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mmc-utils: ffu: Add ffu multi-command set handler

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In preparation of sending the fw image in several chunks.
While at it, make use of set_single_cmd() to preapare CMD23 and CMD25.

Signed-off-by: Avri Altman <avri.altman@wdc.com>
Link: https://lore.kernel.org/r/20230625103814.105-5-avri.altman@wdc.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Avri Altman 2023-06-25 13:38:12 +03:00 committed by Ulf Hansson
parent a1b594ca73
commit 5ba644bf99
1 changed files with 21 additions and 22 deletions
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43
mmc_cmds.c
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@ -2803,6 +2803,26 @@ out:
return ret;
}
static void set_ffu_single_cmd(struct mmc_ioc_multi_cmd *multi_cmd,
__u8 *ext_csd, unsigned int bytes, __u8 *buf,
off_t offset)
{
__u32 arg = htole32(*((__u32 *)&ext_csd[EXT_CSD_FFU_ARG_0]));
/* send block count */
set_single_cmd(&multi_cmd->cmds[1], MMC_SET_BLOCK_COUNT, 0, 0,
bytes / 512);
multi_cmd->cmds[1].flags = MMC_RSP_SPI_R1 | MMC_RSP_R1 | MMC_CMD_AC;
/*
* send image chunk: blksz and blocks essentially do not matter, as
* long as the product is fw_size, but some hosts don't handle larger
* blksz well.
*/
set_single_cmd(&multi_cmd->cmds[2], MMC_WRITE_MULTIPLE_BLOCK, 1,
bytes / 512, arg);
mmc_ioc_cmd_set_data(multi_cmd->cmds[2], buf + offset);
}
int do_ffu(int nargs, char **argv)
{
@ -2811,7 +2831,6 @@ int do_ffu(int nargs, char **argv)
unsigned int sect_size;
__u8 ext_csd[512];
__u8 *buf = NULL;
__u32 arg;
off_t fw_size;
char *device;
struct mmc_ioc_multi_cmd *multi_cmd = NULL;
@ -2879,35 +2898,15 @@ int do_ffu(int nargs, char **argv)
goto out;
}
/* set CMD ARG */
arg = htole32(*((__u32 *)&ext_csd[EXT_CSD_FFU_ARG_0]));
/* prepare multi_cmd for FFU based on cmd to be used */
/* prepare multi_cmd to be sent */
multi_cmd->num_of_cmds = 4;
/* put device into ffu mode */
fill_switch_cmd(&multi_cmd->cmds[0], EXT_CSD_MODE_CONFIG,
EXT_CSD_FFU_MODE);
/* send block count */
multi_cmd->cmds[1].opcode = MMC_SET_BLOCK_COUNT;
multi_cmd->cmds[1].arg = fw_size / 512;
multi_cmd->cmds[1].flags = MMC_RSP_SPI_R1 | MMC_RSP_R1 | MMC_CMD_AC;
/* send image chunk */
multi_cmd->cmds[2].opcode = MMC_WRITE_MULTIPLE_BLOCK;
/*
* blksz and blocks essentially do not matter, as long as the product
* is fw_size, but some hosts don't handle larger blksz well.
*/
multi_cmd->cmds[2].blksz = 512;
multi_cmd->cmds[2].blocks = fw_size / 512;
multi_cmd->cmds[2].arg = arg;
multi_cmd->cmds[2].flags = MMC_RSP_SPI_R1 | MMC_RSP_R1 | MMC_CMD_ADTC;
multi_cmd->cmds[2].write_flag = 1;
mmc_ioc_cmd_set_data(multi_cmd->cmds[2], buf);
set_ffu_single_cmd(multi_cmd, ext_csd, fw_size, buf, 0);
/* return device into normal mode */
fill_switch_cmd(&multi_cmd->cmds[3], EXT_CSD_MODE_CONFIG,