aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux/mediatek/files-5.10/drivers/net/phy/rtk/rtl8367c/rtl8367c_asicdrv_i2c.c
diff options
context:
space:
mode:
Diffstat (limited to 'target/linux/mediatek/files-5.10/drivers/net/phy/rtk/rtl8367c/rtl8367c_asicdrv_i2c.c')
-rw-r--r--target/linux/mediatek/files-5.10/drivers/net/phy/rtk/rtl8367c/rtl8367c_asicdrv_i2c.c474
1 files changed, 474 insertions, 0 deletions
diff --git a/target/linux/mediatek/files-5.10/drivers/net/phy/rtk/rtl8367c/rtl8367c_asicdrv_i2c.c b/target/linux/mediatek/files-5.10/drivers/net/phy/rtk/rtl8367c/rtl8367c_asicdrv_i2c.c
new file mode 100644
index 0000000000..69f20a0188
--- /dev/null
+++ b/target/linux/mediatek/files-5.10/drivers/net/phy/rtk/rtl8367c/rtl8367c_asicdrv_i2c.c
@@ -0,0 +1,474 @@
+/*
+ * Copyright (C) 2013 Realtek Semiconductor Corp.
+ * All Rights Reserved.
+ *
+ * Unless you and Realtek execute a separate written software license
+ * agreement governing use of this software, this software is licensed
+ * to you under the terms of the GNU General Public License version 2,
+ * available at https://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
+ *
+ * $Revision: 38651 $
+ * $Date: 2016-02-27 14:32:56 +0800 (周三, 17 ε››ζœˆ 2016) $
+ *
+ * Purpose : RTL8367C switch high-level API for RTL8367C
+ * Feature : I2C related functions
+ *
+ */
+
+
+#include <rtl8367c_asicdrv_i2c.h>
+#include <rtk_error.h>
+#include <rtk_types.h>
+
+
+
+/* Function Name:
+ * rtl8367c_setAsicI2C_checkBusIdle
+ * Description:
+ * Check i2c bus status idle or not
+ * Input:
+ * None
+ * Output:
+ * None
+ * Return:
+ * RT_ERR_OK - Success
+ * RT_ERR_BUSYWAIT_TIMEOUT - i2c bus is busy
+ * Note:
+ * This API can check i2c bus status.
+ */
+ret_t rtl8367c_setAsicI2C_checkBusIdle(void)
+{
+ rtk_uint32 regData;
+ ret_t retVal;
+
+ if ((retVal = rtl8367c_getAsicRegBit(RTL8367C_REG_M_I2C_CTL_STA_REG, RTL8367C_M_I2C_BUS_IDLE_OFFSET, &regData)) != RT_ERR_OK)
+ return retVal;
+
+ if(regData == 0x0001)
+ return RT_ERR_OK; /*i2c is idle*/
+ else
+ return RT_ERR_BUSYWAIT_TIMEOUT; /*i2c is busy*/
+}
+
+
+/* Function Name:
+ * rtl8367c_setAsicI2CStartCmd
+ * Description:
+ * Set I2C start command
+ * Input:
+ * None
+ * Output:
+ * None
+ * Return:
+ * RT_ERR_OK - Success
+ * Note:
+ * This API can set i2c start command ,start a i2c traffic .
+ */
+ret_t rtl8367c_setAsicI2CStartCmd(void)
+{
+ rtk_uint32 regData;
+ ret_t retVal;
+
+ /* Bits [4-1] = 0b0000, Start Command; Bit [0] = 1, Trigger the Command */
+ if ((retVal = rtl8367c_getAsicReg(RTL8367C_REG_M_I2C_CTL_STA_REG, &regData)) != RT_ERR_OK)
+ return retVal;
+ regData &= 0xFFE0;
+ regData |= 0x0001;
+
+ if ((retVal = rtl8367c_setAsicReg(RTL8367C_REG_M_I2C_CTL_STA_REG, regData)) != RT_ERR_OK)
+ return retVal;
+
+ /* wait for command finished */
+ do{
+ if ((retVal = rtl8367c_getAsicRegBit(RTL8367C_REG_M_I2C_CTL_STA_REG, RTL8367C_I2C_CMD_EXEC_OFFSET, &regData)) != RT_ERR_OK)
+ return retVal;
+ }while( regData != 0x0);
+
+ return RT_ERR_OK ;
+}
+
+/* Function Name:
+ * rtl8367c_setAsicI2CStopCmd
+ * Description:
+ * Set I2C stop command
+ * Input:
+ * None
+ * Output:
+ * None
+ * Return:
+ * RT_ERR_OK - Success
+ * Note:
+ * This API can set i2c stop command ,stop a i2c traffic.
