1513dbd35SMauro Carvalho Chehab // SPDX-License-Identifier: GPL-2.0
2cb7a01acSMauro Carvalho Chehab /*
3cb7a01acSMauro Carvalho Chehab * For the STS-Thompson TDA7432 audio processor chip
4cb7a01acSMauro Carvalho Chehab *
5cb7a01acSMauro Carvalho Chehab * Handles audio functions: volume, balance, tone, loudness
6cb7a01acSMauro Carvalho Chehab * This driver will not complain if used with any
7cb7a01acSMauro Carvalho Chehab * other i2c device with the same address.
8cb7a01acSMauro Carvalho Chehab *
9cb7a01acSMauro Carvalho Chehab * Muting and tone control by Jonathan Isom <jisom@ematic.com>
10cb7a01acSMauro Carvalho Chehab *
11cb7a01acSMauro Carvalho Chehab * Copyright (c) 2000 Eric Sandeen <eric_sandeen@bigfoot.com>
1232590819SMauro Carvalho Chehab * Copyright (c) 2006 Mauro Carvalho Chehab <mchehab@kernel.org>
13513dbd35SMauro Carvalho Chehab *
14cb7a01acSMauro Carvalho Chehab * Based on tda9855.c by Steve VanDeBogart (vandebo@uclink.berkeley.edu)
15cb7a01acSMauro Carvalho Chehab * Which was based on tda8425.c by Greg Alexander (c) 1998
16cb7a01acSMauro Carvalho Chehab *
17cb7a01acSMauro Carvalho Chehab * OPTIONS:
18cb7a01acSMauro Carvalho Chehab * debug - set to 1 if you'd like to see debug messages
19cb7a01acSMauro Carvalho Chehab * set to 2 if you'd like to be inundated with debug messages
20cb7a01acSMauro Carvalho Chehab *
21cb7a01acSMauro Carvalho Chehab * loudness - set between 0 and 15 for varying degrees of loudness effect
22cb7a01acSMauro Carvalho Chehab *
23fbdefb67SColin Ian King * maxvol - set maximum volume to +20db (1), default is 0db(0)
24cb7a01acSMauro Carvalho Chehab */
25cb7a01acSMauro Carvalho Chehab
26cb7a01acSMauro Carvalho Chehab #include <linux/module.h>
27cb7a01acSMauro Carvalho Chehab #include <linux/init.h>
28cb7a01acSMauro Carvalho Chehab #include <linux/kernel.h>
29cb7a01acSMauro Carvalho Chehab #include <linux/string.h>
30cb7a01acSMauro Carvalho Chehab #include <linux/timer.h>
31cb7a01acSMauro Carvalho Chehab #include <linux/delay.h>
32cb7a01acSMauro Carvalho Chehab #include <linux/errno.h>
33cb7a01acSMauro Carvalho Chehab #include <linux/slab.h>
34cb7a01acSMauro Carvalho Chehab #include <linux/videodev2.h>
35cb7a01acSMauro Carvalho Chehab #include <linux/i2c.h>
36cb7a01acSMauro Carvalho Chehab
37cb7a01acSMauro Carvalho Chehab #include <media/v4l2-device.h>
38cb7a01acSMauro Carvalho Chehab #include <media/v4l2-ioctl.h>
395d478e0dSHans Verkuil #include <media/v4l2-ctrls.h>
40cb7a01acSMauro Carvalho Chehab
41cb7a01acSMauro Carvalho Chehab #ifndef VIDEO_AUDIO_BALANCE
42cb7a01acSMauro Carvalho Chehab # define VIDEO_AUDIO_BALANCE 32
43cb7a01acSMauro Carvalho Chehab #endif
44cb7a01acSMauro Carvalho Chehab
45cb7a01acSMauro Carvalho Chehab MODULE_AUTHOR("Eric Sandeen <eric_sandeen@bigfoot.com>");
46cb7a01acSMauro Carvalho Chehab MODULE_DESCRIPTION("bttv driver for the tda7432 audio processor chip");
47cb7a01acSMauro Carvalho Chehab MODULE_LICENSE("GPL");
48cb7a01acSMauro Carvalho Chehab
49cb7a01acSMauro Carvalho Chehab static int maxvol;
