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authorJörg Frings-Fürst <debian@jff-webhosting.net>2014-10-06 14:00:40 +0200
committerJörg Frings-Fürst <debian@jff-webhosting.net>2014-10-06 14:00:40 +0200
commit6e9c41a892ed0e0da326e0278b3221ce3f5713b8 (patch)
tree2e301d871bbeeb44aa57ff9cc070fcf3be484487 /backend/epson2-commands.c
Initial import of sane-backends version 1.0.24-1.2
Diffstat (limited to 'backend/epson2-commands.c')
-rw-r--r--backend/epson2-commands.c1088
1 files changed, 1088 insertions, 0 deletions
diff --git a/backend/epson2-commands.c b/backend/epson2-commands.c
new file mode 100644
index 0000000..a84630b
--- /dev/null
+++ b/backend/epson2-commands.c
@@ -0,0 +1,1088 @@
+/*
+ * ESC/I commands for Epson scanners
+ *
+ * Based on Kazuhiro Sasayama previous
+ * Work on epson.[ch] file from the SANE package.
+ * Please see those files for original copyrights.
+ *
+ * Copyright (C) 2006 Tower Technologies
+ * Author: Alessandro Zummo <a.zummo@towertech.it>
+ *
+ * This file is part of the SANE package.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, version 2.
+ */
+
+#define DEBUG_DECLARE_ONLY
+
+#include "sane/config.h"
+
+#include <byteorder.h>
+#include <math.h>
+#include <sys/types.h>
+
+#include "epson2.h"
+#include "epson2-io.h"
+#include "epson2-commands.h"
+
+
+/* ESC H, set zoom */
+SANE_Status
+esci_set_zoom(Epson_Scanner * s, unsigned char x, unsigned char y)
+{
+ SANE_Status status;
+ unsigned char params[2];
+
+ DBG(8, "%s: x = %d, y = %d\n", __func__, x, y);
+
+ if (!s->hw->cmd->set_zoom) {
+ DBG(1, "%s: not supported\n", __func__);
+ return SANE_STATUS_GOOD;
+ }
+
+ params[0] = ESC;
+ params[1] = s->hw->cmd->set_zoom;
+
+ status = e2_cmd_simple(s, params, 2);
+ if (status != SANE_STATUS_GOOD)
+ return status;
+
+ params[0] = x;
+ params[1] = y;
+
+ return e2_cmd_simple(s, params, 2);
+}
+
+/* ESC R */
+SANE_Status
+esci_set_resolution(Epson_Scanner * s, int x, int y)
+{
+ SANE_Status status;
+ unsigned char params[4];
+
+ DBG(8, "%s: x = %d, y = %d\n", __func__, x, y);
+
+ if (!s->hw->cmd->set_resolution) {
+ DBG(1, "%s: not supported\n", __func__);
+ return SANE_STATUS_GOOD;
+ }
+
+ params[0] = ESC;
+ params[1] = s->hw->cmd->set_resolution;
+
+ status = e2_cmd_simple(s, params, 2);
+ if (status != SANE_STATUS_GOOD)
+ return status;
+
+ params[0] = x;
+ params[1] = x >> 8;
+ params[2] = y;
+ params[3] = y >> 8;
+
+ return e2_cmd_simple(s, params, 4);
+}
+
+/*
+ * Sends the "set scan area" command to the scanner with the currently selected
+ * scan area. This scan area must be already corrected for "color shuffling" if
+ * necessary.
