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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/genesys_gl124.c
Initial import of sane-backends version 1.0.24-1.2
Diffstat (limited to 'backend/genesys_gl124.c')
-rw-r--r--backend/genesys_gl124.c3891
1 files changed, 3891 insertions, 0 deletions
diff --git a/backend/genesys_gl124.c b/backend/genesys_gl124.c
new file mode 100644
index 0000000..9e2fb8a
--- /dev/null
+++ b/backend/genesys_gl124.c
@@ -0,0 +1,3891 @@
+/* sane - Scanner Access Now Easy.
+
+ Copyright (C) 2010-2013 Stéphane Voltz <stef.dev@free.fr>
+
+
+ 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; either version 2 of the
+ License, or (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ MA 02111-1307, USA.
+
+ As a special exception, the authors of SANE give permission for
+ additional uses of the libraries contained in this release of SANE.
+
+ The exception is that, if you link a SANE library with other files
+ to produce an executable, this does not by itself cause the
+ resulting executable to be covered by the GNU General Public
+ License. Your use of that executable is in no way restricted on
+ account of linking the SANE library code into it.
+
+ This exception does not, however, invalidate any other reasons why
+ the executable file might be covered by the GNU General Public
+ License.
+
+ If you submit changes to SANE to the maintainers to be included in
+ a subsequent release, you agree by submitting the changes that
+ those changes may be distributed with this exception intact.
+
+ If you write modifications of your own for SANE, it is your choice
+ whether to permit this exception to apply to your modifications.
+ If you do not wish that, delete this exception notice.
+*/
+
+#undef BACKEND_NAME
+#define BACKEND_NAME genesys_gl124
+
+#include "genesys_gl124.h"
+
+/****************************************************************************
+ Low level function
+ ****************************************************************************/
+
+/* ------------------------------------------------------------------------ */
+/* Read and write RAM, registers and AFE */
+/* ------------------------------------------------------------------------ */
+
+
+/** @brief read scanned data
+ * Read in 0xeff0 maximum sized blocks. This read is done in 2
+ * parts if not multple of 512. First read is rounded to a multiple of 512 bytes, last read fetches the
+ * remainder. Read addr is always 0x10000000 with the memory layout setup.
+ * @param dev device to read data from
+ * @param addr address within ASIC emory space
+ * @param data pointer where to store the read data
+ * @param len size to read
+ */
+static SANE_Status
+gl124_bulk_read_data (Genesys_Device * dev, uint8_t addr,
+ uint8_t * data, size_t len)
+{
+ SANE_Status status;
+ size_t size, target, read, done;
+ uint8_t outdata[8], *buffer;
+
+ DBG (DBG_io, "gl124_bulk_read_data: requesting %lu bytes (unused addr=0x%02x)\n", (u_long) len,addr);
+
+ if (len == 0)
+ return SANE_STATUS_GOOD;
+
+ target = len;
+ buffer = data;
+
+ /* loop until computed data size is read */
+ while (target)
+ {
+ if (target > 0xeff0)
+ {
+ size = 0xeff0;
+ }
+ else
+ {
+ size = target;
+ }
+
+ /* hard coded 0x10000000 addr */
+ outdata[0] = 0;
+ outdata[1] = 0;
+ outdata[2] = 0;
+ outdata[3] = 0x10;
+
+ /* data size to transfer */
+ outdata[4] = (size & 0xff);
+ outdata[5] = ((size >> 8) & 0xff);
+ outdata[6] = ((size >> 16) & 0xff);
+ outdata[7] = ((size >> 24) & 0xff);
+
+ status =
+ sanei_usb_control_msg (dev->dn, REQUEST_TYPE_OUT, REQUEST_BUFFER,
+ VALUE_BUFFER, 0x00, sizeof (outdata),
+ outdata);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (DBG_error, "%s failed while writing command: %s\n",
+ __FUNCTION__, sane_strstatus (status));
+ return status;
+ }
+
+ /* blocks must be multiple of 512 but not last block */
+ read = size;
+ read /= 512;
+ read *= 512;
+
+ if(read>0)
+ {
+ DBG (DBG_io2,
+ "gl124_bulk_read_data: trying to read %lu bytes of data\n",
+ (u_long) read);
+ status = sanei_usb_read_bulk (dev->dn, data, &read);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (DBG_error,
+ "gl124_bulk_read_data failed while reading bulk data: %s\n",
+ sane_strstatus (status));
+ return status;
+ }
+ }
+
+ /* read less than 512 bytes remainder */
+ if (read < size)
+ {
+ done = read;
+ read = size - read;
+ DBG (DBG_io2,
+ "gl124_bulk_read_data: trying to read remaining %lu bytes of data\n",
+ (u_long) read);
+ status = sanei_usb_read_bulk (dev->dn, data+done, &read);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (DBG_error,
+ "gl124_bulk_read_data failed while reading bulk data: %s\n",
+ sane_strstatus (status));
+ return status;
+ }
+ }
+
+ DBG (DBG_io2, "%s: read %lu bytes, %lu remaining\n", __FUNCTION__,
+ (u_long) size, (u_long) (target - size));
+
+ target -= size;
+ data += size;
+ }
+
+ if (DBG_LEVEL >= DBG_data && dev->binary!=NULL)
+ {
+ fwrite(buffer, len, 1, dev->binary);
+ }
+
+ DBGCOMPLETED;
+
+ return SANE_STATUS_GOOD;
+}
+
+/****************************************************************************
+ Mid level functions
+ ****************************************************************************/
+
+static SANE_Bool
+gl124_get_fast_feed_bit (Genesys_Register_Set * regs)
+{
+ Genesys_Register_Set *r = NULL;
+
+ r = sanei_genesys_get_address (regs, REG02);
+ if (r && (r->value & REG02_FASTFED))
+ return SANE_TRUE;
+ return SANE_FALSE;
+}
+
+static SANE_Bool
+gl124_get_filter_bit (Genesys_Register_Set * regs)
+{
+ Genesys_Register_Set *r = NULL;
+
+ r = sanei_genesys_get_address (regs, REG04);
+ if (r && (r->value & REG04_FILTER))
+ return SANE_TRUE;
+ return SANE_FALSE;
+}
+
+static SANE_Bool
+gl124_get_lineart_bit (Genesys_Register_Set * regs)
+{
+ Genesys_Register_Set *r = NULL;
+
+ r = sanei_genesys_get_address (regs, REG04);
+ if (r && (r->value & REG04_LINEART))
+ return SANE_TRUE;
+ return SANE_FALSE;
+}
+
+static SANE_Bool
+gl124_get_bitset_bit (Genesys_Register_Set * regs)
+{
+ Genesys_Register_Set *r = NULL;
+
+ r = sanei_genesys_get_address (regs, REG04);
+ if (r && (r->value & REG04_BITSET))
+ return SANE_TRUE;
+ return SANE_FALSE;
+}
+
+static SANE_Bool
+gl124_get_gain4_bit (Genesys_Register_Set * regs)
+{
+ Genesys_Register_Set *r = NULL;
+
+ r = sanei_genesys_get_address (regs, REG06);
+ if (r && (r->value & REG06_GAIN4))
+ return SANE_TRUE;
+ return SANE_FALSE;
+}
+
+static SANE_Bool
+gl124_test_buffer_empty_bit (SANE_Byte val)
+{
+ if (val & BUFEMPTY)
+ return SANE_TRUE;
+ return SANE_FALSE;
+}
+
+static SANE_Bool
+gl124_test_motor_flag_bit (SANE_Byte val)
+{
+ if (val & MOTORENB)
+ return SANE_TRUE;
+ return SANE_FALSE;
+}
+
+/** @brief sensor profile
+ * search for the database of motor profiles and get the best one. Each
+ * profile is at a specific dpihw. Use LiDE 110 table by default.
+ * @param sensor_type sensor id
+ * @param dpi hardware dpi for the scan
+ * @param half_ccd flag to signal half ccd mode
+ * @return a pointer to a Sensor_Profile struct
+ */
+static Sensor_Profile *get_sensor_profile(int sensor_type, int dpi, int half_ccd)
+{
+ unsigned int i;
+ int idx;
+
+ i=0;
+ idx=-1;
+ while(i<sizeof(sensors)/sizeof(Sensor_Profile))
+ {
+ /* exact match */
+ if(sensors[i].sensor_type==sensor_type
+ && sensors[i].dpi==dpi
+ && sensors[i].half_ccd==half_ccd)
+ {
+ return &(sensors[i]);
+ }
+
+ /* closest match */
+ if(sensors[i].sensor_type==sensor_type
+ && sensors[i].half_ccd==half_ccd)
+ {
+ if(idx<0)
+ {
+ idx=i;
+ }
+ else
+ {
+ if(sensors[i].dpi>=dpi
+ && sensors[i].dpi<sensors[idx].dpi)
+ {
+ idx=i;
+ }
+ }
+ }
+ i++;
+ }
+
+ /* default fallback */
+ if(idx<0)
+ {
+ DBG (DBG_warn,"%s: using default sensor profile\n",__FUNCTION__);
+ idx=0;
+ }
+
+ return &(sensors[idx]);
+}
+
+/** @brief motor profile
+ * search for the database of motor profiles and get the best one. Each
+ * profile is at full step and at a reference exposure. Use LiDE 110 table
+ * by default.
+ * @param motor_type motor id
+ * @param exposure exposure time
+ * @return a pointer to a Motor_Profile struct
+ */
+static Motor_Profile *get_motor_profile(int motor_type, int exposure)
+{
+ unsigned int i;
+ int idx;
+
+ i=0;
+ idx=-1;
+ while(i<sizeof(motors)/sizeof(Motor_Profile))
+ {
+ /* exact match */
+ if(motors[i].motor_type==motor_type && motors[i].exposure==exposure)
+ {
+ return &(motors[i]);
+ }
+
+ /* closest match */
+ if(motors[i].motor_type==motor_type)
+ {
+ if(idx<0)
+ {
+ idx=i;
+ }
+ else
+ {
+ if(motors[i].exposure>=exposure
+ && motors[i].exposure<motors[idx].exposure)
+ {
+ idx=i;
+ }
+ }
+ }
+ i++;
+ }
+
+ /* default fallback */
+ if(idx<0)
+ {
+ DBG (DBG_warn,"%s: using default motor profile\n",__FUNCTION__);
+ idx=0;
+ }
+
+ return &(motors[idx]);
+}
+
+/** @brief generate slope table
+ * Generate the slope table to use for the scan using a reference slope
+ * table.
+ * @param slope pointer to the slope table to fill
+ * @param steps pointer to return used step number
+ * @param dpi desired motor resolution
+ * @param exposure exposure used
+ * @param base_dpi base resolution of the motor
+ * @param step_type step type used for scan
+ * @param factor shrink factor for the slope
+ * @param motor_type motor id
+ */
+static int gl124_slope_table(uint16_t *slope,
+ int *steps,
+ int dpi,
+ int exposure,
+ int base_dpi,
+ int step_type,
+ int factor,
+ int motor_type)
+{
+int sum, i;
+uint16_t target,current;
+Motor_Profile *profile;
+
+ /* required speed */
+ target=((exposure * dpi) / base_dpi)>>step_type;
+
+ /* fill result with target speed */
+ for(i=0;i<SLOPE_TABLE_SIZE;i++)
+ slope[i]=target;
+
+ profile=get_motor_profile(motor_type,exposure);
+
+ /* use profile to build table */
+ i=0;
+ sum=0;
+
+ /* first step is used unmodified */
+ current=profile->table[0];
+
+ /* loop on profile copying and apply step type */
+ while(i<SLOPE_TABLE_SIZE && current>=target)
+ {
+ slope[i]=current;
+ sum+=slope[i];
+ i++;
+ current=profile->table[i*factor]>>step_type;
+ }
+ if(i<3 && DBG_LEVEL >= DBG_warn)
+ {
+ DBG (DBG_warn,"%s: short slope table, failed to reach %d\n",__FUNCTION__,target);
+ }
+
+ /* ensure minimal slope size */
+ while(i<8)
+ {
+ sum+=slope[i];
+ i++;
+ }
+
+ /* return used steps and acceleration sum */
+ *steps=i;
+ return sum;
+}
+
+/* returns the max register bulk size */
+static int
+gl124_bulk_full_size (void)
+{
+ return GENESYS_GL124_MAX_REGS;
+}
+
+static SANE_Status
+gl124_homsnr_gpio(Genesys_Device *dev)
+{
+uint8_t val;
+SANE_Status status=SANE_STATUS_GOOD;
+
+ RIE (sanei_genesys_read_register (dev, REG32, &val));
+ val &= ~REG32_GPIO10;
+ RIE (sanei_genesys_write_register (dev, REG32, val));
+ return status;
+}
+
+/**@brief compute half ccd mode
+ * Compute half CCD mode flag. Half CCD is on when dpiset it twice
+ * the actual scanning resolution. Used for fast scans.
+ * @param model pointer to device model
+ * @param xres required horizontal resolution
+ * @return SANE_TRUE if half CCD mode enabled
+ */
+static SANE_Bool compute_half_ccd(Genesys_Model *model, int xres)
+{
+ /* we have 2 domains for ccd: xres below or above half ccd max dpi */
+ if (xres<=300 && (model->flags & GENESYS_FLAG_HALF_CCD_MODE))
+ {
+ return SANE_TRUE;
+ }
+ return SANE_FALSE;
+}
+
+/** @brief set all registers to default values .
+ * This function is called only once at the beginning and
+ * fills register startup values for registers reused across scans.
+ * Those that are rarely modified or not modified are written
+ * individually.
