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Diffstat (limited to '')
| -rw-r--r-- | sound/soc/sof/intel/hda.c | 1247 |
1 files changed, 1247 insertions, 0 deletions
diff --git a/sound/soc/sof/intel/hda.c b/sound/soc/sof/intel/hda.c new file mode 100644 index 000000000..b4cc72483 --- /dev/null +++ b/sound/soc/sof/intel/hda.c @@ -0,0 +1,1247 @@ +// 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. +// +// Authors: Liam Girdwood <liam.r.girdwood@linux.intel.com> +// Ranjani Sridharan <ranjani.sridharan@linux.intel.com> +// Rander Wang <rander.wang@intel.com> +// Keyon Jie <yang.jie@linux.intel.com> +// + +/* + * Hardware interface for generic Intel audio DSP HDA IP + */ + +#include <sound/hdaudio_ext.h> +#include <sound/hda_register.h> + +#include <linux/acpi.h> +#include <linux/module.h> +#include <linux/soundwire/sdw.h> +#include <linux/soundwire/sdw_intel.h> +#include <sound/intel-nhlt.h> +#include <sound/sof.h> +#include <sound/sof/xtensa.h> +#include "../sof-audio.h" +#include "../ops.h" +#include "hda.h" + +#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA) +#include <sound/soc-acpi-intel-match.h> +#endif + +/* platform specific devices */ +#include "shim.h" + +#define EXCEPT_MAX_HDR_SIZE 0x400 +#define HDA_EXT_ROM_STATUS_SIZE 8 + +static const struct sof_intel_dsp_desc + *get_chip_info(struct snd_sof_pdata *pdata) +{ + const struct sof_dev_desc *desc = pdata->desc; + const struct sof_intel_dsp_desc *chip_info; + + chip_info = desc->chip_info; + + return chip_info; +} + +#if IS_ENABLED(CONFIG_SND_SOC_SOF_INTEL_SOUNDWIRE) + +/* + * The default for SoundWire clock stop quirks is to power gate the IP + * and do a Bus Reset, this will need to be modified when the DSP + * needs to remain in D0i3 so that the Master does not lose context + * and enumeration is not required on clock restart + */ +static int sdw_clock_stop_quirks = SDW_INTEL_CLK_STOP_BUS_RESET; +module_param(sdw_clock_stop_quirks, int, 0444); +MODULE_PARM_DESC(sdw_clock_stop_quirks, "SOF SoundWire clock stop quirks"); + +static int sdw_params_stream(struct device *dev, + struct sdw_intel_stream_params_data *params_data) +{ + struct snd_sof_dev *sdev = dev_get_drvdata(dev); + struct snd_soc_dai *d = params_data->dai; + struct sof_ipc_dai_config config; + struct sof_ipc_reply reply; + int link_id = params_data->link_id; + int alh_stream_id = params_data->alh_stream_id; + int ret; + u32 size = sizeof(config); + + memset(&config, 0, size); + config.hdr.size = size; + config.hdr.cmd = SOF_IPC_GLB_DAI_MSG | SOF_IPC_DAI_CONFIG; + config.type = SOF_DAI_INTEL_ALH; + config.dai_index = (link_id << 8) | (d->id); + config.alh.stream_id = alh_stream_id; + + /* send message to DSP */ + ret = sof_ipc_tx_message(sdev->ipc, + config.hdr.cmd, &config, size, &reply, + sizeof(reply)); + if (ret < 0) { + dev_err(sdev->dev, + "error: failed to set DAI hw_params for link %d dai->id %d ALH %d\n", + link_id, d->id, alh_stream_id); + } + + return ret; +} + +static int sdw_free_stream(struct device *dev, + struct sdw_intel_stream_free_data *free_data) +{ + struct snd_sof_dev *sdev = dev_get_drvdata(dev); + struct snd_soc_dai *d = free_data->dai; + struct sof_ipc_dai_config config; + struct sof_ipc_reply reply; + int link_id = free_data->link_id; + int ret; + u32 size = sizeof(config); + + memset(&config, 0, size); + config.hdr.size = size; + config.hdr.cmd = SOF_IPC_GLB_DAI_MSG | SOF_IPC_DAI_CONFIG; + config.type = SOF_DAI_INTEL_ALH; + config.dai_index = (link_id << 8) | d->id; + config.alh.stream_id = 0xFFFF; /* invalid value on purpose */ + + /* send message to DSP */ + ret = sof_ipc_tx_message(sdev->ipc, + config.hdr.cmd, &config, size, &reply, + sizeof(reply)); + if (ret < 0) { + dev_err(sdev->dev, + "error: failed to free stream for link %d dai->id %d\n", + link_id, d->id); + } + + return ret; +} + +static const struct sdw_intel_ops sdw_callback = { + .params_stream = sdw_params_stream, + .free_stream = sdw_free_stream, +}; + +void hda_sdw_int_enable(struct snd_sof_dev *sdev, bool enable) +{ + sdw_intel_enable_irq(sdev->bar[HDA_DSP_BAR], enable); +} + +static int hda_sdw_acpi_scan(struct snd_sof_dev *sdev) +{ + struct sof_intel_hda_dev *hdev; + acpi_handle handle; + int ret; + + handle = ACPI_HANDLE(sdev->dev); + + /* save ACPI info for the probe step */ + hdev = sdev->pdata->hw_pdata; + + ret = sdw_intel_acpi_scan(handle, &hdev->info); + if (ret < 0) + return -EINVAL; + + return 0; +} + +static int hda_sdw_probe(struct snd_sof_dev *sdev) +{ + struct sof_intel_hda_dev *hdev; + struct sdw_intel_res res; + void *sdw; + + hdev = sdev->pdata->hw_pdata; + + memset(&res, 0, sizeof(res)); + + res.mmio_base = sdev->bar[HDA_DSP_BAR]; + res.irq = sdev->ipc_irq; + res.handle = hdev->info.handle; + res.parent = sdev->dev; + res.ops = &sdw_callback; + res.dev = sdev->dev; + res.clock_stop_quirks = sdw_clock_stop_quirks; + + /* + * ops and arg fields are not populated for now, + * they will be needed when the DAI callbacks are + * provided + */ + + /* we could filter links here if needed, e.g for quirks */ + res.count = hdev->info.count; + res.link_mask = hdev->info.link_mask; + + sdw = sdw_intel_probe(&res); + if (!sdw) { + dev_err(sdev->dev, "error: SoundWire probe failed\n"); + return -EINVAL; + } + + /* save context */ + hdev->sdw = sdw; + + return 0; +} + +int hda_sdw_startup(struct snd_sof_dev *sdev) +{ + struct sof_intel_hda_dev *hdev; + + hdev = sdev->pdata->hw_pdata; + + if (!hdev->sdw) + return 0; + + return sdw_intel_startup(hdev->sdw); +} + +static int hda_sdw_exit(struct snd_sof_dev *sdev) +{ + struct sof_intel_hda_dev *hdev; + + hdev = sdev->pdata->hw_pdata; + + hda_sdw_int_enable(sdev, false); + + if (hdev->sdw) + sdw_intel_exit(hdev->sdw); + hdev->sdw = NULL; + + return 0; +} + +static bool hda_dsp_check_sdw_irq(struct snd_sof_dev *sdev) +{ + struct sof_intel_hda_dev *hdev; + bool ret = false; + u32 irq_status; + + hdev = sdev->pdata->hw_pdata; + + if (!hdev->sdw) + return ret; + + /* store status */ + irq_status = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_ADSPIS2); + + /* invalid message ? */ + if (irq_status == 0xffffffff) + goto out; + + /* SDW message ? */ + if (irq_status & HDA_DSP_REG_ADSPIS2_SNDW) + ret = true; + +out: + return ret; +} + +static irqreturn_t hda_dsp_sdw_thread(int irq, void *context) +{ + return sdw_intel_thread(irq, context); +} + +static bool hda_sdw_check_wakeen_irq(struct snd_sof_dev *sdev) +{ + struct sof_intel_hda_dev *hdev; + + hdev = sdev->pdata->hw_pdata; + if (hdev->sdw && + snd_sof_dsp_read(sdev, HDA_DSP_BAR, + HDA_DSP_REG_SNDW_WAKE_STS)) + return true; + + return false; +} + +void hda_sdw_process_wakeen(struct snd_sof_dev *sdev) +{ + struct sof_intel_hda_dev *hdev; + + hdev = sdev->pdata->hw_pdata; + if (!hdev->sdw) + return; + + sdw_intel_process_wakeen_event(hdev->sdw); +} + +#endif + +/* + * Debug + */ + +struct hda_dsp_msg_code { + u32 code; + const char *msg; +}; + +static bool hda_use_msi = IS_ENABLED(CONFIG_PCI); +#if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG) +module_param_named(use_msi, hda_use_msi, bool, 0444); +MODULE_PARM_DESC(use_msi, "SOF HDA use PCI MSI mode"); +#endif + +static char *hda_model; +module_param(hda_model, charp, 0444); +MODULE_PARM_DESC(hda_model, "Use the given HDA board model."); + +#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA) +static int hda_dmic_num = -1; +module_param_named(dmic_num, hda_dmic_num, int, 0444); +MODULE_PARM_DESC(dmic_num, "SOF HDA DMIC number"); + +static bool hda_codec_use_common_hdmi = IS_ENABLED(CONFIG_SND_HDA_CODEC_HDMI); +module_param_named(use_common_hdmi, hda_codec_use_common_hdmi, bool, 0444); +MODULE_PARM_DESC(use_common_hdmi, "SOF HDA use common HDMI codec driver"); +#endif + +static const struct hda_dsp_msg_code hda_dsp_rom_msg[] = { + {HDA_DSP_ROM_FW_MANIFEST_LOADED, "status: manifest loaded"}, + {HDA_DSP_ROM_FW_FW_LOADED, "status: fw loaded"}, + {HDA_DSP_ROM_FW_ENTERED, "status: fw entered"}, + {HDA_DSP_ROM_CSE_ERROR, "error: cse error"}, + {HDA_DSP_ROM_CSE_WRONG_RESPONSE, "error: cse wrong response"}, + {HDA_DSP_ROM_IMR_TO_SMALL, "error: IMR too small"}, + {HDA_DSP_ROM_BASE_FW_NOT_FOUND, "error: base fw not found"}, + {HDA_DSP_ROM_CSE_VALIDATION_FAILED, "error: signature verification failed"}, + {HDA_DSP_ROM_IPC_FATAL_ERROR, "error: ipc fatal