X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=board%2Flwmon5%2Fkbd.c;h=b66f681eeb748d0393152a89df68fb0989e31762;hb=dcfe863838becd4cf4dba4d89aef2332150fe90f;hp=0a8787a91ced22d03b01c916d47974a0390206af;hpb=f82642e33899766892499b163e60560fbbf87773;p=u-boot

diff --git a/board/lwmon5/kbd.c b/board/lwmon5/kbd.c
index 0a8787a91c..b66f681eeb 100644
--- a/board/lwmon5/kbd.c
+++ b/board/lwmon5/kbd.c
@@ -45,6 +45,10 @@ static int compare_magic (uchar *kbd_data, uchar *str);
 /*--------------------- Local macros and constants --------------------*/
 #define	_NOT_USED_	0xFFFFFFFF
 
+/*------------------------- dspic io expander -----------------------*/
+#define DSPIC_PON_STATUS_REG	0x80A
+#define DSPIC_PON_INV_STATUS_REG 0x80C
+#define DSPIC_PON_KEY_REG	0x810
 /*------------------------- Keyboard controller -----------------------*/
 /* command codes */
 #define	KEYBD_CMD_READ_KEYS	0x01
@@ -75,6 +79,7 @@ static int compare_magic (uchar *kbd_data, uchar *str);
 /* maximum number of "magic" key codes that can be assigned */
 
 static uchar kbd_addr = CONFIG_SYS_I2C_KEYBD_ADDR;
+static uchar dspic_addr = CONFIG_SYS_I2C_DSPIC_IO_ADDR;
 
 static uchar *key_match (uchar *);
 
@@ -108,7 +113,7 @@ static void kbd_init (void)
 
 	i2c_init (CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
 
-	gd->kbd_status = 0;
+	gd->arch.kbd_status = 0;
 
 	/* Forced by PIC. Delays <= 175us loose */
 	udelay(1000);
@@ -122,7 +127,7 @@ static void kbd_init (void)
 	/* clear "irrelevant" bits. Recommended by Martin Rajek, LWN */
 	errcd &= ~(KEYBD_STATUS_H_RESET|KEYBD_STATUS_BROWNOUT);
 	if (errcd) {
-		gd->kbd_status |= errcd << 8;
+		gd->arch.kbd_status |= errcd << 8;
 	}
 	/* Reset error code and verify */
 	val = KEYBD_CMD_RESET_ERRORS;
@@ -135,7 +140,7 @@ static void kbd_init (void)
 
 	val &= KEYBD_STATUS_MASK;	/* clear unused bits */
 	if (val) {			/* permanent error, report it */
-		gd->kbd_status |= val;
+		gd->arch.kbd_status |= val;
 		return;
 	}
 
@@ -167,6 +172,23 @@ static void kbd_init (void)
 	}
 }
 
+
+/* Read a register from the dsPIC. */
+int _dspic_read(ushort reg, ushort *data)
+{
+	uchar buf[sizeof(*data)];
+	int rval;
+
+	if (i2c_read(dspic_addr, reg, 2, buf, 2))
+		return -1;
+
+	rval = i2c_read(dspic_addr, reg, sizeof(reg), buf, sizeof(*data));
+	*data = (buf[0] << 8) | buf[1];
+
+	return rval;
+}
+
+
 /***********************************************************************
 F* Function:     int misc_init_r (void) P*A*Z*
  *
@@ -194,9 +216,10 @@ int misc_init_r_kbd (void)
 {
 	uchar kbd_data[KEYBD_DATALEN];
 	char keybd_env[2 * KEYBD_DATALEN + 1];
-	uchar kbd_init_status = gd->kbd_status >> 8;
-	uchar kbd_status = gd->kbd_status;
+	uchar kbd_init_status = gd->arch.kbd_status >> 8;
+	uchar kbd_status = gd->arch.kbd_status;
 	uchar val;
+	ushort data, inv_data;
 	char *str;
 	int i;
 
@@ -231,9 +254,31 @@ int misc_init_r_kbd (void)
 	i2c_write (kbd_addr, 0, 0, &val, 1);
 	i2c_read (kbd_addr, 0, 0, kbd_data, KEYBD_DATALEN);
 
+	/* read out start key from bse01 received via can */
+	_dspic_read(DSPIC_PON_STATUS_REG, &data);
+	/* check highbyte from status register */
+	if (data > 0xFF) {
+		_dspic_read(DSPIC_PON_INV_STATUS_REG, &inv_data);
+
+		/* check inverse data */
+		if ((data+inv_data) == 0xFFFF) {
+			/* don't overwrite local key */
+			if (kbd_data[1] == 0) {
+				/* read key value */
+				_dspic_read(DSPIC_PON_KEY_REG, &data);
+				str = (char *)&data;
+				/* swap bytes */
+				kbd_data[1] = str[1];
+				kbd_data[2] = str[0];
+				printf("CAN received startkey: 0x%X\n", data);
+			}
+		}
+	}
+
 	for (i = 0; i < KEYBD_DATALEN; ++i) {
 		sprintf (keybd_env + i + i, "%02X", kbd_data[i]);
 	}
+
 	setenv ("keybd", keybd_env);
 
 	str = strdup ((char *)key_match (kbd_data));	/* decode keys */
@@ -380,7 +425,7 @@ static uchar *key_match (uchar *kbd_data)
 
 /***********************************************************************
 F* Function:     int do_kbd (cmd_tbl_t *cmdtp, int flag,
-F*                           int argc, char *argv[]) P*A*Z*
+F*                           int argc, char * const argv[]) P*A*Z*
  *
 P* Parameters:   cmd_tbl_t *cmdtp
 P*                - Pointer to our command table entry
@@ -389,7 +434,7 @@ P*                - If the CMD_FLAG_REPEAT bit is set, then this call is
 P*                  a repetition
 P*               int argc
 P*                - Argument count
-P*               char *argv[]
+P*               char * const argv[]
 P*                - Array of the actual arguments
 P*
 P* Returnvalue:  int
@@ -404,7 +449,7 @@ D* Design:       wd@denx.de
 C* Coding:       wd@denx.de
 V* Verification: dzu@denx.de
  ***********************************************************************/
-int do_kbd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_kbd (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	uchar kbd_data[KEYBD_DATALEN];
 	char keybd_env[2 * KEYBD_DATALEN + 1];
@@ -432,8 +477,8 @@ int do_kbd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 
 U_BOOT_CMD(
 	kbd,	1,	1,	do_kbd,
-	"kbd     - read keyboard status\n",
-	NULL
+	"read keyboard status",
+	""
 );
 
 /*----------------------------- Utilities -----------------------------*/