On Thu, May 21, 2015 at 04:52:32PM +0200, Michele Curti wrote:
Hi all, I'm going to *try* to "write" a driver for the sound card on my new laptop, an asus x205ta.
To be fair I have almost no experience but I'm hoping that all the code is already present and it only needs some adaptations.
The cpu is a intel bay trail z3735f, the sound card is a realtek rt5648 that has the same product Id of the rt5645 (0x6308).
I see in kernel sources:
- the codec driver sound/soc/codecs/rt5645.c
- a baytrail board that uses the rt5640 sound/soc/intel/boards/byt-rt5640.c
- a braswell board that uses the rt5645 sound/soc/intel/boards/cht_bsw_rt5645.c
What do you think? Is it feasible, given a good amount of free-time? :p
Thanks, Michele
So I started.. :) At the end of the email there is the patch.
What I did: - copied the board file byt-rt5640.c to byt-rt5645.c - find&replace 5640->5645 in byt-rt5645.c - added acpi device id to detect the sound card - added kernel config SND_SOC_INTEL_BYT_RT5645_MACH to select the driver
Nothing works.
But at least the right modules are loaded it seems.. Here the output of "lsmod | grep snd": snd_soc_sst_baytrail_pcm 24576 0 snd_soc_sst_ipc 16384 1 snd_soc_sst_baytrail_pcm snd_soc_sst_dsp 36864 2 snd_soc_sst_baytrail_pcm,snd_soc_sst_ipc snd_soc_sst_byt_rt5645_mach 16384 0 snd_soc_rt5645 94208 0 regmap_i2c 16384 1 snd_soc_rt5645 snd_soc_rl6231 16384 1 snd_soc_rt5645 snd_soc_core 159744 3 snd_soc_rt5645,snd_soc_sst_baytrail_pcm,snd_soc_sst_byt_rt5645_mach snd_compress 20480 1 snd_soc_core dw_dmac_core 28672 2 dw_dmac,snd_soc_sst_dsp snd_pcm 90112 3 snd_soc_rt5645,snd_soc_core,snd_soc_sst_baytrail_pcm snd_timer 28672 1 snd_pcm snd 57344 4 snd_soc_core,snd_timer,snd_pcm,snd_compress soundcore 16384 1 snd snd_soc_sst_acpi 16384 0
And dmesg tells me: [ +1.386847] rt5645 i2c-10EC5648:00: Failed to reguest IRQ: -22 [ +0.000102] rt5645 i2c-10EC5648:00: Fail gpio_request hp_det_gpio [ +0.000094] rt5645 i2c-10EC5648:00: Fail gpio_direction hp_det_gpio [ +0.088989] byt-rt5645 byt-rt5645: ASoC: CPU DAI baytrail-pcm-audio not registered [ +0.062539] byt-rt5645 byt-rt5645: ASoC: CPU DAI baytrail-pcm-audio not registered [ +0.021995] byt-rt5645 byt-rt5645: ASoC: CPU DAI baytrail-pcm-audio not registered [ +0.001828] byt-rt5645 byt-rt5645: ASoC: CPU DAI baytrail-pcm-audio not registered [ +0.016646] i2c_hid i2c-PDEC3393:00: error in i2c_hid_init_report size:7 / ret_size:4 [ +0.002541] byt-rt5645 byt-rt5645: ASoC: CPU DAI baytrail-pcm-audio not registered [ +0.004755] brcmfmac: brcmf_sdio_drivestrengthinit: No SDIO Drive strength init done for chip 43340 rev 2 pmurev 20 [ +0.003586] byt-rt5645 byt-rt5645: ASoC: CPU DAI baytrail-pcm-audio not registered [ +0.002844] byt-rt5645 byt-rt5645: ASoC: CPU DAI baytrail-pcm-audio not registered [ +0.001705] byt-rt5645 byt-rt5645: ASoC: CPU DAI baytrail-pcm-audio not registered [ +0.011199] i2c_hid i2c-PDEC3393:00: error in i2c_hid_init_report size:19 / ret_size:4 [ +0.018094] byt-rt5645 byt-rt5645: ASoC: CPU DAI baytrail-pcm-audio not registered [ +0.067913] i2c_hid i2c-ELAN0100:00: error in i2c_hid_init_report size:633 / ret_size:7 [ +0.004378] byt-rt5645 byt-rt5645: ASoC: CPU DAI baytrail-pcm-audio not registered [ +0.000145] byt-rt5645 byt-rt5645: ASoC: CPU DAI baytrail-pcm-audio not registered [ +0.000980] i2c_hid