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adding GPI to picoLCD for reading button events by Igor Mammedov <niallain@gmail.com>

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git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@898 3ae390bd-cb1e-0410-b409-cd5a39f66f1f
This commit is contained in:
michael
2008-10-06 04:29:12 +00:00
parent c43556a211
commit a809789851
1 changed files with 22 additions and 1 deletions
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drv_picoLCD.c
+22 -1
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@@ -162,6 +162,12 @@ static void drv_pL_send(unsigned char *data, int size)
usb_interrupt_write(lcd, USB_ENDPOINT_OUT + 1, (char *) data, size, 1000);
}
static int drv_pL_read(unsigned char *data, int size)
{
return usb_interrupt_read(lcd, USB_ENDPOINT_OUT + 1, (char *) data, size, 1000);
}
static void drv_pL_clear(void)
{
@@ -200,6 +206,20 @@ static int drv_pL_backlight(int backlight)
return backlight;
}
#define _USBLCD_MAX_DATA_LEN 24
#define IN_REPORT_KEY_STATE 0x11
static int drv_pL_gpi(int num)
{
int ret;
unsigned char read_packet[_USBLCD_MAX_DATA_LEN];
ret = drv_pL_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]);
return read_packet[1];
}
return 0;
}
static int drv_pL_gpo(int num, int val)
{
unsigned char cmd[2] = { 0x81 }; /* set GPO */
@@ -343,7 +363,6 @@ static void plugin_gpo(RESULT * result, RESULT * argv[])
SetResult(&result, R_NUMBER, &gpo);
}
/****************************************/
/*** widget callbacks ***/
/****************************************/
@@ -381,6 +400,7 @@ int drv_pL_init(const char *section, const int quiet)
CHARS = 8; /* number of user-defineable characters */
CHAR0 = 0; /* ASCII of first user-defineable char */
GPOS = 8;
GPIS = 1;
INVALIDATE = 1;
GOTO_COST = 2; /* number of bytes a goto command requires */
@@ -388,6 +408,7 @@ int drv_pL_init(const char *section, const int quiet)
drv_generic_text_real_write = drv_pL_write;
drv_generic_text_real_defchar = drv_pL_defchar;
drv_generic_gpio_real_set = drv_pL_gpo;
drv_generic_gpio_real_get = drv_pL_gpi;
/* start display */
if ((ret = drv_pL_start(section, quiet)) != 0)