/*
* Copyright (c) 2018 naehrwert
* Copyright (c) 2018-2022 CTCaer
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see .
*/
#ifndef _SDMMC_DRIVER_H_
#define _SDMMC_DRIVER_H_
#include
#include
/*! SDMMC controller IDs. */
#define SDMMC_1 0 // Version 4.00.
#define SDMMC_2 1 // Version 5.1.
#define SDMMC_3 2 // Version 4.00.
#define SDMMC_4 3 // Version 5.1.
/*! SDMMC power types. */
#define SDMMC_POWER_OFF 0
#define SDMMC_POWER_1_8 1
#define SDMMC_POWER_3_3 2
/*! SDMMC bus widths. */
#define SDMMC_BUS_WIDTH_1 0
#define SDMMC_BUS_WIDTH_4 1
#define SDMMC_BUS_WIDTH_8 2
/*! SDMMC response types. */
#define SDMMC_RSP_TYPE_0 0
#define SDMMC_RSP_TYPE_1 1
#define SDMMC_RSP_TYPE_2 2
#define SDMMC_RSP_TYPE_3 3
#define SDMMC_RSP_TYPE_4 4
#define SDMMC_RSP_TYPE_5 5
/*! SDMMC mask interrupt status. */
#define SDMMC_MASKINT_MASKED 0
#define SDMMC_MASKINT_NOERROR 1
#define SDMMC_MASKINT_ERROR 2
/*! SDMMC present state. */
#define SDHCI_CMD_INHIBIT BIT(0)
#define SDHCI_DATA_INHIBIT BIT(1)
#define SDHCI_DAT_LINE_ACTIVE BIT(2)
#define SDHCI_RETUNING_REQUEST BIT(3)
#define SDHCI_EMMC_LINE_LVL_MASK 0xF0
#define SDHCI_DATA_4_LVL BIT(4) // eMMC only.
#define SDHCI_DATA_5_LVL BIT(5) // eMMC only.
#define SDHCI_DATA_6_LVL BIT(6) // eMMC only.
#define SDHCI_DATA_7_LVL BIT(7) // eMMC only.
#define SDHCI_DOING_WRITE BIT(8)
#define SDHCI_DOING_READ BIT(9) // SD only.
#define SDHCI_SPACE_AVAILABLE BIT(10)
#define SDHCI_DATA_AVAILABLE BIT(11)
#define SDHCI_CARD_PRESENT BIT(16)
#define SDHCI_CD_STABLE BIT(17)
#define SDHCI_CD_LVL BIT(18)
#define SDHCI_WRITE_PROTECT BIT(19)
#define SDHCI_DATA_LVL_MASK 0xF00000
#define SDHCI_DATA_0_LVL BIT(20)
#define SDHCI_DATA_1_LVL BIT(21)
#define SDHCI_DATA_2_LVL BIT(22)
#define SDHCI_DATA_3_LVL BIT(23)
#define SDHCI_CMD_LVL BIT(24)
#define SDHCI_CMD_NOT_ISSUED BIT(27)
/*! SDMMC transfer mode. */
#define SDHCI_TRNS_DMA BIT(0)
#define SDHCI_TRNS_BLK_CNT_EN BIT(1)
#define SDHCI_TRNS_AUTO_CMD12 BIT(2)
#define SDHCI_TRNS_AUTO_CMD23 BIT(3)
#define SDHCI_TRNS_WRITE 0x00 // Bit4.
#define SDHCI_TRNS_READ BIT(4)
#define SDHCI_TRNS_MULTI BIT(5)
/*! SDMMC command. */
#define SDHCI_CMD_RESP_MASK 0x3
#define SDHCI_CMD_RESP_NO_RESP 0x0
#define SDHCI_CMD_RESP_LEN136 0x1
#define SDHCI_CMD_RESP_LEN48 0x2
#define SDHCI_CMD_RESP_LEN48_BUSY 0x3
#define SDHCI_CMD_CRC BIT(3)
#define SDHCI_CMD_INDEX BIT(4)
#define SDHCI_CMD_DATA BIT(5)
#define SDHCI_CMD_ABORTCMD 0xC0
/*! SDMMC host control. */
#define SDHCI_CTRL_LED BIT(0)
#define SDHCI_CTRL_4BITBUS BIT(1) // SD only.
#define SDHCI_CTRL_HISPD BIT(2) // SD only.
