3 // IDT821034 ALSA SoC driver
25 struct idt821034 {  struct
51 static int idt821034_8bit_write(struct idt821034 *idt821034, u8 val)  in idt821034_8bit_write()  argument
55 			.tx_buf = &idt821034->spi_tx_buf,  in idt821034_8bit_write()
59 			.tx_buf = &idt821034->spi_tx_buf,  in idt821034_8bit_write()
64 	idt821034->spi_tx_buf = val;  in idt821034_8bit_write()
66 	dev_vdbg(&idt821034->spi->dev, "spi xfer wr 0x%x\n", val);  in idt821034_8bit_write()
68 	return spi_sync_transfer(idt821034->spi, xfer, 2);  in idt821034_8bit_write()
71 static int idt821034_2x8bit_write(struct idt821034 *idt821034, u8 val1, u8 val2)  in idt821034_2x8bit_write()  argument
75 	ret = idt821034_8bit_write(idt821034, val1);  in idt821034_2x8bit_write()
78 	return idt821034_8bit_write(idt821034, val2);  in idt821034_2x8bit_write()
81 static int idt821034_8bit_read(struct idt821034 *idt821034, u8 valw, u8 *valr)  in idt821034_8bit_read()  argument
85 			.tx_buf = &idt821034->spi_tx_buf,  in idt821034_8bit_read()
86 			.rx_buf = &idt821034->spi_rx_buf,  in idt821034_8bit_read()
90 			.tx_buf = &idt821034->spi_tx_buf,  in idt821034_8bit_read()
96 	idt821034->spi_tx_buf = valw;  in idt821034_8bit_read()
98 	ret = spi_sync_transfer(idt821034->spi, xfer, 2);  in idt821034_8bit_read()
102 	*valr = idt821034->spi_rx_buf;  in idt821034_8bit_read()
104 	dev_vdbg(&idt821034->spi->dev, "spi xfer wr 0x%x, rd 0x%x\n",  in idt821034_8bit_read()
119 static int idt821034_set_channel_power(struct idt821034 *idt821034, u8 ch, u8 power)  in idt821034_set_channel_power()  argument
124 	dev_dbg(&idt821034->spi->dev, "set_channel_power(%u, 0x%x)\n", ch, power);  in idt821034_set_channel_power()
126 	conf = IDT821034_MODE_CODEC(ch) | idt821034->cache.codec_conf;  in idt821034_set_channel_power()
129 		ret = idt821034_2x8bit_write(idt821034,  in idt821034_set_channel_power()
131 					     idt821034->cache.ch[ch].rx_slot);  in idt821034_set_channel_power()
136 		ret = idt821034_2x8bit_write(idt821034,  in idt821034_set_channel_power()
138 					     idt821034->cache.ch[ch].tx_slot);  in idt821034_set_channel_power()
143 		ret = idt821034_2x8bit_write(idt821034, conf, 0);  in idt821034_set_channel_power()
148 	idt821034->cache.ch[ch].power = power;  in idt821034_set_channel_power()
153 static u8 idt821034_get_channel_power(struct idt821034 *idt821034, u8 ch)  in idt821034_get_channel_power()  argument
155 	return idt821034->cache.ch[ch].power;  in idt821034_get_channel_power()
162 static int idt821034_set_codec_conf(struct idt821034 *idt821034, u8 codec_conf)  in idt821034_set_codec_conf()  argument
168 	dev_dbg(&idt821034->spi->dev, "set_codec_conf(0x%x)\n", codec_conf);  in idt821034_set_codec_conf()
180 	if (idt821034->cache.ch[0].power & IDT821034_CONF_PWRUP_RX) {  in idt821034_set_codec_conf()
182 		ts = idt821034->cache.ch[0].rx_slot;  in idt821034_set_codec_conf()
183 	} else if (idt821034->cache.ch[0].power & IDT821034_CONF_PWRUP_TX) {  in idt821034_set_codec_conf()
185 		ts = idt821034->cache.ch[0].tx_slot;  in idt821034_set_codec_conf()
191 	ret = idt821034_2x8bit_write(idt821034, conf, ts);  in idt821034_set_codec_conf()
195 	idt821034->cache.codec_conf = codec_conf;  in idt821034_set_codec_conf()
199 static u8 idt821034_get_codec_conf(struct idt821034 *idt821034)  in idt821034_get_codec_conf()  argument
201 	return idt821034->cache.codec_conf;  in idt821034_get_codec_conf()
