/* $OpenBSD: ss_mustek.c,v 1.27 2010/07/01 05:11:18 krw Exp $ */ /* $NetBSD: ss_mustek.c,v 1.4 1996/05/05 19:52:57 christos Exp $ */ /* * Copyright (c) 1995 Joachim Koenig-Baltes. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Joachim Koenig-Baltes. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* * special driver for MUSTEK flatbed scanners MFS 06000CX and MFS 12000CX * these scanners come with their own scsi card, containing an NCR53C400 * SCSI controller chip. I'm in the progress of writing a driver for this * card to work under NetBSD-current. I've hooked it up to a Seagate ST01 * hostadapter in the meantime, giving 350KB/sec for higher resolutions! * * I tried to connect it to my Adaptec 1542B, but with no success. It seems, * it does not like synchronous negotiation between Hostadapter and other * targets, but I could not turn this off for the 1542B. * * There is also an other reason why you would not like to connect it to your * favourite SCSI host adapter: The Mustek DOES NOT DISCONNECT. It will block * other traffic from the bus while a transfer is active. */ #include #include #include #include #include #include #include #include #include #include #include /* for cdevsw */ #include #include #include #include #include #include int mustek_set_params(struct ss_softc *, struct scan_io *); int mustek_trigger_scanner(struct ss_softc *); void mustek_minphys(struct ss_softc *, struct buf *); int mustek_read(struct ss_softc *, struct scsi_xfer *xs, struct buf *); void mustek_read_done(struct scsi_xfer *); int mustek_rewind_scanner(struct ss_softc *); /* only used internally */ int mustek_get_status(struct ss_softc *, int, int); void mustek_compute_sizes(struct ss_softc *); /* * structure for the special handlers */ struct ss_special mustek_special = { mustek_set_params, mustek_trigger_scanner, NULL, mustek_minphys, mustek_read, mustek_rewind_scanner, NULL, /* no adf support right now */ NULL /* no adf support right now */ }; /* * mustek_attach: attach special functions to ss */ void mustek_attach(ss, sa) struct ss_softc *ss; struct scsi_attach_args *sa; { #ifdef SCSIDEBUG struct scsi_link *sc_link = sa->sa_sc_link; #endif SC_DEBUG(sc_link, SDEV_DB1, ("mustek_attach: start\n")); ss->sio.scan_scanner_type = 0; printf("\n%s: ", ss->sc_dev.dv_xname); /* first, check the model which determines resolutions */ if (!bcmp(sa->sa_inqbuf->product, "MFS-06000CX", 11)) { ss->sio.scan_scanner_type = MUSTEK_06000CX; printf("Mustek 6000CX Flatbed 3-pass color scanner, 3 - 600 dpi\n"); } if (!bcmp(sa->sa_inqbuf->product, "MFS-12000CX", 11)) { ss->sio.scan_scanner_type = MUSTEK_12000CX; printf("Mustek 12000CX Flatbed 3-pass color scanner, 6 - 1200 dpi\n"); } SC_DEBUG(sc_link, SDEV_DB1, ("mustek_attach: scanner_type = %d\n", ss->sio.scan_scanner_type)); /* install special handlers */ ss->special = mustek_special; mustek_compute_sizes(ss); } /* * check the parameters if the mustek is capable of fulfilling it * but don't send the command to the scanner in case the user wants * to change parameters by more than one call */ int mustek_set_params(ss, sio) struct ss_softc *ss; struct scan_io *sio; { int error; /* * if the scanner is triggered, then rewind it */ if (ss->flags & SSF_TRIGGERED) { error = mustek_rewind_scanner(ss); if (error) return (error); } /* size