# Tegra platform Support
snd-soc-tegra-pcm-objs := tegra_pcm.o
snd-soc-tegra-utils-objs += tegra_asoc_utils.o
-snd-soc-tegra-das-objs := tegra_das.o
-snd-soc-tegra-i2s-objs := tegra_i2s.o
-snd-soc-tegra-spdif-objs := tegra_spdif.o
+snd-soc-tegra20-das-objs := tegra20_das.o
+snd-soc-tegra20-i2s-objs := tegra20_i2s.o
+snd-soc-tegra20-spdif-objs := tegra20_spdif.o
obj-$(CONFIG_SND_SOC_TEGRA) += snd-soc-tegra-pcm.o
obj-$(CONFIG_SND_SOC_TEGRA) += snd-soc-tegra-utils.o
-obj-$(CONFIG_SND_SOC_TEGRA_DAS) += snd-soc-tegra-das.o
-obj-$(CONFIG_SND_SOC_TEGRA_I2S) += snd-soc-tegra-i2s.o
-obj-$(CONFIG_SND_SOC_TEGRA_SPDIF) += snd-soc-tegra-spdif.o
+obj-$(CONFIG_SND_SOC_TEGRA_DAS) += snd-soc-tegra20-das.o
+obj-$(CONFIG_SND_SOC_TEGRA_I2S) += snd-soc-tegra20-i2s.o
+obj-$(CONFIG_SND_SOC_TEGRA_SPDIF) += snd-soc-tegra20-spdif.o
# Tegra machine Support
snd-soc-tegra-wm8903-objs := tegra_wm8903.o
--- /dev/null
+/*
+ * tegra20_das.c - Tegra20 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 "tegra20_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);
--- /dev/null
+/*
+ * tegra20_das.h - Definitions for Tegra20 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
+ *
+ */
+
+#ifndef __TEGRA_DAS_H__
+#define __TEGRA_DAS_H__
+
+/* Register TEGRA_DAS_DAP_CTRL_SEL */
+#define TEGRA_DAS_DAP_CTRL_SEL 0x00
+#define TEGRA_DAS_DAP_CTRL_SEL_COUNT 5
+#define TEGRA_DAS_DAP_CTRL_SEL_STRIDE 4
+#define TEGRA_DAS_DAP_CTRL_SEL_DAP_MS_SEL_P 31
+#define TEGRA_DAS_DAP_CTRL_SEL_DAP_MS_SEL_S 1
+#define TEGRA_DAS_DAP_CTRL_SEL_DAP_SDATA1_TX_RX_P 30
+#define TEGRA_DAS_DAP_CTRL_SEL_DAP_SDATA1_TX_RX_S 1
+#define TEGRA_DAS_DAP_CTRL_SEL_DAP_SDATA2_TX_RX_P 29
+#define TEGRA_DAS_DAP_CTRL_SEL_DAP_SDATA2_TX_RX_S 1
+#define TEGRA_DAS_DAP_CTRL_SEL_DAP_CTRL_SEL_P 0
+#define TEGRA_DAS_DAP_CTRL_SEL_DAP_CTRL_SEL_S 5
+
+/* Values for field TEGRA_DAS_DAP_CTRL_SEL_DAP_CTRL_SEL */
+#define TEGRA_DAS_DAP_SEL_DAC1 0
+#define TEGRA_DAS_DAP_SEL_DAC2 1
+#define TEGRA_DAS_DAP_SEL_DAC3 2
+#define TEGRA_DAS_DAP_SEL_DAP1 16
+#define TEGRA_DAS_DAP_SEL_DAP2 17
+#define TEGRA_DAS_DAP_SEL_DAP3 18
+#define TEGRA_DAS_DAP_SEL_DAP4 19
+#define TEGRA_DAS_DAP_SEL_DAP5 20
+
+/* Register TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL */
+#define TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL 0x40
+#define TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_COUNT 3
+#define TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_STRIDE 4
+#define TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_SDATA2_SEL_P 28
+#define TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_SDATA2_SEL_S 4
+#define TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_SDATA1_SEL_P 24
+#define TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_SDATA1_SEL_S 4
+#define TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_CLK_SEL_P 0
+#define TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_CLK_SEL_S 4
+
+/*
+ * Values for:
+ * TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_SDATA2_SEL
+ * TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_SDATA1_SEL
+ * TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_CLK_SEL
+ */
+#define TEGRA_DAS_DAC_SEL_DAP1 0
+#define TEGRA_DAS_DAC_SEL_DAP2 1
+#define TEGRA_DAS_DAC_SEL_DAP3 2
+#define TEGRA_DAS_DAC_SEL_DAP4 3
+#define TEGRA_DAS_DAC_SEL_DAP5 4
+
+/*
+ * Names/IDs of the DACs/DAPs.
+ */
+
+#define TEGRA_DAS_DAP_ID_1 0
+#define TEGRA_DAS_DAP_ID_2 1
+#define TEGRA_DAS_DAP_ID_3 2
+#define TEGRA_DAS_DAP_ID_4 3
+#define TEGRA_DAS_DAP_ID_5 4
+
+#define TEGRA_DAS_DAC_ID_1 0
+#define TEGRA_DAS_DAC_ID_2 1
+#define TEGRA_DAS_DAC_ID_3 2
+
+struct tegra_das {
+ struct device *dev;
+ void __iomem *regs;
+ struct dentry *debug;
+};
+
+/*
+ * Terminology:
+ * DAS: Digital audio switch (HW module controlled by this driver)
+ * DAP: Digital audio port (port/pins on Tegra device)
+ * DAC: Digital audio controller (e.g. I2S or AC97 controller elsewhere)
+ *
+ * The Tegra DAS is a mux/cross-bar which can connect each DAP to a specific
+ * DAC, or another DAP. When DAPs are connected, one must be the master and
+ * one the slave. Each DAC allows selection of a specific DAP for input, to
+ * cater for the case where N DAPs are connected to 1 DAC for broadcast
+ * output.
+ *
+ * This driver is dumb; no attempt is made to ensure that a valid routing
+ * configuration is programmed.
+ */
+
+/*
+ * Connect a DAP to to a DAC
+ * dap_id: DAP to connect: TEGRA_DAS_DAP_ID_*
+ * dac_sel: DAC to connect to: TEGRA_DAS_DAP_SEL_DAC*
+ */
+extern int tegra_das_connect_dap_to_dac(int dap_id, int dac_sel);
+
+/*
+ * Connect a DAP to to another DAP
+ * dap_id: DAP to connect: TEGRA_DAS_DAP_ID_*
+ * other_dap_sel: DAP to connect to: TEGRA_DAS_DAP_SEL_DAP*
+ * master: Is this DAP the master (1) or slave (0)
+ * sdata1rx: Is this DAP's SDATA1 pin RX (1) or TX (0)
+ * sdata2rx: Is this DAP's SDATA2 pin RX (1) or TX (0)
+ */
+extern int tegra_das_connect_dap_to_dap(int dap_id, int other_dap_sel,
+ int master, int sdata1rx,
+ int sdata2rx);
+
+/*
+ * Connect a DAC's input to a DAP
+ * (DAC outputs are selected by the DAP)
+ * dac_id: DAC ID to connect: TEGRA_DAS_DAC_ID_*
+ * dap_sel: DAP to receive input from: TEGRA_DAS_DAC_SEL_DAP*
+ */
+extern int tegra_das_connect_dac_to_dap(int dac_id, int dap_sel);
+
+#endif
--- /dev/null
+/*
+ * tegra20_i2s.c - Tegra20 I2S driver
+ *
+ * Author: Stephen Warren <swarren@nvidia.com>
+ * Copyright (C) 2010,2012 - NVIDIA, Inc.
+ *
+ * Based on code copyright/by:
+ *
+ * Copyright (c) 2009-2010, NVIDIA Corporation.
+ * Scott Peterson <speterson@nvidia.com>
+ *
+ * Copyright (C) 2010 Google, Inc.
+ * Iliyan Malchev <malchev@google.com>
+ *
+ * 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/clk.h>
+#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 <linux/of.h>
+#include <mach/iomap.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#include "tegra20_i2s.h"
+
+#define DRV_NAME "tegra-i2s"
+
+static inline void tegra_i2s_write(struct tegra_i2s *i2s, u32 reg, u32 val)
+{
+ __raw_writel(val, i2s->regs + reg);
+}
+
+static inline u32 tegra_i2s_read(struct tegra_i2s *i2s, u32 reg)
+{
+ return __raw_readl(i2s->regs + reg);
+}
+
+#ifdef CONFIG_DEBUG_FS
+static int tegra_i2s_show(struct seq_file *s, void *unused)
+{
+#define REG(r) { r, #r }
+ static const struct {
+ int offset;
+ const char *name;
+ } regs[] = {
+ REG(TEGRA_I2S_CTRL),
+ REG(TEGRA_I2S_STATUS),
+ REG(TEGRA_I2S_TIMING),
+ REG(TEGRA_I2S_FIFO_SCR),
+ REG(TEGRA_I2S_PCM_CTRL),
+ REG(TEGRA_I2S_NW_CTRL),
+ REG(TEGRA_I2S_TDM_CTRL),
+ REG(TEGRA_I2S_TDM_TX_RX_CTRL),
+ };
+#undef REG
+
+ struct tegra_i2s *i2s = s->private;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(regs); i++) {
+ u32 val = tegra_i2s_read(i2s, regs[i].offset);
+ seq_printf(s, "%s = %08x\n", regs[i].name, val);
+ }
+
+ return 0;
+}
+
+static int tegra_i2s_debug_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, tegra_i2s_show, inode->i_private);
+}
+
+static const struct file_operations tegra_i2s_debug_fops = {
+ .open = tegra_i2s_debug_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static void tegra_i2s_debug_add(struct tegra_i2s *i2s)
+{
+ i2s->debug = debugfs_create_file(i2s->dai.name, S_IRUGO,
+ snd_soc_debugfs_root, i2s,
+ &tegra_i2s_debug_fops);
+}
+
+static void tegra_i2s_debug_remove(struct tegra_i2s *i2s)
+{
+ if (i2s->debug)
+ debugfs_remove(i2s->debug);
+}
+#else
+static inline void tegra_i2s_debug_add(struct tegra_i2s *i2s, int id)
+{
+}
+
+static inline void tegra_i2s_debug_remove(struct tegra_i2s *i2s)
+{
+}
+#endif
+
+static int tegra_i2s_set_fmt(struct snd_soc_dai *dai,
+ unsigned int fmt)
+{
+ struct tegra_i2s *i2s = snd_soc_dai_get_drvdata(dai);
+
+ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+ case SND_SOC_DAIFMT_NB_NF:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ i2s->reg_ctrl &= ~TEGRA_I2S_CTRL_MASTER_ENABLE;
+ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+ case SND_SOC_DAIFMT_CBS_CFS:
+ i2s->reg_ctrl |= TEGRA_I2S_CTRL_MASTER_ENABLE;
+ break;
+ case SND_SOC_DAIFMT_CBM_CFM:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ i2s->reg_ctrl &= ~(TEGRA_I2S_CTRL_BIT_FORMAT_MASK |
+ TEGRA_I2S_CTRL_LRCK_MASK);
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_DSP_A:
+ i2s->reg_ctrl |= TEGRA_I2S_CTRL_BIT_FORMAT_DSP;
+ i2s->reg_ctrl |= TEGRA_I2S_CTRL_LRCK_L_LOW;
+ break;
+ case SND_SOC_DAIFMT_DSP_B:
+ i2s->reg_ctrl |= TEGRA_I2S_CTRL_BIT_FORMAT_DSP;
+ i2s->reg_ctrl |= TEGRA_I2S_CTRL_LRCK_R_LOW;
+ break;
+ case SND_SOC_DAIFMT_I2S:
+ i2s->reg_ctrl |= TEGRA_I2S_CTRL_BIT_FORMAT_I2S;
+ i2s->reg_ctrl |= TEGRA_I2S_CTRL_LRCK_L_LOW;
+ break;
+ case SND_SOC_DAIFMT_RIGHT_J:
+ i2s->reg_ctrl |= TEGRA_I2S_CTRL_BIT_FORMAT_RJM;
+ i2s->reg_ctrl |= TEGRA_I2S_CTRL_LRCK_L_LOW;
+ break;
+ case SND_SOC_DAIFMT_LEFT_J:
+ i2s->reg_ctrl |= TEGRA_I2S_CTRL_BIT_FORMAT_LJM;
+ i2s->reg_ctrl |= TEGRA_I2S_CTRL_LRCK_L_LOW;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int tegra_i2s_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct device *dev = substream->pcm->card->dev;
+ struct tegra_i2s *i2s = snd_soc_dai_get_drvdata(dai);
+ u32 reg;
+ int ret, sample_size, srate, i2sclock, bitcnt;
+
+ i2s->reg_ctrl &= ~TEGRA_I2S_CTRL_BIT_SIZE_MASK;
+ switch (params_format(params)) {
+ case SNDRV_PCM_FORMAT_S16_LE:
+ i2s->reg_ctrl |= TEGRA_I2S_CTRL_BIT_SIZE_16;
+ sample_size = 16;
+ break;
+ case SNDRV_PCM_FORMAT_S24_LE:
+ i2s->reg_ctrl |= TEGRA_I2S_CTRL_BIT_SIZE_24;
+ sample_size = 24;
+ break;
+ case SNDRV_PCM_FORMAT_S32_LE:
+ i2s->reg_ctrl |= TEGRA_I2S_CTRL_BIT_SIZE_32;
+ sample_size = 32;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ srate = params_rate(params);
+
+ /* Final "* 2" required by Tegra hardware */
+ i2sclock = srate * params_channels(params) * sample_size * 2;
+
+ ret = clk_set_rate(i2s->clk_i2s, i2sclock);
+ if (ret) {
+ dev_err(dev, "Can't set I2S clock rate: %d\n", ret);
+ return ret;
+ }
+
+ bitcnt = (i2sclock / (2 * srate)) - 1;
+ if (bitcnt < 0 || bitcnt > TEGRA_I2S_TIMING_CHANNEL_BIT_COUNT_MASK_US)
+ return -EINVAL;
+ reg = bitcnt << TEGRA_I2S_TIMING_CHANNEL_BIT_COUNT_SHIFT;
+
+ if (i2sclock % (2 * srate))
+ reg |= TEGRA_I2S_TIMING_NON_SYM_ENABLE;
+
+ clk_enable(i2s->clk_i2s);
+
+ tegra_i2s_write(i2s, TEGRA_I2S_TIMING, reg);
+
+ tegra_i2s_write(i2s, TEGRA_I2S_FIFO_SCR,
+ TEGRA_I2S_FIFO_SCR_FIFO2_ATN_LVL_FOUR_SLOTS |
+ TEGRA_I2S_FIFO_SCR_FIFO1_ATN_LVL_FOUR_SLOTS);
+
+ clk_disable(i2s->clk_i2s);
+
+ return 0;
+}
+
+static void tegra_i2s_start_playback(struct tegra_i2s *i2s)
+{
+ i2s->reg_ctrl |= TEGRA_I2S_CTRL_FIFO1_ENABLE;
+ tegra_i2s_write(i2s, TEGRA_I2S_CTRL, i2s->reg_ctrl);
+}
+
+static void tegra_i2s_stop_playback(struct tegra_i2s *i2s)
+{
+ i2s->reg_ctrl &= ~TEGRA_I2S_CTRL_FIFO1_ENABLE;
+ tegra_i2s_write(i2s, TEGRA_I2S_CTRL, i2s->reg_ctrl);
+}
+
+static void tegra_i2s_start_capture(struct tegra_i2s *i2s)
+{
+ i2s->reg_ctrl |= TEGRA_I2S_CTRL_FIFO2_ENABLE;
+ tegra_i2s_write(i2s, TEGRA_I2S_CTRL, i2s->reg_ctrl);
+}
+
+static void tegra_i2s_stop_capture(struct tegra_i2s *i2s)
+{
+ i2s->reg_ctrl &= ~TEGRA_I2S_CTRL_FIFO2_ENABLE;
+ tegra_i2s_write(i2s, TEGRA_I2S_CTRL, i2s->reg_ctrl);
+}
+
+static int tegra_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
+ struct snd_soc_dai *dai)
+{
+ struct tegra_i2s *i2s = snd_soc_dai_get_drvdata(dai);
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ clk_enable(i2s->clk_i2s);
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ tegra_i2s_start_playback(i2s);
+ else
+ tegra_i2s_start_capture(i2s);
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ tegra_i2s_stop_playback(i2s);
+ else
+ tegra_i2s_stop_capture(i2s);
+ clk_disable(i2s->clk_i2s);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int tegra_i2s_probe(struct snd_soc_dai *dai)
+{
+ struct tegra_i2s *i2s = snd_soc_dai_get_drvdata(dai);
+
+ dai->capture_dma_data = &i2s->capture_dma_data;
+ dai->playback_dma_data = &i2s->playback_dma_data;
+
+ return 0;
+}
+
+static const struct snd_soc_dai_ops tegra_i2s_dai_ops = {
+ .set_fmt = tegra_i2s_set_fmt,
+ .hw_params = tegra_i2s_hw_params,
+ .trigger = tegra_i2s_trigger,
+};
+
+static const struct snd_soc_dai_driver tegra_i2s_dai_template = {
+ .probe = tegra_i2s_probe,
+ .playback = {
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_96000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+ },
+ .capture = {
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_96000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+ },
+ .ops = &tegra_i2s_dai_ops,
+ .symmetric_rates = 1,
+};
+
+static __devinit int tegra_i2s_platform_probe(struct platform_device *pdev)
+{
+ struct tegra_i2s *i2s;
+ struct resource *mem, *memregion, *dmareq;
+ u32 of_dma[2];
+ u32 dma_ch;
+ int ret;
+
+ i2s = devm_kzalloc(&pdev->dev, sizeof(struct tegra_i2s), GFP_KERNEL);
+ if (!i2s) {
+ dev_err(&pdev->dev, "Can't allocate tegra_i2s\n");
+ ret = -ENOMEM;
+ goto err;
+ }
+ dev_set_drvdata(&pdev->dev, i2s);
+
+ i2s->dai = tegra_i2s_dai_template;
+ i2s->dai.name = dev_name(&pdev->dev);
+
+ i2s->clk_i2s = clk_get(&pdev->dev, NULL);
+ if (IS_ERR(i2s->clk_i2s)) {
+ dev_err(&pdev->dev, "Can't retrieve i2s clock\n");
+ ret = PTR_ERR(i2s->clk_i2s);
+ goto err;
+ }
+
+ mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!mem) {
+ dev_err(&pdev->dev, "No memory resource\n");
+ ret = -ENODEV;
+ goto err_clk_put;
+ }
+
+ dmareq = platform_get_resource(pdev, IORESOURCE_DMA, 0);
+ if (!dmareq) {
+ if (of_property_read_u32_array(pdev->dev.of_node,
+ "nvidia,dma-request-selector",
+ of_dma, 2) < 0) {
+ dev_err(&pdev->dev, "No DMA resource\n");
+ ret = -ENODEV;
+ goto err_clk_put;
+ }
+ dma_ch = of_dma[1];
+ } else {
+ dma_ch = dmareq->start;
+ }
+
+ memregion = devm_request_mem_region(&pdev->dev, mem->start,
+ resource_size(mem), DRV_NAME);
+ if (!memregion) {
+ dev_err(&pdev->dev, "Memory region already claimed\n");
+ ret = -EBUSY;
+ goto err_clk_put;
+ }
+
+ i2s->regs = devm_ioremap(&pdev->dev, mem->start, resource_size(mem));
+ if (!i2s->regs) {
+ dev_err(&pdev->dev, "ioremap failed\n");
+ ret = -ENOMEM;
+ goto err_clk_put;
+ }
+
+ i2s->capture_dma_data.addr = mem->start + TEGRA_I2S_FIFO2;
+ i2s->capture_dma_data.wrap = 4;
+ i2s->capture_dma_data.width = 32;
+ i2s->capture_dma_data.req_sel = dma_ch;
+
+ i2s->playback_dma_data.addr = mem->start + TEGRA_I2S_FIFO1;
+ i2s->playback_dma_data.wrap = 4;
+ i2s->playback_dma_data.width = 32;
+ i2s->playback_dma_data.req_sel = dma_ch;
+
+ i2s->reg_ctrl = TEGRA_I2S_CTRL_FIFO_FORMAT_PACKED;
+
+ ret = snd_soc_register_dai(&pdev->dev, &i2s->dai);
+ if (ret) {
+ dev_err(&pdev->dev, "Could not register DAI: %d\n", ret);
+ ret = -ENOMEM;
+ goto err_clk_put;
+ }
+
+ ret = tegra_pcm_platform_register(&pdev->dev);
+ if (ret) {
+ dev_err(&pdev->dev, "Could not register PCM: %d\n", ret);
+ goto err_unregister_dai;
+ }
+
+ tegra_i2s_debug_add(i2s);
+
+ return 0;
+
+err_unregister_dai:
+ snd_soc_unregister_dai(&pdev->dev);
+err_clk_put:
+ clk_put(i2s->clk_i2s);
+err:
+ return ret;
+}
+
+static int __devexit tegra_i2s_platform_remove(struct platform_device *pdev)
+{
+ struct tegra_i2s *i2s = dev_get_drvdata(&pdev->dev);
+
+ tegra_pcm_platform_unregister(&pdev->dev);
+ snd_soc_unregister_dai(&pdev->dev);
+
+ tegra_i2s_debug_remove(i2s);
+
+ clk_put(i2s->clk_i2s);
+
+ return 0;
+}
+
+static const struct of_device_id tegra_i2s_of_match[] __devinitconst = {
+ { .compatible = "nvidia,tegra20-i2s", },
+ {},
+};
+
+static struct platform_driver tegra_i2s_driver = {
+ .driver = {
+ .name = DRV_NAME,
+ .owner = THIS_MODULE,
+ .of_match_table = tegra_i2s_of_match,
+ },
+ .probe = tegra_i2s_platform_probe,
+ .remove = __devexit_p(tegra_i2s_platform_remove),
+};
+module_platform_driver(tegra_i2s_driver);
+
+MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>");
+MODULE_DESCRIPTION("Tegra I2S ASoC driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" DRV_NAME);
+MODULE_DEVICE_TABLE(of, tegra_i2s_of_match);
--- /dev/null
+/*
+ * tegra20_i2s.h - Definitions for Tegra20 I2S driver
+ *
+ * Author: Stephen Warren <swarren@nvidia.com>
+ * Copyright (C) 2010 - NVIDIA, Inc.