error"}, + {HDA_DSP_ROM_L2_CACHE_ERROR, "error: L2 cache error"}, + {HDA_DSP_ROM_LOAD_OFFSET_TO_SMALL, "error: load offset too small"}, + {HDA_DSP_ROM_API_PTR_INVALID, "error: API ptr invalid"}, + {HDA_DSP_ROM_BASEFW_INCOMPAT, "error: base fw incompatible"}, + {HDA_DSP_ROM_UNHANDLED_INTERRUPT, "error: unhandled interrupt"}, + {HDA_DSP_ROM_MEMORY_HOLE_ECC, "error: ECC memory hole"}, + {HDA_DSP_ROM_KERNEL_EXCEPTION, "error: kernel exception"}, + {HDA_DSP_ROM_USER_EXCEPTION, "error: user exception"}, + {HDA_DSP_ROM_UNEXPECTED_RESET, "error: unexpected reset"}, + {HDA_DSP_ROM_NULL_FW_ENTRY, "error: null FW entry point"}, +}; + +static void hda_dsp_get_status_skl(struct snd_sof_dev *sdev) +{ + u32 status; + int i; + + status = snd_sof_dsp_read(sdev, HDA_DSP_BAR, + HDA_ADSP_FW_STATUS_SKL); + + for (i = 0; i < ARRAY_SIZE(hda_dsp_rom_msg); i++) { + if (status == hda_dsp_rom_msg[i].code) { + dev_err(sdev->dev, "%s - code %8.8x\n", + hda_dsp_rom_msg[i].msg, status); + return; + } + } + + /* not for us, must be generic sof message */ + dev_dbg(sdev->dev, "unknown ROM status value %8.8x\n", status); +} + +static void hda_dsp_get_status(struct snd_sof_dev *sdev) +{ + u32 status; + int i; + + status = snd_sof_dsp_read(sdev, HDA_DSP_BAR, + HDA_DSP_SRAM_REG_ROM_STATUS); + + for (i = 0; i < ARRAY_SIZE(hda_dsp_rom_msg); i++) { + if (status == hda_dsp_rom_msg[i].code) { + dev_err(sdev->dev, "%s - code %8.8x\n", + hda_dsp_rom_msg[i].msg, status); + return; + } + } + + /* not for us, must be generic sof message */ + dev_dbg(sdev->dev, "unknown ROM status value %8.8x\n", status); +} + +static void hda_dsp_get_registers(struct snd_sof_dev *sdev, + struct sof_ipc_dsp_oops_xtensa *xoops, + struct sof_ipc_panic_info *panic_info, + u32 *stack, size_t stack_words) +{ + u32 offset = sdev->dsp_oops_offset; + + /* first read registers */ + sof_mailbox_read(sdev, offset, xoops, sizeof(*xoops)); + + /* note: variable AR register array is not read */ + + /* then get panic info */ + if (xoops->arch_hdr.totalsize > EXCEPT_MAX_HDR_SIZE) { + dev_err(sdev->dev, "invalid header size 0x%x. FW oops is bogus\n", + xoops->arch_hdr.totalsize); + return; + } + offset += xoops->arch_hdr.totalsize; + sof_block_read(sdev, sdev->mmio_bar, offset, + panic_info, sizeof(*panic_info)); + + /* then get the stack */ + offset += sizeof(*panic_info); + sof_block_read(sdev, sdev->mmio_bar, offset, stack, + stack_words * sizeof(u32)); +} + +void hda_dsp_dump_skl(struct snd_sof_dev *sdev, u32 flags) +{ + struct sof_ipc_dsp_oops_xtensa xoops; + struct sof_ipc_panic_info panic_info; + u32 stack[HDA_DSP_STACK_DUMP_SIZE]; + u32 status, panic; + + /* try APL specific status message types first */ + hda_dsp_get_status_skl(sdev); + + /* now try generic SOF status messages */ + status = snd_sof_dsp_read(sdev, HDA_DSP_BAR, + HDA_ADSP_ERROR_CODE_SKL); + + /*TODO: Check: there is no define in spec, but it is used in the code*/ + panic = snd_sof_dsp_read(sdev, HDA_DSP_BAR, + HDA_ADSP_ERROR_CODE_SKL + 0x4); + + if (sdev->fw_state == SOF_FW_BOOT_COMPLETE) { + hda_dsp_get_registers(sdev, &xoops, &panic_info, stack, + HDA_DSP_STACK_DUMP_SIZE); + snd_sof_get_status(sdev, status, panic, &xoops, &panic_info, + stack, HDA_DSP_STACK_DUMP_SIZE); + } else { + dev_err(sdev->dev, "error: status = 0x%8.8x panic = 0x%8.8x\n", + status, panic); + hda_dsp_get_status_skl(sdev); + } +} + +/* dump the first 8 dwords representing the extended ROM status */ +static void hda_dsp_dump_ext_rom_status(struct snd_sof_dev *sdev) +{ + struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata; + char msg[128]; + int len = 0; + u32 value; + int i; + + for (i = 0; i < HDA_EXT_ROM_STATUS_SIZE; i++) { + value = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_SRAM_REG_ROM_STATUS + i * 0x4); + len += snprintf(msg + len, sizeof(msg) - len, " 0x%x", value); + } + + sof_dev_dbg_or_err(sdev->dev, hda->boot_iteration == HDA_FW_BOOT_ATTEMPTS, + "extended rom status: %s", msg); + +} + +void hda_dsp_dump(struct snd_sof_dev *sdev, u32 flags) +{ + struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata; + struct sof_ipc_dsp_oops_xtensa xoops; + struct sof_ipc_panic_info