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/*
* arch/arm/mach-tegra/include/mach/tegra_das.h
*
* Declarations of Tegra Digital Audio Switch (das)
*
* Copyright (c) 2010-2011, NVIDIA Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef __MACH_TEGRA_DAS_H
#define __MACH_TEGRA_DAS_H
#include <linux/kernel.h>
/*
-----------------
| |
| |<----> DAP1
DAC1 <----> | Digital |
--------- | |<----> DAP2
| | | Audio |
| Tegra | DAC2 <----> | |<----> DAP3
| SoC | | Switch |
| | | |<----> DAP4
--------- | (DAS) |
DAC3 <----> | |<----> DAP5
| |
| |
-----------------
*/
#define APB_MISC_DAS_DAP_CTRL_SEL_0 (0xc00)
#define APB_MISC_DAS_DAP_CTRL_SEL_1 (0xc04)
#define APB_MISC_DAS_DAP_CTRL_SEL_2 (0xc08)
#define APB_MISC_DAS_DAP_CTRL_SEL_3 (0xc0c)
#define APB_MISC_DAS_DAP_CTRL_SEL_4 (0xc10)
#define APB_MISC_DAS_DAC_INPUT_DATA_CLK_SEL_0 (0xc40)
#define APB_MISC_DAS_DAC_INPUT_DATA_CLK_SEL_1 (0xc44)
#define APB_MISC_DAS_DAC_INPUT_DATA_CLK_SEL_2 (0xc48)
#define DAP_MS_SEL_SHIFT (31)
#define DAP_MS_SEL_DEFAULT_MASK (0x1)
#define DAP_SDATA1_TX_RX_SHIFT (30)
#define DAP_SDATA1_TX_RX_DEFAULT_MASK (0x1)
#define DAP_SDATA2_RX_TX_SHIFT (29)
#define DAP_SDATA2_RX_TX_DEFAULT_MASK (0x1)
#define DAP_CTRL_SEL_SHIFT (0)
#define DAP_CTRL_SEL_DEFAULT_MASK (0x1f)
#define DAC_SDATA2_SEL_SHIFT (28)
#define DAC_SDATA2_SEL_DEFAULT_MASK (0xf)
#define DAC_SDATA1_SEL_SHIFT (24)
#define DAC_SDATA1_SEL_DEFAULT_MASK (0xf)
#define DAC_CLK_SEL_SHIFT (0)
#define DAC_CLK_SEL_DEFAULT_MASK (0xf)
#define DAP_CTRL_SEL_DAC1 (0)
#define DAP_CTRL_SEL_DAC2 (1)
#define DAP_CTRL_SEL_DAC3 (2)
#define DAP_CTRL_SEL_DAP1 (16)
#define DAP_CTRL_SEL_DAP2 (17)
#define DAP_CTRL_SEL_DAP3 (18)
#define DAP_CTRL_SEL_DAP4 (19)
#define DAP_CTRL_SEL_DAP5 (20)
#define MAX_CONNECTIONLINES 8
typedef enum tegra_das_port_t {
tegra_das_port_none = 0,
tegra_das_port_dap1,
tegra_das_port_dap2,
tegra_das_port_dap3,
tegra_das_port_dap4,
tegra_das_port_dap5,
tegra_das_port_i2s1,
tegra_das_port_i2s2,
tegra_das_port_ac97
} tegra_das_port;
#define MAX_DAP_PORTS (tegra_das_port_dap5 + 1)
/* defines possible hardware connected to DAP */
enum tegra_audio_codec_type {
tegra_audio_codec_type_none = 0,
tegra_audio_codec_type_hifi,
tegra_audio_codec_type_voice,
tegra_audio_codec_type_bluetooth,
tegra_audio_codec_type_baseband,
tegra_audio_codec_type_fm_radio,
};
/* index for possible connection based on the use case */
enum tegra_das_port_con_id {
tegra_das_port_con_id_none = 0,
tegra_das_port_con_id_hifi,
tegra_das_port_con_id_voice,
tegra_das_port_con_id_analog_radio,
tegra_das_port_con_id_digital_radio,
tegra_das_port_con_id_bt_codec,
tegra_das_port_con_id_voicecall_no_bt,
tegra_das_port_con_id_voicecall_no_bt_record,
tegra_das_port_con_id_voicecall_with_bt,
tegra_das_port_con_id_voicecall_with_bt_record,
tegra_das_port_con_id_max
};
/* data format supported */
