diff options
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.patch | 318 |
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 + |