panic_info; + u32 stack[HDA_DSP_STACK_DUMP_SIZE]; + u32 status, panic; + + /* try APL specific status message types first */ + hda_dsp_get_status(sdev); + + /* now try generic SOF status messages */ + status = snd_sof_dsp_read(sdev, HDA_DSP_BAR, + HDA_DSP_SRAM_REG_FW_STATUS); + panic = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_SRAM_REG_FW_TRACEP); + + if (sdev->fw_state == SOF_FW_BOOT_COMPLETE) { + hda_dsp_get_registers(sdev, &xoops, &panic_info, stack, + HDA_DSP_STACK_DUMP_SIZE); + snd_sof_get_status(sdev, status, panic, &xoops, &panic_info, + stack, HDA_DSP_STACK_DUMP_SIZE); + } else { + sof_dev_dbg_or_err(sdev->dev, hda->boot_iteration == HDA_FW_BOOT_ATTEMPTS, + "status = 0x%8.8x panic = 0x%8.8x\n", + status, panic); + + hda_dsp_dump_ext_rom_status(sdev); + hda_dsp_get_status(sdev); + } +} + +void hda_ipc_irq_dump(struct snd_sof_dev *sdev) +{ + struct hdac_bus *bus = sof_to_bus(sdev); + u32 adspis; + u32 intsts; + u32 intctl; + u32 ppsts; + u8 rirbsts; + + /* read key IRQ stats and config registers */ + adspis = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_ADSPIS); + intsts = snd_sof_dsp_read(sdev, HDA_DSP_HDA_BAR, SOF_HDA_INTSTS); + intctl = snd_sof_dsp_read(sdev, HDA_DSP_HDA_BAR, SOF_HDA_INTCTL); + ppsts = snd_sof_dsp_read(sdev, HDA_DSP_PP_BAR, SOF_HDA_REG_PP_PPSTS); + rirbsts = snd_hdac_chip_readb(bus, RIRBSTS); + + dev_err(sdev->dev, + "error: hda irq intsts 0x%8.8x intlctl 0x%8.8x rirb %2.2x\n", + intsts, intctl, rirbsts); + dev_err(sdev->dev, + "error: dsp irq ppsts 0x%8.8x adspis 0x%8.8x\n", + ppsts, adspis); +} + +void hda_ipc_dump(struct snd_sof_dev *sdev) +{ + u32 hipcie; + u32 hipct; + u32 hipcctl; + + hda_ipc_irq_dump(sdev); + + /* read IPC status */ + hipcie = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCIE); + hipct = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCT); + hipcctl = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCCTL); + + /* dump the IPC regs */ + /* TODO: parse the raw msg */ + dev_err(sdev->dev, + "error: host status 0x%8.8x dsp status 0x%8.8x mask 0x%8.8x\n", + hipcie, hipct, hipcctl); +} + +static int hda_init(struct snd_sof_dev *sdev) +{ + struct hda_bus *hbus; + struct hdac_bus *bus; + struct pci_dev *pci = to_pci_dev(sdev->dev); + int ret; + + hbus = sof_to_hbus(sdev); + bus = sof_to_bus(sdev); + + /* HDA bus init */ + sof_hda_bus_init(bus, &pci->dev); + + bus->use_posbuf = 1; + bus->bdl_pos_adj = 0; + bus->sync_write = 1; + + mutex_init(&hbus->prepare_mutex); + hbus->pci = pci; + hbus->mixer_assigned = -1; + hbus->modelname = hda_model; + + /* initialise hdac bus */ + bus->addr = pci_resource_start(pci, 0); +#if IS_ENABLED(CONFIG_PCI) + bus->remap_addr = pci_ioremap_bar(pci, 0); +#endif + if (!bus->remap_addr) { + dev_err(bus->dev, "error: ioremap error\n"); + return -ENXIO; + } + + /* HDA base */ + sdev->bar[HDA_DSP_HDA_BAR] = bus->remap_addr; + + /* init i915 and HDMI codecs */ + ret = hda_codec_i915_init(sdev); + if (ret < 0) + dev_warn(sdev->dev, "init of i915 and HDMI codec failed\n"); + + /* get controller capabilities */ + ret = hda_dsp_ctrl_get_caps(sdev); + if (ret < 0) + dev_err(sdev->dev, "error: get caps error\n"); + + return ret; +} + +#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA) + +static int check_nhlt_dmic(struct snd_sof_dev *sdev) +{ + struct nhlt_acpi_table *nhlt; + int dmic_num; + + nhlt = intel_nhlt_init(sdev->dev); + if (nhlt) { + dmic_num = intel_nhlt_get_dmic_geo(sdev->dev, nhlt); + intel_nhlt_free(nhlt); + if (dmic_num >= 1 && dmic_num <= 4) + return dmic_num; + } + + return 0; +} + +static const char *fixup_tplg_name(struct snd_sof_dev *sdev, + const char *sof_tplg_filename, + const char *idisp_str, + const char *dmic_str) +{ + const char *tplg_filename = NULL; + char *filename; + char *split_ext; + + filename = devm_kstrdup(sdev->dev, sof_tplg_filename, GFP_KERNEL); + if (!filename) + return NULL; + + /* this assumes a .tplg extension */ + split_ext = strsep(&filename, "."); + if (split_ext) { + tplg_filename = devm_kasprintf(sdev->dev, GFP_KERNEL, + "%s%s%s.tplg", + split_ext, idisp_str, dmic_str); + if (!tplg_filename) + return NULL; + } + return tplg_filename; +} + +#endif + +static int hda_init_caps(struct snd_sof_dev *sdev) +{ + struct hdac_bus *bus = sof_to_bus(sdev); + struct snd_sof_pdata *pdata = sdev->pdata; +#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA) + struct hdac_ext_link *hlink; +#endif + struct sof_intel_hda_dev *hdev = pdata->hw_pdata; + u32 link_mask; + int ret = 0; + + device_disable_async_suspend(bus->dev); + + /* check if dsp is there */ + if (bus->ppcap) + dev_dbg(sdev->dev, "PP capability, will probe DSP later.