aboutsummaryrefslogtreecommitdiffstats
path: root/meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/1102-ASoC-AMD-add-ACP3x-PCM-platform-driver.patch
diff options
context:
space:
mode:
Diffstat (limited to 'meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/1102-ASoC-AMD-add-ACP3x-PCM-platform-driver.patch')
-rw-r--r--meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/1102-ASoC-AMD-add-ACP3x-PCM-platform-driver.patch318
1 files changed, 318 insertions, 0 deletions
diff --git a/meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/1102-ASoC-AMD-add-ACP3x-PCM-platform-driver.patch b/meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/1102-ASoC-AMD-add-ACP3x-PCM-platform-driver.patch
new file mode 100644
index 00000000..64cba807
--- /dev/null
+++ b/meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/1102-ASoC-AMD-add-ACP3x-PCM-platform-driver.patch
@@ -0,0 +1,318 @@
+From 8c4b4630d54733d5fcbc4753cde336893f3cd91a Mon Sep 17 00:00:00 2001
+From: Maruthi Srinivas Bayyavarapu <Maruthi.Bayyavarapu@amd.com>
+Date: Wed, 29 Mar 2017 18:41:45 +0530
+Subject: [PATCH 1102/4131] ASoC: AMD: add ACP3x PCM platform driver
+
+PCM platform driver binds to the platform device creatd by ACP3x PCI
+device. PCM driver registers ALSA DMA and CPU DAI components with ASoC
+framework.
+
+Signed-off-by: Maruthi Bayyavarapu <maruthi.bayyavarapu@amd.com>
+Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
+---
+ sound/soc/amd/raven/acp3x-pcm-dma.c | 278 ++++++++++++++++++++++++++++++++++++
+ sound/soc/amd/raven/acp3x.h | 3 +
+ 2 files changed, 281 insertions(+)
+ create mode 100644 sound/soc/amd/raven/acp3x-pcm-dma.c
+
+diff --git a/sound/soc/amd/raven/acp3x-pcm-dma.c b/sound/soc/amd/raven/acp3x-pcm-dma.c
+new file mode 100644
+index 0000000..3fd9f86
+--- /dev/null
++++ b/sound/soc/amd/raven/acp3x-pcm-dma.c
+@@ -0,0 +1,278 @@
++/*
++ * AMD ALSA SoC PCM Driver
++ *
++ * Copyright 2016 Advanced Micro Devices, Inc.
++ *
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms and conditions of the GNU General Public License,
++ * version 2, as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope 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/platform_device.h>
++#include <linux/module.h>
++#include <linux/err.h>
++
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/soc.h>
++#include <sound/soc-dai.h>
++
++#include "acp3x.h"
++
++struct i2s_dev_data {
++ void __iomem *acp3x_base;
++ struct snd_pcm_substream *play_stream;
++ struct snd_pcm_substream *capture_stream;
++};
++
++static int acp3x_power_on(void __iomem *acp3x_base, bool on)
++{
++ u16 val, mask;
++ u32 timeout;
++
++ if (on == true) {
++ val = 1;
++ mask = 0;
++ } else {
++ val = 0;
++ mask = 2;
++ }
++
++ rv_writel(val, acp3x_base + mmACP_PGFSM_CONTROL);
++ timeout = 0;
++ while (true) {
++ val = rv_readl(acp3x_base + mmACP_PGFSM_STATUS);
++ if ((val & 0x3) == mask)
++ break;
++ if (timeout > 100) {
++ pr_err("ACP3x power state change failure\n");
++ return -ENODEV;
++ }
++ timeout++;
++ cpu_relax();
++ }
++ return 0;
++}
++
++static int acp3x_reset(void __iomem *acp3x_base)
++{
++ u32 val, timeout;
++
++ rv_writel(1, acp3x_base + mmACP_SOFT_RESET);
++ timeout = 0;
++ while (true) {
++ val = rv_readl(acp3x_base + mmACP_SOFT_RESET);
++ if ((val & 0x00010001) || timeout > 100) {
++ if (val & 0x00010001)
++ break;
++ return -ENODEV;
++ }
++ timeout++;
++ cpu_relax();
++ }
++
++ rv_writel(0, acp3x_base + mmACP_SOFT_RESET);
++ timeout = 0;
++ while (true) {
++ val = rv_readl(acp3x_base + mmACP_SOFT_RESET);
++ if (!val || timeout > 100) {
++ if (!val)
++ break;
++ return -ENODEV;
++ }
++ timeout++;
++ cpu_relax();
++ }
++ return 0;
++}
++
++static int acp3x_init(void __iomem *acp3x_base)
++{
++ int ret;
++
++ /* power on */
++ ret = acp3x_power_on(acp3x_base, true);
++ if (ret) {
++ pr_err("ACP3x power on failed\n");
++ return ret;
++ }
++
++ /* Reset */
++ ret = acp3x_reset(acp3x_base);
++ if (ret) {
++ pr_err("ACP3x reset failed\n");
++ return ret;
++ }
++
++ pr_info("ACP Initialized\n");
++ return 0;
++}
++
++static int acp3x_deinit(void __iomem *acp3x_base)
++{
++ int ret;
++
++ /* Reset */
++ ret = acp3x_reset(acp3x_base);
++ if (ret) {
++ pr_err("ACP3x reset failed\n");
++ return ret;
++ }
++
++ /* power off */