50cb7a01acSMauro Carvalho Chehab static int loudness; /* disable loudness by default */
51cb7a01acSMauro Carvalho Chehab static int debug; /* insmod parameter */
52cb7a01acSMauro Carvalho Chehab module_param(debug, int, S_IRUGO | S_IWUSR);
53cb7a01acSMauro Carvalho Chehab MODULE_PARM_DESC(debug, "Set debugging level from 0 to 3. Default is off(0).");
54cb7a01acSMauro Carvalho Chehab module_param(loudness, int, S_IRUGO);
55cb7a01acSMauro Carvalho Chehab MODULE_PARM_DESC(loudness, "Turn loudness on(1) else off(0). Default is off(0).");
56cb7a01acSMauro Carvalho Chehab module_param(maxvol, int, S_IRUGO | S_IWUSR);
57fbdefb67SColin Ian King MODULE_PARM_DESC(maxvol, "Set maximum volume to +20dB(0) else +0dB(1). Default is +20dB(0).");
58cb7a01acSMauro Carvalho Chehab
59cb7a01acSMauro Carvalho Chehab
60cb7a01acSMauro Carvalho Chehab /* Structure of address and subaddresses for the tda7432 */
61cb7a01acSMauro Carvalho Chehab
62cb7a01acSMauro Carvalho Chehab struct tda7432 {
63cb7a01acSMauro Carvalho Chehab struct v4l2_subdev sd;
645d478e0dSHans Verkuil struct v4l2_ctrl_handler hdl;
655d478e0dSHans Verkuil struct {
665d478e0dSHans Verkuil /* bass/treble cluster */
675d478e0dSHans Verkuil struct v4l2_ctrl *bass;
685d478e0dSHans Verkuil struct v4l2_ctrl *treble;
695d478e0dSHans Verkuil };
705d478e0dSHans Verkuil struct {
715d478e0dSHans Verkuil /* mute/balance cluster */
725d478e0dSHans Verkuil struct v4l2_ctrl *mute;
735d478e0dSHans Verkuil struct v4l2_ctrl *balance;
745d478e0dSHans Verkuil };
75cb7a01acSMauro Carvalho Chehab };
76cb7a01acSMauro Carvalho Chehab
to_state(struct v4l2_subdev * sd)77cb7a01acSMauro Carvalho Chehab static inline struct tda7432 *to_state(struct v4l2_subdev *sd)
78cb7a01acSMauro Carvalho Chehab {
79cb7a01acSMauro Carvalho Chehab return container_of(sd, struct tda7432, sd);
80cb7a01acSMauro Carvalho Chehab }
81cb7a01acSMauro Carvalho Chehab
to_sd(struct v4l2_ctrl * ctrl)825d478e0dSHans Verkuil static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
835d478e0dSHans Verkuil {
845d478e0dSHans Verkuil return &container_of(ctrl->handler, struct tda7432, hdl)->sd;
855d478e0dSHans Verkuil }
865d478e0dSHans Verkuil
87cb7a01acSMauro Carvalho Chehab /* The TDA7432 is made by STS-Thompson
88cb7a01acSMauro Carvalho Chehab * http://www.st.com
89cb7a01acSMauro Carvalho Chehab * http://us.st.com/stonline/books/pdf/docs/4056.pdf
90cb7a01acSMauro Carvalho Chehab *
91cb7a01acSMauro Carvalho Chehab * TDA7432: I2C-bus controlled basic audio processor
92cb7a01acSMauro Carvalho Chehab *
93cb7a01acSMauro Carvalho Chehab * The TDA7432 controls basic audio functions like volume, balance,
94cb7a01acSMauro Carvalho Chehab * and tone control (including loudness). It also has four channel
95cb7a01acSMauro Carvalho Chehab * output (for front and rear). Since most vidcap cards probably
96cb7a01acSMauro Carvalho Chehab * don't have 4 channel output, this driver will set front & rear
97cb7a01acSMauro Carvalho Chehab * together (no independent control).