+ */
+
+SANE_Status
+esci_set_scan_area(Epson_Scanner * s, int x, int y, int width, int height)
+{
+ SANE_Status status;
+ unsigned char params[8];
+
+ DBG(8, "%s: x = %d, y = %d, w = %d, h = %d\n",
+ __func__, x, y, width, height);
+
+ if (!s->hw->cmd->set_scan_area) {
+ DBG(1, "%s: not supported\n", __func__);
+ return SANE_STATUS_UNSUPPORTED;
+ }
+
+ /* verify the scan area */
+ if (x < 0 || y < 0 || width <= 0 || height <= 0)
+ return SANE_STATUS_INVAL;
+
+ params[0] = ESC;
+ params[1] = s->hw->cmd->set_scan_area;
+
+ status = e2_cmd_simple(s, params, 2);
+ if (status != SANE_STATUS_GOOD)
+ return status;
+
+ params[0] = x;
+ params[1] = x >> 8;
+ params[2] = y;
+ params[3] = y >> 8;
+ params[4] = width;
+ params[5] = width >> 8;
+ params[6] = height;
+ params[7] = height >> 8;
+
+ return e2_cmd_simple(s, params, 8);
+}
+
+static int
+get_roundup_index(double frac[], int n)
+{
+ int i, index = -1;
+ double max_val = 0.0;
+
+ for (i = 0; i < n; i++) {
+
+ if (frac[i] < 0)
+ continue;
+
+ if (max_val < frac[i]) {
+ index = i;
+ max_val = frac[i];
+ }
+ }
+
+ return index;
+}
+
+static int
+get_rounddown_index(double frac[], int n)
+{
+ int i, index = -1;
+ double min_val = 1.0;
+
+ for (i = 0; i < n; i++) {
+
+ if (frac[i] > 0)
+ continue;
+
+ if (min_val > frac[i]) {
+ index = i;
+ min_val = frac[i];
+ }
+ }
+
+ return index;
+}
+
+static unsigned char
+int2cpt(int val)
+{
+ if (val >= 0) {
+
+ if (val > 127)
+ val = 127;
+
+ return (unsigned char) val;
+
+ } else {
+
+ val = -val;
+
+ if (val > 127)
+ val = 127;
+
+ return (unsigned char) (0x80 | val);
+ }
+}
+
+static void
+round_cct(double org_cct[], int rnd_cct[])
+{
+ int loop = 0;
+ int i, j, sum[3];
+ double mult_cct[9], frac[9];
+
+ for (i = 0; i < 9; i++) {
+ mult_cct[i] = org_cct[i] * 32;
+ rnd_cct[i] = (int) floor(mult_cct[i] + 0.5);
+ }
+
+ do {
+ for (i = 0; i < 3; i++) {
+
+ int k = i * 3;
+
+ if ((rnd_cct[k] == 11) &&
+ (rnd_cct[k] == rnd_cct[k + 1]) &&
+ (rnd_cct[k] == rnd_cct[k + 2])) {
+
+ rnd_cct[k + i]--;
+ mult_cct[k + i] = rnd_cct[k + i];
+ }
+ }
+
+ for (i = 0; i < 3; i++) {
+
+ int k = i * 3;
+
+ for (sum[i] = j = 0; j < 3; j++)
+ sum[i] += rnd_cct[k + j];
+ }
+
+ for (i = 0; i < 9; i++)
+ frac[i] = mult_cct[i] - rnd_cct[i];
+
+ for (i = 0; i < 3; i++) {
+
+ int k = i * 3;
+
+ if (sum[i] < 32) {
+
+ int index = get_roundup_index(&frac[k], 3);
+ if (index != -1) {
+ rnd_cct[k + index]++;
+ mult_cct[k + index] = rnd_cct[k + index];
+ sum[i]++;
+ }
+
+ } else if (sum[i] > 32) {
+
+ int index = get_rounddown_index(&frac[k], 3);
+ if (index != -1) {
+ rnd_cct[k + index]--;
+ mult_cct[k + index] = rnd_cct[k + index];
+ sum[i]--;
+ }
+ }
+ }
+ }
+
+ while ((++loop < 2)
+ && ((sum[0] != 32) || (sum[1] != 32) || (sum[2] != 32)));
+}
+
+static void
+profile_to_colorcoeff(double *profile, unsigned char *color_coeff)
+{
+ int cc_idx[] = { 4, 1, 7, 3, 0, 6, 5, 2, 8 };
+ int i, color_table[9];
+
+ round_cct(profile, color_table);
+
+ for (i = 0; i < 9; i++)
+ color_coeff[i] = int2cpt(color_table[cc_idx[i]]);
+}
+
+
+/*
+ * Sends the "set color correction coefficients" command with the
+ * currently selected parameters to the scanner.
