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spi_sdcard.cpp: implement SEND_CSD (SD_TYPE_V2) (#12078)

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holub 2024-02-28 19:02:31 -05:00 committed by GitHub
parent 63864c41dd
commit 1e0dfbe8fd
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1 changed files with 39 additions and 4 deletions
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43
src/devices/machine/spi_sdcard.cpp
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@ -34,8 +34,8 @@
#define LOG_COMMAND (1U << 1)
#define LOG_SPI (1U << 2)
//#define VERBOSE (LOG_COMMAND)
#define LOG_OUTPUT_FUNC osd_printf_info
//#define VERBOSE (LOG_GENERAL | LOG_COMMAND)
//#define LOG_OUTPUT_FUNC osd_printf_info
#include "logmacro.h"
@ -259,8 +259,43 @@ void spi_sdcard_device::do_command()
break;
case 9: // CMD9 - SEND_CSD
m_data[0] = 0x00; // TODO
send_data(1, SD_STATE_STBY);
m_data[0] = 0x00;
m_data[1] = 0xff;
m_data[2] = 0xfe;
//if (m_type == SD_TYPE_V2) // CSD Version 1.0
{
u8 block_len = 9;
for (auto i = m_blksize >> 10; i; i >>= 1, ++block_len);
m_data[3] = 0x00; // 127: CSD_STRUCTURE:2 (00b) 0:6
m_data[4] = 0x0e; // 119: TAAC:8
m_data[5] = 0x00; // 111: NSAC:8
m_data[6] = 0x32; // 103: TRAN_SPEED:8 (32h or 5Ah)
m_data[7] = 0x5b; // 95: CCC:12 (01x110110101b)
m_data[8] = 0x50; // .. READ_BL_LN:4
m_data[8] |= block_len;
m_data[9] = 0x83; // 79: READ_BL_PARTIAL:1 (1b) WRITE_BLK_MISALIGN:1 READ_BLK_MISALIGN:1 DSR_IMP:1 0:2 C_SIZE:12
m_data[10] = 0xff; // ..
m_data[11] = 0xed; // .. VDD_R_CURR_MIN:3 VDD_R_CURR_MAX:3
m_data[12] = 0xb7; // 55: VDD_W_CURR_MIN:3 VDD_W_CURR_MAX:3 C_SIZE_MUL:3
m_data[13] = 0xbf; // .. ERASE_BLK_EN:1 SECTOR_SIZE:7
m_data[14] = 0xbf; // .. WP_GRP_SIZE:7
m_data[15] = 0x04; // 31: WP_GRP_ENABLE:1 0:2 R2W_FACTOR:3 WRITE_BL_LEN:4
m_data[15] |= (block_len >> 2);
m_data[16] = 0x00; /// .. WRITE_BL_PARTIAL:1 0:5
m_data[16] |= (block_len & 3) << 6;
m_data[17] = 0x00; // 15: FILE_FORMAT_GRP:1 COPY:1 PERM_WRITE_PROTECT:1 TMP_WRITE_PROTECT:1 FILE_FORMAT:2 WP_UPC:1 0:1
m_data[18] = 0x01; // 7: CRC7 1:1
}
/*
else // SD_TYPE_HC: CSD Version 2.0
{
m_data[3] = 0x40;
}
*/
send_data(3 + 16, SD_STATE_STBY);
break;
case 10: // CMD10 - SEND_CID