+ * @param dev device structure holding register set to initialize
+ */
+static void
+gl124_init_registers (Genesys_Device * dev)
+{
+ DBGSTART;
+
+ memset (dev->reg, 0, GENESYS_GL124_MAX_REGS * sizeof (Genesys_Register_Set));
+
+ /* default to LiDE 110 */
+ SETREG (0x01,0xa2); /* + REG01_SHDAREA */
+ SETREG (0x02,0x90);
+ SETREG (0x03,0x50);
+ SETREG (0x03,0x50 & ~REG03_AVEENB);
+ SETREG (0x04,0x03);
+ SETREG (0x05,0x00);
+ SETREG (0x06,0x50 | REG06_GAIN4);
+ SETREG (0x09,0x00);
+ SETREG (0x0a,0xc0);
+ SETREG (0x0b,0x2a);
+ SETREG (0x0c,0x12);
+ SETREG (0x11,0x00);
+ SETREG (0x12,0x00);
+ SETREG (0x13,0x0f);
+ SETREG (0x14,0x00);
+ SETREG (0x15,0x80);
+ SETREG (0x16,0x10);
+ SETREG (0x17,0x04);
+ SETREG (0x18,0x00);
+ SETREG (0x19,0x01);
+ SETREG (0x1a,0x30);
+ SETREG (0x1b,0x00);
+ SETREG (0x1c,0x00);
+ SETREG (0x1d,0x01);
+ SETREG (0x1e,0x10);
+ SETREG (0x1f,0x00);
+ SETREG (0x20,0x15);
+ SETREG (0x21,0x00);
+ SETREG (0x22,0x02);
+ SETREG (0x23,0x00);
+ SETREG (0x24,0x00);
+ SETREG (0x25,0x00);
+ SETREG (0x26,0x0d);
+ SETREG (0x27,0x48);
+ SETREG (0x28,0x00);
+ SETREG (0x29,0x56);
+ SETREG (0x2a,0x5e);
+ SETREG (0x2b,0x02);
+ SETREG (0x2c,0x02);
+ SETREG (0x2d,0x58);
+ SETREG (0x3b,0x00);
+ SETREG (0x3c,0x00);
+ SETREG (0x3d,0x00);
+ SETREG (0x3e,0x00);
+ SETREG (0x3f,0x02);
+ SETREG (0x40,0x00);
+ SETREG (0x41,0x00);
+ SETREG (0x42,0x00);
+ SETREG (0x43,0x00);
+ SETREG (0x44,0x00);
+ SETREG (0x45,0x00);
+ SETREG (0x46,0x00);
+ SETREG (0x47,0x00);
+ SETREG (0x48,0x00);
+ SETREG (0x49,0x00);
+ SETREG (0x4f,0x00);
+ SETREG (0x52,0x00);
+ SETREG (0x53,0x02);
+ SETREG (0x54,0x04);
+ SETREG (0x55,0x06);
+ SETREG (0x56,0x04);
+ SETREG (0x57,0x04);
+ SETREG (0x58,0x04);
+ SETREG (0x59,0x04);
+ SETREG (0x5a,0x1a);
+ SETREG (0x5b,0x00);
+ SETREG (0x5c,0xc0);
+ SETREG (0x5f,0x00);
+ SETREG (0x60,0x02);
+ SETREG (0x61,0x00);
+ SETREG (0x62,0x00);
+ SETREG (0x63,0x00);
+ SETREG (0x64,0x00);
+ SETREG (0x65,0x00);
+ SETREG (0x66,0x00);
+ SETREG (0x67,0x00);
+ SETREG (0x68,0x00);
+ SETREG (0x69,0x00);
+ SETREG (0x6a,0x00);
+ SETREG (0x6b,0x00);
+ SETREG (0x6c,0x00);
+ SETREG (0x6d,0xd0);
+ SETREG (0x6e,0x00);
+ SETREG (0x6f,0x00);
+ SETREG (0x70,0x06);
+ SETREG (0x71,0x08);
+ SETREG (0x72,0x08);
+ SETREG (0x73,0x0a);
+
+ /* CKxMAP */
+ SETREG (0x74,0x00);
+ SETREG (0x75,0x00);
+ SETREG (0x76,0x3c);
+ SETREG (0x77,0x00);
+ SETREG (0x78,0x00);
+ SETREG (0x79,0x9f);
+ SETREG (0x7a,0x00);
+ SETREG (0x7b,0x00);
+ SETREG (0x7c,0x55);
+
+ SETREG (0x7d,0x00);
+ SETREG (0x7e,0x08);
+ SETREG (0x7f,0x58);
+ SETREG (0x80,0x00);
+ SETREG (0x81,0x14);
+
+ /* STRPIXEL */
+ SETREG (0x82,0x00);
+ SETREG (0x83,0x00);
+ SETREG (0x84,0x00);
+ /* ENDPIXEL */
+ SETREG (0x85,0x00);
+ SETREG (0x86,0x00);
+ SETREG (0x87,0x00);
+
+ SETREG (0x88,0x00);
+ SETREG (0x89,0x65);
+ SETREG (0x8a,0x00);
+ SETREG (0x8b,0x00);
+ SETREG (0x8c,0x00);
+ SETREG (0x8d,0x00);
+ SETREG (0x8e,0x00);
+ SETREG (0x8f,0x00);
+ SETREG (0x90,0x00);
+ SETREG (0x91,0x00);
+ SETREG (0x92,0x00);
+ SETREG (0x93,0x00);
+ SETREG (0x94,0x14);
+ SETREG (0x95,0x30);
+ SETREG (0x96,0x00);
+ SETREG (0x97,0x90);
+ SETREG (0x98,0x01);
+ SETREG (0x99,0x1f);
+ SETREG (0x9a,0x00);
+ SETREG (0x9b,0x80);
+ SETREG (0x9c,0x80);
+ SETREG (0x9d,0x3f);
+ SETREG (0x9e,0x00);
+ SETREG (0x9f,0x00);
+ SETREG (0xa0,0x20);
+ SETREG (0xa1,0x30);
+ SETREG (0xa2,0x00);
+ SETREG (0xa3,0x20);
+ SETREG (0xa4,0x01);
+ SETREG (0xa5,0x00);
+ SETREG (0xa6,0x00);
+ SETREG (0xa7,0x08);
+ SETREG (0xa8,0x00);
+ SETREG (0xa9,0x08);
+ SETREG (0xaa,0x01);
+ SETREG (0xab,0x00);
+ SETREG (0xac,0x00);
+ SETREG (0xad,0x40);
+ SETREG (0xae,0x01);
+ SETREG (0xaf,0x00);
+ SETREG (0xb0,0x00);
+ SETREG (0xb1,0x40);
+ SETREG (0xb2,0x00);
+ SETREG (0xb3,0x09);
+ SETREG (0xb4,0x5b);
+ SETREG (0xb5,0x00);
+ SETREG (0xb6,0x10);
+ SETREG (0xb7,0x3f);
+ SETREG (0xb8,0x00);
+ SETREG (0xbb,0x00);
+ SETREG (0xbc,0xff);
+ SETREG (0xbd,0x00);
+ SETREG (0xbe,0x07);
+ SETREG (0xc3,0x00);
+ SETREG (0xc4,0x00);
+
+ /* gamma
+ SETREG (0xc5,0x00);
+ SETREG (0xc6,0x00);
+ SETREG (0xc7,0x00);
+ SETREG (0xc8,0x00);
+ SETREG (0xc9,0x00);
+ SETREG (0xca,0x00);
+ SETREG (0xcb,0x00);
+ SETREG (0xcc,0x00);
+ SETREG (0xcd,0x00);
+ SETREG (0xce,0x00);
+ */
+
+ /* memory layout
+ SETREG (0xd0,0x0a);
+ SETREG (0xd1,0x1f);
+ SETREG (0xd2,0x34); */
+ SETREG (0xd3,0x00);
+ SETREG (0xd4,0x00);
+ SETREG (0xd5,0x00);
+ SETREG (0xd6,0x00);
+ SETREG (0xd7,0x00);
+ SETREG (0xd8,0x00);
+ SETREG (0xd9,0x00);
+
+ /* memory layout
+ SETREG (0xe0,0x00);
+ SETREG (0xe1,0x48);
+ SETREG (0xe2,0x15);
+ SETREG (0xe3,0x90);
+ SETREG (0xe4,0x15);
+ SETREG (0xe5,0x91);
+ SETREG (0xe6,0x2a);
+ SETREG (0xe7,0xd9);
+ SETREG (0xe8,0x2a);
+ SETREG (0xe9,0xad);
+ SETREG (0xea,0x40);
+ SETREG (0xeb,0x22);
+ SETREG (0xec,0x40);
+ SETREG (0xed,0x23);
+ SETREG (0xee,0x55);
+ SETREG (0xef,0x6b);
+ SETREG (0xf0,0x55);
+ SETREG (0xf1,0x6c);
+ SETREG (0xf2,0x6a);
+ SETREG (0xf3,0xb4);
+ SETREG (0xf4,0x6a);
+ SETREG (0xf5,0xb5);
+ SETREG (0xf6,0x7f);
+ SETREG (0xf7,0xfd);*/
+
+ SETREG (0xf8,0x01); /* other value is 0x05 */
+ SETREG (0xf9,0x00);
+ SETREG (0xfa,0x00);
+ SETREG (0xfb,0x00);
+ SETREG (0xfc,0x00);
+ SETREG (0xff,0x00);
+
+ /* fine tune upon device description */
+ dev->reg[reg_0x05].value &= ~REG05_DPIHW;
+ switch (dev->sensor.optical_res)
+ {
+ case 600:
+ dev->reg[reg_0x05].value |= REG05_DPIHW_600;
+ break;
+ case 1200:
+ dev->reg[reg_0x05].value |= REG05_DPIHW_1200;
+ break;
+ case 2400:
+ dev->reg[reg_0x05].value |= REG05_DPIHW_2400;
+ break;
+ case 4800:
+ dev->reg[reg_0x05].value |= REG05_DPIHW_4800;
+ break;
+ }
+
+ /* initalize calibration reg */
+ memcpy (dev->calib_reg, dev->reg,
+ GENESYS_GL124_MAX_REGS * sizeof (Genesys_Register_Set));
+
+ DBGCOMPLETED;
+}
+
+/**@brief send slope table for motor movement
+ * Send slope_table in machine byte order
+ * @param dev device to send slope table
+ * @param table_nr index of the slope table in ASIC memory
+ * Must be in the [0-4] range.
+ * @param slope_table pointer to 16 bit values array of the slope table
+ * @param steps number of elemnts in the slope table
+ */
+static SANE_Status
+gl124_send_slope_table (Genesys_Device * dev, int table_nr,
+ uint16_t * slope_table, int steps)
+{
+ SANE_Status status;
+ uint8_t *table;
+ int i;
+ char msg[10000];
+
+ DBG (DBG_proc, "%s (table_nr = %d, steps = %d)\n", __FUNCTION__,
+ table_nr, steps);
+
+ /* sanity check */
+ if(table_nr<0 || table_nr>4)
+ {
+ DBG (DBG_error, "%s: invalid table number %d!\n", __FUNCTION__, table_nr);
+ return SANE_STATUS_INVAL;
+ }
+
+ table = (uint8_t *) malloc (steps * 2);
+ for (i = 0; i < steps; i++)
+ {
+ table[i * 2] = slope_table[i] & 0xff;
+ table[i * 2 + 1] = slope_table[i] >> 8;
+ }
+
+ if (DBG_LEVEL >= DBG_io)
+ {
+ sprintf (msg, "write slope %d (%d)=", table_nr, steps);
+ for (i = 0; i < steps; i++)
+ {
+ sprintf (msg+strlen(msg), ",%d", slope_table[i]);
+ }
+ DBG (DBG_io, "%s: %s\n", __FUNCTION__, msg);
+ }
+
+ /* slope table addresses are fixed */
+ status =
+ sanei_genesys_write_ahb (dev->dn, dev->usb_mode, 0x10000000 + 0x4000 * table_nr, steps * 2, table);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (DBG_error,
+ "%s: write to AHB failed writing slope table %d (%s)\n",
+ __FUNCTION__, table_nr, sane_strstatus (status));
+ }
+
+ free (table);
+ DBGCOMPLETED;
+ return status;
+}
+
+/**
+ * Set register values of 'special' type frontend
+ * */
+static SANE_Status
+gl124_set_ti_fe (Genesys_Device * dev, uint8_t set)
+{
+ SANE_Status status = SANE_STATUS_GOOD;
+ int i;
+ uint16_t val;
+
+ DBGSTART;
+ if (set == AFE_INIT)
+ {
+ DBG (DBG_proc, "%s: setting DAC %u\n", __FUNCTION__,
+ dev->model->dac_type);
+
+ /* sets to default values */
+ sanei_genesys_init_fe (dev);
+ }
+
+ /* start writing to DAC */
+ status = sanei_genesys_fe_write_data (dev, 0x00, 0x80);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (DBG_error, "%s: failed to write reg0: %s\n", __FUNCTION__,
+ sane_strstatus (status));
+ return status;
+ }
+
+ /* write values to analog frontend */
+ for (i = 1; i < 4; i++)
+ {
+ val = dev->frontend.reg[i];
+ status = sanei_genesys_fe_write_data (dev, i, val);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (DBG_error,
+ "%s: failed to write reg %d: %s\n", __FUNCTION__, i,
+ sane_strstatus (status));
+ return status;
+ }
+ }
+
+ status = sanei_genesys_fe_write_data (dev, 0x04, 0x00);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (DBG_error, "%s: failed to write reg4: %s\n", __FUNCTION__,
+ sane_strstatus (status));
+ return status;
+ }
+
+ /* these are not really sign */
+ for (i = 0; i < 3; i++)
+ {
+ val = dev->frontend.sign[i];
+ status = sanei_genesys_fe_write_data (dev, 0x05 + i, val);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (DBG_error,
+ "%s: failed to write reg %d: %s\n", __FUNCTION__, i+5,
+ sane_strstatus (status));
+ return status;
+ }
+ }
+
+ /* close writing to DAC */
+ status = sanei_genesys_fe_write_data (dev, 0x00, 0x11);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (DBG_error, "%s: failed to write reg0: %s\n", __FUNCTION__,
+ sane_strstatus (status));
+ return status;
+ }
+
+ DBGCOMPLETED;
+
+ return status;
+}
+
+
+/* Set values of analog frontend */
+static SANE_Status
+gl124_set_fe (Genesys_Device * dev, uint8_t set)
+{
+ SANE_Status status;
+ uint8_t val;
+
+ DBG (DBG_proc, "gl124_set_fe (%s)\n",
+ set == AFE_INIT ? "init" : set == AFE_SET ? "set" : set ==
+ AFE_POWER_SAVE ? "powersave" : "huh?");
+
+ if (set == AFE_INIT)
+ {
+ DBG (DBG_proc, "gl124_set_fe(): setting DAC %u\n",
+ dev->model->dac_type);
+ sanei_genesys_init_fe (dev);
+ }
+
+ RIE (sanei_genesys_read_register (dev, REG0A, &val));
+
+ if(dev->usb_mode<0)
+ {
+ val=3<<REG0AS_SIFSEL;
+ }
+
+ /* route to correct analog FE */
+ switch ((val & REG0A_SIFSEL)>>REG0AS_SIFSEL)
+ {
+ case 3:
+ status=gl124_set_ti_fe (dev, set);
+ break;
+ case 0:
+ case 1:
+ case 2:
+ default:
+ DBG (DBG_error, "%s: unsupported analog FE 0x%02x\n",__FUNCTION__,val);
+ status=SANE_STATUS_INVAL;
+ break;
+ }
+
+ DBGCOMPLETED;
+ return status;
+}
+
+
+/**@brief compute exposure to use
+ * compute the sensor exposure based on target resolution
+ * @param dev pointer to device description
+ * @param xres sensor's required resolution
+ * @param half_ccd flag for half ccd mode
+ */
+static int gl124_compute_exposure(Genesys_Device *dev, int xres, int half_ccd)
+{
+ Sensor_Profile *sensor;
+
+ sensor=get_sensor_profile(dev->model->ccd_type, xres, half_ccd);
+ return sensor->exposure;
+}
+
+/**@brief compute motor step type to use
+ * compute the step type (full, half, quarter, ...) to use based
+ * on target resolution
+ * @param dev device description
+ * @param exposure sensor exposure
+ * @return 0 for full step
+ * 1 for half step
+ * 2 for quarter step
+ * 3 for eighth step
+ */
+static int gl124_compute_step_type(Genesys_Device *dev, int exposure)
+{
+Motor_Profile *profile;
+
+ profile=get_motor_profile(dev->model->motor_type,exposure);
+ return profile->step_type;
+}
+
+
+static SANE_Status
+gl124_init_motor_regs_scan (Genesys_Device * dev,
+ Genesys_Register_Set * reg,
+ unsigned int scan_exposure_time,
+ float scan_yres,
+ int scan_step_type,
+ unsigned int scan_lines,
+ unsigned int scan_dummy,
+ unsigned int feed_steps,
+ int scan_mode,
+ unsigned int flags)
+{
+ SANE_Status status;
+ int use_fast_fed;
+ unsigned int lincnt, fast_dpi;
+ uint16_t scan_table[SLOPE_TABLE_SIZE];
+ uint16_t fast_table[SLOPE_TABLE_SIZE];
+ int scan_steps,fast_steps,factor;
+ unsigned int feedl,dist;
+ Genesys_Register_Set *r;
+ uint32_t z1, z2;
+ float yres;
+ int min_speed;
+ unsigned int linesel;
+
+ DBGSTART;
+ DBG (DBG_info, "gl124_init_motor_regs_scan : scan_exposure_time=%d, "
+ "scan_yres=%g, scan_step_type=%d, scan_lines=%d, scan_dummy=%d, "
+ "feed_steps=%d, scan_mode=%d, flags=%x\n",
+ scan_exposure_time,
+ scan_yres,
+ scan_step_type,
+ scan_lines, scan_dummy, feed_steps, scan_mode, flags);
+
+ /* we never use fast fed since we do manual feed for the scans */
+ use_fast_fed=0;
+ factor=1;
+
+ /* enforce motor minimal scan speed
+ * @TODO extend motor struct for this value */
+ if (scan_mode == SCAN_MODE_COLOR)
+ {
+ min_speed = 900;
+ }
+ else
+ {
+ min_speed = 600;
+ if(dev->model->ccd_type==MOTOR_CANONLIDE110)
+ {
+ min_speed = 300;
+ }
+ }
+
+ /* compute min_speed and linesel */
+ if(scan_yres<min_speed)
+ {
+ yres=min_speed;
+ linesel=yres/scan_yres-1;
+ }
+ else
+ {
+ yres=scan_yres;
+ linesel=0;
+ }
+
+ DBG (DBG_io2, "%s: linesel=%d\n", __FUNCTION__, linesel);
+
+ lincnt=scan_lines*(linesel+1);
+ sanei_genesys_set_triple(reg,REG_LINCNT,lincnt);
+ DBG (DBG_io, "%s: lincnt=%d\n", __FUNCTION__, lincnt);
+
+ /* compute register 02 value */
+ r = sanei_genesys_get_address (reg, REG02);
+ r->value = REG02_NOTHOME;
+ r->value |= REG02_MTRPWR;
+
+ if (use_fast_fed)
+ r->value |= REG02_FASTFED;
+ else
+ r->value &= ~REG02_FASTFED;
+
+ if (flags & MOTOR_FLAG_AUTO_GO_HOME)
+ r->value |= REG02_AGOHOME;
+
+ if ((flags & MOTOR_FLAG_DISABLE_BUFFER_FULL_MOVE)
+ ||(yres>=dev->sensor.optical_res))
+ r->value |= REG02_ACDCDIS;
+
+ /* SCANFED */
+ sanei_genesys_set_double(reg,REG_SCANFED,4);
+
+ /* scan and backtracking slope table */
+ gl124_slope_table(scan_table,
+ &scan_steps,
+ yres,
+ scan_exposure_time,
+ dev->motor.base_ydpi,
+ scan_step_type,
+ factor,
+ dev->model->motor_type);
+ RIE(gl124_send_slope_table (dev, SCAN_TABLE, scan_table, scan_steps));
+ RIE(gl124_send_slope_table (dev, BACKTRACK_TABLE, scan_table, scan_steps));
+
+ /* STEPNO */
+ sanei_genesys_set_double(reg,REG_STEPNO,scan_steps);
+
+ /* fast table */
+ fast_dpi=yres;
+ if (scan_mode != SCAN_MODE_COLOR)
+ {
+ fast_dpi*=3;
+ }
+ gl124_slope_table(fast_table,
+ &fast_steps,
+ fast_dpi,
+ scan_exposure_time,
+ dev->motor.base_ydpi,
+ scan_step_type,
+ factor,
+ dev->model->motor_type);
+ RIE(gl124_send_slope_table (dev, STOP_TABLE, fast_table, fast_steps));
+ RIE(gl124_send_slope_table (dev, FAST_TABLE, fast_table, fast_steps));
+
+ /* FASTNO */
+ sanei_genesys_set_double(reg,REG_FASTNO,fast_steps);
+
+ /* FSHDEC */
+ sanei_genesys_set_double(reg,REG_FSHDEC,fast_steps);
+
+ /* FMOVNO */
+ sanei_genesys_set_double(reg,REG_FMOVNO,fast_steps);
+
+ /* substract acceleration distance from feedl */
+ feedl=feed_steps;
+ feedl<<=scan_step_type;
+
+ dist = scan_steps;
+ if (flags & MOTOR_FLAG_FEED)
+ dist *=2;
+ if (use_fast_fed)
+ {
+ dist += fast_steps*2;
+ }
+ DBG (DBG_io2, "%s: acceleration distance=%d\n", __FUNCTION__, dist);
+
+ /* get sure we don't use insane value */
+ if(dist<feedl)
+ feedl -= dist;
+ else
+ feedl = 0;
+
+ sanei_genesys_set_triple(reg,REG_FEEDL,feedl);
+ DBG (DBG_io, "%s: feedl=%d\n", __FUNCTION__, feedl);
+
+ /* doesn't seem to matter that much */
+ sanei_genesys_calculate_zmode2 (use_fast_fed,
+ scan_exposure_time,
+ scan_table,
+ scan_steps,
+ feedl,
+ scan_steps,
+ &z1,
+ &z2);
+
+ sanei_genesys_set_triple(reg,REG_Z1MOD,z1);
+ DBG (DBG_info, "gl124_init_motor_regs_scan: z1 = %d\n", z1);
+
+ sanei_genesys_set_triple(reg,REG_Z2MOD,z2);
+ DBG (DBG_info, "gl124_init_motor_regs_scan: z2 = %d\n", z2);
+
+ /* LINESEL */
+ r = sanei_genesys_get_address (reg, REG1D);
+ r->value = (r->value & ~REG1D_LINESEL) | linesel;
+
+ r = sanei_genesys_get_address (reg, REGA0);
+ r->value = (scan_step_type << REGA0S_STEPSEL) | (scan_step_type << REGA0S_FSTPSEL);
+
+ /* FMOVDEC */
+ sanei_genesys_set_double(reg,REG_FMOVDEC,fast_steps);
+
+ DBGCOMPLETED;
+ return SANE_STATUS_GOOD;
+}
+
+
+/** @brief copy sensor specific settings
+ * Set up register set for the given sensor resolution.