+ *
+ * Based on code copyright/by:
+ *
+ * Copyright (c) 2009-2010, NVIDIA Corporation.
+ * Scott Peterson <speterson@nvidia.com>
+ *
+ * Copyright (C) 2010 Google, Inc.
+ * Iliyan Malchev <malchev@google.com>
+ *
+ * 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
+ *
+ */
+
+#ifndef __TEGRA_I2S_H__
+#define __TEGRA_I2S_H__
+
+#include "tegra_pcm.h"
+
+/* Register offsets from TEGRA_I2S1_BASE and TEGRA_I2S2_BASE */
+
+#define TEGRA_I2S_CTRL 0x00
+#define TEGRA_I2S_STATUS 0x04
+#define TEGRA_I2S_TIMING 0x08
+#define TEGRA_I2S_FIFO_SCR 0x0c
+#define TEGRA_I2S_PCM_CTRL 0x10
+#define TEGRA_I2S_NW_CTRL 0x14
+#define TEGRA_I2S_TDM_CTRL 0x20
+#define TEGRA_I2S_TDM_TX_RX_CTRL 0x24
+#define TEGRA_I2S_FIFO1 0x40
+#define TEGRA_I2S_FIFO2 0x80
+
+/* Fields in TEGRA_I2S_CTRL */
+
+#define TEGRA_I2S_CTRL_FIFO2_TX_ENABLE (1 << 30)
+#define TEGRA_I2S_CTRL_FIFO1_ENABLE (1 << 29)
+#define TEGRA_I2S_CTRL_FIFO2_ENABLE (1 << 28)
+#define TEGRA_I2S_CTRL_FIFO1_RX_ENABLE (1 << 27)
+#define TEGRA_I2S_CTRL_FIFO_LPBK_ENABLE (1 << 26)
+#define TEGRA_I2S_CTRL_MASTER_ENABLE (1 << 25)
+
+#define TEGRA_I2S_LRCK_LEFT_LOW 0
+#define TEGRA_I2S_LRCK_RIGHT_LOW 1
+
+#define TEGRA_I2S_CTRL_LRCK_SHIFT 24
+#define TEGRA_I2S_CTRL_LRCK_MASK (1 << TEGRA_I2S_CTRL_LRCK_SHIFT)
+#define TEGRA_I2S_CTRL_LRCK_L_LOW (TEGRA_I2S_LRCK_LEFT_LOW << TEGRA_I2S_CTRL_LRCK_SHIFT)
+#define TEGRA_I2S_CTRL_LRCK_R_LOW (TEGRA_I2S_LRCK_RIGHT_LOW << TEGRA_I2S_CTRL_LRCK_SHIFT)
+
+#define TEGRA_I2S_BIT_FORMAT_I2S 0
+#define TEGRA_I2S_BIT_FORMAT_RJM 1
+#define TEGRA_I2S_BIT_FORMAT_LJM 2
+#define TEGRA_I2S_BIT_FORMAT_DSP 3
+
+#define TEGRA_I2S_CTRL_BIT_FORMAT_SHIFT 10
+#define TEGRA_I2S_CTRL_BIT_FORMAT_MASK (3 << TEGRA_I2S_CTRL_BIT_FORMAT_SHIFT)
+#define TEGRA_I2S_CTRL_BIT_FORMAT_I2S (TEGRA_I2S_BIT_FORMAT_I2S << TEGRA_I2S_CTRL_BIT_FORMAT_SHIFT)
+#define TEGRA_I2S_CTRL_BIT_FORMAT_RJM (TEGRA_I2S_BIT_FORMAT_RJM << TEGRA_I2S_CTRL_BIT_FORMAT_SHIFT)
+#define TEGRA_I2S_CTRL_BIT_FORMAT_LJM (TEGRA_I2S_BIT_FORMAT_LJM << TEGRA_I2S_CTRL_BIT_FORMAT_SHIFT)
+#define TEGRA_I2S_CTRL_BIT_FORMAT_DSP (TEGRA_I2S_BIT_FORMAT_DSP << TEGRA_I2S_CTRL_BIT_FORMAT_SHIFT)
+
+#define TEGRA_I2S_BIT_SIZE_16 0
+#define TEGRA_I2S_BIT_SIZE_20 1
+#define TEGRA_I2S_BIT_SIZE_24 2
+#define TEGRA_I2S_BIT_SIZE_32 3
+
+#define TEGRA_I2S_CTRL_BIT_SIZE_SHIFT 8
+#define TEGRA_I2S_CTRL_BIT_SIZE_MASK (3 << TEGRA_I2S_CTRL_BIT_SIZE_SHIFT)
+#define TEGRA_I2S_CTRL_BIT_SIZE_16 (TEGRA_I2S_BIT_SIZE_16 << TEGRA_I2S_CTRL_BIT_SIZE_SHIFT)
+#define TEGRA_I2S_CTRL_BIT_SIZE_20 (TEGRA_I2S_BIT_SIZE_20 << TEGRA_I2S_CTRL_BIT_SIZE_SHIFT)
+#define TEGRA_I2S_CTRL_BIT_SIZE_24 (TEGRA_I2S_BIT_SIZE_24 << TEGRA_I2S_CTRL_BIT_SIZE_SHIFT)
+#define TEGRA_I2S_CTRL_BIT_SIZE_32 (TEGRA_I2S_BIT_SIZE_32 << TEGRA_I2S_CTRL_BIT_SIZE_SHIFT)
+
+#define TEGRA_I2S_FIFO_16_LSB 0
+#define TEGRA_I2S_FIFO_20_LSB 1
+#define TEGRA_I2S_FIFO_24_LSB 2
+#define TEGRA_I2S_FIFO_32 3
+#define TEGRA_I2S_FIFO_PACKED 7
+
+#define TEGRA_I2S_CTRL_FIFO_FORMAT_SHIFT 4
+#define TEGRA_I2S_CTRL_FIFO_FORMAT_MASK (7 << TEGRA_I2S_CTRL_FIFO_FORMAT_SHIFT)
+#define TEGRA_I2S_CTRL_FIFO_FORMAT_16_LSB (TEGRA_I2S_FIFO_16_LSB << TEGRA_I2S_CTRL_FIFO_FORMAT_SHIFT)
+#define TEGRA_I2S_CTRL_FIFO_FORMAT_20_LSB (TEGRA_I2S_FIFO_20_LSB << TEGRA_I2S_CTRL_FIFO_FORMAT_SHIFT)
+#define TEGRA_I2S_CTRL_FIFO_FORMAT_24_LSB (TEGRA_I2S_FIFO_24_LSB << TEGRA_I2S_CTRL_FIFO_FORMAT_SHIFT)
+#define TEGRA_I2S_CTRL_FIFO_FORMAT_32 (TEGRA_I2S_FIFO_32 << TEGRA_I2S_CTRL_FIFO_FORMAT_SHIFT)
+#define TEGRA_I2S_CTRL_FIFO_FORMAT_PACKED (TEGRA_I2S_FIFO_PACKED << TEGRA_I2S_CTRL_FIFO_FORMAT_SHIFT)
+
+#define TEGRA_I2S_CTRL_IE_FIFO1_ERR (1 << 3)
+#define TEGRA_I2S_CTRL_IE_FIFO2_ERR (1 << 2)
+#define TEGRA_I2S_CTRL_QE_FIFO1 (1 << 1)
+#define TEGRA_I2S_CTRL_QE_FIFO2 (1 << 0)
+
+/* Fields in TEGRA_I2S_STATUS */
+
+#define TEGRA_I2S_STATUS_FIFO1_RDY (1 << 31)
+#define TEGRA_I2S_STATUS_FIFO2_RDY (1 << 30)
+#define TEGRA_I2S_STATUS_FIFO1_BSY (1 << 29)
+#define TEGRA_I2S_STATUS_FIFO2_BSY (1 << 28)
+#define TEGRA_I2S_STATUS_FIFO1_ERR (1 << 3)
+#define TEGRA_I2S_STATUS_FIFO2_ERR (1 << 2)
+#define TEGRA_I2S_STATUS_QS_FIFO1 (1 << 1)
+#define TEGRA_I2S_STATUS_QS_FIFO2 (1 << 0)
+
+/* Fields in TEGRA_I2S_TIMING */
+
+#define TEGRA_I2S_TIMING_NON_SYM_ENABLE (1 << 12)
+#define TEGRA_I2S_TIMING_CHANNEL_BIT_COUNT_SHIFT 0
+#define TEGRA_I2S_TIMING_CHANNEL_BIT_COUNT_MASK_US 0x7fff
+#define TEGRA_I2S_TIMING_CHANNEL_BIT_COUNT_MASK (TEGRA_I2S_TIMING_CHANNEL_BIT_COUNT_MASK_US << TEGRA_I2S_TIMING_CHANNEL_BIT_COUNT_SHIFT)
+
+/* Fields in TEGRA_I2S_FIFO_SCR */
+
+#define TEGRA_I2S_FIFO_SCR_FIFO2_FULL_EMPTY_COUNT_SHIFT 24
+#define TEGRA_I2S_FIFO_SCR_FIFO1_FULL_EMPTY_COUNT_SHIFT 16
+#define TEGRA_I2S_FIFO_SCR_FIFO_FULL_EMPTY_COUNT_MASK 0x3f
+
+#define TEGRA_I2S_FIFO_SCR_FIFO2_CLR (1 << 12)
+#define TEGRA_I2S_FIFO_SCR_FIFO1_CLR (1 << 8)
+
+#define TEGRA_I2S_FIFO_ATN_LVL_ONE_SLOT 0
+#define TEGRA_I2S_FIFO_ATN_LVL_FOUR_SLOTS 1
+#define TEGRA_I2S_FIFO_ATN_LVL_EIGHT_SLOTS 2
+#define TEGRA_I2S_FIFO_ATN_LVL_TWELVE_SLOTS 3
+
+#define TEGRA_I2S_FIFO_SCR_FIFO2_ATN_LVL_SHIFT 4
+#define TEGRA_I2S_FIFO_SCR_FIFO2_ATN_LVL_MASK (3 << TEGRA_I2S_FIFO_SCR_FIFO2_ATN_LVL_SHIFT)
+#define TEGRA_I2S_FIFO_SCR_FIFO2_ATN_LVL_ONE_SLOT (TEGRA_I2S_FIFO_ATN_LVL_ONE_SLOT << TEGRA_I2S_FIFO_SCR_FIFO2_ATN_LVL_SHIFT)
+#define TEGRA_I2S_FIFO_SCR_FIFO2_ATN_LVL_FOUR_SLOTS (TEGRA_I2S_FIFO_ATN_LVL_FOUR_SLOTS << TEGRA_I2S_FIFO_SCR_FIFO2_ATN_LVL_SHIFT)
+#define TEGRA_I2S_FIFO_SCR_FIFO2_ATN_LVL_EIGHT_SLOTS (TEGRA_I2S_FIFO_ATN_LVL_EIGHT_SLOTS << TEGRA_I2S_FIFO_SCR_FIFO2_ATN_LVL_SHIFT)
+#define TEGRA_I2S_FIFO_SCR_FIFO2_ATN_LVL_TWELVE_SLOTS (TEGRA_I2S_FIFO_ATN_LVL_TWELVE_SLOTS << TEGRA_I2S_FIFO_SCR_FIFO2_ATN_LVL_SHIFT)
+
+#define TEGRA_I2S_FIFO_SCR_FIFO1_ATN_LVL_SHIFT 0
+#define TEGRA_I2S_FIFO_SCR_FIFO1_ATN_LVL_MASK (3 << TEGRA_I2S_FIFO_SCR_FIFO1_ATN_LVL_SHIFT)
+#define TEGRA_I2S_FIFO_SCR_FIFO1_ATN_LVL_ONE_SLOT (TEGRA_I2S_FIFO_ATN_LVL_ONE_SLOT << TEGRA_I2S_FIFO_SCR_FIFO1_ATN_LVL_SHIFT)
+#define TEGRA_I2S_FIFO_SCR_FIFO1_ATN_LVL_FOUR_SLOTS (TEGRA_I2S_FIFO_ATN_LVL_FOUR_SLOTS << TEGRA_I2S_FIFO_SCR_FIFO1_ATN_LVL_SHIFT)
+#define TEGRA_I2S_FIFO_SCR_FIFO1_ATN_LVL_EIGHT_SLOTS (TEGRA_I2S_FIFO_ATN_LVL_EIGHT_SLOTS << TEGRA_I2S_FIFO_SCR_FIFO1_ATN_LVL_SHIFT)
+#define TEGRA_I2S_FIFO_SCR_FIFO1_ATN_LVL_TWELVE_SLOTS (TEGRA_I2S_FIFO_ATN_LVL_TWELVE_SLOTS << TEGRA_I2S_FIFO_SCR_FIFO1_ATN_LVL_SHIFT)
+
+struct tegra_i2s {
+ struct snd_soc_dai_driver dai;
+ struct clk *clk_i2s;
+ struct tegra_pcm_dma_params capture_dma_data;
+ struct tegra_pcm_dma_params playback_dma_data;
+ void __iomem *regs;
+ struct dentry *debug;
+ u32 reg_ctrl;
+};
+
+#endif
--- /dev/null
+/*
+ * tegra20_spdif.c - Tegra20 SPDIF driver
+ *
+ * Author: Stephen Warren <swarren@nvidia.com>
+ * Copyright (C) 2011-2012 - 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/clk.h>
+#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/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#include "tegra20_spdif.h"
+
+#define DRV_NAME "tegra-spdif"
+
+static inline void tegra_spdif_write(struct tegra_spdif *spdif, u32 reg,
+ u32 val)
+{
+ __raw_writel(val, spdif->regs + reg);
+}
+
+static inline u32 tegra_spdif_read(struct tegra_spdif *spdif, u32 reg)
+{
+ return __raw_readl(spdif->regs + reg);
+}
+
+#ifdef CONFIG_DEBUG_FS
+static int tegra_spdif_show(struct seq_file *s, void *unused)
+{
+#define REG(r) { r, #r }
+ static const struct {
+ int offset;
+ const char *name;
+ } regs[] = {
+ REG(TEGRA_SPDIF_CTRL),
+ REG(TEGRA_SPDIF_STATUS),
+ REG(TEGRA_SPDIF_STROBE_CTRL),
+ REG(TEGRA_SPDIF_DATA_FIFO_CSR),
+ REG(TEGRA_SPDIF_CH_STA_RX_A),
+ REG(TEGRA_SPDIF_CH_STA_RX_B),
+ REG(TEGRA_SPDIF_CH_STA_RX_C),
+ REG(TEGRA_SPDIF_CH_STA_RX_D),
+ REG(TEGRA_SPDIF_CH_STA_RX_E),
+ REG(TEGRA_SPDIF_CH_STA_RX_F),
+ REG(TEGRA_SPDIF_CH_STA_TX_A),
+ REG(TEGRA_SPDIF_CH_STA_TX_B),
+ REG(TEGRA_SPDIF_CH_STA_TX_C),
+ REG(TEGRA_SPDIF_CH_STA_TX_D),
+ REG(TEGRA_SPDIF_CH_STA_TX_E),
+ REG(TEGRA_SPDIF_CH_STA_TX_F),
+ };
+#undef REG
+
+ struct tegra_spdif *spdif = s->private;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(regs); i++) {
+ u32 val = tegra_spdif_read(spdif, regs[i].offset);
+ seq_printf(s, "%s = %08x\n", regs[i].name, val);
+ }
+
+ return 0;
+}
+
+static int tegra_spdif_debug_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, tegra_spdif_show, inode->i_private);
+}
+
+static const struct file_operations tegra_spdif_debug_fops = {
+ .open = tegra_spdif_debug_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static void tegra_spdif_debug_add(struct tegra_spdif *spdif)
+{
+ spdif->debug = debugfs_create_file(DRV_NAME, S_IRUGO,
+ snd_soc_debugfs_root, spdif,
+ &tegra_spdif_debug_fops);
+}
+
+static void tegra_spdif_debug_remove(struct tegra_spdif *spdif)
+{
+ if (spdif->debug)
+ debugfs_remove(spdif->debug);
+}
+#else
+static inline void tegra_spdif_debug_add(struct tegra_spdif *spdif)
+{
+}
+
+static inline void tegra_spdif_debug_remove(struct tegra_spdif *spdif)
+{
+}
+#endif
+
+static int tegra_spdif_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct device *dev = substream->pcm->card->dev;
+ struct tegra_spdif *spdif = snd_soc_dai_get_drvdata(dai);
+ int ret, spdifclock;
+
+ spdif->reg_ctrl &= ~TEGRA_SPDIF_CTRL_PACK;
+ spdif->reg_ctrl &= ~TEGRA_SPDIF_CTRL_BIT_MODE_MASK;
+ switch (params_format(params)) {
+ case SNDRV_PCM_FORMAT_S16_LE:
+ spdif->reg_ctrl |= TEGRA_SPDIF_CTRL_PACK;
+ spdif->reg_ctrl |= TEGRA_SPDIF_CTRL_BIT_MODE_16BIT;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ switch (params_rate(params)) {
+ case 32000:
+ spdifclock = 4096000;
+ break;
+ case 44100:
+ spdifclock = 5644800;
+ break;
+ case 48000:
+ spdifclock = 6144000;
+ break;
+ case 88200:
+ spdifclock = 11289600;
+ break;
+ case 96000:
+ spdifclock = 12288000;
+ break;
+ case 176400:
+ spdifclock = 22579200;
+ break;
+ case 192000:
+ spdifclock = 24576000;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ ret = clk_set_rate(spdif->clk_spdif_out, spdifclock);
+ if (ret) {
+ dev_err(dev, "Can't set SPDIF clock rate: %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static void tegra_spdif_start_playback(struct tegra_spdif *spdif)
+{
+ spdif->reg_ctrl |= TEGRA_SPDIF_CTRL_TX_EN;