+ */
+
+SANE_Status
+esci_set_color_correction_coefficients(Epson_Scanner * s, SANE_Word *table)
+{
+ SANE_Status status;
+ unsigned char params[2];
+ unsigned char data[9];
+ double cct[9];
+
+ DBG(8, "%s\n", __func__);
+ if (!s->hw->cmd->set_color_correction_coefficients) {
+ DBG(1, "%s: not supported\n", __func__);
+ return SANE_STATUS_UNSUPPORTED;
+ }
+
+ params[0] = ESC;
+ params[1] = s->hw->cmd->set_color_correction_coefficients;
+
+ status = e2_cmd_simple(s, params, 2);
+ if (status != SANE_STATUS_GOOD)
+ return status;
+
+ cct[0] = SANE_UNFIX(table[0]);
+ cct[1] = SANE_UNFIX(table[1]);
+ cct[2] = SANE_UNFIX(table[2]);
+ cct[3] = SANE_UNFIX(table[3]);
+ cct[4] = SANE_UNFIX(table[4]);
+ cct[5] = SANE_UNFIX(table[5]);
+ cct[6] = SANE_UNFIX(table[6]);
+ cct[7] = SANE_UNFIX(table[7]);
+ cct[8] = SANE_UNFIX(table[8]);
+
+ profile_to_colorcoeff(cct, data);
+
+ DBG(11, "%s: %d,%d,%d %d,%d,%d %d,%d,%d\n", __func__,
+ data[0] , data[1], data[2], data[3],
+ data[4], data[5], data[6], data[7], data[8]);
+
+ return e2_cmd_simple(s, data, 9);
+}
+
+SANE_Status
+esci_set_gamma_table(Epson_Scanner * s)
+{
+ SANE_Status status;
+ unsigned char params[2];
+ unsigned char gamma[257];
+ int n;
+ int table;
+
+/* static const char gamma_cmds[] = { 'M', 'R', 'G', 'B' }; */
+ static const char gamma_cmds[] = { 'R', 'G', 'B' };
+
+ DBG(8, "%s\n", __func__);
+ if (!s->hw->cmd->set_gamma_table)
+ return SANE_STATUS_UNSUPPORTED;
+
+ params[0] = ESC;
+ params[1] = s->hw->cmd->set_gamma_table;
+
+ /* Print the gamma tables before sending them to the scanner */
+
+ if (DBG_LEVEL >= 10) {
+ int c, i, j;
+
+ for (c = 0; c < 3; c++) {
+ for (i = 0; i < 256; i += 16) {
+ char gammaValues[16 * 3 + 1], newValue[4];
+
+ gammaValues[0] = '\0';
+
+ for (j = 0; j < 16; j++) {
+ sprintf(newValue, " %02x",
+ s->gamma_table[c][i + j]);
+ strcat(gammaValues, newValue);
+ }
+ DBG(11, "gamma table[%d][%d] %s\n", c, i,
+ gammaValues);
+ }
+ }
+ }
+
+ for (table = 0; table < 3; table++) {
+ gamma[0] = gamma_cmds[table];
+
+ for (n = 0; n < 256; ++n)
+ gamma[n + 1] = s->gamma_table[table][n];
+
+ status = e2_cmd_simple(s, params, 2);
+ if (status != SANE_STATUS_GOOD)
+ return status;
+
+ status = e2_cmd_simple(s, gamma, 257);
+ if (status != SANE_STATUS_GOOD)
+ return status;
+ }
+
+ return status;
+}
+
+/* ESC F - Request Status
+ * -> ESC f
+ * <- Information block
+ */
+
+SANE_Status
+esci_request_status(SANE_Handle handle, unsigned char *scanner_status)
+{
+ Epson_Scanner *s = (Epson_Scanner *) handle;
+ SANE_Status status;
+ unsigned char params[2];
+
+ DBG(8, "%s\n", __func__);
+
+ if (s->hw->cmd->request_status == 0)
+ return SANE_STATUS_UNSUPPORTED;
+
+ params[0] = ESC;
+ params[1] = s->hw->cmd->request_status;
+
+ e2_send(s, params, 2, 4, &status);
+ if (status != SANE_STATUS_GOOD)
+ return status;
+
+ status = e2_recv_info_block(s, params, 4, NULL);
+ if (status != SANE_STATUS_GOOD)
+ return status;
+
+ if (scanner_status)
+ *scanner_status = params[0];
+
+ DBG(1, "status: %02x\n", params[0]);
+
+ if (params[0] & STATUS_NOT_READY)
+ DBG(1, " scanner in use on another interface\n");
+ else
+ DBG(1, " ready\n");
+
+ if (params[0] & STATUS_FER)
+ DBG(1, " system error\n");
+
+ if (params[0] & STATUS_OPTION)
+ DBG(1, " option equipment is installed\n");
+ else
+ DBG(1, " no option equipment installed\n");
+
+ if (params[0] & STATUS_EXT_COMMANDS)
+ DBG(1, " support extended commands\n");
+ else
+ DBG(1, " does NOT support extended commands\n");
+
+ if (params[0] & STATUS_RESERVED)
+ DBG(0,
+ " a reserved bit is set, please contact the author.\n");
+
+ return status;
+}
+
+/* extended commands */
+
+/* FS I, Request Extended Identity
+ * -> FS I
+ * <- Extended identity data (80)
+ *
+ * Request the properties of the scanner.