i2c-ELAN0100:00: error in i2c_hid_init_report size:131 / ret_size:7 [ +0.000949] byt-rt5645 byt-rt5645: ASoC: CPU DAI baytrail-pcm-audio not registered [ +0.020845] (NULL device *): ipc: error DSP boot timeout [ +0.213465] byt-rt5645 byt-rt5645: ASoC: CPU DAI baytrail-pcm-audio not registered [ +0.036706] byt-rt5645 byt-rt5645: ASoC: CPU DAI baytrail-pcm-audio not registered [ +0.008144] byt-rt5645 byt-rt5645: ASoC: CPU DAI baytrail-pcm-audio not registered [ +1.811435] brcmfmac: brcmf_c_preinit_dcmds: Firmware version = wl0: Jun 17 2014 11:48:43 version 6.10.190.49 (r485840) FWID 01-8744bcd2 [ +0.014526] brcmfmac: brcmf_cfg80211_reg_notifier: not a ISO3166 code [ +0.092535] brcmfmac: brcmf_add_if: ERROR: netdev:wlan0 already exists [ +0.000011] brcmfmac: brcmf_add_if: ignore IF event
For now I'm at a standstill and I don't understand a lot of things... I will read the code.. :)
Regards, Michele
Signed-off-by: Michele Curti michele.curti@gmail.com --- sound/soc/codecs/rt5645.c | 2 + sound/soc/intel/Kconfig | 9 ++ sound/soc/intel/boards/Makefile | 2 + sound/soc/intel/boards/byt-rt5645.c | 222 ++++++++++++++++++++++++++++++++++++ sound/soc/intel/common/sst-acpi.c | 1 + 5 files changed, 236 insertions(+) create mode 100644 sound/soc/intel/boards/byt-rt5645.c
diff --git a/sound/soc/codecs/rt5645.c b/sound/soc/codecs/rt5645.c index be4d741..3692569 100644 --- a/sound/soc/codecs/rt5645.c +++ b/sound/soc/codecs/rt5645.c @@ -2652,6 +2652,7 @@ static const struct regmap_config rt5645_regmap = {
static const struct i2c_device_id rt5645_i2c_id[] = { { "rt5645", 0 }, + { "rt5648", 0 }, { "rt5650", 0 }, { } }; @@ -2660,6 +2661,7 @@ MODULE_DEVICE_TABLE(i2c, rt5645_i2c_id); #ifdef CONFIG_ACPI static struct acpi_device_id rt5645_acpi_match[] = { { "10EC5645", 0 }, + { "10EC5648", 0 }, { "10EC5650", 0 }, {}, }; diff --git a/sound/soc/intel/Kconfig b/sound/soc/intel/Kconfig index ee03dbd..ad324c0 100644 --- a/sound/soc/intel/Kconfig +++ b/sound/soc/intel/Kconfig @@ -65,6 +65,15 @@ config SND_SOC_INTEL_BYT_RT5640_MACH This adds audio driver for Intel Baytrail platform based boards with the RT5640 audio codec.
+config SND_SOC_INTEL_BYT_RT5645_MACH + tristate "ASoC Audio driver for Intel Baytrail with RT5645 codec" + depends on SND_SOC_INTEL_SST && X86_INTEL_LPSS && I2C + select SND_SOC_INTEL_BAYTRAIL + select SND_SOC_RT5645 + help + This adds audio driver for Intel Baytrail platform based boards + with the RT5645 audio codec. + config SND_SOC_INTEL_BYT_MAX98090_MACH tristate "ASoC Audio driver for Intel Baytrail with MAX98090 codec" depends on SND_SOC_INTEL_SST && X86_INTEL_LPSS && I2C diff --git a/sound/soc/intel/boards/Makefile b/sound/soc/intel/boards/Makefile index f8237f0..bcb082a 100644 --- a/sound/soc/intel/boards/Makefile +++ b/sound/soc/intel/boards/Makefile @@ -1,5 +1,6 @@ snd-soc-sst-haswell-objs := haswell.o snd-soc-sst-byt-rt5640-mach-objs := byt-rt5640.o +snd-soc-sst-byt-rt5645-mach-objs := byt-rt5645.o snd-soc-sst-byt-max98090-mach-objs := byt-max98090.o snd-soc-sst-broadwell-objs := broadwell.o snd-soc-sst-bytcr-rt5640-objs := bytcr_rt5640.o @@ -8,6 +9,7 @@ snd-soc-sst-cht-bsw-rt5645-objs := cht_bsw_rt5645.o