#define SDHCI_CTRL_DMA_MASK 0x18
#define SDHCI_CTRL_SDMA 0x00
#define SDHCI_CTRL_ADMA1 0x08
#define SDHCI_CTRL_ADMA32 0x10
#define SDHCI_CTRL_ADMA64 0x18
#define SDHCI_CTRL_8BITBUS BIT(5) // eMMC only (or UHS-II).
#define SDHCI_CTRL_CDTEST_INS BIT(6)
#define SDHCI_CTRL_CDTEST_EN BIT(7)
/*! SDMMC host control 2. */
#define SDHCI_CTRL_UHS_MASK 0x7
#define SDHCI_CTRL_VDD_180 BIT(3)
#define SDHCI_CTRL_DRV_TYPE_B (0U << 4)
#define SDHCI_CTRL_DRV_TYPE_A (1U << 4)
#define SDHCI_CTRL_DRV_TYPE_C (2U << 4)
#define SDHCI_CTRL_DRV_TYPE_D (3U << 4)
#define SDHCI_CTRL_EXEC_TUNING BIT(6)
#define SDHCI_CTRL_TUNED_CLK BIT(7)
#define SDHCI_HOST_VERSION_4_EN BIT(12)
#define SDHCI_ADDRESSING_64BIT_EN BIT(13)
#define SDHCI_CTRL_PRESET_VAL_EN BIT(15)
/*! SDMMC power control. */
#define SDHCI_POWER_ON BIT(0)
#define SDHCI_POWER_180 0x0A
#define SDHCI_POWER_300 0x0C
#define SDHCI_POWER_330 0x0E
#define SDHCI_POWER_MASK 0xF1 // UHS-II only.
// /*! SDMMC max current. */
// #define SDHCI_MAX_CURRENT_330_MASK 0xFF
// #define SDHCI_MAX_CURRENT_180_MASK 0xFF0000
// #define SDHCI_MAX_CURRENT_MULTIPLIER 4
/*! SDMMC clock control. */
#define SDHCI_CLOCK_INT_EN BIT(0)
#define SDHCI_CLOCK_INT_STABLE BIT(1)
#define SDHCI_CLOCK_CARD_EN BIT(2)
#define SDHCI_PROG_CLOCK_MODE BIT(5)
#define SDHCI_DIVIDER_HI_SHIFT 6
#define SDHCI_DIV_HI_MASK (3U << SDHCI_DIVIDER_HI_SHIFT)
#define SDHCI_DIVIDER_SHIFT 8
#define SDHCI_DIV_MASK (0xFFU << SDHCI_DIVIDER_SHIFT)
/*! SDMMC software reset. */
#define SDHCI_RESET_ALL BIT(0)
#define SDHCI_RESET_CMD BIT(1)
#define SDHCI_RESET_DATA BIT(2)
/*! SDMMC interrupt status and control. */
#define SDHCI_INT_RESPONSE BIT(0)
#define SDHCI_INT_DATA_END BIT(1)
#define SDHCI_INT_BLK_GAP BIT(2)
#define SDHCI_INT_DMA_END BIT(3)
#define SDHCI_INT_SPACE_AVAIL BIT(4)
#define SDHCI_INT_DATA_AVAIL BIT(5)
#define SDHCI_INT_CARD_INSERT BIT(6)
#define SDHCI_INT_CARD_REMOVE BIT(7)
#define SDHCI_INT_CARD_INT BIT(8)
#define SDHCI_INT_RETUNE BIT(12)
#define SDHCI_INT_CQE BIT(14)
#define SDHCI_INT_ERROR BIT(15)
/*! SDMMC error interrupt status and control. */
#define SDHCI_ERR_INT_TIMEOUT BIT(0)
#define SDHCI_ERR_INT_CRC BIT(1)
#define SDHCI_ERR_INT_END_BIT BIT(2)
#define SDHCI_ERR_INT_INDEX BIT(3)
#define SDHCI_ERR_INT_DATA_TIMEOUT BIT(4)
#define SDHCI_ERR_INT_DATA_CRC BIT(5)
#define SDHCI_ERR_INT_DATA_END_BIT BIT(6)
#define SDHCI_ERR_INT_BUS_POWER BIT(7)
#define SDHCI_ERR_INT_AUTO_CMD_ERR BIT(8)
#define SDHCI_ERR_INT_ADMA_ERROR BIT(9)
#define SDHCI_ERR_INT_TUNE_ERROR BIT(10)
#define SDHCI_ERR_INT_RSP_ERROR BIT(11)
#define SDHCI_ERR_INT_ALL_EXCEPT_ADMA_BUSPWR \
(SDHCI_ERR_INT_AUTO_CMD_ERR | SDHCI_ERR_INT_DATA_END_BIT | \
SDHCI_ERR_INT_DATA_CRC | SDHCI_ERR_INT_DATA_TIMEOUT | \