98cb7a01acSMauro Carvalho Chehab */
99cb7a01acSMauro Carvalho Chehab
100cb7a01acSMauro Carvalho Chehab /* Subaddresses for TDA7432 */
101cb7a01acSMauro Carvalho Chehab
102cb7a01acSMauro Carvalho Chehab #define TDA7432_IN 0x00 /* Input select */
103cb7a01acSMauro Carvalho Chehab #define TDA7432_VL 0x01 /* Volume */
104cb7a01acSMauro Carvalho Chehab #define TDA7432_TN 0x02 /* Bass, Treble (Tone) */
105cb7a01acSMauro Carvalho Chehab #define TDA7432_LF 0x03 /* Attenuation LF (Left Front) */
106cb7a01acSMauro Carvalho Chehab #define TDA7432_LR 0x04 /* Attenuation LR (Left Rear) */
107cb7a01acSMauro Carvalho Chehab #define TDA7432_RF 0x05 /* Attenuation RF (Right Front) */
108cb7a01acSMauro Carvalho Chehab #define TDA7432_RR 0x06 /* Attenuation RR (Right Rear) */
109cb7a01acSMauro Carvalho Chehab #define TDA7432_LD 0x07 /* Loudness */
110cb7a01acSMauro Carvalho Chehab
111cb7a01acSMauro Carvalho Chehab
112cb7a01acSMauro Carvalho Chehab /* Masks for bits in TDA7432 subaddresses */
113cb7a01acSMauro Carvalho Chehab
114cb7a01acSMauro Carvalho Chehab /* Many of these not used - just for documentation */
115cb7a01acSMauro Carvalho Chehab
116cb7a01acSMauro Carvalho Chehab /* Subaddress 0x00 - Input selection and bass control */
117cb7a01acSMauro Carvalho Chehab
118cb7a01acSMauro Carvalho Chehab /* Bits 0,1,2 control input:
119cb7a01acSMauro Carvalho Chehab * 0x00 - Stereo input
120cb7a01acSMauro Carvalho Chehab * 0x02 - Mono input
121cb7a01acSMauro Carvalho Chehab * 0x03 - Mute (Using Attenuators Plays better with modules)
122cb7a01acSMauro Carvalho Chehab * Mono probably isn't used - I'm guessing only the stereo
123cb7a01acSMauro Carvalho Chehab * input is connected on most cards, so we'll set it to stereo.
124cb7a01acSMauro Carvalho Chehab *
125cb7a01acSMauro Carvalho Chehab * Bit 3 controls bass cut: 0/1 is non-symmetric/symmetric bass cut
126cb7a01acSMauro Carvalho Chehab * Bit 4 controls bass range: 0/1 is extended/standard bass range
127cb7a01acSMauro Carvalho Chehab *
128cb7a01acSMauro Carvalho Chehab * Highest 3 bits not used
129cb7a01acSMauro Carvalho Chehab */
130cb7a01acSMauro Carvalho Chehab
131cb7a01acSMauro Carvalho Chehab #define TDA7432_STEREO_IN 0
132cb7a01acSMauro Carvalho Chehab #define TDA7432_MONO_IN 2 /* Probably won't be used */
133cb7a01acSMauro Carvalho Chehab #define TDA7432_BASS_SYM 1 << 3
134cb7a01acSMauro Carvalho Chehab #define TDA7432_BASS_NORM 1 << 4
135cb7a01acSMauro Carvalho Chehab
136cb7a01acSMauro Carvalho Chehab /* Subaddress 0x01 - Volume */
137cb7a01acSMauro Carvalho Chehab
138cb7a01acSMauro Carvalho Chehab /* Lower 7 bits control volume from -79dB to +32dB in 1dB steps
139cb7a01acSMauro Carvalho Chehab * Recommended maximum is +20 dB
140cb7a01acSMauro Carvalho Chehab *
141cb7a01acSMauro Carvalho Chehab * +32dB: 0x00
142cb7a01acSMauro Carvalho Chehab * +20dB: 0x0c
143cb7a01acSMauro Carvalho Chehab * 0dB: 0x20
144cb7a01acSMauro Carvalho Chehab * -79dB: 0x6f
145cb7a01acSMauro Carvalho Chehab *
146cb7a01acSMauro Carvalho Chehab * MSB (bit 7) controls loudness: 1/0 is loudness on/off
147cb7a01acSMauro Carvalho Chehab */
148cb7a01acSMauro Carvalho Chehab
149cb7a01acSMauro Carvalho Chehab #define TDA7432_VOL_0DB 0x20
150cb7a01acSMauro Carvalho Chehab #define TDA7432_LD_ON 1 << 7
151cb7a01acSMauro Carvalho Chehab
152cb7a01acSMauro Carvalho Chehab
153cb7a01acSMauro Carvalho Chehab /* Subaddress 0x02 - Tone control */
