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| author | Philippe Mathieu-Daudé <f4bug@amsat.org> | 2020-09-18 19:05:20 +0200 |
|---|---|---|
| committer | Philippe Mathieu-Daudé <f4bug@amsat.org> | 2020-10-21 13:19:02 +0200 |
| commit | 872b8fde6c642e1da234bcfb7bb3fb9a8d746ff3 (patch) | |
| tree | 295e0330b38878a4066777a7865f03e11c8efd70 /hw/sd/sd.c | |
| parent | aafe6c583696fa40677bcd2285da5e7a5210b3eb (diff) | |
| download | focaccia-qemu-872b8fde6c642e1da234bcfb7bb3fb9a8d746ff3.tar.gz focaccia-qemu-872b8fde6c642e1da234bcfb7bb3fb9a8d746ff3.zip | |
hw/sd/sdcard: Introduce the INVALID_ADDRESS definition
'0' is used as a value to indicate an invalid (or unset) address. Use a definition instead of a magic value. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Tested-by: Alexander Bulekov <alxndr@bu.edu> Message-Id: <20201015063824.212980-3-f4bug@amsat.org>
Diffstat (limited to 'hw/sd/sd.c')
| -rw-r--r-- | hw/sd/sd.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/hw/sd/sd.c b/hw/sd/sd.c index 2606b969e3..30ae435d66 100644 --- a/hw/sd/sd.c +++ b/hw/sd/sd.c @@ -53,6 +53,8 @@ #define SDSC_MAX_CAPACITY (2 * GiB) +#define INVALID_ADDRESS 0 + typedef enum { sd_r0 = 0, /* no response */ sd_r1, /* normal response command */ @@ -575,8 +577,8 @@ static void sd_reset(DeviceState *dev) sd->wpgrps_size = sect; sd->wp_groups = bitmap_new(sd->wpgrps_size); memset(sd->function_group, 0, sizeof(sd->function_group)); - sd->erase_start = 0; - sd->erase_end = 0; + sd->erase_start = INVALID_ADDRESS; + sd->erase_end = INVALID_ADDRESS; sd->size = size; sd->blk_len = 0x200; sd->pwd_len = 0; @@ -750,7 +752,8 @@ static void sd_erase(SDState *sd) uint64_t erase_end = sd->erase_end; trace_sdcard_erase(sd->erase_start, sd->erase_end); - if (!sd->erase_start || !sd->erase_end) { + if (sd->erase_start == INVALID_ADDRESS + || sd->erase_end == INVALID_ADDRESS) { sd->card_status |= ERASE_SEQ_ERROR; return; } @@ -763,8 +766,8 @@ static void sd_erase(SDState *sd) erase_start = sd_addr_to_wpnum(erase_start); erase_end = sd_addr_to_wpnum(erase_end); - sd->erase_start = 0; - sd->erase_end = 0; + sd->erase_start = INVALID_ADDRESS; + sd->erase_end = INVALID_ADDRESS; sd->csd[14] |= 0x40; for (i = erase_start; i <= erase_end; i++) { |