1 // SPDX-License-Identifier: GPL-2.0-only
2 // SPDX-FileCopyrightText: Copyright (c) 2021-2025 NVIDIA CORPORATION & AFFILIATES.
5 // tegra210_amx.c - Tegra210 AMX driver
24  * The counter is in terms of AHUB clock cycles. If a frame is not
27  * function of sample rate (8 kHz) and AHUB clock (49.152 MHz).
65 	regmap_write(amx->regmap, TEGRA210_AMX_CFG_RAM_CTRL + amx->soc_data->reg_offset,  in tegra210_amx_write_map_ram()
70 	for (i = 0; i < amx->soc_data->ram_depth; i++)  in tegra210_amx_write_map_ram()
71 		regmap_write(amx->regmap, TEGRA210_AMX_CFG_RAM_DATA + amx->soc_data->reg_offset,  in tegra210_amx_write_map_ram()
72 			     amx->map[i]);  in tegra210_amx_write_map_ram()
74 	for (i = 0; i < amx->soc_data->byte_mask_size; i++)  in tegra210_amx_write_map_ram()
75 		regmap_write(amx->regmap,  in tegra210_amx_write_map_ram()
77 			     amx->byte_mask[i]);  in tegra210_amx_write_map_ram()
88 	err = regmap_read_poll_timeout(amx->regmap, TEGRA210_AMX_STATUS, val,  in tegra210_amx_startup()
91 		dev_err(dai->dev, "failed to stop AMX, err = %d\n", err);  in tegra210_amx_startup()
101 	regmap_update_bits(amx->regmap, TEGRA210_AMX_SOFT_RESET,  in tegra210_amx_startup()
105 	err = regmap_read_poll_timeout(amx->regmap, TEGRA210_AMX_SOFT_RESET,  in tegra210_amx_startup()
108 		dev_err(dai->dev, "failed to reset AMX, err = %d\n", err);  in tegra210_amx_startup()
119 	regcache_cache_only(amx->regmap, true);  in tegra210_amx_runtime_suspend()
120 	regcache_mark_dirty(amx->regmap);  in tegra210_amx_runtime_suspend()
129 	regcache_cache_only(amx->regmap, false);  in tegra210_amx_runtime_resume()
130 	regcache_sync(amx->regmap);  in tegra210_amx_runtime_resume()
132 	regmap_update_bits(amx->regmap,  in tegra210_amx_runtime_resume()
166 		return -EINVAL;  in tegra210_amx_set_audio_cif()
174 	if (amx->soc_data->max_ch == TEGRA264_AMX_MAX_CHANNEL)  in tegra210_amx_set_audio_cif()
175 		tegra264_set_cif(amx->regmap, reg, &cif_conf);  in tegra210_amx_set_audio_cif()
177 		tegra_set_cif(amx->regmap, reg, &cif_conf);  in tegra210_amx_set_audio_cif()
188 	if (amx->soc_data->auto_disable) {  in tegra210_amx_in_hw_params()
189 		regmap_write(amx->regmap,  in tegra210_amx_in_hw_params()
190 			     AMX_CH_REG(dai->id, TEGRA194_AMX_RX1_FRAME_PERIOD +  in tegra210_amx_in_hw_params()
191 				amx->soc_data->reg_offset),  in tegra210_amx_in_hw_params()
193 		regmap_write(amx->regmap, TEGRA210_AMX_CYA + amx->soc_data->reg_offset, 1);  in tegra210_amx_in_hw_params()
197 			AMX_CH_REG(dai->id, TEGRA210_AMX_RX1_CIF_CTRL));  in tegra210_amx_in_hw_params()
213 		(struct soc_mixer_control *)kcontrol->private_value;  in tegra210_amx_get_byte_map()
215 	unsigned char *bytes_map = (unsigned char *)amx->map;  in tegra210_amx_get_byte_map()
216 	int reg = mc->reg;  in tegra210_amx_get_byte_map()
219 	enabled = amx->byte_mask[reg / 32] & (1 << (reg % 32));  in tegra210_amx_get_byte_map()
232 		ucontrol->value.integer.value[0] = bytes_map[reg];  in tegra210_amx_get_byte_map()
234 		ucontrol->value.integer.value[0] = 256;  in tegra210_amx_get_byte_map()
