1 // SPDX-License-Identifier: GPL-2.0-only
3  * Copyright (C) 2005-2006 Micronas USA Inc.
11 #include <media/v4l2-common.h>
12 #include <media/v4l2-ioctl.h>
13 #include <media/v4l2-device.h>
16 MODULE_DESCRIPTION("sony-btf-mpx driver");
33 static int force_mpx_mode = -1;
47 static int mpx_write(struct i2c_client *client, int dev, int addr, int val)  in mpx_write()  argument
53 	buffer[1] = addr >> 8;  in mpx_write()
54 	buffer[2] = addr & 0xff;  in mpx_write()
57 	msg.addr = client->addr;  in mpx_write()
61 	i2c_transfer(client->adapter, &msg, 1);  in mpx_write()
66  * MPX register values for the BTF-PG472Z:
71  *         ---------------------------------------------------------------
85  *  A2-1    1003    0020    0100    2601    5000    XXXX    0004    7500
86  *  A2-2    1003    0020    0100    2601    5000    XXXX    0005    7500
87  *  A2-3    1003    0020    0100    2601    5000    XXXX    0007    7500
111  *                      --------
141 	/* D/K A2-1 */	{ AUD_A2,	0x1003, 0x0020, 0x0100, 0x2601,
143 	/* D/K A2-2 */	{ AUD_A2,	0x1003, 0x0020, 0x0100, 0x2601,
145 	/* D/K A2-3 */	{ AUD_A2,	0x1003, 0x0020, 0x0100, 0x2601,
159 	struct i2c_client *client = v4l2_get_subdevdata(&t->sd);  in mpx_setup()
163 	int mode = t->mpxmode;  in mpx_setup()  local
169 	msg.addr = client->addr;  in mpx_setup()
173 	i2c_transfer(client->adapter, &msg, 1);  in mpx_setup()
175 	i2c_transfer(client->adapter, &msg, 1);  in mpx_setup()
177 	if (t->audmode != V4L2_TUNER_MODE_MONO)  in mpx_setup()
178 		mode++;  in mpx_setup()
180 	if (mpx_audio_modes[mode].audio_mode != AUD_MONO) {  in mpx_setup()
181 		switch (t->audmode) {  in mpx_setup()
183 			switch (mpx_audio_modes[mode].audio_mode) {  in mpx_setup()
185 				source = mpx_audio_modes[mode].source;  in mpx_setup()
198 			source = mpx_audio_modes[mode].source;  in mpx_setup()
207 		source |= mpx_audio_modes[mode].source & 0x00ff;  in mpx_setup()
209 		source = mpx_audio_modes[mode].source;  in mpx_setup()
211 	mpx_write(client, 0x10, 0x0030, mpx_audio_modes[mode].modus);  in mpx_setup()
213 	mpx_write(client, 0x12, 0x0013, mpx_audio_modes[mode].acb);  in mpx_setup()
215 			mpx_audio_modes[mode].fm_prescale);  in mpx_setup()
217 			mpx_audio_modes[mode].nicam_prescale);  in mpx_setup()
219 			mpx_audio_modes[mode].scart_prescale);  in mpx_setup()
220 	mpx_write(client, 0x10, 0x0020, mpx_audio_modes[mode].system);  in mpx_setup()
221 	mpx_write(client, 0x12, 0x0000, mpx_audio_modes[mode].volume);  in mpx_setup()
222 	if (mpx_audio_modes[mode].audio_mode == AUD_A2)  in mpx_setup()
224 			t->audmode == V4L2_TUNER_MODE_MONO ? 0x07f0 : 0x0190);  in mpx_setup()
233 			mpx_audio_modes[mode].modus,  in mpx_setup()
235 			mpx_audio_modes[mode].acb,  in mpx_setup()
236 			mpx_audio_modes[mode].fm_prescale,  in mpx_setup()
237 			mpx_audio_modes[mode].nicam_prescale,  in mpx_setup()
238 			mpx_audio_modes[mode].scart_prescale,  in mpx_setup()
239 			mpx_audio_modes[mode].system,  in mpx_setup()
240 			mpx_audio_modes[mode].volume);  in mpx_setup()
244 		msgs[0].addr = client->addr;  in mpx_setup()
248 		msgs[1].addr = client->addr;  in mpx_setup()
252 		i2c_transfer(client->adapter, msgs, 2);  in mpx_setup()
258 		i2c_transfer(client->adapter, msgs, 2);  in mpx_setup()
281 	if (default_mpx_mode != t->mpxmode) {  in sony_btf_mpx_s_std()
282 		t->mpxmode = default_mpx_mode;  in sony_btf_mpx_s_std()
292 	vt->capability = V4L2_TUNER_CAP_NORM |  in sony_btf_mpx_g_tuner()
295 	vt->rxsubchans = V4L2_TUNER_SUB_MONO |  in sony_btf_mpx_g_tuner()
298 	vt->audmode = t->audmode;  in sony_btf_mpx_g_tuner()
306 	if (vt->type != V4L2_TUNER_ANALOG_TV)  in sony_btf_mpx_s_tuner()
307 		return -EINVAL;  in sony_btf_mpx_s_tuner()
309 	if (vt->audmode != t->audmode) {  in sony_btf_mpx_s_tuner()
310 		t->audmode = vt->audmode;  in sony_btf_mpx_s_tuner()
316 /* --------------------------------------------------------------------------*/
332 /* --------------------------------------------------------------------------*/
339 	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_I2C_BLOCK))  in sony_btf_mpx_probe()
340 		return -ENODEV;  in sony_btf_mpx_probe()
343 			client->addr << 1, client->adapter->name);  in sony_btf_mpx_probe()
345 	t = devm_kzalloc(&client->dev, sizeof(*t), GFP_KERNEL);  in sony_btf_mpx_probe()
347 		return -ENOMEM;  in sony_btf_mpx_probe()
349 	sd = &t->sd;  in sony_btf_mpx_probe()
353 	t->mpxmode = 0;  in sony_btf_mpx_probe()
354 	t->audmode = V4L2_TUNER_MODE_STEREO;  in sony_btf_mpx_probe()
366 /* ----------------------------------------------------------------------- */
369 	{ "sony-btf-mpx" },
376 		.name	= "sony-btf-mpx",