154cb7a01acSMauro Carvalho Chehab
155cb7a01acSMauro Carvalho Chehab /* Bits 0,1,2 control absolute treble gain from 0dB to 14dB
156cb7a01acSMauro Carvalho Chehab * 0x0 is 14dB, 0x7 is 0dB
157cb7a01acSMauro Carvalho Chehab *
158cb7a01acSMauro Carvalho Chehab * Bit 3 controls treble attenuation/gain (sign)
159cb7a01acSMauro Carvalho Chehab * 1 = gain (+)
160cb7a01acSMauro Carvalho Chehab * 0 = attenuation (-)
161cb7a01acSMauro Carvalho Chehab *
162cb7a01acSMauro Carvalho Chehab * Bits 4,5,6 control absolute bass gain from 0dB to 14dB
163cb7a01acSMauro Carvalho Chehab * (This is only true for normal base range, set in 0x00)
164cb7a01acSMauro Carvalho Chehab * 0x0 << 4 is 14dB, 0x7 is 0dB
165cb7a01acSMauro Carvalho Chehab *
166cb7a01acSMauro Carvalho Chehab * Bit 7 controls bass attenuation/gain (sign)
167cb7a01acSMauro Carvalho Chehab * 1 << 7 = gain (+)
168cb7a01acSMauro Carvalho Chehab * 0 << 7 = attenuation (-)
169cb7a01acSMauro Carvalho Chehab *
170cb7a01acSMauro Carvalho Chehab * Example:
171cb7a01acSMauro Carvalho Chehab * 1 1 0 1 0 1 0 1 is +4dB bass, -4dB treble
172cb7a01acSMauro Carvalho Chehab */
173cb7a01acSMauro Carvalho Chehab
174cb7a01acSMauro Carvalho Chehab #define TDA7432_TREBLE_0DB 0xf
175cb7a01acSMauro Carvalho Chehab #define TDA7432_TREBLE 7
176cb7a01acSMauro Carvalho Chehab #define TDA7432_TREBLE_GAIN 1 << 3
177cb7a01acSMauro Carvalho Chehab #define TDA7432_BASS_0DB 0xf
178cb7a01acSMauro Carvalho Chehab #define TDA7432_BASS 7 << 4
179cb7a01acSMauro Carvalho Chehab #define TDA7432_BASS_GAIN 1 << 7
180cb7a01acSMauro Carvalho Chehab
181cb7a01acSMauro Carvalho Chehab
182cb7a01acSMauro Carvalho Chehab /* Subaddress 0x03 - Left Front attenuation */
183cb7a01acSMauro Carvalho Chehab /* Subaddress 0x04 - Left Rear attenuation */
184cb7a01acSMauro Carvalho Chehab /* Subaddress 0x05 - Right Front attenuation */
185cb7a01acSMauro Carvalho Chehab /* Subaddress 0x06 - Right Rear attenuation */
186cb7a01acSMauro Carvalho Chehab
187cb7a01acSMauro Carvalho Chehab /* Bits 0,1,2,3,4 control attenuation from 0dB to -37.5dB
188cb7a01acSMauro Carvalho Chehab * in 1.5dB steps.
189cb7a01acSMauro Carvalho Chehab *
190cb7a01acSMauro Carvalho Chehab * 0x00 is 0dB
191cb7a01acSMauro Carvalho Chehab * 0x1f is -37.5dB
192cb7a01acSMauro Carvalho Chehab *
193cb7a01acSMauro Carvalho Chehab * Bit 5 mutes that channel when set (1 = mute, 0 = unmute)
194cb7a01acSMauro Carvalho Chehab * We'll use the mute on the input, though (above)
195cb7a01acSMauro Carvalho Chehab * Bits 6,7 unused
196cb7a01acSMauro Carvalho Chehab */
197cb7a01acSMauro Carvalho Chehab
198cb7a01acSMauro Carvalho Chehab #define TDA7432_ATTEN_0DB 0x00
199cb7a01acSMauro Carvalho Chehab #define TDA7432_MUTE 0x1 << 5
200cb7a01acSMauro Carvalho Chehab
201cb7a01acSMauro Carvalho Chehab
202cb7a01acSMauro Carvalho Chehab /* Subaddress 0x07 - Loudness Control */
203cb7a01acSMauro Carvalho Chehab
204cb7a01acSMauro Carvalho Chehab /* Bits 0,1,2,3 control loudness from 0dB to -15dB in 1dB steps
205cb7a01acSMauro Carvalho Chehab * when bit 4 is NOT set
206cb7a01acSMauro Carvalho Chehab *
207cb7a01acSMauro Carvalho Chehab * 0x0 is 0dB
208cb7a01acSMauro Carvalho Chehab * 0xf is -15dB
209cb7a01acSMauro Carvalho Chehab *
210cb7a01acSMauro Carvalho Chehab * If bit 4 is set, then there is a flat attenuation according to
211cb7a01acSMauro Carvalho Chehab * the lower 4 bits, as above.