+ tegra_spdif_write(spdif, TEGRA_SPDIF_CTRL, spdif->reg_ctrl);
+}
+
+static void tegra_spdif_stop_playback(struct tegra_spdif *spdif)
+{
+ spdif->reg_ctrl &= ~TEGRA_SPDIF_CTRL_TX_EN;
+ tegra_spdif_write(spdif, TEGRA_SPDIF_CTRL, spdif->reg_ctrl);
+}
+
+static int tegra_spdif_trigger(struct snd_pcm_substream *substream, int cmd,
+ struct snd_soc_dai *dai)
+{
+ struct tegra_spdif *spdif = snd_soc_dai_get_drvdata(dai);
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ clk_enable(spdif->clk_spdif_out);
+ tegra_spdif_start_playback(spdif);
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ tegra_spdif_stop_playback(spdif);
+ clk_disable(spdif->clk_spdif_out);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int tegra_spdif_probe(struct snd_soc_dai *dai)
+{
+ struct tegra_spdif *spdif = snd_soc_dai_get_drvdata(dai);
+
+ dai->capture_dma_data = NULL;
+ dai->playback_dma_data = &spdif->playback_dma_data;
+
+ return 0;
+}
+
+static const struct snd_soc_dai_ops tegra_spdif_dai_ops = {
+ .hw_params = tegra_spdif_hw_params,
+ .trigger = tegra_spdif_trigger,
+};
+
+static struct snd_soc_dai_driver tegra_spdif_dai = {
+ .name = DRV_NAME,
+ .probe = tegra_spdif_probe,
+ .playback = {
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |
+ SNDRV_PCM_RATE_48000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+ },
+ .ops = &tegra_spdif_dai_ops,
+};
+
+static __devinit int tegra_spdif_platform_probe(struct platform_device *pdev)
+{
+ struct tegra_spdif *spdif;
+ struct resource *mem, *memregion, *dmareq;
+ int ret;
+
+ spdif = kzalloc(sizeof(struct tegra_spdif), GFP_KERNEL);
+ if (!spdif) {
+ dev_err(&pdev->dev, "Can't allocate tegra_spdif\n");
+ ret = -ENOMEM;
+ goto exit;
+ }
+ dev_set_drvdata(&pdev->dev, spdif);
+
+ spdif->clk_spdif_out = clk_get(&pdev->dev, "spdif_out");
+ if (IS_ERR(spdif->clk_spdif_out)) {
+ pr_err("Can't retrieve spdif clock\n");
+ ret = PTR_ERR(spdif->clk_spdif_out);
+ goto err_free;
+ }
+
+ mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!mem) {
+ dev_err(&pdev->dev, "No memory resource\n");
+ ret = -ENODEV;
+ goto err_clk_put;
+ }
+
+ dmareq = platform_get_resource(pdev, IORESOURCE_DMA, 0);
+ if (!dmareq) {
+ dev_err(&pdev->dev, "No DMA resource\n");
+ ret = -ENODEV;
+ goto err_clk_put;
+ }
+
+ memregion = request_mem_region(mem->start, resource_size(mem),
+ DRV_NAME);
+ if (!memregion) {
+ dev_err(&pdev->dev, "Memory region already claimed\n");
+ ret = -EBUSY;
+ goto err_clk_put;
+ }
+
+ spdif->regs = ioremap(mem->start, resource_size(mem));
+ if (!spdif->regs) {
+ dev_err(&pdev->dev, "ioremap failed\n");
+ ret = -ENOMEM;
+ goto err_release;
+ }
+
+ spdif->playback_dma_data.addr = mem->start + TEGRA_SPDIF_DATA_OUT;
+ spdif->playback_dma_data.wrap = 4;
+ spdif->playback_dma_data.width = 32;
+ spdif->playback_dma_data.req_sel = dmareq->start;
+
+ ret = snd_soc_register_dai(&pdev->dev, &tegra_spdif_dai);
+ if (ret) {
+ dev_err(&pdev->dev, "Could not register DAI: %d\n", ret);
+ ret = -ENOMEM;
+ goto err_unmap;
+ }
+
+ ret = tegra_pcm_platform_register(&pdev->dev);
+ if (ret) {
+ dev_err(&pdev->dev, "Could not register PCM: %d\n", ret);
+ goto err_unregister_dai;
+ }
+
+ tegra_spdif_debug_add(spdif);
+
+ return 0;
+
+err_unregister_dai:
+ snd_soc_unregister_dai(&pdev->dev);
+err_unmap:
+ iounmap(spdif->regs);
+err_release:
+ release_mem_region(mem->start, resource_size(mem));
+err_clk_put:
+ clk_put(spdif->clk_spdif_out);
+err_free:
+ kfree(spdif);
+exit:
+ return ret;
+}
+
+static int __devexit tegra_spdif_platform_remove(struct platform_device *pdev)
+{
+ struct tegra_spdif *spdif = dev_get_drvdata(&pdev->dev);
+ struct resource *res;
+
+ tegra_pcm_platform_unregister(&pdev->dev);
+ snd_soc_unregister_dai(&pdev->dev);
+
+ tegra_spdif_debug_remove(spdif);
+
+ iounmap(spdif->regs);
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ release_mem_region(res->start, resource_size(res));
+
+ clk_put(spdif->clk_spdif_out);
+
+ kfree(spdif);
+
+ return 0;
+}
+
+static struct platform_driver tegra_spdif_driver = {
+ .driver = {
+ .name = DRV_NAME,
+ .owner = THIS_MODULE,
+ },
+ .probe = tegra_spdif_platform_probe,
+ .remove = __devexit_p(tegra_spdif_platform_remove),
+};
+
+module_platform_driver(tegra_spdif_driver);
+
+MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>");
+MODULE_DESCRIPTION("Tegra SPDIF ASoC driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" DRV_NAME);
--- /dev/null
+/*
+ * tegra20_spdif.h - Definitions for Tegra20 SPDIF driver
+ *
+ * Author: Stephen Warren <swarren@nvidia.com>
+ * Copyright (C) 2011 - NVIDIA, Inc.
+ *
+ * Based on code copyright/by:
+ * Copyright (c) 2008-2009, NVIDIA Corporation
+ *
+ * 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
+ *
+ */
+
+#ifndef __TEGRA_SPDIF_H__
+#define __TEGRA_SPDIF_H__
+
+#include "tegra_pcm.h"
+
+/* Offsets from TEGRA_SPDIF_BASE */
+
+#define TEGRA_SPDIF_CTRL 0x0
+#define TEGRA_SPDIF_STATUS 0x4
+#define TEGRA_SPDIF_STROBE_CTRL 0x8
+#define TEGRA_SPDIF_DATA_FIFO_CSR 0x0C
+#define TEGRA_SPDIF_DATA_OUT 0x40
+#define TEGRA_SPDIF_DATA_IN 0x80
+#define TEGRA_SPDIF_CH_STA_RX_A 0x100
+#define TEGRA_SPDIF_CH_STA_RX_B 0x104
+#define TEGRA_SPDIF_CH_STA_RX_C 0x108
+#define TEGRA_SPDIF_CH_STA_RX_D 0x10C
+#define TEGRA_SPDIF_CH_STA_RX_E 0x110
+#define TEGRA_SPDIF_CH_STA_RX_F 0x114
+#define TEGRA_SPDIF_CH_STA_TX_A 0x140
+#define TEGRA_SPDIF_CH_STA_TX_B 0x144
+#define TEGRA_SPDIF_CH_STA_TX_C 0x148
+#define TEGRA_SPDIF_CH_STA_TX_D 0x14C
+#define TEGRA_SPDIF_CH_STA_TX_E 0x150
+#define TEGRA_SPDIF_CH_STA_TX_F 0x154
+#define TEGRA_SPDIF_USR_STA_RX_A 0x180
+#define TEGRA_SPDIF_USR_DAT_TX_A 0x1C0
+
+/* Fields in TEGRA_SPDIF_CTRL */
+
+/* Start capturing from 0=right, 1=left channel */
+#define TEGRA_SPDIF_CTRL_CAP_LC (1 << 30)
+
+/* SPDIF receiver(RX) enable */
+#define TEGRA_SPDIF_CTRL_RX_EN (1 << 29)
+
+/* SPDIF Transmitter(TX) enable */
+#define TEGRA_SPDIF_CTRL_TX_EN (1 << 28)
+
+/* Transmit Channel status */
+#define TEGRA_SPDIF_CTRL_TC_EN (1 << 27)
+
+/* Transmit user Data */
+#define TEGRA_SPDIF_CTRL_TU_EN (1 << 26)
+
+/* Interrupt on transmit error */
+#define TEGRA_SPDIF_CTRL_IE_TXE (1 << 25)
+
+/* Interrupt on receive error */
+#define TEGRA_SPDIF_CTRL_IE_RXE (1 << 24)
+
+/* Interrupt on invalid preamble */
+#define TEGRA_SPDIF_CTRL_IE_P (1 << 23)
+
+/* Interrupt on "B" preamble */
+#define TEGRA_SPDIF_CTRL_IE_B (1 << 22)
+
+/* Interrupt when block of channel status received */
+#define TEGRA_SPDIF_CTRL_IE_C (1 << 21)
+
+/* Interrupt when a valid information unit (IU) is received */
+#define TEGRA_SPDIF_CTRL_IE_U (1 << 20)
+
+/* Interrupt when RX user FIFO attention level is reached */
+#define TEGRA_SPDIF_CTRL_QE_RU (1 << 19)
+
+/* Interrupt when TX user FIFO attention level is reached */
+#define TEGRA_SPDIF_CTRL_QE_TU (1 << 18)
+
+/* Interrupt when RX data FIFO attention level is reached */
+#define TEGRA_SPDIF_CTRL_QE_RX (1 << 17)
+
+/* Interrupt when TX data FIFO attention level is reached */
+#define TEGRA_SPDIF_CTRL_QE_TX (1 << 16)
+
+/* Loopback test mode enable */
+#define TEGRA_SPDIF_CTRL_LBK_EN (1 << 15)
+
+/*
+ * Pack data mode:
+ * 0 = Single data (16 bit needs to be padded to match the
+ * interface data bit size).
+ * 1 = Packeted left/right channel data into a single word.
+ */
+#define TEGRA_SPDIF_CTRL_PACK (1 << 14)
+
+/*
+ * 00 = 16bit data
+ * 01 = 20bit data
+ * 10 = 24bit data
+ * 11 = raw data
+ */
+#define TEGRA_SPDIF_BIT_MODE_16BIT 0
+#define TEGRA_SPDIF_BIT_MODE_20BIT 1
+#define TEGRA_SPDIF_BIT_MODE_24BIT 2
+#define TEGRA_SPDIF_BIT_MODE_RAW 3
+
+#define TEGRA_SPDIF_CTRL_BIT_MODE_SHIFT 12
+#define TEGRA_SPDIF_CTRL_BIT_MODE_MASK (3 << TEGRA_SPDIF_CTRL_BIT_MODE_SHIFT)
+#define TEGRA_SPDIF_CTRL_BIT_MODE_16BIT (TEGRA_SPDIF_BIT_MODE_16BIT << TEGRA_SPDIF_CTRL_BIT_MODE_SHIFT)
+#define TEGRA_SPDIF_CTRL_BIT_MODE_20BIT (TEGRA_SPDIF_BIT_MODE_20BIT << TEGRA_SPDIF_CTRL_BIT_MODE_SHIFT)
+#define TEGRA_SPDIF_CTRL_BIT_MODE_24BIT (TEGRA_SPDIF_BIT_MODE_24BIT << TEGRA_SPDIF_CTRL_BIT_MODE_SHIFT)
+#define TEGRA_SPDIF_CTRL_BIT_MODE_RAW (TEGRA_SPDIF_BIT_MODE_RAW << TEGRA_SPDIF_CTRL_BIT_MODE_SHIFT)
+
+/* Fields in TEGRA_SPDIF_STATUS */
+
+/*
+ * Note: IS_P, IS_B, IS_C, and IS_U are sticky bits. Software must
+ * write a 1 to the corresponding bit location to clear the status.
+ */
+
+/*
+ * Receiver(RX) shifter is busy receiving data.
+ * This bit is asserted when the receiver first locked onto the
+ * preamble of the data stream after RX_EN is asserted. This bit is
+ * deasserted when either,
+ * (a) the end of a frame is reached after RX_EN is deeasserted, or
+ * (b) the SPDIF data stream becomes inactive.
+ */
+#define TEGRA_SPDIF_STATUS_RX_BSY (1 << 29)
+
+/*
+ * Transmitter(TX) shifter is busy transmitting data.
+ * This bit is asserted when TX_EN is asserted.
+ * This bit is deasserted when the end of a frame is reached after
+ * TX_EN is deasserted.
+ */
+#define TEGRA_SPDIF_STATUS_TX_BSY (1 << 28)
+
+/*
+ * TX is busy shifting out channel status.
+ * This bit is asserted when both TX_EN and TC_EN are asserted and
+ * data from CH_STA_TX_A register is loaded into the internal shifter.
+ * This bit is deasserted when either,
+ * (a) the end of a frame is reached after TX_EN is deasserted, or
+ * (b) CH_STA_TX_F register is loaded into the internal shifter.
+ */
+#define TEGRA_SPDIF_STATUS_TC_BSY (1 << 27)
+
+/*
+ * TX User data FIFO busy.
+ * This bit is asserted when TX_EN and TXU_EN are asserted and
+ * there's data in the TX user FIFO. This bit is deassert when either,
+ * (a) the end of a frame is reached after TX_EN is deasserted, or
+ * (b) there's no data left in the TX user FIFO.
+ */
+#define TEGRA_SPDIF_STATUS_TU_BSY (1 << 26)
+
+/* TX FIFO Underrun error status */
+#define TEGRA_SPDIF_STATUS_TX_ERR (1 << 25)
+
+/* RX FIFO Overrun error status */
+#define TEGRA_SPDIF_STATUS_RX_ERR (1 << 24)
+
+/* Preamble status: 0=Preamble OK, 1=bad/missing preamble */
+#define TEGRA_SPDIF_STATUS_IS_P (1 << 23)
+
+/* B-preamble detection status: 0=not detected, 1=B-preamble detected */
+#define TEGRA_SPDIF_STATUS_IS_B (1 << 22)
+
+/*
+ * RX channel block data receive status:
+ * 0=entire block not recieved yet.