243 		(struct soc_mixer_control *)kcontrol->private_value;  in tegra210_amx_put_byte_map()
246 	unsigned char *bytes_map = (unsigned char *)amx->map;  in tegra210_amx_put_byte_map()
247 	int reg = mc->reg;  in tegra210_amx_put_byte_map()
248 	int value = ucontrol->value.integer.value[0];  in tegra210_amx_put_byte_map()
249 	unsigned int mask_val = amx->byte_mask[reg / 32];  in tegra210_amx_put_byte_map()
256 	if (mask_val == amx->byte_mask[reg / 32])  in tegra210_amx_put_byte_map()
261 	amx->byte_mask[reg / 32] = mask_val;  in tegra210_amx_put_byte_map()
277 		.name = "AMX-RX-CIF" #id,			\
279 			.stream_name = "RX" #id "-CIF-Playback",\
289 			.stream_name = "RX" #id "-CIF-Capture",	\
303 		.name = "AMX-TX-CIF",				\
305 			.stream_name = "TX-CIF-Playback",	\
315 			.stream_name = "TX-CIF-Capture",	\
345 	{ "RX" #id " XBAR-" sname,	NULL,	"RX" #id " XBAR-TX" },	  \
346 	{ "RX" #id "-CIF-" sname,	NULL,	"RX" #id " XBAR-" sname },\
347 	{ "RX" #id,			NULL,	"RX" #id "-CIF-" sname }, \
349 	{ "TX-CIF-" sname,		NULL,	"TX" },			  \
350 	{ "XBAR-" sname,		NULL,	"TX-CIF-" sname },	  \
351 	{ "XBAR-RX",			NULL,	"XBAR-" sname }
508 	if (amx->soc_data->num_controls) {  in tegra210_amx_component_probe()
509 		err = snd_soc_add_component_controls(component, amx->soc_data->controls,  in tegra210_amx_component_probe()
510 						     amx->soc_data->num_controls);  in tegra210_amx_component_probe()
512 			dev_err(component->dev, "can't add AMX controls, err: %d\n", err);  in tegra210_amx_component_probe()
715 	{ .compatible = "nvidia,tegra210-amx", .data = &soc_data_tegra210 },
716 	{ .compatible = "nvidia,tegra194-amx", .data = &soc_data_tegra194 },
717 	{ .compatible = "nvidia,tegra264-amx", .data = &soc_data_tegra264 },
724 	struct device *dev = &pdev->dev;  in tegra210_amx_platform_probe()
731 		return -ENOMEM;  in tegra210_amx_platform_probe()
733 	amx->soc_data = device_get_match_data(dev);  in tegra210_amx_platform_probe()
741 	amx->regmap = devm_regmap_init_mmio(dev, regs,  in tegra210_amx_platform_probe()
742 					    amx->soc_data->regmap_conf);  in tegra210_amx_platform_probe()
743 	if (IS_ERR(amx->regmap)) {  in tegra210_amx_platform_probe()
745 		return PTR_ERR(amx->regmap);  in tegra210_amx_platform_probe()
748 	regcache_cache_only(amx->regmap, true);  in tegra210_amx_platform_probe()
750 	amx->map = devm_kzalloc(dev, amx->soc_data->ram_depth * sizeof(*amx->map),  in tegra210_amx_platform_probe()
752 	if (!amx->map)  in tegra210_amx_platform_probe()
753 		return -ENOMEM;  in tegra210_amx_platform_probe()
755 	amx->byte_mask = devm_kzalloc(dev,  in tegra210_amx_platform_probe()
756 				      amx->soc_data->byte_mask_size * sizeof(*amx->byte_mask),  in tegra210_amx_platform_probe()
758 	if (!amx->byte_mask)  in tegra210_amx_platform_probe()
759 		return -ENOMEM;  in tegra210_amx_platform_probe()
762 			amx->soc_data->max_ch;  in tegra210_amx_platform_probe()
779 	pm_runtime_disable(&pdev->dev);  in tegra210_amx_platform_remove()
790 		.name = "tegra210-amx",
800 MODULE_DESCRIPTION("Tegra210 AMX ASoC driver");