canonselphy: Rewrite the error detection code.
Now instead of a dumb offset/flag, we parse the whole response from the printer and holistically figure out what's wrong. On a per-printer type basis. This was needed because the ES40 and CP790 share a single "backend" but have radically different error reporting.
This commit is contained in:
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0eef76d2b3
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3764319eb2
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@ -53,9 +53,131 @@ struct printer_data {
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int16_t paper_codes[256];
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int16_t pgcode_offset; /* Offset into printjob for paper type */
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int16_t paper_code_offset; /* Offset in readback for paper type */
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int16_t error_offset;
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int (*error_detect)(uint8_t *rdbuf);
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};
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static int es1_error_detect(uint8_t *rdbuf)
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{
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if (!rdbuf[1])
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return 0;
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if (rdbuf[9] == 0x80)
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ERROR("No media loaded!\n");
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else if (rdbuf[9] == 0x00)
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ERROR("Cover open!\n");
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else
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ERROR("Unknown error - %02x\n",
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rdbuf[9]);
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return 1;
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}
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static int es2_error_detect(uint8_t *rdbuf)
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{
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if (rdbuf[0] == 0x16 &&
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rdbuf[1] == 0x01) {
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ERROR("Cover open!\n");
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return 1;
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}
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if (rdbuf[0] == 0x02 &&
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rdbuf[4] == 0x05 &&
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rdbuf[5] == 0x05 &&
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rdbuf[6] == 0x02) {
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ERROR("No media loaded!\n");
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return 1;
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}
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return 0;
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}
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static int es3_error_detect(uint8_t *rdbuf)
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{
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if (rdbuf[8] == 0x01) {
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if (rdbuf[10] == 0x0f) {
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ERROR("Communications Error\n");
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} else if (rdbuf[10] == 0x01) {
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ERROR("No media/ribbon loaded!\n");
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} else {
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ERROR("Unknown error - %02x + %02x\n",
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rdbuf[8], rdbuf[10]);
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}
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return 1;
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} else if (rdbuf[8] == 0x03 &&
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rdbuf[10] == 0x02) {
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ERROR("No media!\n");
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return 1;
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} else if (rdbuf[8] == 0x08 &&
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rdbuf[10] == 0x04) {
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ERROR("Cover open!\n");
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return 1;
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}
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if (rdbuf[8] || rdbuf[10]) {
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ERROR("Unknown error - %02x + %02x\n",
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rdbuf[8], rdbuf[10]);
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}
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return 0;
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}
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static int es40_error_detect(uint8_t *rdbuf)
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{
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if (!rdbuf[4] && !rdbuf[5]) {
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/* ES40 */
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if (!rdbuf[3])
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return 0;
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if (rdbuf[3] == 0x01)
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ERROR("Generic communication error\n");
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else if (rdbuf[3] == 0x32)
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ERROR("Cover open or media empty!\n");
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else
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ERROR("Unknown error - %02x\n", rdbuf[3]);
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return 1;
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}
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/* CP790 */
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if (rdbuf[4] == 0x10 && rdbuf[5] == 0xff) {
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ERROR("No ribbon!\n");
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return 1;
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} else if (rdbuf[4] == 0xff && rdbuf[5] == 0x01) {
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ERROR("No media loaded!\n");
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return 1;
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}
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return 0;
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}
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static int cp10_error_detect(uint8_t *rdbuf)
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{
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if (!rdbuf[2])
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return 0;
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if (rdbuf[2] == 0x80)
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ERROR("No ribbon\n");
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else if (rdbuf[2] == 0x01)
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ERROR("No media!\n");
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else
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ERROR("Unknown error - %02x\n", rdbuf[2]);
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return 1;
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}
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static int cpxxx_error_detect(uint8_t *rdbuf)
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{
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if (!rdbuf[2])
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return 0;
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if (rdbuf[2] == 0x01)
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ERROR("Out of paper!\n");
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else if (rdbuf[2] == 0x04)
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ERROR("Ribbon problem!\n");
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else if (rdbuf[2] == 0x08)
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ERROR("Ribbon depleted!\n");
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else
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ERROR("Unknown error - %02x\n", rdbuf[2]);
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return 1;
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}
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static struct printer_data selphy_printers[] = {
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{ .type = P_ES1,
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.model = "SELPHY ES1",
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@ -70,7 +192,7 @@ static struct printer_data selphy_printers[] = {
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// .paper_codes
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.pgcode_offset = 3,
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.paper_code_offset = 6,
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.error_offset = 1,
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.error_detect = es1_error_detect,
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},
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{ .type = P_ES2_20,
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.model = "SELPHY ES2/ES20",
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@ -85,7 +207,7 @@ static struct printer_data selphy_printers[] = {
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// .paper_codes
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.pgcode_offset = 2,
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.paper_code_offset = 4,
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.error_offset = 1, // XXX insufficient
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.error_detect = es2_error_detect,
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},
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{ .type = P_ES3_30,
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.model = "SELPHY ES3/ES30",
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@ -100,7 +222,7 @@ static struct printer_data selphy_printers[] = {
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// .paper_codes
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.pgcode_offset = 2,
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.paper_code_offset = -1,
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.error_offset = 8, // or 10
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.error_detect = es3_error_detect,