+ */
+ret_t rtl8367c_setAsicI2CStopCmd(void)
+{
+
+ rtk_uint32 regData;
+ ret_t retVal;
+
+ /* Bits [4-1] = 0b0001, Stop Command; Bit [0] = 1, Trigger the Command */
+ if ((retVal = rtl8367c_getAsicReg(RTL8367C_REG_M_I2C_CTL_STA_REG, &regData)) != RT_ERR_OK)
+ return retVal;
+ regData &= 0xFFE0;
+ regData |= 0x0003;
+
+ if ((retVal = rtl8367c_setAsicReg(RTL8367C_REG_M_I2C_CTL_STA_REG, regData)) != RT_ERR_OK)
+ return retVal;
+
+
+ /* wait for command finished */
+ do{
+ if ((retVal = rtl8367c_getAsicRegBit(RTL8367C_REG_M_I2C_CTL_STA_REG, RTL8367C_I2C_CMD_EXEC_OFFSET, &regData)) != RT_ERR_OK)
+ return retVal;
+ }while( regData != 0x0);
+
+ return RT_ERR_OK ;
+}
+
+/* Function Name:
+ * rtl8367c_setAsicI2CTxOneCharCmd
+ * Description:
+ * Set I2C Tx a char command, with a 8-bit data
+ * Input:
+ * oneChar - 8-bit data
+ * Output:
+ * None
+ * Return:
+ * RT_ERR_OK - Success
+ * Note:
+ * This API can set i2c Tx command and with a 8-bit data.
+ */
+ret_t rtl8367c_setAsicI2CTxOneCharCmd(rtk_uint8 oneChar)
+{
+ rtk_uint32 regData;
+ ret_t retVal;
+
+ /* Bits [4-1] = 0b0010, tx one char; Bit [0] = 1, Trigger the Command */
+ if ((retVal = rtl8367c_getAsicReg(RTL8367C_REG_M_I2C_CTL_STA_REG, &regData)) != RT_ERR_OK)
+ return retVal;
+
+ regData &= 0xFFE0;
+ regData |= 0x0005;
+ regData &= 0x00FF;
+ regData |= (rtk_uint16) (oneChar << 8);
+
+ if ((retVal = rtl8367c_setAsicReg(RTL8367C_REG_M_I2C_CTL_STA_REG, regData)) != RT_ERR_OK)
+ return retVal;
+
+
+ /* wait for command finished */
+ do{
+ if ((retVal = rtl8367c_getAsicRegBit(RTL8367C_REG_M_I2C_CTL_STA_REG, RTL8367C_I2C_CMD_EXEC_OFFSET, &regData)) != RT_ERR_OK)
+ return retVal;
+ }while( regData != 0x0);
+
+ return RT_ERR_OK ;
+}
+
+
+/* Function Name:
+ * rtl8367c_setAsicI2CcheckRxAck
+ * Description:
+ * Check if rx an Ack
+ * Input:
+ * None
+ * Output:
+ * None
+ * Return:
+ * RT_ERR_OK - Success
+ * Note:
+ * This API can check if rx an ack from i2c slave.
+ */
+ret_t rtl8367c_setAsicI2CcheckRxAck(void)
+{
+ rtk_uint32 regData;
+ ret_t retVal;
+ rtk_uint32 count = 0;
+
+ do{
+ count++;
+ if ((retVal = rtl8367c_getAsicRegBit(RTL8367C_REG_M_I2C_CTL_STA_REG, RTL8367C_SLV_ACK_FLAG_OFFSET, &regData)) != RT_ERR_OK)
+ return retVal;
+ }while( (regData != 0x1) && (count < TIMEROUT_FOR_MICROSEMI) );
+
+ if(regData != 0x1)
+ return RT_ERR_FAILED;
+ else
+ return RT_ERR_OK;
+}
+
+
+/* Function Name:
+ * rtl8367c_setAsicI2CRxOneCharCmd
+ * Description:
+ * Set I2C Rx command and get 8-bit data
+ * Input:
+ * None
+ * Output:
+ * pValue - 8bit-data
+ * Return:
+ * RT_ERR_OK - Success
+ * Note:
+ * This API can set I2C Rx command and get 8-bit data.
