diff options
Diffstat (limited to 'dediprog.c')
| -rw-r--r-- | dediprog.c | 26 |
1 files changed, 15 insertions, 11 deletions
diff --git a/dediprog.c b/dediprog.c index 3020c0068..b5037a174 100644 --- a/dediprog.c +++ b/dediprog.c @@ -145,8 +145,9 @@ int dediprog_set_spi_speed(uint16_t speed) int dediprog_spi_read(struct flashchip *flash, uint8_t *buf, int start, int len) { - /* Maximum read length is 4 bytes for now. */ - return spi_read_chunked(flash, buf, start, len, 4); + msg_pspew("%s, start=0x%x, len=0x%x\n", __func__, start, len); + /* Chosen read length is 16 bytes for now. */ + return spi_read_chunked(flash, buf, start, len, 16); } int dediprog_spi_send_command(unsigned int writecnt, unsigned int readcnt, @@ -154,19 +155,22 @@ int dediprog_spi_send_command(unsigned int writecnt, unsigned int readcnt, { int ret; + msg_pspew("%s, writecnt=%i, readcnt=%i\n", __func__, writecnt, readcnt); /* Paranoid, but I don't want to be blamed if anything explodes. */ - if ((writecnt != 1) && (writecnt != 4)) + if (writecnt > 5) { msg_perr("Untested writecnt=%i, aborting.\n", writecnt); - if (readcnt > 4) + return 1; + } + /* 16 byte reads should work. */ + if (readcnt > 16) { msg_perr("Untested readcnt=%i, aborting.\n", readcnt); - if ((readcnt == 0) && (writecnt != 1)) - msg_perr("Untested writecnt=%i, readcnt=%i combination, " - "aborting.\n", writecnt, readcnt); + return 1; + } ret = usb_control_msg(dediprog_handle, 0x42, 0x1, 0xff, readcnt ? 0x1 : 0x0, (char *)writearr, writecnt, DEFAULT_TIMEOUT); if (ret != writecnt) { - msg_perr("Command Send SPI failed, ret=%i, expected %i!\n", - ret, writecnt); + msg_perr("Send SPI failed, expected %i, got %i %s!\n", + writecnt, ret, usb_strerror()); return 1; } if (!readcnt) @@ -174,8 +178,8 @@ int dediprog_spi_send_command(unsigned int writecnt, unsigned int readcnt, memset(readarr, 0, readcnt); ret = usb_control_msg(dediprog_handle, 0xc2, 0x01, 0xbb8, 0x0000, (char *)readarr, readcnt, DEFAULT_TIMEOUT); if (ret != readcnt) { - msg_perr("Command Receive SPI failed, ret=%i, expected %i!\n", - ret, readcnt); + msg_perr("Receive SPI failed, expected %i, got %i %s!\n", + readcnt, ret, usb_strerror()); return 1; } return 0; |