++ ret = acp3x_power_on(acp3x_base, false);
++ if (ret) {
++ pr_err("ACP3x power off failed\n");
++ return ret;
++ }
++
++ pr_info("ACP De-Initialized\n");
++ return 0;
++}
++
++static struct snd_pcm_ops acp3x_dma_ops = {
++ .open = NULL,
++ .close = NULL,
++ .ioctl = NULL,
++ .hw_params = NULL,
++ .hw_free = NULL,
++ .pointer = NULL,
++ .mmap = NULL,
++};
++
++static struct snd_soc_platform_driver acp3x_asoc_platform = {
++ .ops = &acp3x_dma_ops,
++ .pcm_new = NULL,
++};
++
++struct snd_soc_dai_ops acp3x_dai_i2s_ops = {
++ .hw_params = NULL,
++ .trigger = NULL,
++ .set_fmt = NULL,
++};
++
++static struct snd_soc_dai_driver acp3x_i2s_dai_driver = {
++ .playback = {
++ .rates = SNDRV_PCM_RATE_8000_96000,
++ .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |
++ SNDRV_PCM_FMTBIT_U8 |
++ SNDRV_PCM_FMTBIT_S24_LE |
++ SNDRV_PCM_FMTBIT_S32_LE,
++ .channels_min = 2,
++ .channels_max = 8,
++
++ .rate_min = 8000,
++ .rate_max = 96000,
++ },
++ .capture = {
++ .rates = SNDRV_PCM_RATE_8000_48000,
++ .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |
++ SNDRV_PCM_FMTBIT_U8 |
++ SNDRV_PCM_FMTBIT_S24_LE |
++ SNDRV_PCM_FMTBIT_S32_LE,
++ .channels_min = 2,
++ .channels_max = 2,
++ .rate_min = 8000,
++ .rate_max = 48000,
++ },
++ .ops = &acp3x_dai_i2s_ops,
++};
++
++static const struct snd_soc_component_driver acp3x_i2s_component = {
++ .name = "acp3x_i2s",
++};
++
++static int acp3x_audio_probe(struct platform_device *pdev)
++{
++ int status;
++ struct resource *res;
++ struct i2s_dev_data *adata;
++ unsigned int irqflags;
++
++ if (pdev->dev.platform_data == NULL) {
++ dev_err(&pdev->dev, "platform_data not retrieved\n");
++ return -ENODEV;
++ }
++ irqflags = *((unsigned int *)(pdev->dev.platform_data));
++
++ adata = devm_kzalloc(&pdev->dev, sizeof(struct i2s_dev_data),
++ GFP_KERNEL);
++ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
++ if (!res) {
++ dev_err(&pdev->dev, "IORESOURCE_IRQ FAILED\n");
++ return -ENODEV;
++ }
++
++ adata->acp3x_base = devm_ioremap(&pdev->dev, res->start,
++ resource_size(res));
++
++ adata->play_stream = NULL;
++ adata->capture_stream = NULL;
++
++ dev_set_drvdata(&pdev->dev, adata);
++ /* Initialize ACP */
++ status = acp3x_init(adata->acp3x_base);
++ if (status)
++ return -ENODEV;
++
++ status = snd_soc_register_platform(&pdev->dev, &acp3x_asoc_platform);
++ if (status != 0) {
++ dev_err(&pdev->dev, "Fail to register ALSA platform device\n");
++ goto dev_err;
++ }
++
++ status = devm_snd_soc_register_component(&pdev->dev,
++ &acp3x_i2s_component, &acp3x_i2s_dai_driver, 1);
++ if (status != 0) {
++ dev_err(&pdev->dev, "Fail to register acp i2s dai\n");
++ snd_soc_unregister_platform(&pdev->dev);
++ goto dev_err;
++ }
++
++ return 0;
++dev_err:
++ status = acp3x_deinit(adata->acp3x_base);
++ if (status)
++ dev_err(&pdev->dev, "ACP de-init failed\n");
++ else
++ dev_info(&pdev->dev, "ACP de-initialized\n");
++ /*ignore device status and return driver probe error*/
++ return -ENODEV;
++}
++
++static int acp3x_audio_remove(struct platform_device *pdev)
++{
++ int ret;
++ struct i2s_dev_data *adata = dev_get_drvdata(&pdev->dev);
++
++ snd_soc_unregister_component(&pdev->dev);
++ snd_soc_unregister_platform(&pdev->dev);
++
++ ret = acp3x_deinit(adata->acp3x_base);
++ if (ret)
++ dev_err(&pdev->dev, "ACP de-init failed\n");
++ else
++ dev_info(&pdev->dev, "ACP de-initialized\n");
++
++ return 0;
++}
++
++static struct platform_driver acp3x_dma_driver = {
++ .probe = acp3x_audio_probe,
++ .remove = acp3x_audio_remove,
++ .driver = {
++ .name = "acp3x_rv_i2s",
++ },
++};
++
++module_platform_driver(acp3x_dma_driver);
++
++MODULE_AUTHOR("Maruthi.Bayyavarapu@amd.com");
++MODULE_DESCRIPTION("AMD ACP 3.x PCM Driver");
++MODULE_LICENSE("GPL v2");
++MODULE_ALIAS("platform:acp3x-i2s-audio");
+diff --git a/sound/soc/amd/raven/acp3x.h b/sound/soc/amd/raven/acp3x.h
+index 1996faf..b6d4659 100644
+--- a/sound/soc/amd/raven/acp3x.h
++++ b/sound/soc/amd/raven/acp3x.h
+@@ -4,6 +4,9 @@
+ #define ACP3x_I2S_MODE 0
+ #define ACP3x_REG_START 0x1240000
+ #define ACP3x_REG_END 0x1250200
++#define BT_TX_THRESHOLD 26
++#define BT_RX_THRESHOLD 25
++
+
+ static inline u32 rv_readl(void __iomem *base_addr)
+ {
+--
+2.7.4
+
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-04-19 23:44:40 +0000