From 871480933a1c28f8a9fed4c4d34d06c439a7a422 Mon Sep 17 00:00:00 2001 From: Srikant Patnaik Date: Sun, 11 Jan 2015 12:28:04 +0530 Subject: Moved, renamed, and deleted files The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure. --- ANDROID_3.4.5/sound/soc/fsl/p1022_ds.c | 601 --------------------------------- 1 file changed, 601 deletions(-) delete mode 100644 ANDROID_3.4.5/sound/soc/fsl/p1022_ds.c (limited to 'ANDROID_3.4.5/sound/soc/fsl/p1022_ds.c') diff --git a/ANDROID_3.4.5/sound/soc/fsl/p1022_ds.c b/ANDROID_3.4.5/sound/soc/fsl/p1022_ds.c deleted file mode 100644 index 982a1c94..00000000 --- a/ANDROID_3.4.5/sound/soc/fsl/p1022_ds.c +++ /dev/null @@ -1,601 +0,0 @@ -/** - * Freescale P1022DS ALSA SoC Machine driver - * - * Author: Timur Tabi - * - * Copyright 2010 Freescale Semiconductor, Inc. - * - * This file is licensed under the terms of the GNU General Public License - * version 2. This program is licensed "as is" without any warranty of any - * kind, whether express or implied. - */ - -#include -#include -#include -#include -#include -#include -#include - -#include "fsl_dma.h" -#include "fsl_ssi.h" - -/* P1022-specific PMUXCR and DMUXCR bit definitions */ - -#define CCSR_GUTS_PMUXCR_UART0_I2C1_MASK 0x0001c000 -#define CCSR_GUTS_PMUXCR_UART0_I2C1_UART0_SSI 0x00010000 -#define CCSR_GUTS_PMUXCR_UART0_I2C1_SSI 0x00018000 - -#define CCSR_GUTS_PMUXCR_SSI_DMA_TDM_MASK 0x00000c00 -#define CCSR_GUTS_PMUXCR_SSI_DMA_TDM_SSI 0x00000000 - -#define CCSR_GUTS_DMUXCR_PAD 1 /* DMA controller/channel set to pad */ -#define CCSR_GUTS_DMUXCR_SSI 2 /* DMA controller/channel set to SSI */ - -/* - * Set the DMACR register in the GUTS - * - * The DMACR register determines the source of initiated transfers for each - * channel on each DMA controller. Rather than have a bunch of repetitive - * macros for the bit patterns, we just have a function that calculates - * them. - * - * guts: Pointer to GUTS structure - * co: The DMA controller (0 or 1) - * ch: The channel on the DMA controller (0, 1, 2, or 3) - * device: The device to set as the target (CCSR_GUTS_DMUXCR_xxx) - */ -static inline void guts_set_dmuxcr(struct ccsr_guts __iomem *guts, - unsigned int co, unsigned int ch, unsigned int device) -{ - unsigned int shift = 16 + (8 * (1 - co) + 2 * (3 - ch)); - - clrsetbits_be32(&guts->dmuxcr, 3 << shift, device << shift); -} - -/* There's only one global utilities register */ -static phys_addr_t guts_phys; - -#define DAI_NAME_SIZE 32 - -/** - * machine_data: machine-specific ASoC device data - * - * This structure contains data for a single sound platform device on an - * P1022 DS. Some of the data is taken from the device tree. - */ -struct machine_data { - struct snd_soc_dai_link dai[2]; - struct snd_soc_card card; - unsigned int dai_format; - unsigned int codec_clk_direction; - unsigned int cpu_clk_direction; - unsigned int clk_frequency; - unsigned int ssi_id; /* 0 = SSI1, 1 = SSI2, etc */ - unsigned int dma_id[2]; /* 0 = DMA1, 1 = DMA2, etc */ - unsigned int dma_channel_id[2]; /* 0 = ch 0, 1 = ch 1, etc*/ - char codec_name[DAI_NAME_SIZE]; - char platform_name[2][DAI_NAME_SIZE]; /* One for each DMA channel */ -}; - -/** - * p1022_ds_machine_probe: initialize the board - * - * This function is used to initialize the board-specific hardware. - * - * Here we program the DMACR and PMUXCR registers. - */ -static int p1022_ds_machine_probe(struct snd_soc_card *card) -{ - struct machine_data *mdata = - container_of(card, struct machine_data, card); - struct ccsr_guts __iomem *guts; - - guts = ioremap(guts_phys, sizeof(struct ccsr_guts)); - if (!guts) { - dev_err(card->dev, "could not map global utilities\n"); - return -ENOMEM; - } - - /* Enable