constraints: 8.5" horizontally and 14" vertically */ #ifdef MUSTEK_INCH_SPEC /* sizes must be a multiple of 1/8" */ sio->scan_x_origin -= sio->scan_x_origin % 150; sio->scan_y_origin -= sio->scan_y_origin % 150; sio->scan_width -= sio->scan_width % 150; sio->scan_height -= sio->scan_height % 150; #endif if (sio->scan_width == 0 || sio->scan_x_origin + sio->scan_width > 10200 || sio->scan_height == 0 || sio->scan_y_origin + sio->scan_height > 16800) return (EINVAL); /* * for now, only realize the values for the MUSTEK_06000CX * in the future, values for the MUSTEK_12000CX will be implemented */ /* * resolution (dpi) must be <= 300 and a multiple of 3 or * between 300 and 600 and a multiple of 30 */ sio->scan_x_resolution -= sio->scan_x_resolution <= 300 ? sio->scan_x_resolution % 3 : sio->scan_x_resolution % 30; sio->scan_y_resolution -= sio->scan_y_resolution <= 300 ? sio->scan_y_resolution % 3 : sio->scan_y_resolution % 30; if (sio->scan_x_resolution < 3 || sio->scan_x_resolution > 600 || sio->scan_x_resolution != sio->scan_y_resolution) return (EINVAL); /* assume brightness values are between 64 and 136 in steps of 3 */ sio->scan_brightness -= (sio->scan_brightness - 64) % 3; if (sio->scan_brightness < 64 || sio->scan_brightness > 136) return (EINVAL); /* contrast values must be between 16 and 184 in steps of 7 */ sio->scan_contrast -= (sio->scan_contrast - 16) % 7; if (sio->scan_contrast < 16 || sio->scan_contrast > 184) return (EINVAL); /* * velocity: between 0 (fast) and 4 (slow) which will be mapped * to 100% = 4, 80% = 3, 60% = 2, 40% = 1, 20% = 0 * must be a multiple of 20 */ sio->scan_quality -= sio->scan_quality % 20; if (sio->scan_quality < 20 || sio->scan_quality > 100) return (EINVAL); switch (sio->scan_image_mode) { case SIM_BINARY_MONOCHROME: case SIM_DITHERED_MONOCHROME: case SIM_GRAYSCALE: case SIM_RED: case SIM_GREEN: case SIM_BLUE: break; default: return (EINVAL); } /* change ss_softc to the new values, but save ro-variables */ sio->scan_scanner_type = ss->sio.scan_scanner_type; bcopy(sio, &ss->sio, sizeof(struct scan_io)); mustek_compute_sizes(ss); return (0); } /* * trim the requested transfer to a multiple of the line size * this is called only from ssread() which guarantees, scanner is triggered * In the future, it will trim the transfer to not read to much at a time * because the mustek cannot disconnect. It will be calculated by the * resolution, the velocity and the number of bytes per line. */ void mustek_minphys(ss, bp) struct ss_softc *ss; struct buf *bp; { #ifdef SCSIDEBUG struct scsi_link *sc_link = ss->sc_link; #endif SC_DEBUG(sc_link, SDEV_DB1, ("mustek_minphys: before: %ld\n", bp->b_bcount)); bp->b_bcount -= bp->b_bcount % ((ss->sio.scan_pixels_per_line * ss->sio.scan_bits_per_pixel) / 8); SC_DEBUG(sc_link, SDEV_DB1, ("mustek_minphys: after: %ld\n", bp->b_bcount)); } /* * trigger the scanner to start a scan operation * this includes sending the mode- and window-data, starting the scanner * and getting the image size info */ int mustek_trigger_scanner(ss) struct ss_softc *ss; { struct mustek_mode_select_cmd mode_cmd; struct mustek_mode_select_data mode_data; struct mustek_set_window_cmd window_cmd; struct mustek_set_window_data window_data; struct mustek_start_scan_cmd start_scan_cmd; struct scsi_link *sc_link = ss->sc_link; int