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cx25840-core.h
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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  * You should have received a copy of the GNU General Public License
16  * along with this program; if not, write to the Free Software
17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18  */
19 
20 #ifndef _CX25840_CORE_H_
21 #define _CX25840_CORE_H_
22 
23 
24 #include <linux/videodev2.h>
25 #include <media/v4l2-device.h>
26 #include <media/v4l2-chip-ident.h>
27 #include <media/v4l2-ctrls.h>
28 #include <linux/i2c.h>
29 
30 struct cx25840_ir_state;
31 
32 struct cx25840_state {
33  struct i2c_client *c;
34  struct v4l2_subdev sd;
35  struct v4l2_ctrl_handler hdl;
36  struct {
37  /* volume cluster */
38  struct v4l2_ctrl *volume;
39  struct v4l2_ctrl *mute;
40  };
41  int pvr150_workaround;
42  int radio;
43  v4l2_std_id std;
44  enum cx25840_video_input vid_input;
45  enum cx25840_audio_input aud_input;
46  u32 audclk_freq;
47  int audmode;
48  int vbi_line_offset;
49  u32 id;
50  u32 rev;
51  int is_initialized;
52  wait_queue_head_t fw_wait; /* wake up when the fw load is finished */
53  struct work_struct fw_work; /* work entry for fw load */
54  struct cx25840_ir_state *ir_state;
55 };
56 
57 static inline struct cx25840_state *to_state(struct v4l2_subdev *sd)
58 {
59  return container_of(sd, struct cx25840_state, sd);
60 }
61 
62 static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
63 {
64  return &container_of(ctrl->handler, struct cx25840_state, hdl)->sd;
65 }
66 
67 static inline bool is_cx2583x(struct cx25840_state *state)
68 {
69  return state->id == V4L2_IDENT_CX25836 ||
70  state->id == V4L2_IDENT_CX25837;
71 }
72 
73 static inline bool is_cx231xx(struct cx25840_state *state)
74 {
75  return state->id == V4L2_IDENT_CX2310X_AV;
76 }
77 
78 static inline bool is_cx2388x(struct cx25840_state *state)
79 {
80  return state->id == V4L2_IDENT_CX23885_AV ||
81  state->id == V4L2_IDENT_CX23887_AV ||
82  state->id == V4L2_IDENT_CX23888_AV;
83 }
84 
85 static inline bool is_cx23885(struct cx25840_state *state)
86 {
87  return state->id == V4L2_IDENT_CX23885_AV;
88 }
89 
90 static inline bool is_cx23887(struct cx25840_state *state)
91 {
92  return state->id == V4L2_IDENT_CX23887_AV;
93 }
94 
95 static inline bool is_cx23888(struct cx25840_state *state)
96 {
97  return state->id == V4L2_IDENT_CX23888_AV;
98 }
99 
100 /* ----------------------------------------------------------------------- */
101 /* cx25850-core.c */
102 int cx25840_write(struct i2c_client *client, u16 addr, u8 value);
103 int cx25840_write4(struct i2c_client *client, u16 addr, u32 value);
104 u8 cx25840_read(struct i2c_client *client, u16 addr);
105 u32 cx25840_read4(struct i2c_client *client, u16 addr);
106 int cx25840_and_or(struct i2c_client *client, u16 addr, unsigned mask, u8 value);
107 int cx25840_and_or4(struct i2c_client *client, u16 addr, u32 and_mask,
108  u32 or_value);
109 void cx25840_std_setup(struct i2c_client *client);
110 
111 /* ----------------------------------------------------------------------- */
112 /* cx25850-firmware.c */
113 int cx25840_loadfw(struct i2c_client *client);
114 
115 /* ----------------------------------------------------------------------- */
116 /* cx25850-audio.c */
117 void cx25840_audio_set_path(struct i2c_client *client);
118 int cx25840_s_clock_freq(struct v4l2_subdev *sd, u32 freq);
119 
120 extern const struct v4l2_ctrl_ops cx25840_audio_ctrl_ops;
121 
122 /* ----------------------------------------------------------------------- */
123 /* cx25850-vbi.c */
124 int cx25840_s_raw_fmt(struct v4l2_subdev *sd, struct v4l2_vbi_format *fmt);
125 int cx25840_s_sliced_fmt(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_format *fmt);
126 int cx25840_g_sliced_fmt(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_format *fmt);
127 int cx25840_decode_vbi_line(struct v4l2_subdev *sd, struct v4l2_decode_vbi_line *vbi);
128 
129 /* ----------------------------------------------------------------------- */
130 /* cx25850-ir.c */
131 extern const struct v4l2_subdev_ir_ops cx25840_ir_ops;
132 int cx25840_ir_log_status(struct v4l2_subdev *sd);
133 int cx25840_ir_irq_handler(struct v4l2_subdev *sd, u32 status, bool *handled);
134 int cx25840_ir_probe(struct v4l2_subdev *sd);
135 int cx25840_ir_remove(struct v4l2_subdev *sd);
136 
137 #endif
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