+ */
+
+SANE_Status
+esci_request_extended_identity(SANE_Handle handle, unsigned char *buf)
+{
+ unsigned char model[17];
+ Epson_Scanner *s = (Epson_Scanner *) handle;
+ SANE_Status status;
+ unsigned char params[2];
+
+ DBG(8, "%s\n", __func__);
+
+ if (buf == NULL)
+ return SANE_STATUS_INVAL;
+
+ if (s->hw->cmd->request_extended_identity == 0)
+ return SANE_STATUS_UNSUPPORTED;
+
+ params[0] = FS;
+ params[1] = s->hw->cmd->request_extended_identity;
+
+ status = e2_txrx(s, params, 2, buf, 80);
+ if (status != SANE_STATUS_GOOD)
+ return status;
+
+ DBG(1, " command level : %c%c\n", buf[0], buf[1]);
+ DBG(1, " basic resolution: %lu\n", (unsigned long) le32atoh(&buf[4]));
+ DBG(1, " min resolution : %lu\n", (unsigned long) le32atoh(&buf[8]));
+ DBG(1, " max resolution : %lu\n", (unsigned long) le32atoh(&buf[12]));
+ DBG(1, " max pixel num : %lu\n", (unsigned long) le32atoh(&buf[16]));
+ DBG(1, " scan area : %lux%lu\n",
+ (unsigned long) le32atoh(&buf[20]), (unsigned long) le32atoh(&buf[24]));
+
+ DBG(1, " adf area : %lux%lu\n",
+ (unsigned long) le32atoh(&buf[28]), (unsigned long) le32atoh(&buf[32]));
+
+ DBG(1, " tpu area : %lux%lu\n",
+ (unsigned long) le32atoh(&buf[36]), (unsigned long) le32atoh(&buf[40]));
+
+ DBG(1, " capabilities (1): 0x%02x\n", buf[44]);
+ DBG(1, " capabilities (2): 0x%02x\n", buf[45]);
+ DBG(1, " input depth : %d\n", buf[66]);
+ DBG(1, " max output depth: %d\n", buf[67]);
+ DBG(1, " rom version : %c%c%c%c\n",
+ buf[62], buf[63], buf[64], buf[65]);
+
+ memcpy(model, &buf[46], 16);
+ model[16] = '\0';
+ DBG(1, " model name : %s\n", model);
+
+ DBG(1, "options:\n");
+
+ if (le32atoh(&buf[28]) > 0)
+ DBG(1, " ADF detected\n");
+
+ if (le32atoh(&buf[36]) > 0)
+ DBG(1, " TPU detected\n");
+
+ if (buf[44])
+ DBG(1, "capabilities (1):\n");
+
+ if (buf[44] & EXT_IDTY_CAP1_DLF)
+ DBG(1, " main lamp change is supported\n");
+
+ if (buf[44] & EXT_IDTY_CAP1_NOTFBF)
+ DBG(1, " the device is NOT flatbed\n");
+
+ if (buf[44] & EXT_IDTY_CAP1_ADFT)
+ DBG(1, " page type ADF is installed\n");
+
+ if (buf[44] & EXT_IDTY_CAP1_ADFS)
+ DBG(1, " ADF is duplex capable\n");
+
+ if (buf[44] & EXT_IDTY_CAP1_ADFO)
+ DBG(1, " page type ADF loads from the first sheet\n");
+
+ if (buf[44] & EXT_IDTY_CAP1_LID)
+ DBG(1, " lid type option is installed\n");
+
+ if (buf[44] & EXT_IDTY_CAP1_TPIR)
+ DBG(1, " infrared scanning is supported\n");
+
+ if (buf[44] & EXT_IDTY_CAP1_PB)
+ DBG(1, " push button is supported\n");
+
+
+ if (buf[45])
+ DBG(1, "capabilities (2):\n");
+
+ if (buf[45] & EXT_IDTY_CAP2_AFF)
+ DBG(1, " ADF has auto form feed\n");
+
+ if (buf[45] & EXT_IDTY_CAP2_DFD)
+ DBG(1, " ADF has double feed detection\n");
+
+ if (buf[45] & EXT_IDTY_CAP2_ADFAS)
+ DBG(1, " ADF has auto scan\n");
+
+ return SANE_STATUS_GOOD;
+}
+
+/* FS F, request scanner status */
+SANE_Status
+esci_request_scanner_status(SANE_Handle handle, unsigned char *buf)
+{
+ Epson_Scanner *s = (Epson_Scanner *) handle;
+ SANE_Status status;
+ unsigned char params[2];
+
+ DBG(8, "%s\n", __func__);
+
+ if (!s->hw->extended_commands)