SSI Tx signal */ - clrsetbits_be32(&guts->pmuxcr, CCSR_GUTS_PMUXCR_UART0_I2C1_MASK, - CCSR_GUTS_PMUXCR_UART0_I2C1_UART0_SSI); - - /* Enable SSI Rx signal */ - clrsetbits_be32(&guts->pmuxcr, CCSR_GUTS_PMUXCR_SSI_DMA_TDM_MASK, - CCSR_GUTS_PMUXCR_SSI_DMA_TDM_SSI); - - /* Enable DMA Channel for SSI */ - guts_set_dmuxcr(guts, mdata->dma_id[0], mdata->dma_channel_id[0], - CCSR_GUTS_DMUXCR_SSI); - - guts_set_dmuxcr(guts, mdata->dma_id[1], mdata->dma_channel_id[1], - CCSR_GUTS_DMUXCR_SSI); - - iounmap(guts); - - return 0; -} - -/** - * p1022_ds_startup: program the board with various hardware parameters - * - * This function takes board-specific information, like clock frequencies - * and serial data formats, and passes that information to the codec and - * transport drivers. - */ -static int p1022_ds_startup(struct snd_pcm_substream *substream) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct machine_data *mdata = - container_of(rtd->card, struct machine_data, card); - struct device *dev = rtd->card->dev; - int ret = 0; - - /* Tell the codec driver what the serial protocol is. */ - ret = snd_soc_dai_set_fmt(rtd->codec_dai, mdata->dai_format); - if (ret < 0) { - dev_err(dev, "could not set codec driver audio format\n"); - return ret; - } - - /* - * Tell the codec driver what the MCLK frequency is, and whether it's - * a slave or master. - */ - ret = snd_soc_dai_set_sysclk(rtd->codec_dai, 0, mdata->clk_frequency, - mdata->codec_clk_direction); - if (ret < 0) { - dev_err(dev, "could not set codec driver clock params\n"); - return ret; - } - - return 0; -} - -/** - * p1022_ds_machine_remove: Remove the sound device - * - * This function is called to remove the sound device for one SSI. We - * de-program the DMACR and PMUXCR register. - */ -static int p1022_ds_machine_remove(struct snd_soc_card *card) -{ - struct machine_data *mdata = - container_of(card, struct machine_data, card); - struct ccsr_guts __iomem *guts; - - guts = ioremap(guts_phys, sizeof(struct ccsr_guts)); - if (!guts) { - dev_err(card->dev, "could not map global utilities\n"); - return -ENOMEM; - } - - /* Restore the signal routing */ - clrbits32(&guts->pmuxcr, CCSR_GUTS_PMUXCR_UART0_I2C1_MASK); - clrbits32(&guts->pmuxcr, CCSR_GUTS_PMUXCR_SSI_DMA_TDM_MASK); - guts_set_dmuxcr(guts, mdata->dma_id[0], mdata->dma_channel_id[0], 0); - guts_set_dmuxcr(guts, mdata->dma_id[1], mdata->dma_channel_id[1], 0); - - iounmap(guts); - - return 0; -} - -/** - * p1022_ds_ops: ASoC machine driver operations - */ -static struct snd_soc_ops p1022_ds_ops = { - .startup = p1022_ds_startup, -}; - -/** - * get_node_by_phandle_name - get a node by its phandle name - * - * This function takes a node, the name of a property in that node, and a - * compatible string. Assuming the property is a phandle to another node, - * it returns that node, (optionally) if that node is compatible. - * - * If the property is not a phandle, or the node it points to is not compatible - * with the specific string, then NULL is returned. - */ -static struct device_node *get_node_by_phandle_name(struct device_node *np, - const char *name, const char *compatible) -{ - np = of_parse_phandle(np, name, 0); - if (!np) - return NULL; - - if (!of_device_is_compatible(np, compatible)) { - of_node_put(np); - return NULL; - } - - return np; -} - -/** - * get_parent_cell_index -- return the cell-index of the parent of a node - * - * Return the value of the cell-index property of the parent of the given - * node. This is used for DMA channel nodes that need to know the DMA ID - * of the controller they are on. - */ -static int get_parent_cell_index(struct device_node *np) -{ - struct device_node *parent = of_get_parent(np); - const