diff options
author | Simon Glass <sjg@chromium.org> | 2019-02-16 20:24:57 -0700 |
---|---|---|
committer | Bin Meng <bmeng.cn@gmail.com> | 2019-02-20 15:27:09 +0800 |
commit | 6744c0d6525e9fb9b5c7fc0d7b66c0d0cbdf6177 (patch) | |
tree | b221a414924b421d8a167b55ac229381deeedf3c /drivers/sound/ivybridge_sound.c | |
parent | ecc7973d1c4ba684d2e2750a948f341693c39093 (diff) |
sound: x86: link: Add sound support
Add sound support for link, using the HDA codec implementation.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'drivers/sound/ivybridge_sound.c')
-rw-r--r-- | drivers/sound/ivybridge_sound.c | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/drivers/sound/ivybridge_sound.c b/drivers/sound/ivybridge_sound.c new file mode 100644 index 0000000000..101046f9c2 --- /dev/null +++ b/drivers/sound/ivybridge_sound.c @@ -0,0 +1,137 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Intel HDA audio (Azalia) for ivybridge + * + * Originally from coreboot file bd82x6x/azalia.c + * + * Copyright (C) 2008 Advanced Micro Devices, Inc. + * Copyright (C) 2008-2009 coresystems GmbH + * Copyright (C) 2011 The ChromiumOS Authors. + * Copyright 2018 Google LLC + */ + +#define LOG_CATEGORY UCLASS_SOUND + +#include <common.h> +#include <dm.h> +#include <hda_codec.h> +#include <pch.h> +#include <sound.h> + +static int bd82x6x_azalia_probe(struct udevice *dev) +{ + struct pci_child_platdata *plat; + struct hda_codec_priv *priv; + struct udevice *pch; + u32 codec_mask; + int conf; + int ret; + + /* Only init after relocation */ + if (!(gd->flags & GD_FLG_RELOC)) + return 0; + + ret = hda_codec_init(dev); + if (ret) { + log_debug("Cannot set up HDA codec (err=%d)\n", ret); + return ret; + } + priv = dev_get_priv(dev); + + ret = uclass_first_device_err(UCLASS_PCH, &pch); + log_debug("PCH %p %s\n", pch, pch->name); + if (ret) + return ret; + + conf = pch_ioctl(pch, PCH_REQ_HDA_CONFIG, NULL, 0); + log_debug("conf = %x\n", conf); + if (conf >= 0) { + dm_pci_clrset_config32(dev, 0x120, 7 << 24 | 0xfe, + 1 << 24 | /* 2 << 24 for server */ + conf); + + dm_pci_clrset_config16(dev, 0x78, 0, 1 << 1); + } else { + log_debug("V1CTL disabled\n"); + } + dm_pci_clrset_config32(dev, 0x114, 0xfe, 0); + + /* Set VCi enable bit */ + dm_pci_clrset_config32(dev, 0x120, 0, 1U << 31); + + /* Enable HDMI codec */ + dm_pci_clrset_config32(dev, 0xc4, 0, 1 << 1); + dm_pci_clrset_config8(dev, 0x43, 0, 1 << 6); + + /* Additional programming steps */ + dm_pci_clrset_config32(dev, 0xc4, 0, 1 << 13); + dm_pci_clrset_config32(dev, 0xc4, 0, 1 << 10); + dm_pci_clrset_config32(dev, 0xd0, 1U << 31, 0); + + /* Additional step on Panther Point */ + plat = dev_get_parent_platdata(dev); + if (plat->device == PCI_DEVICE_ID_INTEL_PANTHERPOINT_HDA) + dm_pci_clrset_config32(dev, 0xc4, 0, 1 << 17); + + dm_pci_write_config8(dev, 0x3c, 0xa); /* unused? */ + + /* Audio Control: Select Azalia mode */ + dm_pci_clrset_config8(dev, 0x40, 0, 1); + dm_pci_clrset_config8(dev, 0x4d, 1 << 7, 0); /* Docking not supported */ + codec_mask = hda_codec_detect(priv->regs); + log_debug("codec_mask = %02x\n", codec_mask); + + if (codec_mask) { + ret = hda_codecs_init(dev, priv->regs, codec_mask); + if (ret) { + log_err("Codec init failed (err=%d)\n", ret); + return ret; + } + } + + /* Enable dynamic clock gating */ + dm_pci_clrset_config8(dev, 0x43, 7, BIT(2) | BIT(0)); + + ret = hda_codec_finish_init(dev); + if (ret) { + log_debug("Cannot set up HDA codec (err=%d)\n", ret); + return ret; + } + + return 0; +} + +static int bd82x6x_azalia_setup(struct udevice *dev) +{ + return 0; +} + +int bd82x6x_azalia_start_beep(struct udevice *dev, int frequency_hz) +{ + return hda_codec_start_beep(dev, frequency_hz); +} + +int bd82x6x_azalia_stop_beep(struct udevice *dev) +{ + return hda_codec_stop_beep(dev); +} + +static const struct sound_ops bd82x6x_azalia_ops = { + .setup = bd82x6x_azalia_setup, + .start_beep = bd82x6x_azalia_start_beep, + .stop_beep = bd82x6x_azalia_stop_beep, +}; + +static const struct udevice_id bd82x6x_azalia_ids[] = { + { .compatible = "intel,hd-audio" }, + { } +}; + +U_BOOT_DRIVER(bd82x6x_azalia_drv) = { + .name = "bd82x6x-hda", + .id = UCLASS_SOUND, + .of_match = bd82x6x_azalia_ids, + .probe = bd82x6x_azalia_probe, + .ops = &bd82x6x_azalia_ops, + .priv_auto_alloc_size = sizeof(struct hda_codec_priv), +}; |