+ return SANE_STATUS_UNSUPPORTED;
+
+ if (buf == NULL)
+ return SANE_STATUS_INVAL;
+
+ params[0] = FS;
+ params[1] = 'F';
+
+ status = e2_txrx(s, params, 2, buf, 16);
+ if (status != SANE_STATUS_GOOD)
+ return status;
+
+ DBG(1, "global status : 0x%02x\n", buf[0]);
+
+ if (buf[0] & FSF_STATUS_MAIN_FER)
+ DBG(1, " system error\n");
+
+ if (buf[0] & FSF_STATUS_MAIN_NR)
+ DBG(1, " not ready\n");
+
+ if (buf[0] & FSF_STATUS_MAIN_WU)
+ DBG(1, " scanner is warming up\n");
+
+ if (buf[0] & FSF_STATUS_MAIN_CWU)
+ DBG(1, " warmup can be cancelled\n");
+
+
+ DBG(1, "adf status : 0x%02x\n", buf[1]);
+
+ if (buf[1] & FSF_STATUS_ADF_IST)
+ DBG(11, " installed\n");
+ else
+ DBG(11, " not installed\n");
+
+ if (buf[1] & FSF_STATUS_ADF_EN)
+ DBG(11, " enabled\n");
+ else
+ DBG(11, " not enabled\n");
+
+ if (buf[1] & FSF_STATUS_ADF_ERR)
+ DBG(1, " error\n");
+
+ if (buf[1] & FSF_STATUS_ADF_PE)
+ DBG(1, " paper empty\n");
+
+ if (buf[1] & FSF_STATUS_ADF_PJ)
+ DBG(1, " paper jam\n");
+
+ if (buf[1] & FSF_STATUS_ADF_OPN)
+ DBG(1, " cover open\n");
+
+ if (buf[1] & FSF_STATUS_ADF_PAG)
+ DBG(1, " duplex capable\n");
+
+
+ DBG(1, "tpu status : 0x%02x\n", buf[2]);
+
+ if (buf[2] & FSF_STATUS_TPU_IST)
+ DBG(11, " installed\n");
+ else
+ DBG(11, " not installed\n");
+
+ if (buf[2] & FSF_STATUS_TPU_EN)
+ DBG(11, " enabled\n");
+ else
+ DBG(11, " not enabled\n");
+
+ if (buf[2] & FSF_STATUS_TPU_ERR)
+ DBG(1, " error\n");
+
+ if (buf[1] & FSF_STATUS_TPU_OPN)
+ DBG(1, " cover open\n");
+
+
+ DBG(1, "device type : 0x%02x\n", buf[3] & 0xC0);
+ DBG(1, "main body status: 0x%02x\n", buf[3] & 0x3F);
+
+ if (buf[3] & FSF_STATUS_MAIN2_PE)
+ DBG(1, " paper empty\n");
+
+ if (buf[3] & FSF_STATUS_MAIN2_PJ)
+ DBG(1, " paper jam\n");
+
+ if (buf[3] & FSF_STATUS_MAIN2_OPN)
+ DBG(1, " cover open\n");
+
+ return SANE_STATUS_GOOD;
+}
+
+SANE_Status
+esci_set_scanning_parameter(SANE_Handle handle, unsigned char *buf)
+{
+ Epson_Scanner *s = (Epson_Scanner *) handle;
+ SANE_Status status;
+ unsigned char params[2];
+
+ DBG(8, "%s\n", __func__);
+
+ if (buf == NULL)
+ return SANE_STATUS_INVAL;
+
+ params[0] = FS;
+ params[1] = 'W';
+
+ DBG(10, "resolution of main scan : %lu\n", (unsigned long) le32atoh(&buf[0]));
+ DBG(10, "resolution of sub scan : %lu\n", (unsigned long) le32atoh(&buf[4]));
+ DBG(10, "offset length of main scan : %lu\n", (unsigned long) le32atoh(&buf[8]));
+ DBG(10, "offset length of sub scan : %lu\n", (unsigned long) le32atoh(&buf[12]));
+ DBG(10, "scanning length of main scan: %lu\n", (unsigned long) le32atoh(&buf[16]));
+ DBG(10, "scanning length of sub scan : %lu\n", (unsigned long) le32atoh(&buf[20]));
+ DBG(10, "scanning color : %d\n", buf[24]);
+ DBG(10, "data format : %d\n", buf[25]);
+ DBG(10, "option control : %d\n", buf[26]);
+ DBG(10, "scanning mode : %d\n", buf[27]);
+ DBG(10, "block line number : %d\n", buf[28]);
+ DBG(10, "gamma correction : %d\n", buf[29]);
+ DBG(10, "brightness : %d\n", buf[30]);
+ DBG(10, "color correction : %d\n", buf[31]);
+ DBG(10, "halftone processing : %d\n", buf[32]);
+ DBG(10, "threshold : %d\n", buf[33]);
