From: zhengxing <[email protected]> In most cases, we maybe use simple-card as generic machine driver on next kernel, but there are some issue that jack detection and widgets extandable on simple-card.
Own machine drvier can select one valid codec from supported codecs, and add needful function from dts on rockchip platform. Signed-off-by: zhengxing <[email protected]> --- sound/soc/rockchip/Kconfig | 7 + sound/soc/rockchip/Makefile | 5 + sound/soc/rockchip/rockchip_machine_driver.c | 210 ++++++++++++++++++++++++++ sound/soc/rockchip/rockchip_machine_driver.h | 30 ++++ 4 files changed, 252 insertions(+) create mode 100644 sound/soc/rockchip/rockchip_machine_driver.c create mode 100644 sound/soc/rockchip/rockchip_machine_driver.h diff --git a/sound/soc/rockchip/Kconfig b/sound/soc/rockchip/Kconfig index e181826..e3f51cf 100644 --- a/sound/soc/rockchip/Kconfig +++ b/sound/soc/rockchip/Kconfig @@ -14,3 +14,10 @@ config SND_SOC_ROCKCHIP_I2S Say Y or M if you want to add support for I2S driver for Rockchip I2S device. The device supports upto maximum of 8 channels each for play and record. + +config SND_SOC_ROCKCHIP_MACHINE + tristate "Rockchip Generic Machine Driver" + depends on CLKDEV_LOOKUP && SND_SOC_ROCKCHIP + help + Say Y or M if you want to add support for Machine driver + for Rockchip I2S device. diff --git a/sound/soc/rockchip/Makefile b/sound/soc/rockchip/Makefile index b921909..47d7c84 100644 --- a/sound/soc/rockchip/Makefile +++ b/sound/soc/rockchip/Makefile @@ -2,3 +2,8 @@ snd-soc-i2s-objs := rockchip_i2s.o obj-$(CONFIG_SND_SOC_ROCKCHIP_I2S) += snd-soc-i2s.o + +# ROCKCHIP Machine Support +snd-soc-rockchip-machine-objs := rockchip_machine_driver.o + +obj-$(CONFIG_SND_SOC_ROCKCHIP_MACHINE) += snd-soc-rockchip-machine.o diff --git a/sound/soc/rockchip/rockchip_machine_driver.c b/sound/soc/rockchip/rockchip_machine_driver.c new file mode 100644 index 0000000..34cae3f --- /dev/null +++ b/sound/soc/rockchip/rockchip_machine_driver.c @@ -0,0 +1,210 @@ +/* + * Rockchip machine ASoC driver for boards for multi-codecs. + * + * Copyright (c) 2015, ROCKCHIP CORPORATION. All rights reserved. + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + * + */ + +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/slab.h> +#include <linux/gpio.h> +#include <linux/of_gpio.h> +#include <linux/delay.h> +#include <sound/core.h> +#include <sound/jack.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> + +#include "rockchip_i2s.h" +#include "rockchip_machine_driver.h" + +#define DRV_NAME "rockchip-snd-machine" + +/* the sound cards of rockchp supports. */ +static struct rk_snd_soc_cards rk_snd_cards[] = { +}; + +static int snd_rk_mc_preinit(void) +{ + int id, ret; + + for (id = 0; id < ARRAY_SIZE(rk_snd_cards); ++id) { + struct rk_snd_soc_cards *rk_snd_card = &rk_snd_cards[id]; + + ret = rk_snd_card->preinit(rk_snd_card); + if (ret < 0) + pr_warn("card: %s preinit failed!\n", + rk_snd_card->name); + } + + return 0; +} + +static int snd_rk_mc_probe(struct platform_device *pdev) +{ + struct rk_mc_private *drv; + struct snd_soc_card *card; + struct device_node *parent = pdev->dev.of_node; + struct device_node *node; + int found = 0; + int ret; + + /* pre-init sound cards that rockchip supports. */ + snd_rk_mc_preinit(); + + drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_KERNEL); + if (!drv) + return -ENOMEM; + + /* attach matched codec. */ + for_each_available_child_of_node(parent, node) { + int id; + + for (id = 0; id < ARRAY_SIZE(rk_snd_cards); ++id) { + struct rk_snd_soc_cards *rk_snd_card = + &rk_snd_cards[id]; + + ret = of_device_is_compatible(node, + rk_snd_card->compatible); + if (ret) { + /* match compatible. */ + card = rk_snd_card->card; + if (!card || !card->dai_link) { + dev_err(&pdev->dev, + "card or dai_link is null!