212cb7a01acSMauro Carvalho Chehab *
213cb7a01acSMauro Carvalho Chehab * Bits 5,6,7 unused
214cb7a01acSMauro Carvalho Chehab */
215cb7a01acSMauro Carvalho Chehab
216cb7a01acSMauro Carvalho Chehab
217cb7a01acSMauro Carvalho Chehab
218cb7a01acSMauro Carvalho Chehab /* Begin code */
219cb7a01acSMauro Carvalho Chehab
tda7432_write(struct v4l2_subdev * sd,int subaddr,int val)220cb7a01acSMauro Carvalho Chehab static int tda7432_write(struct v4l2_subdev *sd, int subaddr, int val)
221cb7a01acSMauro Carvalho Chehab {
222cb7a01acSMauro Carvalho Chehab struct i2c_client *client = v4l2_get_subdevdata(sd);
223cb7a01acSMauro Carvalho Chehab unsigned char buffer[2];
224cb7a01acSMauro Carvalho Chehab
225cb7a01acSMauro Carvalho Chehab v4l2_dbg(2, debug, sd, "In tda7432_write\n");
226cb7a01acSMauro Carvalho Chehab v4l2_dbg(1, debug, sd, "Writing %d 0x%x\n", subaddr, val);
227cb7a01acSMauro Carvalho Chehab buffer[0] = subaddr;
228cb7a01acSMauro Carvalho Chehab buffer[1] = val;
229cb7a01acSMauro Carvalho Chehab if (2 != i2c_master_send(client, buffer, 2)) {
230cb7a01acSMauro Carvalho Chehab v4l2_err(sd, "I/O error, trying (write %d 0x%x)\n",
231cb7a01acSMauro Carvalho Chehab subaddr, val);
232cb7a01acSMauro Carvalho Chehab return -1;
233cb7a01acSMauro Carvalho Chehab }
234cb7a01acSMauro Carvalho Chehab return 0;
235cb7a01acSMauro Carvalho Chehab }
236cb7a01acSMauro Carvalho Chehab
tda7432_set(struct v4l2_subdev * sd)237cb7a01acSMauro Carvalho Chehab static int tda7432_set(struct v4l2_subdev *sd)
238cb7a01acSMauro Carvalho Chehab {
239cb7a01acSMauro Carvalho Chehab struct i2c_client *client = v4l2_get_subdevdata(sd);
240cb7a01acSMauro Carvalho Chehab unsigned char buf[16];
241cb7a01acSMauro Carvalho Chehab
242cb7a01acSMauro Carvalho Chehab buf[0] = TDA7432_IN;
2435d478e0dSHans Verkuil buf[1] = TDA7432_STEREO_IN | /* Main (stereo) input */
2445d478e0dSHans Verkuil TDA7432_BASS_SYM | /* Symmetric bass cut */
2455d478e0dSHans Verkuil TDA7432_BASS_NORM; /* Normal bass range */
2465d478e0dSHans Verkuil buf[2] = 0x3b;
2475d478e0dSHans Verkuil if (loudness) /* Turn loudness on? */
2485d478e0dSHans Verkuil buf[2] |= TDA7432_LD_ON;
2495d478e0dSHans Verkuil buf[3] = TDA7432_TREBLE_0DB | (TDA7432_BASS_0DB << 4);
2505d478e0dSHans Verkuil buf[4] = TDA7432_ATTEN_0DB;
2515d478e0dSHans Verkuil buf[5] = TDA7432_ATTEN_0DB;
2525d478e0dSHans Verkuil buf[6] = TDA7432_ATTEN_0DB;
2535d478e0dSHans Verkuil buf[7] = TDA7432_ATTEN_0DB;
2545d478e0dSHans Verkuil buf[8] = loudness;
2555d478e0dSHans Verkuil if (9 != i2c_master_send(client, buf, 9)) {
256cb7a01acSMauro Carvalho Chehab v4l2_err(sd, "I/O error, trying tda7432_set\n");
257cb7a01acSMauro Carvalho Chehab return -1;
258cb7a01acSMauro Carvalho Chehab }
259cb7a01acSMauro Carvalho Chehab
260cb7a01acSMauro Carvalho Chehab return 0;
261cb7a01acSMauro Carvalho Chehab }
262cb7a01acSMauro Carvalho Chehab