+ * 1=received entire block of channel status,
+ */
+#define TEGRA_SPDIF_STATUS_IS_C (1 << 21)
+
+/* RX User Data Valid flag: 1=valid IU detected, 0 = no IU detected. */
+#define TEGRA_SPDIF_STATUS_IS_U (1 << 20)
+
+/*
+ * RX User FIFO Status:
+ * 1=attention level reached, 0=attention level not reached.
+ */
+#define TEGRA_SPDIF_STATUS_QS_RU (1 << 19)
+
+/*
+ * TX User FIFO Status:
+ * 1=attention level reached, 0=attention level not reached.
+ */
+#define TEGRA_SPDIF_STATUS_QS_TU (1 << 18)
+
+/*
+ * RX Data FIFO Status:
+ * 1=attention level reached, 0=attention level not reached.
+ */
+#define TEGRA_SPDIF_STATUS_QS_RX (1 << 17)
+
+/*
+ * TX Data FIFO Status:
+ * 1=attention level reached, 0=attention level not reached.
+ */
+#define TEGRA_SPDIF_STATUS_QS_TX (1 << 16)
+
+/* Fields in TEGRA_SPDIF_STROBE_CTRL */
+
+/*
+ * Indicates the approximate number of detected SPDIFIN clocks within a
+ * bi-phase period.
+ */
+#define TEGRA_SPDIF_STROBE_CTRL_PERIOD_SHIFT 16
+#define TEGRA_SPDIF_STROBE_CTRL_PERIOD_MASK (0xff << TEGRA_SPDIF_STROBE_CTRL_PERIOD_SHIFT)
+
+/* Data strobe mode: 0=Auto-locked 1=Manual locked */
+#define TEGRA_SPDIF_STROBE_CTRL_STROBE (1 << 15)
+
+/*
+ * Manual data strobe time within the bi-phase clock period (in terms of
+ * the number of over-sampling clocks).
+ */
+#define TEGRA_SPDIF_STROBE_CTRL_DATA_STROBES_SHIFT 8
+#define TEGRA_SPDIF_STROBE_CTRL_DATA_STROBES_MASK (0x1f << TEGRA_SPDIF_STROBE_CTRL_DATA_STROBES_SHIFT)
+
+/*
+ * Manual SPDIFIN bi-phase clock period (in terms of the number of
+ * over-sampling clocks).
+ */
+#define TEGRA_SPDIF_STROBE_CTRL_CLOCK_PERIOD_SHIFT 0
+#define TEGRA_SPDIF_STROBE_CTRL_CLOCK_PERIOD_MASK (0x3f << TEGRA_SPDIF_STROBE_CTRL_CLOCK_PERIOD_SHIFT)
+
+/* Fields in SPDIF_DATA_FIFO_CSR */
+
+/* Clear Receiver User FIFO (RX USR.FIFO) */
+#define TEGRA_SPDIF_DATA_FIFO_CSR_RU_CLR (1 << 31)
+
+#define TEGRA_SPDIF_FIFO_ATN_LVL_U_ONE_SLOT 0
+#define TEGRA_SPDIF_FIFO_ATN_LVL_U_TWO_SLOTS 1
+#define TEGRA_SPDIF_FIFO_ATN_LVL_U_THREE_SLOTS 2
+#define TEGRA_SPDIF_FIFO_ATN_LVL_U_FOUR_SLOTS 3
+
+/* RU FIFO attention level */
+#define TEGRA_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_SHIFT 29
+#define TEGRA_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_MASK \
+ (0x3 << TEGRA_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_SHIFT)
+#define TEGRA_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_RU1_WORD_FULL \
+ (TEGRA_SPDIF_FIFO_ATN_LVL_U_ONE_SLOT << TEGRA_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_SHIFT)
+#define TEGRA_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_RU2_WORD_FULL \
+ (TEGRA_SPDIF_FIFO_ATN_LVL_U_TWO_SLOTS << TEGRA_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_SHIFT)
+#define TEGRA_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_RU3_WORD_FULL \
+ (TEGRA_SPDIF_FIFO_ATN_LVL_U_THREE_SLOTS << TEGRA_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_SHIFT)
+#define TEGRA_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_RU4_WORD_FULL \
+ (TEGRA_SPDIF_FIFO_ATN_LVL_U_FOUR_SLOTS << TEGRA_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_SHIFT)
+
+/* Number of RX USR.FIFO levels with valid data. */
+#define TEGRA_SPDIF_DATA_FIFO_CSR_RU_FULL_COUNT_SHIFT 24
+#define TEGRA_SPDIF_DATA_FIFO_CSR_RU_FULL_COUNT_MASK (0x1f << TEGRA_SPDIF_DATA_FIFO_CSR_RU_FULL_COUNT_SHIFT)
+
+/* Clear Transmitter User FIFO (TX USR.FIFO) */
+#define TEGRA_SPDIF_DATA_FIFO_CSR_TU_CLR (1 << 23)
+
+/* TU FIFO attention level */
+#define TEGRA_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_SHIFT 21
+#define TEGRA_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_MASK \
+ (0x3 << TEGRA_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_SHIFT)
+#define TEGRA_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_TU1_WORD_FULL \
+ (TEGRA_SPDIF_FIFO_ATN_LVL_U_ONE_SLOT << TEGRA_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_SHIFT)
+#define TEGRA_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_TU2_WORD_FULL \
+ (TEGRA_SPDIF_FIFO_ATN_LVL_U_TWO_SLOTS << TEGRA_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_SHIFT)
+#define TEGRA_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_TU3_WORD_FULL \
+ (TEGRA_SPDIF_FIFO_ATN_LVL_U_THREE_SLOTS << TEGRA_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_SHIFT)
+#define TEGRA_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_TU4_WORD_FULL \
+ (TEGRA_SPDIF_FIFO_ATN_LVL_U_FOUR_SLOTS << TEGRA_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_SHIFT)
+
+/* Number of TX USR.FIFO levels that could be filled. */
+#define TEGRA_SPDIF_DATA_FIFO_CSR_TU_EMPTY_COUNT_SHIFT 16
+#define TEGRA_SPDIF_DATA_FIFO_CSR_TU_EMPTY_COUNT_MASK (0x1f << SPDIF_DATA_FIFO_CSR_TU_EMPTY_COUNT_SHIFT)
+
+/* Clear Receiver Data FIFO (RX DATA.FIFO) */
+#define TEGRA_SPDIF_DATA_FIFO_CSR_RX_CLR (1 << 15)
+
+#define TEGRA_SPDIF_FIFO_ATN_LVL_D_ONE_SLOT 0
+#define TEGRA_SPDIF_FIFO_ATN_LVL_D_FOUR_SLOTS 1
+#define TEGRA_SPDIF_FIFO_ATN_LVL_D_EIGHT_SLOTS 2
+#define TEGRA_SPDIF_FIFO_ATN_LVL_D_TWELVE_SLOTS 3
+
+/* RU FIFO attention level */
+#define TEGRA_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_SHIFT 13
+#define TEGRA_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_MASK \
+ (0x3 << TEGRA_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_SHIFT)
+#define TEGRA_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_RU1_WORD_FULL \
+ (TEGRA_SPDIF_FIFO_ATN_LVL_D_ONE_SLOT << TEGRA_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_SHIFT)
+#define TEGRA_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_RU4_WORD_FULL \
+ (TEGRA_SPDIF_FIFO_ATN_LVL_D_FOUR_SLOTS << TEGRA_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_SHIFT)
+#define TEGRA_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_RU8_WORD_FULL \
+ (TEGRA_SPDIF_FIFO_ATN_LVL_D_EIGHT_SLOTS << TEGRA_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_SHIFT)
+#define TEGRA_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_RU12_WORD_FULL \
+ (TEGRA_SPDIF_FIFO_ATN_LVL_D_TWELVE_SLOTS << TEGRA_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_SHIFT)
+
+/* Number of RX DATA.FIFO levels with valid data. */
+#define TEGRA_SPDIF_DATA_FIFO_CSR_RX_FULL_COUNT_SHIFT 8
+#define TEGRA_SPDIF_DATA_FIFO_CSR_RX_FULL_COUNT_MASK (0x1f << TEGRA_SPDIF_DATA_FIFO_CSR_RX_FULL_COUNT_SHIFT)
+
+/* Clear Transmitter Data FIFO (TX DATA.FIFO) */
+#define TEGRA_SPDIF_DATA_FIFO_CSR_TX_CLR (1 << 7)
+
+/* TU FIFO attention level */
+#define TEGRA_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_SHIFT 5
+#define TEGRA_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_MASK \
+ (0x3 << TEGRA_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_SHIFT)
+#define TEGRA_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_TU1_WORD_FULL \
+ (TEGRA_SPDIF_FIFO_ATN_LVL_D_ONE_SLOT << TEGRA_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_SHIFT)
+#define TEGRA_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_TU4_WORD_FULL \
+ (TEGRA_SPDIF_FIFO_ATN_LVL_D_FOUR_SLOTS << TEGRA_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_SHIFT)
+#define TEGRA_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_TU8_WORD_FULL \
+ (TEGRA_SPDIF_FIFO_ATN_LVL_D_EIGHT_SLOTS << TEGRA_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_SHIFT)
+#define TEGRA_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_TU12_WORD_FULL \
+ (TEGRA_SPDIF_FIFO_ATN_LVL_D_TWELVE_SLOTS << TEGRA_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_SHIFT)
+
+/* Number of TX DATA.FIFO levels that could be filled. */
+#define TEGRA_SPDIF_DATA_FIFO_CSR_TX_EMPTY_COUNT_SHIFT 0
+#define TEGRA_SPDIF_DATA_FIFO_CSR_TX_EMPTY_COUNT_MASK (0x1f << SPDIF_DATA_FIFO_CSR_TX_EMPTY_COUNT_SHIFT)
+
+/* Fields in TEGRA_SPDIF_DATA_OUT */
+
+/*
+ * This register has 5 different formats:
+ * 16-bit (BIT_MODE=00, PACK=0)
+ * 20-bit (BIT_MODE=01, PACK=0)
+ * 24-bit (BIT_MODE=10, PACK=0)
+ * raw (BIT_MODE=11, PACK=0)
+ * 16-bit packed (BIT_MODE=00, PACK=1)
+ */
+
+#define TEGRA_SPDIF_DATA_OUT_DATA_16_SHIFT 0
+#define TEGRA_SPDIF_DATA_OUT_DATA_16_MASK (0xffff << TEGRA_SPDIF_DATA_OUT_DATA_16_SHIFT)
+
+#define TEGRA_SPDIF_DATA_OUT_DATA_20_SHIFT 0
+#define TEGRA_SPDIF_DATA_OUT_DATA_20_MASK (0xfffff << TEGRA_SPDIF_DATA_OUT_DATA_20_SHIFT)
+
+#define TEGRA_SPDIF_DATA_OUT_DATA_24_SHIFT 0
+#define TEGRA_SPDIF_DATA_OUT_DATA_24_MASK (0xffffff << TEGRA_SPDIF_DATA_OUT_DATA_24_SHIFT)
+
+#define TEGRA_SPDIF_DATA_OUT_DATA_RAW_P (1 << 31)
+#define TEGRA_SPDIF_DATA_OUT_DATA_RAW_C (1 << 30)
+#define TEGRA_SPDIF_DATA_OUT_DATA_RAW_U (1 << 29)
+#define TEGRA_SPDIF_DATA_OUT_DATA_RAW_V (1 << 28)
+
+#define TEGRA_SPDIF_DATA_OUT_DATA_RAW_DATA_SHIFT 8
+#define TEGRA_SPDIF_DATA_OUT_DATA_RAW_DATA_MASK (0xfffff << TEGRA_SPDIF_DATA_OUT_DATA_RAW_DATA_SHIFT)
+
+#define TEGRA_SPDIF_DATA_OUT_DATA_RAW_AUX_SHIFT 4
+#define TEGRA_SPDIF_DATA_OUT_DATA_RAW_AUX_MASK (0xf << TEGRA_SPDIF_DATA_OUT_DATA_RAW_AUX_SHIFT)
+
+#define TEGRA_SPDIF_DATA_OUT_DATA_RAW_PREAMBLE_SHIFT 0
+#define TEGRA_SPDIF_DATA_OUT_DATA_RAW_PREAMBLE_MASK (0xf << TEGRA_SPDIF_DATA_OUT_DATA_RAW_PREAMBLE_SHIFT)
+
+#define TEGRA_SPDIF_DATA_OUT_DATA_16_PACKED_RIGHT_SHIFT 16
+#define TEGRA_SPDIF_DATA_OUT_DATA_16_PACKED_RIGHT_MASK (0xffff << TEGRA_SPDIF_DATA_OUT_DATA_16_PACKED_RIGHT_SHIFT)
+
+#define TEGRA_SPDIF_DATA_OUT_DATA_16_PACKED_LEFT_SHIFT 0
+#define TEGRA_SPDIF_DATA_OUT_DATA_16_PACKED_LEFT_MASK (0xffff << TEGRA_SPDIF_DATA_OUT_DATA_16_PACKED_LEFT_SHIFT)
+
+/* Fields in TEGRA_SPDIF_DATA_IN */
+
+/*
+ * This register has 5 different formats:
+ * 16-bit (BIT_MODE=00, PACK=0)
+ * 20-bit (BIT_MODE=01, PACK=0)
+ * 24-bit (BIT_MODE=10, PACK=0)
+ * raw (BIT_MODE=11, PACK=0)
+ * 16-bit packed (BIT_MODE=00, PACK=1)
+ *
+ * Bits 31:24 are common to all modes except 16-bit packed
+ */
+
+#define TEGRA_SPDIF_DATA_IN_DATA_P (1 << 31)
+#define TEGRA_SPDIF_DATA_IN_DATA_C (1 << 30)
+#define TEGRA_SPDIF_DATA_IN_DATA_U (1 << 29)
+#define TEGRA_SPDIF_DATA_IN_DATA_V (1 << 28)
+
+#define TEGRA_SPDIF_DATA_IN_DATA_PREAMBLE_SHIFT 24
+#define TEGRA_SPDIF_DATA_IN_DATA_PREAMBLE_MASK (0xf << TEGRA_SPDIF_DATA_IN_DATA_PREAMBLE_SHIFT)
+
+#define TEGRA_SPDIF_DATA_IN_DATA_16_SHIFT 0
+#define TEGRA_SPDIF_DATA_IN_DATA_16_MASK (0xffff << TEGRA_SPDIF_DATA_IN_DATA_16_SHIFT)
+
+#define TEGRA_SPDIF_DATA_IN_DATA_20_SHIFT 0
+#define TEGRA_SPDIF_DATA_IN_DATA_20_MASK (0xfffff << TEGRA_SPDIF_DATA_IN_DATA_20_SHIFT)
+
+#define TEGRA_SPDIF_DATA_IN_DATA_24_SHIFT 0
+#define TEGRA_SPDIF_DATA_IN_DATA_24_MASK (0xffffff << TEGRA_SPDIF_DATA_IN_DATA_24_SHIFT)
+
+#define TEGRA_SPDIF_DATA_IN_DATA_RAW_DATA_SHIFT 8
+#define TEGRA_SPDIF_DATA_IN_DATA_RAW_DATA_MASK (0xfffff << TEGRA_SPDIF_DATA_IN_DATA_RAW_DATA_SHIFT)
+
+#define TEGRA_SPDIF_DATA_IN_DATA_RAW_AUX_SHIFT 4
+#define TEGRA_SPDIF_DATA_IN_DATA_RAW_AUX_MASK (0xf << TEGRA_SPDIF_DATA_IN_DATA_RAW_AUX_SHIFT)
+
+#define TEGRA_SPDIF_DATA_IN_DATA_RAW_PREAMBLE_SHIFT 0
+#define TEGRA_SPDIF_DATA_IN_DATA_RAW_PREAMBLE_MASK (0xf << TEGRA_SPDIF_DATA_IN_DATA_RAW_PREAMBLE_SHIFT)
+
+#define TEGRA_SPDIF_DATA_IN_DATA_16_PACKED_RIGHT_SHIFT 16
+#define TEGRA_SPDIF_DATA_IN_DATA_16_PACKED_RIGHT_MASK (0xffff << TEGRA_SPDIF_DATA_IN_DATA_16_PACKED_RIGHT_SHIFT)
+
+#define TEGRA_SPDIF_DATA_IN_DATA_16_PACKED_LEFT_SHIFT 0
+#define TEGRA_SPDIF_DATA_IN_DATA_16_PACKED_LEFT_MASK (0xffff << TEGRA_SPDIF_DATA_IN_DATA_16_PACKED_LEFT_SHIFT)
+
+/* Fields in TEGRA_SPDIF_CH_STA_RX_A */
+/* Fields in TEGRA_SPDIF_CH_STA_RX_B */
+/* Fields in TEGRA_SPDIF_CH_STA_RX_C */
+/* Fields in TEGRA_SPDIF_CH_STA_RX_D */
+/* Fields in TEGRA_SPDIF_CH_STA_RX_E */
+/* Fields in TEGRA_SPDIF_CH_STA_RX_F */
+
+/*
+ * The 6-word receive channel data page buffer holds a block (192 frames) of
+ * channel status information. The order of receive is from LSB to MSB
+ * bit, and from CH_STA_RX_A to CH_STA_RX_F then back to CH_STA_RX_A.
+ */
+
+/* Fields in TEGRA_SPDIF_CH_STA_TX_A */
+/* Fields in TEGRA_SPDIF_CH_STA_TX_B */
+/* Fields in TEGRA_SPDIF_CH_STA_TX_C */
+/* Fields in TEGRA_SPDIF_CH_STA_TX_D */
+/* Fields in TEGRA_SPDIF_CH_STA_TX_E */
+/* Fields in TEGRA_SPDIF_CH_STA_TX_F */
+
+/*
+ * The 6-word transmit channel data page buffer holds a block (192 frames) of
+ * channel status information. The order of transmission is from LSB to MSB
+ * bit, and from CH_STA_TX_A to CH_STA_TX_F then back to CH_STA_TX_A.
+ */
+
+/* Fields in TEGRA_SPDIF_USR_STA_RX_A */
+
+/*
+ * This 4-word deep FIFO receives user FIFO field information. The order of
+ * receive is from LSB to MSB bit.
+ */
+
+/* Fields in TEGRA_SPDIF_USR_DAT_TX_A */
+
+/*
+ * This 4-word deep FIFO transmits user FIFO field information. The order of
+ * transmission is from LSB to MSB bit.