+ * @param dev device to set up
+ * @param regs register set to modify
+ * @param dpi resolution of the sensor during scan
+ * @param half_ccd flag for half ccd mode
+ * */
+static void
+gl124_setup_sensor (Genesys_Device * dev, Genesys_Register_Set * regs, int dpi, int half_ccd)
+{
+ Genesys_Register_Set *r;
+ int i;
+ Sensor_Profile *sensor;
+ int dpihw;
+ uint32_t exp;
+
+ DBGSTART;
+
+ /* we start at 6, 0-5 is a 16 bits cache for exposure */
+ for (i = 0x06; i < 0x0e; i++)
+ {
+ r = sanei_genesys_get_address (regs, 0x10 + i);
+ if (r)
+ r->value = dev->sensor.regs_0x10_0x1d[i];
+ }
+
+ for (i = 0; i < 11; i++)
+ {
+ r = sanei_genesys_get_address (regs, 0x52 + i);
+ if (r)
+ r->value = dev->sensor.regs_0x52_0x5e[i];
+ }
+
+ /* set EXPDUMMY and CKxMAP */
+ dpihw=sanei_genesys_compute_dpihw(dev,dpi);
+ sensor=get_sensor_profile(dev->model->ccd_type, dpihw, half_ccd);
+
+ r = sanei_genesys_get_address (regs, 0x18);
+ if (r)
+ {
+ r->value = sensor->reg18;
+ }
+ r = sanei_genesys_get_address (regs, 0x20);
+ if (r)
+ {
+ r->value = sensor->reg20;
+ }
+ r = sanei_genesys_get_address (regs, 0x61);
+ if (r)
+ {
+ r->value = sensor->reg61;
+ }
+ r = sanei_genesys_get_address (regs, 0x98);
+ if (r)
+ {
+ r->value = sensor->reg98;
+ }
+
+ sanei_genesys_set_triple(regs,REG_SEGCNT,sensor->segcnt);
+ sanei_genesys_set_double(regs,REG_TG0CNT,sensor->tg0cnt);
+ sanei_genesys_set_double(regs,REG_EXPDMY,sensor->expdummy);
+
+ /* if no calibration has been done, set default values for exposures */
+ exp=dev->sensor.regs_0x10_0x1d[0]*256+dev->sensor.regs_0x10_0x1d[1];
+ if(exp==0)
+ {
+ exp=sensor->expr;
+ }
+ sanei_genesys_set_triple(regs,REG_EXPR,exp);
+
+ exp=dev->sensor.regs_0x10_0x1d[2]*256+dev->sensor.regs_0x10_0x1d[3];
+ if(exp==0)
+ {
+ exp=sensor->expg;
+ }
+ sanei_genesys_set_triple(regs,REG_EXPG,exp);
+
+ exp=dev->sensor.regs_0x10_0x1d[4]*256+dev->sensor.regs_0x10_0x1d[5];
+ if(exp==0)
+ {
+ exp=sensor->expb;
+ }
+ sanei_genesys_set_triple(regs,REG_EXPB,exp);
+
+ sanei_genesys_set_triple(regs,REG_CK1MAP,sensor->ck1map);
+ sanei_genesys_set_triple(regs,REG_CK3MAP,sensor->ck3map);
+ sanei_genesys_set_triple(regs,REG_CK4MAP,sensor->ck4map);
+
+ /* order of the sub-segments */
+ dev->order=sensor->order;
+
+ DBGCOMPLETED;
+}
+
+/** @brief setup optical related registers
+ * start and pixels are expressed in optical sensor resolution coordinate
+ * space.
+ * @param dev scanner device to use
+ * @param reg registers to set up
+ * @param exposure_time exposure time to use
+ * @param used_res scanning resolution used, may differ from
+ * scan's one
+ * @param start logical start pixel coordinate
+ * @param pixels logical number of pixels to use
+ * @param channels number of color channels (currently 1 or 3)
+ * @param depth bit depth of the scan (1, 8 or 16)
+ * @param half_ccd SANE_TRUE if sensor's timings are such that x coordinates
+ * must be halved
+ * @param color_filter color channel to use as gray data
+ * @param flags optical flags (@see )
+ * @return SANE_STATUS_GOOD if OK
+ */
+static SANE_Status
+gl124_init_optical_regs_scan (Genesys_Device * dev,
+ Genesys_Register_Set * reg,
+ unsigned int exposure_time,
+ int used_res,
+ unsigned int start,
+ unsigned int pixels,
+ int channels,
+ int depth,
+ SANE_Bool half_ccd,
+ int color_filter,
+ int flags)
+{
+ unsigned int words_per_line, segcnt;
+ unsigned int startx, endx, used_pixels, segnb;
+ unsigned int dpiset, cksel, dpihw, factor;
+ unsigned int bytes;
+ Genesys_Register_Set *r;
+ SANE_Status status;
+ uint32_t expmax, exp;
+
+ DBG (DBG_proc, "%s : exposure_time=%d, "
+ "used_res=%d, start=%d, pixels=%d, channels=%d, depth=%d, "
+ "half_ccd=%d, flags=%x\n", __FUNCTION__, exposure_time,
+ used_res, start, pixels, channels, depth, half_ccd, flags);
+
+ /* resolution is divided according to CKSEL */
+ r = sanei_genesys_get_address (reg, REG18);
+ cksel= (r->value & REG18_CKSEL)+1;
+ DBG (DBG_io2, "%s: cksel=%d\n", __FUNCTION__, cksel);
+
+ /* to manage high resolution device while keeping good
+ * low resolution scanning speed, we make hardware dpi vary */
+ dpihw=sanei_genesys_compute_dpihw(dev, used_res * cksel);
+ factor=dev->sensor.optical_res/dpihw;
+ DBG (DBG_io2, "%s: dpihw=%d (factor=%d)\n", __FUNCTION__, dpihw, factor);
+
+ /* sensor parameters */
+ gl124_setup_sensor (dev, reg, dpihw, half_ccd);
+ dpiset = used_res * cksel;
+
+ /* start and end coordinate in optical dpi coordinates */
+ /* startx = start/cksel + dev->sensor.dummy_pixel; XXX STEF XXX */
+ startx = start/cksel;
+ used_pixels=pixels/cksel;
+ endx = startx + used_pixels;
+
+ /* pixel coordinate factor correction when used dpihw is not maximal one */
+ startx/=factor;
+ endx/=factor;
+ used_pixels=endx-startx;
+
+ status = gl124_set_fe (dev, AFE_SET);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (DBG_error, "%s: failed to set frontend: %s\n", __FUNCTION__,
+ sane_strstatus (status));
+ return status;
+ }
+
+ /* enable shading */
+ r = sanei_genesys_get_address (reg, REG01);
+ r->value &= ~REG01_SCAN;
+ if ((flags & OPTICAL_FLAG_DISABLE_SHADING) ||
+ (dev->model->flags & GENESYS_FLAG_NO_CALIBRATION))
+ {
+ r->value &= ~REG01_DVDSET;
+ }
+ else
+ {
+ r->value |= REG01_DVDSET;
+ }
+ r->value &= ~REG01_SCAN;
+
+ r = sanei_genesys_get_address (reg, REG03);
+ r->value &= ~REG03_AVEENB;
+
+ if (flags & OPTICAL_FLAG_DISABLE_LAMP)
+ r->value &= ~REG03_LAMPPWR;
+ else
+ r->value |= REG03_LAMPPWR;
+
+ /* BW threshold */
+ RIE (sanei_genesys_write_register (dev, REG114, dev->settings.threshold));
+ RIE (sanei_genesys_write_register (dev, REG115, dev->settings.threshold));
+
+ /* monochrome / color scan */
+ r = sanei_genesys_get_address (reg, REG04);
+ switch (depth)
+ {
+ case 1:
+ r->value &= ~REG04_BITSET;
+ r->value |= REG04_LINEART;
+ break;
+ case 8:
+ r->value &= ~(REG04_LINEART | REG04_BITSET);
+ break;
+ case 16:
+ r->value &= ~REG04_LINEART;
+ r->value |= REG04_BITSET;
+ break;
+ }
+
+ r->value &= ~REG04_FILTER;
+ if (channels == 1)
+ {
+ switch (color_filter)
+ {
+ case 0:
+ r->value |= 0x10; /* red filter */
+ break;
+ case 2:
+ r->value |= 0x30; /* blue filter */
+ break;
+ default:
+ r->value |= 0x20; /* green filter */
+ break;
+ }
+ }
+
+ /* register 05 */
+ r = sanei_genesys_get_address (reg, REG05);
+
+ /* set up dpihw */
+ r->value &= ~REG05_DPIHW;
+ switch(dpihw)
+ {
+ case 600:
+ r->value |= REG05_DPIHW_600;
+ break;
+ case 1200:
+ r->value |= REG05_DPIHW_1200;
+ break;
+ case 2400:
+ r->value |= REG05_DPIHW_2400;
+ break;
+ case 4800:
+ r->value |= REG05_DPIHW_4800;
+ break;
+ }
+
+ /* enable gamma tables */
+ if (flags & OPTICAL_FLAG_DISABLE_GAMMA)
+ r->value &= ~REG05_GMMENB;
+ else
+ r->value |= REG05_GMMENB;
+
+ if(half_ccd)
+ {
+ sanei_genesys_set_double(reg,REG_DPISET,dpiset*2);
+ DBG (DBG_io2, "%s: dpiset used=%d\n", __FUNCTION__, dpiset*2);
+ }
+ else
+ {
+ sanei_genesys_set_double(reg,REG_DPISET,dpiset);
+ DBG (DBG_io2, "%s: dpiset used=%d\n", __FUNCTION__, dpiset);
+ }
+
+ r = sanei_genesys_get_address (reg, REG06);
+ r->value |= REG06_GAIN4;
+
+ /* CIS scanners can do true gray by setting LEDADD */
+ /* we set up LEDADD only when asked */
+ if (dev->model->is_cis == SANE_TRUE)
+ {
+ r = sanei_genesys_get_address (reg, REG60);
+ r->value &= ~REG60_LEDADD;
+ if (channels == 1 && (flags & OPTICAL_FLAG_ENABLE_LEDADD))
+ {
+ r->value |= REG60_LEDADD;
+ sanei_genesys_get_triple(reg,REG_EXPR,&expmax);
+ sanei_genesys_get_triple(reg,REG_EXPG,&exp);
+ if(exp>expmax)
+ {
+ expmax=exp;
+ }
+ sanei_genesys_get_triple(reg,REG_EXPB,&exp);
+ if(exp>expmax)
+ {
+ expmax=exp;
+ }
+ sanei_genesys_set_triple(dev->reg,REG_EXPR,expmax);
+ sanei_genesys_set_triple(dev->reg,REG_EXPG,expmax);
+ sanei_genesys_set_triple(dev->reg,REG_EXPB,expmax);
+ }
+ /* RGB weighting, REG_TRUER,G and B are to be set */
+ r = sanei_genesys_get_address (reg, 0x01);
+ r->value &= ~REG01_TRUEGRAY;
+ if (channels == 1 && (flags & OPTICAL_FLAG_ENABLE_LEDADD))
+ {
+ r->value |= REG01_TRUEGRAY;
+ sanei_genesys_write_register (dev, REG_TRUER, 0x80);
+ sanei_genesys_write_register (dev, REG_TRUEG, 0x80);
+ sanei_genesys_write_register (dev, REG_TRUEB, 0x80);
+ }
+ }
+
+ /* segment number */
+ r = sanei_genesys_get_address (reg, 0x98);
+ segnb = r->value & 0x0f;
+
+ sanei_genesys_set_triple(reg,REG_STRPIXEL,startx/segnb);
+ DBG (DBG_io2, "%s: strpixel used=%d\n", __FUNCTION__, startx/segnb);
+ sanei_genesys_get_triple(reg,REG_SEGCNT,&segcnt);
+ if(endx/segnb==segcnt)
+ {
+ endx=0;
+ }
+ sanei_genesys_set_triple(reg,REG_ENDPIXEL,endx/segnb);
+ DBG (DBG_io2, "%s: endpixel used=%d\n", __FUNCTION__, endx/segnb);
+
+ /* words(16bit) before gamma, conversion to 8 bit or lineart */
+ words_per_line = (used_pixels * dpiset) / dpihw;
+ bytes = depth / 8;
+ if (depth == 1)
+ {
+ words_per_line = (words_per_line >> 3) + ((words_per_line & 7) ? 1 : 0);
+ }
+ else
+ {
+ words_per_line *= bytes;
+ }
+
+ dev->bpl = words_per_line;
+ dev->cur = 0;
+ dev->skip = 0;
+ dev->len = dev->bpl/segnb;
+ dev->dist = dev->bpl/segnb;
+ dev->segnb = segnb;
+ dev->line_count = 0;
+ dev->line_interp = 0;
+
+ DBG (DBG_io2, "%s: used_pixels =%d\n", __FUNCTION__, used_pixels);
+ DBG (DBG_io2, "%s: pixels =%d\n", __FUNCTION__, pixels);
+ DBG (DBG_io2, "%s: depth =%d\n", __FUNCTION__, depth);
+ DBG (DBG_io2, "%s: dev->bpl =%lu\n", __FUNCTION__, (unsigned long)dev->bpl);
+ DBG (DBG_io2, "%s: dev->len =%lu\n", __FUNCTION__, (unsigned long)dev->len);
+ DBG (DBG_io2, "%s: dev->dist =%lu\n", __FUNCTION__, (unsigned long)dev->dist);
+ DBG (DBG_io2, "%s: dev->line_interp=%lu\n", __FUNCTION__, (unsigned long)dev->line_interp);
+
+ words_per_line *= channels;
+ dev->wpl = words_per_line;
+
+ /* allocate buffer for odd/even pixels handling */
+ if(dev->oe_buffer.buffer!=NULL)
+ {
+ sanei_genesys_buffer_free (&(dev->oe_buffer));
+ }
+ RIE (sanei_genesys_buffer_alloc (&(dev->oe_buffer), dev->wpl));
+
+ /* MAXWD is expressed in 2 words unit */
+ sanei_genesys_set_triple(reg,REG_MAXWD,(words_per_line));
+ DBG (DBG_io2, "%s: words_per_line used=%d\n", __FUNCTION__, words_per_line);
+
+ sanei_genesys_set_triple(reg,REG_LPERIOD,exposure_time);
+ DBG (DBG_io2, "%s: exposure_time used=%d\n", __FUNCTION__, exposure_time);
+
+ sanei_genesys_set_double(reg,REG_DUMMY,dev->sensor.dummy_pixel);
+
+ DBGCOMPLETED;
+ return SANE_STATUS_GOOD;
+}
+
+/* set up registers for an actual scan
+ *
+ * this function sets up the scanner to scan in normal or single line mode
+ */
+#ifndef UNIT_TESTING
+static
+#endif
+ SANE_Status
+gl124_init_scan_regs (Genesys_Device * dev,
+ Genesys_Register_Set * reg,
+ float xres, /*dpi */
+ float yres, /*dpi */
+ float startx, /*optical_res, from dummy_pixel+1 */
+ float starty, /*base_ydpi, from home! */
+ float pixels,
+ float lines,
+ unsigned int depth,
+ unsigned int channels,
+ int color_filter,
+ unsigned int flags)
+{
+ int used_res;
+ int start, used_pixels;
+ int bytes_per_line;
+ int move;
+ unsigned int lincnt;
+ unsigned int oflags, mflags; /**> optical and motor flags */
+ int exposure_time;
+ int stagger;
+
+ int dummy = 0;
+ int slope_dpi = 0;
+ int scan_step_type = 1;
+ int max_shift;
+ size_t requested_buffer_size, read_buffer_size;
+
+ SANE_Bool half_ccd; /* false: full CCD res is used, true, half max CCD res is used */
+ int optical_res;
+ SANE_Status status;
+
+ DBG (DBG_info,
+ "gl124_init_scan_regs settings:\n"
+ "Resolution : %gDPI/%gDPI\n"
+ "Lines : %g\n"
+ "PPL : %g\n"
+ "Startpos : %g/%g\n"
+ "Depth/Channels: %u/%u\n"
+ "Flags : %x\n\n",
+ xres, yres, lines, pixels, startx, starty, depth, channels, flags);
+
+ half_ccd=compute_half_ccd(dev->model, xres);
+
+ /* optical_res */
+ optical_res = dev->sensor.optical_res;
+ if (half_ccd)
+ optical_res /= 2;
+ DBG (DBG_info, "%s: optical_res=%d\n", __FUNCTION__, optical_res);
+
+ /* stagger */
+ if ((!half_ccd) && (dev->model->flags & GENESYS_FLAG_STAGGERED_LINE))
+ stagger = (4 * yres) / dev->motor.base_ydpi;
+ else
+ stagger = 0;
+ DBG (DBG_info, "gl124_init_scan_regs : stagger=%d lines\n", stagger);
+
+ /** @brief compute used resolution */
+ if (flags & SCAN_FLAG_USE_OPTICAL_RES)
+ {
+ used_res = optical_res;
+ }
+ else
+ {