tda7432_log_status(struct v4l2_subdev * sd)2635d478e0dSHans Verkuil static int tda7432_log_status(struct v4l2_subdev *sd)
264cb7a01acSMauro Carvalho Chehab {
2655d478e0dSHans Verkuil struct tda7432 *state = to_state(sd);
266cb7a01acSMauro Carvalho Chehab
2675d478e0dSHans Verkuil v4l2_ctrl_handler_log_status(&state->hdl, sd->name);
2685d478e0dSHans Verkuil return 0;
269cb7a01acSMauro Carvalho Chehab }
270cb7a01acSMauro Carvalho Chehab
tda7432_s_ctrl(struct v4l2_ctrl * ctrl)2715d478e0dSHans Verkuil static int tda7432_s_ctrl(struct v4l2_ctrl *ctrl)
272cb7a01acSMauro Carvalho Chehab {
2735d478e0dSHans Verkuil struct v4l2_subdev *sd = to_sd(ctrl);
274cb7a01acSMauro Carvalho Chehab struct tda7432 *t = to_state(sd);
2755d478e0dSHans Verkuil u8 bass, treble, volume;
2765d478e0dSHans Verkuil u8 lf, lr, rf, rr;
277cb7a01acSMauro Carvalho Chehab
278cb7a01acSMauro Carvalho Chehab switch (ctrl->id) {
279cb7a01acSMauro Carvalho Chehab case V4L2_CID_AUDIO_MUTE:
2805d478e0dSHans Verkuil if (t->balance->val < 0) {
281cb7a01acSMauro Carvalho Chehab /* shifted to left, attenuate right */
2825d478e0dSHans Verkuil rr = rf = -t->balance->val;
2835d478e0dSHans Verkuil lr = lf = TDA7432_ATTEN_0DB;
2845d478e0dSHans Verkuil } else if (t->balance->val > 0) {
285cb7a01acSMauro Carvalho Chehab /* shifted to right, attenuate left */
2865d478e0dSHans Verkuil rr = rf = TDA7432_ATTEN_0DB;
2875d478e0dSHans Verkuil lr = lf = t->balance->val;
288cb7a01acSMauro Carvalho Chehab } else {
289cb7a01acSMauro Carvalho Chehab /* centered */
2905d478e0dSHans Verkuil rr = rf = TDA7432_ATTEN_0DB;
2915d478e0dSHans Verkuil lr = lf = TDA7432_ATTEN_0DB;
292cb7a01acSMauro Carvalho Chehab }
2935d478e0dSHans Verkuil if (t->mute->val) {
2945d478e0dSHans Verkuil lf |= TDA7432_MUTE;
2955d478e0dSHans Verkuil lr |= TDA7432_MUTE;
29691ba0e59SAxel Lin rf |= TDA7432_MUTE;
2975d478e0dSHans Verkuil rr |= TDA7432_MUTE;
298cb7a01acSMauro Carvalho Chehab }
299cb7a01acSMauro Carvalho Chehab /* Mute & update balance*/
3005d478e0dSHans Verkuil tda7432_write(sd, TDA7432_LF, lf);
3015d478e0dSHans Verkuil tda7432_write(sd, TDA7432_LR, lr);
3025d478e0dSHans Verkuil tda7432_write(sd, TDA7432_RF, rf);
3035d478e0dSHans Verkuil tda7432_write(sd, TDA7432_RR, rr);
304cb7a01acSMauro Carvalho Chehab return 0;
305cb7a01acSMauro Carvalho Chehab case V4L2_CID_AUDIO_VOLUME:
3065d478e0dSHans Verkuil volume = 0x6f - ctrl->val;
3075d478e0dSHans Verkuil if (loudness) /* Turn on the loudness bit */
3085d478e0dSHans Verkuil volume |= TDA7432_LD_ON;
3095d478e0dSHans Verkuil
3105d478e0dSHans Verkuil tda7432_write(sd, TDA7432_VL, volume);
3115d478e0dSHans Verkuil return 0;
312cb7a01acSMauro Carvalho Chehab case V4L2_CID_AUDIO_BASS:
3135d478e0dSHans Verkuil bass = t->bass->val;
3145d478e0dSHans Verkuil treble = t->treble->val;
3155d478e0dSHans Verkuil if (bass >= 0x8)