+ */
+
+struct tegra_spdif {
+ struct clk *clk_spdif_out;
+ struct tegra_pcm_dma_params capture_dma_data;
+ struct tegra_pcm_dma_params playback_dma_data;
+ void __iomem *regs;
+ struct dentry *debug;
+ u32 reg_ctrl;
+};
+
+#endif
+++ /dev/null
-/*
- * 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);
+++ /dev/null
-/*
- * tegra_das.h - Definitions for 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
- *
- */
-
-#ifndef __TEGRA_DAS_H__
-#define __TEGRA_DAS_H__
-
-/* Register TEGRA_DAS_DAP_CTRL_SEL */
-#define TEGRA_DAS_DAP_CTRL_SEL 0x00
-#define TEGRA_DAS_DAP_CTRL_SEL_COUNT 5
-#define TEGRA_DAS_DAP_CTRL_SEL_STRIDE 4
-#define TEGRA_DAS_DAP_CTRL_SEL_DAP_MS_SEL_P 31
-#define TEGRA_DAS_DAP_CTRL_SEL_DAP_MS_SEL_S 1
-#define TEGRA_DAS_DAP_CTRL_SEL_DAP_SDATA1_TX_RX_P 30
-#define TEGRA_DAS_DAP_CTRL_SEL_DAP_SDATA1_TX_RX_S 1
-#define TEGRA_DAS_DAP_CTRL_SEL_DAP_SDATA2_TX_RX_P 29
-#define TEGRA_DAS_DAP_CTRL_SEL_DAP_SDATA2_TX_RX_S 1
-#define TEGRA_DAS_DAP_CTRL_SEL_DAP_CTRL_SEL_P 0
-#define TEGRA_DAS_DAP_CTRL_SEL_DAP_CTRL_SEL_S 5
-
-/* Values for field TEGRA_DAS_DAP_CTRL_SEL_DAP_CTRL_SEL */
-#define TEGRA_DAS_DAP_SEL_DAC1 0
-#define TEGRA_DAS_DAP_SEL_DAC2 1
-#define TEGRA_DAS_DAP_SEL_DAC3 2
-#define TEGRA_DAS_DAP_SEL_DAP1 16
-#define TEGRA_DAS_DAP_SEL_DAP2 17
-#define TEGRA_DAS_DAP_SEL_DAP3 18
-#define TEGRA_DAS_DAP_SEL_DAP4 19
-#define TEGRA_DAS_DAP_SEL_DAP5 20
-
-/* Register TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL */
-#define TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL 0x40
-#define TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_COUNT 3
-#define TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_STRIDE 4
-#define TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_SDATA2_SEL_P 28
-#define TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_SDATA2_SEL_S 4
-#define TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_SDATA1_SEL_P 24
-#define TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_SDATA1_SEL_S 4
-#define TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_CLK_SEL_P 0
-#define TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_CLK_SEL_S 4
-
-/*
- * Values for:
- * TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_SDATA2_SEL
- * TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_SDATA1_SEL
- * TEGRA_DAS_DAC_INPUT_DATA_CLK_SEL_DAC_CLK_SEL
- */
-#define TEGRA_DAS_DAC_SEL_DAP1 0
-#define TEGRA_DAS_DAC_SEL_DAP2 1
-#define TEGRA_DAS_DAC_SEL_DAP3 2
-#define TEGRA_DAS_DAC_SEL_DAP4 3
-#define TEGRA_DAS_DAC_SEL_DAP5 4
-
-/*
- * Names/IDs of the DACs/DAPs.
- */
-
-#define TEGRA_DAS_DAP_ID_1 0
-#define TEGRA_DAS_DAP_ID_2 1
-#define TEGRA_DAS_DAP_ID_3 2
-#define TEGRA_DAS_DAP_ID_4 3
-#define TEGRA_DAS_DAP_ID_5 4
-
-#define TEGRA_DAS_DAC_ID_1 0
-#define TEGRA_DAS_DAC_ID_2 1
-#define TEGRA_DAS_DAC_ID_3 2
-
-struct tegra_das {
- struct device *dev;
- void __iomem *regs;
- struct dentry *debug;
-};
-
-/*
- * Terminology:
- * DAS: Digital audio switch (HW module controlled by this driver)
- * DAP: Digital audio port (port/pins on Tegra device)
- * DAC: Digital audio controller (e.g. I2S or AC97 controller elsewhere)
- *
- * The Tegra DAS is a mux/cross-bar which can connect each DAP to a specific
- * DAC, or another DAP. When DAPs are connected, one must be the master and
- * one the slave. Each DAC allows selection of a specific DAP for input, to
- * cater for the case where N DAPs are connected to 1 DAC for broadcast
- * output.
- *
- * This driver is dumb; no attempt is made to ensure that a valid routing
- * configuration is programmed.
- */
-
-/*
- * Connect a DAP to to a DAC
- * dap_id: DAP to connect: TEGRA_DAS_DAP_ID_*
- * dac_sel: DAC to connect to: TEGRA_DAS_DAP_SEL_DAC*
- */
-extern int tegra_das_connect_dap_to_dac(int dap_id, int dac_sel);
-
-/*
- * Connect a DAP to to another DAP
- * dap_id: DAP to connect: TEGRA_DAS_DAP_ID_*
- * other_dap_sel: DAP to connect to: TEGRA_DAS_DAP_SEL_DAP*
- * master: Is this DAP the master (1) or slave (0)
- * sdata1rx: Is this DAP's SDATA1 pin RX (1) or TX (0)
- * sdata2rx: Is this DAP's SDATA2 pin RX (1) or TX (0)
- */
-extern int tegra_das_connect_dap_to_dap(int dap_id, int other_dap_sel,
- int master, int sdata1rx,
- int sdata2rx);
-
-/*
- * Connect a DAC's input to a DAP
- * (DAC outputs are selected by the DAP)
- * dac_id: DAC ID to connect: TEGRA_DAS_DAC_ID_*
- * dap_sel: DAP to receive input from: TEGRA_DAS_DAC_SEL_DAP*
- */
-extern int tegra_das_connect_dac_to_dap(int dac_id, int dap_sel);
-
-#endif
+++ /dev/null
-/*
- * tegra_i2s.c - Tegra I2S driver
- *
- * Author: Stephen Warren <swarren@nvidia.com>
- * Copyright (C) 2010,2012 - NVIDIA, Inc.
- *
- * Based on code copyright/by:
- *
- * Copyright (c) 2009-2010, NVIDIA Corporation.
- * Scott Peterson <speterson@nvidia.com>
- *
- * Copyright (C) 2010 Google, Inc.
- * Iliyan Malchev <malchev@google.com>
- *
- * 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/clk.h>
-#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 <linux/of.h>
-#include <mach/iomap.h>
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/pcm_params.h>
-#include <sound/soc.h>
-
-#include "tegra_i2s.h"
-
-#define DRV_NAME "tegra-i2s"
-
-static inline void tegra_i2s_write(struct tegra_i2s *i2s, u32 reg, u32 val)
-{
- __raw_writel(val, i2s->regs + reg);
-}
-
-static inline u32 tegra_i2s_read(struct tegra_i2s *i2s, u32 reg)
-{
- return __raw_readl(i2s->regs + reg);
-}
-
-#ifdef CONFIG_DEBUG_FS
-static int tegra_i2s_show(struct seq_file *s, void *unused)
-{
-#define REG(r) { r, #r }
- static const struct {
- int offset;
- const char *name;
- } regs[] = {
- REG(TEGRA_I2S_CTRL),
- REG(TEGRA_I2S_STATUS),
- REG(TEGRA_I2S_TIMING),
- REG(TEGRA_I2S_FIFO_SCR),
- REG(TEGRA_I2S_PCM_CTRL),
- REG(TEGRA_I2S_NW_CTRL),
- REG(TEGRA_I2S_TDM_CTRL),
- REG(TEGRA_I2S_TDM_TX_RX_CTRL),
- };
-#undef REG
-
- struct tegra_i2s *i2s = s->private;
- int i;
-
- for (i = 0; i < ARRAY_SIZE(regs); i++) {
- u32 val = tegra_i2s_read(i2s, regs[i].offset);
- seq_printf(s, "%s = %08x\n", regs[i].name, val);
- }
-
- return 0;
-}
-
-static int tegra_i2s_debug_open(struct inode *inode, struct file *file)
-{
- return single_open(file, tegra_i2s_show, inode->i_private);
-}
-
-static const struct file_operations tegra_i2s_debug_fops = {
- .open = tegra_i2s_debug_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static void tegra_i2s_debug_add(struct tegra_i2s *i2s)
-{
- i2s->debug = debugfs_create_file(i2s->dai.name, S_IRUGO,
- snd_soc_debugfs_root, i2s,
- &tegra_i2s_debug_fops);
-}
-
-static void tegra_i2s_debug_remove(struct tegra_i2s *i2s)
-{
- if (i2s->debug)
- debugfs_remove(i2s->debug);
-}
-#else
-static inline void tegra_i2s_debug_add(struct tegra_i2s *i2s, int id)
-{
-}
-
-static inline void tegra_i2s_debug_remove(struct tegra_i2s *i2s)
-{
-}
-#endif
-
-static int tegra_i2s_set_fmt(struct snd_soc_dai *dai,
- unsigned int fmt)
-{
- struct tegra_i2s *i2s = snd_soc_dai_get_drvdata(dai);
-
- switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
- case SND_SOC_DAIFMT_NB_NF:
- break;
- default:
- return -EINVAL;
- }
-
- i2s->reg_ctrl &= ~TEGRA_I2S_CTRL_MASTER_ENABLE;
- switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
- case SND_SOC_DAIFMT_CBS_CFS:
- i2s->reg_ctrl |= TEGRA_I2S_CTRL_MASTER_ENABLE;
- break;
- case SND_SOC_DAIFMT_CBM_CFM:
- break;
- default:
- return -EINVAL;
- }
-
- i2s->reg_ctrl &= ~(TEGRA_I2S_CTRL_BIT_FORMAT_MASK |
- TEGRA_I2S_CTRL_LRCK_MASK);
- switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
- case SND_SOC_DAIFMT_DSP_A:
- i2s->reg_ctrl |= TEGRA_I2S_CTRL_BIT_FORMAT_DSP;
- i2s->reg_ctrl |= TEGRA_I2S_CTRL_LRCK_L_LOW;
- break;
- case SND_SOC_DAIFMT_DSP_B:
- i2s->reg_ctrl |= TEGRA_I2S_CTRL_BIT_FORMAT_DSP;
- i2s->reg_ctrl |= TEGRA_I2S_CTRL_LRCK_R_LOW;
- break;
- case SND_SOC_DAIFMT_I2S:
- i2s->reg_ctrl |= TEGRA_I2S_CTRL_BIT_FORMAT_I2S;
- i2s->reg_ctrl |= TEGRA_I2S_CTRL_LRCK_L_LOW;
- break;
- case SND_SOC_DAIFMT_RIGHT_J:
- i2s->reg_ctrl |= TEGRA_I2S_CTRL_BIT_FORMAT_RJM;
- i2s->reg_ctrl |= TEGRA_I2S_CTRL_LRCK_L_LOW;
- break;
- case SND_SOC_DAIFMT_LEFT_J:
- i2s->reg_ctrl |= TEGRA_I2S_CTRL_BIT_FORMAT_LJM;
- i2s->reg_ctrl |= TEGRA_I2S_CTRL_LRCK_L_LOW;
- break;
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-static int tegra_i2s_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params,
- struct snd_soc_dai *dai)
-{
- struct device *dev = substream->pcm->card->dev;
- struct tegra_i2s *i2s = snd_soc_dai_get_drvdata(dai);
- u32 reg;
- int ret, sample_size, srate, i2sclock, bitcnt;
-
- i2s->reg_ctrl &= ~TEGRA_I2S_CTRL_BIT_SIZE_MASK;
- switch (params_format(params)) {
- case SNDRV_PCM_FORMAT_S16_LE:
- i2s->reg_ctrl |= TEGRA_I2S_CTRL_BIT_SIZE_16;
- sample_size = 16;
- break;
- case SNDRV_PCM_FORMAT_S24_LE:
- i2s->reg_ctrl |= TEGRA_I2S_CTRL_BIT_SIZE_24;
- sample_size = 24;
- break;
- case SNDRV_PCM_FORMAT_S32_LE:
- i2s->reg_ctrl |= TEGRA_I2S_CTRL_BIT_SIZE_32;
- sample_size = 32;
- break;
- default:
- return -EINVAL;
- }
-
- srate = params_rate(params);
-
- /* Final "* 2" required by Tegra hardware */
- i2sclock = srate * params_channels(params) * sample_size * 2;
-
- ret = clk_set_rate(i2s->clk_i2s, i2sclock);
- if (ret) {
- dev_err(dev, "Can't set I2S clock rate: %d\n", ret);
- return ret;
- }
-
- bitcnt = (i2sclock / (2 * srate)) - 1;
- if (bitcnt < 0 || bitcnt > TEGRA_I2S_TIMING_CHANNEL_BIT_COUNT_MASK_US)
- return -EINVAL;
- reg = bitcnt << TEGRA_I2S_TIMING_CHANNEL_BIT_COUNT_SHIFT;
-
- if (i2sclock % (2 * srate))
- reg |= TEGRA_I2S_TIMING_NON_SYM_ENABLE;
-
- clk_enable(i2s->clk_i2s);
-
- tegra_i2s_write(i2s, TEGRA_I2S_TIMING, reg);
-
- tegra_i2s_write(i2s, TEGRA_I2S_FIFO_SCR,
- TEGRA_I2S_FIFO_SCR_FIFO2_ATN_LVL_FOUR_SLOTS |
- TEGRA_I2S_FIFO_SCR_FIFO1_ATN_LVL_FOUR_SLOTS);
-
- clk_disable(i2s->clk_i2s);
-
- return 0;
-}
-
-static void tegra_i2s_start_playback(struct tegra_i2s *i2s)
-{
- i2s->reg_ctrl |= TEGRA_I2S_CTRL_FIFO1_ENABLE;
- tegra_i2s_write(i2s, TEGRA_I2S_CTRL, i2s->reg_ctrl);
-}
-
-static void tegra_i2s_stop_playback(struct tegra_i2s *i2s)
-{
- i2s->reg_ctrl &= ~TEGRA_I2S_CTRL_FIFO1_ENABLE;
- tegra_i2s_write(i2s, TEGRA_I2S_CTRL, i2s->reg_ctrl);
-}
-
-static void tegra_i2s_start_capture(struct tegra_i2s *i2s)
-{
- i2s->reg_ctrl |= TEGRA_I2S_CTRL_FIFO2_ENABLE;
- tegra_i2s_write(i2s, TEGRA_I2S_CTRL, i2s->reg_ctrl);
-}
-
-static void tegra_i2s_stop_capture(struct tegra_i2s *i2s)
-{
- i2s->reg_ctrl &= ~TEGRA_I2S_CTRL_FIFO2_ENABLE;
- tegra_i2s_write(i2s, TEGRA_I2S_CTRL, i2s->reg_ctrl);
-}
-
-static int tegra_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
- struct snd_soc_dai *dai)
-{
- struct tegra_i2s *i2s = snd_soc_dai_get_drvdata(dai);
-
- switch (cmd) {
- case SNDRV_PCM_TRIGGER_START:
- case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
- case SNDRV_PCM_TRIGGER_RESUME:
- clk_enable(i2s->clk_i2s);
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- tegra_i2s_start_playback(i2s);
- else
- tegra_i2s_start_capture(i2s);
- break;
- case SNDRV_PCM_TRIGGER_STOP:
- case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
- case SNDRV_PCM_TRIGGER_SUSPEND:
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- tegra_i2s_stop_playback(i2s);
- else
- tegra_i2s_stop_capture(i2s);
- clk_disable(i2s->clk_i2s);
- break;
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-static int tegra_i2s_probe(struct snd_soc_dai *dai)
-{
- struct tegra_i2s *i2s = snd_soc_dai_get_drvdata(dai);
-
- dai->capture_dma_data = &i2s->capture_dma_data;
- dai->playback_dma_data = &i2s->playback_dma_data;
-
- return 0;
-}
-
-static const struct snd_soc_dai_ops tegra_i2s_dai_ops = {
- .set_fmt = tegra_i2s_set_fmt,
- .hw_params = tegra_i2s_hw_params,
- .trigger = tegra_i2s_trigger,
-};
-
-static const struct snd_soc_dai_driver tegra_i2s_dai_template = {
- .probe = tegra_i2s_probe,
- .playback = {
- .channels_min = 2,
- .channels_max = 2,
- .rates = SNDRV_PCM_RATE_8000_96000,
- .formats = SNDRV_PCM_FMTBIT_S16_LE,
- },
- .capture = {
- .channels_min = 2,
- .channels_max = 2,
- .rates = SNDRV_PCM_RATE_8000_96000,
- .formats = SNDRV_PCM_FMTBIT_S16_LE,
- },
- .ops = &tegra_i2s_dai_ops,
- .symmetric_rates = 1,
-};
-
-static __devinit int tegra_i2s_platform_probe(struct platform_device *pdev)
-{
- struct tegra_i2s *i2s;
- struct resource *mem, *memregion, *dmareq;
- u32 of_dma[2];
- u32 dma_ch;
- int ret;
-
- i2s = devm_kzalloc(&pdev->dev, sizeof(struct tegra_i2s), GFP_KERNEL);
- if (!i2s) {
- dev_err(&pdev->dev, "Can't allocate tegra_i2s\n");
- ret = -ENOMEM;
- goto err;
- }
- dev_set_drvdata(&pdev->dev, i2s);
-
- i2s->dai = tegra_i2s_dai_template;
- i2s->dai.name = dev_name(&pdev->dev);
-
- i2s->clk_i2s = clk_get(&pdev->dev, NULL);
- if (IS_ERR(i2s->clk_i2s)) {
- dev_err(&pdev->dev, "Can't retrieve i2s clock\n");
- ret = PTR_ERR(i2s->clk_i2s);
- goto err;
- }
-
- mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!mem) {
- dev_err(&pdev->dev, "No memory resource\n");
- ret = -ENODEV;
- goto err_clk_put;
- }
-
- dmareq = platform_get_resource(pdev, IORESOURCE_DMA, 0);
- if (!dmareq) {
- if (of_property_read_u32_array(pdev->dev.of_node,
- "nvidia,dma-request-selector",
- of_dma, 2) < 0) {
- dev_err(&pdev->dev, "No DMA resource\n");
- ret = -ENODEV;
- goto err_clk_put;
- }
- dma_ch = of_dma[1];
- } else {
- dma_ch = dmareq->start;
- }
-
- memregion = devm_request_mem_region(&pdev->dev, mem->start,
- resource_size(mem), DRV_NAME);
- if (!memregion) {
- dev_err(&pdev->dev, "Memory region already claimed\n");
- ret = -EBUSY;
- goto err_clk_put;
- }
-
- i2s->regs = devm_ioremap(&pdev->dev, mem->start, resource_size(mem));
- if (!i2s->regs) {
- dev_err(&pdev->dev, "ioremap failed\n");
- ret = -ENOMEM;
- goto err_clk_put;
- }
-
- i2s->capture_dma_data.addr = mem->start + TEGRA_I2S_FIFO2;
- i2s->capture_dma_data.wrap = 4;
- i2s->capture_dma_data.width = 32;
- i2s->capture_dma_data.req_sel = dma_ch;
-
- i2s->playback_dma_data.addr = mem->start + TEGRA_I2S_FIFO1;
- i2s->playback_dma_data.wrap = 4;
- i2s->playback_dma_data.width = 32;
- i2s->playback_dma_data.req_sel = dma_ch;
-
- i2s->reg_ctrl = TEGRA_I2S_CTRL_FIFO_FORMAT_PACKED;
-
- ret = snd_soc_register_dai(&pdev->dev, &i2s->dai);
- if (ret) {
- dev_err(&pdev->dev, "Could not register DAI: %d\n", ret);
- ret = -ENOMEM;
- goto err_clk_put;
- }
-
- ret = tegra_pcm_platform_register(&pdev->dev);
- if (ret) {
- dev_err(&pdev->dev, "Could not register PCM: %d\n", ret);
- goto err_unregister_dai;
- }
-
- tegra_i2s_debug_add(i2s);
-
- return 0;
-
-err_unregister_dai:
- snd_soc_unregister_dai(&pdev->dev);
-err_clk_put:
- clk_put(i2s->clk_i2s);
-err:
- return ret;
-}
-
-static int __devexit tegra_i2s_platform_remove(struct platform_device *pdev)
-{
- struct tegra_i2s *i2s = dev_get_drvdata(&pdev->dev);
-
- tegra_pcm_platform_unregister(&pdev->dev);
- snd_soc_unregister_dai(&pdev->dev);
-
- tegra_i2s_debug_remove(i2s);
-
- clk_put(i2s->clk_i2s);
-
- return 0;
-}
-
-static const struct of_device_id tegra_i2s_of_match[] __devinitconst = {
- { .compatible = "nvidia,tegra20-i2s", },
- {},
-};
-
-static struct platform_driver tegra_i2s_driver = {
- .driver = {
- .name = DRV_NAME,
- .owner = THIS_MODULE,
- .of_match_table = tegra_i2s_of_match,
- },
- .probe = tegra_i2s_platform_probe,
- .remove = __devexit_p(tegra_i2s_platform_remove),
-};
-module_platform_driver(tegra_i2s_driver);
-
-MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>");
-MODULE_DESCRIPTION("Tegra I2S ASoC driver");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:" DRV_NAME);
-MODULE_DEVICE_TABLE(of, tegra_i2s_of_match);
+++ /dev/null
-/*
- * tegra_i2s.h - Definitions for Tegra I2S driver
- *
- * Author: Stephen Warren <swarren@nvidia.com>
- * Copyright (C) 2010 - NVIDIA, Inc.