+ /* resolution is choosen from a fixed list and can be used directly,
+ * unless we have ydpi higher than sensor's maximum one */
+ if(xres>optical_res)
+ used_res=optical_res;
+ else
+ used_res = xres;
+ }
+
+ /* compute scan parameters values */
+ /* pixels are allways given at full optical resolution */
+ /* use detected left margin and fixed value */
+ /* start */
+ /* add x coordinates */
+ start = startx;
+
+ if (stagger > 0)
+ start |= 1;
+
+ /* compute correct pixels number */
+ used_pixels = (pixels * optical_res) / xres;
+ DBG (DBG_info, "%s: used_pixels=%d\n", __FUNCTION__, used_pixels);
+
+ /* round up pixels number if needed */
+ if (used_pixels * xres < pixels * optical_res)
+ used_pixels++;
+
+ /* we want even number of pixels here */
+ if(used_pixels & 1)
+ used_pixels++;
+
+ /* slope_dpi */
+ /* cis color scan is effectively a gray scan with 3 gray lines per color line and a FILTER of 0 */
+ if (dev->model->is_cis)
+ slope_dpi = yres * channels;
+ else
+ slope_dpi = yres;
+
+ /* scan_step_type */
+ if(flags & SCAN_FLAG_FEEDING)
+ {
+ scan_step_type=0;
+ exposure_time=MOVE_EXPOSURE;
+ }
+ else
+ {
+ exposure_time = gl124_compute_exposure (dev, used_res, half_ccd);
+ scan_step_type = gl124_compute_step_type(dev, exposure_time);
+ }
+
+ DBG (DBG_info, "gl124_init_scan_regs : exposure_time=%d pixels\n", exposure_time);
+ DBG (DBG_info, "gl124_init_scan_regs : scan_step_type=%d\n", scan_step_type);
+
+ /*** optical parameters ***/
+ /* in case of dynamic lineart, we use an internal 8 bit gray scan
+ * to generate 1 lineart data */
+ if ((flags & SCAN_FLAG_DYNAMIC_LINEART)
+ && (dev->settings.scan_mode == SCAN_MODE_LINEART))
+ {
+ depth = 8;
+ }
+
+ /* we enable true gray for cis scanners only, and just when doing
+ * scan since color calibration is OK for this mode
+ */
+ oflags = 0;
+ if (flags & SCAN_FLAG_DISABLE_SHADING)
+ oflags |= OPTICAL_FLAG_DISABLE_SHADING;
+ if (flags & SCAN_FLAG_DISABLE_GAMMA)
+ oflags |= OPTICAL_FLAG_DISABLE_GAMMA;
+ if (flags & SCAN_FLAG_DISABLE_LAMP)
+ oflags |= OPTICAL_FLAG_DISABLE_LAMP;
+ if (flags & SCAN_FLAG_CALIBRATION)
+ oflags |= OPTICAL_FLAG_DISABLE_DOUBLE;
+
+ if (dev->model->is_cis && dev->settings.true_gray)
+ {
+ oflags |= OPTICAL_FLAG_ENABLE_LEDADD;
+ }
+
+ /* now _LOGICAL_ optical values used are known, setup registers */
+ status = gl124_init_optical_regs_scan (dev,
+ reg,
+ exposure_time,
+ used_res,
+ start,
+ used_pixels,
+ channels,
+ depth,
+ half_ccd,
+ color_filter,
+ oflags);
+ if (status != SANE_STATUS_GOOD)
+ return status;
+
+ /*** motor parameters ***/
+
+ /* max_shift */
+ max_shift=sanei_genesys_compute_max_shift(dev,channels,yres,flags);
+
+ /* lines to scan */
+ lincnt = lines + max_shift + stagger;
+
+ /* add tl_y to base movement */
+ move = starty;
+ DBG (DBG_info, "gl124_init_scan_regs: move=%d steps\n", move);
+
+ mflags=0;
+ if(flags & SCAN_FLAG_DISABLE_BUFFER_FULL_MOVE)
+ mflags|=MOTOR_FLAG_DISABLE_BUFFER_FULL_MOVE;
+ if(flags & SCAN_FLAG_FEEDING)
+ mflags|=MOTOR_FLAG_FEED;
+
+ status = gl124_init_motor_regs_scan (dev,
+ reg,
+ exposure_time,
+ slope_dpi,
+ scan_step_type,
+ dev->model->is_cis ? lincnt * channels : lincnt,
+ dummy,
+ move,
+ dev->settings.scan_mode,
+ mflags);
+ if (status != SANE_STATUS_GOOD)
+ return status;
+
+ /*** prepares data reordering ***/
+
+ /* words_per_line */
+ bytes_per_line = (used_pixels * used_res) / optical_res;
+ bytes_per_line = (bytes_per_line * channels * depth) / 8;
+
+ /* since we don't have sheetfed scanners to handle,
+ * use huge read buffer */
+ /* TODO find the best size according to settings */
+ requested_buffer_size = 16 * bytes_per_line;
+
+ read_buffer_size =
+ 2 * requested_buffer_size +
+ ((max_shift + stagger) * used_pixels * channels * depth) / 8;
+
+ RIE (sanei_genesys_buffer_free (&(dev->read_buffer)));
+ RIE (sanei_genesys_buffer_alloc (&(dev->read_buffer), read_buffer_size));
+
+ RIE (sanei_genesys_buffer_free (&(dev->lines_buffer)));
+ RIE (sanei_genesys_buffer_alloc (&(dev->lines_buffer), read_buffer_size));
+
+ RIE (sanei_genesys_buffer_free (&(dev->shrink_buffer)));
+ RIE (sanei_genesys_buffer_alloc (&(dev->shrink_buffer),
+ requested_buffer_size));
+
+ RIE (sanei_genesys_buffer_free (&(dev->out_buffer)));
+ RIE (sanei_genesys_buffer_alloc (&(dev->out_buffer),
+ (8 * dev->settings.pixels * channels *
+ depth) / 8));
+
+
+ dev->read_bytes_left = bytes_per_line * lincnt;
+
+ DBG (DBG_info,
+ "gl124_init_scan_regs: physical bytes to read = %lu\n",
+ (u_long) dev->read_bytes_left);
+ dev->read_active = SANE_TRUE;
+
+
+ dev->current_setup.pixels = (used_pixels * used_res) / optical_res;
+ DBG (DBG_info, "%s: current_setup.pixels=%d\n", __FUNCTION__, dev->current_setup.pixels);
+ dev->current_setup.lines = lincnt;
+ dev->current_setup.depth = depth;
+ dev->current_setup.channels = channels;
+ dev->current_setup.exposure_time = exposure_time;
+ dev->current_setup.xres = used_res;
+ dev->current_setup.yres = yres;
+ dev->current_setup.half_ccd = half_ccd;
+ dev->current_setup.stagger = stagger;
+ dev->current_setup.max_shift = max_shift + stagger;
+
+ dev->total_bytes_read = 0;
+ if (depth == 1)
+ dev->total_bytes_to_read =
+ ((dev->settings.pixels * dev->settings.lines) / 8 +
+ (((dev->settings.pixels * dev->settings.lines) % 8) ? 1 : 0)) *
+ channels;
+ else
+ dev->total_bytes_to_read =
+ dev->settings.pixels * dev->settings.lines * channels * (depth / 8);
+
+ DBG (DBG_info, "gl124_init_scan_regs: total bytes to send = %lu\n",
+ (u_long) dev->total_bytes_to_read);
+
+ DBGCOMPLETED;
+ return SANE_STATUS_GOOD;
+}
+
+static SANE_Status
+gl124_calculate_current_setup (Genesys_Device * dev)
+{
+ int channels;
+ int depth;
+ int start;
+
+ float xres; /*dpi */
+ float yres; /*dpi */
+ float startx; /*optical_res, from dummy_pixel+1 */
+ float pixels;
+ float lines;
+
+ int used_res;
+ int used_pixels;
+ unsigned int lincnt;
+ int exposure_time;
+ int stagger;
+ SANE_Bool half_ccd;
+
+ int max_shift, dpihw;
+ Sensor_Profile *sensor;
+
+ int optical_res;
+
+ DBG (DBG_info,
+ "gl124_calculate_current_setup settings:\n"
+ "Resolution: %ux%uDPI\n"
+ "Lines : %u\n"
+ "PPL : %u\n"
+ "Startpos : %.3f/%.3f\n"
+ "Scan mode : %d\n\n",
+ dev->settings.xres,
+ dev->settings.yres, dev->settings.lines, dev->settings.pixels,
+ dev->settings.tl_x, dev->settings.tl_y, dev->settings.scan_mode);
+
+ /* channels */
+ if (dev->settings.scan_mode == 4) /* single pass color */
+ channels = 3;
+ else
+ channels = 1;
+
+ /* depth */
+ depth = dev->settings.depth;
+ if (dev->settings.scan_mode == 0)
+ depth = 1;
+
+ /* start */
+ start = SANE_UNFIX (dev->model->x_offset);
+ start += dev->settings.tl_x;
+ start = (start * dev->sensor.optical_res) / MM_PER_INCH;
+
+
+ xres = dev->settings.xres;
+ yres = dev->settings.yres;
+ startx = start;
+ pixels = dev->settings.pixels;
+ lines = dev->settings.lines;
+
+ half_ccd=compute_half_ccd(dev->model, xres);
+
+ DBG (DBG_info,
+ "gl124_calculate_current_setup settings:\n"
+ "Resolution : %gDPI/%gDPI\n"
+ "Lines : %g\n"
+ "PPL : %g\n"
+ "Startpos : %g\n"
+ "Half ccd : %d\n"
+ "Depth/Channels: %u/%u\n\n",
+ xres, yres, lines, pixels, startx, depth, half_ccd, channels);
+
+ /* optical_res */
+ optical_res = dev->sensor.optical_res;
+
+ if(xres<=optical_res)
+ used_res = xres;
+ else
+ used_res=optical_res;
+
+ /* compute scan parameters values */
+ /* pixels are allways given at half or full CCD optical resolution */
+ /* use detected left margin and fixed value */
+
+ /* compute correct pixels number */
+ used_pixels = (pixels * optical_res) / xres;
+ DBG (DBG_info, "%s: used_pixels=%d\n", __FUNCTION__, used_pixels);
+
+ /* exposure */
+ exposure_time = gl124_compute_exposure (dev, xres, half_ccd);
+ DBG (DBG_info, "%s : exposure_time=%d pixels\n", __FUNCTION__, exposure_time);
+
+ /* max_shift */
+ max_shift=sanei_genesys_compute_max_shift(dev,channels,yres,0);
+
+ /* compute hw dpi for sensor */
+ dpihw=sanei_genesys_compute_dpihw(dev,used_res);
+
+ sensor=get_sensor_profile(dev->model->ccd_type, dpihw, half_ccd);
+ dev->segnb=sensor->reg98 & 0x0f;
+
+ /* stagger */
+ if ((!half_ccd) && (dev->model->flags & GENESYS_FLAG_STAGGERED_LINE))
+ stagger = (4 * yres) / dev->motor.base_ydpi;
+ else
+ stagger = 0;
+ DBG (DBG_info, "%s: stagger=%d lines\n", __FUNCTION__, stagger);
+
+ /* lincnt */
+ lincnt = lines + max_shift + stagger;
+
+ dev->current_setup.pixels = (used_pixels * used_res) / optical_res;
+ DBG (DBG_info, "%s: current_setup.pixels=%d\n", __FUNCTION__, dev->current_setup.pixels);
+ dev->current_setup.lines = lincnt;
+ dev->current_setup.depth = depth;
+ dev->current_setup.channels = channels;
+ dev->current_setup.exposure_time = exposure_time;
+ dev->current_setup.xres = used_res;
+ dev->current_setup.yres = yres;
+ dev->current_setup.half_ccd = half_ccd;
+ dev->current_setup.stagger = stagger;
+ dev->current_setup.max_shift = max_shift + stagger;
+
+ DBGCOMPLETED;
+ return SANE_STATUS_GOOD;
+}
+
+static void
+gl124_set_motor_power (Genesys_Register_Set * regs, SANE_Bool set)
+{
+
+ DBG (DBG_proc, "gl124_set_motor_power\n");
+
+ if (set)
+ {
+ sanei_genesys_set_reg_from_set (regs, REG02,
+ sanei_genesys_read_reg_from_set (regs,
+ REG02)
+ | REG02_MTRPWR);
+ }
+ else
+ {
+ sanei_genesys_set_reg_from_set (regs, REG02,
+ sanei_genesys_read_reg_from_set (regs,
+ REG02)
+ & ~REG02_MTRPWR);
+ }
+}
+
+static void
+gl124_set_lamp_power (Genesys_Device * dev,
+ Genesys_Register_Set * regs, SANE_Bool set)
+{
+ if (dev == NULL || regs==NULL)
+ return;
+
+ if (set)
+ {
+ sanei_genesys_set_reg_from_set (regs, 0x03,
+ sanei_genesys_read_reg_from_set (regs,
+ 0x03)
+ | REG03_LAMPPWR);
+ }
+ else
+ {
+ sanei_genesys_set_reg_from_set (regs, 0x03,
+ sanei_genesys_read_reg_from_set (regs,
+ 0x03)
+ & ~REG03_LAMPPWR);
+ }
+}
+
+/**
+ * for fast power saving methods only, like disabling certain amplifiers
+ * @param dev device to use
+ * @param enable true to set inot powersaving
+ * */
+static SANE_Status
+gl124_save_power (Genesys_Device * dev, SANE_Bool enable)
+{
+ DBG (DBG_proc, "gl124_save_power: enable = %d\n", enable);
+ if (dev == NULL)
+ return SANE_STATUS_INVAL;
+
+ DBGCOMPLETED;
+ return SANE_STATUS_GOOD;
+}
+
+static SANE_Status
+gl124_set_powersaving (Genesys_Device * dev, int delay /* in minutes */ )
+{
+ Genesys_Register_Set *r;
+
+ DBG (DBG_proc, "gl124_set_powersaving (delay = %d)\n", delay);
+
+ r = sanei_genesys_get_address (dev->reg, REG03);
+ r->value &= ~0xf0;
+ if(delay<15)
+ {
+ r->value |= delay;
+ }
+ else
+ {
+ r->value |= 0x0f;
+ }
+
+ DBGCOMPLETED;
+ return SANE_STATUS_GOOD;
+}
+
+#ifndef UNIT_TESTING
+static
+#endif
+ SANE_Status
+gl124_start_action (Genesys_Device * dev)
+{
+ return sanei_genesys_write_register (dev, 0x0f, 0x01);
+}
+
+#ifndef UNIT_TESTING
+static
+#endif
+SANE_Status
+gl124_stop_action (Genesys_Device * dev)
+{
+ SANE_Status status;
+ uint8_t val40, val;
+ unsigned int loop;
+
+ DBGSTART;
+
+ /* post scan gpio : without that HOMSNR is unreliable */
+ gl124_homsnr_gpio(dev);
+
+ status = sanei_genesys_get_status (dev, &val);
+ if (DBG_LEVEL >= DBG_io)
+ {
+ sanei_genesys_print_status (val);
+ }
+
+ status = sanei_genesys_read_register (dev, REG100, &val40);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (DBG_error,
+ "%s: failed to read reg100: %s\n", __FUNCTION__,
+ sane_strstatus (status));
+ DBGCOMPLETED;
+ return status;
+ }
+
+ /* only stop action if needed */
+ if (!(val40 & REG100_DATAENB) && !(val40 & REG100_MOTMFLG))
+ {
+ DBG (DBG_info, "%s: already stopped\n", __FUNCTION__);
+ DBGCOMPLETED;
+ return SANE_STATUS_GOOD;
+ }
+
+ /* ends scan */
+ val = sanei_genesys_read_reg_from_set (dev->reg, REG01);
+ val &= ~REG01_SCAN;
+ sanei_genesys_set_reg_from_set (dev->reg, REG01, val);
+ status = sanei_genesys_write_register (dev, REG01, val);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (DBG_error,
+ "%s: failed to write register 01: %s\n", __FUNCTION__,
+ sane_strstatus (status));
+ return status;
+ }
+ usleep (100 * 1000);
+
+ loop = 10;
+ while (loop > 0)
+ {
+ status = sanei_genesys_get_status (dev, &val);
+ if (DBG_LEVEL >= DBG_io)
+ {
+ sanei_genesys_print_status (val);
+ }
