sdfm_drv.h

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/*
 * Copyright (C) 2023 Texas Instruments Incorporated - https://www.ti.com/
 *
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *  * Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 *  * Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the
 *    distribution.
 *
 *  * Neither the name of Texas Instruments Incorporated nor the names of
 *    its contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
#ifndef _SDFM_DRV_H_
#define _SDFM_DRV_H_
 
#ifdef __cplusplus
extern "C" {
#endif
 
#include <drivers/soc.h>
 
 
 
/* ========================================================================== */
/*                           Macros                                           */
/* ========================================================================== */
 
 
#define PRU_ICSSG_DRAM0_SLV_RAM     ( CSL_PRU_ICSSG0_DRAM0_SLV_RAM_BASE )
#define PRU_ICSSG_DRAM1_SLV_RAM     ( CSL_PRU_ICSSG0_DRAM1_SLV_RAM_BASE )
 
#define DEF_SD_CH_CTRL_CH_EN        ( 0 )       /* default all chs disabled */
#define BF_CH_EN_MASK               ( 0x1 )
#define SDFM_CH_CTRL_CH_EN_BF_CH0_EN_SHIFT   ( 0 )
#define SDFM_CH_CTRL_CH_EN_BF_CH0_EN_MASK    ( BF_CH_EN_MASK << SDFM_CH_CTRL_CH_EN_BF_CH0_EN_SHIFT )
#define SDFM_CH_CTRL_CH_EN_BF_CH1_EN_SHIFT   ( 1 )
#define SDFM_CH_CTRL_CH_EN_BF_CH1_EN_MASK    ( BF_CH_EN_MASK << SDFM_CH_CTRL_CH_EN_BF_CH1_EN_SHIFT )
#define SDFM_CH_CTRL_CH_EN_BF_CH2_EN_SHIFT   ( 2 )
#define SDFM_CH_CTRL_CH_EN_BF_CH2_EN_MASK    ( BF_CH_EN_MASK << SDFM_CH_CTRL_CH_EN_BF_CH2_EN_SHIFT )
#define SDFM_CH_CTRL_CH_EN_BF_CH3_EN_SHIFT   ( 3 )
#define SDFM_CH_CTRL_CH_EN_BF_CH3_EN_MASK    ( BF_CH_EN_MASK << SDFM_CH_CTRL_CH_EN_BF_CH3_EN_SHIFT )
#define SDFM_CH_CTRL_CH_EN_BF_CH4_EN_SHIFT   ( 4 )
#define SDFM_CH_CTRL_CH_EN_BF_CH4_EN_MASK    ( BF_CH_EN_MASK << SDFM_CH_CTRL_CH_EN_BF_CH4_EN_SHIFT )
#define SDFM_CH_CTRL_CH_EN_BF_CH5_EN_SHIFT   ( 5 )
#define SDFM_CH_CTRL_CH_EN_BF_CH5_EN_MASK    ( BF_CH_EN_MASK << SDFM_CH_CTRL_CH_EN_BF_CH5_EN_SHIFT )
#define SDFM_CH_CTRL_CH_EN_BF_CH6_EN_SHIFT   ( 6 )
#define SDFM_CH_CTRL_CH_EN_BF_CH6_EN_MASK    ( BF_CH_EN_MASK << SDFM_CH_CTRL_CH_EN_BF_CH6_EN_SHIFT )
#define SDFM_CH_CTRL_CH_EN_BF_CH7_EN_SHIFT   ( 7 )
#define SDFM_CH_CTRL_CH_EN_BF_CH7_EN_MASK    ( BF_CH_EN_MASK << SDFM_CH_CTRL_CH_EN_BF_CH7_EN_SHIFT )
#define SDFM_CH_CTRL_CH_EN_BF_CH8_EN_SHIFT   ( 8 )
#define SDFM_CH_CTRL_CH_EN_BF_CH8_EN_MASK    ( BF_CH_EN_MASK << SDFM_CH_CTRL_CH_EN_BF_CH8_EN_SHIFT )
#define SDFM_CH_CTRL_CH_EN_BF_CH9_EN_SHIFT   ( 9 )
#define SDFM_CH_CTRL_CH_EN_BF_CH9_EN_MASK    ( BF_CH_EN_MASK << SDFM_CH_CTRL_CH_EN_BF_CH9_EN_SHIFT )
#define SDFM_CH_CTRL_CH_EN_SHIFT             ( SDFM_CH_CTRL_CH_EN_BF_CH0_EN_SHIFT )
#define SDFM_CH_CTRL_CH_EN_MASK \
    ( SDFM_CH_CTRL_CH_EN_BF_CH0_EN_MASK | \
      SDFM_CH_CTRL_CH_EN_BF_CH1_EN_MASK | \
      SDFM_CH_CTRL_CH_EN_BF_CH2_EN_MASK | \
      SDFM_CH_CTRL_CH_EN_BF_CH3_EN_MASK | \
      SDFM_CH_CTRL_CH_EN_BF_CH4_EN_MASK | \
      SDFM_CH_CTRL_CH_EN_BF_CH5_EN_MASK | \
      SDFM_CH_CTRL_CH_EN_BF_CH6_EN_MASK | \
      SDFM_CH_CTRL_CH_EN_BF_CH7_EN_MASK | \
      SDFM_CH_CTRL_CH_EN_BF_CH8_EN_MASK | \
      SDFM_CH_CTRL_CH_EN_BF_CH9_EN_MASK )
 