obj-$(CONFIG_SND_SOC_INTEL_HASWELL_MACH) += snd-soc-sst-haswell.o obj-$(CONFIG_SND_SOC_INTEL_BYT_RT5640_MACH) += snd-soc-sst-byt-rt5640-mach.o +obj-$(CONFIG_SND_SOC_INTEL_BYT_RT5645_MACH) += snd-soc-sst-byt-rt5645-mach.o obj-$(CONFIG_SND_SOC_INTEL_BYT_MAX98090_MACH) += snd-soc-sst-byt-max98090-mach.o obj-$(CONFIG_SND_SOC_INTEL_BROADWELL_MACH) += snd-soc-sst-broadwell.o obj-$(CONFIG_SND_SOC_INTEL_BYTCR_RT5640_MACH) += snd-soc-sst-bytcr-rt5640.o diff --git a/sound/soc/intel/boards/byt-rt5645.c b/sound/soc/intel/boards/byt-rt5645.c new file mode 100644 index 0000000..5bdb56e --- /dev/null +++ b/sound/soc/intel/boards/byt-rt5645.c @@ -0,0 +1,222 @@ +/* + * Intel Baytrail SST RT5645 machine driver + * Copyright (c) 2014, Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + */ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/acpi.h> +#include <linux/device.h> +#include <linux/dmi.h> +#include <linux/slab.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/jack.h> +#include "../../codecs/rt5645.h" + +#include "../common/sst-dsp.h" + +static const struct snd_soc_dapm_widget byt_rt5645_widgets[] = { + SND_SOC_DAPM_HP("Headphone", NULL), + SND_SOC_DAPM_MIC("Headset Mic", NULL), + SND_SOC_DAPM_MIC("Internal Mic", NULL), + SND_SOC_DAPM_SPK("Speaker", NULL), +}; + +static const struct snd_soc_dapm_route byt_rt5645_audio_map[] = { + {"Headset Mic", NULL, "MICBIAS1"}, + {"IN2P", NULL, "Headset Mic"}, + {"Headphone", NULL, "HPOL"}, + {"Headphone", NULL, "HPOR"}, + {"Speaker", NULL, "SPOLP"}, + {"Speaker", NULL, "SPOLN"}, + {"Speaker", NULL, "SPORP"}, + {"Speaker", NULL, "SPORN"}, +}; + +static const struct snd_soc_dapm_route byt_rt5645_intmic_dmic1_map[] = { + {"DMIC1", NULL, "Internal Mic"}, +}; + +static const struct snd_soc_dapm_route byt_rt5645_intmic_dmic2_map[] = { + {"DMIC2", NULL, "Internal Mic"}, +}; + +static const struct snd_soc_dapm_route byt_rt5645_intmic_in1_map[] = { + {"Internal Mic", NULL, "MICBIAS1"}, + {"IN1P", NULL, "Internal Mic"}, +}; + +enum { + BYT_RT5645_DMIC1_MAP, + BYT_RT5645_DMIC2_MAP, + BYT_RT5645_IN1_MAP, +}; + +#define BYT_RT5645_MAP(quirk) ((quirk) & 0xff) +#define BYT_RT5645_DMIC_EN BIT(16) + +static unsigned long byt_rt5645_quirk = BYT_RT5645_DMIC1_MAP | + BYT_RT5645_DMIC_EN; + +static const struct snd_kcontrol_new byt_rt5645_controls[] = { + SOC_DAPM_PIN_SWITCH("Headphone"), + SOC_DAPM_PIN_SWITCH("Headset Mic"), + SOC_DAPM_PIN_SWITCH("Internal Mic"), + SOC_DAPM_PIN_SWITCH("Speaker"), +}; + +static int byt_rt5645_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *codec_dai = rtd->codec_dai; + int ret; + + ret = snd_soc_dai_set_sysclk(codec_dai, RT5645_SCLK_S_PLL1, + params_rate(params) * 256, + SND_SOC_CLOCK_IN); + if (ret < 0) { + dev_err(codec_dai->dev, "can't set codec clock %d\n", ret); + return ret; + } + ret = snd_soc_dai_set_pll(codec_dai, 0, RT5645_PLL1_S_BCLK1, + params_rate(params) * 64, + params_rate(params) * 256); + if (ret < 0) { + dev_err(codec_dai->dev, "can't set codec pll: %d\n", ret); + return ret; + } + return 0; +} + +static int byt_rt5645_quirk_cb(const struct dmi_system_id *id) +{ + byt_rt5645_quirk = (unsigned long)id->driver_data; + return 1; +} + +static const struct dmi_system_id byt_rt5645_quirk_table[] = { + { + .callback = byt_rt5645_quirk_cb, + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), + DMI_MATCH(DMI_PRODUCT_NAME, "X205TA"), + }, + .driver_data = (unsigned long *)BYT_RT5645_IN1_MAP, + }, + { + .callback = byt_rt5645_quirk_cb, + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "DellInc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Venue 8 Pro 5830"), + }, + .driver_data = (unsigned long *)(BYT_RT5645_DMIC2_MAP | + BYT_RT5645_DMIC_EN), + }, + {} +}; + +static int byt_rt5645_init(struct snd_soc_pcm_runtime *runtime) +{ + int ret; + struct snd_soc_card *card = runtime->card; + const struct snd_soc_dapm_route *custom_map; + int num_routes; + + card->dapm.idle_bias_off = true; + + ret = snd_soc_add_card_controls(card, byt_rt5645_controls, + ARRAY_SIZE(byt_rt5645_controls)); + if (ret) { + dev_err(card->dev, "unable to add card controls\n"); + return ret; + } + + dmi_check_system(byt_rt5645_quirk_table); + switch (BYT_RT5645_MAP(byt_rt5645_quirk)) { + case BYT_RT5645_IN1_MAP: + custom_map = byt_rt5645_intmic_in1_map; + num_routes = ARRAY_SIZE(byt_rt5645_intmic_in1_map); + break; + case BYT_RT5645_DMIC2_MAP: + custom_map = byt_rt5645_intmic_dmic2_map; + num_routes = ARRAY_SIZE(byt_rt5645_intmic_dmic2_map); + break; + default: + custom_map = byt_rt5645_intmic_dmic1_map; + num_routes = ARRAY_SIZE(byt_rt5645_intmic_dmic1_map); + } + + ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes); + if (ret) + return ret; + + snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone"); + snd_soc_dapm_ignore_suspend(&card->dapm, "Speaker"); + + return ret; +} + +static struct snd_soc_ops byt_rt5645_ops = { + .hw_params = byt_rt5645_hw_params, +}; + +static struct snd_soc_dai_link byt_rt5645_dais[] = { + { + .name = "Baytrail Audio", + .stream_name = "Audio", + .cpu_dai_name = "baytrail-pcm-audio", + .codec_dai_name = "rt5645-aif1", + .codec_name = "i2c-10EC56458:00", + .platform_name = "baytrail-pcm-audio", + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS, + .init = byt_rt5645_init, + .ops = &byt_rt5645_ops, + }, +}; + +static struct snd_soc_card byt_rt5645_card = { + .name = "byt-rt5645", + .dai_link = byt_rt5645_dais, + .num_links = ARRAY_SIZE(byt_rt5645_dais), + .dapm_widgets = byt_rt5645_widgets, + .num_dapm_widgets = ARRAY_SIZE(byt_rt5645_widgets), + .dapm_routes = byt_rt5645_audio_map, + .num_dapm_routes = ARRAY_SIZE(byt_rt5645_audio_map), + .fully_routed = true, +}; + +static int byt_rt5645_probe(struct platform_device *pdev) +{ + struct snd_soc_card *card = &byt_rt5645_card; + + card->dev = &pdev->dev; + return devm_snd_soc_register_card(&pdev->dev, card); +} + +static struct platform_driver byt_rt5645_audio = { + .probe = byt_rt5645_probe, + .driver = { + .name = "byt-rt5645", + .pm = &snd_soc_pm_ops, + }, +}; +module_platform_driver(byt_rt5645_audio) + +MODULE_DESCRIPTION("ASoC Intel(R) Baytrail Machine driver"); +MODULE_AUTHOR("Omair Md Abdullah, Jarkko Nikula"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:byt-rt5645"); diff --git a/sound/soc/intel/common/sst-acpi.c b/sound/soc/intel/common/sst-acpi.c index 42f293f..bb28e84 100644 --- a/sound/soc/intel/common/sst-acpi.c +++ b/sound/soc/intel/common/sst-acpi.c @@ -248,6 +248,7 @@ static struct sst_acpi_desc sst_acpi_broadwell_desc = {
static struct sst_acpi_mach baytrail_machines[] = { { "10EC5640", "byt-rt5640", "intel/fw_sst_0f28.bin-48kHz_i2s_master" }, + { "10EC5648", "byt-rt5645", "intel/fw_sst_0f28.bin-48kHz_i2s_master" }, { "193C9890", "byt-max98090", "intel/fw_sst_0f28.bin-48kHz_i2s_master" }, {} };