+ status = sanei_genesys_read_register (dev, REG100, &val40);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (DBG_error,
+ "%s: failed to read home sensor: %s\n", __FUNCTION__,
+ sane_strstatus (status));
+ DBGCOMPLETED;
+ return status;
+ }
+
+ /* if scanner is in command mode, we are done */
+ if (!(val40 & REG100_DATAENB) && !(val40 & REG100_MOTMFLG)
+ && !(val & MOTORENB))
+ {
+ DBGCOMPLETED;
+ return SANE_STATUS_GOOD;
+ }
+
+ usleep (100 * 1000);
+ loop--;
+ }
+
+ DBGCOMPLETED;
+ return SANE_STATUS_IO_ERROR;
+}
+
+
+static SANE_Status
+gl124_setup_scan_gpio(Genesys_Device *dev, int resolution)
+{
+SANE_Status status;
+uint8_t val;
+
+ DBGSTART;
+ RIE (sanei_genesys_read_register (dev, REG32, &val));
+ if(resolution>=dev->motor.base_ydpi/2)
+ {
+ val &= 0xf7;
+ }
+ else if(resolution>=dev->motor.base_ydpi/4)
+ {
+ val &= 0xef;
+ }
+ else
+ {
+ val |= 0x10;
+ }
+ val |= 0x02;
+ RIE (sanei_genesys_write_register (dev, REG32, val));
+ DBGCOMPLETED;
+ return SANE_STATUS_GOOD;
+}
+
+/* Send the low-level scan command */
+/* todo : is this that useful ? */
+#ifndef UNIT_TESTING
+static
+#endif
+ SANE_Status
+gl124_begin_scan (Genesys_Device * dev, Genesys_Register_Set * reg,
+ SANE_Bool start_motor)
+{
+ SANE_Status status;
+ uint8_t val;
+
+ DBGSTART;
+ if (reg == NULL)
+ return SANE_STATUS_INVAL;
+
+ /* set up GPIO for scan */
+ RIE(gl124_setup_scan_gpio(dev,dev->settings.yres));
+
+ /* clear scan and feed count */
+ RIE (sanei_genesys_write_register (dev, REG0D, REG0D_CLRLNCNT | REG0D_CLRMCNT));
+
+ /* enable scan and motor */
+ RIE (sanei_genesys_read_register (dev, REG01, &val));
+ val |= REG01_SCAN;
+ RIE (sanei_genesys_write_register (dev, REG01, val));
+
+ if (start_motor)
+ {
+ RIE (sanei_genesys_write_register (dev, REG0F, 1));
+ }
+ else
+ {
+ RIE (sanei_genesys_write_register (dev, REG0F, 0));
+ }
+
+ DBGCOMPLETED;
+ return status;
+}
+
+
+/* Send the stop scan command */
+#ifndef UNIT_TESTING
+static
+#endif
+ SANE_Status
+gl124_end_scan (Genesys_Device * dev, Genesys_Register_Set * reg,
+ SANE_Bool check_stop)
+{
+ SANE_Status status;
+
+ DBG (DBG_proc, "gl124_end_scan (check_stop = %d)\n", check_stop);
+ if (reg == NULL)
+ return SANE_STATUS_INVAL;
+
+ if (dev->model->is_sheetfed == SANE_TRUE)
+ {
+ status = SANE_STATUS_GOOD;
+ }
+ else /* flat bed scanners */
+ {
+ status = gl124_stop_action (dev);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (DBG_error,
+ "gl124_end_scan: failed to stop: %s\n",
+ sane_strstatus (status));
+ return status;
+ }
+ }
+
+ DBGCOMPLETED;
+ return status;
+}
+
+
+/** @brief Moves the slider to the home (top) position slowly
+ * */
+#ifndef UNIT_TESTING
+static
+#endif
+ SANE_Status
+gl124_slow_back_home (Genesys_Device * dev, SANE_Bool wait_until_home)
+{
+ Genesys_Register_Set local_reg[GENESYS_GL124_MAX_REGS];
+ SANE_Status status;
+ Genesys_Register_Set *r;
+ uint8_t val;
+ float resolution;
+ int loop = 0;
+ int scan_mode;
+
+ DBG (DBG_proc, "gl124_slow_back_home (wait_until_home = %d)\n",
+ wait_until_home);
+
+ if(dev->usb_mode<0)
+ {
+ DBGCOMPLETED;
+ return SANE_STATUS_GOOD;
+ }
+
+ /* post scan gpio : without that HOMSNR is unreliable */
+ gl124_homsnr_gpio(dev);
+
+ /* first read gives HOME_SENSOR true */
+ status = sanei_genesys_get_status (dev, &val);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (DBG_error,
+ "gl124_slow_back_home: failed to read home sensor: %s\n",
+ sane_strstatus (status));
+ return status;
+ }
+ if (DBG_LEVEL >= DBG_io)
+ {
+ sanei_genesys_print_status (val);
+ }
+ usleep (100000); /* sleep 100 ms */
+
+ /* second is reliable */
+ status = sanei_genesys_get_status (dev, &val);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (DBG_error,
+ "gl124_slow_back_home: failed to read home sensor: %s\n",
+ sane_strstatus (status));
+ return status;
+ }
+ if (DBG_LEVEL >= DBG_io)
+ {
+ sanei_genesys_print_status (val);
+ }
+
+ /* is sensor at home? */
+ if (val & HOMESNR)
+ {
+ DBG (DBG_info, "%s: already at home, completed\n", __FUNCTION__);
+ dev->scanhead_position_in_steps = 0;
+ DBGCOMPLETED;
+ return SANE_STATUS_GOOD;
+ }
+
+ memcpy (local_reg, dev->reg, GENESYS_GL124_MAX_REGS * sizeof (Genesys_Register_Set));
+ resolution=sanei_genesys_get_lowest_dpi(dev);
+
+ /* TODO add scan_mode to the API */
+ scan_mode= dev->settings.scan_mode;
+ dev->settings.scan_mode=SCAN_MODE_GRAY;
+ gl124_init_scan_regs (dev,
+ local_reg,
+ resolution,
+ resolution,
+ 100,
+ 30000,
+ 100,
+ 100,
+ 8,
+ 1,
+ 0,
+ SCAN_FLAG_DISABLE_SHADING |
+ SCAN_FLAG_DISABLE_GAMMA |
+ SCAN_FLAG_IGNORE_LINE_DISTANCE);
+ dev->settings.scan_mode=scan_mode;
+
+ /* clear scan and feed count */
+ RIE (sanei_genesys_write_register (dev, REG0D, REG0D_CLRLNCNT | REG0D_CLRMCNT));
+
+ /* set up for reverse and no scan */
+ r = sanei_genesys_get_address (local_reg, REG02);
+ r->value |= REG02_MTRREV;
+
+ RIE (dev->model->cmd_set->bulk_write_register (dev, local_reg, GENESYS_GL124_MAX_REGS));
+
+ RIE(gl124_setup_scan_gpio(dev,resolution));
+
+ status = gl124_start_action (dev);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (DBG_error,
+ "gl124_slow_back_home: failed to start motor: %s\n",
+ sane_strstatus (status));
+ gl124_stop_action (dev);
+ /* restore original registers */
+ dev->model->cmd_set->bulk_write_register (dev, dev->reg, GENESYS_GL124_MAX_REGS);
+ return status;
+ }
+
+ /* post scan gpio : without that HOMSNR is unreliable */
+ gl124_homsnr_gpio(dev);
+
+ if (wait_until_home)
+ {
+
+ while (loop < 300) /* do not wait longer then 30 seconds */
+ {
+ status = sanei_genesys_get_status (dev, &val);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (DBG_error,
+ "gl124_slow_back_home: failed to read home sensor: %s\n",
+ sane_strstatus (status));
+ return status;
+ }
+
+ if (val & HOMESNR) /* home sensor */
+ {
+ DBG (DBG_info, "gl124_slow_back_home: reached home position\n");
+ DBGCOMPLETED;
+ dev->scanhead_position_in_steps = 0;
+ return SANE_STATUS_GOOD;
+ }
+ usleep (100000); /* sleep 100 ms */
+ ++loop;
+ }
+
+ /* when we come here then the scanner needed too much time for this, so we better stop the motor */
+ gl124_stop_action (dev);
+ DBG (DBG_error,
+ "gl124_slow_back_home: timeout while waiting for scanhead to go home\n");
+ return SANE_STATUS_IO_ERROR;
+ }
+
+ DBG (DBG_info, "gl124_slow_back_home: scanhead is still moving\n");
+ DBGCOMPLETED;
+ return SANE_STATUS_GOOD;
+}
+
+/** @brief moves the slider to steps at motor base dpi
+ * @param dev device to work on
+ * @param steps number of steps to move
+ * */
+#ifndef UNIT_TESTING
+static
+#endif
+SANE_Status
+gl124_feed (Genesys_Device * dev, unsigned int steps)
+{
+ Genesys_Register_Set local_reg[GENESYS_GL124_MAX_REGS];
+ SANE_Status status;
+ Genesys_Register_Set *r;
+ float resolution;
+ uint8_t val;
+
+ DBGSTART;
+ DBG (DBG_io, "%s: steps=%d\n", __FUNCTION__, steps);
+
+ /* prepare local registers */
+ memcpy (local_reg, dev->reg, GENESYS_GL124_MAX_REGS * sizeof (Genesys_Register_Set));
+
+ resolution=sanei_genesys_get_lowest_ydpi(dev);
+ gl124_init_scan_regs (dev,
+ local_reg,
+ resolution,
+ resolution,
+ 0,
+ steps,
+ 100,
+ 3,
+ 8,
+ 3,
+ dev->settings.color_filter,
+ SCAN_FLAG_DISABLE_SHADING |
+ SCAN_FLAG_DISABLE_GAMMA |
+ SCAN_FLAG_FEEDING |
+ SCAN_FLAG_DISABLE_BUFFER_FULL_MOVE |
+ SCAN_FLAG_IGNORE_LINE_DISTANCE);
+
+ /* set exposure to zero */
+ sanei_genesys_set_triple(local_reg,REG_EXPR,0);
+ sanei_genesys_set_triple(local_reg,REG_EXPG,0);
+ sanei_genesys_set_triple(local_reg,REG_EXPB,0);
+
+ /* clear scan and feed count */
+ RIE (sanei_genesys_write_register (dev, REG0D, REG0D_CLRLNCNT));
+ RIE (sanei_genesys_write_register (dev, REG0D, REG0D_CLRMCNT));
+
+ /* set up for no scan */
+ r = sanei_genesys_get_address (local_reg, REG01);
+ r->value &= ~REG01_SCAN;
+
+ /* send registers */
+ RIE (dev->model->cmd_set->bulk_write_register (dev, local_reg, GENESYS_GL124_MAX_REGS));
+
+ status = gl124_start_action (dev);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (DBG_error, "%s: failed to start motor: %s\n", __FUNCTION__, sane_strstatus (status));
+ gl124_stop_action (dev);
+
+ /* restore original registers */
+ dev->model->cmd_set->bulk_write_register (dev, dev->reg, GENESYS_GL124_MAX_REGS);
+ return status;
+ }
+
+ /* wait until feed count reaches the required value, but do not
+ * exceed 30s */
+ do
+ {
+ status = sanei_genesys_get_status (dev, &val);
+ }
+ while (status == SANE_STATUS_GOOD && !(val & FEEDFSH));
+
+ /* then stop scanning */
+ RIE(gl124_stop_action (dev));
+
+ DBGCOMPLETED;
+ return SANE_STATUS_GOOD;
+}
+
+
+/* Automatically set top-left edge of the scan area by scanning a 200x200 pixels
+ area at 600 dpi from very top of scanner */
+static SANE_Status
+gl124_search_start_position (Genesys_Device * dev)
+{
+ int size;
+ SANE_Status status;
+ uint8_t *data;
+ Genesys_Register_Set local_reg[GENESYS_GL124_MAX_REGS];
+ int steps;
+
+ int pixels = 600;
+ int dpi = 300;
+
+ DBG (DBG_proc, "gl124_search_start_position\n");
+
+ memcpy (local_reg, dev->reg,
+ GENESYS_GL124_MAX_REGS * sizeof (Genesys_Register_Set));
+
+ /* sets for a 200 lines * 600 pixels */
+ /* normal scan with no shading */
+
+ status = gl124_init_scan_regs (dev, local_reg, dpi, dpi, 0, 0, /*we should give a small offset here~60 steps */
+ 600, dev->model->search_lines, 8, 1, 1, /*green */
+ SCAN_FLAG_DISABLE_SHADING |
+ SCAN_FLAG_DISABLE_GAMMA |
+ SCAN_FLAG_IGNORE_LINE_DISTANCE |
+ SCAN_FLAG_DISABLE_BUFFER_FULL_MOVE);
+ if (status!=SANE_STATUS_GOOD)
+ {
+ DBG (DBG_error,
+ "%s: failed to init scan registers: %s\n", __FUNCTION__,
+ sane_strstatus (status));
+ return status;
+ }
+
+ /* send to scanner */
+ status = dev->model->cmd_set->bulk_write_register (dev, local_reg, GENESYS_GL124_MAX_REGS);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (DBG_error,
+ "gl124_search_start_position: failed to bulk write registers: %s\n",
+ sane_strstatus (status));
+ return status;
+ }
+
+ size = pixels * dev->model->search_lines;
+
+ data = malloc (size);
+ if (!data)
+ {
+ DBG (DBG_error,
+ "gl124_search_start_position: failed to allocate memory\n");
+ return SANE_STATUS_NO_MEM;
+ }
+
+ status = gl124_begin_scan (dev, local_reg, SANE_TRUE);
+ if (status != SANE_STATUS_GOOD)
+ {
+ free (data);
+ DBG (DBG_error,
+ "gl124_search_start_position: failed to begin scan: %s\n",
+ sane_strstatus (status));
+ return status;
+ }
+
+ /* waits for valid data */
+ do
+ sanei_genesys_test_buffer_empty (dev, &steps);
+ while (steps);
+
+ /* now we're on target, we can read data */
+ status = sanei_genesys_read_data_from_scanner (dev, data, size);
+ if (status != SANE_STATUS_GOOD)
+ {
+ free (data);
+ DBG (DBG_error,
+ "gl124_search_start_position: failed to read data: %s\n",
+ sane_strstatus (status));
+ return status;
+ }
+
+ if (DBG_LEVEL >= DBG_data)
+ sanei_genesys_write_pnm_file ("search_position.pnm", data, 8, 1, pixels,
+ dev->model->search_lines);
+
+ status = gl124_end_scan (dev, local_reg, SANE_TRUE);
+ if (status != SANE_STATUS_GOOD)
+ {
+ free (data);
+ DBG (DBG_error,
+ "gl124_search_start_position: failed to end scan: %s\n",
+ sane_strstatus (status));
+ return status;
+ }
+
+ /* update regs to copy ASIC internal state */
+ memcpy (dev->reg, local_reg,
+ GENESYS_GL124_MAX_REGS * sizeof (Genesys_Register_Set));
+
+ status =
+ sanei_genesys_search_reference_point (dev, data, 0, dpi, pixels,
+ dev->model->search_lines);
+ if (status != SANE_STATUS_GOOD)
+ {
+ free (data);
+ DBG (DBG_error,
+ "gl124_search_start_position: failed to set search reference point: %s\n",
+ sane_strstatus (status));
+ return status;
+ }
+
+ free (data);
+ return SANE_STATUS_GOOD;
+}
+
+/*
+ * sets up register for coarse gain calibration
+ * todo: check it for scanners using it */
+static SANE_Status
+gl124_init_regs_for_coarse_calibration (Genesys_Device * dev)
+{
+ SANE_Status status;
+ uint8_t channels;
+ uint8_t cksel;
+
+ DBGSTART;
+ cksel = (dev->calib_reg[reg_0x18].value & REG18_CKSEL) + 1; /* clock speed = 1..4 clocks */
+
+ /* set line size */
+ if (dev->settings.scan_mode == SCAN_MODE_COLOR) /* single pass color */
+ channels = 3;
+ else
+ channels = 1;
+
+ status = gl124_init_scan_regs (dev,
+ dev->calib_reg,
+ dev->settings.xres,
