From: 黄涛 Date: Mon, 16 Aug 2010 07:34:59 +0000 (+0800) Subject: Revert "’增加了扩展IOtca6424的驱动，目前中断方式还在测试，尚不可用，暂时屏蔽了FPGA的GPIO接口‘" X-Git-Tag: firefly_0821_release~11266 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=061d2a7e8db37e69624822fc904bc224b6bf14e5;p=firefly-linux-kernel-4.4.55.git Revert "’增加了扩展IOtca6424的驱动，目前中断方式还在测试，尚不可用，暂时屏蔽了FPGA的GPIO接口‘" This reverts commit 03fe5e9f063a6ffc3cb49b79b184df53c1d25424. --- diff --git a/arch/arm/mach-rk2818/board-infosdk.c b/arch/arm/mach-rk2818/board-infosdk.c index 7c2d32a4fea8..2b84a9b1ea7f 100755 --- a/arch/arm/mach-rk2818/board-infosdk.c +++ b/arch/arm/mach-rk2818/board-infosdk.c @@ -254,72 +254,6 @@ struct pca9554_platform_data rk2818_pca9554_data={ }; #endif -#if defined (CONFIG_IOEXTEND_TCA6424) -struct rk2818_gpio_expander_info extgpio_tca6424_settinginfo[] = { - { - .gpio_num = TCA6424_P01, - .pin_type = GPIO_OUT, - .pin_value = GPIO_LOW, - }, - - { - .gpio_num = TCA6424_P02,// tp3 - .pin_type = GPIO_OUT, - .pin_value = GPIO_LOW, - }, - { - .gpio_num = TCA6424_P03, - .pin_type = GPIO_OUT, - .pin_value = GPIO_LOW, - }, - - { - .gpio_num = TCA6424_P04,// tp3 - .pin_type = GPIO_OUT, - .pin_value = GPIO_LOW, - }, - { - .gpio_num = TCA6424_P05, - .pin_type = GPIO_OUT, - .pin_value = GPIO_LOW, - }, - { - .gpio_num = TCA6424_P12, - .pin_type = GPIO_IN, - //.pin_value =GPIO_HIGH, - }, - - { - .gpio_num = TCA6424_P13,// tp3 - .pin_type = GPIO_IN, - //.pin_value =GPIO_HIGH, - }, - { - .gpio_num = TCA6424_P14, - .pin_type = GPIO_IN, - //.pin_value =GPIO_HIGH, - }, - - { - .gpio_num = TCA6424_P15,// tp3 - .pin_type = GPIO_IN, - //.pin_value =GPIO_HIGH, - }, -}; - -struct tca6424_platform_data rk2818_tca6424_data={ - .gpio_base=GPIOS_EXPANDER_BASE, - .gpio_pin_num=CONFIG_EXPANDED_GPIO_NUM, - .gpio_irq_start=NR_AIC_IRQS + 2*NUM_GROUP, - .irq_pin_num=CONFIG_EXPANDED_GPIO_IRQ_NUM, - .tca6424_irq_pin=RK2818_PIN_PA1, - .settinginfo=extgpio_tca6424_settinginfo, - .settinginfolen=ARRAY_SIZE(extgpio_tca6424_settinginfo), - .names="extend_gpio_tca6424", -}; -#endif - - /***************************************************************************************** * I2C devices *author: kfx @@ -423,15 +357,6 @@ static struct i2c_board_info __initdata board_i2c1_devices[] = { .platform_data=&rk2818_pca9554_data.gpio_base, }, #endif -#if defined (CONFIG_IOEXTEND_TCA6424) - { - .type = "extend_gpio_tca6424", - .addr = 0x23, - .flags = 0, - .platform_data=&rk2818_tca6424_data.gpio_base, - }, -#endif - #if defined (CONFIG_PMIC_LP8725) { .type = "lp8725", diff --git a/arch/arm/mach-rk2818/include/mach/board.h b/arch/arm/mach-rk2818/include/mach/board.h old mode 100755 new mode 100644 index 59094772e4b8..398bf579bc30 --- a/arch/arm/mach-rk2818/include/mach/board.h +++ b/arch/arm/mach-rk2818/include/mach/board.h @@ -105,27 +105,6 @@ struct pca9554_platform_data { char **names; }; -struct tca6424_platform_data { - /* the first extern gpio number in all of gpio groups */ - unsigned gpio_base; - unsigned gpio_pin_num; - /* the first gpio irq number in all of irq source */ - - unsigned gpio_irq_start; - unsigned irq_pin_num; //ÖжϵĸöÊý - unsigned tca6424_irq_pin; //À©Õ¹IOµÄÖжϹÒÔÚÄĸögpio - /* initial polarity inversion setting */ - uint16_t invert; - struct rk2818_gpio_expander_info *settinginfo; - int settinginfolen; - void *context; /* param to setup/teardown */ - - int (*setup)(struct i2c_client *client,unsigned gpio, unsigned ngpio,void *context); - int (*teardown)(struct i2c_client *client,unsigned gpio, unsigned ngpio,void *context); - char **names; -}; - - /*lcd*/ struct lcd_td043mgea1_data{ u32 pin_txd; diff --git a/arch/arm/mach-rk2818/include/mach/gpio.h b/arch/arm/mach-rk2818/include/mach/gpio.h index 9b14b2f77323..cb46e3c8fa67 100755 --- a/arch/arm/mach-rk2818/include/mach/gpio.h +++ b/arch/arm/mach-rk2818/include/mach/gpio.h @@ -20,12 +20,12 @@ #include #include -#define PIN_BASE 0//¶¨ÒåRK2818ÄÚ²¿GPIOµÄµÚÒ»¸öPIN¿Ú(¼´GPIO0_A0)ÔÚgpio_descÊý×éµÄµØÖ· +#define PIN_BASE 0//¶¨ÒåRK2818ÄÚ²¿GPIOµÄµÚÒ»¸öPIN¿Ú(¼´GPIO0_A0)ÔÚgpio_descÊý×éµÄµØÖ· #define NUM_GROUP 8// ¶¨ÒåRK2818ÄÚ²¿GPIOÿһ×é×î´óµÄPINÊýÄ¿£¬ÏÖÔÚ¶¨Îª8¸ö£¬¼´GPIOX_Y0~ GPIOX_Y7(ÆäÖÐX=0/1;Y=A/B/C/D) #define MAX_GPIO_BANKS 8//¶¨ÒåRK2818ÄÚ²¿GPIO×ܹ²Óм¸×飬ÏÖÔÚ¶¨Îª8×飬¼´GPIO0_A~ GPIO0_D£¬GPIO1_A~ GPIO1_D¡£ #define GPIOS_EXPANDER_BASE (PIN_BASE+NUM_GROUP*MAX_GPIO_BANKS) //¶¨ÒåGPIOµÄPIN¿Ú×î´óÊýÄ¿¡£(NUM_GROUP*MAX_GPIO_BANKS)±íʾRK2818µÄÄÚ²¿GPIOµÄPIN¿Ú×î´óÊýÄ¿£»CONFIG_ARCH_EXTEND_GPIOS±íʾÀ©Õ¹IOµÄ×î´óÊýÄ¿¡£ -#define ARCH_NR_GPIOS (NUM_GROUP*MAX_GPIO_BANKS)+CONFIG_EXPANDED_GPIO_NUM +#define ARCH_NR_GPIOS (NUM_GROUP*MAX_GPIO_BANKS) + CONFIG_EXPANDED_GPIO_NUM typedef enum eGPIOPinLevel { GPIO_LOW=0, @@ -122,14 +122,14 @@ struct rk2818_gpio_bank { #define RK2818_PIN_PC6 (PIN_BASE + 2*NUM_GROUP + 6) #define RK2818_PIN_PC7 (PIN_BASE + 2*NUM_GROUP + 7) -#define RK2818_PIN_PD0 (PIN_BASE + 3*NUM_GROUP + 0) -#define RK2818_PIN_PD1 (PIN_BASE + 3*NUM_GROUP + 1) -#define RK2818_PIN_PD2 (PIN_BASE + 3*NUM_GROUP + 2) -#define RK2818_PIN_PD3 (PIN_BASE + 3*NUM_GROUP + 3) -#define RK2818_PIN_PD4 (PIN_BASE + 3*NUM_GROUP + 4) -#define RK2818_PIN_PD5 (PIN_BASE + 3*NUM_GROUP + 5) -#define RK2818_PIN_PD6 (PIN_BASE + 3*NUM_GROUP + 6) -#define RK2818_PIN_PD7 (PIN_BASE + 3*NUM_GROUP + 7) +#define RK2818_PIN_PD0 (PIN_BASE + 3*NUM_GROUP + 0) +#define RK2818_PIN_PD1 (PIN_BASE + 3*NUM_GROUP + 1) +#define RK2818_PIN_PD2 (PIN_BASE + 3*NUM_GROUP + 2) +#define RK2818_PIN_PD3 (PIN_BASE + 3*NUM_GROUP + 3) +#define RK2818_PIN_PD4 (PIN_BASE + 