208 static int idt821034_set_channel_ts(struct idt821034 *idt821034, u8 ch, u8 ch_dir, u8 ts_num)  in idt821034_set_channel_ts()  argument
213 	dev_dbg(&idt821034->spi->dev, "set_channel_ts(%u, 0x%x, %d)\n", ch, ch_dir, ts_num);  in idt821034_set_channel_ts()
215 	conf = IDT821034_MODE_CODEC(ch) | idt821034->cache.codec_conf;  in idt821034_set_channel_ts()
218 		if (idt821034->cache.ch[ch].power & IDT821034_CONF_PWRUP_RX) {  in idt821034_set_channel_ts()
219 			ret = idt821034_2x8bit_write(idt821034,  in idt821034_set_channel_ts()
225 		idt821034->cache.ch[ch].rx_slot = ts_num;  in idt821034_set_channel_ts()
228 		if (idt821034->cache.ch[ch].power & IDT821034_CONF_PWRUP_TX) {  in idt821034_set_channel_ts()
229 			ret = idt821034_2x8bit_write(idt821034,  in idt821034_set_channel_ts()
235 		idt821034->cache.ch[ch].tx_slot = ts_num;  in idt821034_set_channel_ts()
245 static int idt821034_set_slic_conf(struct idt821034 *idt821034, u8 ch, u8 slic_dir)  in idt821034_set_slic_conf()  argument
250 	dev_dbg(&idt821034->spi->dev, "set_slic_conf(%u, 0x%x)\n", ch, slic_dir);  in idt821034_set_slic_conf()
253 	ret = idt821034_2x8bit_write(idt821034, conf, idt821034->cache.ch[ch].slic_control);  in idt821034_set_slic_conf()
257 	idt821034->cache.ch[ch].slic_conf = slic_dir;  in idt821034_set_slic_conf()
262 static u8 idt821034_get_slic_conf(struct idt821034 *idt821034, u8 ch)  in idt821034_get_slic_conf()  argument
264 	return idt821034->cache.ch[ch].slic_conf;  in idt821034_get_slic_conf()
267 static int idt821034_write_slic_raw(struct idt821034 *idt821034, u8 ch, u8 slic_raw)  in idt821034_write_slic_raw()  argument
272 	dev_dbg(&idt821034->spi->dev, "write_slic_raw(%u, 0x%x)\n", ch, slic_raw);  in idt821034_write_slic_raw()
283 	conf = IDT821034_MODE_SLIC(ch) | idt821034->cache.ch[ch].slic_conf;  in idt821034_write_slic_raw()
284 	ret = idt821034_2x8bit_write(idt821034, conf, slic_raw);  in idt821034_write_slic_raw()
288 	idt821034->cache.ch[ch].slic_control = slic_raw;  in idt821034_write_slic_raw()
292 static u8 idt821034_get_written_slic_raw(struct idt821034 *idt821034, u8 ch)  in idt821034_get_written_slic_raw()  argument
294 	return idt821034->cache.ch[ch].slic_control;  in idt821034_get_written_slic_raw()
297 static int idt821034_read_slic_raw(struct idt821034 *idt821034, u8 ch, u8 *slic_raw)  in idt821034_read_slic_raw()  argument
314 	val = IDT821034_MODE_SLIC(ch) | idt821034->cache.ch[ch].slic_conf;  in idt821034_read_slic_raw()
315 	ret = idt821034_8bit_write(idt821034, val);  in idt821034_read_slic_raw()
319 	ret = idt821034_8bit_read(idt821034, idt821034->cache.ch[ch].slic_control, slic_raw);  in idt821034_read_slic_raw()
323 	dev_dbg(&idt821034->spi->dev, "read_slic_raw(%i) 0x%x\n", ch, *slic_raw);  in idt821034_read_slic_raw()
332 static int idt821034_set_gain_channel(struct idt821034 *idt821034, u8 ch,  in idt821034_set_gain_channel()  argument
338 	dev_dbg(&idt821034->spi->dev, "set_gain_channel(%u, 0x%x, 0x%x-%d)\n",  in idt821034_set_gain_channel()
379 	ret = idt821034_2x8bit_write(idt821034, conf | 0x00, gain_val & 0x007F);  in idt821034_set_gain_channel()
383 	ret = idt821034_2x8bit_write(idt821034, conf | 0x01, (gain_val >> 7) & 0x7F);  in idt821034_set_gain_channel()
406 	struct idt821034 *idt821034 = snd_soc_component_get_drvdata(component);  in idt821034_kctrl_gain_get()  local