\n"); + + /* Init HDA controller after i915 init */ + ret = hda_dsp_ctrl_init_chip(sdev, true); + if (ret < 0) { + dev_err(bus->dev, "error: init chip failed with ret: %d\n", + ret); + return ret; + } + + /* scan SoundWire capabilities exposed by DSDT */ + ret = hda_sdw_acpi_scan(sdev); + if (ret < 0) { + dev_dbg(sdev->dev, "skipping SoundWire, not detected with ACPI scan\n"); + goto skip_soundwire; + } + + link_mask = hdev->info.link_mask; + if (!link_mask) { + dev_dbg(sdev->dev, "skipping SoundWire, no links enabled\n"); + goto skip_soundwire; + } + + /* + * probe/allocate SoundWire resources. + * The hardware configuration takes place in hda_sdw_startup + * after power rails are enabled. + * It's entirely possible to have a mix of I2S/DMIC/SoundWire + * devices, so we allocate the resources in all cases. + */ + ret = hda_sdw_probe(sdev); + if (ret < 0) { + dev_err(sdev->dev, "error: SoundWire probe error\n"); + return ret; + } + +skip_soundwire: + +#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA) + if (bus->mlcap) + snd_hdac_ext_bus_get_ml_capabilities(bus); + + /* create codec instances */ + hda_codec_probe_bus(sdev, hda_codec_use_common_hdmi); + + if (!HDA_IDISP_CODEC(bus->codec_mask)) + hda_codec_i915_display_power(sdev, false); + + /* + * we are done probing so decrement link counts + */ + list_for_each_entry(hlink, &bus->hlink_list, list) + snd_hdac_ext_bus_link_put(bus, hlink); +#endif + return 0; +} + +static irqreturn_t hda_dsp_interrupt_handler(int irq, void *context) +{ + struct snd_sof_dev *sdev = context; + + /* + * Get global interrupt status. It includes all hardware interrupt + * sources in the Intel HD Audio controller. + */ + if (snd_sof_dsp_read(sdev, HDA_DSP_HDA_BAR, SOF_HDA_INTSTS) & + SOF_HDA_INTSTS_GIS) { + + /* disable GIE interrupt */ + snd_sof_dsp_update_bits(sdev, HDA_DSP_HDA_BAR, + SOF_HDA_INTCTL, + SOF_HDA_INT_GLOBAL_EN, + 0); + + return IRQ_WAKE_THREAD; + } + + return IRQ_NONE; +} + +static irqreturn_t hda_dsp_interrupt_thread(int irq, void *context) +{ + struct snd_sof_dev *sdev = context; + struct sof_intel_hda_dev *hdev = sdev->pdata->hw_pdata; + + /* deal with streams and controller first */ + if (hda_dsp_check_stream_irq(sdev)) + hda_dsp_stream_threaded_handler(irq, sdev); + + if (hda_dsp_check_ipc_irq(sdev)) + sof_ops(sdev)->irq_thread(irq, sdev); + + if (hda_dsp_check_sdw_irq(sdev)) + hda_dsp_sdw_thread(irq, hdev->sdw); + + if (hda_sdw_check_wakeen_irq(sdev)) + hda_sdw_process_wakeen(sdev); + + /* enable GIE interrupt */ + snd_sof_dsp_update_bits(sdev, HDA_DSP_HDA_BAR, + SOF_HDA_INTCTL, + SOF_HDA_INT_GLOBAL_EN, + SOF_HDA_INT_GLOBAL_EN); + + return IRQ_HANDLED; +} + +int hda_dsp_probe(struct snd_sof_dev *sdev) +{ + struct pci_dev *pci = to_pci_dev(sdev->dev); + struct sof_intel_hda_dev *hdev; + struct hdac_bus *bus; + const struct sof_intel_dsp_desc *chip; + int ret = 0; + + /* + * detect DSP by checking class/subclass/prog-id information + * class=04 subclass 03 prog-if 00: no DSP, legacy driver is required + * class=04 subclass 01 prog-if 00: DSP is present + * (and may be required e.g. for DMIC or SSP support) + * class=04 subclass 03 prog-if 80: either of DSP or legacy mode works + */ + if (pci->class == 0x040300) { + dev_err(sdev->dev, "error: the DSP is not enabled on this platform, aborting probe\n"); + return -ENODEV; + } else if (pci->class != 0x040100 && pci->class != 0x040380) { + dev_err(sdev->dev, "error: unknown PCI class/subclass/prog-if 0x%06x found, aborting probe\n", pci->class); + return -ENODEV; + } + dev_info(sdev->dev, "DSP detected with PCI class/subclass/prog-if 0x%06x\n", pci->class); + + chip = get_chip_info(sdev->pdata); + if (!chip) { + dev_err(sdev->dev, "error: no such device supported, chip id:%x\n", + pci->device); + ret = -EIO; + goto err; + } + + hdev = devm_kzalloc(sdev->dev, sizeof(*hdev), GFP_KERNEL); + if (!hdev) + return -ENOMEM; + sdev->pdata->hw_pdata = hdev; + hdev->desc = chip; + + hdev->dmic_dev = platform_device_register_data(sdev->dev, "dmic-codec", + PLATFORM_DEVID_NONE, + NULL, 0); + if (IS_ERR(hdev->dmic_dev)) { + dev_err(sdev->dev, "error: failed to create DMIC device\n"); + return PTR_ERR(hdev->dmic_dev); + } + + /* + * use position update IPC if either it is forced + * or we don't have other choice + */ +#if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_FORCE_IPC_POSITION) + hdev->no_ipc_position = 0; +#else + hdev->no_ipc_position = sof_ops(sdev)->pcm_pointer ? 1 : 0; +#endif + + /* set up HDA base */ + bus = sof_to_bus(sdev); + ret = hda_init(sdev); + if (ret < 0) + goto hdac_bus_unmap; + + /* DSP base */ +#if IS_ENABLED(CONFIG_PCI) + sdev->bar[HDA_DSP_BAR] = pci_ioremap_bar(pci, HDA_DSP_BAR); +#endif + if (!sdev->bar[HDA_DSP_BAR]) { + dev_err(sdev->dev, "error: ioremap error\n"); + ret = -ENXIO; + goto hdac_bus_unmap; + } + + sdev->mmio_bar = HDA_DSP_BAR; + sdev->mailbox_bar = HDA_DSP_BAR; + + /* allow 64bit DMA address if supported by H/W */ + if (!dma_set_mask(&pci->dev, DMA_BIT_MASK(64))) { + dev_dbg(sdev->dev, "DMA mask is 64 bit\n"); + dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(64)); + } else { + dev_dbg(sdev->dev, "DMA mask is 32 bit\n"); + dma_set_mask(&pci->dev, DMA_BIT_MASK(32)); + dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(32)); + } + + /* init streams */ + ret = hda_dsp_stream_init(sdev); + if (ret < 0) { + dev_err(sdev->dev, "error: failed to init streams\n"); + /* + * not all errors are due to memory issues, but trying + * to free everything does not harm + */ + goto free_streams; + } + + /* + * register our IRQ + * let's try to enable msi firstly + * if it fails, use legacy interrupt mode + * TODO: support msi multiple vectors + */ + if (hda_use_msi && pci_alloc_irq_vectors(pci, 1, 1, PCI_IRQ_MSI) > 0) { + dev_info(sdev->dev, "use msi interrupt mode\n"); + sdev->ipc_irq = pci_irq_vector(pci, 0); + /* initialised to "false" by kzalloc() */ + sdev->msi_enabled = true; + } + + if (!sdev->msi_enabled) { + dev_info(sdev->dev, "use legacy interrupt mode\n"); + /* + * in IO-APIC mode, hda->irq and ipc_irq are using the same + * irq number of pci->irq + */ + sdev->ipc_irq = pci->irq; + } + + dev_dbg(sdev->dev, "using IPC IRQ %d\n", sdev->ipc_irq); + ret = request_threaded_irq(sdev->ipc_irq, hda_dsp_interrupt_handler, + hda_dsp_interrupt_thread, + IRQF_SHARED, "AudioDSP", sdev); + if (ret < 0) { + dev_err(sdev->dev, "error: failed to register IPC IRQ %d\n", + sdev->ipc_irq); + goto free_irq_vector; + } + + pci_set_master(pci); + synchronize_irq(pci->irq); + + /* + * clear TCSEL to clear playback on some HD Audio + * codecs. PCI TCSEL is defined in the Intel manuals. + */ + snd_sof_pci_update_bits(sdev, PCI_TCSEL, 0x07, 0); + + /* init HDA capabilities */ + ret = hda_init_caps(sdev); + if (ret < 0) + goto free_ipc_irq; + + /* enable ppcap interrupt */ + hda_dsp_ctrl_ppcap_enable(sdev, true); + hda_dsp_ctrl_ppcap_int_enable(sdev, true); + + /* set default mailbox offset for FW ready message */ + sdev->dsp_box.offset = HDA_DSP_MBOX_UPLINK_OFFSET; + + INIT_DELAYED_WORK(&hdev->d0i3_work, hda_dsp_d0i3_work); + + return 0; + +free_ipc_irq: + free_irq(sdev->ipc_irq, sdev); +free_irq_vector: + if (sdev->msi_enabled) + pci_free_irq_vectors(pci); +free_streams: + hda_dsp_stream_free(sdev); +/* dsp_unmap: not currently used */ + iounmap(sdev->bar[HDA_DSP_BAR]); +hdac_bus_unmap: + platform_device_unregister(hdev->dmic_dev); + iounmap(bus->remap_addr); + hda_codec_i915_exit(sdev); +err: + return ret; +} + +int hda_dsp_remove(struct snd_sof_dev *sdev) +{ + struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata; + struct hdac_bus *bus = sof_to_bus(sdev); + struct pci_dev *pci = to_pci_dev(sdev->dev); + const struct sof_intel_dsp_desc *chip = hda->desc; + + /* cancel any attempt for DSP D0I3 */ + cancel_delayed_work_sync(&hda->d0i3_work); + +#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA) + /* codec removal, invoke bus_device_remove */ + snd_hdac_ext_bus_device_remove(bus); +#endif + + hda_sdw_exit(sdev); + + if (!IS_ERR_OR_NULL(hda->dmic_dev)) + platform_device_unregister(hda->dmic_dev); + + /* disable DSP IRQ */ + snd_sof_dsp_update_bits(sdev, HDA_DSP_PP_BAR, SOF_HDA_REG_PP_PPCTL, + SOF_HDA_PPCTL_PIE, 0); + + /* disable CIE and GIE interrupts */ + snd_sof_dsp_update_bits(sdev, HDA_DSP_HDA_BAR, SOF_HDA_INTCTL, + SOF_HDA_INT_CTRL_EN | SOF_HDA_INT_GLOBAL_EN, 0); + + /* disable cores */ + if (chip) + hda_dsp_core_reset_power_down(sdev, chip->host_managed_cores_mask); + + /* disable DSP */ + snd_sof_dsp_update_bits(sdev, HDA_DSP_PP_BAR, SOF_HDA_REG_PP_PPCTL, + SOF_HDA_PPCTL_GPROCEN, 0); + + free_irq(sdev->ipc_irq, sdev); + if (sdev->msi_enabled) + pci_free_irq_vectors(pci); + + hda_dsp_stream_free(sdev); +#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA) + snd_hdac_link_free_all(bus); +#endif + + iounmap(sdev->bar[HDA_DSP_BAR]); + iounmap(bus->remap_addr); + +#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA) + snd_hdac_ext_bus_exit(bus); +#endif + hda_codec_i915_exit(sdev); + + return 0; +} + +#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA) +static int hda_generic_machine_select(struct snd_sof_dev *sdev) +{ + struct hdac_bus *bus = sof_to_bus(sdev); + struct snd_soc_acpi_mach_params *mach_params; + struct snd_soc_acpi_mach *hda_mach; + struct snd_sof_pdata *pdata = sdev->pdata; + const char *tplg_filename; + const char *idisp_str; + const char *dmic_str; + int dmic_num = 0; + int codec_num = 0; + int i; + + /* codec detection */ + if (!bus->codec_mask) { + dev_info(bus->dev, "no hda codecs found!\n"); + } else { + dev_info(bus->dev, "hda codecs found, mask %lx\n", + bus->codec_mask); + + for (i = 0; i < HDA_MAX_CODECS; i++) { + if (bus->codec_mask & (1 << i)) + codec_num++; + } + + /* + * If no machine driver is found, then: + * + * generic hda machine driver can handle: + * - one HDMI codec, and/or + * - one external HDAudio codec + */ + if (!pdata->machine && codec_num <= 2) { + hda_mach = snd_soc_acpi_intel_hda_machines; + + /* topology: use the info from hda_machines */ + pdata->tplg_filename = + hda_mach->sof_tplg_filename; + + dev_info(bus->dev, "using HDA machine driver %s now\n", + hda_mach->drv_name); + + if (codec_num == 1 && HDA_IDISP_CODEC(bus->codec_mask)) + idisp_str = "-idisp"; + else + idisp_str = ""; + + /* first check NHLT for DMICs */ + dmic_num = check_nhlt_dmic(sdev); + + /* allow for module parameter override */ + if (hda_dmic_num != -1) + dmic_num = hda_dmic_num; + + switch (dmic_num) { + case 1: + dmic_str = "-1ch"; + break; + case 2: + dmic_str = "-2ch"; + break; + case 3: + dmic_str = "-3ch"; + break; + case 4: + dmic_str = "-4ch"; + break; + default: + dmic_num = 0; + dmic_str = ""; + break; + } + + tplg_filename = pdata->tplg_filename; + tplg_filename = fixup_tplg_name(sdev, tplg_filename, + idisp_str, dmic_str); + if (!tplg_filename) + return -EINVAL; + + dev_info(bus->dev, + "DMICs detected in NHLT tables: %d\n", + dmic_num); + + pdata->machine = hda_mach; + pdata->tplg_filename = tplg_filename; + } + } + + /* used by hda machine driver to create dai links */ + if (pdata->machine) { + mach_params = (struct snd_soc_acpi_mach_params *) + &pdata->machine->mach_params; + mach_params->codec_mask = bus->codec_mask; + mach_params->common_hdmi_codec_drv = hda_codec_use_common_hdmi; + mach_params->dmic_num = dmic_num; + } + + return 0; +} +#else +static int hda_generic_machine_select(struct snd_sof_dev *sdev) +{ + return 0; +} +#endif + +#if IS_ENABLED(CONFIG_SND_SOC_SOF_INTEL_SOUNDWIRE) +/* Check if all Slaves defined on the link can be found */ +static bool link_slaves_found(struct snd_sof_dev *sdev, + const struct snd_soc_acpi_link_adr *link, + struct sdw_intel_ctx *sdw) +{ + struct hdac_bus *bus = sof_to_bus(sdev); + struct sdw_intel_slave_id *ids = sdw->ids; + int num_slaves = sdw->num_slaves; + unsigned int part_id, link_id, unique_id, mfg_id; + int i, j; + + for (i = 0; i < link->num_adr; i++) { + u64 adr = link->adr_d[i].adr; + + mfg_id = SDW_MFG_ID(adr); + part_id = SDW_PART_ID(adr); + link_id = SDW_DISCO_LINK_ID(adr); + for (j = 0; j < num_slaves; j++) { + if (ids[j].link_id != link_id || + ids[j].id.part_id != part_id || + ids[j].id.mfg_id != mfg_id) + continue; + /* + * we have to check unique id + * if there is more than one + * Slave on the link + */ + unique_id = SDW_UNIQUE_ID(adr); + if (link->num_adr == 1 || + ids[j].id.unique_id == SDW_IGNORED_UNIQUE_ID || + ids[j].id.unique_id == unique_id) { + dev_dbg(bus->dev, + "found %x at link %d\n", + part_id, link_id); + break; + } + } + if (j == num_slaves) { + dev_dbg(bus->dev, + "Slave %x not found\n", + part_id); + return false; + } + } + return true; +} + +static int hda_sdw_machine_select(struct snd_sof_dev *sdev) +{ + struct snd_sof_pdata *pdata = sdev->pdata; + const struct snd_soc_acpi_link_adr *link; + struct hdac_bus *bus = sof_to_bus(sdev); + struct snd_soc_acpi_mach *mach; + struct sof_intel_hda_dev *hdev; + u32 link_mask; + int i; + + hdev = pdata->hw_pdata; + link_mask = hdev->info.link_mask; + + /* + * Select SoundWire machine driver if needed using the + * alternate tables. This case deals with SoundWire-only + * machines, for mixed cases with I2C/I2S the detection relies + * on the HID list. + */ + if (link_mask && !pdata->machine) { + for (mach = pdata->desc->alt_machines; + mach && mach->link_mask; mach++) { + /* + * On some platforms such as Up Extreme all links + * are enabled but only one link can be used by + * external codec. Instead of exact match of two masks, + * first check whether link_mask of mach is subset of + * link_mask supported by hw and then go on searching + * link_adr + */ + if (~link_mask & mach->link_mask) + continue; + + /* No need to match adr if there is no links defined */ + if (!mach->links) + break; + + link = mach->links; + for (i = 0; i < hdev->info.count && link->num_adr; + i++, link++) { + /* + * Try next machine if any expected Slaves + * are not found on this link. + */ + if (!link_slaves_found(sdev, link, hdev->sdw)) + break; + } + /* Found if all Slaves are checked */ + if (i == hdev->info.count || !link->num_adr) + break; + } + if (mach && mach->link_mask) { + dev_dbg(bus->dev, + "SoundWire machine driver %s topology %s\n", + mach->drv_name, + mach->sof_tplg_filename); + pdata->machine = mach; + mach->mach_params.links = mach->links; + mach->mach_params.link_mask = mach->link_mask; + mach->mach_params.platform = dev_name(sdev->dev); + pdata->fw_filename = mach->sof_fw_filename; + pdata->tplg_filename = mach->sof_tplg_filename; + } else { + dev_info(sdev->dev, + "No SoundWire machine driver found\n"); + } + } + + return 0; +} +#else +static int hda_sdw_machine_select(struct snd_sof_dev *sdev) +{ + return 0; +} +#endif + +void hda_set_mach_params(const struct snd_soc_acpi_mach *mach, + struct device *dev) +{ + struct snd_soc_acpi_mach_params *mach_params; + + mach_params = (struct snd_soc_acpi_mach_params *)&mach->mach_params; + mach_params->platform = dev_name(dev); +} + +void hda_machine_select(struct snd_sof_dev *sdev) +{ + struct snd_sof_pdata *sof_pdata = sdev->pdata; + const struct sof_dev_desc *desc = sof_pdata->desc; + struct snd_soc_acpi_mach *mach; + + mach = snd_soc_acpi_find_machine(desc->machines); + if (mach) { + /* + * If tplg file name is overridden, use it instead of + * the one set in mach table + */ + if (!sof_pdata->tplg_filename) + sof_pdata->tplg_filename = mach->sof_tplg_filename; + + sof_pdata->machine = mach; + + if (mach->link_mask) { + mach->mach_params.links = mach->links; + mach->mach_params.link_mask = mach->link_mask; + } + } + + /* + * If I2S fails, try SoundWire + */ + hda_sdw_machine_select(sdev); + + /* + * Choose HDA generic machine driver if mach is NULL. + * Otherwise, set certain mach params. + */ + hda_generic_machine_select(sdev); + + if (!sof_pdata->machine) + dev_warn(sdev->dev, "warning: No matching ASoC machine driver found\n"); +} + +MODULE_LICENSE("Dual BSD/GPL"); +MODULE_IMPORT_NS(SND_SOC_SOF_HDA_AUDIO_CODEC); +MODULE_IMPORT_NS(SND_SOC_SOF_HDA_AUDIO_CODEC_I915); +MODULE_IMPORT_NS(SND_SOC_SOF_XTENSA); +MODULE_IMPORT_NS(SOUNDWIRE_INTEL_INIT); |