diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.19/950-0075-Add-support-for-Allo-Piano-DAC-2.1-plus-add-on-board.patch')
-rw-r--r-- | target/linux/brcm2708/patches-4.19/950-0075-Add-support-for-Allo-Piano-DAC-2.1-plus-add-on-board.patch | 1057 |
1 files changed, 0 insertions, 1057 deletions
diff --git a/target/linux/brcm2708/patches-4.19/950-0075-Add-support-for-Allo-Piano-DAC-2.1-plus-add-on-board.patch b/target/linux/brcm2708/patches-4.19/950-0075-Add-support-for-Allo-Piano-DAC-2.1-plus-add-on-board.patch deleted file mode 100644 index 0c7e218fc3..0000000000 --- a/target/linux/brcm2708/patches-4.19/950-0075-Add-support-for-Allo-Piano-DAC-2.1-plus-add-on-board.patch +++ /dev/null @@ -1,1057 +0,0 @@ -From 7603d4cf7fb47afc19641b518250ee52852470f6 Mon Sep 17 00:00:00 2001 -From: Raashid Muhammed <raashidmuhammed@zilogic.com> -Date: Mon, 27 Mar 2017 12:35:00 +0530 -Subject: [PATCH] Add support for Allo Piano DAC 2.1 plus add-on board - for Raspberry Pi. - -The Piano DAC 2.1 has support for 4 channels with subwoofer. - -Signed-off-by: Baswaraj K <jaikumar@cem-solutions.net> -Reviewed-by: Vijay Kumar B. <vijaykumar@zilogic.com> -Reviewed-by: Raashid Muhammed <raashidmuhammed@zilogic.com> - -Add clock changes and mute gpios (#1938) - -Also improve code style and adhere to ALSA coding conventions. - -Signed-off-by: Baswaraj K <jaikumar@cem-solutions.net> -Reviewed-by: Vijay Kumar B. <vijaykumar@zilogic.com> -Reviewed-by: Raashid Muhammed <raashidmuhammed@zilogic.com> - -PianoPlus: Dual Mono & Dual Stereo features added (#2069) - -allo-piano-dac-plus: Master volume added + fixes - -Master volume added, which controls both DACs volumes. - -See: https://github.com/raspberrypi/linux/pull/2149 - -Also fix initial max volume, default mode value, and unmute. - -Signed-off-by: allocom <sparky-dev@allo.com> - -ASoC: allo-piano-dac-plus: fix S24_LE format - -Remove set_bclk_ratio call so 24-bit data is transmitted in -24 bclk cycles. - -Signed-off-by: Matthias Reichl <hias@horus.com> ---- - sound/soc/bcm/allo-piano-dac-plus.c | 1011 +++++++++++++++++++++++++++ - 1 file changed, 1011 insertions(+) - create mode 100644 sound/soc/bcm/allo-piano-dac-plus.c - ---- /dev/null -+++ b/sound/soc/bcm/allo-piano-dac-plus.c -@@ -0,0 +1,1011 @@ -+/* -+ * ALSA ASoC Machine Driver for Allo Piano DAC Plus Subwoofer -+ * -+ * Author: Baswaraj K <jaikumar@cem-solutions.net> -+ * Copyright 2016 -+ * based on code by Daniel Matuschek <info@crazy-audio.com> -+ * based on code by Florian Meier <florian.meier@koalo.de> -+ * -+ * This program is free software; you can redistribute it and/or -+ * modify it under the terms of the GNU General Public License -+ * version 2 as published by the Free Software Foundation. -+ * -+ * This program is distributed in the hope that it will be useful, but -+ * WITHOUT ANY WARRANTY; without even the implied warranty of -+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -+ * General Public License for more details. -+ */ -+ -+#include <linux/module.h> -+#include <linux/platform_device.h> -+#include <linux/gpio/consumer.h> -+#include <sound/core.h> -+#include <sound/pcm.h> -+#include <sound/pcm_params.h> -+#include <sound/soc.h> -+#include <linux/firmware.h> -+#include <linux/delay.h> -+#include <sound/tlv.h> -+#include "../codecs/pcm512x.h" -+ -+#define P_DAC_LEFT_MUTE 0x10 -+#define P_DAC_RIGHT_MUTE 0x01 -+#define P_DAC_MUTE 0x11 -+#define P_DAC_UNMUTE 0x00 -+#define P_MUTE 1 -+#define P_UNMUTE 0 -+ -+struct dsp_code { -+ char i2c_addr; -+ char offset; -+ char val; -+}; -+ -+struct glb_pool { -+ struct mutex lock; -+ unsigned int dual_mode; -+ unsigned int set_lowpass; -+ unsigned int set_mode; -+ unsigned int set_rate; -+ unsigned int dsp_page_number; -+}; -+ -+static bool digital_gain_0db_limit = true; -+bool glb_mclk; -+ -+static struct gpio_desc *mute_gpio[2]; -+ -+static const char * const allo_piano_mode_texts[] = { -+ "None", -+ "2.0", -+ "2.1", -+ "2.2", -+}; -+ -+static const SOC_ENUM_SINGLE_DECL(allo_piano_mode_enum, -+ 0, 0, allo_piano_mode_texts); -+ -+static const char * const allo_piano_dual_mode_texts[] = { -+ "None", -+ "Dual-Mono", -+ "Dual-Stereo", -+}; -+ -+static const SOC_ENUM_SINGLE_DECL(allo_piano_dual_mode_enum, -+ 0, 0, allo_piano_dual_mode_texts); -+ -+static const char * const allo_piano_dsp_low_pass_texts[] = { -+ "60", -+ "70", -+ "80", -+ "90", -+ "100", -+ "110", -+ "120", -+ "130", -+ "140", -+ "150", -+ "160", -+ "170", -+ "180", -+ "190", -+ "200", -+}; -+ -+static const SOC_ENUM_SINGLE_DECL(allo_piano_enum, -+ 0, 0, allo_piano_dsp_low_pass_texts); -+ -+static int __snd_allo_piano_dsp_program(struct snd_soc_pcm_runtime *rtd, -+ unsigned int mode, unsigned int rate, unsigned int lowpass) -+{ -+ const struct firmware *fw; -+ struct snd_soc_card *card = rtd->card; -+ struct glb_pool *glb_ptr = card->drvdata; -+ char firmware_name[60]; -+ int ret = 0, dac = 0; -+ -+ if (rate <= 46000) -+ rate = 44100; -+ else if (rate <= 68000) -+ rate = 48000; -+ else if (rate <= 92000) -+ rate = 88200; -+ else if (rate <= 136000) -+ rate = 96000; -+ else if (rate <= 184000) -+ rate = 176400; -+ else -+ rate = 192000; -+ -+ if (lowpass > 14) -+ glb_ptr->set_lowpass = lowpass = 0; -+ -+ if (mode > 3) -+ glb_ptr->set_mode = mode = 0; -+ -+ if (mode > 0) -+ glb_ptr->dual_mode = 0; -+ -+ /* same configuration loaded */ -+ if ((rate == glb_ptr->set_rate) && (lowpass == glb_ptr->set_lowpass) -+ && (mode == glb_ptr->set_mode)) -+ return 0; -+ -+ switch (mode) { -+ case 0: /* None */ -+ return 1; -+ -+ case 1: /* 2.0 */ -+ snd_soc_component_write(rtd->codec_dais[0]->component, -+ PCM512x_MUTE, P_DAC_UNMUTE); -+ snd_soc_component_write(rtd->codec_dais[1]->component, -+ PCM512x_MUTE, P_DAC_MUTE); -+ glb_ptr->set_rate = rate; -+ glb_ptr->set_mode = mode; -+ glb_ptr->set_lowpass = lowpass; -+ return 1; -+ -+ default: -+ snd_soc_component_write(rtd->codec_dais[0]->component, -+ PCM512x_MUTE, P_DAC_UNMUTE); -+ snd_soc_component_write(rtd->codec_dais[1]->component, -+ PCM512x_MUTE, P_DAC_UNMUTE); -+ } -+ -+ for (dac = 0; dac < rtd->num_codecs; dac++) { -+ struct dsp_code *dsp_code_read; -+ int i = 1; -+ -+ if (dac == 0) { /* high */ -+ snprintf(firmware_name, sizeof(firmware_name), -+ "allo/piano/2.2/allo-piano-dsp-%d-%d-%d.bin", -+ rate, ((lowpass * 10) + 60), dac); -+ } else { /* low */ -+ snprintf(firmware_name, sizeof(firmware_name), -+ "allo/piano/2.%d/allo-piano-dsp-%d-%d-%d.bin", -+ (mode - 1), rate, ((lowpass * 10) + 60), dac); -+ } -+ -+ dev_info(rtd->card->dev, "Dsp Firmware File Name: %s\n", -+ firmware_name); -+ -+ ret = request_firmware(&fw, firmware_name, rtd->card->dev); -+ if (ret < 0) { -+ dev_err(rtd->card->dev, -+ "Error: Allo Piano Firmware %s missing. %d\n", -+ firmware_name, ret); -+ goto err; -+ } -+ -+ while (i < (fw->size - 1)) { -+ dsp_code_read = (struct dsp_code *)&fw->data[i]; -+ -+ if (dsp_code_read->offset == 0) { -+ glb_ptr->dsp_page_number = dsp_code_read->val; -+ ret = snd_soc_component_write(rtd->codec_dais[dac]->component, -+ PCM512x_PAGE_BASE(0), -+ dsp_code_read->val); -+ -+ } else if (dsp_code_read->offset != 0) { -+ ret = snd_soc_component_write(rtd->codec_dais[dac]->component, -+ (PCM512x_PAGE_BASE( -+ glb_ptr->dsp_page_number) + -+ dsp_code_read->offset), -+ dsp_code_read->val); -+ } -+ if (ret < 0) { -+ dev_err(rtd->card->dev, -+ "Failed to write Register: %d\n", ret); -+ release_firmware(fw); -+ goto err; -+ } -+ i = i + 3; -+ } -+ release_firmware(fw); -+ } -+ glb_ptr->set_rate = rate; -+ glb_ptr->set_mode = mode; -+ glb_ptr->set_lowpass = lowpass; -+ return 1; -+ -+err: -+ return ret; -+} -+ -+static int snd_allo_piano_dsp_program(struct snd_soc_pcm_runtime *rtd, -+ unsigned int mode, unsigned int rate, unsigned int lowpass) -+{ -+ struct snd_soc_card *card = rtd->card; -+ struct glb_pool *glb_ptr = card->drvdata; -+ int ret = 0; -+ -+ mutex_lock(&glb_ptr->lock); -+ -+ ret = __snd_allo_piano_dsp_program(rtd, mode, rate, lowpass); -+ -+ mutex_unlock(&glb_ptr->lock); -+ -+ return ret; -+} -+ -+static int snd_allo_piano_dual_mode_get(struct snd_kcontrol *kcontrol, -+ struct snd_ctl_elem_value *ucontrol) -+{ -+ struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); -+ struct glb_pool *glb_ptr = card->drvdata; -+ -+ ucontrol->value.integer.value[0] = glb_ptr->dual_mode; -+ -+ return 0; -+} -+ -+static int snd_allo_piano_dual_mode_put(struct snd_kcontrol *kcontrol, -+ struct snd_ctl_elem_value *ucontrol) -+{ -+ struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); -+ struct glb_pool *glb_ptr = card->drvdata; -+ struct snd_soc_pcm_runtime *rtd; -+ struct snd_card *snd_card_ptr = card->snd_card; -+ struct snd_kcontrol *kctl; -+ struct soc_mixer_control *mc; -+ unsigned int left_val = 0, right_val = 0; -+ -+ rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name); -+ -+ if (ucontrol->value.integer.value[0] > 0) { -+ glb_ptr->dual_mode = ucontrol->value.integer.value[0]; -+ glb_ptr->set_mode = 0; -+ } else { -+ if (glb_ptr->set_mode <= 0) { -+ glb_ptr->dual_mode = 1; -+ glb_ptr->set_mode = 0; -+ } else { -+ glb_ptr->dual_mode = 0; -+ return 0; -+ } -+ } -+ -+ if (glb_ptr->dual_mode == 1) { // Dual Mono -+ snd_soc_component_write(rtd->codec_dais[0]->component, -+ PCM512x_MUTE, P_DAC_RIGHT_MUTE); -+ snd_soc_component_write(rtd->codec_dais[1]->component, -+ PCM512x_MUTE, P_DAC_LEFT_MUTE); -+ snd_soc_component_write(rtd->codec_dais[0]->component, -+ PCM512x_DIGITAL_VOLUME_3, 0xff); -+ snd_soc_component_write(rtd->codec_dais[1]->component, -+ PCM512x_DIGITAL_VOLUME_2, 0xff); -+ -+ list_for_each_entry(kctl, &snd_card_ptr->controls, list) { -+ if (!strncmp(kctl->id.name, "Digital Playback Volume", -+ sizeof(kctl->id.name))) { -+ mc = (struct soc_mixer_control *) -+ kctl->private_value; -+ mc->rreg = mc->reg; -+ break; -+ } -+ } -+ } else { -+ snd_soc_component_read(rtd->codec_dais[0]->component, -+ PCM512x_DIGITAL_VOLUME_2, &left_val); -+ snd_soc_component_read(rtd->codec_dais[1]->component, -+ PCM512x_DIGITAL_VOLUME_3, &right_val); -+ -+ list_for_each_entry(kctl, &snd_card_ptr->controls, list) { -+ if (!strncmp(kctl->id.name, "Digital Playback Volume", -+ sizeof(kctl->id.name))) { -+ mc = (struct soc_mixer_control *) -+ kctl->private_value; -+ mc->rreg = PCM512x_DIGITAL_VOLUME_3; -+ break; -+ } -+ } -+ -+ snd_soc_component_write(rtd->codec_dais[0]->component, -+ PCM512x_DIGITAL_VOLUME_3, left_val); -+ snd_soc_component_write(rtd->codec_dais[1]->component, -+ PCM512x_DIGITAL_VOLUME_2, right_val); -+ snd_soc_component_write(rtd->codec_dais[0]->component, -+ PCM512x_MUTE, P_DAC_UNMUTE); -+ snd_soc_component_write(rtd->codec_dais[1]->component, -+ PCM512x_MUTE, P_DAC_UNMUTE); -+ } -+ -+ return 0; -+} -+ -+static int snd_allo_piano_mode_get(struct snd_kcontrol *kcontrol, -+ struct snd_ctl_elem_value *ucontrol) -+{ -+ struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); -+ struct glb_pool *glb_ptr = card->drvdata; -+ -+ ucontrol->value.integer.value[0] = glb_ptr->set_mode; -+ return 0; -+} -+ -+static int snd_allo_piano_mode_put(struct snd_kcontrol *kcontrol, -+ struct snd_ctl_elem_value *ucontrol) -+{ -+ struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); -+ struct snd_soc_pcm_runtime *rtd; -+ struct glb_pool *glb_ptr = card->drvdata; -+ struct snd_card *snd_card_ptr = card->snd_card; -+ struct snd_kcontrol *kctl; -+ struct soc_mixer_control *mc; -+ unsigned int left_val = 0, right_val = 0; -+ -+ rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name); -+ -+ if ((glb_ptr->dual_mode == 1) && -+ (ucontrol->value.integer.value[0] > 0)) { -+ snd_soc_component_read(rtd->codec_dais[0]->component, -+ PCM512x_DIGITAL_VOLUME_2, &left_val); -+ snd_soc_component_read(rtd->codec_dais[1]->component, -+ PCM512x_DIGITAL_VOLUME_2, &right_val); -+ -+ list_for_each_entry(kctl, &snd_card_ptr->controls, list) { -+ if (!strncmp(kctl->id.name, "Digital Playback Volume", -+ sizeof(kctl->id.name))) { -+ mc = (struct soc_mixer_control *) -+ kctl->private_value; -+ mc->rreg = PCM512x_DIGITAL_VOLUME_3; -+ break; -+ } -+ } -+ snd_soc_component_write(rtd->codec_dais[0]->component, -+ PCM512x_DIGITAL_VOLUME_3, left_val); -+ snd_soc_component_write(rtd->codec_dais[1]->component, -+ PCM512x_DIGITAL_VOLUME_3, right_val); -+ } -+ -+ return(snd_allo_piano_dsp_program(rtd, -+ ucontrol->value.integer.value[0], -+ glb_ptr->set_rate, glb_ptr->set_lowpass)); -+} -+ -+static int snd_allo_piano_lowpass_get(struct snd_kcontrol *kcontrol, -+ struct snd_ctl_elem_value *ucontrol) -+{ -+ struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); -+ struct glb_pool *glb_ptr = card->drvdata; -+ -+ ucontrol->value.integer.value[0] = glb_ptr->set_lowpass; -+ return 0; -+} -+ -+static int snd_allo_piano_lowpass_put(struct snd_kcontrol *kcontrol, -+ struct snd_ctl_elem_value *ucontrol) -+{ -+ struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); -+ struct snd_soc_pcm_runtime *rtd; -+ struct glb_pool *glb_ptr = card->drvdata; -+ -+ rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name); -+ return(snd_allo_piano_dsp_program(rtd, -+ glb_ptr->set_mode, glb_ptr->set_rate, -+ ucontrol->value.integer.value[0])); -+} -+ -+static int pcm512x_get_reg_sub(struct snd_kcontrol *kcontrol, -+ struct snd_ctl_elem_value *ucontrol) -+{ -+ struct soc_mixer_control *mc = -+ (struct soc_mixer_control *)kcontrol->private_value; -+ struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); -+ struct glb_pool *glb_ptr = card->drvdata; -+ struct snd_soc_pcm_runtime *rtd; -+ unsigned int left_val = 0; -+ unsigned int right_val = 0; -+ int ret; -+ rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name); -+ ret = snd_soc_component_read(rtd->codec_dais[1]->component, -+ PCM512x_DIGITAL_VOLUME_3, &right_val); -+ if (ret < 0) -+ return ret; -+ -+ if (glb_ptr->dual_mode != 1) { -+ ret = snd_soc_component_read(rtd->codec_dais[1]->component, -+ PCM512x_DIGITAL_VOLUME_2, &left_val); -+ if ( ret < 0) -+ return ret; -+ -+ } else { -+ left_val = right_val; -+ } -+ -+ ucontrol->value.integer.value[0] = -+ (~(left_val >> mc->shift)) & mc->max; -+ ucontrol->value.integer.value[1] = -+ (~(right_val >> mc->shift)) & mc->max; -+ -+ return 0; -+} -+ -+static int pcm512x_set_reg_sub(struct snd_kcontrol *kcontrol, -+ struct snd_ctl_elem_value *ucontrol) -+{ -+ struct soc_mixer_control *mc = -+ (struct soc_mixer_control *)kcontrol->private_value; -+ struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); -+ struct glb_pool *glb_ptr = card->drvdata; -+ struct snd_soc_pcm_runtime *rtd; -+ unsigned int left_val = (ucontrol->value.integer.value[0] & mc->max); -+ unsigned int right_val = (ucontrol->value.integer.value[1] & mc->max); -+ int ret = 0; -+ -+ rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name); -+ if (glb_ptr->dual_mode != 1) { -+ ret = snd_soc_component_write(rtd->codec_dais[1]->component, -+ PCM512x_DIGITAL_VOLUME_2, (~left_val)); -+ if (ret < 0) -+ return ret; -+ } -+ -+ if (digital_gain_0db_limit) { -+ ret = snd_soc_limit_volume(card, "Subwoofer Playback Volume", -+ 207); -+ if (ret < 0) -+ dev_warn(card->dev, "Failed to set volume limit: %d\n", -+ ret); -+ } -+ -+ ret = snd_soc_component_write(rtd->codec_dais[1]->component, -+ PCM512x_DIGITAL_VOLUME_3, (~right_val)); -+ if (ret < 0) -+ return ret; -+ -+ return 1; -+} -+ -+static int pcm512x_get_reg_sub_switch(struct snd_kcontrol *kcontrol, -+ struct snd_ctl_elem_value *ucontrol) -+{ -+ struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); -+ struct snd_soc_pcm_runtime *rtd; -+ int val = 0; -+ int ret; -+ -+ rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name); -+ ret = snd_soc_component_read(rtd->codec_dais[1]->component, PCM512x_MUTE, &val); -+ if (ret < 0) -+ return ret; -+ -+ ucontrol->value.integer.value[0] = -+ (val & P_DAC_LEFT_MUTE) ? P_UNMUTE : P_MUTE; -+ ucontrol->value.integer.value[1] = -+ (val & P_DAC_RIGHT_MUTE) ? P_UNMUTE : P_MUTE; -+ -+ return val; -+} -+ -+static int pcm512x_set_reg_sub_switch(struct snd_kcontrol *kcontrol, -+ struct snd_ctl_elem_value *ucontrol) -+{ -+ struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); -+ struct snd_soc_pcm_runtime *rtd; -+ struct glb_pool *glb_ptr = card->drvdata; -+ unsigned int left_val = (ucontrol->value.integer.value[0]); -+ unsigned int right_val = (ucontrol->value.integer.value[1]); -+ int ret = 0; -+ -+ rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name); -+ if (glb_ptr->set_mode != 1) { -+ ret = snd_soc_component_write(rtd->codec_dais[1]->component, PCM512x_MUTE, -+ ~((left_val & 0x01)<<4 | (right_val & 0x01))); -+ if (ret < 0) -+ return ret; -+ } -+ return 1; -+ -+} -+ -+static int pcm512x_get_reg_master(struct snd_kcontrol *kcontrol, -+ struct snd_ctl_elem_value *ucontrol) -+{ -+ struct soc_mixer_control *mc = -+ (struct soc_mixer_control *)kcontrol->private_value; -+ struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); -+ struct glb_pool *glb_ptr = card->drvdata; -+ struct snd_soc_pcm_runtime *rtd; -+ unsigned int left_val = 0, right_val = 0; -+ int ret; -+ -+ rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name); -+ -+ ret = snd_soc_component_read(rtd->codec_dais[0]->component, -+ PCM512x_DIGITAL_VOLUME_2, &left_val); -+ if ( ret < 0) -+ return ret; -+ -+ if (glb_ptr->dual_mode == 1) { -+ ret = snd_soc_component_read(rtd->codec_dais[1]->component, -+ PCM512x_DIGITAL_VOLUME_3, &right_val); -+ if (ret < 0) -+ return ret; -+ } else { -+ ret = snd_soc_component_read(rtd->codec_dais[0]->component, -+ PCM512x_DIGITAL_VOLUME_3, &right_val); -+ if (ret < 0) -+ return ret; -+ } -+ -+ ucontrol->value.integer.value[0] = -+ (~(left_val >> mc->shift)) & mc->max; -+ ucontrol->value.integer.value[1] = -+ (~(right_val >> mc->shift)) & mc->max; -+ -+ return 0; -+} -+ -+static int pcm512x_set_reg_master(struct snd_kcontrol *kcontrol, -+ struct snd_ctl_elem_value *ucontrol) -+{ -+ struct soc_mixer_control *mc = -+ (struct soc_mixer_control *)kcontrol->private_value; -+ struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); -+ struct glb_pool *glb_ptr = card->drvdata; -+ struct snd_soc_pcm_runtime *rtd; -+ unsigned int left_val = (ucontrol->value.integer.value[0] & mc->max); -+ unsigned int right_val = (ucontrol->value.integer.value[1] & mc->max); -+ int ret = 0; -+ -+ rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name); -+ -+ if (digital_gain_0db_limit) { -+ ret = snd_soc_limit_volume(card, "Master Playback Volume", -+ 207); -+ if (ret < 0) -+ dev_warn(card->dev, "Failed to set volume limit: %d\n", -+ ret); -+ } -+ -+ if (glb_ptr->dual_mode != 1) { -+ ret = snd_soc_component_write(rtd->codec_dais[1]->component, -+ PCM512x_DIGITAL_VOLUME_2, (~left_val)); -+ if (ret < 0) -+ return ret; -+ -+ ret = snd_soc_component_write(rtd->codec_dais[0]->component, -+ PCM512x_DIGITAL_VOLUME_3, (~right_val)); -+ if (ret < 0) -+ return ret; -+ -+ } -+ -+ ret = snd_soc_component_write(rtd->codec_dais[1]->component, -+ PCM512x_DIGITAL_VOLUME_3, (~right_val)); -+ if (ret < 0) -+ return ret; -+ -+ ret = snd_soc_component_write(rtd->codec_dais[0]->component, -+ PCM512x_DIGITAL_VOLUME_2, (~left_val)); -+ if (ret < 0) -+ return ret; -+ return 1; -+} -+ -+static int pcm512x_get_reg_master_switch(struct snd_kcontrol *kcontrol, -+ struct snd_ctl_elem_value *ucontrol) -+{ -+ struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); -+ struct glb_pool *glb_ptr = card->drvdata; -+ struct snd_soc_pcm_runtime *rtd; -+ int val = 0; -+ int ret; -+ -+ rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name); -+ -+ ret = snd_soc_component_read(rtd->codec_dais[0]->component, PCM512x_MUTE, &val); -+ if (ret < 0) -+ return ret; -+ -+ ucontrol->value.integer.value[0] = -+ (val & P_DAC_LEFT_MUTE) ? P_UNMUTE : P_MUTE; -+ -+ if (glb_ptr->dual_mode == 1) { -+ ret = snd_soc_component_read(rtd->codec_dais[1]->component, PCM512x_MUTE, &val); -+ if (ret < 0) -+ return ret; -+ } -+ ucontrol->value.integer.value[1] = -+ (val & P_DAC_RIGHT_MUTE) ? P_UNMUTE : P_MUTE; -+ -+ return val; -+} -+ -+static int pcm512x_set_reg_master_switch(struct snd_kcontrol *kcontrol, -+ struct snd_ctl_elem_value *ucontrol) -+{ -+ struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); -+ struct snd_soc_pcm_runtime *rtd; -+ struct glb_pool *glb_ptr = card->drvdata; -+ unsigned int left_val = (ucontrol->value.integer.value[0]); -+ unsigned int right_val = (ucontrol->value.integer.value[1]); -+ int ret = 0; -+ -+ rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name); -+ if (glb_ptr->dual_mode == 1) { -+ ret = snd_soc_component_write(rtd->codec_dais[0]->component, PCM512x_MUTE, -+ ~((left_val & 0x01)<<4)); -+ if (ret < 0) -+ return ret; -+ ret = snd_soc_component_write(rtd->codec_dais[1]->component, PCM512x_MUTE, -+ ~((right_val & 0x01))); -+ if (ret < 0) -+ return ret; -+ -+ } else if (glb_ptr->set_mode == 1) { -+ ret = snd_soc_component_write(rtd->codec_dais[0]->component, PCM512x_MUTE, -+ ~((left_val & 0x01)<<4 | (right_val & 0x01))); -+ if (ret < 0) -+ return ret; -+ -+ } else { -+ ret = snd_soc_component_write(rtd->codec_dais[0]->component, PCM512x_MUTE, -+ ~((left_val & 0x01)<<4 | (right_val & 0x01))); -+ if (ret < 0) -+ return ret; -+ -+ ret = snd_soc_component_write(rtd->codec_dais[1]->component, PCM512x_MUTE, -+ ~((left_val & 0x01)<<4 | (right_val & 0x01))); -+ if (ret < 0) -+ return ret; -+ } -+ return 1; -+} -+ -+static const DECLARE_TLV_DB_SCALE(digital_tlv_sub, -10350, 50, 1); -+static const DECLARE_TLV_DB_SCALE(digital_tlv_master, -10350, 50, 1); -+ -+static const struct snd_kcontrol_new allo_piano_controls[] = { -+ SOC_ENUM_EXT("Subwoofer mode Route", -+ allo_piano_mode_enum, -+ snd_allo_piano_mode_get, -+ snd_allo_piano_mode_put), -+ -+ SOC_ENUM_EXT("Dual Mode Route", -+ allo_piano_dual_mode_enum, -+ snd_allo_piano_dual_mode_get, -+ snd_allo_piano_dual_mode_put), -+ -+ SOC_ENUM_EXT("Lowpass Route", allo_piano_enum, -+ snd_allo_piano_lowpass_get, -+ snd_allo_piano_lowpass_put), -+ -+ SOC_DOUBLE_R_EXT_TLV("Subwoofer Playback Volume", -+ PCM512x_DIGITAL_VOLUME_2, -+ PCM512x_DIGITAL_VOLUME_3, 0, 255, 1, -+ pcm512x_get_reg_sub, -+ pcm512x_set_reg_sub, -+ digital_tlv_sub), -+ -+ SOC_DOUBLE_EXT("Subwoofer Playback Switch", -+ PCM512x_MUTE, -+ PCM512x_RQML_SHIFT, -+ PCM512x_RQMR_SHIFT, 1, 1, -+ pcm512x_get_reg_sub_switch, -+ pcm512x_set_reg_sub_switch), -+ -+ SOC_DOUBLE_R_EXT_TLV("Master Playback Volume", -+ PCM512x_DIGITAL_VOLUME_2, -+ PCM512x_DIGITAL_VOLUME_3, 0, 255, 1, -+ pcm512x_get_reg_master, -+ pcm512x_set_reg_master, -+ digital_tlv_master), -+ -+ SOC_DOUBLE_EXT("Master Playback Switch", -+ PCM512x_MUTE, -+ PCM512x_RQML_SHIFT, -+ PCM512x_RQMR_SHIFT, 1, 1, -+ pcm512x_get_reg_master_switch, -+ pcm512x_set_reg_master_switch), -+}; -+ -+static int snd_allo_piano_dac_init(struct snd_soc_pcm_runtime *rtd) -+{ -+ struct snd_soc_card *card = rtd->card; -+ struct glb_pool *glb_ptr; -+ -+ glb_ptr = kmalloc(sizeof(struct glb_pool), GFP_KERNEL); -+ if (!glb_ptr) -+ return -ENOMEM; -+ -+ memset(glb_ptr, 0x00, sizeof(glb_ptr)); -+ card->drvdata = glb_ptr; -+ glb_ptr->dual_mode = 2; -+ glb_ptr->set_mode = 0; -+ -+ mutex_init(&glb_ptr->lock); -+ -+ if (digital_gain_0db_limit) { -+ int ret; -+ -+ ret = snd_soc_limit_volume(card, "Digital Playback Volume", -+ 207); -+ if (ret < 0) -+ dev_warn(card->dev, "Failed to set volume limit: %d\n", -+ ret); -+ } -+ return 0; -+} -+ -+static void snd_allo_piano_gpio_mute(struct snd_soc_card *card) -+{ -+ if (mute_gpio[0]) -+ gpiod_set_value_cansleep(mute_gpio[0], P_MUTE); -+ -+ if (mute_gpio[1]) -+ gpiod_set_value_cansleep(mute_gpio[1], P_MUTE); -+} -+ -+static void snd_allo_piano_gpio_unmute(struct snd_soc_card *card) -+{ -+ if (mute_gpio[0]) -+ gpiod_set_value_cansleep(mute_gpio[0], P_UNMUTE); -+ -+ if (mute_gpio[1]) -+ gpiod_set_value_cansleep(mute_gpio[1], P_UNMUTE); -+} -+ -+static int snd_allo_piano_set_bias_level(struct snd_soc_card *card, -+ struct snd_soc_dapm_context *dapm, enum snd_soc_bias_level level) -+{ -+ struct snd_soc_pcm_runtime *rtd; -+ struct snd_soc_dai *codec_dai; -+ -+ rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name); -+ codec_dai = rtd->codec_dai; -+ -+ if (dapm->dev != codec_dai->dev) -+ return 0; -+ -+ switch (level) { -+ case SND_SOC_BIAS_PREPARE: -+ if (dapm->bias_level != SND_SOC_BIAS_STANDBY) -+ break; -+ /* UNMUTE DAC */ -+ snd_allo_piano_gpio_unmute(card); -+ break; -+ -+ case SND_SOC_BIAS_STANDBY: -+ if (dapm->bias_level != SND_SOC_BIAS_PREPARE) -+ break; -+ /* MUTE DAC */ -+ snd_allo_piano_gpio_mute(card); -+ break; -+ -+ default: -+ break; -+ } -+ -+ return 0; -+} -+ -+static int snd_allo_piano_dac_startup( -+ struct snd_pcm_substream *substream) -+{ -+ struct snd_soc_pcm_runtime *rtd = substream->private_data; -+ struct snd_soc_card *card = rtd->card; -+ -+ snd_allo_piano_gpio_mute(card); -+ -+ return 0; -+} -+ -+static int snd_allo_piano_dac_hw_params( -+ struct snd_pcm_substream *substream, -+ struct snd_pcm_hw_params *params) -+{ -+ struct snd_soc_pcm_runtime *rtd = substream->private_data; -+ unsigned int rate = params_rate(params); -+ struct snd_soc_card *card = rtd->card; -+ struct glb_pool *glb_ptr = card->drvdata; -+ int ret = 0, val = 0, dac; -+ -+ for (dac = 0; (glb_mclk && dac < 2); dac++) { -+ /* Configure the PLL clock reference for both the Codecs */ -+ ret = snd_soc_component_read(rtd->codec_dais[dac]->component, -+ PCM512x_RATE_DET_4, &val); -+ if (ret < 0) { -+ dev_err(rtd->codec_dais[dac]->component->dev, -+ "Failed to read register PCM512x_RATE_DET_4\n"); -+ return ret; -+ } -+ -+ if (val & 0x40) { -+ snd_soc_component_write(rtd->codec_dais[dac]->component, -+ PCM512x_PLL_REF, -+ PCM512x_SREF_BCK); -+ -+ dev_info(rtd->codec_dais[dac]->component->dev, -+ "Setting BCLK as input clock & Enable PLL\n"); -+ } else { -+ snd_soc_component_write(rtd->codec_dais[dac]->component, -+ PCM512x_PLL_EN, -+ 0x00); -+ -+ snd_soc_component_write(rtd->codec_dais[dac]->component, -+ PCM512x_PLL_REF, -+ PCM512x_SREF_SCK); -+ -+ dev_info(rtd->codec_dais[dac]->component->dev, -+ "Setting SCLK as input clock & disabled PLL\n"); -+ } -+ } -+ -+ ret = snd_allo_piano_dsp_program(rtd, glb_ptr->set_mode, rate, -+ glb_ptr->set_lowpass); -+ if (ret < 0) -+ return ret; -+ -+ return ret; -+} -+ -+static int snd_allo_piano_dac_prepare( -+ struct snd_pcm_substream *substream) -+{ -+ struct snd_soc_pcm_runtime *rtd = substream->private_data; -+ struct snd_soc_card *card = rtd->card; -+ -+ snd_allo_piano_gpio_unmute(card); -+ -+ return 0; -+} -+ -+/* machine stream operations */ -+static struct snd_soc_ops snd_allo_piano_dac_ops = { -+ .startup = snd_allo_piano_dac_startup, -+ .hw_params = snd_allo_piano_dac_hw_params, -+ .prepare = snd_allo_piano_dac_prepare, -+}; -+ -+static struct snd_soc_dai_link_component allo_piano_2_1_codecs[] = { -+ { -+ .dai_name = "pcm512x-hifi", -+ }, -+ { -+ .dai_name = "pcm512x-hifi", -+ }, -+}; -+ -+static struct snd_soc_dai_link snd_allo_piano_dac_dai[] = { -+ { -+ .name = "PianoDACPlus", -+ .stream_name = "PianoDACPlus", -+ .cpu_dai_name = "bcm2708-i2s.0", -+ .platform_name = "bcm2708-i2s.0", -+ .codecs = allo_piano_2_1_codecs, -+ .num_codecs = 2, -+ .dai_fmt = SND_SOC_DAIFMT_I2S | -+ SND_SOC_DAIFMT_NB_NF | -+ SND_SOC_DAIFMT_CBS_CFS, -+ .ops = &snd_allo_piano_dac_ops, -+ .init = snd_allo_piano_dac_init, -+ }, -+}; -+ -+/* audio machine driver */ -+static struct snd_soc_card snd_allo_piano_dac = { -+ .name = "PianoDACPlus", -+ .owner = THIS_MODULE, -+ .dai_link = snd_allo_piano_dac_dai, -+ .num_links = ARRAY_SIZE(snd_allo_piano_dac_dai), -+ .controls = allo_piano_controls, -+ .num_controls = ARRAY_SIZE(allo_piano_controls), -+}; -+ -+static int snd_allo_piano_dac_probe(struct platform_device *pdev) -+{ -+ struct snd_soc_card *card = &snd_allo_piano_dac; -+ int ret = 0, i = 0; -+ -+ card->dev = &pdev->dev; -+ platform_set_drvdata(pdev, &snd_allo_piano_dac); -+ -+ if (pdev->dev.of_node) { -+ struct device_node *i2s_node; -+ struct snd_soc_dai_link *dai; -+ -+ dai = &snd_allo_piano_dac_dai[0]; -+ i2s_node = of_parse_phandle(pdev->dev.of_node, -+ "i2s-controller", 0); -+ if (i2s_node) { -+ for (i = 0; i < card->num_links; i++) { -+ dai->cpu_dai_name = NULL; -+ dai->cpu_of_node = i2s_node; -+ dai->platform_name = NULL; -+ dai->platform_of_node = i2s_node; -+ } -+ } -+ digital_gain_0db_limit = -+ !of_property_read_bool(pdev->dev.of_node, -+ "allo,24db_digital_gain"); -+ -+ glb_mclk = of_property_read_bool(pdev->dev.of_node, -+ "allo,glb_mclk"); -+ -+ allo_piano_2_1_codecs[0].of_node = -+ of_parse_phandle(pdev->dev.of_node, "audio-codec", 0); -+ if (!allo_piano_2_1_codecs[0].of_node) { -+ dev_err(&pdev->dev, -+ "Property 'audio-codec' missing or invalid\n"); -+ return -EINVAL; -+ } -+ -+ allo_piano_2_1_codecs[1].of_node = -+ of_parse_phandle(pdev->dev.of_node, "audio-codec", 1); -+ if (!allo_piano_2_1_codecs[1].of_node) { -+ dev_err(&pdev->dev, -+ "Property 'audio-codec' missing or invalid\n"); -+ return -EINVAL; -+ } -+ -+ mute_gpio[0] = devm_gpiod_get_optional(&pdev->dev, "mute1", -+ GPIOD_OUT_LOW); -+ if (IS_ERR(mute_gpio[0])) { -+ ret = PTR_ERR(mute_gpio[0]); -+ dev_err(&pdev->dev, -+ "failed to get mute1 gpio6: %d\n", ret); -+ return ret; -+ } -+ -+ mute_gpio[1] = devm_gpiod_get_optional(&pdev->dev, "mute2", -+ GPIOD_OUT_LOW); -+ if (IS_ERR(mute_gpio[1])) { -+ ret = PTR_ERR(mute_gpio[1]); -+ dev_err(&pdev->dev, -+ "failed to get mute2 gpio25: %d\n", ret); -+ return ret; -+ } -+ -+ if (mute_gpio[0] && mute_gpio[1]) -+ snd_allo_piano_dac.set_bias_level = -+ snd_allo_piano_set_bias_level; -+ -+ ret = snd_soc_register_card(&snd_allo_piano_dac); -+ if (ret < 0) { -+ dev_err(&pdev->dev, -+ "snd_soc_register_card() failed: %d\n", ret); -+ return ret; -+ } -+ -+ if ((mute_gpio[0]) && (mute_gpio[1])) -+ snd_allo_piano_gpio_mute(&snd_allo_piano_dac); -+ -+ return 0; -+ } -+ -+ return -EINVAL; -+} -+ -+static int snd_allo_piano_dac_remove(struct platform_device *pdev) -+{ -+ struct snd_soc_card *card = platform_get_drvdata(pdev); -+ -+ kfree(&card->drvdata); -+ snd_allo_piano_gpio_mute(&snd_allo_piano_dac); -+ return snd_soc_unregister_card(&snd_allo_piano_dac); -+} -+ -+static const struct of_device_id snd_allo_piano_dac_of_match[] = { -+ { .compatible = "allo,piano-dac-plus", }, -+ { /* sentinel */ }, -+}; -+ -+MODULE_DEVICE_TABLE(of, snd_allo_piano_dac_of_match); -+ -+static struct platform_driver snd_allo_piano_dac_driver = { -+ .driver = { -+ .name = "snd-allo-piano-dac-plus", -+ .owner = THIS_MODULE, -+ .of_match_table = snd_allo_piano_dac_of_match, -+ }, -+ .probe = snd_allo_piano_dac_probe, -+ .remove = snd_allo_piano_dac_remove, -+}; -+ -+module_platform_driver(snd_allo_piano_dac_driver); -+ -+MODULE_AUTHOR("Baswaraj K <jaikumar@cem-solutions.net>"); -+MODULE_DESCRIPTION("ALSA ASoC Machine Driver for Allo Piano DAC Plus"); -+MODULE_LICENSE("GPL v2"); |