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Diffstat (limited to 'sound/soc/blackfin/bf5xx-tdm.c')
-rw-r--r--sound/soc/blackfin/bf5xx-tdm.c328
1 files changed, 0 insertions, 328 deletions
diff --git a/sound/soc/blackfin/bf5xx-tdm.c b/sound/soc/blackfin/bf5xx-tdm.c
deleted file mode 100644
index aa0851650b56..000000000000
--- a/sound/soc/blackfin/bf5xx-tdm.c
+++ /dev/null
@@ -1,328 +0,0 @@
-/*
- * File: sound/soc/blackfin/bf5xx-tdm.c
- * Author: Barry Song <Barry.Song@analog.com>
- *
- * Created: Thurs June 04 2009
- * Description: Blackfin I2S(TDM) CPU DAI driver
- * Even though TDM mode can be as part of I2S DAI, but there
- * are so much difference in configuration and data flow,
- * it's very ugly to integrate I2S and TDM into a module
- *
- * Modified:
- * Copyright 2009 Analog Devices Inc.
- *
- * Bugs: Enter bugs at http://blackfin.uclinux.org/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that 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 the file COPYING, or write
- * to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/device.h>
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/pcm_params.h>
-#include <sound/initval.h>
-#include <sound/soc.h>
-
-#include <asm/irq.h>
-#include <asm/portmux.h>
-#include <linux/mutex.h>
-#include <linux/gpio.h>
-
-#include "bf5xx-sport.h"
-#include "bf5xx-tdm.h"
-
-static int bf5xx_tdm_set_dai_fmt(struct snd_soc_dai *cpu_dai,
- unsigned int fmt)
-{
- int ret = 0;
-
- /* interface format:support TDM,slave mode */
- switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
- case SND_SOC_DAIFMT_DSP_A:
- break;
- default:
- printk(KERN_ERR "%s: Unknown DAI format type\n", __func__);
- ret = -EINVAL;
- break;
- }
-
- switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
- case SND_SOC_DAIFMT_CBM_CFM:
- break;
- case SND_SOC_DAIFMT_CBS_CFS:
- case SND_SOC_DAIFMT_CBM_CFS:
- case SND_SOC_DAIFMT_CBS_CFM:
- ret = -EINVAL;
- break;
- default:
- printk(KERN_ERR "%s: Unknown DAI master type\n", __func__);
- ret = -EINVAL;
- break;
- }
-
- return ret;
-}
-
-static int bf5xx_tdm_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params,
- struct snd_soc_dai *dai)
-{
- struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai);
- struct bf5xx_tdm_port *bf5xx_tdm = sport_handle->private_data;
- int ret = 0;
-
- bf5xx_tdm->tcr2 &= ~0x1f;
- bf5xx_tdm->rcr2 &= ~0x1f;
- switch (params_format(params)) {
- case SNDRV_PCM_FORMAT_S32_LE:
- bf5xx_tdm->tcr2 |= 31;
- bf5xx_tdm->rcr2 |= 31;
- sport_handle->wdsize = 4;
- break;
- /* at present, we only support 32bit transfer */
- default:
- pr_err("not supported PCM format yet\n");
- return -EINVAL;
- break;
- }
-
- if (!bf5xx_tdm->configured) {
- /*
- * TX and RX are not independent,they are enabled at the
- * same time, even if only one side is running. So, we
- * need to configure both of them at the time when the first
- * stream is opened.
- *
- * CPU DAI:slave mode.
- */
- ret = sport_config_rx(sport_handle, bf5xx_tdm->rcr1,
- bf5xx_tdm->rcr2, 0, 0);
- if (ret) {
- pr_err("SPORT is busy!\n");
- return -EBUSY;
- }
-
- ret = sport_config_tx(sport_handle, bf5xx_tdm->tcr1,
- bf5xx_tdm->tcr2, 0, 0);
- if (ret) {
- pr_err("SPORT is busy!\n");
- return -EBUSY;
- }
-
- bf5xx_tdm->configured = 1;
- }
-
- return 0;
-}
-
-static void bf5xx_tdm_shutdown(struct snd_pcm_substream *substream,
- struct snd_soc_dai *dai)
-{
- struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai);
- struct bf5xx_tdm_port *bf5xx_tdm = sport_handle->private_data;
-
- /* No active stream, SPORT is allowed to be configured again. */
- if (!dai->active)
- bf5xx_tdm->configured = 0;
-}
-
-static int bf5xx_tdm_set_channel_map(struct snd_soc_dai *dai,
- unsigned int tx_num, unsigned int *tx_slot,
- unsigned int rx_num, unsigned int *rx_slot)
-{
- struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai);
- struct bf5xx_tdm_port *bf5xx_tdm = sport_handle->private_data;
- int i;
- unsigned int slot;
