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mitsu9550: Add serial number query.

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This commit is contained in:
Solomon Peachy 2014-12-14 19:09:32 -05:00
parent 09f350ea66
commit df5447becd
1 changed files with 52 additions and 3 deletions
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55
backend_mitsu9550.c
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@ -94,8 +94,8 @@ struct mitsu9550_plane {
uint16_t rows; /* BE */
} __attribute__((packed));
struct mitsu9550_footer {
uint8_t cmd[4]; /* 1b 50 46 00 */
struct mitsu9550_cmd {
uint8_t cmd[4];
} __attribute__((packed));
/* Printer data structures */
@ -188,7 +188,7 @@ static int mitsu9550_read_parse(void *vctx, int data_fd) {
remain = ctx->rows * ctx->cols + sizeof(struct mitsu9550_plane);
remain *= 3;
remain += sizeof(struct mitsu9550_hdr2) + sizeof(struct mitsu9550_hdr3)+ sizeof(struct mitsu9550_hdr4) + sizeof(struct mitsu9550_footer);
remain += sizeof(struct mitsu9550_hdr2) + sizeof(struct mitsu9550_hdr3)+ sizeof(struct mitsu9550_hdr4) + sizeof(struct mitsu9550_cmd);
/* Allocate buffer */
ctx->databuf = malloc(remain + sizeof(struct mitsu9550_hdr1));
@ -327,6 +327,54 @@ static int mitsu9550_query_status(struct mitsu9550_ctx *ctx)
return ret;
}
static int mitsu9550_query_serno(struct libusb_device_handle *dev, uint8_t endp_up, uint8_t endp_down, char *buf, int buf_len)
{
struct mitsu9550_cmd cmd;
uint8_t rdbuf[READBACK_LEN];
int ret, num, i;
cmd.cmd[0] = 0x1b;
cmd.cmd[1] = 0x72;
cmd.cmd[2] = 0x6e;
cmd.cmd[3] = 0x00;
if ((ret = send_data(dev, endp_down,
(uint8_t*) &cmd, sizeof(cmd))))
return (ret < 0) ? ret : -99;
ret = read_data(dev, endp_up,
rdbuf, READBACK_LEN, &num);
if (ret < 0)
return ret;
if ((unsigned int)num < sizeof(cmd)) /* Short read */
return -1;
if (rdbuf[0] != 0xe4 ||
rdbuf[1] != 0x72 ||
rdbuf[2] != 0x6e ||
rdbuf[3] != 0x00) /* Bad response */
return -2;
/* If response is truncated, handle it */
if ((unsigned int) num < sizeof(cmd) + rdbuf[4] + 1)
rdbuf[4] = num - sizeof(cmd) - 1;
/* model and serial number are encoded as 16-bit unicode,
little endian */
for (i = 5 ; i < rdbuf[4] ; i+= 2) {
if (rdbuf[i] != 0x20)
continue;
if (--buf_len)
break;
*buf++ = rdbuf[i];
}
*buf = 0; /* Null-terminate the returned string */
return ret;
}
static void mitsu9550_cmdline(void)
{
DEBUG("\t\t[ -s ] # Query status\n");
@ -370,6 +418,7 @@ struct dyesub_backend mitsu9550_backend = {
.teardown = mitsu9550_teardown,
.read_parse = mitsu9550_read_parse,
.main_loop = mitsu9550_main_loop,
.query_serno = mitsu9550_query_serno,
.devices = {
{ USB_VID_MITSU, USB_PID_MITSU_9550DZ, P_MITSU_9550, ""},
{ USB_VID_MITSU, USB_PID_MITSU_9550D, P_MITSU_9550, ""},