// SPDX-License-Identifier: GPL-2.0-only // // Copyright(c) 2020 Intel Corporation. All rights reserved. // // Author: Cezary Rojewski // // Special thanks to: // Marcin Barlik // Piotr Papierkowski // // for sharing LPT-LP and WTP-LP AudioDSP architecture expertise and // helping backtrack its historical background // #include #include #include #include #include #include #include #include #include #include #include "core.h" #include "registers.h" #define CREATE_TRACE_POINTS #include "trace.h" static int __maybe_unused catpt_suspend(struct device *dev) { struct catpt_dev *cdev = dev_get_drvdata(dev); struct dma_chan *chan; int ret; chan = catpt_dma_request_config_chan(cdev); if (IS_ERR(chan)) return PTR_ERR(chan); memset(&cdev->dx_ctx, 0, sizeof(cdev->dx_ctx)); ret = catpt_ipc_enter_dxstate(cdev, CATPT_DX_STATE_D3, &cdev->dx_ctx); if (ret) { ret = CATPT_IPC_ERROR(ret); goto release_dma_chan; } ret = catpt_dsp_stall(cdev, true); if (ret) goto release_dma_chan; ret = catpt_store_memdumps(cdev, chan); if (ret) { dev_err(cdev->dev, "store memdumps failed: %d\n", ret); goto release_dma_chan; } ret = catpt_store_module_states(cdev, chan); if (ret) { dev_err(cdev->dev, "store module states failed: %d\n", ret); goto release_dma_chan; } ret = catpt_store_streams_context(cdev, chan); if (ret) dev_err(cdev->dev, "store streams ctx failed: %d\n", ret); release_dma_chan: dma_release_channel(chan); if (ret) return ret; return cdev->spec->power_down(cdev); } static int __maybe_unused catpt_resume(struct device *dev) { struct catpt_dev *cdev = dev_get_drvdata(dev); int ret, i; ret = cdev->spec->power_up(cdev); if (ret) return ret; if (!module_is_live(dev->driver->owner)) { dev_info(dev, "module unloading, skipping fw boot\n"); return 0; } ret = catpt_boot_firmware(cdev, true); if (ret) { dev_err(cdev->dev, "boot firmware failed: %d\n", ret); return ret; } /* reconfigure SSP devices after Dx transition */ for (i = 0; i < CATPT_SSP_COUNT; i++) { if (cdev->devfmt[i].iface == UINT_MAX) continue; ret = catpt_ipc_set_device_format(cdev, &cdev->devfmt[i]); if (ret) return CATPT_IPC_ERROR(ret); } return 0; } static int __maybe_unused catpt_runtime_suspend(struct device *dev) { if (!module_is_live(dev->driver->owner)) { dev_info(dev, "module unloading, skipping suspend\n"); return 0; } return catpt_suspend(dev); } static int __maybe_unused catpt_runtime_resume(struct device *dev) { return catpt_resume(dev); } static const struct dev_pm_ops catpt_dev_pm = { SET_SYSTEM_SLEEP_PM_OPS(catpt_suspend, catpt_resume) SET_RUNTIME_PM_OPS(catpt_runtime_suspend, catpt_runtime_resume, NULL) }; /* machine board owned by CATPT is removed with this hook */ static void board_pdev_unregister(void *data) { platform_device_unregister(data); } static int catpt_register_board(struct catpt_dev *cdev) { const struct catpt_spec *spec = cdev->spec; struct snd_soc_acpi_mach *mach; struct platform_device *board; mach = snd_soc_acpi_find_machine(spec->machines); if (!mach) { dev_info(cdev->dev, "no machines present\n"); return 0; } mach->mach_params.platform = "catpt-platform"; board = platform_device_register_data(NULL, mach->drv_name, PLATFORM_DEVID_NONE, (const void *)mach, sizeof(*mach)); if (IS_ERR(board)) { dev_err(cdev->dev, "board register failed\n"); return PTR_ERR(board); } return devm_add_action_or_reset(cdev->dev, board_pdev_unregister, board); } static int catpt_probe_components(struct catpt_dev *cdev) { int ret; ret = cdev->spec->power_up(cdev); if (ret) return ret; ret = catpt_dmac_probe(cdev); if (ret) { dev_err(cdev->dev, "DMAC probe failed: %d\n", ret); goto err_dmac_probe; } ret = catpt_first_boot_firmware(cdev); if (ret) { dev_err(cdev->dev, "first fw boot failed: %d\n", ret); goto err_boot_fw; } ret = catpt_register_plat_component(cdev); if (ret) { dev_err(cdev->dev, "register plat comp failed: %d\n", ret); goto err_boot_fw; } ret = catpt_register_board(cdev); if (ret) { dev_err(cdev->dev, "register board failed: %d\n", ret); goto err_reg_board; } /* reflect actual ADSP state