+ DBG(10, "auto area segmentation : %d\n", buf[34]);
+ DBG(10, "sharpness control : %d\n", buf[35]);
+ DBG(10, "mirroring : %d\n", buf[36]);
+ DBG(10, "film type : %d\n", buf[37]);
+ DBG(10, "main lamp lighting mode : %d\n", buf[38]);
+
+ status = e2_cmd_simple(s, params, 2);
+ if (status != SANE_STATUS_GOOD)
+ return status;
+
+ status = e2_cmd_simple(s, buf, 64);
+ if (status != SANE_STATUS_GOOD)
+ return status;
+
+ return SANE_STATUS_GOOD;
+}
+
+/* FS S */
+
+SANE_Status
+esci_get_scanning_parameter(SANE_Handle handle, unsigned char *buf)
+{
+ Epson_Scanner *s = (Epson_Scanner *) handle;
+ SANE_Status status;
+ unsigned char params[2];
+
+ DBG(8, "%s\n", __func__);
+
+ if (buf == NULL)
+ return SANE_STATUS_INVAL;
+
+ params[0] = FS;
+ params[1] = 'S';
+
+ status = e2_txrx(s, params, 2, buf, 64);
+ if (status != SANE_STATUS_GOOD)
+ return status;
+
+ DBG(10, "resolution of main scan : %lu\n",
+ (u_long) le32atoh(&buf[0]));
+ DBG(10, "resolution of sub scan : %lu\n",
+ (u_long) le32atoh(&buf[4]));
+ DBG(10, "offset length of main scan : %lu\n",
+ (u_long) le32atoh(&buf[8]));
+ DBG(10, "offset length of sub scan : %lu\n",
+ (u_long) le32atoh(&buf[12]));
+ DBG(10, "scanning length of main scan: %lu\n",
+ (u_long) le32atoh(&buf[16]));
+ DBG(10, "scanning length of sub scan : %lu\n",
+ (u_long) le32atoh(&buf[20]));
+ DBG(10, "scanning color : %d\n", buf[24]);
+ DBG(10, "data format : %d\n", buf[25]);
+ DBG(10, "option control : %d\n", buf[26]);
+ DBG(10, "scanning mode : %d\n", buf[27]);
+ DBG(10, "block line number : %d\n", buf[28]);
+ DBG(10, "gamma correction : %d\n", buf[29]);
+ DBG(10, "brightness : %d\n", buf[30]);
+ DBG(10, "color correction : %d\n", buf[31]);
+ DBG(10, "halftone processing : %d\n", buf[32]);
+ DBG(10, "threshold : %d\n", buf[33]);
+ DBG(10, "auto area segmentation : %d\n", buf[34]);
+ DBG(10, "sharpness control : %d\n", buf[35]);
+ DBG(10, "mirroring : %d\n", buf[36]);
+ DBG(10, "film type : %d\n", buf[37]);
+ DBG(10, "main lamp lighting mode : %d\n", buf[38]);
+
+ return SANE_STATUS_GOOD;
+}
+
+/* ESC # */
+
+SANE_Status
+esci_enable_infrared(SANE_Handle handle)
+{
+ Epson_Scanner *s = (Epson_Scanner *) handle;
+ SANE_Status status;
+ int i;
+ unsigned char params[2];
+ unsigned char buf[64];
+
+ unsigned char seq[32] = {
+ 0xCA, 0xFB, 0x77, 0x71, 0x20, 0x16, 0xDA, 0x09,
+ 0x5F, 0x57, 0x09, 0x12, 0x04, 0x83, 0x76, 0x77,
+ 0x3C, 0x73, 0x9C, 0xBE, 0x7A, 0xE0, 0x52, 0xE2,
+ 0x90, 0x0D, 0xFF, 0x9A, 0xEF, 0x4C, 0x2C, 0x81
+ };
+
+ DBG(8, "%s\n", __func__);
+
+ status = esci_get_scanning_parameter(handle, buf);
+ if (status != SANE_STATUS_GOOD)
+ return status;
+
+ for (i = 0; i < 32; i++) {
+ buf[i] = seq[i] ^ buf[i];
+ }
+
+ params[0] = ESC;
+ params[1] = '#';
+
+ status = e2_cmd_simple(s, params, 2);
+ if (status != SANE_STATUS_GOOD)
+ return status;
+
+ status = e2_cmd_simple(s, buf, 32);
+ if (status != SANE_STATUS_GOOD)
+ return status;
+
+ return SANE_STATUS_GOOD;
+}
+
+SANE_Status
+esci_request_command_parameter(SANE_Handle handle, unsigned char *buf)
+{