+ */
+ret_t rtl8367c_setAsicI2CRxOneCharCmd(rtk_uint8 *pValue)
+{
+ rtk_uint32 regData;
+ ret_t retVal;
+
+ /* Bits [4-1] = 0b0011, Rx one char; Bit [0] = 1, Trigger the Command */
+ if ((retVal = rtl8367c_getAsicReg(RTL8367C_REG_M_I2C_CTL_STA_REG, &regData)) != RT_ERR_OK)
+ return retVal;
+ regData &= 0xFFE0;
+ regData |= 0x0007;
+ if ((retVal = rtl8367c_setAsicReg(RTL8367C_REG_M_I2C_CTL_STA_REG, regData)) != RT_ERR_OK)
+ return retVal;
+
+ /* wait for command finished */
+ do{
+ if ((retVal = rtl8367c_getAsicReg(RTL8367C_REG_M_I2C_CTL_STA_REG, &regData)) != RT_ERR_OK)
+ return retVal;
+ }while( (regData & 0x1) != 0x0);
+
+ *pValue = (rtk_uint8)(regData >> 8);
+ return RT_ERR_OK ;
+
+}
+
+/* Function Name:
+ * rtl8367c_setAsicI2CTxAckCmd
+ * Description:
+ * Set I2C Tx ACK command
+ * Input:
+ * None
+ * Output:
+ * None
+ * Return:
+ * RT_ERR_OK - Success
+ * Note:
+ * This API can set I2C Tx ack command.
+ */
+ret_t rtl8367c_setAsicI2CTxAckCmd(void)
+{
+ rtk_uint32 regData;
+ ret_t retVal;
+
+ /* Bits [4-1] = 0b0100, tx ACK Command; Bit [0] = 1, Trigger the Command */
+ if ((retVal = rtl8367c_getAsicReg(RTL8367C_REG_M_I2C_CTL_STA_REG, &regData)) != RT_ERR_OK)
+ return retVal;
+ regData &= 0xFFE0;
+ regData |= 0x0009;
+ if ((retVal = rtl8367c_setAsicReg(RTL8367C_REG_M_I2C_CTL_STA_REG, regData)) != RT_ERR_OK)
+ return retVal;
+
+ /* wait for command finished */
+ do{
+ if ((retVal = rtl8367c_getAsicRegBit(RTL8367C_REG_M_I2C_CTL_STA_REG, RTL8367C_I2C_CMD_EXEC_OFFSET, &regData)) != RT_ERR_OK)
+ return retVal;
+ }while( regData != 0x0);
+
+ return RT_ERR_OK ;
+
+}
+
+
+/* Function Name:
+ * rtl8367c_setAsicI2CTxNoAckCmd
+ * Description:
+ * Set I2C master Tx noACK command
+ * Input:
+ * None
+ * Output:
+ * None
+ * Return:
+ * RT_ERR_OK - Success
+ * Note:
+ * This API can set I2C master Tx noACK command.
+ */
+ret_t rtl8367c_setAsicI2CTxNoAckCmd(void)
+{
+ rtk_uint32 regData;
+ ret_t retVal;
+
+ /* Bits [4-1] = 0b0101, tx noACK Command; Bit [0] = 1, Trigger the Command */
+ if ((retVal = rtl8367c_getAsicReg(RTL8367C_REG_M_I2C_CTL_STA_REG, &regData)) != RT_ERR_OK)
+ return retVal;
+ regData &= 0xFFE0;
+ regData |= 0x000b;
+ if ((retVal = rtl8367c_setAsicReg(RTL8367C_REG_M_I2C_CTL_STA_REG, regData)) != RT_ERR_OK)
+ return retVal;
+
+ /* wait for command finished */
+ do{
+ if ((retVal = rtl8367c_getAsicRegBit(RTL8367C_REG_M_I2C_CTL_STA_REG, RTL8367C_I2C_CMD_EXEC_OFFSET, &regData)) != RT_ERR_OK)
+ return retVal;
+ }while( regData != 0x0);
+
+ return RT_ERR_OK ;
+
+}
+
+/* Function Name:
+ * rtl8367c_setAsicI2CSoftRSTseqCmd
+ * Description:
+ * set I2C master tx soft reset command
+ * Input:
+ * None
+ * Output:
+ * None
+ * Return:
+ * RT_ERR_OK - Success
+ * Note:
+ * This API can set I2C master tx soft reset command.
