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authormzuther <mzuther@3ae390bd-cb1e-0410-b409-cd5a39f66f1f>2010-04-18 17:22:41 +0000
committermzuther <mzuther@3ae390bd-cb1e-0410-b409-cd5a39f66f1f>2010-04-18 17:22:41 +0000
commit303e1ef13683e1171f03a3e5b3a6f80c4650c8f5 (patch)
treee15041793fd2c48202c40899bbd259d9a2d0586c
parent299b4fb7dfccc166e5bbb34616b51da001ffb6d1 (diff)
downloadlcd4linux-303e1ef13683e1171f03a3e5b3a6f80c4650c8f5.tar.gz
drv_picoLCDGraphic.c: alternative use of keypad widgets (instead of GPIO)
git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@1118 3ae390bd-cb1e-0410-b409-cd5a39f66f1f
-rw-r--r--drv_picoLCDGraphic.c80
1 files changed, 78 insertions, 2 deletions
diff --git a/drv_picoLCDGraphic.c b/drv_picoLCDGraphic.c
index ccac030..2406710 100644
--- a/drv_picoLCDGraphic.c
+++ b/drv_picoLCDGraphic.c
@@ -58,6 +58,7 @@
#include "widget_text.h"
#include "widget_icon.h"
#include "widget_bar.h"
+#include "widget_keypad.h"
#include "drv.h"
#include "drv_generic_gpio.h"
#include "drv_generic_keypad.h"
@@ -281,6 +282,28 @@ static void drv_pLG_update_img()
}
+#define _USBLCD_MAX_DATA_LEN 24
+#define IN_REPORT_KEY_STATE 0x11
+static void drv_pLG_update_keypad()
+{
+ static int pressed_key = 0;
+
+ int ret;
+ unsigned char read_packet[_USBLCD_MAX_DATA_LEN];
+ ret = drv_pLG_read(read_packet, _USBLCD_MAX_DATA_LEN);
+ if ((ret > 0) && (read_packet[0] == IN_REPORT_KEY_STATE)) {
+ debug("picoLCD: pressed key= 0x%02x\n", read_packet[1]);
+ int new_pressed_key = read_packet[1];
+ if (pressed_key != new_pressed_key) {
+ /* negative values mark a key release */
+ drv_generic_keypad_press(-pressed_key);
+ drv_generic_keypad_press(new_pressed_key);
+ pressed_key = new_pressed_key;
+ }
+ }
+}
+
+
/* for graphic displays only */
static void drv_pLG_blit(const int row, const int col, const int height, const int width)
{
@@ -418,8 +441,6 @@ static int drv_pLG_backlight(int backlight)
return backlight;
}
-#define _USBLCD_MAX_DATA_LEN 24
-#define IN_REPORT_KEY_STATE 0x11
static int drv_pLG_gpi( __attribute__ ((unused))
int num)
{
@@ -539,6 +560,11 @@ static int drv_pLG_start(const char *section, const int quiet)
if (update > 0)
timer_add(drv_pLG_update_img, NULL, update, 0);
+ /* setup a timer that regularly checks the keypad for pressed or
+ released keys */
+ /* FIXME: make 100msec configurable */
+ timer_add(drv_pLG_update_keypad, NULL, 100, 0);
+
return 0;
}
@@ -594,6 +620,48 @@ int drv_pLG_list(void)
}
+static int drv_pLG_keypad(const int num)
+{
+ int val;
+ int new_num = num;
+
+ if (new_num == 0)
+ return 0;
+ else if (new_num > 0)
+ val = WIDGET_KEY_PRESSED;
+ else {
+ /* negative values mark a key release */
+ new_num = -num;
+ val = WIDGET_KEY_RELEASED;
+ }
+
+ switch (new_num) {
+ case 1:
+ val += WIDGET_KEY_CANCEL;
+ break;
+ case 2:
+ val += WIDGET_KEY_LEFT;
+ break;
+ case 3:
+ val += WIDGET_KEY_RIGHT;
+ break;
+ case 5:
+ val += WIDGET_KEY_UP;
+ break;
+ case 6:
+ val += WIDGET_KEY_CONFIRM;
+ break;
+ case 7:
+ val += WIDGET_KEY_DOWN;
+ break;
+ default:
+ error("%s: unknown keypad value %d", Name, num);
+ }
+
+ return val;
+}
+
+
/* initialize driver & display */
int drv_pLG_init(const char *section, const int quiet)
{
@@ -610,6 +678,7 @@ int drv_pLG_init(const char *section, const int quiet)
GPIS = 1;
/* real worker functions */
drv_generic_graphic_real_blit = drv_pLG_blit;
+ drv_generic_keypad_real_press = drv_pLG_keypad;
drv_generic_gpio_real_set = drv_pLG_gpo;
drv_generic_gpio_real_get = drv_pLG_gpi;
@@ -623,6 +692,12 @@ int drv_pLG_init(const char *section, const int quiet)
if ((ret = drv_generic_graphic_init(section, Name)) != 0)
return ret;
+
+ /* initialize generic key pad driver */
+ if ((ret = drv_generic_keypad_init(section, Name)) != 0)
+ return ret;
+
+
/* GPO's init */
if ((ret = drv_generic_gpio_init(section, Name)) != 0)
@@ -660,6 +735,7 @@ int drv_pLG_quit(const int quiet)
}
drv_generic_graphic_quit();
+ drv_generic_keypad_quit();
return (0);
}