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Refine reprogram_opcode_on_the_fly to indicate wrong readcnt/writecnt combinations

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Corresponding to flashrom svn r1531.

Signed-off-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
This commit is contained in:
Stefan Tauner 2012-05-06 15:11:26 +00:00
parent e5449392a1
commit dc704edad4
1 changed files with 13 additions and 12 deletions
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25
ichspi.c
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@ -405,18 +405,16 @@ static int reprogram_opcode_on_the_fly(uint8_t opcode, unsigned int writecnt, un
spi_type = SPI_OPCODE_TYPE_READ_NO_ADDRESS;
else if (writecnt == 4) // and readcnt is > 0
spi_type = SPI_OPCODE_TYPE_READ_WITH_ADDRESS;
// else we have an invalid case, will be handled below
else // we have an invalid case
return SPI_INVALID_LENGTH;
}
if (spi_type <= 3) {
int oppos=2; // use original JEDEC_BE_D8 offset
curopcodes->opcode[oppos].opcode = opcode;
curopcodes->opcode[oppos].spi_type = spi_type;
program_opcodes(curopcodes, 0);
oppos = find_opcode(curopcodes, opcode);
msg_pdbg ("on-the-fly OPCODE (0x%02X) re-programmed, op-pos=%d\n", opcode, oppos);
return oppos;
}
return -1;
int oppos = 2; // use original JEDEC_BE_D8 offset
curopcodes->opcode[oppos].opcode = opcode;
curopcodes->opcode[oppos].spi_type = spi_type;
program_opcodes(curopcodes, 0);
oppos = find_opcode(curopcodes, opcode);
msg_pdbg ("on-the-fly OPCODE (0x%02X) re-programmed, op-pos=%d\n", opcode, oppos);
return oppos;
}
static int find_opcode(OPCODES *op, uint8_t opcode)
@ -1001,7 +999,10 @@ static int ich_spi_send_command(struct flashctx *flash, unsigned int writecnt,
if (opcode_index == -1) {
if (!ichspi_lock)
opcode_index = reprogram_opcode_on_the_fly(cmd, writecnt, readcnt);
if (opcode_index == -1) {
if (opcode_index == SPI_INVALID_LENGTH) {
msg_pdbg("OPCODE 0x%02x has unsupported length, will not execute.\n", cmd);
return SPI_INVALID_LENGTH;
} else if (opcode_index == -1) {
msg_pdbg("Invalid OPCODE 0x%02x, will not execute.\n",
cmd);
return SPI_INVALID_OPCODE;