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Diffstat (limited to 'sound/soc/tegra/tegra_das.c')
-rw-r--r--sound/soc/tegra/tegra_das.c261
1 files changed, 0 insertions, 261 deletions
diff --git a/sound/soc/tegra/tegra_das.c b/sound/soc/tegra/tegra_das.c
deleted file mode 100644
index 3b3c1ba4d235..000000000000
--- a/sound/soc/tegra/tegra_das.c
+++ /dev/null
@@ -1,261 +0,0 @@
-/*
- * tegra_das.c - Tegra DAS driver
- *
- * Author: Stephen Warren <swarren@nvidia.com>
- * Copyright (C) 2010 - NVIDIA, Inc.
- *
- * 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.
- *
- * 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, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA
- *
- */
-
-#include <linux/module.h>
-#include <linux/debugfs.h>
-#include <linux/device.h>
-#include <linux/platform_device.h>
-#include <linux/seq_file.h>
-#include <linux/slab.h>
-#include <linux/io.h>
-#include <mach/iomap.h>
-#include <sound/soc.h>
-#include "tegra_das.h"
-
-#define DRV_NAME "tegra-das"
-
-static struct tegra_das *das;
-
-static inline void tegra_das_write(u32 reg, u32 val)
-{
- __raw_writel(val, das->regs + reg);
-}
-
-static inline u32 tegra_das_read(u32 reg)
-{
- return __raw_readl(das->regs + reg);
-}
-
-int tegra_das_connect_dap_to_dac(int dap, int dac)
-{
- u32 addr;
- u32 reg;
-
- if (!das)
- return -ENODEV;
-
- addr = TEGRA_DAS_DAP_CTRL_SEL +
- (dap * TEGRA_DAS_DAP_CTRL_SEL_STRIDE);
- reg = dac << TEGRA_DAS_DAP_CTRL_SEL_DAP_CTRL_SEL_P;
-
- tegra_das_write(addr, reg);
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(tegra_das_connect_dap_to_dac);
-
-int tegra_das_connect_dap_to_dap(int dap, int otherdap, int master,
- int sdata1rx, int sdata2rx)
-{
- u32 addr;
- u32 reg;
-
- if (!das)
- return -ENODEV;
-
- addr = TEGRA_DAS_DAP_CTRL_SEL +
- (dap * TEGRA_DAS_DAP_CTRL_SEL_STRIDE);
- reg = otherdap << TEGRA_DAS_DAP_CTRL_SEL_DAP_CTRL_SEL_P |
- !!sdata2rx << TEGRA_DAS_DAP_CTRL_SEL_DAP_SDATA2_TX_RX_P |
- !!sdata1rx << TEGRA_DAS_DAP_CTRL_SEL_DAP_SDATA1_TX_RX_P |
- !!master << TEGRA_DAS_DAP_CTRL_SEL_DAP_MS_SEL_P;
-
- tegra_das_write(addr, reg);
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(tegra_das_connect_dap_to_dap);
-
-int tegra_das_connect_dac_to_dap(int dac, int dap)
-{
- u32 addr;
- u32 reg;
-
- if (!das)
- return -ENODEV;
-
- addr = TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL +
- (dac * TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_STRIDE);
- reg = dap << TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_CLK_SEL_P |
- dap << TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_SDATA1_SEL_P |
- dap << TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_SDATA2_SEL_P;
-
- tegra_das_write(addr, reg);
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(tegra_das_connect_dac_to_dap);
-
-#ifdef CONFIG_DEBUG_FS
-static int tegra_das_show(struct seq_file *s, void *unused)
-{
- int i;
- u32 addr;
- u32 reg;
-
- for (i = 0; i < TEGRA_DAS_DAP_CTRL_SEL_COUNT; i++) {
- addr = TEGRA_DAS_DAP_CTRL_SEL +
- (i * TEGRA_DAS_DAP_CTRL_SEL_STRIDE);
- reg = tegra_das_read(addr);
- seq_printf(s, "TEGRA_DAS_DAP_CTRL_SEL[%d] = %08x\n", i, reg);
- }
-
- for (i = 0; i < TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_COUNT; i++) {