#define SDFM_MAIN_FILTER_MASK    ( 1 )
#define SDFM_MAIN_FILTER_SHIFT          ( 0 )
 
#define SDFM_MAIN_INTERRUPT_MASK     ( 1 )
#define SDFM_MAIN_INTERRUPT_SHIFT           ( 1 )
 
#define SDFM_RECFG_REINIT               ( SDFM_RECFG_BF_RECFG_REINIT_MASK )
 
#define SDFM_RECFG_CLK                  ( SDFM_RECFG_BF_RECFG_CLK_MASK )
 
#define SDFM_RECFG_OSR                  ( SDFM_RECFG_BF_RECFG_OSR_MASK )
 
#define SDFM_RECFG_TRIG_SAMP_TIME       ( SDFM_RECFG_BF_RECFG_TRIG_SAMPLE_TIME_MASK )
 
#define SDFM_RECFG_TRIG_SAMP_CNT        ( SDFM_RECFG_BF_RECFG_TRIG_SAMPLE_CNT_MASK )
 
#define SDFM_RECFG_CH_EN                ( 1<<6 )
 
#define SDFM_RECFG_FD                   ( SDFM_RECFG_BF_RECFG_FD_MASK )
 
#define SDFM_RECFG_TRIG_OUT_SAMP_BUF    ( SDFM_RECFG_BF_RECFG_TRIG_OUT_SAMP_BUF_MASK )
 
#define IEP_DEFAULT_INC                 0x1
 
 
/* SDFM output buffer size in 32-bit words */
 
 
#define ICSSG_SD_SAMP_CH_BUF_SZ  ( 128 )
#define NUM_CH_SUPPORTED        ( 3 )
 
/* ========================================================================== */
/*                         Structures                                         */
/* ========================================================================== */
 
typedef struct SDFM_CfgSdClk_s
{
    volatile uint8_t  sd_prd_clocks;
    volatile uint8_t  sd_clk_inv;
} SDFM_CfgSdClk;
 
typedef struct SDFM_CfgTrigger_s
{
    volatile uint16_t    en_double_nc_sampling;
    volatile uint32_t first_samp_trig_time;
    volatile uint32_t second_samp_trig_time;
    volatile uint32_t nc_prd_iep_cnt;
} SDFM_CfgTrigger;
 
typedef struct SDFM_CfgIep_s
{
    volatile uint8_t iep_inc_value;
 
    volatile  uint32_t  cnt_epwm_prd;
 
}SDFM_CfgIep;
 
 
typedef struct SDFM_GpioParams_s{
    volatile uint32_t write_val;
    volatile uint32_t set_val_addr;
    volatile uint32_t clr_val_addr;
} SDFM_GpioParams;
 
typedef struct SDFM_ChCtrl_s
{
    volatile uint32_t    sdfm_ch_id;
    volatile uint16_t    enable_comparator;
    volatile uint16_t    output_data_format;
    volatile uint16_t    reserved1;
    volatile uint16_t    reserved2;
 
} SDFM_ChCtrl;
 
typedef struct SDFM_ClkSourceParms_s
{
    volatile uint32_t clk_source;
    volatile uint8_t  clk_inv;
}SDFM_ClkSourceParms;
 
typedef struct SDFM_ThresholdParms_s
{
    volatile uint32_t    high_threshold;
    volatile uint32_t    low_threshold;
    volatile uint32_t    reserved3;
}SDFM_ThresholdParms;
 
typedef struct SDFM_Cfg_s
{
    volatile uint8_t   ch_id;
    volatile uint8_t    filter_type;
    volatile uint8_t    osr;
    SDFM_ThresholdParms  sdfm_threshold_parms;
    volatile uint32_t    reserved1;
    volatile uint8_t    reserved2;
    SDFM_ClkSourceParms  sdfm_clk_parms;
    SDFM_GpioParams        sdfm_gpio_params[3];
} SDFM_Cfg;
 
typedef struct SDFM_Ctrl_s
{
    volatile uint8_t sdfm_en;
    volatile uint8_t  sdfm_en_ack;
    volatile uint8_t  sdfm_pru_id;
} SDFM_Ctrl;
 
typedef struct SDFM_Interface_s{
    SDFM_Ctrl       sdfm_ctrl;
    SDFM_CfgIep    sdfm_cfg_iep_ptr;
    SDFM_CfgSdClk     sd_clk;
    SDFM_ChCtrl    sdfm_ch_ctrl;
    SDFM_Cfg        sdfm_cfg_ptr[NUM_CH_SUPPORTED];
    /*<sdfm time sampling interface pointer */
    SDFM_CfgTrigger    sdfm_cfg_trigger;
    volatile uint32_t   curr_out_samp_buf[NUM_CH_SUPPORTED];
}SDFM_Interface;
 
typedef struct SDFM_s {
    uint8_t pru_id;
    uint32_t sdfm_clock;
    uint32_t iep_clock;
    uint8_t  iep_inc;
    SDFM_Interface * p_sdfm_interface;
} SDFM;
 
 
#include "sdfm_api.h"
 
#ifdef __cplusplus
}
#endif
 
#endif