enum dac_dap_data_format {
dac_dap_data_format_none = 0x0,
dac_dap_data_format_i2s = 0x1,
dac_dap_data_format_dsp = 0x2,
dac_dap_data_format_rjm = 0x4,
dac_dap_data_format_ljm = 0x8,
dac_dap_data_format_all = 0x7FFFFFFF
};
struct audio_dev_property {
unsigned int num_channels;
unsigned int bits_per_sample;
unsigned int rate;
unsigned int dac_dap_data_comm_format;
};
/*
* structure which contains dap endpoint
* dac_port contains dac port for particular dap and
* codec_type contains possible codec which can be connected to dap port
*/
struct tegra_dap_property {
tegra_das_port dac_port;
tegra_das_port dap_port;
enum tegra_audio_codec_type codec_type;
struct audio_dev_property device_property;
};
struct tegra_das_con_line {
tegra_das_port src;
tegra_das_port dest;
bool src_master;
};
struct tegra_das_con {
enum tegra_das_port_con_id con_id;
unsigned int num_entries;
struct tegra_das_con_line con_line[MAX_CONNECTIONLINES];
};
struct tegra_das_platform_data {
void *driver_data;
const char *dap_clk;
const struct tegra_dap_property tegra_dap_port_info_table[MAX_DAP_PORTS];
const struct tegra_das_con tegra_das_con_table[MAX_DAP_PORTS];
};
struct tegra_das_mux_select {
tegra_das_port port_type;
u32 reg_offset;
u32 mux_mask;
u32 mux_shift;
u32 sdata1_mask;
u32 sdata1_shift;
u32 sdata2_mask;
u32 sdata2_shift;
u32 ms_mode_mask;
u32 ms_mode_shift;
u32 mux_value;
};
struct das_regs_cache {
u32 das_dap_ctrl_0;
u32 das_dap_ctrl_1;
u32 das_dap_ctrl_2;
u32 das_dap_ctrl_3;
u32 das_dap_ctrl_4;
u32 das_dac_input_data_clk_0;
u32 das_dac_input_data_clk_1;
u32 das_dac_input_data_clk_2;
};
int tegra_das_open(void);
int tegra_das_close(void);
/*
* Function to make connections between dac and dap.
* con_id specifies the enum depending on the required port connections
* enable, if true do connections else disconnect
*/
int tegra_das_set_connection(enum tegra_das_port_con_id new_con_id);
/*
* Function to get current port connection for das
*/
int tegra_das_get_connection(void);
/*
* Function to query if certain das port need to be
* configured as master for current das connection
*/
bool tegra_das_is_port_master(enum tegra_audio_codec_type codec_type);
/*
* Function to get data format for certain codec for current das connection
*/
int tegra_das_get_codec_data_fmt(enum tegra_audio_codec_type codec_type);
/*
* Function to get dap Mclk handle
*/
struct clk* tegra_das_get_dap_mclk(void);
/*
* Function to set power state on das's dap port
* if is_normal is true then power mode is normal else tristated
*/
int tegra_das_power_mode(bool is_normal);
/*
* Function to get the content of all the das registers
*/
void tegra_das_get_all_regs(struct das_regs_cache* regs);
/*
* Function to set values in all the das registers
*/
void tegra_das_set_all_regs(struct das_regs_cache* regs);
#endif
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