+ dev->settings.yres,
+ 0,
+ 0,
+ dev->sensor.optical_res / cksel,
+ 20,
+ 16,
+ channels,
+ dev->settings.color_filter,
+ SCAN_FLAG_DISABLE_SHADING |
+ SCAN_FLAG_DISABLE_GAMMA |
+ SCAN_FLAG_SINGLE_LINE |
+ SCAN_FLAG_FEEDING |
+ SCAN_FLAG_IGNORE_LINE_DISTANCE);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (DBG_error,
+ "gl124_init_register_for_coarse_calibration: failed to setup scan: %s\n",
+ sane_strstatus (status));
+ return status;
+ }
+ gl124_set_motor_power (dev->calib_reg, SANE_FALSE);
+
+ DBG (DBG_info,
+ "gl124_init_register_for_coarse_calibration: optical sensor res: %d dpi, actual res: %d\n",
+ dev->sensor.optical_res / cksel, dev->settings.xres);
+
+ status = dev->model->cmd_set->bulk_write_register (dev, dev->calib_reg, GENESYS_GL124_MAX_REGS);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (DBG_error,
+ "gl124_init_register_for_coarse_calibration: failed to bulk write registers: %s\n",
+ sane_strstatus (status));
+ return status;
+ }
+
+ DBGCOMPLETED;
+ return SANE_STATUS_GOOD;
+}
+
+
+/* init registers for shading calibration */
+/* shading calibration is done at dpihw */
+static SANE_Status
+gl124_init_regs_for_shading (Genesys_Device * dev)
+{
+ SANE_Status status;
+ int move, resolution, dpihw, factor;
+
+ DBGSTART;
+
+ /* initial calibration reg values */
+ memcpy (dev->calib_reg, dev->reg, GENESYS_GL124_MAX_REGS * sizeof (Genesys_Register_Set));
+
+ dev->calib_channels = 3;
+ dev->calib_lines = dev->model->shading_lines;
+ dpihw=sanei_genesys_compute_dpihw(dev,dev->settings.xres);
+ if(dpihw>=2400)
+ {
+ dev->calib_lines *= 2;
+ }
+ resolution=dpihw;
+
+ /* if half CCD mode, use half resolution */
+ if(compute_half_ccd(dev->model, dev->settings.xres)==SANE_TRUE)
+ {
+ resolution /= 2;
+ dev->calib_lines /= 2;
+ }
+ dev->calib_resolution = resolution;
+ factor=dev->sensor.optical_res/resolution;
+ dev->calib_pixels = dev->sensor.sensor_pixels/factor;
+
+ /* distance to move to reach white target at high resolution */
+ move=0;
+ if(dev->settings.yres>=1200)
+ {
+ move = SANE_UNFIX (dev->model->y_offset_calib);
+ move = (move * (dev->motor.base_ydpi/4)) / MM_PER_INCH;
+ }
+ DBG (DBG_io, "%s: move=%d steps\n", __FUNCTION__, move);
+
+ status = gl124_init_scan_regs (dev,
+ dev->calib_reg,
+ resolution,
+ resolution,
+ 0,
+ move,
+ dev->calib_pixels,
+ dev->calib_lines,
+ 16,
+ dev->calib_channels,
+ 0,
+ SCAN_FLAG_DISABLE_SHADING |
+ SCAN_FLAG_DISABLE_GAMMA |
+ SCAN_FLAG_DISABLE_BUFFER_FULL_MOVE |
+ SCAN_FLAG_IGNORE_LINE_DISTANCE);
+ gl124_set_motor_power (dev->calib_reg, SANE_FALSE);
+
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (DBG_error, "%s: failed to setup scan: %s\n", __FUNCTION__,
+ sane_strstatus (status));
+ return status;
+ }
+
+ dev->scanhead_position_in_steps += dev->calib_lines + move;
+
+ status = dev->model->cmd_set->bulk_write_register (dev, dev->calib_reg, GENESYS_GL124_MAX_REGS);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (DBG_error,
+ "%s: failed to bulk write registers: %s\n", __FUNCTION__,
+ sane_strstatus (status));
+ return status;
+ }
+
+ DBGCOMPLETED;
+ return SANE_STATUS_GOOD;
+}
+
+/** @brief set up registers for the actual scan
+ */
+static SANE_Status
+gl124_init_regs_for_scan (Genesys_Device * dev)
+{
+ int channels;
+ int flags;
+ int depth;
+ float move;
+ int move_dpi;
+ float start;
+ uint8_t val40,val;
+
+ SANE_Status status;
+
+ DBG (DBG_info,
+ "gl124_init_regs_for_scan settings:\nResolution: %ux%uDPI\n"
+ "Lines : %u\npixels : %u\nStartpos : %.3f/%.3f\nScan mode : %d\n\n",
+ dev->settings.xres,
+ dev->settings.yres,
+ dev->settings.lines,
+ dev->settings.pixels,
+ dev->settings.tl_x,
+ dev->settings.tl_y,
+ dev->settings.scan_mode);
+
+ /* wait for motor to stop first */
+ status = sanei_genesys_get_status (dev, &val);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (DBG_error, "%s: failed to read status: %s\n", __FUNCTION__, sane_strstatus (status));
+ DBGCOMPLETED;
+ return status;
+ }
+ status = sanei_genesys_read_register (dev, REG100, &val40);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (DBG_error, "%s: failed to read reg100: %s\n", __FUNCTION__, sane_strstatus (status));
+ DBGCOMPLETED;
+ return status;
+ }
+ if((val & MOTORENB) || (val40 & REG100_MOTMFLG))
+ {
+ do
+ {
+ usleep(10000);
+ status = sanei_genesys_get_status (dev, &val);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (DBG_error, "%s: failed to read status: %s\n", __FUNCTION__, sane_strstatus (status));
+ DBGCOMPLETED;
+ return status;
+ }
+ status = sanei_genesys_read_register (dev, REG100, &val40);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (DBG_error, "%s: failed to read reg100: %s\n", __FUNCTION__, sane_strstatus (status));
+ DBGCOMPLETED;
+ return status;
+ }
+ } while ((val & MOTORENB) || (val40 & REG100_MOTMFLG));
+ usleep(50000);
+ }
+
+ /* ensure head is parked in case of calibration */
+ RIE (gl124_slow_back_home (dev, SANE_TRUE));
+
+ /* channels */
+ if (dev->settings.scan_mode == SCAN_MODE_COLOR)
+ channels = 3;
+ else
+ channels = 1;
+
+ /* depth */
+ depth = dev->settings.depth;
+ if (dev->settings.scan_mode == SCAN_MODE_LINEART)
+ depth = 1;
+
+ /* y (motor) distance to move to reach scanned area */
+ move_dpi = dev->motor.base_ydpi/4;
+ move = SANE_UNFIX (dev->model->y_offset);
+ move += dev->settings.tl_y;
+ move = (move * move_dpi) / MM_PER_INCH;
+ DBG (DBG_info, "%s: move=%f steps\n", __FUNCTION__, move);
+
+ if(channels*dev->settings.yres>=600 && move>700)
+ {
+ status = gl124_feed (dev, move-500);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (DBG_error, "%s: failed to move to scan area\n",__FUNCTION__);
+ return status;
+ }
+ move=500;
+ }
+ DBG (DBG_info, "gl124_init_regs_for_scan: move=%f steps\n", move);
+
+ /* start */
+ start = SANE_UNFIX (dev->model->x_offset);
+ start += dev->settings.tl_x;
+ if(compute_half_ccd(dev->model, dev->settings.xres)==SANE_TRUE)
+ {
+ start /=2;
+ }
+ start = (start * dev->sensor.optical_res) / MM_PER_INCH;
+
+ flags = 0;
+
+ /* enable emulated lineart from gray data */
+ if(dev->settings.scan_mode == SCAN_MODE_LINEART
+ && dev->settings.dynamic_lineart)
+ {
+ flags |= SCAN_FLAG_DYNAMIC_LINEART;
+ }
+
+ status = gl124_init_scan_regs (dev,
+ dev->reg,
+ dev->settings.xres,
+ dev->settings.yres,
+ start,
+ move,
+ dev->settings.pixels,
+ dev->settings.lines,
+ depth,
+ channels,
+ dev->settings.color_filter,
+ flags);
+
+ if (status != SANE_STATUS_GOOD)
+ return status;
+
+ DBGCOMPLETED;
+ return SANE_STATUS_GOOD;
+}
+
+/**
+ * Send shading calibration data. The buffer is considered to always hold values
+ * for all the channels.
+ */
+#ifndef UNIT_TESTING
+static
+#endif
+SANE_Status
+gl124_send_shading_data (Genesys_Device * dev, uint8_t * data, int size)
+{
+ SANE_Status status = SANE_STATUS_GOOD;
+ uint32_t addr, length, strpixel ,endpixel, x, factor, segcnt, pixels, i;
+ uint32_t lines, channels;
+ uint16_t dpiset,dpihw;
+ uint8_t val,*buffer,*ptr,*src;
+
+ DBGSTART;
+ DBG( DBG_io2, "%s: writing %d bytes of shading data\n",__FUNCTION__,size);
+
+ /* logical size of a color as seen by generic code of the frontend */
+ length = (uint32_t) (size / 3);
+ sanei_genesys_get_triple(dev->reg,REG_STRPIXEL,&strpixel);
+ sanei_genesys_get_triple(dev->reg,REG_ENDPIXEL,&endpixel);
+ sanei_genesys_get_triple(dev->reg,REG_SEGCNT,&segcnt);
+ if(endpixel==0)
+ {
+ endpixel=segcnt;
+ }
+ DBG( DBG_io2, "%s: STRPIXEL=%d, ENDPIXEL=%d, PIXELS=%d, SEGCNT=%d\n",__FUNCTION__,strpixel,endpixel,endpixel-strpixel,segcnt);
+
+ /* compute deletion factor */
+ sanei_genesys_get_double(dev->reg,REG_DPISET,&dpiset);
+ dpihw=sanei_genesys_compute_dpihw(dev,dpiset);
+ factor=dpihw/dpiset;
+ DBG( DBG_io2, "%s: factor=%d\n",__FUNCTION__,factor);
+
+ /* binary data logging */
+ if(DBG_LEVEL>=DBG_data)
+ {
+ dev->binary=fopen("binary.pnm","wb");
+ sanei_genesys_get_triple(dev->reg, REG_LINCNT, &lines);
+ channels=dev->current_setup.channels;
+ if(dev->binary!=NULL)
+ {
+ fprintf(dev->binary,"P5\n%d %d\n%d\n",(endpixel-strpixel)/factor*channels*dev->segnb,lines/channels,255);
+ }
+ }
+
+ /* turn pixel value into bytes 2x16 bits words */
+ strpixel*=2*2; /* 2 words of 2 bytes */
+ endpixel*=2*2;
+ segcnt*=2*2;
+ pixels=endpixel-strpixel;
+
+ DBG( DBG_io2, "%s: using chunks of %d bytes (%d shading data pixels)\n",__FUNCTION__,length, length/4);
+ buffer=(uint8_t *)malloc(pixels*dev->segnb);
+ memset(buffer,0,pixels*dev->segnb);
+
+ /* write actual red data */
+ for(i=0;i<3;i++)
+ {
+ /* copy data to work buffer and process it */
+ /* coefficent destination */
+ ptr=buffer;
+
+ /* iterate on both sensor segment */
+ for(x=0;x<pixels;x+=4*factor)
+ {
+ /* coefficient source */
+ src=data+x+strpixel+i*length;
+
+ /* iterate over all the segments */
+ switch(dev->segnb)
+ {
+ case 1:
+ ptr[0+pixels*0]=src[0+segcnt*0];
+ ptr[1+pixels*0]=src[1+segcnt*0];
+ ptr[2+pixels*0]=src[2+segcnt*0];
+ ptr[3+pixels*0]=src[3+segcnt*0];
+ break;
+ case 2:
+ ptr[0+pixels*0]=src[0+segcnt*0];
+ ptr[1+pixels*0]=src[1+segcnt*0];
+ ptr[2+pixels*0]=src[2+segcnt*0];
+ ptr[3+pixels*0]=src[3+segcnt*0];
+ ptr[0+pixels*1]=src[0+segcnt*1];
+ ptr[1+pixels*1]=src[1+segcnt*1];
+ ptr[2+pixels*1]=src[2+segcnt*1];
+ ptr[3+pixels*1]=src[3+segcnt*1];
+ break;
+ case 4:
+ ptr[0+pixels*0]=src[0+segcnt*0];
+ ptr[1+pixels*0]=src[1+segcnt*0];
+ ptr[2+pixels*0]=src[2+segcnt*0];
+ ptr[3+pixels*0]=src[3+segcnt*0];
+ ptr[0+pixels*1]=src[0+segcnt*2];
+ ptr[1+pixels*1]=src[1+segcnt*2];
+ ptr[2+pixels*1]=src[2+segcnt*2];
+ ptr[3+pixels*1]=src[3+segcnt*2];
+ ptr[0+pixels*2]=src[0+segcnt*1];
+ ptr[1+pixels*2]=src[1+segcnt*1];
+ ptr[2+pixels*2]=src[2+segcnt*1];
+ ptr[3+pixels*2]=src[3+segcnt*1];
+ ptr[0+pixels*3]=src[0+segcnt*3];
+ ptr[1+pixels*3]=src[1+segcnt*3];
+ ptr[2+pixels*3]=src[2+segcnt*3];
+ ptr[3+pixels*3]=src[3+segcnt*3];
+ break;
+ }
+
+ /* next shading coefficient */
+ ptr+=4;
+ }
+ RIE (sanei_genesys_read_register (dev, 0xd0+i, &val));
+ addr = val * 8192 + 0x10000000;
+ status = sanei_genesys_write_ahb (dev->dn, dev->usb_mode, addr, pixels*dev->segnb, buffer);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (DBG_error, "gl124_send_shading_data; write to AHB failed (%s)\n",
+ sane_strstatus (status));
+ return status;
+ }
+ }
+
+ free(buffer);
+ DBGCOMPLETED;
+
+ return status;
+}
+
+
+/** @brief move to calibration area
+ * This functions moves scanning head to calibration area
+ * by doing a 600 dpi scan
+ * @param dev scanner device
+ * @return SANE_STATUS_GOOD on success, else the error code
+ */
+static SANE_Status
+move_to_calibration_area (Genesys_Device * dev)
+{
+ int pixels;
+ int size;
+ uint8_t *line;
+ SANE_Status status = SANE_STATUS_GOOD;
+
+ DBGSTART;
+
+ pixels = (dev->sensor.sensor_pixels*600)/dev->sensor.optical_res;
+
+ /* initial calibration reg values */
+ memcpy (dev->calib_reg, dev->reg, GENESYS_GL124_MAX_REGS * sizeof (Genesys_Register_Set));
+
+ /* set up for the calibration scan */
+ status = gl124_init_scan_regs (dev,
+ dev->calib_reg,
+ 600,
+ 600,
+ 0,
+ 0,
+ pixels,
+ 1,
+ 8,
+ 3,
+ dev->settings.color_filter,
+ SCAN_FLAG_DISABLE_SHADING |
+ SCAN_FLAG_DISABLE_GAMMA |
+ SCAN_FLAG_SINGLE_LINE |
+ SCAN_FLAG_IGNORE_LINE_DISTANCE);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (DBG_error, "%s: failed to setup scan: %s\n", __FUNCTION__, sane_strstatus (status));
+ return status;
+ }
+
+ size = pixels * 3;
+ line = malloc (size);
+ if (!line)
+ return SANE_STATUS_NO_MEM;
+
+ /* write registers and scan data */
+ RIEF (dev->model->cmd_set->bulk_write_register (dev, dev->calib_reg, GENESYS_GL124_MAX_REGS), line);
+
+ DBG (DBG_info, "%s: starting line reading\n", __FUNCTION__);
+ RIEF (gl124_begin_scan (dev, dev->calib_reg, SANE_TRUE), line);
+ RIEF (sanei_genesys_read_data_from_scanner (dev, line, size), line);
+
+ /* stop scanning */
+ RIE (gl124_stop_action (dev));
+
+ if (DBG_LEVEL >= DBG_data)
+ {
+ sanei_genesys_write_pnm_file ("movetocalarea.pnm", line, 8, 3, pixels, 1);
+ }
+
+ /* cleanup before return */
+ free (line);
+
+ DBGCOMPLETED;
+ return status;
+}
+
+/* this function does the led calibration by scanning one line of the calibration
+ area below scanner's top on white strip.