u32 *iprop; - int ret = -1; - - if (!parent) - return -1; - - iprop = of_get_property(parent, "cell-index", NULL); - if (iprop) - ret = be32_to_cpup(iprop); - - of_node_put(parent); - - return ret; -} - -/** - * codec_node_dev_name - determine the dev_name for a codec node - * - * This function determines the dev_name for an I2C node. This is the name - * that would be returned by dev_name() if this device_node were part of a - * 'struct device' It's ugly and hackish, but it works. - * - * The dev_name for such devices include the bus number and I2C address. For - * example, "cs4270-codec.0-004f". - */ -static int codec_node_dev_name(struct device_node *np, char *buf, size_t len) -{ - const u32 *iprop; - int addr; - char temp[DAI_NAME_SIZE]; - struct i2c_client *i2c; - - of_modalias_node(np, temp, DAI_NAME_SIZE); - - iprop = of_get_property(np, "reg", NULL); - if (!iprop) - return -EINVAL; - - addr = be32_to_cpup(iprop); - - /* We need the adapter number */ - i2c = of_find_i2c_device_by_node(np); - if (!i2c) - return -ENODEV; - - snprintf(buf, len, "%s.%u-%04x", temp, i2c->adapter->nr, addr); - - return 0; -} - -static int get_dma_channel(struct device_node *ssi_np, - const char *name, - struct snd_soc_dai_link *dai, - unsigned int *dma_channel_id, - unsigned int *dma_id) -{ - struct resource res; - struct device_node *dma_channel_np; - const u32 *iprop; - int ret; - - dma_channel_np = get_node_by_phandle_name(ssi_np, name, - "fsl,ssi-dma-channel"); - if (!dma_channel_np) - return -EINVAL; - - /* Determine the dev_name for the device_node. This code mimics the - * behavior of of_device_make_bus_id(). We need this because ASoC uses - * the dev_name() of the device to match the platform (DMA) device with - * the CPU (SSI) device. It's all ugly and hackish, but it works (for - * now). - * - * dai->platform name should already point to an allocated buffer. - */ - ret = of_address_to_resource(dma_channel_np, 0, &res); - if (ret) { - of_node_put(dma_channel_np); - return ret; - } - snprintf((char *)dai->platform_name, DAI_NAME_SIZE, "%llx.%s", - (unsigned long long) res.start, dma_channel_np->name); - - iprop = of_get_property(dma_channel_np, "cell-index", NULL); - if (!iprop) { - of_node_put(dma_channel_np); - return -EINVAL; - } - - *dma_channel_id = be32_to_cpup(iprop); - *dma_id = get_parent_cell_index(dma_channel_np); - of_node_put(dma_channel_np); - - return 0; -} - -/** - * p1022_ds_probe: platform probe function for the machine driver - * - * Although this is a machine driver, the SSI node is the "master" node with - * respect to audio hardware connections. Therefore, we create a new ASoC - * device for each new SSI node that has a codec attached. - */ -static int p1022_ds_probe(struct platform_device *pdev) -{ - struct device *dev = pdev->dev.parent; - /* ssi_pdev is the platform device for the SSI node that probed us */ - struct platform_device *ssi_pdev = - container_of(dev, struct platform_device, dev); - struct device_node *np = ssi_pdev->dev.of_node; - struct device_node *codec_np = NULL; - struct platform_device *sound_device = NULL; - struct machine_data *mdata; - int ret = -ENODEV; - const char *sprop; - const u32 *iprop; - - /* Find the codec node for this SSI. */ - codec_np = of_parse_phandle(np, "codec-handle", 0); - if (!codec_np) { - dev_err(dev, "could not find codec node\n"); - return -EINVAL; - } - - mdata = kzalloc(sizeof(struct machine_data), GFP_KERNEL); - if (!mdata) { - ret = -ENOMEM; - goto error_put; - } - - mdata->dai[0].cpu_dai_name = dev_name(&ssi_pdev->dev); - mdata->dai[0].ops = &p1022_ds_ops; - - /* Determine the codec name, it will be used as the codec DAI name */ - ret = codec_node_dev_name(codec_np, mdata->codec_name, DAI_NAME_SIZE); - if (ret) { - dev_err(&pdev->dev, "invalid codec node %s\n", - codec_np->full_name); - ret = -EINVAL; - goto error; - } - mdata->dai[0].codec_name = mdata->codec_name; - - /* We register two DAIs per SSI, one for playback and the other for - * capture. We support codecs that have separate DAIs for both playback - * and capture. - */ - memcpy(&mdata->dai[1], &mdata->dai[0], sizeof(struct snd_soc_dai_link)); - - /* The DAI names from the codec (snd_soc_dai_driver.name) */ - mdata->dai[0].codec_dai_name = "wm8776-hifi-playback"; - mdata->dai[1].codec_dai_name = "wm8776-hifi-capture"; - - /* Get the device ID */ - iprop = of_get_property(np, "cell-index", NULL); - if (!iprop) { - dev_err(&pdev->dev, "cell-index property not found\n"); - ret = -EINVAL; - goto error; - } - mdata->ssi_id = be32_to_cpup(iprop); - - /* Get the serial format and clock direction. */ - sprop = of_get_property(np, "fsl,mode", NULL); - if (!sprop) { - dev_err(&pdev->dev, "fsl,mode property not found\n"); - ret = -EINVAL; - goto error; - } - - if (strcasecmp(sprop, "i2s-slave") == 0) { - mdata->dai_format = SND_SOC_DAIFMT_NB_NF | - SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBM_CFM; - mdata->codec_clk_direction = SND_SOC_CLOCK_OUT; - mdata->cpu_clk_direction = SND_SOC_CLOCK_IN; - - /* In i2s-slave mode, the codec has its own clock source, so we - * need to get the frequency from the device tree and pass it to - * the codec driver. - */ - iprop = of_get_property(codec_np, "clock-frequency", NULL); - if (!iprop || !*iprop) { - dev_err(&pdev->dev, "codec bus-frequency " - "property is missing or invalid\n"); - ret = -EINVAL; - goto error; - } - mdata->clk_frequency = be32_to_cpup(iprop); - } else if (strcasecmp(sprop, "i2s-master") == 0) { - mdata->dai_format = SND_SOC_DAIFMT_NB_NF | - SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS; - mdata->codec_clk_direction = SND_SOC_CLOCK_IN; - mdata->cpu_clk_direction = SND_SOC_CLOCK_OUT; - } else if (strcasecmp(sprop, "lj-slave") == 0) { - mdata->dai_format = SND_SOC_DAIFMT_NB_NF | - SND_SOC_DAIFMT_LEFT_J | SND_SOC_DAIFMT_CBM_CFM; - mdata->codec_clk_direction = SND_SOC_CLOCK_OUT; - mdata->cpu_clk_direction = SND_SOC_CLOCK_IN; - } else if (strcasecmp(sprop, "lj-master") == 0) { - mdata->dai_format = SND_SOC_DAIFMT_NB_NF | - SND_SOC_DAIFMT_LEFT_J | SND_SOC_DAIFMT_CBS_CFS; - mdata->codec_clk_direction = SND_SOC_CLOCK_IN; - mdata->cpu_clk_direction = SND_SOC_CLOCK_OUT; - } else if (strcasecmp(sprop, "rj-slave") == 0) { - mdata->dai_format = SND_SOC_DAIFMT_NB_NF | - SND_SOC_DAIFMT_RIGHT_J | SND_SOC_DAIFMT_CBM_CFM; - mdata->codec_clk_direction = SND_SOC_CLOCK_OUT; - mdata->cpu_clk_direction = SND_SOC_CLOCK_IN; - } else if (strcasecmp(sprop, "rj-master") == 0) { - mdata->dai_format = SND_SOC_DAIFMT_NB_NF | - SND_SOC_DAIFMT_RIGHT_J | SND_SOC_DAIFMT_CBS_CFS; - mdata->codec_clk_direction = SND_SOC_CLOCK_IN; - mdata->cpu_clk_direction = SND_SOC_CLOCK_OUT; - } else if (strcasecmp(sprop, "ac97-slave") == 0) { - mdata->dai_format = SND_SOC_DAIFMT_NB_NF | - SND_SOC_DAIFMT_AC97 | SND_SOC_DAIFMT_CBM_CFM; - mdata->codec_clk_direction = SND_SOC_CLOCK_OUT; - mdata->cpu_clk_direction = SND_SOC_CLOCK_IN; - } else if (strcasecmp(sprop, "ac97-master") == 0) { - mdata->dai_format = SND_SOC_DAIFMT_NB_NF | - SND_SOC_DAIFMT_AC97 | SND_SOC_DAIFMT_CBS_CFS; - mdata->codec_clk_direction = SND_SOC_CLOCK_IN; - mdata->cpu_clk_direction = SND_SOC_CLOCK_OUT; - } else { - dev_err(&pdev->dev, - "unrecognized fsl,mode property '%s'\n", sprop); - ret = -EINVAL; - goto error; - } - - if (!mdata->clk_frequency) { - dev_err(&pdev->dev, "unknown clock frequency\n"); - ret = -EINVAL; - goto error; - } - - /* Find