+ Epson_Scanner *s = (Epson_Scanner *) handle;
+ SANE_Status status;
+ unsigned char params[2];
+
+ DBG(8, "%s\n", __func__);
+
+ if (s->hw->cmd->request_condition == 0)
+ return SANE_STATUS_UNSUPPORTED;
+
+ params[0] = ESC;
+ params[1] = s->hw->cmd->request_condition;
+
+ status = e2_cmd_info_block(s, params, 2, 45, &buf, NULL);
+ if (status != SANE_STATUS_GOOD)
+ return status;
+
+ DBG(1, "scanning parameters:\n");
+ DBG(1, "color : %d\n", buf[1]);
+ DBG(1, "resolution : %dx%d\n",
+ buf[4] << 8 | buf[3], buf[6] << 8 | buf[5]);
+ DBG(1, "halftone : %d\n", buf[19]);
+ DBG(1, "brightness : %d\n", buf[21]);
+ DBG(1, "color correction : %d\n", buf[28]);
+ DBG(1, "gamma : %d\n", buf[23]);
+ DBG(1, "sharpness : %d\n", buf[30]);
+ DBG(1, "threshold : %d\n", buf[38]);
+ DBG(1, "data format : %d\n", buf[17]);
+ DBG(1, "mirroring : %d\n", buf[34]);
+ DBG(1, "option unit control : %d\n", buf[42]);
+ DBG(1, "film type : %d\n", buf[44]);
+ DBG(1, "auto area segmentation : %d\n", buf[36]);
+ DBG(1, "line counter : %d\n", buf[40]);
+ DBG(1, "scanning mode : %d\n", buf[32]);
+ DBG(1, "zoom : %d,%d\n", buf[26], buf[25]);
+ DBG(1, "scan area : %d,%d %d,%d\n",
+ buf[9] << 8 | buf[8], buf[11] << 8 | buf[10],
+ buf[13] << 8 | buf[12], buf[15] << 8 | buf[14]);
+ return status;
+}
+
+/* ESC q - Request Focus Position
+ * -> ESC q
+ * <- Information block
+ * <- Focus position status (2)
+ * 0 - Error status
+ * 1 - Focus position
+ */
+
+SANE_Status
+esci_request_focus_position(SANE_Handle handle, unsigned char *position)
+{
+ SANE_Status status;
+ unsigned char *buf;
+ Epson_Scanner *s = (Epson_Scanner *) handle;
+
+ unsigned char params[2];
+
+ DBG(8, "%s\n", __func__);
+
+ if (s->hw->cmd->request_focus_position == 0)
+ return SANE_STATUS_UNSUPPORTED;
+
+ params[0] = ESC;
+ params[1] = s->hw->cmd->request_focus_position;
+
+ status = e2_cmd_info_block(s, params, 2, 2, &buf, NULL);
+ if (status != SANE_STATUS_GOOD)
+ return status;
+
+ if (buf[0] & 0x01)
+ DBG(1, "autofocus error\n");
+
+ *position = buf[1];
+ DBG(8, " focus position = 0x%x\n", buf[1]);
+
+ free(buf);
+
+ return status;
+}
+
+/* ESC ! - Request Push Button Status
+ * -> ESC !
+ * <- Information block
+ * <- Push button status (1)
+ */
+
+SANE_Status
+esci_request_push_button_status(SANE_Handle handle, unsigned char *bstatus)
+{
+ Epson_Scanner *s = (Epson_Scanner *) handle;
+ SANE_Status status;
+ unsigned char params[2];
+ unsigned char *buf;
+
+ DBG(8, "%s\n", __func__);
+
+ if (s->hw->cmd->request_push_button_status == 0) {
+ DBG(1, "push button status unsupported\n");
+ return SANE_STATUS_UNSUPPORTED;
+ }
+
+ params[0] = ESC;
+ params[1] = s->hw->cmd->request_push_button_status;
+
+ status = e2_cmd_info_block(s, params, 2, 1, &buf, NULL);
+ if (status != SANE_STATUS_GOOD)
+ return status;
+
+ DBG(1, "push button status = %d\n", buf[0]);
+ *bstatus = buf[0];
+
+ free(buf);
+
+ return status;
+}
+
+
+/*
+ * Request Identity information from scanner and fill in information
+ * into dev and/or scanner structures.
+ * XXX information should be parsed separately.