3165d478e0dSHans Verkuil bass = 14 - (bass - 8);
3175d478e0dSHans Verkuil if (treble >= 0x8)
3185d478e0dSHans Verkuil treble = 14 - (treble - 8);
3195d478e0dSHans Verkuil
3205d478e0dSHans Verkuil tda7432_write(sd, TDA7432_TN, 0x10 | (bass << 4) | treble);
3215d478e0dSHans Verkuil return 0;
322cb7a01acSMauro Carvalho Chehab }
323cb7a01acSMauro Carvalho Chehab return -EINVAL;
324cb7a01acSMauro Carvalho Chehab }
325cb7a01acSMauro Carvalho Chehab
326cb7a01acSMauro Carvalho Chehab /* ----------------------------------------------------------------------- */
327cb7a01acSMauro Carvalho Chehab
3285d478e0dSHans Verkuil static const struct v4l2_ctrl_ops tda7432_ctrl_ops = {
329cb7a01acSMauro Carvalho Chehab .s_ctrl = tda7432_s_ctrl,
330cb7a01acSMauro Carvalho Chehab };
331cb7a01acSMauro Carvalho Chehab
3325d478e0dSHans Verkuil static const struct v4l2_subdev_core_ops tda7432_core_ops = {
3335d478e0dSHans Verkuil .log_status = tda7432_log_status,
3345d478e0dSHans Verkuil };
3355d478e0dSHans Verkuil
336cb7a01acSMauro Carvalho Chehab static const struct v4l2_subdev_ops tda7432_ops = {
337cb7a01acSMauro Carvalho Chehab .core = &tda7432_core_ops,
338cb7a01acSMauro Carvalho Chehab };
339cb7a01acSMauro Carvalho Chehab
340cb7a01acSMauro Carvalho Chehab /* ----------------------------------------------------------------------- */
341cb7a01acSMauro Carvalho Chehab
342cb7a01acSMauro Carvalho Chehab /* *********************** *
343cb7a01acSMauro Carvalho Chehab * i2c interface functions *
344cb7a01acSMauro Carvalho Chehab * *********************** */
345cb7a01acSMauro Carvalho Chehab
tda7432_probe(struct i2c_client * client)34632231a53SUwe Kleine-König static int tda7432_probe(struct i2c_client *client)
347cb7a01acSMauro Carvalho Chehab {
348cb7a01acSMauro Carvalho Chehab struct tda7432 *t;
349cb7a01acSMauro Carvalho Chehab struct v4l2_subdev *sd;
350cb7a01acSMauro Carvalho Chehab
351cb7a01acSMauro Carvalho Chehab v4l_info(client, "chip found @ 0x%02x (%s)\n",
352cb7a01acSMauro Carvalho Chehab client->addr << 1, client->adapter->name);
353cb7a01acSMauro Carvalho Chehab
354c02b211dSLaurent Pinchart t = devm_kzalloc(&client->dev, sizeof(*t), GFP_KERNEL);
355cb7a01acSMauro Carvalho Chehab if (!t)
356cb7a01acSMauro Carvalho Chehab return -ENOMEM;
357cb7a01acSMauro Carvalho Chehab sd = &t->sd;
358cb7a01acSMauro Carvalho Chehab v4l2_i2c_subdev_init(sd, client, &tda7432_ops);
3595d478e0dSHans Verkuil v4l2_ctrl_handler_init(&t->hdl, 5);
3605d478e0dSHans Verkuil v4l2_ctrl_new_std(&t->hdl, &tda7432_ctrl_ops,
3615d478e0dSHans Verkuil V4L2_CID_AUDIO_VOLUME, 0, maxvol ? 0x68 : 0x4f, 1, maxvol ? 0x5d : 0x47);
3625d478e0dSHans Verkuil t->mute = v4l2_ctrl_new_std(&t->hdl, &tda7432_ctrl_ops,
3635d478e0dSHans Verkuil V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0);
3645d478e0dSHans Verkuil t->balance = v4l2_ctrl_new_std(&t->hdl, &tda7432_ctrl_ops,
