1 files changed, 117 insertions, 0 deletions
diff --git a/board/ti/logic/logic-at88.c b/board/ti/logic/logic-at88.c
new file mode 100644
index 00000000000..21299cadc80
--- /dev/null
+++ b/board/ti/logic/logic-at88.c
@@ -0,0 +1,117 @@
+/*
+ * (C) Copyright 2008-2011
+ * Logic Product Development, <www.logicpd.com>
+ * Peter Barada <peter.barada@logicpd.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <command.h>
+#include <asm/arch/cpu.h>
+#include <asm/io.h>
+#include <asm/arch/mux.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/arch/clocks.h>
+#include <asm/arch/mem.h>
+#include <i2c.h>
+#include <asm/mach-types.h>
+#include "product_id.h"
+#include "logic-gpio.h"
+#include "logic-i2c.h"
+#include "logic-at88.h"
+#include "logic-data.h"
+
+int at88_send_packet(uint8_t *data, int len, uint8_t *rxbuf, int rxlen)
+{
+	int timeout = 1000;
+	int retry;
+	int rx_mode;
+	int tick, err, idx;
+
+	if (DEBUG_PRODUCTION_DATA) {
+		char buf[3 * len + 2];
+		int i, offset;
+		for (offset = 0, i=0; i<len; ++i) {
+			if (!i)
+				offset = sprintf(buf, "%02x", data[i]);
+			else
+				offset += sprintf(&buf[offset], " %02x", data[i]);
+		}
+		printf("%s: %s\n", __FUNCTION__, buf);
+	}
+
+	/* Wait for bus */
+	while (gpio_i2c_busy() && timeout--)
+		udelay(100);
+
+	if (!timeout)
+		printf("%s:%d i2c_busy never return zero!\n", __FUNCTION__, __LINE__);
+
+	retry = 0;
+	do {
+		tick = 0;
+		do {
+			gpio_i2c_tx_stop();
+			gpio_i2c_tx_start();
+
+			/* send cmd */
+			err = gpio_i2c_tx_byte(data[0]);
+			tick++;
+		} while (err && tick < 100);
+
+		if (tick > 3)
+			printf("I2C ACK polling tick %d!\n", tick);
+
+		for (idx = 1; idx<len; ++idx) {
+			err = gpio_i2c_tx_byte(data[idx]);
+			if (err) {
+				printf("%s:%d NACK idx %d\n", __FUNCTION__, __LINE__, idx);
+			}
+		}
+	} while (err && (retry++ < 5));
+
+	if (err)
+		return err;
+
+	/* Are we expecting a response? */
+	if (rxbuf) {
+		for (idx = 0; idx < rxlen; ++idx) {
+			if (rxlen == 1)
+				rx_mode = RX_MODE_ONE_BYTE;
+			else if (idx == (rxlen - 1))
+				rx_mode = RX_MODE_LAST_BYTE;
+			else if (idx == (rxlen - 2))
+				rx_mode = RX_MODE_NEXT_TO_LAST_BYTE;
+			else if (idx == 0)
+				rx_mode = RX_MODE_FIRST_BYTE;
+			else
+				rx_mode = RX_MODE_MIDDLE_BYTE;
+
+			err = gpio_i2c_rx_byte(&rxbuf[idx], rx_mode);
+			if (DEBUG_PRODUCTION_DATA) {
+				if (err)
+					printf("%s:%d err idx %d\n", __FUNCTION__, __LINE__, idx);
+			}
+		}
+	}
+
+	gpio_i2c_tx_stop();
+	return err;
+}
+
+
+