\n"); + continue; + } + + card->dev = &pdev->dev; + platform_set_drvdata(pdev, card); + snd_soc_card_set_drvdata(card, drv); + + /* set dai link node. */ + card->dai_link->codec_of_node = + of_parse_phandle(node, + "rockchip,audio-codec", + 0); + if (!card->dai_link->codec_of_node) { + dev_err(&pdev->dev, + "rockchip,audio-codec invalid\n"); + continue; + } + + card->dai_link->cpu_of_node = + of_parse_phandle(node, + "rockchip,i2s-controller", + 0); + if (!card->dai_link->cpu_of_node) { + dev_err(&pdev->dev, + "rockchip,i2s-controller invalid\n"); + continue; + } + + if (card->aux_dev) { + /* set aux_dev for max98090. */ + card->aux_dev->codec_of_node = + of_parse_phandle(node, + "rockchip,headset-codec", + 0); + if (!card->aux_dev->codec_of_node) { + dev_err(&pdev->dev, + "rockchip,headset-codec invalid\n"); + continue; + } + } + + card->dai_link->platform_of_node = + card->dai_link->cpu_of_node; + + ret = snd_soc_of_parse_card_name(card, + "rockchip,model"); + if (ret) + continue; + + /* register the soc card. */ + ret = snd_soc_register_card(card); + if (!ret) { + /* + * register sound card ok, + * and found matched codec. + */ + dev_info(&pdev->dev, + "card:[%s] register success!\n", + card->name); + + found = 1; + goto found_codec; + } else { + /* register sound card failed */ + dev_err(&pdev->dev, + "card:[%s] register failed(%d)!\n", + card->name, ret); + + card->dev = NULL; + } + } + } + } + + if (!found) { + dev_err(&pdev->dev, + "Not found matched codec!\n"); + return -ENODEV; + } + +found_codec: + dev_info(&pdev->dev, + "Found matched codec: %s!\n", + card->name); + + return 0; +} + +static int snd_rk_mc_remove(struct platform_device *pdev) +{ + struct snd_soc_card *card = platform_get_drvdata(pdev); + + snd_soc_card_set_drvdata(card, NULL); + snd_soc_unregister_card(card); + platform_set_drvdata(pdev, NULL); + + return 0; +} + +static const struct of_device_id rockchip_machine_of_match[] = { + { .compatible = "rockchip,rockchip-audio-machine", }, + {}, +}; + +static struct platform_driver snd_rk_mc_driver = { + .probe = snd_rk_mc_probe, + .remove = snd_rk_mc_remove, + .driver = { + .name = DRV_NAME, + .owner = THIS_MODULE, + .pm = &snd_soc_pm_ops, + .of_match_table = rockchip_machine_of_match, + }, +}; + +module_platform_driver(snd_rk_mc_driver); + +MODULE_AUTHOR("Xing Zheng <[email protected]>"); +MODULE_DESCRIPTION("Rockchip general machine ASoC driver"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:" DRV_NAME); +MODULE_DEVICE_TABLE(of, rockchip_machine_of_match); diff --git a/sound/soc/rockchip/rockchip_machine_driver.h b/sound/soc/rockchip/rockchip_machine_driver.h new file mode 100644 index 0000000..39a7a77 --- /dev/null +++ b/sound/soc/rockchip/rockchip_machine_driver.h @@ -0,0 +1,30 @@ +/* + * sound/soc/rockchip/rockchip_machine_driver.h + * + * ALSA SoC Audio Layer - Rockchip Machine driver + * + * Copyright (c) 2015 Rockchip Electronics Co. Ltd. + * Author: Xing Zheng <[email protected]> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __ROCKCHIP_MACHINE_DRIVER_H__ +#define __ROCKCHIP_MACHINE_DRIVER_H__ + +struct rk_mc_private { + struct snd_soc_jack headphone_jack; + struct snd_soc_jack mic_jack; + struct snd_soc_jack btn_jack; +}; + +struct rk_snd_soc_cards { + char name[32]; + char compatible[128]; + struct snd_soc_card *card; + int (*preinit)(struct rk_snd_soc_cards *soc_card); +}; + +#endif /* __ROCKCHIP_MACHINE_DRIVER_H__ */ -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
