_format *fmt);
 173 int cx25840_s_sliced_fmt(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_format *fmt);
 174 int cx25840_g_sliced_fmt(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_format *fmt);
 175 int cx25840_decode_vbi_line(struct v4l2_subdev *sd, struct v4l2_decode_vbi_line *vbi);
 176
 177 /* ----------------------------------------------------------------------- */
 178 /* cx25850-ir.c                                                            */
 179 extern const struct v4l2_subdev_ir_ops cx25840_ir_ops;
 180 int cx25840_ir_log_status(struct v4l2_subdev *sd);
 181 int cx25840_ir_irq_handler(struct v4l2_subdev *sd, u32 status, bool *handled);
 182 int cx25840_ir_probe(struct v4l2_subdev *sd);
 183 int cx25840_ir_remove(struct v4l2_subdev *sd);
 184
 185 #endif