+ */
+ret_t rtl8367c_setAsicI2CSoftRSTseqCmd(void)
+{
+
+ rtk_uint32 regData;
+ ret_t retVal;
+
+ /*Bits [4-1] = 0b0110, tx soft reset Command; Bit [0] = 1, Trigger the Command */
+ if ((retVal = rtl8367c_getAsicReg(RTL8367C_REG_M_I2C_CTL_STA_REG, &regData)) != RT_ERR_OK)
+ return retVal;
+ regData &= 0xFFE0;
+ regData |= 0x000d;
+
+ if ((retVal = rtl8367c_setAsicReg(RTL8367C_REG_M_I2C_CTL_STA_REG, regData)) != RT_ERR_OK)
+ return retVal;
+
+
+ /* wait for command finished */
+ do{
+ if ((retVal = rtl8367c_getAsicRegBit(RTL8367C_REG_M_I2C_CTL_STA_REG, RTL8367C_I2C_CMD_EXEC_OFFSET, &regData)) != RT_ERR_OK)
+ return retVal;
+ }while( regData != 0x0);
+
+ return RT_ERR_OK ;
+}
+
+
+/* Function Name:
+ * rtl8367c_setAsicI2CGpioPinGroup
+ * Description:
+ * set I2C function used gpio pins
+ * Input:
+ * pinGroup_ID - gpio pins group
+ * Output:
+ * None
+ * Return:
+ * RT_ERR_OK - Success
+ * RT_ERR_INPUT _ Invalid input parameter
+ * Note:
+ * This API can set I2C function used gpio pins.
+ * There are three group gpio pins
+ */
+ret_t rtl8367c_setAsicI2CGpioPinGroup(rtk_uint32 pinGroup_ID)
+{
+ rtk_uint32 regData;
+ ret_t retVal;
+
+ if ((retVal = rtl8367c_getAsicReg(RTL8367C_REG_M_I2C_SYS_CTL, &regData)) != RT_ERR_OK)
+ return retVal;
+ if( pinGroup_ID==0 )
+ {
+ regData &= 0x0FFF;
+ regData |= 0x5000;
+
+ if ((retVal = rtl8367c_setAsicReg(RTL8367C_REG_M_I2C_SYS_CTL, regData)) != RT_ERR_OK)
+ return retVal;
+ }
+
+ else if( pinGroup_ID==1 )
+ {
+ regData &= 0x0FFF;
+ regData |= 0xA000;
+
+ if ((retVal = rtl8367c_setAsicReg(RTL8367C_REG_M_I2C_SYS_CTL, regData)) != RT_ERR_OK)
+ return retVal;
+ }
+
+ else if( pinGroup_ID==2 )
+ {
+ regData &= 0x0FFF;
+ regData |= 0xF000;
+
+ if ((retVal = rtl8367c_setAsicReg(RTL8367C_REG_M_I2C_SYS_CTL, regData)) != RT_ERR_OK)
+ return retVal;
+ }
+ else
+ return RT_ERR_INPUT;
+
+ return RT_ERR_OK ;
+
+}
+
+/* Function Name:
+ * rtl8367c_setAsicI2CGpioPinGroup
+ * Description:
+ * set I2C function used gpio pins
+ * Input:
+ * pinGroup_ID - gpio pins group
+ * Output:
+ * None
+ * Return:
+ * RT_ERR_OK - Success
+ * RT_ERR_INPUT _ Invalid input parameter
+ * Note:
+ * This API can set I2C function used gpio pins.
+ * There are three group gpio pins
+ */
+ret_t rtl8367c_getAsicI2CGpioPinGroup(rtk_uint32 * pPinGroup_ID)
+{
+
+ rtk_uint32 regData;
+ ret_t retVal;
+ if( (retVal = rtl8367c_getAsicReg(RTL8367C_REG_M_I2C_SYS_CTL, &regData)) != RT_ERR_OK)
+ return retVal;
+ regData &= 0xF000 ;
+ regData = (regData >> 12);
+
+ if( regData == 0x5 )
+ *pPinGroup_ID = 0;
+ else if(regData == 0xA)
+ *pPinGroup_ID = 1;
+ else if(regData == 0xF)
+ *pPinGroup_ID = 2;
+ else
+ return RT_ERR_FAILED;
+ return RT_ERR_OK ;
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-01 12:39:51 +0000