+
+-needs working coarse/gain
+*/
+static SANE_Status
+gl124_led_calibration (Genesys_Device * dev)
+{
+ int num_pixels;
+ int total_size;
+ int resolution;
+ int dpihw;
+ uint8_t *line;
+ int i, j;
+ SANE_Status status = SANE_STATUS_GOOD;
+ int val;
+ int channels, depth;
+ int avg[3];
+ int turn;
+ char fn[20];
+ uint16_t exp[3],target;
+ Sensor_Profile *sensor;
+ SANE_Bool acceptable;
+ SANE_Bool half_ccd;
+
+ DBGSTART;
+
+ /* move to calibration area */
+ move_to_calibration_area(dev);
+
+ /* offset calibration is always done in 16 bit depth color mode */
+ channels = 3;
+ depth=16;
+ dpihw=sanei_genesys_compute_dpihw(dev, dev->settings.xres);
+ half_ccd=compute_half_ccd(dev->model, dev->settings.xres);
+ if(half_ccd==SANE_TRUE)
+ {
+ resolution = dpihw/2;
+ }
+ else
+ {
+ resolution = dpihw;
+ }
+ sensor=get_sensor_profile(dev->model->ccd_type, dpihw, half_ccd);
+ num_pixels = (dev->sensor.sensor_pixels*resolution)/dev->sensor.optical_res;
+
+ /* initial calibration reg values */
+ memcpy (dev->calib_reg, dev->reg, GENESYS_GL124_MAX_REGS * sizeof (Genesys_Register_Set));
+
+ /* set up for the calibration scan */
+ status = gl124_init_scan_regs (dev,
+ dev->calib_reg,
+ resolution,
+ resolution,
+ 0,
+ 0,
+ num_pixels,
+ 1,
+ depth,
+ channels,
+ dev->settings.color_filter,
+ SCAN_FLAG_DISABLE_SHADING |
+ SCAN_FLAG_DISABLE_GAMMA |
+ SCAN_FLAG_SINGLE_LINE |
+ SCAN_FLAG_IGNORE_LINE_DISTANCE);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (DBG_error, "%s: failed to setup scan: %s\n", __FUNCTION__, sane_strstatus (status));
+ return status;
+ }
+
+ total_size = num_pixels * channels * (depth/8) * 1; /* colors * bytes_per_color * scan lines */
+ line = malloc (total_size);
+ if (!line)
+ return SANE_STATUS_NO_MEM;
+
+ /* initial loop values and boundaries */
+ exp[0]=sensor->expr;
+ exp[1]=sensor->expg;
+ exp[2]=sensor->expb;
+ target=dev->sensor.gain_white_ref*256;
+
+ turn = 0;
+
+ /* no move during led calibration */
+ gl124_set_motor_power (dev->calib_reg, SANE_FALSE);
+ do
+ {
+ /* set up exposure */
+ sanei_genesys_set_triple(dev->calib_reg,REG_EXPR,exp[0]);
+ sanei_genesys_set_triple(dev->calib_reg,REG_EXPG,exp[1]);
+ sanei_genesys_set_triple(dev->calib_reg,REG_EXPB,exp[2]);
+
+ /* write registers and scan data */
+ RIEF (dev->model->cmd_set->bulk_write_register (dev, dev->calib_reg, GENESYS_GL124_MAX_REGS), line);
+
+ DBG (DBG_info, "gl124_led_calibration: starting line reading\n");
+ RIEF (gl124_begin_scan (dev, dev->calib_reg, SANE_TRUE), line);
+ RIEF (sanei_genesys_read_data_from_scanner (dev, line, total_size), line);
+
+ /* stop scanning */
+ RIEF (gl124_stop_action (dev), line);
+
+ if (DBG_LEVEL >= DBG_data)
+ {
+ snprintf (fn, 20, "led_%02d.pnm", turn);
+ sanei_genesys_write_pnm_file (fn, line, depth, channels, num_pixels, 1);
+ }
+
+ /* compute average */
+ for (j = 0; j < channels; j++)
+ {
+ avg[j] = 0;
+ for (i = 0; i < num_pixels; i++)
+ {
+ if (dev->model->is_cis)
+ val =
+ line[i * 2 + j * 2 * num_pixels + 1] * 256 +
+ line[i * 2 + j * 2 * num_pixels];
+ else
+ val =
+ line[i * 2 * channels + 2 * j + 1] * 256 +
+ line[i * 2 * channels + 2 * j];
+ avg[j] += val;
+ }
+
+ avg[j] /= num_pixels;
+ }
+
+ DBG (DBG_info, "gl124_led_calibration: average: %d,%d,%d\n", avg[0], avg[1], avg[2]);
+
+ /* check if exposure gives average within the boundaries */
+ acceptable = SANE_TRUE;
+ for(i=0;i<3;i++)
+ {
+ /* we accept +- 2% delta from target */
+ if(abs(avg[i]-target)>target/50)
+ {
+ exp[i]=(exp[i]*target)/avg[i];
+ acceptable = SANE_FALSE;
+ }
+ }
+
+ turn++;
+ }
+ while (!acceptable && turn < 100);
+
+ DBG (DBG_info, "gl124_led_calibration: acceptable exposure: %d,%d,%d\n", exp[0], exp[1], exp[2]);
+
+ /* set these values as final ones for scan */
+ sanei_genesys_set_triple(dev->reg,REG_EXPR,exp[0]);
+ sanei_genesys_set_triple(dev->reg,REG_EXPG,exp[1]);
+ sanei_genesys_set_triple(dev->reg,REG_EXPB,exp[2]);
+
+ /* store in this struct since it is the one used by cache calibration */
+ dev->sensor.regs_0x10_0x1d[0] = (exp[0] >> 8) & 0xff;
+ dev->sensor.regs_0x10_0x1d[1] = exp[0] & 0xff;
+ dev->sensor.regs_0x10_0x1d[2] = (exp[1] >> 8) & 0xff;
+ dev->sensor.regs_0x10_0x1d[3] = exp[1] & 0xff;
+ dev->sensor.regs_0x10_0x1d[4] = (exp[2] >> 8) & 0xff;
+ dev->sensor.regs_0x10_0x1d[5] = exp[2] & 0xff;
+
+ /* cleanup before return */
+ free (line);
+
+ DBGCOMPLETED;
+ return status;
+}
+
+/**
+ * average dark pixels of a 8 bits scan
+ */
+static int
+dark_average (uint8_t * data, unsigned int pixels, unsigned int lines,
+ unsigned int channels, unsigned int black)
+{
+ unsigned int i, j, k, average, count;
+ unsigned int avg[3];
+ uint8_t val;
+
+ /* computes average value on black margin */
+ for (k = 0; k < channels; k++)
+ {
+ avg[k] = 0;
+ count = 0;
+ for (i = 0; i < lines; i++)
+ {
+ for (j = 0; j < black; j++)
+ {
+ val = data[i * channels * pixels + j + k];
+ avg[k] += val;
+ count++;
+ }
+ }
+ if (count)
+ avg[k] /= count;
+ DBG (DBG_info, "dark_average: avg[%d] = %d\n", k, avg[k]);
+ }
+ average = 0;
+ for (i = 0; i < channels; i++)
+ average += avg[i];
+ average /= channels;
+ DBG (DBG_info, "dark_average: average = %d\n", average);
+ return average;
+}
+
+
+static SANE_Status
+gl124_offset_calibration (Genesys_Device * dev)
+{
+ SANE_Status status = SANE_STATUS_GOOD;
+ uint8_t *first_line, *second_line, reg0a;
+ unsigned int channels, bpp;
+ char title[32];
+ int pass = 0, avg, total_size;
+ int topavg, bottomavg, resolution, lines;
+ int top, bottom, black_pixels, pixels;
+
+ DBGSTART;
+
+ /* no gain nor offset for TI AFE */
+ RIE (sanei_genesys_read_register (dev, REG0A, &reg0a));
+ if(((reg0a & REG0A_SIFSEL)>>REG0AS_SIFSEL)==3)
+ {
+ DBGCOMPLETED;
+ return status;
+ }
+
+ /* offset calibration is always done in color mode */
+ channels = 3;
+ resolution=dev->sensor.optical_res;
+ dev->calib_pixels = dev->sensor.sensor_pixels;
+ lines=1;
+ bpp=8;
+ pixels= (dev->sensor.sensor_pixels*resolution) / dev->sensor.optical_res;
+ black_pixels = (dev->sensor.black_pixels * resolution) / dev->sensor.optical_res;
+ DBG (DBG_io2, "gl124_offset_calibration: black_pixels=%d\n", black_pixels);
+
+ status = gl124_init_scan_regs (dev,
+ dev->calib_reg,
+ resolution,
+ resolution,
+ 0,
+ 0,
+ pixels,
+ lines,
+ bpp,
+ channels,
+ dev->settings.color_filter,
+ SCAN_FLAG_DISABLE_SHADING |
+ SCAN_FLAG_DISABLE_GAMMA |
+ SCAN_FLAG_SINGLE_LINE |
+ SCAN_FLAG_IGNORE_LINE_DISTANCE);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (DBG_error,
+ "gl124_offset_calibration: failed to setup scan: %s\n",
+ sane_strstatus (status));
+ return status;
+ }
+ gl124_set_motor_power (dev->calib_reg, SANE_FALSE);
+
+ /* allocate memory for scans */
+ total_size = pixels * channels * lines * (bpp/8); /* colors * bytes_per_color * scan lines */
+
+ first_line = malloc (total_size);
+ if (!first_line)
+ return SANE_STATUS_NO_MEM;
+
+ second_line = malloc (total_size);
+ if (!second_line)
+ {
+ free (first_line);
+ return SANE_STATUS_NO_MEM;
+ }
+
+ /* init gain */
+ dev->frontend.gain[0] = 0;
+ dev->frontend.gain[1] = 0;
+ dev->frontend.gain[2] = 0;
+
+ /* scan with no move */
+ bottom = 10;
+ dev->frontend.offset[0] = bottom;
+ dev->frontend.offset[1] = bottom;
+ dev->frontend.offset[2] = bottom;
+
+ RIEF2 (gl124_set_fe(dev, AFE_SET), first_line, second_line);
+ RIEF2 (dev->model->cmd_set->bulk_write_register (dev, dev->calib_reg, GENESYS_GL124_MAX_REGS), first_line, second_line);
+ DBG (DBG_info, "gl124_offset_calibration: starting first line reading\n");
+ RIEF2 (gl124_begin_scan (dev, dev->calib_reg, SANE_TRUE), first_line, second_line);
+ RIEF2 (sanei_genesys_read_data_from_scanner (dev, first_line, total_size), first_line, second_line);
+ if (DBG_LEVEL >= DBG_data)
+ {
+ snprintf(title,20,"offset%03d.pnm",bottom);
+ sanei_genesys_write_pnm_file (title, first_line, bpp, channels, pixels, lines);
+ }
+
+ bottomavg = dark_average (first_line, pixels, lines, channels, black_pixels);
+ DBG (DBG_io2, "gl124_offset_calibration: bottom avg=%d\n", bottomavg);
+
+ /* now top value */
+ top = 255;
+ dev->frontend.offset[0] = top;
+ dev->frontend.offset[1] = top;
+ dev->frontend.offset[2] = top;
+ RIEF2 (gl124_set_fe(dev, AFE_SET), first_line, second_line);
+ RIEF2 (dev->model->cmd_set->bulk_write_register (dev, dev->calib_reg, GENESYS_GL124_MAX_REGS), first_line, second_line);
+ DBG (DBG_info, "gl124_offset_calibration: starting second line reading\n");
+ RIEF2 (gl124_begin_scan (dev, dev->calib_reg, SANE_TRUE), first_line, second_line);
+ RIEF2 (sanei_genesys_read_data_from_scanner (dev, second_line, total_size), first_line, second_line);
+
+ topavg = dark_average (second_line, pixels, lines, channels, black_pixels);
+ DBG (DBG_io2, "gl124_offset_calibration: top avg=%d\n", topavg);
+
+ /* loop until acceptable level */
+ while ((pass < 32) && (top - bottom > 1))
+ {
+ pass++;
+
+ /* settings for new scan */
+ dev->frontend.offset[0] = (top + bottom) / 2;
+ dev->frontend.offset[1] = (top + bottom) / 2;
+ dev->frontend.offset[2] = (top + bottom) / 2;
+
+ /* scan with no move */
+ RIEF2 (gl124_set_fe(dev, AFE_SET), first_line, second_line);
+ RIEF2 (dev->model->cmd_set->bulk_write_register (dev, dev->calib_reg, GENESYS_GL124_MAX_REGS), first_line, second_line);
+ DBG (DBG_info, "gl124_offset_calibration: starting second line reading\n");
+ RIEF2 (gl124_begin_scan (dev, dev->calib_reg, SANE_TRUE), first_line, second_line);
+ RIEF2 (sanei_genesys_read_data_from_scanner (dev, second_line, total_size), first_line, second_line);
+
+ if (DBG_LEVEL >= DBG_data)
+ {
+ sprintf (title, "offset%03d.pnm", dev->frontend.offset[1]);
+ sanei_genesys_write_pnm_file (title, second_line, bpp, channels, pixels, lines);
+ }
+
+ avg = dark_average (second_line, pixels, lines, channels, black_pixels);
+ DBG (DBG_info, "gl124_offset_calibration: avg=%d offset=%d\n", avg,
+ dev->frontend.offset[1]);
+
+ /* compute new boundaries */
+ if (topavg == avg)
+ {
+ topavg = avg;
+ top = dev->frontend.offset[1];
+ }
+ else
+ {
+ bottomavg = avg;
+ bottom = dev->frontend.offset[1];
+ }
+ }
+ DBG (DBG_info, "gl124_offset_calibration: offset=(%d,%d,%d)\n", dev->frontend.offset[0], dev->frontend.offset[1], dev->frontend.offset[2]);
+
+ /* cleanup before return */
+ free (first_line);
+ free (second_line);
+
+ DBGCOMPLETED;
+ return SANE_STATUS_GOOD;
+}
+
+
+/* alternative coarse gain calibration
+ this on uses the settings from offset_calibration and
+ uses only one scanline
+ */
+/*
+ with offset and coarse calibration we only want to get our input range into
+ a reasonable shape. the fine calibration of the upper and lower bounds will
+ be done with shading.