416 	mutex_lock(&idt821034->mutex);  in idt821034_kctrl_gain_get()
418 		val = idt821034->amps.ch[ch].amp_out.gain;  in idt821034_kctrl_gain_get()
420 		val = idt821034->amps.ch[ch].amp_in.gain;  in idt821034_kctrl_gain_get()
421 	mutex_unlock(&idt821034->mutex);  in idt821034_kctrl_gain_get()
437 	struct idt821034 *idt821034 = snd_soc_component_get_drvdata(component);  in idt821034_kctrl_gain_put()  local
459 	mutex_lock(&idt821034->mutex);  in idt821034_kctrl_gain_put()
462 		amp = &idt821034->amps.ch[ch].amp_out;  in idt821034_kctrl_gain_put()
465 		amp = &idt821034->amps.ch[ch].amp_in;  in idt821034_kctrl_gain_put()
475 		ret = idt821034_set_gain_channel(idt821034, ch, gain_type, val);  in idt821034_kctrl_gain_put()
483 	mutex_unlock(&idt821034->mutex);  in idt821034_kctrl_gain_put()
491 	struct idt821034 *idt821034 = snd_soc_component_get_drvdata(component);  in idt821034_kctrl_mute_get()  local
498 	mutex_lock(&idt821034->mutex);  in idt821034_kctrl_mute_get()
500 			idt821034->amps.ch[ch].amp_out.is_muted :  in idt821034_kctrl_mute_get()
501 			idt821034->amps.ch[ch].amp_in.is_muted;  in idt821034_kctrl_mute_get()
502 	mutex_unlock(&idt821034->mutex);  in idt821034_kctrl_mute_get()
513 	struct idt821034 *idt821034 = snd_soc_component_get_drvdata(component);  in idt821034_kctrl_mute_put()  local
524 	mutex_lock(&idt821034->mutex);  in idt821034_kctrl_mute_put()
527 		amp = &idt821034->amps.ch[ch].amp_out;  in idt821034_kctrl_mute_put()
530 		amp = &idt821034->amps.ch[ch].amp_in;  in idt821034_kctrl_mute_put()
539 	ret = idt821034_set_gain_channel(idt821034, ch, gain_type,  in idt821034_kctrl_mute_put()
547 	mutex_unlock(&idt821034->mutex);  in idt821034_kctrl_mute_put()
623 	struct idt821034 *idt821034 = snd_soc_component_get_drvdata(component);  in idt821034_power_event()  local
632 	mutex_lock(&idt821034->mutex);  in idt821034_power_event()
634 	power = idt821034_get_channel_power(idt821034, ch);  in idt821034_power_event()
639 	ret = idt821034_set_channel_power(idt821034, ch, power);  in idt821034_power_event()
641 	mutex_unlock(&idt821034->mutex);  in idt821034_power_event()
700 	struct idt821034 *idt821034 = snd_soc_component_get_drvdata(dai->component);  in idt821034_dai_set_tdm_slot()  local
720 			mutex_lock(&idt821034->mutex);  in idt821034_dai_set_tdm_slot()
721 			ret = idt821034_set_channel_ts(idt821034, ch, IDT821034_CH_RX, slot);  in idt821034_dai_set_tdm_slot()
722 			mutex_unlock(&idt821034->mutex);  in idt821034_dai_set_tdm_slot()
738 	idt821034->max_ch_playback = ch;  in idt821034_dai_set_tdm_slot()
745 			mutex_lock(&idt821034->mutex);  in idt821034_dai_set_tdm_slot()
746 			ret = idt821034_set_channel_ts(idt821034, ch, IDT821034_CH_TX, slot);  in idt821034_dai_set_tdm_slot()
747 			mutex_unlock(&idt821034->mutex);  in idt821034_dai_set_tdm_slot()
763 	idt821034->max_ch_capture = ch;  in idt821034_dai_set_tdm_slot()
770 	struct idt821034 *idt821034 = snd_soc_component_get_drvdata(dai->component);  in idt821034_dai_set_fmt()  local
774 	mutex_lock(&idt821034->mutex);  in idt821034_dai_set_fmt()
776 	conf = idt821034_get_codec_conf(idt821034);  in idt821034_dai_set_fmt()
791 	ret = idt821034_set_codec_conf(idt821034, conf);  in idt821034_dai_set_fmt()
793 	mutex_unlock(&idt821034->mutex);  in idt821034_dai_set_fmt()