SDHCI_ERR_INT_INDEX | SDHCI_ERR_INT_END_BIT | \
SDHCI_ERR_INT_CRC | SDHCI_ERR_INT_TIMEOUT)
/*! SD bus speeds. */
#define UHS_SDR12_BUS_SPEED 0
#define HIGH_SPEED_BUS_SPEED 1
#define UHS_SDR25_BUS_SPEED 1
#define UHS_SDR50_BUS_SPEED 2
#define UHS_SDR104_BUS_SPEED 3
#define UHS_DDR50_BUS_SPEED 4
#define HS400_BUS_SPEED 5
/*! SDMMC timmings. */
#define SDHCI_TIMING_MMC_ID 0
#define SDHCI_TIMING_MMC_LS26 1
#define SDHCI_TIMING_MMC_HS52 2
#define SDHCI_TIMING_MMC_HS200 3
#define SDHCI_TIMING_MMC_HS400 4
#define SDHCI_TIMING_SD_ID 5
#define SDHCI_TIMING_SD_DS12 6
#define SDHCI_TIMING_SD_HS25 7
#define SDHCI_TIMING_UHS_SDR12 8
#define SDHCI_TIMING_UHS_SDR25 9
#define SDHCI_TIMING_UHS_SDR50 10
#define SDHCI_TIMING_UHS_SDR104 11
#define SDHCI_TIMING_UHS_DDR50 12
// SDR104 with a 163.2MHz -> 81.6MHz clock.
#define SDHCI_TIMING_UHS_SDR82 13 // GC FPGA. Obsolete and Repurposed. MMC_HS50 -> SDR82.
#define SDHCI_TIMING_MMC_DDR100 14 // GC ASIC.
#define SDHCI_CAN_64BIT BIT(28)
/*! SDMMC Low power features. */
#define SDMMC_POWER_SAVE_DISABLE 0
#define SDMMC_POWER_SAVE_ENABLE 1
/*! Helper for SWITCH command argument. */
#define SDMMC_SWITCH(mode, index, value) (((mode) << 24) | ((index) << 16) | ((value) << 8))
/*! SDMMC controller context. */
typedef struct _sdmmc_t
{
t210_sdmmc_t *regs;
u32 id;
u32 divisor;
u32 clock_stopped;
int powersave_enabled;
int manual_cal;
int card_clock_enabled;
int venclkctl_set;
u32 venclkctl_tap;
u32 expected_rsp_type;
u32 dma_addr_next;
u32 rsp[4];
u32 rsp3;
int t210b01;
} sdmmc_t;
/*! SDMMC command. */
typedef struct _sdmmc_cmd_t
{
u16 cmd;
u32 arg;
u32 rsp_type;
u32 check_busy;
} sdmmc_cmd_t;
/*! SDMMC request. */
typedef struct _sdmmc_req_t
{
void *buf;
u32 blksize;
u32 num_sectors;
int is_write;
int is_multi_block;
int is_auto_stop_trn;
} sdmmc_req_t;
int sdmmc_get_io_power(sdmmc_t *sdmmc);
u32 sdmmc_get_bus_width(sdmmc_t *sdmmc);
void sdmmc_set_bus_width(sdmmc_t *sdmmc, u32 bus_width);
void sdmmc_save_tap_value(sdmmc_t *sdmmc);
int sdmmc_setup_clock(sdmmc_t *sdmmc, u32 type);
void sdmmc_card_clock_powersave(sdmmc_t *sdmmc, int powersave_enable);
int sdmmc_get_rsp(sdmmc_t *sdmmc, u32 *rsp, u32 size, u32 type);
int sdmmc_tuning_execute(sdmmc_t *sdmmc, u32 type, u32 cmd);
int sdmmc_stop_transmission(sdmmc_t *sdmmc, u32 *rsp);
bool sdmmc_get_sd_inserted();
int sdmmc_init(sdmmc_t *sdmmc, u32 id, u32 power, u32 bus_width, u32 type);
void sdmmc_end(sdmmc_t *sdmmc);
void sdmmc_init_cmd(sdmmc_cmd_t *cmdbuf, u16 cmd, u32 arg, u32 rsp_type, u32 check_busy);
int sdmmc_execute_cmd(sdmmc_t *sdmmc, sdmmc_cmd_t *cmd, sdmmc_req_t *req, u32 *blkcnt_out);
int sdmmc_enable_low_voltage(sdmmc_t *sdmmc);
#endif