diff options
Diffstat (limited to 'sound/soc/sof/intel/byt.c')
| -rw-r--r-- | sound/soc/sof/intel/byt.c | 483 |
1 files changed, 483 insertions, 0 deletions
diff --git a/sound/soc/sof/intel/byt.c b/sound/soc/sof/intel/byt.c new file mode 100644 index 000000000..faf223b38 --- /dev/null +++ b/sound/soc/sof/intel/byt.c @@ -0,0 +1,483 @@ +// 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) 2018 Intel Corporation. All rights reserved. +// +// Author: Liam Girdwood <liam.r.girdwood@linux.intel.com> +// + +/* + * Hardware interface for audio DSP on Baytrail, Braswell and Cherrytrail. + */ + +#include <linux/module.h> +#include <sound/sof.h> +#include <sound/sof/xtensa.h> +#include <sound/soc-acpi.h> +#include <sound/soc-acpi-intel-match.h> +#include <sound/intel-dsp-config.h> +#include "../ops.h" +#include "atom.h" +#include "shim.h" +#include "../sof-acpi-dev.h" +#include "../sof-audio.h" +#include "../../intel/common/soc-intel-quirks.h" + +static const struct snd_sof_debugfs_map byt_debugfs[] = { + {"dmac0", DSP_BAR, DMAC0_OFFSET, DMAC_SIZE, + SOF_DEBUGFS_ACCESS_ALWAYS}, + {"dmac1", DSP_BAR, DMAC1_OFFSET, DMAC_SIZE, + SOF_DEBUGFS_ACCESS_ALWAYS}, + {"ssp0", DSP_BAR, SSP0_OFFSET, SSP_SIZE, + SOF_DEBUGFS_ACCESS_ALWAYS}, + {"ssp1", DSP_BAR, SSP1_OFFSET, SSP_SIZE, + SOF_DEBUGFS_ACCESS_ALWAYS}, + {"ssp2", DSP_BAR, SSP2_OFFSET, SSP_SIZE, + SOF_DEBUGFS_ACCESS_ALWAYS}, + {"iram", DSP_BAR, IRAM_OFFSET, IRAM_SIZE, + SOF_DEBUGFS_ACCESS_D0_ONLY}, + {"dram", DSP_BAR, DRAM_OFFSET, DRAM_SIZE, + SOF_DEBUGFS_ACCESS_D0_ONLY}, + {"shim", DSP_BAR, SHIM_OFFSET, SHIM_SIZE_BYT, + SOF_DEBUGFS_ACCESS_ALWAYS}, +}; + +static const struct snd_sof_debugfs_map cht_debugfs[] = { + {"dmac0", DSP_BAR, DMAC0_OFFSET, DMAC_SIZE, + SOF_DEBUGFS_ACCESS_ALWAYS}, + {"dmac1", DSP_BAR, DMAC1_OFFSET, DMAC_SIZE, + SOF_DEBUGFS_ACCESS_ALWAYS}, + {"dmac2", DSP_BAR, DMAC2_OFFSET, DMAC_SIZE, + SOF_DEBUGFS_ACCESS_ALWAYS}, + {"ssp0", DSP_BAR, SSP0_OFFSET, SSP_SIZE, + SOF_DEBUGFS_ACCESS_ALWAYS}, + {"ssp1", DSP_BAR, SSP1_OFFSET, SSP_SIZE, + SOF_DEBUGFS_ACCESS_ALWAYS}, + {"ssp2", DSP_BAR, SSP2_OFFSET, SSP_SIZE, + SOF_DEBUGFS_ACCESS_ALWAYS}, + {"ssp3", DSP_BAR, SSP3_OFFSET, SSP_SIZE, + SOF_DEBUGFS_ACCESS_ALWAYS}, + {"ssp4", DSP_BAR, SSP4_OFFSET, SSP_SIZE, + SOF_DEBUGFS_ACCESS_ALWAYS}, + {"ssp5", DSP_BAR, SSP5_OFFSET, SSP_SIZE, + SOF_DEBUGFS_ACCESS_ALWAYS}, + {"iram", DSP_BAR, IRAM_OFFSET, IRAM_SIZE, + SOF_DEBUGFS_ACCESS_D0_ONLY}, + {"dram", DSP_BAR, DRAM_OFFSET, DRAM_SIZE, + SOF_DEBUGFS_ACCESS_D0_ONLY}, + {"shim", DSP_BAR, SHIM_OFFSET, SHIM_SIZE_CHT, + SOF_DEBUGFS_ACCESS_ALWAYS}, +}; + +static void byt_reset_dsp_disable_int(struct snd_sof_dev *sdev) +{ + /* Disable Interrupt from both sides */ + snd_sof_dsp_update_bits64(sdev, DSP_BAR, SHIM_IMRX, 0x3, 0x3); + snd_sof_dsp_update_bits64(sdev, DSP_BAR, SHIM_IMRD, 0x3, 0x3); + + /* Put DSP into reset, set reset vector */ + snd_sof_dsp_update_bits64(sdev, DSP_BAR, SHIM_CSR, + SHIM_BYT_CSR_RST | SHIM_BYT_CSR_VECTOR_SEL, + SHIM_BYT_CSR_RST | SHIM_BYT_CSR_VECTOR_SEL); +} + +static int byt_suspend(struct snd_sof_dev *sdev, u32 target_state) +{ + byt_reset_dsp_disable_int(sdev); + + return 0; +} + +static int byt_resume(struct snd_sof_dev *sdev) +{ + /* enable BUSY and disable DONE Interrupt by default */ + snd_sof_dsp_update_bits64(sdev, DSP_BAR, SHIM_IMRX, + SHIM_IMRX_BUSY | SHIM_IMRX_DONE, + SHIM_IMRX_DONE); + + return 0; +} + +static int byt_remove(struct snd_sof_dev *sdev) +{ + byt_reset_dsp_disable_int(sdev); + + return 0; +} + +static int byt_acpi_probe(struct snd_sof_dev *sdev) +{ + struct snd_sof_pdata *pdata = sdev->pdata; + const struct sof_dev_desc *desc = pdata->desc; + struct platform_device *pdev = + container_of(sdev->dev, struct platform_device, dev); + const struct sof_intel_dsp_desc *chip; + struct resource *mmio; + u32 base, size; + int ret; + + chip = get_chip_info(sdev->pdata); + if (!chip) { + dev_err(sdev->dev, "error: no such device supported\n"); + return -EIO; + } + + sdev->num_cores = chip->cores_num; + + /* DSP DMA can only access low 31 bits of host memory */ + ret = dma_coerce_mask_and_coherent(sdev->dev, DMA_BIT_MASK(31)); + if (ret < 0) { + dev_err(sdev->dev, "error: failed to set DMA mask %d\n", ret); + return ret; + } + + /* LPE base */ + mmio = platform_get_resource(pdev, IORESOURCE_MEM, + desc->resindex_lpe_base); + if (mmio) { + base = mmio->start; + size = resource_size(mmio); + } else { + dev_err(sdev->dev, "error: failed to get LPE base at idx %d\n", + desc->resindex_lpe_base); + return -EINVAL; + } + + dev_dbg(sdev->dev, "LPE PHY base at 0x%x size 0x%x", base, size); + sdev->bar[DSP_BAR] = devm_ioremap(sdev->dev, base, size); + if (!sdev->bar[DSP_BAR]) { + dev_err(sdev->dev, "error: failed to ioremap LPE base 0x%x size 0x%x\n", + base, size); + return -ENODEV; + } + dev_dbg(sdev->dev, "LPE VADDR %p\n", sdev->bar[DSP_BAR]); + + /* TODO: add offsets */ + sdev->mmio_bar = DSP_BAR; + sdev->mailbox_bar = DSP_BAR; + + /* IMR base - optional */ + if (desc->resindex_imr_base == -1) + goto irq; + + mmio = platform_get_resource(pdev, IORESOURCE_MEM, + desc->resindex_imr_base); + if (mmio) { + base = mmio->start; + size = resource_size(mmio); + } else { + dev_err(sdev->dev, "error: failed to get IMR base at idx %d\n", + desc->resindex_imr_base); + return -ENODEV; + } + + /* some BIOSes don't map IMR */ + if (base == 0x55aa55aa || base == 0x0) { + dev_info(sdev->dev, "IMR not set by BIOS. Ignoring\n"); + goto irq; + } + + dev_dbg(sdev->dev, "IMR base at 0x%x size 0x%x", base, size); + sdev->bar[IMR_BAR] = devm_ioremap(sdev->dev, base, size); + if (!sdev->bar[IMR_BAR]) { + dev_err(sdev->dev, "error: failed to ioremap IMR base 0x%x size 0x%x\n", + base, size); + return -ENODEV; + } + dev_dbg(sdev->dev, "IMR VADDR %p\n", sdev->bar[IMR_BAR]); + +irq: + /* register our IRQ */ + sdev->ipc_irq = platform_get_irq(pdev, desc->irqindex_host_ipc); + if (sdev->ipc_irq < 0) + return sdev->ipc_irq; + + dev_dbg(sdev->dev, "using IRQ %d\n", sdev->ipc_irq); + ret = devm_request_threaded_irq(sdev->dev, sdev->ipc_irq, + atom_irq_handler, atom_irq_thread, + IRQF_SHARED, "AudioDSP", sdev); + if (ret < 0) { + dev_err(sdev->dev, "error: failed to register IRQ %d\n", + sdev->ipc_irq); + return ret; + } + + /* enable BUSY and disable DONE Interrupt by default */ + snd_sof_dsp_update_bits64(sdev, DSP_BAR, SHIM_IMRX, + SHIM_IMRX_BUSY | SHIM_IMRX_DONE, + SHIM_IMRX_DONE); + + /* set default mailbox offset for FW ready message */ + sdev->dsp_box.offset = MBOX_OFFSET; + + return ret; +} + +/* baytrail ops */ +static struct snd_sof_dsp_ops sof_byt_ops = { + /* device init */ + .probe = byt_acpi_probe, + .remove = byt_remove, + + /* DSP core boot / reset */ + .run = atom_run, + .reset = atom_reset, + + /* Register IO uses direct mmio */ + + /* Block IO */ + .block_read = sof_block_read, + .block_write = sof_block_write, + + /* Mailbox IO */ + .mailbox_read = sof_mailbox_read, + .mailbox_write = sof_mailbox_write, + + /* doorbell */ + .irq_handler = atom_irq_handler, + .irq_thread = atom_irq_thread, + + /* ipc */ + .send_msg = atom_send_msg, + .get_mailbox_offset = atom_get_mailbox_offset, + .get_window_offset = atom_get_window_offset, + + .ipc_msg_data = sof_ipc_msg_data, + .set_stream_data_offset = sof_set_stream_data_offset, + + /* machine driver */ + .machine_select = atom_machine_select, + .machine_register = sof_machine_register, + .machine_unregister = sof_machine_unregister, + .set_mach_params = atom_set_mach_params, + + /* debug */ + .debug_map = byt_debugfs, + .debug_map_count = ARRAY_SIZE(byt_debugfs), + .dbg_dump = atom_dump, + .debugfs_add_region_item = snd_sof_debugfs_add_region_item_iomem, + + /* stream callbacks */ + .pcm_open = sof_stream_pcm_open, + .pcm_close = sof_stream_pcm_close, + + /*Firmware loading */ + .load_firmware = snd_sof_load_firmware_memcpy, + + /* PM */ + .suspend = byt_suspend, + .resume = byt_resume, + + /* DAI drivers */ + .drv = atom_dai, + .num_drv = 3, /* we have only 3 SSPs on byt*/ + + /* ALSA HW info flags */ + .hw_info = SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_PAUSE | + SNDRV_PCM_INFO_BATCH, + + .dsp_arch_ops = &sof_xtensa_arch_ops, +}; + +static const struct sof_intel_dsp_desc byt_chip_info = { + .cores_num = 1, + .host_managed_cores_mask = 1, + .hw_ip_version = SOF_INTEL_BAYTRAIL, +}; + +/* cherrytrail and braswell ops */ +static struct snd_sof_dsp_ops sof_cht_ops = { + /* device init */ + .probe = byt_acpi_probe, + .remove = byt_remove, + + /* DSP core boot / reset */ + .run = atom_run, + .reset = atom_reset, + + /* Register IO uses direct mmio */ + + /* Block IO */ + .block_read = sof_block_read, + .block_write = sof_block_write, + + /* Mailbox IO */ + .mailbox_read = sof_mailbox_read, + .mailbox_write = sof_mailbox_write, + + /* doorbell */ + .irq_handler = atom_irq_handler, + .irq_thread = atom_irq_thread, + + /* ipc */ + .send_msg = atom_send_msg, + .get_mailbox_offset = atom_get_mailbox_offset, + .get_window_offset = atom_get_window_offset, + + .ipc_msg_data = sof_ipc_msg_data, + .set_stream_data_offset = sof_set_stream_data_offset, + + /* machine driver */ + .machine_select = atom_machine_select, + .machine_register = sof_machine_register, + .machine_unregister = sof_machine_unregister, + .set_mach_params = atom_set_mach_params, + + /* debug */ + .debug_map = cht_debugfs, + .debug_map_count = ARRAY_SIZE(cht_debugfs), + .dbg_dump = atom_dump, + .debugfs_add_region_item = snd_sof_debugfs_add_region_item_iomem, + + /* stream callbacks */ + .pcm_open = sof_stream_pcm_open, + .pcm_close = sof_stream_pcm_close, + + /*Firmware loading */ + .load_firmware = snd_sof_load_firmware_memcpy, + + /* PM */ + .suspend = byt_suspend, + .resume = byt_resume, + + /* DAI drivers */ + .drv = atom_dai, + /* all 6 SSPs may be available for cherrytrail */ + .num_drv = 6, + + /* ALSA HW info flags */ + .hw_info = SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_PAUSE | + SNDRV_PCM_INFO_BATCH, + + .dsp_arch_ops = &sof_xtensa_arch_ops, +}; + +static const struct sof_intel_dsp_desc cht_chip_info = { + .cores_num = 1, + .host_managed_cores_mask = 1, + .hw_ip_version = SOF_INTEL_BAYTRAIL, +}; + +/* BYTCR uses different IRQ index */ +static const struct sof_dev_desc sof_acpi_baytrailcr_desc = { + .machines = snd_soc_acpi_intel_baytrail_machines, + .resindex_lpe_base = 0, + .resindex_pcicfg_base = 1, + .resindex_imr_base = 2, + .irqindex_host_ipc = 0, + .chip_info = &byt_chip_info, + .ipc_supported_mask = BIT(SOF_IPC), + .ipc_default = SOF_IPC, + .default_fw_path = { + [SOF_IPC] = "intel/sof", + }, + .default_tplg_path = { + [SOF_IPC] = "intel/sof-tplg", + }, + .default_fw_filename = { + [SOF_IPC] = "sof-byt.ri", + }, + .nocodec_tplg_filename = "sof-byt-nocodec.tplg", + .ops = &sof_byt_ops, +}; + +static const struct sof_dev_desc sof_acpi_baytrail_desc = { + .machines = snd_soc_acpi_intel_baytrail_machines, + .resindex_lpe_base = 0, + .resindex_pcicfg_base = 1, + .resindex_imr_base = 2, + .irqindex_host_ipc = 5, + .chip_info = &byt_chip_info, + .ipc_supported_mask = BIT(SOF_IPC), + .ipc_default = SOF_IPC, + .default_fw_path = { + [SOF_IPC] = "intel/sof", + }, + .default_tplg_path = { + [SOF_IPC] = "intel/sof-tplg", + }, + .default_fw_filename = { + [SOF_IPC] = "sof-byt.ri", + }, + .nocodec_tplg_filename = "sof-byt-nocodec.tplg", + .ops = &sof_byt_ops, +}; + +static const struct sof_dev_desc sof_acpi_cherrytrail_desc = { + .machines = snd_soc_acpi_intel_cherrytrail_machines, + .resindex_lpe_base = 0, + .resindex_pcicfg_base = 1, + .resindex_imr_base = 2, + .irqindex_host_ipc = 5, + .chip_info = &cht_chip_info, + .ipc_supported_mask = BIT(SOF_IPC), + .ipc_default = SOF_IPC, + .default_fw_path = { + [SOF_IPC] = "intel/sof", + }, + .default_tplg_path = { + [SOF_IPC] = "intel/sof-tplg", + }, + .default_fw_filename = { + [SOF_IPC] = "sof-cht.ri", + }, + .nocodec_tplg_filename = "sof-cht-nocodec.tplg", + .ops = &sof_cht_ops, +}; + +static const struct acpi_device_id sof_baytrail_match[] = { + { "80860F28", (unsigned long)&sof_acpi_baytrail_desc }, + { "808622A8", (unsigned long)&sof_acpi_cherrytrail_desc }, + { } +}; +MODULE_DEVICE_TABLE(acpi, sof_baytrail_match); + +static int sof_baytrail_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + const struct sof_dev_desc *desc; + const struct acpi_device_id *id; + int ret; + + id = acpi_match_device(dev->driver->acpi_match_table, dev); + if (!id) + return -ENODEV; + + ret = snd_intel_acpi_dsp_driver_probe(dev, id->id); + if (ret != SND_INTEL_DSP_DRIVER_ANY && ret != SND_INTEL_DSP_DRIVER_SOF) { + dev_dbg(dev, "SOF ACPI driver not selected, aborting probe\n"); + return -ENODEV; + } + + desc = (const struct sof_dev_desc *)id->driver_data; + if (desc == &sof_acpi_baytrail_desc && soc_intel_is_byt_cr(pdev)) + desc = &sof_acpi_baytrailcr_desc; + + return sof_acpi_probe(pdev, desc); +} + +/* acpi_driver definition */ +static struct platform_driver snd_sof_acpi_intel_byt_driver = { + .probe = sof_baytrail_probe, + .remove = sof_acpi_remove, + .driver = { + .name = "sof-audio-acpi-intel-byt", + .pm = &sof_acpi_pm, + .acpi_match_table = sof_baytrail_match, + }, +}; +module_platform_driver(snd_sof_acpi_intel_byt_driver); + +MODULE_LICENSE("Dual BSD/GPL"); +MODULE_IMPORT_NS(SND_SOC_SOF_INTEL_HIFI_EP_IPC); +MODULE_IMPORT_NS(SND_SOC_SOF_XTENSA); +MODULE_IMPORT_NS(SND_SOC_SOF_ACPI_DEV); +MODULE_IMPORT_NS(SND_SOC_SOF_INTEL_ATOM_HIFI_EP); |