From f10b00be2b0a5efbb8024e8c90b4c0db31a95b7a Mon Sep 17 00:00:00 2001
From: Oliver Schinagl <oliver@schinagl.nl>
Date: Fri, 18 Mar 2011 21:54:51 +0000
Subject: This commit goes with the gpio commit earlier (-r 10:12)

---
 uClinux-2.4.20-uc1/include/gpio/gpio_i2c.h       | 47 ++++++++++++++++++++++++
 uClinux-2.4.20-uc1/include/gpio/gpio_interface.h | 40 ++++++++++++++++++++
 2 files changed, 87 insertions(+)
 create mode 100644 uClinux-2.4.20-uc1/include/gpio/gpio_i2c.h
 create mode 100644 uClinux-2.4.20-uc1/include/gpio/gpio_interface.h

diff --git a/uClinux-2.4.20-uc1/include/gpio/gpio_i2c.h b/uClinux-2.4.20-uc1/include/gpio/gpio_i2c.h
new file mode 100644
index 0000000..af8e031
--- /dev/null
+++ b/uClinux-2.4.20-uc1/include/gpio/gpio_i2c.h
@@ -0,0 +1,47 @@
+#ifndef __GPIO_I2C_H_
+#define	__GPIO_I2C_H_
+
+//I2C define
+#define GPIO_I2C_SDA				0
+#define GPIO_I2C_SCLK				1
+
+/*schen add 2004-7-22 15:55 for smartcard module*/
+#define GPIO_SC_IO1				2
+#define GPIO_SC_IO2				3
+#define GPIO_SC_CLK				4
+
+#define GPIO_I2C_RD				0x01
+#define GPIO_I2C_WR				0x02
+
+/*schen add 2004-7-22 16:17 for smartcard module*/
+#define GPIO_I2C_LOW				0
+#define GPIO_I2C_HIGH				1
+
+/*schen add 2004-7-22 15:55 for smartcard module*/
+#define I2C_ACK    0  
+#define I2C_NAK    1
+
+#define GPIO_I2C_DELAY			200	//400khz (fast-mode) / 800 //100khz
+#define GPIO_I2C_MAX_BYTES		8192 //max bytes to be transfer one time
+
+void	GPIO_Enable_I2C_Channel(void);		/* choose gpio0 and gpio1 */
+
+
+int		GPIO_I2C_Start(void);					/* start I2C communication */
+void	GPIO_I2C_Stop(void);					/* stop I2C communication */
+int		GPIO_I2C_Send_Byte(unsigned char c);	/* write a byte to slave * device */
+int		GPIO_I2C_Read_Ack(void);				/* read acknowledge from * slave device */
+int		GPIO_I2C_Read_Byte(void);				/* read a byte from slave * device */
+int		GPIO_I2C_Read_Last_Byte(void);			/* read last byte from * slave device */
+int		GPIO_I2C_Send_Ack(void);				/* master send acknowledge * when reading */
+int		GPIO_I2C_Send_NoAck(void);				/* master send no * acknowledge before stop */
+int 	output_data(unsigned char dat);
+unsigned char input_data(unsigned char ack);
+
+#if 1
+#define I2C_DEBUG(x)
+#else
+#define I2C_DEBUG(x)	 x
+#endif
+
+#endif
diff --git a/uClinux-2.4.20-uc1/include/gpio/gpio_interface.h b/uClinux-2.4.20-uc1/include/gpio/gpio_interface.h
new file mode 100644
index 0000000..e371810
--- /dev/null
+++ b/uClinux-2.4.20-uc1/include/gpio/gpio_interface.h
@@ -0,0 +1,40 @@
+#define GPIO_OUT					1
+#define GPIO_IN					0
+
+#define GPIO_TIMEOUT				(-2)
+#define GPIO_ERROR				(-1)
+#define GPIO_OK					(0)
+
+#define GPIO_LOW					0
+#define GPIO_HIGH					1
+
+#define GPIO_CHANNEL_0_3		0xFFFFFFFC
+#define GPIO_CHANNEL_9_4		0xFFFFFFF3
+#define GPIO_CHANNEL_11_10		0xFFFFFFCF
+#define GPIO_CHANNEL_12			0xFFFFFF3F
+#define GPIO_CHANNEL_13			0xFFFFFCFF
+#define GPIO_CHANNEL_14			0xFFFFF3FF
+#define GPIO_CHANNEL_16_15		0xFFFFCFFF
+#define GPIO_CHANNEL_17			0xFFFFCFFF
+#define GPIO_CHANNEL_18			0xFFFCFFFF
+#define GPIO_CHANNEL_19			0xFFF3FFFF
+#define GPIO_CHANNEL_20			0xFFCFFFFF
+
+
+extern void GPIO_Enable_Channel(int channel);//normal I/O mode
+
+extern int Set_Dir(int channel, int dir);
+extern void GPIO_SET(int channel_num, int sig_status);
+extern int GPIO_GET(int channel_num);//0-20
+
+extern int GPIO_EnableChannel0_3(int mode);
+extern int GPIO_EnableChannel4_9(int mode);
+extern int GPIO_EnableChannel10_11(int mode);
+extern int GPIO_EnableChannel12(int mode);
+extern int GPIO_EnableChannel13(int mode);
+extern int GPIO_EnableChannel14(int mode);
+extern int GPIO_EnableChannel15_16(int mode);
+extern int GPIO_EnableChannel17(int mode);
+extern int GPIO_EnableChannel18(int mode);
+extern int GPIO_EnableChannel19(int mode);
+extern int GPIO_EnableChannel20(int mode);
-- 
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