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-rw-r--r--drv_Cwlinux.c147
1 files changed, 130 insertions, 17 deletions
diff --git a/drv_Cwlinux.c b/drv_Cwlinux.c
index 151140c..35a7a20 100644
--- a/drv_Cwlinux.c
+++ b/drv_Cwlinux.c
@@ -42,15 +42,18 @@
#include "debug.h"
#include "cfg.h"
#include "qprintf.h"
+#include "timer.h"
#include "plugin.h"
#include "widget.h"
#include "widget_text.h"
#include "widget_icon.h"
#include "widget_bar.h"
+#include "widget_keypad.h"
#include "drv.h"
#include "drv_generic_text.h"
#include "drv_generic_gpio.h"
#include "drv_generic_serial.h"
+#include "drv_generic_keypad.h"
static char Name[] = "Cwlinux";
@@ -58,13 +61,21 @@ static char Name[] = "Cwlinux";
static int Model;
static int Protocol;
+/* ring buffer for bytes received from the display */
+static unsigned char RingBuffer[256];
+static unsigned int RingRPos = 0;
+static unsigned int RingWPos = 0;
+
typedef struct {
int type;
char *name;
int rows;
int cols;
- int xres;
+ int xres; /* pixel width of one char */
+ int yres; /* pixel height of one char */
int gpos;
+ int gpis;
+ int chars; /* number of user definable chars */
int protocol;
} MODEL;
@@ -72,9 +83,9 @@ typedef struct {
/* Fixme: number of gpo's should be verified */
static MODEL Models[] = {
- {0x01, "CW1602", 2, 16, 5, 0, 1},
- {0x02, "CW12232", 4, 20, 6, 0, 2},
- {0xff, "Unknown", -1, -1, -1, -1, -1}
+ {0x01, "CW1602", 2, 16, 5, 7, 2, 2, 8, 1},
+ {0x02, "CW12232", 4, 20, 6, 8, 2, 2, 16, 2},
+ {0xff, "Unknown", -1, -1, -1, -1, -1, -1, -1, -1}
};
@@ -82,10 +93,55 @@ static MODEL Models[] = {
/*** hardware dependant functions ***/
/****************************************/
+static void drv_CW_process_input(void)
+{
+ while (RingRPos != RingWPos) {
+ drv_generic_keypad_press(RingBuffer[RingRPos++]);
+ if (RingRPos >= sizeof(RingBuffer))
+ RingRPos = 0;
+ }
+}
+
+
+static int drv_CW_poll(void)
+{
+ while (1) {
+ char buffer[32];
+ int num, n;
+
+ num = drv_generic_serial_poll(buffer, sizeof(buffer));
+ if (num <= 0)
+ break; /* no more input */
+
+ /* put result into RingBuffer */
+ for (n = 0; n < num; n++) {
+ RingBuffer[RingWPos++] = (unsigned char) buffer[n];
+ if (RingWPos >= sizeof(RingBuffer))
+ RingWPos = 0;
+ }
+ }
+
+ if (RingRPos != RingWPos)
+ return 1;
+ else
+ return 0;
+}
+
+
+static void drv_CW_timer(void __attribute__ ((unused)) * notused)
+{
+ while (drv_CW_poll()) {
+ drv_CW_process_input();
+ }
+}
+
+
static void drv_CW_send(const char *string, const int len)
{
drv_generic_serial_write(string, len);
usleep(20);
+ if (drv_CW_poll())
+ drv_CW_process_input();
}
@@ -145,6 +201,16 @@ static int drv_CW_GPO(const int num, const int val)
}
+static int drv_CW_GPI(const int num)
+{
+ if (num < 0 || num > GPIS) {
+ return 0;
+ }
+ error("%s: GPI's not yet implemented!", Name);
+ return num;
+}
+
+
static void drv_CW_clear(void)
{
#if 1
@@ -194,10 +260,43 @@ static int drv_CW_brightness(int brightness)
}
+static int drv_CW_keypad(const int num)
+{
+ int val = WIDGET_KEY_PRESSED;
+
+ switch (num) {
+ case 65:
+ val += WIDGET_KEY_UP;
+ break;
+ case 66:
+ val += WIDGET_KEY_DOWN;
+ break;
+ case 67:
+ val += WIDGET_KEY_LEFT;
+ break;
+ case 68:
+ val += WIDGET_KEY_RIGHT;
+ break;
+ case 69:
+ val += WIDGET_KEY_CONFIRM;
+ break;
+ case 70:
+ val += WIDGET_KEY_CANCEL;
+ break;
+ default:
+ error("%s: unknown keypad value %d", Name, num);
+ }
+
+ debug("%s: key %c (0x%x) pressed", Name, num, num);
+ return val;
+}
+
+
static int drv_CW_start(const char *section)
{
int i;
char *model;
+ char buffer[16];
model = cfg_get(section, "Model", NULL);
if (model != NULL && *model != '\0') {
@@ -220,28 +319,37 @@ static int drv_CW_start(const char *section)
if (drv_generic_serial_open(section, Name, 0) < 0)
return -1;
- /* this does not work as I'd expect it... */
-#if 0
/* read firmware version */
- generic_serial_read(buffer, sizeof(buffer));
- usleep(100000);
- generic_serial_write("\3761", 2);
- usleep(100000);
- generic_serial_write("\375", 1);
+ drv_generic_serial_write("\3761\375", 3);
usleep(100000);
- if (generic_serial_read(buffer, 2) != 2) {
+ if (drv_generic_serial_read(buffer, 2) != 2) {
info("unable to read firmware version!");
+ } else {
+ info("Cwlinux Firmware V%d.%d", (int) buffer[0], (int) buffer[1]);
+ }
+
+ /* read model mumber */
+ drv_generic_serial_write("\3760\375", 3);
+ usleep(100000);
+ if (drv_generic_serial_read(buffer, 2) != 2) {
+ info("unable to read model number!");
+ } else {
+ info("Cwlinux model CW%d%d", (int) buffer[0], (int) buffer[1]);
}
- info("Cwlinux Firmware %d.%d", (int) buffer[0], (int) buffer[1]);
-#endif
/* initialize global variables */
DROWS = Models[Model].rows;
DCOLS = Models[Model].cols;
XRES = Models[Model].xres;
+ YRES = Models[Model].yres;
GPOS = Models[Model].gpos;
+ GPIS = Models[Model].gpis;
+ CHARS = Models[Model].chars;
Protocol = Models[Model].protocol;
+ /* regularly process display input */
+ timer_add(drv_CW_timer, NULL, 250, 0);
+
drv_CW_clear();
drv_CW_send("\376D\375", 3); /* auto line wrap off */
@@ -291,6 +399,7 @@ static void plugin_brightness(RESULT * result, const int argc, RESULT * argv[])
/* using drv_generic_text_icon_draw(W) */
/* using drv_generic_text_bar_draw(W) */
/* using drv_generic_gpio_draw(W) */
+/* using drv_generic_keypad_draw(W) */
/****************************************/
@@ -319,9 +428,6 @@ int drv_CW_init(const char *section, const int quiet)
info("%s: %s", Name, "$Rev$");
/* display preferences */
- XRES = 6; /* pixel width of one char */
- YRES = 8; /* pixel height of one char */
- CHARS = 16; /* number of user-defineable characters */
CHAR0 = 1; /* ASCII of first user-defineable char */
GOTO_COST = 3; /* number of bytes a goto command requires */
INVALIDATE = 1; /* re-defined chars must be re-sent to the display */
@@ -333,6 +439,8 @@ int drv_CW_init(const char *section, const int quiet)
/* real worker functions */
drv_generic_text_real_write = drv_CW_write;
drv_generic_gpio_real_set = drv_CW_GPO;
+ drv_generic_gpio_real_get = drv_CW_GPI;
+ drv_generic_keypad_real_press = drv_CW_keypad;
switch (Protocol) {
case 1:
@@ -371,6 +479,10 @@ int drv_CW_init(const char *section, const int quiet)
if ((ret = drv_generic_gpio_init(section, Name)) != 0)
return ret;
+ /* initialize generic key pad driver */
+ if ((ret = drv_generic_keypad_init(section, Name)) != 0)
+ return ret;
+
/* register text widget */
wc = Widget_Text;
wc.draw = drv_generic_text_draw;
@@ -400,6 +512,7 @@ int drv_CW_quit(const int quiet)
info("%s: shutting down.", Name);
drv_generic_text_quit();
drv_generic_gpio_quit();
+ drv_generic_keypad_quit();
/* clear display */
drv_CW_clear();