3655d478e0dSHans Verkuil V4L2_CID_AUDIO_BALANCE, -31, 31, 1, 0);
3665d478e0dSHans Verkuil t->bass = v4l2_ctrl_new_std(&t->hdl, &tda7432_ctrl_ops,
3675d478e0dSHans Verkuil V4L2_CID_AUDIO_BASS, 0, 14, 1, 7);
3685d478e0dSHans Verkuil t->treble = v4l2_ctrl_new_std(&t->hdl, &tda7432_ctrl_ops,
3695d478e0dSHans Verkuil V4L2_CID_AUDIO_TREBLE, 0, 14, 1, 7);
3705d478e0dSHans Verkuil sd->ctrl_handler = &t->hdl;
3715d478e0dSHans Verkuil if (t->hdl.error) {
3725d478e0dSHans Verkuil int err = t->hdl.error;
3735d478e0dSHans Verkuil
3745d478e0dSHans Verkuil v4l2_ctrl_handler_free(&t->hdl);
3755d478e0dSHans Verkuil return err;
3765d478e0dSHans Verkuil }
3775d478e0dSHans Verkuil v4l2_ctrl_cluster(2, &t->bass);
3785d478e0dSHans Verkuil v4l2_ctrl_cluster(2, &t->mute);
3795d478e0dSHans Verkuil v4l2_ctrl_handler_setup(&t->hdl);
380cb7a01acSMauro Carvalho Chehab if (loudness < 0 || loudness > 15) {
381cb7a01acSMauro Carvalho Chehab v4l2_warn(sd, "loudness parameter must be between 0 and 15\n");
382cb7a01acSMauro Carvalho Chehab if (loudness < 0)
383cb7a01acSMauro Carvalho Chehab loudness = 0;
384cb7a01acSMauro Carvalho Chehab if (loudness > 15)
385cb7a01acSMauro Carvalho Chehab loudness = 15;
386cb7a01acSMauro Carvalho Chehab }
387cb7a01acSMauro Carvalho Chehab
3885d478e0dSHans Verkuil tda7432_set(sd);
389cb7a01acSMauro Carvalho Chehab return 0;
390cb7a01acSMauro Carvalho Chehab }
391cb7a01acSMauro Carvalho Chehab
tda7432_remove(struct i2c_client * client)392ed5c2f5fSUwe Kleine-König static void tda7432_remove(struct i2c_client *client)
393cb7a01acSMauro Carvalho Chehab {
394cb7a01acSMauro Carvalho Chehab struct v4l2_subdev *sd = i2c_get_clientdata(client);
3955d478e0dSHans Verkuil struct tda7432 *t = to_state(sd);
396cb7a01acSMauro Carvalho Chehab
3975d478e0dSHans Verkuil tda7432_set(sd);
398cb7a01acSMauro Carvalho Chehab v4l2_device_unregister_subdev(sd);
3995d478e0dSHans Verkuil v4l2_ctrl_handler_free(&t->hdl);
400cb7a01acSMauro Carvalho Chehab }
401cb7a01acSMauro Carvalho Chehab
402cb7a01acSMauro Carvalho Chehab static const struct i2c_device_id tda7432_id[] = {
403cb7a01acSMauro Carvalho Chehab { "tda7432", 0 },
404cb7a01acSMauro Carvalho Chehab { }
405cb7a01acSMauro Carvalho Chehab };
406cb7a01acSMauro Carvalho Chehab MODULE_DEVICE_TABLE(i2c, tda7432_id);
407cb7a01acSMauro Carvalho Chehab
408cb7a01acSMauro Carvalho Chehab static struct i2c_driver tda7432_driver = {
409cb7a01acSMauro Carvalho Chehab .driver = {
410cb7a01acSMauro Carvalho Chehab .name = "tda7432",
411cb7a01acSMauro Carvalho Chehab },
412*aaeb31c0SUwe Kleine-König .probe = tda7432_probe,
413cb7a01acSMauro Carvalho Chehab .remove = tda7432_remove,
414cb7a01acSMauro Carvalho Chehab .id_table = tda7432_id,
415cb7a01acSMauro Carvalho Chehab };
416cb7a01acSMauro Carvalho Chehab
417cb7a01acSMauro Carvalho Chehab module_i2c_driver(tda7432_driver);
418