- *
- * Based on code copyright/by:
- *
- * Copyright (c) 2009-2010, NVIDIA Corporation.
- * Scott Peterson <speterson@nvidia.com>
- *
- * Copyright (C) 2010 Google, Inc.
- * Iliyan Malchev <malchev@google.com>
- *
- * 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
- *
- */
-
-#ifndef __TEGRA_I2S_H__
-#define __TEGRA_I2S_H__
-
-#include "tegra_pcm.h"
-
-/* Register offsets from TEGRA_I2S1_BASE and TEGRA_I2S2_BASE */
-
-#define TEGRA_I2S_CTRL 0x00
-#define TEGRA_I2S_STATUS 0x04
-#define TEGRA_I2S_TIMING 0x08
-#define TEGRA_I2S_FIFO_SCR 0x0c
-#define TEGRA_I2S_PCM_CTRL 0x10
-#define TEGRA_I2S_NW_CTRL 0x14
-#define TEGRA_I2S_TDM_CTRL 0x20
-#define TEGRA_I2S_TDM_TX_RX_CTRL 0x24
-#define TEGRA_I2S_FIFO1 0x40
-#define TEGRA_I2S_FIFO2 0x80
-
-/* Fields in TEGRA_I2S_CTRL */
-
-#define TEGRA_I2S_CTRL_FIFO2_TX_ENABLE (1 << 30)
-#define TEGRA_I2S_CTRL_FIFO1_ENABLE (1 << 29)
-#define TEGRA_I2S_CTRL_FIFO2_ENABLE (1 << 28)
-#define TEGRA_I2S_CTRL_FIFO1_RX_ENABLE (1 << 27)
-#define TEGRA_I2S_CTRL_FIFO_LPBK_ENABLE (1 << 26)
-#define TEGRA_I2S_CTRL_MASTER_ENABLE (1 << 25)
-
-#define TEGRA_I2S_LRCK_LEFT_LOW 0
-#define TEGRA_I2S_LRCK_RIGHT_LOW 1
-
-#define TEGRA_I2S_CTRL_LRCK_SHIFT 24
-#define TEGRA_I2S_CTRL_LRCK_MASK (1 << TEGRA_I2S_CTRL_LRCK_SHIFT)
-#define TEGRA_I2S_CTRL_LRCK_L_LOW (TEGRA_I2S_LRCK_LEFT_LOW << TEGRA_I2S_CTRL_LRCK_SHIFT)
-#define TEGRA_I2S_CTRL_LRCK_R_LOW (TEGRA_I2S_LRCK_RIGHT_LOW << TEGRA_I2S_CTRL_LRCK_SHIFT)
-
-#define TEGRA_I2S_BIT_FORMAT_I2S 0
-#define TEGRA_I2S_BIT_FORMAT_RJM 1
-#define TEGRA_I2S_BIT_FORMAT_LJM 2
-#define TEGRA_I2S_BIT_FORMAT_DSP 3
-
-#define TEGRA_I2S_CTRL_BIT_FORMAT_SHIFT 10
-#define TEGRA_I2S_CTRL_BIT_FORMAT_MASK (3 << TEGRA_I2S_CTRL_BIT_FORMAT_SHIFT)
-#define TEGRA_I2S_CTRL_BIT_FORMAT_I2S (TEGRA_I2S_BIT_FORMAT_I2S << TEGRA_I2S_CTRL_BIT_FORMAT_SHIFT)
-#define TEGRA_I2S_CTRL_BIT_FORMAT_RJM (TEGRA_I2S_BIT_FORMAT_RJM << TEGRA_I2S_CTRL_BIT_FORMAT_SHIFT)
-#define TEGRA_I2S_CTRL_BIT_FORMAT_LJM (TEGRA_I2S_BIT_FORMAT_LJM << TEGRA_I2S_CTRL_BIT_FORMAT_SHIFT)
-#define TEGRA_I2S_CTRL_BIT_FORMAT_DSP (TEGRA_I2S_BIT_FORMAT_DSP << TEGRA_I2S_CTRL_BIT_FORMAT_SHIFT)
-
-#define TEGRA_I2S_BIT_SIZE_16 0
-#define TEGRA_I2S_BIT_SIZE_20 1
-#define TEGRA_I2S_BIT_SIZE_24 2
-#define TEGRA_I2S_BIT_SIZE_32 3
-
-#define TEGRA_I2S_CTRL_BIT_SIZE_SHIFT 8
-#define TEGRA_I2S_CTRL_BIT_SIZE_MASK (3 << TEGRA_I2S_CTRL_BIT_SIZE_SHIFT)
-#define TEGRA_I2S_CTRL_BIT_SIZE_16 (TEGRA_I2S_BIT_SIZE_16 << TEGRA_I2S_CTRL_BIT_SIZE_SHIFT)
-#define TEGRA_I2S_CTRL_BIT_SIZE_20 (TEGRA_I2S_BIT_SIZE_20 << TEGRA_I2S_CTRL_BIT_SIZE_SHIFT)
-#define TEGRA_I2S_CTRL_BIT_SIZE_24 (TEGRA_I2S_BIT_SIZE_24 << TEGRA_I2S_CTRL_BIT_SIZE_SHIFT)
-#define TEGRA_I2S_CTRL_BIT_SIZE_32 (TEGRA_I2S_BIT_SIZE_32 << TEGRA_I2S_CTRL_BIT_SIZE_SHIFT)
-
-#define TEGRA_I2S_FIFO_16_LSB 0
-#define TEGRA_I2S_FIFO_20_LSB 1
-#define TEGRA_I2S_FIFO_24_LSB 2
-#define TEGRA_I2S_FIFO_32 3
-#define TEGRA_I2S_FIFO_PACKED 7
-
-#define TEGRA_I2S_CTRL_FIFO_FORMAT_SHIFT 4
-#define TEGRA_I2S_CTRL_FIFO_FORMAT_MASK (7 << TEGRA_I2S_CTRL_FIFO_FORMAT_SHIFT)
-#define TEGRA_I2S_CTRL_FIFO_FORMAT_16_LSB (TEGRA_I2S_FIFO_16_LSB << TEGRA_I2S_CTRL_FIFO_FORMAT_SHIFT)
-#define TEGRA_I2S_CTRL_FIFO_FORMAT_20_LSB (TEGRA_I2S_FIFO_20_LSB << TEGRA_I2S_CTRL_FIFO_FORMAT_SHIFT)
-#define TEGRA_I2S_CTRL_FIFO_FORMAT_24_LSB (TEGRA_I2S_FIFO_24_LSB << TEGRA_I2S_CTRL_FIFO_FORMAT_SHIFT)
-#define TEGRA_I2S_CTRL_FIFO_FORMAT_32 (TEGRA_I2S_FIFO_32 << TEGRA_I2S_CTRL_FIFO_FORMAT_SHIFT)
-#define TEGRA_I2S_CTRL_FIFO_FORMAT_PACKED (TEGRA_I2S_FIFO_PACKED << TEGRA_I2S_CTRL_FIFO_FORMAT_SHIFT)
-
-#define TEGRA_I2S_CTRL_IE_FIFO1_ERR (1 << 3)
-#define TEGRA_I2S_CTRL_IE_FIFO2_ERR (1 << 2)
-#define TEGRA_I2S_CTRL_QE_FIFO1 (1 << 1)
-#define TEGRA_I2S_CTRL_QE_FIFO2 (1 << 0)
-
-/* Fields in TEGRA_I2S_STATUS */
-
-#define TEGRA_I2S_STATUS_FIFO1_RDY (1 << 31)
-#define TEGRA_I2S_STATUS_FIFO2_RDY (1 << 30)
-#define TEGRA_I2S_STATUS_FIFO1_BSY (1 << 29)
-#define TEGRA_I2S_STATUS_FIFO2_BSY (1 << 28)
-#define TEGRA_I2S_STATUS_FIFO1_ERR (1 << 3)
-#define TEGRA_I2S_STATUS_FIFO2_ERR (1 << 2)
-#define TEGRA_I2S_STATUS_QS_FIFO1 (1 << 1)
-#define TEGRA_I2S_STATUS_QS_FIFO2 (1 << 0)
-
-/* Fields in TEGRA_I2S_TIMING */
-
-#define TEGRA_I2S_TIMING_NON_SYM_ENABLE (1 << 12)
-#define TEGRA_I2S_TIMING_CHANNEL_BIT_COUNT_SHIFT 0
-#define TEGRA_I2S_TIMING_CHANNEL_BIT_COUNT_MASK_US 0x7fff
-#define TEGRA_I2S_TIMING_CHANNEL_BIT_COUNT_MASK (TEGRA_I2S_TIMING_CHANNEL_BIT_COUNT_MASK_US << TEGRA_I2S_TIMING_CHANNEL_BIT_COUNT_SHIFT)
-
-/* Fields in TEGRA_I2S_FIFO_SCR */
-
-#define TEGRA_I2S_FIFO_SCR_FIFO2_FULL_EMPTY_COUNT_SHIFT 24
-#define TEGRA_I2S_FIFO_SCR_FIFO1_FULL_EMPTY_COUNT_SHIFT 16
-#define TEGRA_I2S_FIFO_SCR_FIFO_FULL_EMPTY_COUNT_MASK 0x3f
-
-#define TEGRA_I2S_FIFO_SCR_FIFO2_CLR (1 << 12)
-#define TEGRA_I2S_FIFO_SCR_FIFO1_CLR (1 << 8)
-
-#define TEGRA_I2S_FIFO_ATN_LVL_ONE_SLOT 0
-#define TEGRA_I2S_FIFO_ATN_LVL_FOUR_SLOTS 1
-#define TEGRA_I2S_FIFO_ATN_LVL_EIGHT_SLOTS 2
-#define TEGRA_I2S_FIFO_ATN_LVL_TWELVE_SLOTS 3
-
-#define TEGRA_I2S_FIFO_SCR_FIFO2_ATN_LVL_SHIFT 4
-#define TEGRA_I2S_FIFO_SCR_FIFO2_ATN_LVL_MASK (3 << TEGRA_I2S_FIFO_SCR_FIFO2_ATN_LVL_SHIFT)
-#define TEGRA_I2S_FIFO_SCR_FIFO2_ATN_LVL_ONE_SLOT (TEGRA_I2S_FIFO_ATN_LVL_ONE_SLOT << TEGRA_I2S_FIFO_SCR_FIFO2_ATN_LVL_SHIFT)
-#define TEGRA_I2S_FIFO_SCR_FIFO2_ATN_LVL_FOUR_SLOTS (TEGRA_I2S_FIFO_ATN_LVL_FOUR_SLOTS << TEGRA_I2S_FIFO_SCR_FIFO2_ATN_LVL_SHIFT)
-#define TEGRA_I2S_FIFO_SCR_FIFO2_ATN_LVL_EIGHT_SLOTS (TEGRA_I2S_FIFO_ATN_LVL_EIGHT_SLOTS << TEGRA_I2S_FIFO_SCR_FIFO2_ATN_LVL_SHIFT)
-#define TEGRA_I2S_FIFO_SCR_FIFO2_ATN_LVL_TWELVE_SLOTS (TEGRA_I2S_FIFO_ATN_LVL_TWELVE_SLOTS << TEGRA_I2S_FIFO_SCR_FIFO2_ATN_LVL_SHIFT)
-
-#define TEGRA_I2S_FIFO_SCR_FIFO1_ATN_LVL_SHIFT 0
-#define TEGRA_I2S_FIFO_SCR_FIFO1_ATN_LVL_MASK (3 << TEGRA_I2S_FIFO_SCR_FIFO1_ATN_LVL_SHIFT)
-#define TEGRA_I2S_FIFO_SCR_FIFO1_ATN_LVL_ONE_SLOT (TEGRA_I2S_FIFO_ATN_LVL_ONE_SLOT << TEGRA_I2S_FIFO_SCR_FIFO1_ATN_LVL_SHIFT)
-#define TEGRA_I2S_FIFO_SCR_FIFO1_ATN_LVL_FOUR_SLOTS (TEGRA_I2S_FIFO_ATN_LVL_FOUR_SLOTS << TEGRA_I2S_FIFO_SCR_FIFO1_ATN_LVL_SHIFT)
-#define TEGRA_I2S_FIFO_SCR_FIFO1_ATN_LVL_EIGHT_SLOTS (TEGRA_I2S_FIFO_ATN_LVL_EIGHT_SLOTS << TEGRA_I2S_FIFO_SCR_FIFO1_ATN_LVL_SHIFT)
-#define TEGRA_I2S_FIFO_SCR_FIFO1_ATN_LVL_TWELVE_SLOTS (TEGRA_I2S_FIFO_ATN_LVL_TWELVE_SLOTS << TEGRA_I2S_FIFO_SCR_FIFO1_ATN_LVL_SHIFT)
-
-struct tegra_i2s {
- struct snd_soc_dai_driver dai;
- struct clk *clk_i2s;
- struct tegra_pcm_dma_params capture_dma_data;
- struct tegra_pcm_dma_params playback_dma_data;
- void __iomem *regs;
- struct dentry *debug;
- u32 reg_ctrl;
-};
-
-#endif
+++ /dev/null
-/*
- * tegra_spdif.c - Tegra SPDIF driver
- *
- * Author: Stephen Warren <swarren@nvidia.com>
- * Copyright (C) 2011-2012 - 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/clk.h>
-#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/core.h>
-#include <sound/pcm.h>
-#include <sound/pcm_params.h>
-#include <sound/soc.h>
-
-#include "tegra_spdif.h"
-
-#define DRV_NAME "tegra-spdif"
-
-static inline void tegra_spdif_write(struct tegra_spdif *spdif, u32 reg,
- u32 val)
-{
- __raw_writel(val, spdif->regs + reg);
-}
-
-static inline u32 tegra_spdif_read(struct tegra_spdif *spdif, u32 reg)
-{
- return __raw_readl(spdif->regs + reg);
-}
-
-#ifdef CONFIG_DEBUG_FS
-static int tegra_spdif_show(struct seq_file *s, void *unused)
-{
-#define REG(r) { r, #r }
- static const struct {
- int offset;
- const char *name;
- } regs[] = {
- REG(TEGRA_SPDIF_CTRL),
- REG(TEGRA_SPDIF_STATUS),
- REG(TEGRA_SPDIF_STROBE_CTRL),
- REG(TEGRA_SPDIF_DATA_FIFO_CSR),
- REG(TEGRA_SPDIF_CH_STA_RX_A),
- REG(TEGRA_SPDIF_CH_STA_RX_B),
- REG(TEGRA_SPDIF_CH_STA_RX_C),
- REG(TEGRA_SPDIF_CH_STA_RX_D),
- REG(TEGRA_SPDIF_CH_STA_RX_E),
- REG(TEGRA_SPDIF_CH_STA_RX_F),
- REG(TEGRA_SPDIF_CH_STA_TX_A),
- REG(TEGRA_SPDIF_CH_STA_TX_B),
- REG(TEGRA_SPDIF_CH_STA_TX_C),
- REG(TEGRA_SPDIF_CH_STA_TX_D),
- REG(TEGRA_SPDIF_CH_STA_TX_E),
- REG(TEGRA_SPDIF_CH_STA_TX_F),
- };
-#undef REG
-
- struct tegra_spdif *spdif = s->private;
- int i;
-
- for (i = 0; i < ARRAY_SIZE(regs); i++) {
- u32 val = tegra_spdif_read(spdif, regs[i].offset);
- seq_printf(s, "%s = %08x\n", regs[i].name, val);
- }
-
- return 0;
-}
-
-static int tegra_spdif_debug_open(struct inode *inode, struct file *file)
-{
- return single_open(file, tegra_spdif_show, inode->i_private);
-}
-
-static const struct file_operations tegra_spdif_debug_fops = {
- .open = tegra_spdif_debug_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static void tegra_spdif_debug_add(struct tegra_spdif *spdif)
-{
- spdif->debug = debugfs_create_file(DRV_NAME, S_IRUGO,
- snd_soc_debugfs_root, spdif,
- &tegra_spdif_debug_fops);
-}
-
-static void tegra_spdif_debug_remove(struct tegra_spdif *spdif)
-{
- if (spdif->debug)
- debugfs_remove(spdif->debug);
-}
-#else
-static inline void tegra_spdif_debug_add(struct tegra_spdif *spdif)
-{
-}
-
-static inline void tegra_spdif_debug_remove(struct tegra_spdif *spdif)
-{
-}
-#endif
-
-static int tegra_spdif_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params,
- struct snd_soc_dai *dai)
-{
- struct device *dev = substream->pcm->card->dev;
- struct tegra_spdif *spdif = snd_soc_dai_get_drvdata(dai);
- int ret, spdifclock;
-
- spdif->reg_ctrl &= ~TEGRA_SPDIF_CTRL_PACK;
- spdif->reg_ctrl &= ~TEGRA_SPDIF_CTRL_BIT_MODE_MASK;
- switch (params_format(params)) {
- case SNDRV_PCM_FORMAT_S16_LE:
- spdif->reg_ctrl |= TEGRA_SPDIF_CTRL_PACK;
- spdif->reg_ctrl |= TEGRA_SPDIF_CTRL_BIT_MODE_16BIT;
- break;
- default:
- return -EINVAL;
- }
-
- switch (params_rate(params)) {
- case 32000:
- spdifclock = 4096000;
- break;
- case 44100:
- spdifclock = 5644800;
- break;
- case 48000:
- spdifclock = 6144000;
- break;
- case 88200:
- spdifclock = 11289600;
- break;
- case 96000:
- spdifclock = 12288000;
- break;
- case 176400:
- spdifclock = 22579200;
- break;
- case 192000:
- spdifclock = 24576000;
- break;
- default:
- return -EINVAL;
- }
-
- ret = clk_set_rate(spdif->clk_spdif_out, spdifclock);
- if (ret) {
- dev_err(dev, "Can't set SPDIF clock rate: %d\n", ret);
- return ret;
- }
-
- return 0;
-}
-
-static void tegra_spdif_start_playback(struct tegra_spdif *spdif)
-{
- spdif->reg_ctrl |= TEGRA_SPDIF_CTRL_TX_EN;
- tegra_spdif_write(spdif, TEGRA_SPDIF_CTRL, spdif->reg_ctrl);
-}
-
-static void tegra_spdif_stop_playback(struct tegra_spdif *spdif)
-{
- spdif->reg_ctrl &= ~TEGRA_SPDIF_CTRL_TX_EN;
- tegra_spdif_write(spdif, TEGRA_SPDIF_CTRL, spdif->reg_ctrl);