- unsigned int tx_mapped = 0, rx_mapped = 0;
-
- if ((tx_num > BFIN_TDM_DAI_MAX_SLOTS) ||
- (rx_num > BFIN_TDM_DAI_MAX_SLOTS))
- return -EINVAL;
-
- for (i = 0; i < tx_num; i++) {
- slot = tx_slot[i];
- if ((slot < BFIN_TDM_DAI_MAX_SLOTS) &&
- (!(tx_mapped & (1 << slot)))) {
- bf5xx_tdm->tx_map[i] = slot;
- tx_mapped |= 1 << slot;
- } else
- return -EINVAL;
- }
- for (i = 0; i < rx_num; i++) {
- slot = rx_slot[i];
- if ((slot < BFIN_TDM_DAI_MAX_SLOTS) &&
- (!(rx_mapped & (1 << slot)))) {
- bf5xx_tdm->rx_map[i] = slot;
- rx_mapped |= 1 << slot;
- } else
- return -EINVAL;
- }
-
- return 0;
-}
-
-#ifdef CONFIG_PM
-static int bf5xx_tdm_suspend(struct snd_soc_dai *dai)
-{
- struct sport_device *sport = snd_soc_dai_get_drvdata(dai);
-
- if (dai->playback_active)
- sport_tx_stop(sport);
- if (dai->capture_active)
- sport_rx_stop(sport);
-
- /* isolate sync/clock pins from codec while sports resume */
- peripheral_free_list(sport->pin_req);
-
- return 0;
-}
-
-static int bf5xx_tdm_resume(struct snd_soc_dai *dai)
-{
- int ret;
- struct sport_device *sport = snd_soc_dai_get_drvdata(dai);
-
- ret = sport_set_multichannel(sport, 8, 0xFF, 0xFF, 1);
- if (ret) {
- pr_err("SPORT is busy!\n");
- ret = -EBUSY;
- }
-
- ret = sport_config_rx(sport, 0, 0x1F, 0, 0);
- if (ret) {
- pr_err("SPORT is busy!\n");
- ret = -EBUSY;
- }
-
- ret = sport_config_tx(sport, 0, 0x1F, 0, 0);
- if (ret) {
- pr_err("SPORT is busy!\n");
- ret = -EBUSY;
- }
-
- peripheral_request_list(sport->pin_req, "soc-audio");
-
- return 0;
-}
-
-#else
-#define bf5xx_tdm_suspend NULL
-#define bf5xx_tdm_resume NULL
-#endif
-
-static const struct snd_soc_dai_ops bf5xx_tdm_dai_ops = {
- .hw_params = bf5xx_tdm_hw_params,
- .set_fmt = bf5xx_tdm_set_dai_fmt,
- .shutdown = bf5xx_tdm_shutdown,
- .set_channel_map = bf5xx_tdm_set_channel_map,
-};
-
-static struct snd_soc_dai_driver bf5xx_tdm_dai = {
- .suspend = bf5xx_tdm_suspend,
- .resume = bf5xx_tdm_resume,
- .playback = {
- .channels_min = 2,
- .channels_max = 8,
- .rates = SNDRV_PCM_RATE_48000,
- .formats = SNDRV_PCM_FMTBIT_S32_LE,},
- .capture = {
- .channels_min = 2,
- .channels_max = 8,
- .rates = SNDRV_PCM_RATE_48000,
- .formats = SNDRV_PCM_FMTBIT_S32_LE,},
- .ops = &bf5xx_tdm_dai_ops,
-};
-
-static const struct snd_soc_component_driver bf5xx_tdm_component = {
- .name = "bf5xx-tdm",
-};
-
-static int bfin_tdm_probe(struct platform_device *pdev)
-{
- struct sport_device *sport_handle;
- int ret;
-
- /* configure SPORT for TDM */
- sport_handle = sport_init(pdev, 4, 8 * sizeof(u32),
- sizeof(struct bf5xx_tdm_port));
- if (!sport_handle)
- return -ENODEV;
-
- /* SPORT works in TDM mode */
- ret = sport_set_multichannel(sport_handle, 8, 0xFF, 0xFF, 1);
- if (ret) {
- pr_err("SPORT is busy!\n");
- ret = -EBUSY;
- goto sport_config_err;
- }
-
- ret = sport_config_rx(sport_handle, 0, 0x1F, 0, 0);
- if (ret) {
- pr_err("SPORT is busy!\n");
- ret = -EBUSY;
- goto sport_config_err;
- }
-
- ret = sport_config_tx(sport_handle, 0, 0x1F, 0, 0);
- if (ret) {
- pr_err("SPORT is busy!\n");
- ret = -EBUSY;
- goto sport_config_err;
- }
-
- ret = snd_soc_register_component(&pdev->dev, &bf5xx_tdm_component,
- &bf5xx_tdm_dai, 1);
- if (ret) {
- pr_err("Failed to register DAI: %d\n", ret);
- goto sport_config_err;
- }
-
- return 0;
-
-sport_config_err:
- sport_done(sport_handle);
- return ret;
-}
-
-static int bfin_tdm_remove(struct platform_device *pdev)
-{
- struct sport_device *sport_handle = platform_get_drvdata(pdev);
-
- snd_soc_unregister_component(&pdev->dev);
- sport_done(sport_handle);
-
- return 0;
-}
-
-static struct platform_driver bfin_tdm_driver = {
- .probe = bfin_tdm_probe,
- .remove = bfin_tdm_remove,
- .driver = {
- .name = "bfin-tdm",
- .owner = THIS_MODULE,
- },
-};
-
-module_platform_driver(bfin_tdm_driver);
-
-/* Module information */
-MODULE_AUTHOR("Barry Song");
-MODULE_DESCRIPTION("TDM driver for ADI Blackfin");
-MODULE_LICENSE("GPL");
-
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