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

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /* cx25840 internal API header
   3  *
   4  * Copyright (C) 2003-2004 Chris Kennedy
   5  */
   6
   7 #ifndef _CX25840_CORE_H_
   8 #define _CX25840_CORE_H_
   9
  10 #include <linux/videodev2.h>
  11 #include <media/v4l2-device.h>
  12 #include <media/v4l2-ctrls.h>
  13 #include <linux/i2c.h>
  14
  15 struct cx25840_ir_state;
  16
  17 enum cx25840_model {
  18         CX23885_AV,
  19         CX23887_AV,
  20         CX23888_AV,
  21         CX2310X_AV,
  22         CX25840,
  23         CX25841,
  24         CX25842,
  25         CX25843,
  26         CX25836,
  27         CX25837,
  28 };
  29
  30 enum cx25840_media_pads {
  31         CX25840_PAD_INPUT,
  32         CX25840_PAD_VID_OUT,
  33
  34         CX25840_NUM_PADS
  35 };
  36
  37 /**
  38  * struct cx25840_state - a device instance private data
  39  * @c:                  i2c_client struct representing this device
  40  * @sd:         our V4L2 sub-device
  41  * @hdl:                our V4L2 control handler
  42  * @volume:             audio volume V4L2 control (non-cx2583x devices only)
  43  * @mute:               audio mute V4L2 control (non-cx2583x devices only)
  44  * @pvr150_workaround:  whether we enable workaround for Hauppauge PVR150
  45  *                      hardware bug (audio dropping out)
  46  * @generic_mode:       whether we disable ivtv-specific hacks
  47  *                      this mode gets turned on when the bridge driver calls
  48  *                      cx25840 subdevice init core op
  49  * @radio:              set if we are currently in the radio mode, otherwise
  50  *                      the current mode is non-radio (that is, video)
  51  * @std:                currently set video standard
  52  * @vid_input:          currently set video input
  53  * @vid_config: currently set video output configuration
  54  *                      only used in the generic mode
  55  * @aud_input:          currently set audio input
  56  * @audclk_freq:        currently set audio sample rate
  57  * @audmode:            currently set audio mode (when in non-radio mode)
  58  * @vbi_line_offset:    vbi line number offset
  59  * @id:         exact device model
  60  * @rev:                raw device id read from the chip
  61  * @is_initialized:     whether we have already loaded firmware into the chip
  62  *                      and initialized it
  63  * @vbi_regs_offset:    offset of vbi regs
  64  * @fw_wait:            wait queue to wake an initialization function up when
  65  *                      firmware loading (on a separate workqueue) finishes
  66  * @fw_work:            a work that actually loads the firmware on a separate
  67  *                      workqueue
  68  * @ir_state:           a pointer to chip IR controller private data
  69  * @pads:               array of supported chip pads (currently only a stub)
  70  */
  71 struct cx25840_state {
  72         struct i2c_client *c;
  73         struct v4l2_subdev sd;
  74         struct v4l2_ctrl_handler hdl;
  75         struct {
  76                 /* volume cluster */
  77                 struct v4l2_ctrl *volume;
  78                 struct v4l2_ctrl *mute;
  79         };
  80         int pvr150_workaround;
  81         bool generic_mode;
  82         int radio;
  83         v4l2_std_id std;
  84         enum cx25840_video_input vid_input;
  85         u32 vid_config;
  86         enum cx25840_audio_input aud_input;
  87         u32 audclk_freq;
  88         int audmode;
  89         int vbi_line_offset;
  90         enum cx25840_model id;
  91         u32 rev;
  92         int is_initialized;
  93         unsigned int vbi_regs_offset;
  94         wait_queue_head_t fw_wait;
  95         struct work_struct fw_work;
  96         struct cx25840_ir_state *ir_state;
  97 #if defined(CONFIG_MEDIA_CONTROLLER)