-}
-
-static int tegra_spdif_trigger(struct snd_pcm_substream *substream, int cmd,
- struct snd_soc_dai *dai)
-{
- struct tegra_spdif *spdif = snd_soc_dai_get_drvdata(dai);
-
- switch (cmd) {
- case SNDRV_PCM_TRIGGER_START:
- case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
- case SNDRV_PCM_TRIGGER_RESUME:
- clk_enable(spdif->clk_spdif_out);
- tegra_spdif_start_playback(spdif);
- break;
- case SNDRV_PCM_TRIGGER_STOP:
- case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
- case SNDRV_PCM_TRIGGER_SUSPEND:
- tegra_spdif_stop_playback(spdif);
- clk_disable(spdif->clk_spdif_out);
- break;
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-static int tegra_spdif_probe(struct snd_soc_dai *dai)
-{
- struct tegra_spdif *spdif = snd_soc_dai_get_drvdata(dai);
-
- dai->capture_dma_data = NULL;
- dai->playback_dma_data = &spdif->playback_dma_data;
-
- return 0;
-}
-
-static const struct snd_soc_dai_ops tegra_spdif_dai_ops = {
- .hw_params = tegra_spdif_hw_params,
- .trigger = tegra_spdif_trigger,
-};
-
-static struct snd_soc_dai_driver tegra_spdif_dai = {
- .name = DRV_NAME,
- .probe = tegra_spdif_probe,
- .playback = {
- .channels_min = 2,
- .channels_max = 2,
- .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |
- SNDRV_PCM_RATE_48000,
- .formats = SNDRV_PCM_FMTBIT_S16_LE,
- },
- .ops = &tegra_spdif_dai_ops,
-};
-
-static __devinit int tegra_spdif_platform_probe(struct platform_device *pdev)
-{
- struct tegra_spdif *spdif;
- struct resource *mem, *memregion, *dmareq;
- int ret;
-
- spdif = kzalloc(sizeof(struct tegra_spdif), GFP_KERNEL);
- if (!spdif) {
- dev_err(&pdev->dev, "Can't allocate tegra_spdif\n");
- ret = -ENOMEM;
- goto exit;
- }
- dev_set_drvdata(&pdev->dev, spdif);
-
- spdif->clk_spdif_out = clk_get(&pdev->dev, "spdif_out");
- if (IS_ERR(spdif->clk_spdif_out)) {
- pr_err("Can't retrieve spdif clock\n");
- ret = PTR_ERR(spdif->clk_spdif_out);
- goto err_free;
- }
-
- mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!mem) {
- dev_err(&pdev->dev, "No memory resource\n");
- ret = -ENODEV;
- goto err_clk_put;
- }
-
- dmareq = platform_get_resource(pdev, IORESOURCE_DMA, 0);
- if (!dmareq) {
- dev_err(&pdev->dev, "No DMA resource\n");
- ret = -ENODEV;
- goto err_clk_put;
- }
-
- memregion = request_mem_region(mem->start, resource_size(mem),
- DRV_NAME);
- if (!memregion) {
- dev_err(&pdev->dev, "Memory region already claimed\n");
- ret = -EBUSY;
- goto err_clk_put;
- }
-
- spdif->regs = ioremap(mem->start, resource_size(mem));
- if (!spdif->regs) {
- dev_err(&pdev->dev, "ioremap failed\n");
- ret = -ENOMEM;
- goto err_release;
- }
-
- spdif->playback_dma_data.addr = mem->start + TEGRA_SPDIF_DATA_OUT;
- spdif->playback_dma_data.wrap = 4;
- spdif->playback_dma_data.width = 32;
- spdif->playback_dma_data.req_sel = dmareq->start;
-
- ret = snd_soc_register_dai(&pdev->dev, &tegra_spdif_dai);
- if (ret) {
- dev_err(&pdev->dev, "Could not register DAI: %d\n", ret);
- ret = -ENOMEM;
- goto err_unmap;
- }
-
- ret = tegra_pcm_platform_register(&pdev->dev);
- if (ret) {
- dev_err(&pdev->dev, "Could not register PCM: %d\n", ret);
- goto err_unregister_dai;
- }
-
- tegra_spdif_debug_add(spdif);
-
- return 0;
-
-err_unregister_dai:
- snd_soc_unregister_dai(&pdev->dev);
-err_unmap:
- iounmap(spdif->regs);
-err_release:
- release_mem_region(mem->start, resource_size(mem));
-err_clk_put:
- clk_put(spdif->clk_spdif_out);
-err_free:
- kfree(spdif);
-exit:
- return ret;
-}
-
-static int __devexit tegra_spdif_platform_remove(struct platform_device *pdev)
-{
- struct tegra_spdif *spdif = dev_get_drvdata(&pdev->dev);
- struct resource *res;
-
- tegra_pcm_platform_unregister(&pdev->dev);
- snd_soc_unregister_dai(&pdev->dev);
-
- tegra_spdif_debug_remove(spdif);
-
- iounmap(spdif->regs);
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- release_mem_region(res->start, resource_size(res));
-
- clk_put(spdif->clk_spdif_out);
-
- kfree(spdif);
-
- return 0;
-}
-
-static struct platform_driver tegra_spdif_driver = {
- .driver = {
- .name = DRV_NAME,
- .owner = THIS_MODULE,
- },
- .probe = tegra_spdif_platform_probe,
- .remove = __devexit_p(tegra_spdif_platform_remove),
-};
-
-module_platform_driver(tegra_spdif_driver);
-
-MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>");
-MODULE_DESCRIPTION("Tegra SPDIF ASoC driver");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:" DRV_NAME);
+++ /dev/null
-/*
- * tegra_spdif.h - Definitions for Tegra SPDIF driver
- *
- * Author: Stephen Warren <swarren@nvidia.com>
- * Copyright (C) 2011 - NVIDIA, Inc.
- *
- * Based on code copyright/by:
- * Copyright (c) 2008-2009, NVIDIA Corporation
- *
- * 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
- *
- */
-
-#ifndef __TEGRA_SPDIF_H__
-#define __TEGRA_SPDIF_H__
-
-#include "tegra_pcm.h"
-
-/* Offsets from TEGRA_SPDIF_BASE */
-
-#define TEGRA_SPDIF_CTRL 0x0
-#define TEGRA_SPDIF_STATUS 0x4
-#define TEGRA_SPDIF_STROBE_CTRL 0x8
-#define TEGRA_SPDIF_DATA_FIFO_CSR 0x0C
-#define TEGRA_SPDIF_DATA_OUT 0x40
-#define TEGRA_SPDIF_DATA_IN 0x80
-#define TEGRA_SPDIF_CH_STA_RX_A 0x100
-#define TEGRA_SPDIF_CH_STA_RX_B 0x104
-#define TEGRA_SPDIF_CH_STA_RX_C 0x108
-#define TEGRA_SPDIF_CH_STA_RX_D 0x10C
-#define TEGRA_SPDIF_CH_STA_RX_E 0x110
-#define TEGRA_SPDIF_CH_STA_RX_F 0x114
-#define TEGRA_SPDIF_CH_STA_TX_A 0x140
-#define TEGRA_SPDIF_CH_STA_TX_B 0x144
-#define TEGRA_SPDIF_CH_STA_TX_C 0x148
-#define TEGRA_SPDIF_CH_STA_TX_D 0x14C
-#define TEGRA_SPDIF_CH_STA_TX_E 0x150
-#define TEGRA_SPDIF_CH_STA_TX_F 0x154
-#define TEGRA_SPDIF_USR_STA_RX_A 0x180
-#define TEGRA_SPDIF_USR_DAT_TX_A 0x1C0
-
-/* Fields in TEGRA_SPDIF_CTRL */
-
-/* Start capturing from 0=right, 1=left channel */
-#define TEGRA_SPDIF_CTRL_CAP_LC (1 << 30)
-
-/* SPDIF receiver(RX) enable */
-#define TEGRA_SPDIF_CTRL_RX_EN (1 << 29)
-
-/* SPDIF Transmitter(TX) enable */
-#define TEGRA_SPDIF_CTRL_TX_EN (1 << 28)
-
-/* Transmit Channel status */
-#define TEGRA_SPDIF_CTRL_TC_EN (1 << 27)
-
-/* Transmit user Data */
-#define TEGRA_SPDIF_CTRL_TU_EN (1 << 26)
-
-/* Interrupt on transmit error */
-#define TEGRA_SPDIF_CTRL_IE_TXE (1 << 25)
-
-/* Interrupt on receive error */
-#define TEGRA_SPDIF_CTRL_IE_RXE (1 << 24)
-
-/* Interrupt on invalid preamble */
-#define TEGRA_SPDIF_CTRL_IE_P (1 << 23)
-
-/* Interrupt on "B" preamble */
-#define TEGRA_SPDIF_CTRL_IE_B (1 << 22)
-
-/* Interrupt when block of channel status received */
-#define TEGRA_SPDIF_CTRL_IE_C (1 << 21)
-
-/* Interrupt when a valid information unit (IU) is received */
-#define TEGRA_SPDIF_CTRL_IE_U (1 << 20)
-
-/* Interrupt when RX user FIFO attention level is reached */
-#define TEGRA_SPDIF_CTRL_QE_RU (1 << 19)
-
-/* Interrupt when TX user FIFO attention level is reached */
-#define TEGRA_SPDIF_CTRL_QE_TU (1 << 18)
-
-/* Interrupt when RX data FIFO attention level is reached */
-#define TEGRA_SPDIF_CTRL_QE_RX (1 << 17)
-
-/* Interrupt when TX data FIFO attention level is reached */
-#define TEGRA_SPDIF_CTRL_QE_TX (1 << 16)
-
-/* Loopback test mode enable */
-#define TEGRA_SPDIF_CTRL_LBK_EN (1 << 15)
-
-/*
- * Pack data mode:
- * 0 = Single data (16 bit needs to be padded to match the
- * interface data bit size).
- * 1 = Packeted left/right channel data into a single word.
- */
-#define TEGRA_SPDIF_CTRL_PACK (1 << 14)
-
-/*
- * 00 = 16bit data
- * 01 = 20bit data
- * 10 = 24bit data
- * 11 = raw data
- */
-#define TEGRA_SPDIF_BIT_MODE_16BIT 0
-#define TEGRA_SPDIF_BIT_MODE_20BIT 1
-#define TEGRA_SPDIF_BIT_MODE_24BIT 2
-#define TEGRA_SPDIF_BIT_MODE_RAW 3
-
-#define TEGRA_SPDIF_CTRL_BIT_MODE_SHIFT 12
-#define TEGRA_SPDIF_CTRL_BIT_MODE_MASK (3 << TEGRA_SPDIF_CTRL_BIT_MODE_SHIFT)
-#define TEGRA_SPDIF_CTRL_BIT_MODE_16BIT (TEGRA_SPDIF_BIT_MODE_16BIT << TEGRA_SPDIF_CTRL_BIT_MODE_SHIFT)
-#define TEGRA_SPDIF_CTRL_BIT_MODE_20BIT (TEGRA_SPDIF_BIT_MODE_20BIT << TEGRA_SPDIF_CTRL_BIT_MODE_SHIFT)
-#define TEGRA_SPDIF_CTRL_BIT_MODE_24BIT (TEGRA_SPDIF_BIT_MODE_24BIT << TEGRA_SPDIF_CTRL_BIT_MODE_SHIFT)
-#define TEGRA_SPDIF_CTRL_BIT_MODE_RAW (TEGRA_SPDIF_BIT_MODE_RAW << TEGRA_SPDIF_CTRL_BIT_MODE_SHIFT)
-
-/* Fields in TEGRA_SPDIF_STATUS */
-
-/*
- * Note: IS_P, IS_B, IS_C, and IS_U are sticky bits. Software must
- * write a 1 to the corresponding bit location to clear the status.
- */
-
-/*
- * Receiver(RX) shifter is busy receiving data.
- * This bit is asserted when the receiver first locked onto the
- * preamble of the data stream after RX_EN is asserted. This bit is
- * deasserted when either,
- * (a) the end of a frame is reached after RX_EN is deeasserted, or
- * (b) the SPDIF data stream becomes inactive.
- */
-#define TEGRA_SPDIF_STATUS_RX_BSY (1 << 29)
-
-/*
- * Transmitter(TX) shifter is busy transmitting data.
- * This bit is asserted when TX_EN is asserted.
- * This bit is deasserted when the end of a frame is reached after
- * TX_EN is deasserted.
- */
-#define TEGRA_SPDIF_STATUS_TX_BSY (1 << 28)
-
-/*
- * TX is busy shifting out channel status.
- * This bit is asserted when both TX_EN and TC_EN are asserted and
- * data from CH_STA_TX_A register is loaded into the internal shifter.
- * This bit is deasserted when either,
- * (a) the end of a frame is reached after TX_EN is deasserted, or
- * (b) CH_STA_TX_F register is loaded into the internal shifter.
- */
-#define TEGRA_SPDIF_STATUS_TC_BSY (1 << 27)
-
-/*
- * TX User data FIFO busy.
- * This bit is asserted when TX_EN and TXU_EN are asserted and
- * there's data in the TX user FIFO. This bit is deassert when either,
- * (a) the end of a frame is reached after TX_EN is deasserted, or
- * (b) there's no data left in the TX user FIFO.
- */
-#define TEGRA_SPDIF_STATUS_TU_BSY (1 << 26)
-
-/* TX FIFO Underrun error status */
-#define TEGRA_SPDIF_STATUS_TX_ERR (1 << 25)
-
-/* RX FIFO Overrun error status */
-#define TEGRA_SPDIF_STATUS_RX_ERR (1 << 24)
-
-/* Preamble status: 0=Preamble OK, 1=bad/missing preamble */
-#define TEGRA_SPDIF_STATUS_IS_P (1 << 23)
-
-/* B-preamble detection status: 0=not detected, 1=B-preamble detected */
-#define TEGRA_SPDIF_STATUS_IS_B (1 << 22)
-
-/*
- * RX channel block data receive status:
- * 0=entire block not recieved yet.
- * 1=received entire block of channel status,
- */
-#define TEGRA_SPDIF_STATUS_IS_C (1 << 21)
-
-/* RX User Data Valid flag: 1=valid IU detected, 0 = no IU detected. */
-#define TEGRA_SPDIF_STATUS_IS_U (1 << 20)
-
-/*
- * RX User FIFO Status:
- * 1=attention level reached, 0=attention level not reached.