pixel_tlx, pixel_tly, pixel_brx, pixel_bry, paperlength; int error; mustek_compute_sizes(ss); SC_DEBUG(sc_link, SDEV_DB1, ("mustek_trigger_scanner\n")); /* * set the window params and send the scsi command */ bzero(&window_cmd, sizeof(window_cmd)); window_cmd.opcode = MUSTEK_SET_WINDOW; window_cmd.length = sizeof(window_data); bzero(&window_data, sizeof(window_data)); window_data.frame.header = MUSTEK_LINEART_BACKGROUND | MUSTEK_UNIT_SPEC; #ifdef MUSTEK_INCH_SPEC /* the positional values are all 1 byte because 256 / 8 = 32" */ pixel_tlx = ss->sio.scan_x_origin / 150; pixel_tly = ss->sio.scan_y_origin / 150; pixel_brx = pixel_tlx + ss->sio.scan_width / 150; pixel_bry = pixel_tly + ss->sio.scan_height / 150; #else pixel_tlx = (ss->sio.scan_x_origin * ss->sio.scan_x_resolution) / 1200; pixel_tly = (ss->sio.scan_y_origin * ss->sio.scan_y_resolution) / 1200; pixel_brx = pixel_tlx + (ss->sio.scan_width * ss->sio.scan_x_resolution) / 1200; pixel_bry = pixel_tly + (ss->sio.scan_height * ss->sio.scan_y_resolution) / 1200; #endif _lto2l(pixel_tlx, window_data.frame.tl_x); _lto2l(pixel_tly, window_data.frame.tl_y); _lto2l(pixel_brx, window_data.frame.br_x); _lto2l(pixel_bry, window_data.frame.br_y); #if MUSTEK_WINDOWS >= 1 window_data.window1 = window_data.frame; window_data.window1.header = MUSTEK_WINDOW_MASK | MUSTEK_UNIT_SPEC; #endif /* send the set window command to the scanner */ SC_DEBUG(sc_link, SDEV_DB1, ("mustek_set_parms: set_window\n")); error = scsi_scsi_cmd(sc_link, (struct scsi_generic *) &window_cmd, sizeof(window_cmd), (u_char *) &window_data, sizeof(window_data), SCSI_RETRIES, 5000, NULL, SCSI_DATA_OUT); if (error) return (error); /* * do what it takes to actualize the mode */ bzero(&mode_cmd, sizeof(mode_cmd)); mode_cmd.opcode = MUSTEK_MODE_SELECT; _lto2b(sizeof(mode_data), mode_cmd.length); bzero(&mode_data, sizeof(mode_data)); mode_data.mode = MUSTEK_MODE_MASK | MUSTEK_HT_PATTERN_BUILTIN | MUSTEK_UNIT_SPEC; if (ss->sio.scan_x_resolution <= 300) { mode_data.resolution = ss->sio.scan_x_resolution / 3; } else { /* * the resolution values is computed by modulo 100, but not * for 600dpi, where the value is 100 (a bit tricky, but ...) */ mode_data.resolution = ((ss->sio.scan_x_resolution - 1) % 100) + 1; } mode_data.brightness = (ss->sio.scan_brightness - 64) / 3; mode_data.contrast = (ss->sio.scan_contrast - 16) / 7; mode_data.grain = 0; mode_data.velocity = ss->sio.scan_quality / 20 - 1; #ifdef MUSTEK_INCH_SPEC paperlength = 14 * 8; /* 14" */ #else paperlength = 14 * ss->sio.scan_y_resolution; /* 14" */ #endif _lto2l(paperlength, mode_data.paperlength); SC_DEBUG(sc_link, SDEV_DB1, ("mustek_trigger_scanner: mode_select\n")); /* send the command to the scanner */ error = scsi_scsi_cmd(sc_link, (struct scsi_generic *) &mode_cmd, sizeof(mode_cmd), (u_char *) &mode_data, sizeof(mode_data), SCSI_RETRIES, 5000, NULL, SCSI_DATA_OUT); if (error) return (error); /* * now construct and send the start command */ bzero(&start_scan_cmd,sizeof(start_scan_cmd)); start_scan_cmd.opcode = MUSTEK_START_STOP; start_scan_cmd.mode = MUSTEK_SCAN_START; if (ss->sio.scan_x_resolution <= 300) start_scan_cmd.mode |= MUSTEK_RES_STEP_1; else start_scan_cmd.mode |= MUSTEK_RES_STEP_10; switch (ss->sio.scan_image_mode) { case SIM_BINARY_MONOCHROME: case SIM_DITHERED_MONOCHROME: start_scan_cmd.mode |= MUSTEK_BIT_MODE | MUSTEK_GRAY_FILTER; break; case SIM_GRAYSCALE: start_scan_cmd.mode |= MUSTEK_GRAY_MODE | MUSTEK_GRAY_FILTER; break; case SIM_RED: start_scan_cmd.mode |= MUSTEK_GRAY_MODE | MUSTEK_RED_FILTER; break; case SIM_GREEN: start_scan_cmd.mode |= MUSTEK_GRAY_MODE | MUSTEK_GREEN_FILTER; break; case SIM_BLUE: start_scan_cmd.mode |= MUSTEK_GRAY_MODE | MUSTEK_BLUE_FILTER; break; } /* send the command to the scanner */ SC_DEBUG(sc_link, SDEV_DB1, ("mustek_trigger_scanner: start_scan\n")); error = scsi_scsi_cmd(sc_link, (struct scsi_generic *) &start_scan_cmd, sizeof(start_scan_cmd), NULL, 0, SCSI_RETRIES, 5000, NULL, 0); if (error) return (error); /* * now check if scanner ready this time with update of size info * we wait here so that if the user issues a read directly afterwards, * the scanner will respond directly (otherwise we had to sleep with * a buffer locked in memory) */ SC_DEBUG(sc_link, SDEV_DB1, ("mustek_trigger_scanner: get_status\n")); error = mustek_get_status(ss, 60, 1); if (error) return (error); return (0); } /* * stop a scan operation in progress */ int mustek_rewind_scanner(ss) struct ss_softc *ss; { struct mustek_start_scan_cmd cmd; struct scsi_link *sc_link = ss->sc_link; int error; if (ss->sio.scan_window_size != 0) { /* * only if not all data has been read, the scanner has to be * stopped */ bzero(&cmd, sizeof(cmd)); cmd.opcode = MUSTEK_START_STOP; cmd.mode = MUSTEK_SCAN_STOP; /* send the command to the scanner */ SC_DEBUG(sc_link, SDEV_DB1, ("mustek_rewind_scanner: stop_scan\n")); error = scsi_scsi_cmd(sc_link, (struct scsi_generic *) &cmd, sizeof(cmd), NULL, 0, SCSI_RETRIES, 5000, NULL, 0); if (error) return (error); } SC_DEBUG(sc_link, SDEV_DB1, ("mustek_rewind_scanner: end\n")); return (0); } /* * read the requested number of bytes/lines from the scanner */ int mustek_read(ss, xs, bp) struct ss_softc *ss; struct scsi_xfer *xs; struct buf *bp; { struct mustek_read_cmd *cdb; u_long lines_to_read; SC_DEBUG(ss->sc_link, SDEV_DB1, ("mustek_read: start\n")); cdb = (struct mustek_read_cmd *)xs->cmd; xs->cmdlen = sizeof(*cdb); cdb->opcode = MUSTEK_READ; /* instead of the bytes, the mustek wants the number of lines */ lines_to_read = bp->b_bcount / ((ss->sio.scan_pixels_per_line * ss->sio.scan_bits_per_pixel) / 8); SC_DEBUG(ss->sc_link, SDEV_DB1, ("mustek_read: read %ld lines\n", lines_to_read)); _lto3b(lines_to_read, cdb->length); xs->data = bp->b_data; xs->datalen = bp->b_bcount; xs->flags |= SCSI_DATA_IN; xs->done = mustek_read_done; xs->cookie = bp; xs->bp = bp; scsi_xs_exec(xs); return (0); } void mustek_read_done(struct scsi_xfer *xs) { struct ss_softc *ss = xs->sc_link->device_softc; struct buf *bp = xs->cookie; int error, s; switch (xs->error) { case XS_NOERROR: ss->sio.scan_lines -= bp->b_bcount / ((ss->sio.scan_pixels_per_line * ss->sio.scan_bits_per_pixel) / 8); ss->sio.scan_window_size -= bp->b_bcount; bp->b_error = 0; bp->b_resid = xs->resid; break; case XS_NO_CCB: /* The adapter is busy, requeue the buf and try it later. */ BUFQ_REQUEUE(ss->sc_bufq, bp); scsi_xs_put(xs); SET(ss->flags, SSF_WAITING); timeout_add(&ss->timeout, 1); return; case XS_SENSE: case XS_SHORTSENSE: #ifdef SCSIDEBUG scsi_sense_print_debug(xs); #endif error = scsi_interpret_sense(xs); if (error == 0) { ss->sio.scan_lines -= bp->b_bcount / ((ss->sio.scan_pixels_per_line * ss->sio.scan_bits_per_pixel) / 8); ss->sio.scan_window_size -= bp->b_bcount; bp->b_error = 0; bp->b_resid = xs->resid; break; } if (error != ERESTART) xs->retries = 0; goto retry; case XS_BUSY: if (xs->retries) { if (scsi_delay(xs, 1) != ERESTART) xs->retries = 0; } goto retry; case XS_TIMEOUT: retry: if (xs->retries--) { scsi_xs_exec(xs); return; } /* FALLTHROUGH */ default: bp->b_error = EIO; bp->b_flags |= B_ERROR; bp->b_resid = bp->b_bcount; break; } s = splbio(); biodone(bp); splx(s); scsi_xs_put(xs); } /* * check if the scanner is ready to take commands * wait timeout seconds and try only every second * if update, then update picture size info * * returns EBUSY if scanner not ready */ int mustek_get_status(ss, timeout, update) struct ss_softc *ss; int timeout, update; { struct mustek_get_status_cmd cmd; struct mustek_get_status_data data; struct scsi_link *sc_link = ss->sc_link; int error, lines, bytes_per_line; bzero(&cmd, sizeof(cmd)); cmd.opcode = MUSTEK_GET_STATUS; cmd.length = sizeof(data); while (1) { SC_DEBUG(sc_link, SDEV_DB1, ("mustek_get_status: stat_cmd\n")); error = scsi_scsi_cmd(sc_link, (struct scsi_generic *) &cmd, sizeof(cmd), (u_char *) &data, sizeof(data), SCSI_RETRIES, 5000, NULL, SCSI_DATA_IN); if (error) return (error); if ((data.ready_busy == MUSTEK_READY) || (timeout-- <= 0)) break; /* please wait a second */ tsleep((caddr_t)mustek_get_status, PRIBIO + 1, "mtkrdy", hz); } if (update) { bytes_per_line = _2ltol(data.bytes_per_line); lines = _3ltol(data.lines); if (lines != ss->sio.scan_lines) { printf("mustek: lines actual(%d) != computed(%ld)\n", lines, ss->sio.scan_lines); return (EIO); } if (bytes_per_line * lines != ss->sio.scan_window_size) { printf("mustek: win-size actual(%d) != computed(%ld)\n", bytes_per_line * lines, ss->sio.scan_window_size); return (EIO); } SC_DEBUG(sc_link, SDEV_DB1, ("mustek_get_size: bpl=%ld, lines=%ld\n", (ss->sio.scan_pixels_per_line * ss->sio.scan_bits_per_pixel) / 8, ss->sio.scan_lines)); SC_DEBUG(sc_link, SDEV_DB1, ("window size = %ld\n", ss->sio.scan_window_size)); } SC_DEBUG(sc_link, SDEV_DB1, ("mustek_get_status: end\n")); if (data.ready_busy == MUSTEK_READY) return (0); else return (EBUSY); } /* * mustek_compute_sizes: compute window_size and lines for the picture * this function is called from different places in the code */ void mustek_compute_sizes(ss) struct ss_softc *ss; { switch (ss->sio.scan_image_mode) { case SIM_BINARY_MONOCHROME: case SIM_DITHERED_MONOCHROME: ss->sio.scan_bits_per_pixel = 1; break; case SIM_GRAYSCALE: case SIM_RED: case SIM_GREEN: case SIM_BLUE: ss->sio.scan_bits_per_pixel = 8; break; } /* * horizontal number of bytes is always a multiple of 2, * in 8-bit mode at least */ ss->sio.scan_pixels_per_line = (ss->sio.scan_width * ss->sio.scan_x_resolution) / 1200; if (ss->sio.scan_bits_per_pixel == 1) /* make it a multiple of 16, and thus of 2 bytes */ ss->sio.scan_pixels_per_line = (ss->sio.scan_pixels_per_line + 15) & 0xfffffff0; else ss->sio.scan_pixels_per_line = (ss->sio.scan_pixels_per_line + 1) & 0xfffffffe; ss->sio.scan_lines = (ss->sio.scan_height * ss->sio.scan_y_resolution) / 1200; ss->sio.scan_window_size = ss->sio.scan_lines * ((ss->sio.scan_pixels_per_line * ss->sio.scan_bits_per_pixel) / 8); }