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drv_picoLCDGraphic.c: alternative use of keypad widgets (instead of GPIO)

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git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@1118 3ae390bd-cb1e-0410-b409-cd5a39f66f1f
This commit is contained in:
mzuther
2010-04-18 17:22:41 +00:00
parent 299b4fb7df
commit 303e1ef136
1 changed files with 78 additions and 2 deletions
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drv_picoLCDGraphic.c
+78 -2
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@@ -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);
}