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},
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{ .type = P_ES40_CP790,
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.model = "SELPHY ES40/CP790",
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@ -115,7 +237,7 @@ static struct printer_data selphy_printers[] = {
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// .paper_codes
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.pgcode_offset = 2,
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.paper_code_offset = 11,
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.error_offset = 3,
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.error_detect = es40_error_detect,
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},
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{ .type = P_CP_XXX,
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.model = "SELPHY CP Series (!CP-10/CP790)",
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@ -130,7 +252,7 @@ static struct printer_data selphy_printers[] = {
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// .paper_codes
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.pgcode_offset = 3,
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.paper_code_offset = 6,
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.error_offset = 2,
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.error_detect = cpxxx_error_detect,
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},
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{ .type = P_CP10,
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.model = "SELPHY CP-10",
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@ -145,7 +267,7 @@ static struct printer_data selphy_printers[] = {
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// .clear_error
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.pgcode_offset = -1,
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.paper_code_offset = -1,
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.error_offset = 2,
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.error_detect = cp10_error_detect,
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},
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{ .type = -1 },
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};
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@ -215,17 +337,12 @@ enum {
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S_FINISHED,
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};
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static int fancy_memcmp(const uint8_t *buf_a, const int16_t *buf_b, uint len, int16_t papercode_offset, int16_t papercode_val)
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static int fancy_memcmp(const uint8_t *buf_a, const int16_t *buf_b, uint len)
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{
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uint i;
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for (i = 0 ; i < len ; i++) {
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if (papercode_offset != -1 && i == (uint) papercode_offset) {
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if (papercode_val == -1)
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continue;
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else if ((buf_a[i] & 0xf) != (papercode_val & 0xf))
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return INCORRECT_PAPER;
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} else if (buf_b[i] == -1)
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if (buf_b[i] == -1)
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continue;
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else if (buf_a[i] > buf_b[i])
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return 1;
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@ -530,18 +647,25 @@ top:
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fflush(stderr);
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/* Error detection */
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if (ctx->printer->error_offset != -1 &&
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rdbuf[ctx->printer->error_offset]) {
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ERROR("Printer reported error condition %02x; aborting. (Out of ribbon/paper?)\n", rdbuf[ctx->printer->error_offset]);
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if (ctx->printer->error_detect(rdbuf))
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return 4;
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}
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switch(state) {
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case S_IDLE:
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INFO("Waiting for printer idle\n");
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if (!fancy_memcmp(rdbuf, ctx->printer->init_readback, READBACK_LEN, ctx->printer->paper_code_offset, ctx->paper_code)) {
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state = S_PRINTER_READY;
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if (fancy_memcmp(rdbuf, ctx->printer->init_readback, READBACK_LEN))
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break;
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/* Make sure paper is correct */
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if (ctx->printer->paper_code_offset != -1) {
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if ((rdbuf[ctx->printer->paper_code_offset] & 0x0f) !=
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(ctx->paper_code & 0x0f)) {
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ERROR("Incorrect paper loaded, aborting job!\n");
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return 3; /* Hold this job, don't stop queue */
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}
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}
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state = S_PRINTER_READY;
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break;
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case S_PRINTER_READY:
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INFO("Printing started; Sending init sequence\n");
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@ -552,7 +676,7 @@ top:
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state = S_PRINTER_INIT_SENT;
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break;
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case S_PRINTER_INIT_SENT:
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if (!fancy_memcmp(rdbuf, ctx->printer->ready_y_readback, READBACK_LEN, ctx->printer->paper_code_offset, ctx->paper_code)) {
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if (!fancy_memcmp(rdbuf, ctx->printer->ready_y_readback, READBACK_LEN)) {
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state = S_PRINTER_READY_Y;
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}
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break;
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@ -568,7 +692,7 @@ top:
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state = S_PRINTER_Y_SENT;
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break;
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case S_PRINTER_Y_SENT:
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if (!fancy_memcmp(rdbuf, ctx->printer->ready_m_readback, READBACK_LEN, ctx->printer->paper_code_offset, ctx->paper_code)) {
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if (!fancy_memcmp(rdbuf, ctx->printer->ready_m_readback, READBACK_LEN)) {
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if (ctx->bw_mode)
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state = S_PRINTER_DONE;
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else
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@ -584,7 +708,7 @@ top:
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state = S_PRINTER_M_SENT;
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break;
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case S_PRINTER_M_SENT:
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if (!fancy_memcmp(rdbuf, ctx->printer->ready_c_readback, READBACK_LEN, ctx->printer->paper_code_offset, ctx->paper_code)) {
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if (!fancy_memcmp(rdbuf, ctx->printer->ready_c_readback, READBACK_LEN)) {
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state = S_PRINTER_READY_C;
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}
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break;
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@ -597,7 +721,7 @@ top:
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state = S_PRINTER_C_SENT;
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break;
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case S_PRINTER_C_SENT:
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if (!fancy_memcmp(rdbuf, ctx->printer->done_c_readback, READBACK_LEN, ctx->printer->paper_code_offset, ctx->paper_code)) {
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if (!fancy_memcmp(rdbuf, ctx->printer->done_c_readback, READBACK_LEN)) {
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state = S_PRINTER_DONE;
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}
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break;
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@ -666,7 +790,7 @@ top:
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struct dyesub_backend canonselphy_backend = {
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.name = "Canon SELPHY CP/ES",
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.version = "0.68",
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.version = "0.69",
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.multipage_capable = 1,
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.uri_prefix = "canonselphy",
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.init = canonselphy_init,
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@ -834,7 +958,6 @@ struct dyesub_backend canonselphy_backend = {
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00 ff 10 00 ff ff ff ff 00 00 00 00 [ready for footer]
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01 ff 10 00 ff ff ff ff 01 00 0f 00 [communication error]
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00 ff 00 00 ff ff ff ff 00 00 00 00 [cover open, no media]
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00 ff 01 00 ff ff ff ff 01 00 01 00 [error, no media/ink]
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00 ff 01 00 ff ff ff ff 03 00 02 00 [attempt to print with no media]
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00 ff 01 00 ff ff ff ff 08 00 04 00 [attempt to print with cover open]
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