This is just a quick hack, that could be expanded. What do you think?
Signed-off-by: Stefan Tauner <[email protected]>
---
dummyflasher.c | 34 +++++++++++++++++++++++++++++++---
1 files changed, 31 insertions(+), 3 deletions(-)
diff --git a/dummyflasher.c b/dummyflasher.c
index 99f81f5..4ccfd9c 100644
--- a/dummyflasher.c
+++ b/dummyflasher.c
@@ -55,6 +55,7 @@ static unsigned int emu_jedec_be_52_size = 0;
static unsigned int emu_jedec_be_d8_size = 0;
static unsigned int emu_jedec_ce_60_size = 0;
static unsigned int emu_jedec_ce_c7_size = 0;
+static uint8_t emu_status = 0;
#endif
#endif
@@ -126,6 +127,9 @@ int dummy_init(void)
{
char *bustext = NULL;
char *tmp = NULL;
+#if EMULATE_SPI_CHIP
+ char *status = NULL;
+#endif
#if EMULATE_CHIP
struct stat image_stat;
#endif
@@ -178,6 +182,14 @@ int dummy_init(void)
goto dummy_init_out;
}
#if EMULATE_SPI_CHIP
+ status = extract_programmer_param("status");
+ if (status) {
+ emu_status = atoi(status);
+ msg_pdbg("Initial status register is set to 0x%02x.\n",
+ emu_status);
+ free(status);
+ }
+
if (!strcmp(tmp, "M25P10.RES")) {
emu_chip = EMULATE_ST_M25P10_RES;
emu_chip_size = 128 * 1024;
@@ -385,10 +397,26 @@ static int emulate_spi_chip_response(unsigned int
writecnt,
if (readcnt > 2)
readarr[2] = 0x4a;
break;
- case JEDEC_RDSR:
- memset(readarr, 0, readcnt);
+ case JEDEC_RDSR: {
+ uint8_t tmp_status = emu_status;
if (aai_active)
- memset(readarr, 1 << 6, readcnt);
+ tmp_status |= 1 << 6;
+ memset(readarr, tmp_status, readcnt);
+ break;
+ }
+ case JEDEC_WREN:
+ emu_status |= (1 << 1);
+ break;
+ case JEDEC_WRSR:
+ if (!(emu_status & (1 << 1))) {
+ msg_perr("WRSR attempted, but WEL is 0!\n");
+ return 1;
+ }
+ if (aai_active) {
+ msg_perr("WRSR attempted during AAI sequence!\n");
+ return 1;
+ }
+ emu_status = writearr[1] & 0xFC; /* resets WEL and WIP */
break;
case JEDEC_READ:
offs = writearr[1] << 16 | writearr[2] << 8 | writearr[3];
--
1.7.1
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