+ */
+static SANE_Status
+gl124_coarse_gain_calibration (Genesys_Device * dev, int dpi)
+{
+ int pixels;
+ int total_size;
+ uint8_t *line, reg0a;
+ int i, j, channels;
+ SANE_Status status = SANE_STATUS_GOOD;
+ int max[3];
+ float gain[3],coeff;
+ int val, code, lines;
+ int resolution;
+ int bpp;
+
+ DBG (DBG_proc, "gl124_coarse_gain_calibration: dpi = %d\n", dpi);
+
+ /* no gain nor offset for TI AFE */
+ RIE (sanei_genesys_read_register (dev, REG0A, &reg0a));
+ if(((reg0a & REG0A_SIFSEL)>>REG0AS_SIFSEL)==3)
+ {
+ DBGCOMPLETED;
+ return status;
+ }
+
+ /* coarse gain calibration is always done in color mode */
+ channels = 3;
+
+ /* follow CKSEL */
+ if(dev->settings.xres<dev->sensor.optical_res)
+ {
+ coeff=0.9;
+ /*resolution=dev->sensor.optical_res/2;*/
+ resolution=dev->sensor.optical_res;
+ }
+ else
+ {
+ resolution=dev->sensor.optical_res;
+ coeff=1.0;
+ }
+ lines=10;
+ bpp=8;
+ pixels = (dev->sensor.sensor_pixels * resolution) / dev->sensor.optical_res;
+
+ status = gl124_init_scan_regs (dev,
+ dev->calib_reg,
+ resolution,
+ resolution,
+ 0,
+ 0,
+ pixels,
+ lines,
+ bpp,
+ channels,
+ dev->settings.color_filter,
+ SCAN_FLAG_DISABLE_SHADING |
+ SCAN_FLAG_DISABLE_GAMMA |
+ SCAN_FLAG_SINGLE_LINE |
+ SCAN_FLAG_IGNORE_LINE_DISTANCE);
+ gl124_set_motor_power (dev->calib_reg, SANE_FALSE);
+
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (DBG_error,
+ "gl124_coarse_calibration: failed to setup scan: %s\n",
+ sane_strstatus (status));
+ return status;
+ }
+
+ RIE (dev->model->cmd_set->bulk_write_register
+ (dev, dev->calib_reg, GENESYS_GL124_MAX_REGS));
+
+ total_size = pixels * channels * (16/bpp) * lines;
+
+ line = malloc (total_size);
+ if (!line)
+ return SANE_STATUS_NO_MEM;
+
+ RIEF (gl124_set_fe(dev, AFE_SET), line);
+ RIEF (gl124_begin_scan (dev, dev->calib_reg, SANE_TRUE), line);
+ RIEF (sanei_genesys_read_data_from_scanner (dev, line, total_size), line);
+
+ if (DBG_LEVEL >= DBG_data)
+ sanei_genesys_write_pnm_file ("coarse.pnm", line, bpp, channels, pixels, lines);
+
+ /* average value on each channel */
+ for (j = 0; j < channels; j++)
+ {
+ max[j] = 0;
+ for (i = pixels/4; i < (pixels*3/4); i++)
+ {
+ if(bpp==16)
+ {
+ if (dev->model->is_cis)
+ val =
+ line[i * 2 + j * 2 * pixels + 1] * 256 +
+ line[i * 2 + j * 2 * pixels];
+ else
+ val =
+ line[i * 2 * channels + 2 * j + 1] * 256 +
+ line[i * 2 * channels + 2 * j];
+ }
+ else
+ {
+ if (dev->model->is_cis)
+ val = line[i + j * pixels];
+ else
+ val = line[i * channels + j];
+ }
+
+ max[j] += val;
+ }
+ max[j] = max[j] / (pixels/2);
+
+ gain[j] = ((float) dev->sensor.gain_white_ref*coeff) / max[j];
+
+ /* turn logical gain value into gain code, checking for overflow */
+ code = 283 - 208 / gain[j];
+ if (code > 255)
+ code = 255;
+ else if (code < 0)
+ code = 0;
+ dev->frontend.gain[j] = code;
+
+ DBG (DBG_proc,
+ "gl124_coarse_gain_calibration: channel %d, max=%d, gain = %f, setting:%d\n",
+ j, max[j], gain[j], dev->frontend.gain[j]);
+ }
+
+ if (dev->model->is_cis)
+ {
+ if (dev->frontend.gain[0] > dev->frontend.gain[1])
+ dev->frontend.gain[0] = dev->frontend.gain[1];
+ if (dev->frontend.gain[0] > dev->frontend.gain[2])
+ dev->frontend.gain[0] = dev->frontend.gain[2];
+ dev->frontend.gain[2] = dev->frontend.gain[1] = dev->frontend.gain[0];
+ }
+
+ if (channels == 1)
+ {
+ dev->frontend.gain[0] = dev->frontend.gain[1];
+ dev->frontend.gain[2] = dev->frontend.gain[1];
+ }
+
+ free (line);
+
+ RIE (gl124_stop_action (dev));
+
+ status = gl124_slow_back_home (dev, SANE_TRUE);
+
+ DBGCOMPLETED;
+ return status;
+}
+
+/*
+ * wait for lamp warmup by scanning the same line until difference
+ * between 2 scans is below a threshold
+ */
+static SANE_Status
+gl124_init_regs_for_warmup (Genesys_Device * dev,
+ Genesys_Register_Set * reg,
+ int *channels, int *total_size)
+{
+ int num_pixels;
+ SANE_Status status = SANE_STATUS_GOOD;
+
+ DBGSTART;
+ if (dev == NULL || reg == NULL || channels == NULL || total_size == NULL)
+ return SANE_STATUS_INVAL;
+
+ *channels=3;
+
+ memcpy (reg, dev->reg, (GENESYS_GL124_MAX_REGS + 1) * sizeof (Genesys_Register_Set));
+ status = gl124_init_scan_regs (dev,
+ reg,
+ dev->sensor.optical_res,
+ dev->motor.base_ydpi,
+ dev->sensor.sensor_pixels/4,
+ 0,
+ dev->sensor.sensor_pixels/2,
+ 1,
+ 8,
+ *channels,
+ dev->settings.color_filter,
+ SCAN_FLAG_DISABLE_SHADING |
+ SCAN_FLAG_DISABLE_GAMMA |
+ SCAN_FLAG_SINGLE_LINE |
+ SCAN_FLAG_IGNORE_LINE_DISTANCE);
+
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (DBG_error,
+ "gl124_init_regs_for_warmup: failed to setup scan: %s\n",
+ sane_strstatus (status));
+ return status;
+ }
+
+ num_pixels = dev->current_setup.pixels;
+
+ *total_size = num_pixels * 3 * 1; /* colors * bytes_per_color * scan lines */
+
+ gl124_set_motor_power (reg, SANE_FALSE);
+ RIE (dev->model->cmd_set->bulk_write_register (dev, reg, GENESYS_GL124_MAX_REGS));
+
+ DBGCOMPLETED;
+ return SANE_STATUS_GOOD;
+}
+
+/**
+ * set up GPIO/GPOE for idle state
+WRITE GPIO[17-21]= GPIO19
+WRITE GPOE[17-21]= GPOE21 GPOE20 GPOE19 GPOE18
+genesys_write_register(0xa8,0x3e)
+GPIO(0xa8)=0x3e
+ */
+static SANE_Status
+gl124_init_gpio (Genesys_Device * dev)
+{
+ SANE_Status status = SANE_STATUS_GOOD;
+ int idx;
+
+ DBGSTART;
+
+ /* per model GPIO layout */
+ if (strcmp (dev->model->name, "canon-lide-110") == 0)
+ {
+ idx = 0;
+ }
+ else
+ { /* canon LiDE 210 case */
+ idx = 1;
+ }
+
+ RIE (sanei_genesys_write_register (dev, REG31, gpios[idx].r31));
+ RIE (sanei_genesys_write_register (dev, REG32, gpios[idx].r32));
+ RIE (sanei_genesys_write_register (dev, REG33, gpios[idx].r33));
+ RIE (sanei_genesys_write_register (dev, REG34, gpios[idx].r34));
+ RIE (sanei_genesys_write_register (dev, REG35, gpios[idx].r35));
+ RIE (sanei_genesys_write_register (dev, REG36, gpios[idx].r36));
+ RIE (sanei_genesys_write_register (dev, REG38, gpios[idx].r38));
+
+ DBGCOMPLETED;
+ return status;
+}
+
+/**
+ * set memory layout by filling values in dedicated registers
+ */
+static SANE_Status
+gl124_init_memory_layout (Genesys_Device * dev)
+{
+ SANE_Status status = SANE_STATUS_GOOD;
+ int idx = 0;
+
+ DBGSTART;
+
+ /* point to per model memory layout */
+ if (strcmp (dev->model->name, "canon-lide-110") == 0)
+ {
+ idx = 0;
+ }
+ else
+ { /* canon LiDE 210 case */
+ idx = 1;
+ }
+
+ /* setup base address for shading data. */
+ /* values must be multiplied by 8192=0x4000 to give address on AHB */
+ /* R-Channel shading bank0 address setting for CIS */
+ sanei_genesys_write_register (dev, 0xd0, layouts[idx].rd0);
+ /* G-Channel shading bank0 address setting for CIS */
+ sanei_genesys_write_register (dev, 0xd1, layouts[idx].rd1);
+ /* B-Channel shading bank0 address setting for CIS */
+ sanei_genesys_write_register (dev, 0xd2, layouts[idx].rd2);
+
+ /* setup base address for scanned data. */
+ /* values must be multiplied by 1024*2=0x0800 to give address on AHB */
+ /* R-Channel ODD image buffer 0x0124->0x92000 */
+ /* size for each buffer is 0x16d*1k word */
+ sanei_genesys_write_register (dev, 0xe0, layouts[idx].re0);
+ sanei_genesys_write_register (dev, 0xe1, layouts[idx].re1);
+/* R-Channel ODD image buffer end-address 0x0291->0x148800 => size=0xB6800*/
+ sanei_genesys_write_register (dev, 0xe2, layouts[idx].re2);
+ sanei_genesys_write_register (dev, 0xe3, layouts[idx].re3);
+
+ /* R-Channel EVEN image buffer 0x0292 */
+ sanei_genesys_write_register (dev, 0xe4, layouts[idx].re4);
+ sanei_genesys_write_register (dev, 0xe5, layouts[idx].re5);
+/* R-Channel EVEN image buffer end-address 0x03ff*/
+ sanei_genesys_write_register (dev, 0xe6, layouts[idx].re6);
+ sanei_genesys_write_register (dev, 0xe7, layouts[idx].re7);
+
+/* same for green, since CIS, same addresses */
+ sanei_genesys_write_register (dev, 0xe8, layouts[idx].re0);
+ sanei_genesys_write_register (dev, 0xe9, layouts[idx].re1);
+ sanei_genesys_write_register (dev, 0xea, layouts[idx].re2);
+ sanei_genesys_write_register (dev, 0xeb, layouts[idx].re3);
+ sanei_genesys_write_register (dev, 0xec, layouts[idx].re4);
+ sanei_genesys_write_register (dev, 0xed, layouts[idx].re5);
+ sanei_genesys_write_register (dev, 0xee, layouts[idx].re6);
+ sanei_genesys_write_register (dev, 0xef, layouts[idx].re7);
+
+/* same for blue, since CIS, same addresses */
+ sanei_genesys_write_register (dev, 0xf0, layouts[idx].re0);
+ sanei_genesys_write_register (dev, 0xf1, layouts[idx].re1);
+ sanei_genesys_write_register (dev, 0xf2, layouts[idx].re2);
+ sanei_genesys_write_register (dev, 0xf3, layouts[idx].re3);
+ sanei_genesys_write_register (dev, 0xf4, layouts[idx].re4);
+ sanei_genesys_write_register (dev, 0xf5, layouts[idx].re5);
+ sanei_genesys_write_register (dev, 0xf6, layouts[idx].re6);
+ sanei_genesys_write_register (dev, 0xf7, layouts[idx].re7);
+
+ DBGCOMPLETED;
+ return status;
+}
+
+/**
+ * initialize backend and ASIC : registers, motor tables, and gamma tables
+ * then ensure scanner's head is at home
+ */
+#ifndef UNIT_TESTING
+static
+#endif
+SANE_Status
+gl124_init (Genesys_Device * dev)
+{
+ SANE_Status status;
+
+ DBG_INIT ();
+ DBGSTART;
+
+ status=sanei_genesys_asic_init(dev, GENESYS_GL124_MAX_REGS);
+
+ DBGCOMPLETED;
+ return status;
+}
+
+
+/* *
+ * initialize ASIC from power on condition
+ */
+static SANE_Status
+gl124_boot (Genesys_Device * dev, SANE_Bool cold)
+{
+ SANE_Status status;
+ uint8_t val;
+
+ DBGSTART;
+
+ /* reset ASIC in case of cold boot */
+ if(cold)
+ {
+ RIE (sanei_genesys_write_register (dev, 0x0e, 0x01));
+ RIE (sanei_genesys_write_register (dev, 0x0e, 0x00));
+ }
+
+ /* enable GPOE 17 */
+ RIE (sanei_genesys_write_register (dev, 0x36, 0x01));
+
+ /* set GPIO 17 */
+ RIE (sanei_genesys_read_register (dev, 0x33, &val));
+ val |= 0x01;
+ RIE (sanei_genesys_write_register (dev, 0x33, val));
+
+ /* test CHKVER */
+ RIE (sanei_genesys_read_register (dev, REG100, &val));
+ if (val & REG100_CHKVER)
+ {
+ RIE (sanei_genesys_read_register (dev, 0x00, &val));
+ DBG (DBG_info,
+ "gl124_cold_boot: reported version for genesys chip is 0x%02x\n",
+ val);
+ }
+
+ /* Set default values for registers */
+ gl124_init_registers (dev);
+
+ /* Write initial registers */
+ RIE (dev->model->cmd_set->bulk_write_register (dev, dev->reg, GENESYS_GL124_MAX_REGS));
+
+ /* tune reg 0B */
+ val = REG0B_30MHZ | REG0B_ENBDRAM | REG0B_64M;
+ RIE (sanei_genesys_write_register (dev, REG0B, val));
+ dev->reg[reg_0x0b].address = 0x00;
+
+ /* set up end access */
+ RIE (sanei_genesys_write_0x8c (dev, 0x10, 0x0b));
+ RIE (sanei_genesys_write_0x8c (dev, 0x13, 0x0e));
+
+ /* CIS_LINE */
+ SETREG (0x08, REG08_CIS_LINE);
+ RIE (sanei_genesys_write_register (dev, 0x08, dev->reg[reg_0x08].value));
+
+ /* setup gpio */
+ RIE (gl124_init_gpio (dev));
+
+ /* setup internal memory layout */
+ RIE (gl124_init_memory_layout (dev));
+
+ DBGCOMPLETED;
+ return SANE_STATUS_GOOD;
+}
+
+
+static SANE_Status
+gl124_update_hardware_sensors (Genesys_Scanner * s)
+{
+ /* do what is needed to get a new set of events, but try to not loose
+ any of them.
+ */
+ SANE_Status status = SANE_STATUS_GOOD;
+ uint8_t val=0;
+
+ RIE (sanei_genesys_read_register (s->dev, REG31, &val));
+
+ /* TODO : for the next scanner special case,
+ * add another per scanner button profile struct to avoid growing
+ * hard-coded button mapping here.
+ */
+ if(s->dev->model->gpo_type == GPO_CANONLIDE110)
+ {
+ if (s->val[OPT_SCAN_SW].b == s->last_val[OPT_SCAN_SW].b)
+ s->val[OPT_SCAN_SW].b = (val & 0x01) == 0;
+ if (s->val[OPT_FILE_SW].b == s->last_val[OPT_FILE_SW].b)
+ s->val[OPT_FILE_SW].b = (val & 0x08) == 0;
+ if (s->val[OPT_EMAIL_SW].b == s->last_val[OPT_EMAIL_SW].b)
+ s->val[OPT_EMAIL_SW].b = (val & 0x04) == 0;
+ if (s->val[OPT_COPY_SW].b == s->last_val[OPT_COPY_SW].b)
+ s->val[OPT_COPY_SW].b = (val & 0x02) == 0;
+ }
+ else
+ { /* LiDE 210 case */
+ if (s->val[OPT_EXTRA_SW].b == s->last_val[OPT_EXTRA_SW].b)
+ s->val[OPT_EXTRA_SW].b = (val & 0x01) == 0;
+ if (s->val[OPT_SCAN_SW].b == s->last_val[OPT_SCAN_SW].b)
+ s->val[OPT_SCAN_SW].b = (val & 0x02) == 0;
+ if (s->val[OPT_COPY_SW].b == s->last_val[OPT_COPY_SW].b)
+ s->val[OPT_COPY_SW].b = (val & 0x04) == 0;
+ if (s->val[OPT_EMAIL_SW].b == s->last_val[OPT_EMAIL_SW].b)
+ s->val[OPT_EMAIL_SW].b = (val & 0x08) == 0;
+ if (s->val[OPT_FILE_SW].b == s->last_val[OPT_FILE_SW].b)
+ s->val[OPT_FILE_SW].b = (val & 0x10) == 0;
+ }
+ return status;
+}
+
+
+/** the gl124 command set */
+static Genesys_Command_Set gl124_cmd_set = {
+ "gl124-generic", /* the name of this set */
+
+ gl124_init,
+ gl124_init_regs_for_warmup,
+ gl124_init_regs_for_coarse_calibration,
+ gl124_init_regs_for_shading,
+ gl124_init_regs_for_scan,
+
+ gl124_get_filter_bit,
+ gl124_get_lineart_bit,
+ gl124_get_bitset_bit,
+ gl124_get_gain4_bit,
+ gl124_get_fast_feed_bit,
+ gl124_test_buffer_empty_bit,
+ gl124_test_motor_flag_bit,
+
+ gl124_bulk_full_size,
+
+ gl124_set_fe,
+ gl124_set_powersaving,
+ gl124_save_power,
+
+ gl124_set_motor_power,
+ gl124_set_lamp_power,
+
+ gl124_begin_scan,
+ gl124_end_scan,
+
+ sanei_genesys_send_gamma_table,
+
+ gl124_search_start_position,
+
+ gl124_offset_calibration,
+ gl124_coarse_gain_calibration,
+ gl124_led_calibration,
+
+ gl124_slow_back_home,
+
+ sanei_genesys_bulk_write_register,
+ NULL,
+ gl124_bulk_read_data,
+
+ gl124_update_hardware_sensors,
+
+ /* no sheetfed support for now */
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+
+ sanei_genesys_is_compatible_calibration,
+ NULL,
+ gl124_send_shading_data,
+ gl124_calculate_current_setup,
+ gl124_boot
+};
+
+SANE_Status
+sanei_gl124_init_cmd_set (Genesys_Device * dev)
+{
+ dev->model->cmd_set = &gl124_cmd_set;
+ return SANE_STATUS_GOOD;
+}
+
+/* vim: set sw=2 cino=>2se-1sn-1s{s^-1st0(0u0 smarttab expandtab: */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-13 12:41:40 +0000