the playback DMA channel to use. */ - mdata->dai[0].platform_name = mdata->platform_name[0]; - ret = get_dma_channel(np, "fsl,playback-dma", &mdata->dai[0], - &mdata->dma_channel_id[0], - &mdata->dma_id[0]); - if (ret) { - dev_err(&pdev->dev, "missing/invalid playback DMA phandle\n"); - goto error; - } - - /* Find the capture DMA channel to use. */ - mdata->dai[1].platform_name = mdata->platform_name[1]; - ret = get_dma_channel(np, "fsl,capture-dma", &mdata->dai[1], - &mdata->dma_channel_id[1], - &mdata->dma_id[1]); - if (ret) { - dev_err(&pdev->dev, "missing/invalid capture DMA phandle\n"); - goto error; - } - - /* Initialize our DAI data structure. */ - mdata->dai[0].stream_name = "playback"; - mdata->dai[1].stream_name = "capture"; - mdata->dai[0].name = mdata->dai[0].stream_name; - mdata->dai[1].name = mdata->dai[1].stream_name; - - mdata->card.probe = p1022_ds_machine_probe; - mdata->card.remove = p1022_ds_machine_remove; - mdata->card.name = pdev->name; /* The platform driver name */ - mdata->card.num_links = 2; - mdata->card.dai_link = mdata->dai; - - /* Allocate a new audio platform device structure */ - sound_device = platform_device_alloc("soc-audio", -1); - if (!sound_device) { - dev_err(&pdev->dev, "platform device alloc failed\n"); - ret = -ENOMEM; - goto error; - } - - /* Associate the card data with the sound device */ - platform_set_drvdata(sound_device, &mdata->card); - - /* Register with ASoC */ - ret = platform_device_add(sound_device); - if (ret) { - dev_err(&pdev->dev, "platform device add failed\n"); - goto error; - } - dev_set_drvdata(&pdev->dev, sound_device); - - of_node_put(codec_np); - - return 0; - -error: - if (sound_device) - platform_device_put(sound_device); - - kfree(mdata); -error_put: - of_node_put(codec_np); - return ret; -} - -/** - * p1022_ds_remove: remove the platform device - * - * This function is called when the platform device is removed. - */ -static int __devexit p1022_ds_remove(struct platform_device *pdev) -{ - struct platform_device *sound_device = dev_get_drvdata(&pdev->dev); - struct snd_soc_card *card = platform_get_drvdata(sound_device); - struct machine_data *mdata = - container_of(card, struct machine_data, card); - - platform_device_unregister(sound_device); - - kfree(mdata); - sound_device->dev.platform_data = NULL; - - dev_set_drvdata(&pdev->dev, NULL); - - return 0; -} - -static struct platform_driver p1022_ds_driver = { - .probe = p1022_ds_probe, - .remove = __devexit_p(p1022_ds_remove), - .driver = { - /* - * The name must match 'compatible' property in the device tree, - * in lowercase letters. - */ - .name = "snd-soc-p1022ds", - .owner = THIS_MODULE, - }, -}; - -/** - * p1022_ds_init: machine driver initialization. - * - * This function is called when this module is loaded. - */ -static int __init p1022_ds_init(void) -{ - struct device_node *guts_np; - struct resource res; - - /* Get the physical address of the global utilities registers */ - guts_np = of_find_compatible_node(NULL, NULL, "fsl,p1022-guts"); - if (of_address_to_resource(guts_np, 0, &res)) { - pr_err("snd-soc-p1022ds: missing/invalid global utils node\n"); - of_node_put(guts_np); - return -EINVAL; - } - guts_phys = res.start; - of_node_put(guts_np); - - return platform_driver_register(&p1022_ds_driver); -} - -/** - * p1022_ds_exit: machine driver exit - * - * This function is called when this driver is unloaded. - */ -static void __exit p1022_ds_exit(void) -{ - platform_driver_unregister(&p1022_ds_driver); -} - -module_init(p1022_ds_init); -module_exit(p1022_ds_exit); - -MODULE_AUTHOR("Timur Tabi "); -MODULE_DESCRIPTION("Freescale P1022 DS ALSA SoC machine driver"); -MODULE_LICENSE("GPL v2"); -- cgit