diff options
Diffstat (limited to 'sound/soc/amd/acp/acp63.c')
| -rw-r--r-- | sound/soc/amd/acp/acp63.c | 322 |
1 files changed, 322 insertions, 0 deletions
diff --git a/sound/soc/amd/acp/acp63.c b/sound/soc/amd/acp/acp63.c new file mode 100644 index 000000000000..b871a216a6af --- /dev/null +++ b/sound/soc/amd/acp/acp63.c @@ -0,0 +1,322 @@ +// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) +// +// This file is provided under a dual BSD/GPLv2 license. When using or +// redistributing this file, you may do so under either license. +// +// Copyright(c) 2023 Advanced Micro Devices, Inc. +// +// Authors: Syed Saba kareem <syed.sabakareem@amd.com> +/* + * Hardware interface for ACP6.3 block + */ + +#include <linux/platform_device.h> +#include <linux/module.h> +#include <linux/err.h> +#include <linux/io.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/soc-dai.h> +#include <linux/dma-mapping.h> +#include <linux/pm_runtime.h> +#include <linux/pci.h> +#include "amd.h" +#include "acp-mach.h" +#include "../mach-config.h" + +#define DRV_NAME "acp_asoc_acp63" + +#define CLK_PLL_PWR_REQ_N0 0X0006C2C0 +#define CLK_SPLL_FIELD_2_N0 0X0006C114 +#define CLK_PLL_REQ_N0 0X0006C0DC +#define CLK_DFSBYPASS_CONTR 0X0006C2C8 +#define CLK_DFS_CNTL_N0 0X0006C1A4 + +#define PLL_AUTO_STOP_REQ BIT(4) +#define PLL_AUTO_START_REQ BIT(0) +#define PLL_FRANCE_EN BIT(4) +#define EXIT_DPF_BYPASS_0 BIT(16) +#define EXIT_DPF_BYPASS_1 BIT(17) +#define CLK0_DIVIDER 0X30 + +union clk_pll_req_no { + struct { + u32 fb_mult_int : 9; + u32 reserved : 3; + u32 pll_spine_div : 4; + u32 gb_mult_frac : 16; + } bitfields, bits; + u32 clk_pll_req_no_reg; +}; + +static struct acp_resource rsrc = { + .offset = 0, + .no_of_ctrls = 2, + .irqp_used = 1, + .soc_mclk = true, + .irq_reg_offset = 0x1a00, + .i2s_pin_cfg_offset = 0x1440, + .i2s_mode = 0x0a, + .scratch_reg_offset = 0x12800, + .sram_pte_offset = 0x03802800, +}; + +static struct snd_soc_acpi_mach snd_soc_acpi_amd_acp63_acp_machines[] = { + { + .id = "AMDI0052", + .drv_name = "acp63-acp", + }, + {}, +}; + +static struct snd_soc_dai_driver acp63_dai[] = { +{ + .name = "acp-i2s-sp", + .id = I2S_SP_INSTANCE, + .playback = { + .stream_name = "I2S SP Playback", + .rates = SNDRV_PCM_RATE_8000_96000, + .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 | + SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE, + .channels_min = 2, + .channels_max = 8, + .rate_min = 8000, + .rate_max = 96000, + }, + .capture = { + .stream_name = "I2S SP Capture", + .rates = SNDRV_PCM_RATE_8000_48000, + .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 | + SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE, + .channels_min = 2, + .channels_max = 2, + .rate_min = 8000, + .rate_max = 48000, + }, + .ops = &asoc_acp_cpu_dai_ops, +}, +{ + .name = "acp-i2s-bt", + .id = I2S_BT_INSTANCE, + .playback = { + .stream_name = "I2S BT Playback", + .rates = SNDRV_PCM_RATE_8000_96000, + .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 | + SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE, + .channels_min = 2, + .channels_max = 8, + .rate_min = 8000, + .rate_max = 96000, + }, + .capture = { + .stream_name = "I2S BT Capture", + .rates = SNDRV_PCM_RATE_8000_48000, + .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 | + SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE, + .channels_min = 2, + .channels_max = 2, + .rate_min = 8000, + .rate_max = 48000, + }, + .ops = &asoc_acp_cpu_dai_ops, +}, +{ + .name = "acp-i2s-hs", + .id = I2S_HS_INSTANCE, + .playback = { + .stream_name = "I2S HS Playback", + .rates = SNDRV_PCM_RATE_8000_96000, + .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 | + SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE, + .channels_min = 2, + .channels_max = 8, + .rate_min = 8000, + .rate_max = 96000, + }, + .capture = { + .stream_name = "I2S HS Capture", + .rates = SNDRV_PCM_RATE_8000_48000, + .