  98         struct media_pad        pads[CX25840_NUM_PADS];
  99 #endif
 100 };
 101
 102 static inline struct cx25840_state *to_state(struct v4l2_subdev *sd)
 103 {
 104         return container_of(sd, struct cx25840_state, sd);
 105 }
 106
 107 static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
 108 {
 109         return &container_of(ctrl->handler, struct cx25840_state, hdl)->sd;
 110 }
 111
 112 static inline bool is_cx2583x(struct cx25840_state *state)
 113 {
 114         return state->id == CX25836 ||
 115                state->id == CX25837;
 116 }
 117
 118 static inline bool is_cx2584x(struct cx25840_state *state)
 119 {
 120         return state->id == CX25840 ||
 121                state->id == CX25841 ||
 122                state->id == CX25842 ||
 123                state->id == CX25843;
 124 }
 125
 126 static inline bool is_cx231xx(struct cx25840_state *state)
 127 {
 128         return state->id == CX2310X_AV;
 129 }
 130
 131 static inline bool is_cx2388x(struct cx25840_state *state)
 132 {
 133         return state->id == CX23885_AV ||
 134                state->id == CX23887_AV ||
 135                state->id == CX23888_AV;
 136 }
 137
 138 static inline bool is_cx23885(struct cx25840_state *state)
 139 {
 140         return state->id == CX23885_AV;
 141 }
 142
 143 static inline bool is_cx23887(struct cx25840_state *state)
 144 {
 145         return state->id == CX23887_AV;
 146 }
 147
 148 static inline bool is_cx23888(struct cx25840_state *state)
 149 {
 150         return state->id == CX23888_AV;
 151 }
 152
 153 /* ----------------------------------------------------------------------- */
 154 /* cx25850-core.c                                                          */
 155 int cx25840_write(struct i2c_client *client, u16 addr, u8 value);
 156 int cx25840_write4(struct i2c_client *client, u16 addr, u32 value);
 157 u8 cx25840_read(struct i2c_client *client, u16 addr);
 158 u32 cx25840_read4(struct i2c_client *client, u16 addr);
 159 int cx25840_and_or(struct i2c_client *client, u16 addr, unsigned int mask,
 160                    u8 value);
 161 int cx25840_and_or4(struct i2c_client *client, u16 addr, u32 and_mask,
 162                     u32 or_value);
 163 void cx25840_std_setup(struct i2c_client *client);
 164
 165 /* ----------------------------------------------------------------------- */
 166 /* cx25850-firmware.c                                                      */
 167 int cx25840_loadfw(struct i2c_client *client);
 168
 169 /* ----------------------------------------------------------------------- */
 170 /* cx25850-audio.c                                                         */
 171 void cx25840_audio_set_path(struct i2c_client *client);
 172 int cx25840_s_clock_freq(struct v4l2_subdev *sd, u32 freq);
 173
 174 extern const struct v4l2_ctrl_ops cx25840_audio_ctrl_ops;
 175
 176 /* ----------------------------------------------------------------------- */
 177 /* cx25850-vbi.c                                                           */
 178 int cx25840_s_raw_fmt(struct v4l2_subdev *sd, struct v4l2_vbi_format *fmt);
 179 int cx25840_s_sliced_fmt(struct v4l2_subdev *sd,
 180                          struct v4l2_sliced_vbi_format *fmt);
 181 int cx25840_g_sliced_fmt(struct v4l2_subdev *sd,
 182                          struct v4l2_sliced_vbi_format *fmt);
 183 int cx25840_decode_vbi_line(struct v4l2_subdev *sd,
 184                             struct v4l2_decode_vbi_line *vbi);
 185
 186 /* ----------------------------------------------------------------------- */
 187 /* cx25850-ir.c                                                            */
 188 extern const struct v4l2_subdev_ir_ops cx25840_ir_ops;
 189 int cx25840_ir_log_status(struct v4l2_subdev *sd);
 190 int cx25840_ir_irq_handler(struct v4l2_subdev *sd, u32 status, bool *handled);
 191 int cx25840_ir_probe(struct v4l2_subdev *sd);
 192 int cx25840_ir_remove(struct v4l2_subdev *sd);
 193
 194 #endif