add new driver (st2205) by Jeroen/Sprite_tm

git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@858 3ae390bd-cb1e-0410-b409-cd5a39f66f1f

diff --git a/drv_st2205.c b/drv_st2205.c
new file mode 100644 (file)
index 0000000..02d82ca
--- /dev/null
+++ b/drv_st2205.c
@@ -0,0 +1,245 @@
+/* $Id: drv_Sample.c 840 2007-09-09 12:17:42Z michael $
+ * $URL: https://ssl.bulix.org/svn/lcd4linux/trunk/drv_Sample.c $
+ *
+ * ST2205U-driven hacked picture frame driver.
+ * See http://picframe.spritesserver.nl/ for more info.
+ * 
+ * Copyright (C) 2008 Jeroen Domburg <picframe@spritesmods.com>
+ * Modified from sample code by:
+ * Copyright (C) 2005 Michael Reinelt <michael@reinelt.co.at>
+ * Copyright (C) 2005, 2006, 2007 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net>
+ *
+ * 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_st2205
+ *
+ */
+
+#include "config.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+
+#include <st2205.h>
+
+#include "debug.h"
+#include "cfg.h"
+#include "qprintf.h"
+#include "udelay.h"
+#include "plugin.h"
+#include "widget.h"
+#include "widget_text.h"
+#include "widget_icon.h"
+#include "widget_bar.h"
+#include "drv.h"
+
+#include "drv_generic_graphic.h"
+
+static char Name[] = "st2205";
+/* libst2205 handle */
+static st2205_handle *h;
+/* Display data */
+static unsigned char *fb;
+
+static int drv_st2205_open(const char *section)
+{
+    char *dev;
+
+    dev = cfg_get(section, "Port", NULL);
+    if (dev == NULL || *dev == '\0') {
+       error("st2205: no '%s.Port' entry from %s", section, cfg_source());
+       return -1;
+    }
+
+    h = st2205_open(dev);
+    if (h == NULL)
+       return -1;
+
+    return 0;
+}
+
+
+static int drv_st2205_close(void)
+{
+    st2205_close(h);
+
+    return 0;
+}
+
+
+static void drv_st2205_blit(const int row, const int col, const int height, const int width)
+{
+    int r, c;
+    RGBA p;
+    for (r = row; r < row + height; r++) {
+       for (c = col; c < col + width; c++) {
+           p = drv_generic_graphic_rgb(r, c);
+           fb[(r * h->width + c) * 3 + 0] = p.R;
+           fb[(r * h->width + c) * 3 + 1] = p.G;
+           fb[(r * h->width + c) * 3 + 2] = p.B;
+       }
+    }
+    st2205_send_data(h, fb);
+}
+
+
+/* start graphic display */
+static int drv_st2205_start2(const char *section)
+{
+    char *s;
+
+    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;
+    }
+
+    /* Fixme: provider other fonts someday... */
+    if (XRES != 6 && YRES != 8) {
+       error("%s: bad Font '%s' from %s (only 6x8 at the moment)", Name, s, cfg_source());
+       return -1;
+    }
+
+
+    /* open communication with the display */
+    if (drv_st2205_open(section) < 0) {
+       return -1;
+    }
+
+    /* you surely want to allocate a framebuffer or something... */
+    fb = malloc(h->height * h->width * 3);
+
+    /* set width/height from st2205 firmware specs */
+    DROWS = h->width;
+    DCOLS = h->height;
+
+    return 0;
+}
+
+/****************************************/
+/***            plugins               ***/
+/****************************************/
+
+static void plugin_backlight(RESULT * result, RESULT * arg1)
+{
+    int bl_on;
+    bl_on = (R2N(arg1) == 0 ? 0 : 1);
+    st2205_backlight(h, bl_on);
+    SetResult(&result, R_NUMBER, &bl_on);
+}
+
+
+/****************************************/
+/***        widget callbacks          ***/
+/****************************************/
+
+
+/* using drv_generic_text_draw(W) */
+/* using drv_generic_text_icon_draw(W) */
+/* using drv_generic_text_bar_draw(W) */
+/* using drv_generic_gpio_draw(W) */
+
+
+/****************************************/
+/***        exported functions        ***/
+/****************************************/
+
+
+/* list models */
+int drv_st2205_list(void)
+{
+    printf("generic");
+    return 0;
+}
+
+
+/* initialize driver & display */
+int drv_st2205_init2(const char *section, const int quiet)
+{
+    int ret;
+
+    /* real worker functions */
+    drv_generic_graphic_real_blit = drv_st2205_blit;
+
+    /* start display */
+    if ((ret = drv_st2205_start2(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();
+       }
+    }
+
+    /* register plugins */
+    AddFunction("LCD::backlight", 1, plugin_backlight);
+
+    return 0;
+}
+
+
+/* close driver & display */
+int drv_st2205_quit2(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");
+    drv_st2205_close();
+
+    return (0);
+}
+
+
+DRIVER drv_st2205 = {
+    .name = Name,
+    .list = drv_st2205_list,
+    .init = drv_st2205_init2,
+    .quit = drv_st2205_quit2,
+};