801 	struct idt821034 *idt821034 = snd_soc_component_get_drvdata(dai->component);  in idt821034_dai_hw_params()  local
805 	mutex_lock(&idt821034->mutex);  in idt821034_dai_hw_params()
807 	conf = idt821034_get_codec_conf(idt821034);  in idt821034_dai_hw_params()
822 	ret = idt821034_set_codec_conf(idt821034, conf);  in idt821034_dai_hw_params()
824 	mutex_unlock(&idt821034->mutex);  in idt821034_dai_hw_params()
838 	struct idt821034 *idt821034 = snd_soc_component_get_drvdata(dai->component);  in idt821034_dai_startup()  local
843 		idt821034->max_ch_playback : idt821034->max_ch_capture;  in idt821034_dai_startup()
878 	.name = "idt821034",
896 static int idt821034_reset_audio(struct idt821034 *idt821034)  in idt821034_reset_audio()  argument
901 	mutex_lock(&idt821034->mutex);  in idt821034_reset_audio()
903 	ret = idt821034_set_codec_conf(idt821034, 0);  in idt821034_reset_audio()
908 		idt821034->amps.ch[i].amp_out.gain = IDT821034_GAIN_OUT_INIT_RAW;  in idt821034_reset_audio()
909 		idt821034->amps.ch[i].amp_out.is_muted = false;  in idt821034_reset_audio()
910 		ret = idt821034_set_gain_channel(idt821034, i, IDT821034_GAIN_RX,  in idt821034_reset_audio()
911 						 idt821034->amps.ch[i].amp_out.gain);  in idt821034_reset_audio()
915 		idt821034->amps.ch[i].amp_in.gain = IDT821034_GAIN_IN_INIT_RAW;  in idt821034_reset_audio()
916 		idt821034->amps.ch[i].amp_in.is_muted = false;  in idt821034_reset_audio()
917 		ret = idt821034_set_gain_channel(idt821034, i, IDT821034_GAIN_TX,  in idt821034_reset_audio()
918 						 idt821034->amps.ch[i].amp_in.gain);  in idt821034_reset_audio()
922 		ret = idt821034_set_channel_power(idt821034, i, 0);  in idt821034_reset_audio()
929 	mutex_unlock(&idt821034->mutex);  in idt821034_reset_audio()
935 	struct idt821034 *idt821034 = snd_soc_component_get_drvdata(component);  in idt821034_component_probe()  local
938 	/* reset idt821034 audio part*/  in idt821034_component_probe()
939 	ret = idt821034_reset_audio(idt821034);  in idt821034_component_probe()
964 	struct idt821034 *idt821034 = gpiochip_get_data(c);  in idt821034_chip_gpio_set()  local
968 	mutex_lock(&idt821034->mutex);  in idt821034_chip_gpio_set()
970 	slic_raw = idt821034_get_written_slic_raw(idt821034, ch);  in idt821034_chip_gpio_set()
975 	ret = idt821034_write_slic_raw(idt821034, ch, slic_raw);  in idt821034_chip_gpio_set()
977 		dev_err(&idt821034->spi->dev, "set gpio %d (%u, 0x%x) failed (%d)\n",  in idt821034_chip_gpio_set()
981 	mutex_unlock(&idt821034->mutex);  in idt821034_chip_gpio_set()
988 	struct idt821034 *idt821034 = gpiochip_get_data(c);  in idt821034_chip_gpio_get()  local
992 	mutex_lock(&idt821034->mutex);  in idt821034_chip_gpio_get()
993 	ret = idt821034_read_slic_raw(idt821034, ch, &slic_raw);  in idt821034_chip_gpio_get()
994 	mutex_unlock(&idt821034->mutex);  in idt821034_chip_gpio_get()
996 		dev_err(&idt821034->spi->dev, "get gpio %d (%u, 0x%x) failed (%d)\n",  in idt821034_chip_gpio_get()
1013 	struct idt821034 *idt821034 = gpiochip_get_data(c);  in idt821034_chip_get_direction()  local
1016 	mutex_lock(&idt821034->mutex);  in idt821034_chip_get_direction()
1017 	slic_dir = idt821034_get_slic_conf(idt821034, ch);  in idt821034_chip_get_direction()
1018 	mutex_unlock(&idt821034->mutex);  in idt821034_chip_get_direction()
1027 	struct idt821034 *idt821034 = gpiochip_get_data(c);  in idt821034_chip_direction_input()  local
