diff options
Diffstat (limited to 'drv_SamsungSPF.c')
| -rw-r--r-- | drv_SamsungSPF.c | 511 |
1 files changed, 511 insertions, 0 deletions
diff --git a/drv_SamsungSPF.c b/drv_SamsungSPF.c new file mode 100644 index 0000000..4e548b3 --- /dev/null +++ b/drv_SamsungSPF.c @@ -0,0 +1,511 @@ +/* $Id: drv_SamsungSPF 975 2009-01-18 11:16:20Z michael $ + * $URL: https://ssl.bulix.org/svn/lcd4linux/trunk/drv_SamsungSPF.c $ + * + * SamsungSPF lcd4linux driver + * + * Copyright (C) 2012 Sascha Plazar <sascha@plazar.de> + * Copyright (C) 2005, 2006, 2007 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net> + * + * This driver is based on playusb.c created on Aug 2, 2010 by Andre Puschmann + * which is in turn based on code from Grace Woo: + * http://web.media.mit.edu/~gracewoo/stuff/picframe + * + * This file is part of LCD4Linux. + * + * LCD4Linux 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, or (at your option) + * any later version. + * + * LCD4Linux 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., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +/* + * + * exported fuctions: + * + * struct DRIVER drv_SamsungSPF + * + */ + +#include "config.h" + +#include <stdio.h> +#include <string.h> + +#include <usb.h> +#include <jpeglib.h> + +#include "debug.h" +#include "cfg.h" +#include "qprintf.h" +#include "timer.h" +#include "drv.h" + +/* graphic display? */ +#include "drv_generic_graphic.h" + +// Drivername for verbose output +static char Name[] = "SamsungSPF"; + +struct SPFdev { + const char type[64]; + const int vendorID; + struct { + const int storageMode; + const int monitorMode; + } productID; + const unsigned int xRes; + const unsigned int yRes; +}; + +static struct SPFdev spfDevices[] = { + { + .type = "SPF-75H", + .vendorID = 0x04e8, + .productID = {0x200e, 0x200f}, + .xRes = 800, + .yRes = 480, + }, + { + .type = "SPF-85H", + .vendorID = 0x04e8, + .productID = {0x2012, 0x2013}, + .xRes = 800, + .yRes = 600, + }, + { + .type = "SPF-107H", + .vendorID = 0x04e8, + .productID = {0x2027, 0x2028}, + .xRes = 1024, + .yRes = 600, + }, +}; + +static int numFrames = sizeof(spfDevices) / sizeof(spfDevices[0]); + +struct usb_device *myDev; +usb_dev_handle *myDevHandle; +struct SPFdev *myFrame; + +typedef struct { + unsigned char R, G, B; +} RGB; + +static struct { + RGB *buf; + int dirty; + int fbsize; +} image; + +static struct { + unsigned char *buf; + unsigned long int size; +} jpegImage; + + +/****************************************/ +/*** hardware dependant functions ***/ +/****************************************/ + + +/* please note that in-memory compression doesn't work satisfactory */ +int convert2JPG() +{ + struct jpeg_compress_struct cinfo; + struct jpeg_error_mgr jerr; + int row_stride; /* physical row width in buffer */ + JSAMPROW row_pointer[1]; /* pointer to a single row */ + + /* Initialize compression frame */ + cinfo.err = jpeg_std_error(&jerr); + jpeg_create_compress(&cinfo); + jpeg_mem_dest(&cinfo, &jpegImage.buf, &jpegImage.size); + + cinfo.image_width = myFrame->xRes; + cinfo.image_height = myFrame->yRes; + cinfo.input_components = sizeof(RGB); + cinfo.in_color_space = JCS_RGB; + + /* call some jpeg helpers */ + jpeg_set_defaults(&cinfo); + jpeg_set_quality(&cinfo, 100, 1); /*set the quality [0..100] */ + jpeg_start_compress(&cinfo, 1); + + row_stride = cinfo.image_width; + + /* Convert line by line */ + while (cinfo.next_scanline < cinfo.image_height) { + row_pointer[0] = (JSAMPROW) (image.buf + (cinfo.next_scanline * row_stride)); + jpeg_write_scanlines(&cinfo, row_pointer, 1); + } + + /* Finish compression and free internal memory */ + jpeg_finish_compress(&cinfo); + jpeg_destroy_compress(&cinfo); + + return 0; +} + + +// Find specific Samsung device +static void drv_SamsungSPF_find() +{ + info("%s: Searching SPF.", Name); + + /* open USB device */ + struct usb_bus *bus; + struct usb_device *dev; + + usb_init(); + usb_find_busses(); + usb_find_devices(); + + for (bus = usb_busses; bus; bus = bus->next) { + for (dev = bus->devices; dev; dev = dev->next) { + if (dev->descriptor.idVendor == myFrame->vendorID) { + if (dev->descriptor.idProduct == myFrame->productID.storageMode) { + + info("Samsung photoframe in Mass Storage mode found."); + myDev = dev; + + return; + } else if (dev->descriptor.idProduct == myFrame->productID.monitorMode) { + + info("Samsung photoframe in Custom Product mode found."); + myDev = dev; + + return; + } + } + } + } + + free(bus); + myDev = 0; +} + + +static int drv_SamsungSPF_open() +{ + if (!myDev) { + error("%s: No device specified!", Name); + return -1; + } + + int res = -1; + char buf[256]; + + if (myDev->descriptor.idProduct == myFrame->productID.storageMode) { + info("%s: Opening device and switching to monitor mode", Name); + + myDevHandle = usb_open(myDev); + + setuid(getuid()); + + strcpy(buf, "** no string **"); + res = usb_get_string_simple(myDevHandle, myDev->descriptor.iManufacturer, buf, sizeof(buf)); + debug("usb_get_string_simple => %d, %s", res, buf); + + memset(buf, 0, 256); + + res = usb_control_msg(myDevHandle, USB_TYPE_STANDARD | USB_ENDPOINT_IN, + USB_REQ_GET_DESCRIPTOR, 0xfe, 0xfe, buf, 0xfe, 1000); + /* usb_close( myDev ); */ + // Sleep some time before research + sleep(1); + drv_SamsungSPF_find(); + } else + info("%s: No device in storage mode found", Name); + + if (myDev->descriptor.idProduct == myFrame->productID.storageMode) { + error("%s: Was not able to switch to monitor mode!", Name); + return -1; + } + + if (myDev->descriptor.idProduct == myFrame->productID.monitorMode) { + info("%s: Device '%s' is now in monitor mode.", Name, myFrame->type); + myDevHandle = usb_open(myDev); + return 0; + } + + error("Unknown error: usb_control_msg() = %d", res); + return -1; +} + + +/* dummy function that sends something to the display */ +static int drv_SamsungSPF_send(char *data, unsigned int len) +{ + char usb_hdr[12] = { 0xa5, 0x5a, 0x18, 0x04, 0xff, 0xff, + 0xff, 0xff, 0x48, 0x00, 0x00, 0x00 + }; + char buffer[1] = { 0x0 }; + int usb_timeout = 1000; + int usb_endpoint = 0x2; + int ret; + + *(int *) (usb_hdr + 4) = len; + + debug("bytes_to_send: %d, offset: %d", len, 12); + + /* Send USB header */ + if ((ret = usb_bulk_write(myDevHandle, usb_endpoint, usb_hdr, 12, usb_timeout)) < 0) { + error("%s: Error occurred while writing data to device.", Name); + error("%s: usb_bulk_write returned: %d", Name, ret); + return -1; + } + + /* Send JPEG image */ + if ((ret = usb_bulk_write(myDevHandle, usb_endpoint, data, len, usb_timeout)) < 0) { + error("%s: Error occurred while writing data to device.", Name); + error("%s: usb_bulk_write returned: %d", Name, ret); + return -1; + } + + /* Finish transmission by sending zero */ + if ((ret = usb_bulk_write(myDevHandle, usb_endpoint, buffer, 1, usb_timeout)) < 0) { + error("%s: Error occurred while writing data to device.", Name); + error("%s: usb_bulk_write returned: %d", Name, ret); + return -1; + } + + return 0; +} + + +/* for graphic displays only */ +static void drv_SamsungSPF_blit(const int row, const int col, const int height, const int width) +{ + int r, c; + + for (r = row; r < row + height; r++) { + for (c = col; c < col + width; c++) { + RGB p1 = image.buf[r * myFrame->xRes + c]; + RGBA p2 = drv_generic_graphic_rgb(r, c); + if (p1.R != p2.R || p1.G != p2.G || p1.B != p2.B) { + image.buf[r * myFrame->xRes + c].R = p2.R; + image.buf[r * myFrame->xRes + c].G = p2.G; + image.buf[r * myFrame->xRes + c].B = p2.B; + image.dirty = 1; + } + } + } +} + + +static void drv_SamsungSPF_timer( __attribute__ ((unused)) + void *notused) +{ + if (image.dirty) { + debug("FB dirty, writing jpeg..."); + convert2JPG(); + + /* Sent image to display */ + if ((drv_SamsungSPF_send((char *) jpegImage.buf, jpegImage.size)) != 0) { + error("%s: Error occurred while sending jpeg image to device.", Name); + } + /* Clean dirty bit */ + image.dirty = 0; + + /* Free JPEG buffer since a new is allocated each time an image is + compressed */ + if (jpegImage.size) + free(jpegImage.buf); + jpegImage.size = 0; + } +} + + +/* start graphic display */ +static int drv_SamsungSPF_start(const char *section) +{ + int timerInterval = 1000; + char *s; + + cfg_number(section, "update", timerInterval, 0, -1, &timerInterval); + debug("Updating display every %dms", timerInterval); + + DROWS = myFrame->yRes; + DCOLS = myFrame->xRes; + info("%s: Using SPF with %dx%d pixels.", Name, DCOLS, DROWS); + + s = cfg_get(section, "Font", "6x8"); + if (s == NULL || *s == '\0') { + error("%s: no '%s.Font' entry from %s", Name, section, cfg_source()); + return -1; + } + + XRES = -1; + YRES = -1; + if (sscanf(s, "%dx%d", &XRES, &YRES) != 2 || XRES < 1 || YRES < 1) { + error("%s: bad Font '%s' from %s", Name, s, cfg_source()); + return -1; + } + + if (XRES < 6 || YRES < 8) { + error("%s: bad Font '%s' from %s (must be at least 6x8)", Name, s, cfg_source()); + return -1; + } + free(s); + + /* Allocate framebuffer */ + image.fbsize = myFrame->xRes * myFrame->yRes * sizeof(RGB); + image.buf = malloc(image.fbsize); + memset(image.buf, 128, image.fbsize); + image.dirty = 0; + + /* JPEG buffer is allocated by jpeglib */ + jpegImage.buf = 0; + jpegImage.size = 0; + + /* regularly transmit the image */ + timer_add(drv_SamsungSPF_timer, NULL, timerInterval, 0); + + return 0; +} + + + +/****************************************/ +/*** exported functions ***/ +/****************************************/ + + +/* list models */ +int drv_SamsungSPF_list(void) +{ + int i; + + printf("SamsungSPF driver, supported models ["); + for (i = 0; i < numFrames; i++) { + printf(spfDevices[i].type); + if (i < numFrames - 1) + printf(", "); + } + printf("]\n"); + + return 0; +} + + +/* initialize driver & display */ +/* use this function for a graphic display */ +int drv_SamsungSPF_init(const char *section, const int quiet) +{ + info("%s: Initializing SPF.", Name); + + char *s; + int i; + + myDev = 0; + myFrame = 0; + + // Look for model entry in config + s = cfg_get(section, "Model", NULL); + if (s == NULL || *s != '\0') { + s = cfg_get(section, "Model", NULL); + if (s == NULL || *s == '\0') { + + drv_SamsungSPF_list(); + error("%s: no '%s.Model' entry from %s", Name, section, cfg_source()); + return -1; + } + } + // Look for specified device + for (i = 0; i < numFrames; i++) { + if (strcasecmp(s, spfDevices[i].type) == 0) { + myFrame = &spfDevices[i]; + info("%s: Configured for model %s.", Name, spfDevices[i].type); + break; + } + } + + if (!myFrame) { + drv_SamsungSPF_list(); + error("%s: unknown model '%s'!", Name, s); + return -1; + } + + free(s); + + /* try to open USB device */ + drv_SamsungSPF_find(); + if (!myDev) { + error("%s: No Samsung '%s' found!", Name, myFrame->type); + return -1; + } + + /* open display and switch to monitor mode if necessary */ + if (drv_SamsungSPF_open() == -1) + return -1; + + int ret; + + /* real worker functions */ + drv_generic_graphic_real_blit = drv_SamsungSPF_blit; + + /* start display */ + if ((ret = drv_SamsungSPF_start(section)) != 0) + return ret; + + /* initialize generic graphic driver */ + if ((ret = drv_generic_graphic_init(section, Name)) != 0) + return ret; + + if (!quiet) { + char buffer[40]; + qprintf(buffer, sizeof(buffer), "%s %dx%d", Name, DCOLS, DROWS); + if (drv_generic_graphic_greet(buffer, NULL)) { + sleep(3); + drv_generic_graphic_clear(); + } + } + + return 0; +} + + +/* close driver & display */ +/* use this function for a graphic display */ +int drv_SamsungSPF_quit(const int quiet) +{ + + info("%s: shutting down.", Name); + + /* clear display */ + drv_generic_graphic_clear(); + + /* say goodbye... */ + if (!quiet) { + drv_generic_graphic_greet("goodbye!", NULL); + } + + drv_generic_graphic_quit(); + + debug("closing connection"); + printf("%s: Closing driver...\n", Name); + usb_close(myDevHandle); + free(myDev); + free(myDevHandle); + + return (0); +} + + +/* use this one for a graphic display */ +DRIVER drv_SamsungSPF = { + .name = Name, + .list = drv_SamsungSPF_list, + .init = drv_SamsungSPF_init, + .quit = drv_SamsungSPF_quit, +}; |