- addr = TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL +
- (i * TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_STRIDE);
- reg = tegra_das_read(addr);
- seq_printf(s, "TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL[%d] = %08x\n",
- i, reg);
- }
-
- return 0;
-}
-
-static int tegra_das_debug_open(struct inode *inode, struct file *file)
-{
- return single_open(file, tegra_das_show, inode->i_private);
-}
-
-static const struct file_operations tegra_das_debug_fops = {
- .open = tegra_das_debug_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static void tegra_das_debug_add(struct tegra_das *das)
-{
- das->debug = debugfs_create_file(DRV_NAME, S_IRUGO,
- snd_soc_debugfs_root, das,
- &tegra_das_debug_fops);
-}
-
-static void tegra_das_debug_remove(struct tegra_das *das)
-{
- if (das->debug)
- debugfs_remove(das->debug);
-}
-#else
-static inline void tegra_das_debug_add(struct tegra_das *das)
-{
-}
-
-static inline void tegra_das_debug_remove(struct tegra_das *das)
-{
-}
-#endif
-
-static int __devinit tegra_das_probe(struct platform_device *pdev)
-{
- struct resource *res, *region;
- int ret = 0;
-
- if (das)
- return -ENODEV;
-
- das = devm_kzalloc(&pdev->dev, sizeof(struct tegra_das), GFP_KERNEL);
- if (!das) {
- dev_err(&pdev->dev, "Can't allocate tegra_das\n");
- ret = -ENOMEM;
- goto err;
- }
- das->dev = &pdev->dev;
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res) {
- dev_err(&pdev->dev, "No memory resource\n");
- ret = -ENODEV;
- goto err;
- }
-
- region = devm_request_mem_region(&pdev->dev, res->start,
- resource_size(res), pdev->name);
- if (!region) {
- dev_err(&pdev->dev, "Memory region already claimed\n");
- ret = -EBUSY;
- goto err;
- }
-
- das->regs = devm_ioremap(&pdev->dev, res->start, resource_size(res));
- if (!das->regs) {
- dev_err(&pdev->dev, "ioremap failed\n");
- ret = -ENOMEM;
- goto err;
- }
-
- ret = tegra_das_connect_dap_to_dac(TEGRA_DAS_DAP_ID_1,
- TEGRA_DAS_DAP_SEL_DAC1);
- if (ret) {
- dev_err(&pdev->dev, "Can't set up DAS DAP connection\n");
- goto err;
- }
- ret = tegra_das_connect_dac_to_dap(TEGRA_DAS_DAC_ID_1,
- TEGRA_DAS_DAC_SEL_DAP1);
- if (ret) {
- dev_err(&pdev->dev, "Can't set up DAS DAC connection\n");
- goto err;
- }
-
- tegra_das_debug_add(das);
-
- platform_set_drvdata(pdev, das);
-
- return 0;
-
-err:
- das = NULL;
- return ret;
-}
-
-static int __devexit tegra_das_remove(struct platform_device *pdev)
-{
- if (!das)
- return -ENODEV;
-
- tegra_das_debug_remove(das);
-
- das = NULL;
-
- return 0;
-}
-
-static const struct of_device_id tegra_das_of_match[] __devinitconst = {
- { .compatible = "nvidia,tegra20-das", },
- {},
-};
-
-static struct platform_driver tegra_das_driver = {
- .probe = tegra_das_probe,
- .remove = __devexit_p(tegra_das_remove),
- .driver = {
- .name = DRV_NAME,
- .owner = THIS_MODULE,
- .of_match_table = tegra_das_of_match,
- },
-};
-module_platform_driver(tegra_das_driver);
-
-MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>");
-MODULE_DESCRIPTION("Tegra DAS driver");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:" DRV_NAME);
-MODULE_DEVICE_TABLE(of, tegra_das_of_match);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-28 10:42:09 +0000