- */
-#define TEGRA_SPDIF_STATUS_QS_RU (1 << 19)
-
-/*
- * TX User FIFO Status:
- * 1=attention level reached, 0=attention level not reached.
- */
-#define TEGRA_SPDIF_STATUS_QS_TU (1 << 18)
-
-/*
- * RX Data FIFO Status:
- * 1=attention level reached, 0=attention level not reached.
- */
-#define TEGRA_SPDIF_STATUS_QS_RX (1 << 17)
-
-/*
- * TX Data FIFO Status:
- * 1=attention level reached, 0=attention level not reached.
- */
-#define TEGRA_SPDIF_STATUS_QS_TX (1 << 16)
-
-/* Fields in TEGRA_SPDIF_STROBE_CTRL */
-
-/*
- * Indicates the approximate number of detected SPDIFIN clocks within a
- * bi-phase period.
- */
-#define TEGRA_SPDIF_STROBE_CTRL_PERIOD_SHIFT 16
-#define TEGRA_SPDIF_STROBE_CTRL_PERIOD_MASK (0xff << TEGRA_SPDIF_STROBE_CTRL_PERIOD_SHIFT)
-
-/* Data strobe mode: 0=Auto-locked 1=Manual locked */
-#define TEGRA_SPDIF_STROBE_CTRL_STROBE (1 << 15)
-
-/*
- * Manual data strobe time within the bi-phase clock period (in terms of
- * the number of over-sampling clocks).
- */
-#define TEGRA_SPDIF_STROBE_CTRL_DATA_STROBES_SHIFT 8
-#define TEGRA_SPDIF_STROBE_CTRL_DATA_STROBES_MASK (0x1f << TEGRA_SPDIF_STROBE_CTRL_DATA_STROBES_SHIFT)
-
-/*
- * Manual SPDIFIN bi-phase clock period (in terms of the number of
- * over-sampling clocks).
- */
-#define TEGRA_SPDIF_STROBE_CTRL_CLOCK_PERIOD_SHIFT 0
-#define TEGRA_SPDIF_STROBE_CTRL_CLOCK_PERIOD_MASK (0x3f << TEGRA_SPDIF_STROBE_CTRL_CLOCK_PERIOD_SHIFT)
-
-/* Fields in SPDIF_DATA_FIFO_CSR */
-
-/* Clear Receiver User FIFO (RX USR.FIFO) */
-#define TEGRA_SPDIF_DATA_FIFO_CSR_RU_CLR (1 << 31)
-
-#define TEGRA_SPDIF_FIFO_ATN_LVL_U_ONE_SLOT 0
-#define TEGRA_SPDIF_FIFO_ATN_LVL_U_TWO_SLOTS 1
-#define TEGRA_SPDIF_FIFO_ATN_LVL_U_THREE_SLOTS 2
-#define TEGRA_SPDIF_FIFO_ATN_LVL_U_FOUR_SLOTS 3
-
-/* RU FIFO attention level */
-#define TEGRA_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_SHIFT 29
-#define TEGRA_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_MASK \
- (0x3 << TEGRA_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_SHIFT)
-#define TEGRA_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_RU1_WORD_FULL \
- (TEGRA_SPDIF_FIFO_ATN_LVL_U_ONE_SLOT << TEGRA_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_SHIFT)
-#define TEGRA_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_RU2_WORD_FULL \
- (TEGRA_SPDIF_FIFO_ATN_LVL_U_TWO_SLOTS << TEGRA_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_SHIFT)
-#define TEGRA_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_RU3_WORD_FULL \
- (TEGRA_SPDIF_FIFO_ATN_LVL_U_THREE_SLOTS << TEGRA_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_SHIFT)
-#define TEGRA_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_RU4_WORD_FULL \
- (TEGRA_SPDIF_FIFO_ATN_LVL_U_FOUR_SLOTS << TEGRA_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_SHIFT)
-
-/* Number of RX USR.FIFO levels with valid data. */
-#define TEGRA_SPDIF_DATA_FIFO_CSR_RU_FULL_COUNT_SHIFT 24
-#define TEGRA_SPDIF_DATA_FIFO_CSR_RU_FULL_COUNT_MASK (0x1f << TEGRA_SPDIF_DATA_FIFO_CSR_RU_FULL_COUNT_SHIFT)
-
-/* Clear Transmitter User FIFO (TX USR.FIFO) */
-#define TEGRA_SPDIF_DATA_FIFO_CSR_TU_CLR (1 << 23)
-
-/* TU FIFO attention level */
-#define TEGRA_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_SHIFT 21
-#define TEGRA_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_MASK \
- (0x3 << TEGRA_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_SHIFT)
-#define TEGRA_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_TU1_WORD_FULL \
- (TEGRA_SPDIF_FIFO_ATN_LVL_U_ONE_SLOT << TEGRA_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_SHIFT)
-#define TEGRA_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_TU2_WORD_FULL \
- (TEGRA_SPDIF_FIFO_ATN_LVL_U_TWO_SLOTS << TEGRA_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_SHIFT)
-#define TEGRA_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_TU3_WORD_FULL \
- (TEGRA_SPDIF_FIFO_ATN_LVL_U_THREE_SLOTS << TEGRA_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_SHIFT)
-#define TEGRA_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_TU4_WORD_FULL \
- (TEGRA_SPDIF_FIFO_ATN_LVL_U_FOUR_SLOTS << TEGRA_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_SHIFT)
-
-/* Number of TX USR.FIFO levels that could be filled. */
-#define TEGRA_SPDIF_DATA_FIFO_CSR_TU_EMPTY_COUNT_SHIFT 16
-#define TEGRA_SPDIF_DATA_FIFO_CSR_TU_EMPTY_COUNT_MASK (0x1f << SPDIF_DATA_FIFO_CSR_TU_EMPTY_COUNT_SHIFT)
-
-/* Clear Receiver Data FIFO (RX DATA.FIFO) */
-#define TEGRA_SPDIF_DATA_FIFO_CSR_RX_CLR (1 << 15)
-
-#define TEGRA_SPDIF_FIFO_ATN_LVL_D_ONE_SLOT 0
-#define TEGRA_SPDIF_FIFO_ATN_LVL_D_FOUR_SLOTS 1
-#define TEGRA_SPDIF_FIFO_ATN_LVL_D_EIGHT_SLOTS 2
-#define TEGRA_SPDIF_FIFO_ATN_LVL_D_TWELVE_SLOTS 3
-
-/* RU FIFO attention level */
-#define TEGRA_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_SHIFT 13
-#define TEGRA_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_MASK \
- (0x3 << TEGRA_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_SHIFT)
-#define TEGRA_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_RU1_WORD_FULL \
- (TEGRA_SPDIF_FIFO_ATN_LVL_D_ONE_SLOT << TEGRA_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_SHIFT)
-#define TEGRA_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_RU4_WORD_FULL \
- (TEGRA_SPDIF_FIFO_ATN_LVL_D_FOUR_SLOTS << TEGRA_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_SHIFT)
-#define TEGRA_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_RU8_WORD_FULL \
- (TEGRA_SPDIF_FIFO_ATN_LVL_D_EIGHT_SLOTS << TEGRA_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_SHIFT)
-#define TEGRA_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_RU12_WORD_FULL \
- (TEGRA_SPDIF_FIFO_ATN_LVL_D_TWELVE_SLOTS << TEGRA_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_SHIFT)
-
-/* Number of RX DATA.FIFO levels with valid data. */
-#define TEGRA_SPDIF_DATA_FIFO_CSR_RX_FULL_COUNT_SHIFT 8
-#define TEGRA_SPDIF_DATA_FIFO_CSR_RX_FULL_COUNT_MASK (0x1f << TEGRA_SPDIF_DATA_FIFO_CSR_RX_FULL_COUNT_SHIFT)
-
-/* Clear Transmitter Data FIFO (TX DATA.FIFO) */
-#define TEGRA_SPDIF_DATA_FIFO_CSR_TX_CLR (1 << 7)
-
-/* TU FIFO attention level */
-#define TEGRA_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_SHIFT 5
-#define TEGRA_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_MASK \
- (0x3 << TEGRA_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_SHIFT)
-#define TEGRA_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_TU1_WORD_FULL \
- (TEGRA_SPDIF_FIFO_ATN_LVL_D_ONE_SLOT << TEGRA_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_SHIFT)
-#define TEGRA_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_TU4_WORD_FULL \
- (TEGRA_SPDIF_FIFO_ATN_LVL_D_FOUR_SLOTS << TEGRA_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_SHIFT)
-#define TEGRA_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_TU8_WORD_FULL \
- (TEGRA_SPDIF_FIFO_ATN_LVL_D_EIGHT_SLOTS << TEGRA_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_SHIFT)
-#define TEGRA_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_TU12_WORD_FULL \
- (TEGRA_SPDIF_FIFO_ATN_LVL_D_TWELVE_SLOTS << TEGRA_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_SHIFT)
-
-/* Number of TX DATA.FIFO levels that could be filled. */
-#define TEGRA_SPDIF_DATA_FIFO_CSR_TX_EMPTY_COUNT_SHIFT 0
-#define TEGRA_SPDIF_DATA_FIFO_CSR_TX_EMPTY_COUNT_MASK (0x1f << SPDIF_DATA_FIFO_CSR_TX_EMPTY_COUNT_SHIFT)
-
-/* Fields in TEGRA_SPDIF_DATA_OUT */
-
-/*
- * This register has 5 different formats:
- * 16-bit (BIT_MODE=00, PACK=0)
- * 20-bit (BIT_MODE=01, PACK=0)
- * 24-bit (BIT_MODE=10, PACK=0)
- * raw (BIT_MODE=11, PACK=0)
- * 16-bit packed (BIT_MODE=00, PACK=1)
- */
-
-#define TEGRA_SPDIF_DATA_OUT_DATA_16_SHIFT 0
-#define TEGRA_SPDIF_DATA_OUT_DATA_16_MASK (0xffff << TEGRA_SPDIF_DATA_OUT_DATA_16_SHIFT)
-
-#define TEGRA_SPDIF_DATA_OUT_DATA_20_SHIFT 0
-#define TEGRA_SPDIF_DATA_OUT_DATA_20_MASK (0xfffff << TEGRA_SPDIF_DATA_OUT_DATA_20_SHIFT)
-
-#define TEGRA_SPDIF_DATA_OUT_DATA_24_SHIFT 0
-#define TEGRA_SPDIF_DATA_OUT_DATA_24_MASK (0xffffff << TEGRA_SPDIF_DATA_OUT_DATA_24_SHIFT)
-
-#define TEGRA_SPDIF_DATA_OUT_DATA_RAW_P (1 << 31)
-#define TEGRA_SPDIF_DATA_OUT_DATA_RAW_C (1 << 30)
-#define TEGRA_SPDIF_DATA_OUT_DATA_RAW_U (1 << 29)
-#define TEGRA_SPDIF_DATA_OUT_DATA_RAW_V (1 << 28)
-
-#define TEGRA_SPDIF_DATA_OUT_DATA_RAW_DATA_SHIFT 8
-#define TEGRA_SPDIF_DATA_OUT_DATA_RAW_DATA_MASK (0xfffff << TEGRA_SPDIF_DATA_OUT_DATA_RAW_DATA_SHIFT)
-
-#define TEGRA_SPDIF_DATA_OUT_DATA_RAW_AUX_SHIFT 4
-#define TEGRA_SPDIF_DATA_OUT_DATA_RAW_AUX_MASK (0xf << TEGRA_SPDIF_DATA_OUT_DATA_RAW_AUX_SHIFT)
-
-#define TEGRA_SPDIF_DATA_OUT_DATA_RAW_PREAMBLE_SHIFT 0
-#define TEGRA_SPDIF_DATA_OUT_DATA_RAW_PREAMBLE_MASK (0xf << TEGRA_SPDIF_DATA_OUT_DATA_RAW_PREAMBLE_SHIFT)
-
-#define TEGRA_SPDIF_DATA_OUT_DATA_16_PACKED_RIGHT_SHIFT 16
-#define TEGRA_SPDIF_DATA_OUT_DATA_16_PACKED_RIGHT_MASK (0xffff << TEGRA_SPDIF_DATA_OUT_DATA_16_PACKED_RIGHT_SHIFT)
-
-#define TEGRA_SPDIF_DATA_OUT_DATA_16_PACKED_LEFT_SHIFT 0
-#define TEGRA_SPDIF_DATA_OUT_DATA_16_PACKED_LEFT_MASK (0xffff << TEGRA_SPDIF_DATA_OUT_DATA_16_PACKED_LEFT_SHIFT)
-
-/* Fields in TEGRA_SPDIF_DATA_IN */
-
-/*
- * This register has 5 different formats:
- * 16-bit (BIT_MODE=00, PACK=0)
- * 20-bit (BIT_MODE=01, PACK=0)
- * 24-bit (BIT_MODE=10, PACK=0)
- * raw (BIT_MODE=11, PACK=0)
- * 16-bit packed (BIT_MODE=00, PACK=1)
- *
- * Bits 31:24 are common to all modes except 16-bit packed
- */
-
-#define TEGRA_SPDIF_DATA_IN_DATA_P (1 << 31)
-#define TEGRA_SPDIF_DATA_IN_DATA_C (1 << 30)
-#define TEGRA_SPDIF_DATA_IN_DATA_U (1 << 29)
-#define TEGRA_SPDIF_DATA_IN_DATA_V (1 << 28)
-
-#define TEGRA_SPDIF_DATA_IN_DATA_PREAMBLE_SHIFT 24
-#define TEGRA_SPDIF_DATA_IN_DATA_PREAMBLE_MASK (0xf << TEGRA_SPDIF_DATA_IN_DATA_PREAMBLE_SHIFT)
-
-#define TEGRA_SPDIF_DATA_IN_DATA_16_SHIFT 0
-#define TEGRA_SPDIF_DATA_IN_DATA_16_MASK (0xffff << TEGRA_SPDIF_DATA_IN_DATA_16_SHIFT)
-
-#define TEGRA_SPDIF_DATA_IN_DATA_20_SHIFT 0
-#define TEGRA_SPDIF_DATA_IN_DATA_20_MASK (0xfffff << TEGRA_SPDIF_DATA_IN_DATA_20_SHIFT)
-
-#define TEGRA_SPDIF_DATA_IN_DATA_24_SHIFT 0
-#define TEGRA_SPDIF_DATA_IN_DATA_24_MASK (0xffffff << TEGRA_SPDIF_DATA_IN_DATA_24_SHIFT)
-
-#define TEGRA_SPDIF_DATA_IN_DATA_RAW_DATA_SHIFT 8
-#define TEGRA_SPDIF_DATA_IN_DATA_RAW_DATA_MASK (0xfffff << TEGRA_SPDIF_DATA_IN_DATA_RAW_DATA_SHIFT)
-
-#define TEGRA_SPDIF_DATA_IN_DATA_RAW_AUX_SHIFT 4
-#define TEGRA_SPDIF_DATA_IN_DATA_RAW_AUX_MASK (0xf << TEGRA_SPDIF_DATA_IN_DATA_RAW_AUX_SHIFT)
-
-#define TEGRA_SPDIF_DATA_IN_DATA_RAW_PREAMBLE_SHIFT 0
-#define TEGRA_SPDIF_DATA_IN_DATA_RAW_PREAMBLE_MASK (0xf << TEGRA_SPDIF_DATA_IN_DATA_RAW_PREAMBLE_SHIFT)
-
-#define TEGRA_SPDIF_DATA_IN_DATA_16_PACKED_RIGHT_SHIFT 16
-#define TEGRA_SPDIF_DATA_IN_DATA_16_PACKED_RIGHT_MASK (0xffff << TEGRA_SPDIF_DATA_IN_DATA_16_PACKED_RIGHT_SHIFT)
-
-#define TEGRA_SPDIF_DATA_IN_DATA_16_PACKED_LEFT_SHIFT 0
-#define TEGRA_SPDIF_DATA_IN_DATA_16_PACKED_LEFT_MASK (0xffff << TEGRA_SPDIF_DATA_IN_DATA_16_PACKED_LEFT_SHIFT)
-
-/* Fields in TEGRA_SPDIF_CH_STA_RX_A */
-/* Fields in TEGRA_SPDIF_CH_STA_RX_B */
-/* Fields in TEGRA_SPDIF_CH_STA_RX_C */
-/* Fields in TEGRA_SPDIF_CH_STA_RX_D */
-/* Fields in TEGRA_SPDIF_CH_STA_RX_E */
-/* Fields in TEGRA_SPDIF_CH_STA_RX_F */
-
-/*
- * The 6-word receive channel data page buffer holds a block (192 frames) of
- * channel status information. The order of receive is from LSB to MSB
- * bit, and from CH_STA_RX_A to CH_STA_RX_F then back to CH_STA_RX_A.
- */
-
-/* Fields in TEGRA_SPDIF_CH_STA_TX_A */
-/* Fields in TEGRA_SPDIF_CH_STA_TX_B */
-/* Fields in TEGRA_SPDIF_CH_STA_TX_C */
-/* Fields in TEGRA_SPDIF_CH_STA_TX_D */
-/* Fields in TEGRA_SPDIF_CH_STA_TX_E */
-/* Fields in TEGRA_SPDIF_CH_STA_TX_F */
-
-/*
- * The 6-word transmit channel data page buffer holds a block (192 frames) of
- * channel status information. The order of transmission is from LSB to MSB
- * bit, and from CH_STA_TX_A to CH_STA_TX_F then back to CH_STA_TX_A.
- */
-
-/* Fields in TEGRA_SPDIF_USR_STA_RX_A */
-
-/*
- * This 4-word deep FIFO receives user FIFO field information. The order of
- * receive is from LSB to MSB bit.
- */
-
-/* Fields in TEGRA_SPDIF_USR_DAT_TX_A */
-
-/*
- * This 4-word deep FIFO transmits user FIFO field information. The order of
- * transmission is from LSB to MSB bit.
- */
-
-struct tegra_spdif {
- struct clk *clk_spdif_out;
- struct tegra_pcm_dma_params capture_dma_data;
- struct tegra_pcm_dma_params playback_dma_data;
- void __iomem *regs;
- struct dentry *debug;
- u32 reg_ctrl;
-};
-
-#endif
projects / mirror_ubuntu-artful-kernel.git / commitdiff