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 | + SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE, + .channels_min = 2, + .channels_max = 8, + .rate_min = 8000, + .rate_max = 48000, + }, + .ops = &asoc_acp_cpu_dai_ops, +}, +{ + .name = "acp-pdm-dmic", + .id = DMIC_INSTANCE, + .capture = { + .rates = SNDRV_PCM_RATE_8000_48000, + .formats = SNDRV_PCM_FMTBIT_S32_LE, + .channels_min = 2, + .channels_max = 2, + .rate_min = 8000, + .rate_max = 48000, + }, + .ops = &acp_dmic_dai_ops, +}, +}; + +static int acp63_i2s_master_clock_generate(struct acp_dev_data *adata) +{ + u32 data; + union clk_pll_req_no clk_pll; + struct pci_dev *smn_dev; + + smn_dev = pci_get_device(PCI_VENDOR_ID_AMD, 0x14E8, NULL); + if (!smn_dev) + return -ENODEV; + + /* Clk5 pll register values to get mclk as 196.6MHz*/ + clk_pll.bits.fb_mult_int = 0x31; + clk_pll.bits.pll_spine_div = 0; + clk_pll.bits.gb_mult_frac = 0x26E9; + + data = smn_read(smn_dev, CLK_PLL_PWR_REQ_N0); + smn_write(smn_dev, CLK_PLL_PWR_REQ_N0, data | PLL_AUTO_STOP_REQ); + + data = smn_read(smn_dev, CLK_SPLL_FIELD_2_N0); + if (data & PLL_FRANCE_EN) + smn_write(smn_dev, CLK_SPLL_FIELD_2_N0, data | PLL_FRANCE_EN); + + smn_write(smn_dev, CLK_PLL_REQ_N0, clk_pll.clk_pll_req_no_reg); + + data = smn_read(smn_dev, CLK_PLL_PWR_REQ_N0); + smn_write(smn_dev, CLK_PLL_PWR_REQ_N0, data | PLL_AUTO_START_REQ); + + data = smn_read(smn_dev, CLK_DFSBYPASS_CONTR); + smn_write(smn_dev, CLK_DFSBYPASS_CONTR, data | EXIT_DPF_BYPASS_0); + smn_write(smn_dev, CLK_DFSBYPASS_CONTR, data | EXIT_DPF_BYPASS_1); + + smn_write(smn_dev, CLK_DFS_CNTL_N0, CLK0_DIVIDER); + return 0; +} + +static int acp63_audio_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct acp_chip_info *chip; + struct acp_dev_data *adata; + struct resource *res; + int ret; + + chip = dev_get_platdata(&pdev->dev); + if (!chip || !chip->base) { + dev_err(&pdev->dev, "ACP chip data is NULL\n"); + return -ENODEV; + } + + if (chip->acp_rev != ACP63_DEV) { + dev_err(&pdev->dev, "Un-supported ACP Revision %d\n", chip->acp_rev); + return -ENODEV; + } + + adata = devm_kzalloc(dev, sizeof(struct acp_dev_data), GFP_KERNEL); + if (!adata) + return -ENOMEM; + + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "acp_mem"); + if (!res) { + dev_err(&pdev->dev, "IORESOURCE_MEM FAILED\n"); + return -ENODEV; + } + + adata->acp_base = devm_ioremap(&pdev->dev, res->start, resource_size(res)); + if (!adata->acp_base) + return -ENOMEM; + + res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "acp_dai_irq"); + if (!res) { + dev_err(&pdev->dev, "IORESOURCE_IRQ FAILED\n"); + return -ENODEV; + } + + adata->i2s_irq = res->start; + adata->dev = dev; + adata->dai_driver = acp63_dai; + adata->num_dai = ARRAY_SIZE(acp63_dai); + adata->rsrc = &rsrc; + adata->platform = ACP63; + adata->flag = chip->flag; + adata->machines = snd_soc_acpi_amd_acp63_acp_machines; + acp_machine_select(adata); + dev_set_drvdata(dev, adata); + + if (chip->flag != FLAG_AMD_LEGACY_ONLY_DMIC) { + ret = acp63_i2s_master_clock_generate(adata); + if (ret) + return ret; + } + acp_enable_interrupts(adata); + acp_platform_register(dev); + pm_runtime_set_autosuspend_delay(&pdev->dev, ACP_SUSPEND_DELAY_MS); + pm_runtime_use_autosuspend(&pdev->dev); + pm_runtime_mark_last_busy(&pdev->dev); + pm_runtime_set_active(&pdev->dev); + pm_runtime_enable(&pdev->dev); + return 0; +} + +static void acp63_audio_remove(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct acp_dev_data *adata = dev_get_drvdata(dev); + + acp_disable_interrupts(adata); + acp_platform_unregister(dev); + pm_runtime_disable(&pdev->dev); +} + +static int __maybe_unused acp63_pcm_resume(struct device *dev) +{ + struct acp_dev_data *adata = dev_get_drvdata(dev); + struct acp_stream *stream; + struct snd_pcm_substream *substream; + snd_pcm_uframes_t buf_in_frames; + u64 buf_size; + + if (adata->flag != FLAG_AMD_LEGACY_ONLY_DMIC) + acp63_i2s_master_clock_generate(adata); + + spin_lock(&adata->acp_lock); + list_for_each_entry(stream, &adata->stream_list, list) { + if (stream) { + substream = stream->substream; + if (substream && substream->runtime) { + buf_in_frames = (substream->runtime->buffer_size); + buf_size = frames_to_bytes(substream->runtime, buf_in_frames); + config_pte_for_stream(adata, stream); + config_acp_dma(adata, stream, buf_size); + if (stream->dai_id) + restore_acp_i2s_params(substream, adata, stream); + else + restore_acp_pdm_params(substream, adata); + } + } + } + spin_unlock(&adata->acp_lock); + return 0; +} + +static const struct dev_pm_ops acp63_dma_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(NULL, acp63_pcm_resume) +}; + +static struct platform_driver acp63_driver = { + .probe = acp63_audio_probe, + .remove_new = acp63_audio_remove, + .driver = { + .name = "acp_asoc_acp63", + .pm = &acp63_dma_pm_ops, + }, +}; + +module_platform_driver(acp63_driver); + +MODULE_DESCRIPTION("AMD ACP acp63 Driver"); +MODULE_IMPORT_NS(SND_SOC_ACP_COMMON); +MODULE_LICENSE("Dual BSD/GPL"); +MODULE_ALIAS("platform:" DRV_NAME); |