+ */
+SANE_Status
+esci_request_identity(SANE_Handle handle, unsigned char **buf, size_t *len)
+{
+ Epson_Scanner *s = (Epson_Scanner *) handle;
+ unsigned char params[2];
+
+ DBG(8, "%s\n", __func__);
+
+ if (!s->hw->cmd->request_identity)
+ return SANE_STATUS_INVAL;
+
+ params[0] = ESC;
+ params[1] = s->hw->cmd->request_identity;
+
+ return e2_cmd_info_block(s, params, 2, 0, buf, len);
+}
+
+
+/*
+ * Request information from scanner
+ */
+SANE_Status
+esci_request_identity2(SANE_Handle handle, unsigned char **buf)
+{
+ Epson_Scanner *s = (Epson_Scanner *) handle;
+ SANE_Status status;
+ size_t len;
+ unsigned char params[2];
+
+ DBG(8, "%s\n", __func__);
+
+ if (s->hw->cmd->request_identity2 == 0)
+ return SANE_STATUS_UNSUPPORTED;
+
+ params[0] = ESC;
+ params[1] = s->hw->cmd->request_identity2;
+
+ status = e2_cmd_info_block(s, params, 2, 0, buf, &len);
+ if (status != SANE_STATUS_GOOD)
+ return status;
+
+ return status;
+}
+
+/* Send the "initialize scanner" command to the device and reset it */
+
+SANE_Status
+esci_reset(Epson_Scanner * s)
+{
+ SANE_Status status;
+ unsigned char params[2];
+
+ DBG(8, "%s\n", __func__);
+
+ if (!s->hw->cmd->initialize_scanner)
+ return SANE_STATUS_GOOD;
+
+ params[0] = ESC;
+ params[1] = s->hw->cmd->initialize_scanner;
+
+ if (s->fd == -1)
+ return SANE_STATUS_GOOD;
+
+ status = e2_cmd_simple(s, params, 2);
+
+ return status;
+}
+
+SANE_Status
+esci_feed(Epson_Scanner * s)
+{
+ unsigned char params[1];
+
+ DBG(8, "%s\n", __func__);
+
+ if (!s->hw->cmd->feed)
+ return SANE_STATUS_UNSUPPORTED;
+
+ params[0] = s->hw->cmd->feed;
+
+ return e2_cmd_simple(s, params, 1);
+}
+
+
+/*
+ * Eject the current page from the ADF. The scanner is opened prior to
+ * sending the command and closed afterwards.
+ */
+
+SANE_Status
+esci_eject(Epson_Scanner * s)
+{
+ unsigned char params[1];
+
+ DBG(8, "%s\n", __func__);
+
+ if (!s->hw->cmd->eject)
+ return SANE_STATUS_UNSUPPORTED;
+
+ if (s->fd == -1)
+ return SANE_STATUS_GOOD;
+
+ params[0] = s->hw->cmd->eject;
+
+ return e2_cmd_simple(s, params, 1);
+}
+
+SANE_Status
+esci_request_extended_status(SANE_Handle handle, unsigned char **data,
+ size_t * data_len)
+{
+ Epson_Scanner *s = (Epson_Scanner *) handle;
+ SANE_Status status = SANE_STATUS_GOOD;
+ unsigned char params[2];
+ unsigned char *buf;
+ size_t buf_len;
+
+ DBG(8, "%s\n", __func__);
+
+ if (s->hw->cmd->request_extended_status == 0)
+ return SANE_STATUS_UNSUPPORTED;
+
+ params[0] = ESC;
+ params[1] = s->hw->cmd->request_extended_status;
+
+ /* This command returns 33 bytes of data on old scanners
+ * and 42 (CMD_SIZE_EXT_STATUS) on new ones.
+ */
+ status = e2_cmd_info_block(s, params, 2, CMD_SIZE_EXT_STATUS,
+ &buf, &buf_len);
+ if (status != SANE_STATUS_GOOD)
+ return status;
+
+ switch (buf_len) {
+ case 33:
+ case 42:
+ break;
+ default:
+ DBG(1, "%s: unknown reply length (%lu)\n", __func__,
+ (unsigned long) buf_len);
+ break;
+ }
+
+ DBG(4, "main = %02x, ADF = %02x, TPU = %02x, main 2 = %02x\n",
+ buf[0], buf[1], buf[6], buf[11]);
+
+ if (buf[0] & EXT_STATUS_FER)
+ DBG(1, "system error\n");
+
+ if (buf[0] & EXT_STATUS_WU)
+ DBG(1, "scanner is warming up\n");
+
+ if (buf[1] & EXT_STATUS_ERR)
+ DBG(1, "ADF: other error\n");
+
+ if (buf[1] & EXT_STATUS_PE)
+ DBG(1, "ADF: no paper\n");
+
+ if (buf[1] & EXT_STATUS_PJ)
+ DBG(1, "ADF: paper jam\n");
+
+ if (buf[1] & EXT_STATUS_OPN)
+ DBG(1, "ADF: cover open\n");
+
+ if (buf[6] & EXT_STATUS_ERR)
+ DBG(1, "TPU: other error\n");
+
+ /* give back a pointer to the payload
+ * if the user requested it, otherwise
+ * free it.
+ */
+
+ if (data)
+ *data = buf;
+ else
+ free(buf);
+
+ if (data_len)
+ *data_len = buf_len;
+
+ return status;
+}