in pm_runtime */ pm_runtime_set_active(cdev->dev); pm_runtime_set_autosuspend_delay(cdev->dev, 2000); pm_runtime_use_autosuspend(cdev->dev); pm_runtime_mark_last_busy(cdev->dev); pm_runtime_enable(cdev->dev); return 0; err_reg_board: snd_soc_unregister_component(cdev->dev); err_boot_fw: catpt_dmac_remove(cdev); err_dmac_probe: cdev->spec->power_down(cdev); return ret; } static void catpt_dev_init(struct catpt_dev *cdev, struct device *dev, const struct catpt_spec *spec) { cdev->dev = dev; cdev->spec = spec; init_completion(&cdev->fw_ready); INIT_LIST_HEAD(&cdev->stream_list); spin_lock_init(&cdev->list_lock); mutex_init(&cdev->clk_mutex); /* * Mark both device formats as uninitialized. Once corresponding * cpu_dai's pcm is created, proper values are assigned. */ cdev->devfmt[CATPT_SSP_IFACE_0].iface = UINT_MAX; cdev->devfmt[CATPT_SSP_IFACE_1].iface = UINT_MAX; catpt_ipc_init(&cdev->ipc, dev); catpt_sram_init(&cdev->dram, spec->host_dram_offset, catpt_dram_size(cdev)); catpt_sram_init(&cdev->iram, spec->host_iram_offset, catpt_iram_size(cdev)); } static int catpt_acpi_probe(struct platform_device *pdev) { const struct catpt_spec *spec; struct catpt_dev *cdev; struct device *dev = &pdev->dev; struct resource *res; int ret; spec = device_get_match_data(dev); if (!spec) return -ENODEV; cdev = devm_kzalloc(dev, sizeof(*cdev), GFP_KERNEL); if (!cdev) return -ENOMEM; catpt_dev_init(cdev, dev, spec); /* map DSP bar address */ cdev->lpe_ba = devm_platform_get_and_ioremap_resource(pdev, 0, &res); if (IS_ERR(cdev->lpe_ba)) return PTR_ERR(cdev->lpe_ba); cdev->lpe_base = res->start; /* map PCI bar address */ cdev->pci_ba = devm_platform_ioremap_resource(pdev, 1); if (IS_ERR(cdev->pci_ba)) return PTR_ERR(cdev->pci_ba); /* alloc buffer for storing DRAM context during dx transitions */ cdev->dxbuf_vaddr = dmam_alloc_coherent(dev, catpt_dram_size(cdev), &cdev->dxbuf_paddr, GFP_KERNEL); if (!cdev->dxbuf_vaddr) return -ENOMEM; ret = platform_get_irq(pdev, 0); if (ret < 0) return ret; cdev->irq = ret; platform_set_drvdata(pdev, cdev); ret = devm_request_threaded_irq(dev, cdev->irq, catpt_dsp_irq_handler, catpt_dsp_irq_thread, IRQF_SHARED, "AudioDSP", cdev); if (ret) return ret; return catpt_probe_components(cdev); } static int catpt_acpi_remove(struct platform_device *pdev) { struct catpt_dev *cdev = platform_get_drvdata(pdev); pm_runtime_disable(cdev->dev); snd_soc_unregister_component(cdev->dev); catpt_dmac_remove(cdev); cdev->spec->power_down(cdev); catpt_sram_free(&cdev->iram); catpt_sram_free(&cdev->dram); return 0; } static struct catpt_spec lpt_desc = { .machines = snd_soc_acpi_intel_haswell_machines, .core_id = 0x01, .host_dram_offset = 0x000000, .host_iram_offset = 0x080000, .host_shim_offset = 0x0E7000, .host_dma_offset = { 0x0F0000, 0x0F8000 }, .host_ssp_offset = { 0x0E8000, 0x0E9000 }, .dram_mask = LPT_VDRTCTL0_DSRAMPGE_MASK, .iram_mask = LPT_VDRTCTL0_ISRAMPGE_MASK, .pll_shutdown = lpt_dsp_pll_shutdown, .power_up = lpt_dsp_power_up, .power_down = lpt_dsp_power_down, }; static struct catpt_spec wpt_desc = { .machines = snd_soc_acpi_intel_broadwell_machines, .core_id = 0x02, .host_dram_offset = 0x000000, .host_iram_offset = 0x0A0000, .host_shim_offset = 0x0FB000, .host_dma_offset = { 0x0FE000, 0x0FF000 }, .host_ssp_offset = { 0x0FC000, 0x0FD000 }, .dram_mask = WPT_VDRTCTL0_DSRAMPGE_MASK, .iram_mask = WPT_VDRTCTL0_ISRAMPGE_MASK, .pll_shutdown = wpt_dsp_pll_shutdown, .power_up = wpt_dsp_power_up, .power_down = wpt_dsp_power_down, }; static const struct acpi_device_id catpt_ids[] = { { "INT33C8", (unsigned long)&lpt_desc }, { "INT3438", (unsigned long)&wpt_desc }, { } }; MODULE_DEVICE_TABLE(acpi, catpt_ids); static struct platform_driver catpt_acpi_driver = { .probe = catpt_acpi_probe, .remove = catpt_acpi_remove, .driver = { .name = "intel_catpt", .acpi_match_table = catpt_ids, .pm = &catpt_dev_pm, }, }; module_platform_driver(catpt_acpi_driver); MODULE_AUTHOR("Cezary Rojewski "); MODULE_DESCRIPTION("Intel LPT/WPT AudioDSP driver"); MODULE_LICENSE("GPL v2");