1035 	mutex_lock(&idt821034->mutex);  in idt821034_chip_direction_input()
1037 	slic_conf = idt821034_get_slic_conf(idt821034, ch) | mask;  in idt821034_chip_direction_input()
1039 	ret = idt821034_set_slic_conf(idt821034, ch, slic_conf);  in idt821034_chip_direction_input()
1041 		dev_err(&idt821034->spi->dev, "dir in gpio %d (%u, 0x%x) failed (%d)\n",  in idt821034_chip_direction_input()
1045 	mutex_unlock(&idt821034->mutex);  in idt821034_chip_direction_input()
1053 	struct idt821034 *idt821034 = gpiochip_get_data(c);  in idt821034_chip_direction_output()  local
1059 	mutex_lock(&idt821034->mutex);  in idt821034_chip_direction_output()
1061 	slic_conf = idt821034_get_slic_conf(idt821034, ch) & ~mask;  in idt821034_chip_direction_output()
1063 	ret = idt821034_set_slic_conf(idt821034, ch, slic_conf);  in idt821034_chip_direction_output()
1065 		dev_err(&idt821034->spi->dev, "dir in gpio %d (%u, 0x%x) failed (%d)\n",  in idt821034_chip_direction_output()
1069 	mutex_unlock(&idt821034->mutex);  in idt821034_chip_direction_output()
1073 static int idt821034_reset_gpio(struct idt821034 *idt821034)  in idt821034_reset_gpio()  argument
1078 	mutex_lock(&idt821034->mutex);  in idt821034_reset_gpio()
1082 		ret = idt821034_set_slic_conf(idt821034, i,  in idt821034_reset_gpio()
1087 		ret = idt821034_write_slic_raw(idt821034, i, 0);  in idt821034_reset_gpio()
1094 	mutex_unlock(&idt821034->mutex);  in idt821034_reset_gpio()
1098 static int idt821034_gpio_init(struct idt821034 *idt821034)  in idt821034_gpio_init()  argument
1102 	ret = idt821034_reset_gpio(idt821034);  in idt821034_gpio_init()
1106 	idt821034->gpio_chip.owner = THIS_MODULE;  in idt821034_gpio_init()
1107 	idt821034->gpio_chip.label = dev_name(&idt821034->spi->dev);  in idt821034_gpio_init()
1108 	idt821034->gpio_chip.parent = &idt821034->spi->dev;  in idt821034_gpio_init()
1109 	idt821034->gpio_chip.base = -1;  in idt821034_gpio_init()
1110 	idt821034->gpio_chip.ngpio = 5 * 4; /* 5 GPIOs on 4 channels */  in idt821034_gpio_init()
1111 	idt821034->gpio_chip.get_direction = idt821034_chip_get_direction;  in idt821034_gpio_init()
1112 	idt821034->gpio_chip.direction_input = idt821034_chip_direction_input;  in idt821034_gpio_init()
1113 	idt821034->gpio_chip.direction_output = idt821034_chip_direction_output;  in idt821034_gpio_init()
1114 	idt821034->gpio_chip.get = idt821034_chip_gpio_get;  in idt821034_gpio_init()
1115 	idt821034->gpio_chip.set = idt821034_chip_gpio_set;  in idt821034_gpio_init()
1116 	idt821034->gpio_chip.can_sleep = true;  in idt821034_gpio_init()
1118 	return devm_gpiochip_add_data(&idt821034->spi->dev, &idt821034->gpio_chip,  in idt821034_gpio_init()
1119 				      idt821034);  in idt821034_gpio_init()
1124 	struct idt821034 *idt821034;  in idt821034_spi_probe()  local
1132 	idt821034 = devm_kzalloc(&spi->dev, sizeof(*idt821034), GFP_KERNEL);  in idt821034_spi_probe()
1133 	if (!idt821034)  in idt821034_spi_probe()
1136 	idt821034->spi = spi;  in idt821034_spi_probe()
1138 	mutex_init(&idt821034->mutex);  in idt821034_spi_probe()
1140 	spi_set_drvdata(spi, idt821034);  in idt821034_spi_probe()
1148 		return idt821034_gpio_init(idt821034);  in idt821034_spi_probe()
1154 	{ .compatible = "renesas,idt821034", },
1160 	{ "idt821034", 0 },
1167 		.name   = "idt821034",
1177 MODULE_DESCRIPTION("IDT821034 ALSA SoC driver");