3*NUM_GROUP + 4) +#define RK2818_PIN_PD5 (PIN_BASE + 3*NUM_GROUP + 5) +#define RK2818_PIN_PD6 (PIN_BASE + 3*NUM_GROUP + 6) +#define RK2818_PIN_PD7 (PIN_BASE + 3*NUM_GROUP + 7) #define RK2818_PIN_PE0 (PIN_BASE + 4*NUM_GROUP + 0) #define RK2818_PIN_PE1 (PIN_BASE + 4*NUM_GROUP + 1) @@ -168,7 +168,7 @@ struct rk2818_gpio_bank { #define RK2818_PIN_PH6 (PIN_BASE + 7*NUM_GROUP + 6) #define RK2818_PIN_PH7 (PIN_BASE + 7*NUM_GROUP + 7) /***********************define extern gpio pin num******************************/ -#if 0//defined(CONFIG_SPI_GPIO) +#if defined(CONFIG_SPI_GPIO) #define FPGA_PIO0_00 (GPIOS_EXPANDER_BASE + 0*NUM_GROUP + 0) #define FPGA_PIO0_01 (GPIOS_EXPANDER_BASE + 0*NUM_GROUP + 1) #define FPGA_PIO0_02 (GPIOS_EXPANDER_BASE + 0*NUM_GROUP + 2) @@ -279,37 +279,6 @@ struct rk2818_gpio_bank { #endif -#if defined(CONFIG_IOEXTEND_TCA6424) -#define TCA6424_P00 (GPIOS_EXPANDER_BASE + 0*NUM_GROUP + 0) -#define TCA6424_P01 (GPIOS_EXPANDER_BASE + 0*NUM_GROUP + 1) -#define TCA6424_P02 (GPIOS_EXPANDER_BASE + 0*NUM_GROUP + 2) -#define TCA6424_P03 (GPIOS_EXPANDER_BASE + 0*NUM_GROUP + 3) -#define TCA6424_P04 (GPIOS_EXPANDER_BASE + 0*NUM_GROUP + 4) -#define TCA6424_P05 (GPIOS_EXPANDER_BASE + 0*NUM_GROUP + 5) -#define TCA6424_P06 (GPIOS_EXPANDER_BASE + 0*NUM_GROUP + 6) -#define TCA6424_P07 (GPIOS_EXPANDER_BASE + 0*NUM_GROUP + 7) - -#define TCA6424_P10 (GPIOS_EXPANDER_BASE + 1*NUM_GROUP + 0) -#define TCA6424_P11 (GPIOS_EXPANDER_BASE + 1*NUM_GROUP + 1) -#define TCA6424_P12 (GPIOS_EXPANDER_BASE + 1*NUM_GROUP + 2) -#define TCA6424_P13 (GPIOS_EXPANDER_BASE + 1*NUM_GROUP + 3) -#define TCA6424_P14 (GPIOS_EXPANDER_BASE + 1*NUM_GROUP + 4) -#define TCA6424_P15 (GPIOS_EXPANDER_BASE + 1*NUM_GROUP + 5) -#define TCA6424_P16 (GPIOS_EXPANDER_BASE + 1*NUM_GROUP + 6) -#define TCA6424_P17 (GPIOS_EXPANDER_BASE + 1*NUM_GROUP + 7) - -#define TCA6424_P20 (GPIOS_EXPANDER_BASE + 2*NUM_GROUP + 0) -#define TCA6424_P21 (GPIOS_EXPANDER_BASE + 2*NUM_GROUP + 1) -#define TCA6424_P22 (GPIOS_EXPANDER_BASE + 2*NUM_GROUP + 2) -#define TCA6424_P23 (GPIOS_EXPANDER_BASE + 2*NUM_GROUP + 3) -#define TCA6424_P24 (GPIOS_EXPANDER_BASE + 2*NUM_GROUP + 4) -#define TCA6424_P25 (GPIOS_EXPANDER_BASE + 2*NUM_GROUP + 5) -#define TCA6424_P26 (GPIOS_EXPANDER_BASE + 2*NUM_GROUP + 6) -#define TCA6424_P27 (GPIOS_EXPANDER_BASE + 2*NUM_GROUP + 7) - -#endif - - #ifndef __ASSEMBLY__ extern void __init rk2818_gpio_init(struct rk2818_gpio_bank *data, int nr_banks); extern void __init rk2818_gpio_irq_setup(void); @@ -345,19 +314,12 @@ static inline int irq_to_gpio(unsigned irq) { return (RK2818_PIN_PE0 + (irq - __gpio_to_irq(RK2818_PIN_PE0))); } -#if 0//defined(CONFIG_SPI_GPIO) +#if defined(CONFIG_SPI_GPIO) else if((irq - __gpio_to_irq(FPGA_PIO0_00)) <2*NUM_GROUP) { return (FPGA_PIO0_00 + (irq - __gpio_to_irq(FPGA_PIO0_00))); } #endif -#if defined(CONFIG_IOEXTEND_TCA6424) - else if((irq - __gpio_to_irq(TCA6424_P00)) <3*NUM_GROUP) - { - return (TCA6424_P00 + (irq - __gpio_to_irq(TCA6424_P00))); - } -#endif - else { return -ENXIO; diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig old mode 100755 new mode 100644 index 9fd973202b04..91baae369d7c --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -236,21 +236,13 @@ config GPIO_PCA9554 help Say yes here to access the PCA9554 GPIO EXPANDER -config IOEXTEND_TCA6424 - default y - bool "ROCKCHIP TCA6424 CONTROL" - depends on I2C - help - Say yes here to access the TCA6424 GPIO EXPANDER - - config EXPANDED_GPIO_NUM int "setting the amount of expanded gpios" - default 8 if (GPIO_PCA9554||IOEXTEND_TCA6424) + default 8 if GPIO_PCA9554 default 0 config EXPANDED_GPIO_IRQ_NUM int "setting the amount of expanded gpio irqs" - default 8 if (GPIO_PCA9554||IOEXTEND_TCA6424) + default 8 if GPIO_PCA9554 default 0 endif diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile old mode 100755 new mode 100644 index e4d7b910b4bf..8fef4c219b7b --- a/drivers/gpio/Makefile +++ b/drivers/gpio/Makefile @@ -20,5 +20,3 @@ obj-$(CONFIG_GPIO_BT8XX) += bt8xxgpio.o obj-$(CONFIG_GPIO_VR41XX) += vr41xx_giu.o obj-$(CONFIG_GPIO_WM831X) += wm831x-gpio.o obj-$(CONFIG_GPIO_PCA9554) += pca9554.o -obj-$(CONFIG_IOEXTEND_TCA6424) += tca6424.o -//obj-$(CONFIG_IOEXTEND_TCA6424) += soft_interrupt.o diff --git a/drivers/gpio/tca6424.c b/drivers/gpio/tca6424.c deleted file mode 100755 index 404e4d903595..000000000000 --- a/drivers/gpio/tca6424.c +++ /dev/null @@ -1,983 +0,0 @@ -/* - * Copyright (C) 2010 ROCKCHIP, Inc. - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * 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. - */ -/*******************************************************************/ -/* COPYRIGHT (C) ROCK-CHIPS FUZHOU . ALL RIGHTS RESERVED. */ -/******************************************************************* -FILE : tca6424.c -MODIFY : sxj -DATE : 2010-8-11 -NOTES : -********************************************************************/ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include "../drivers/gpio/tca6424.h" - -#if 0 -#define TCA6424DEB -#define DBG(x...) printk(KERN_INFO x) -#else -#define DBG(x...) -#endif - -#if 1 -#define DBGERR(x...) printk(KERN_INFO x) -#else -#define DBGERR(x...) -#endif - -struct tca6424_chip { - /* the first extern gpio number in all of gpio groups */ - unsigned gpio_start; - unsigned gpio_pin_num; - /* the first gpio irq number in all of irq source */ - unsigned gpio_irq_start; - unsigned irq_pin_num; //ÖжϵĸöÊý - unsigned irq_gpiopin; //¸¸ÖжϵÄÖжϺŠ- unsigned irq_chain; //¸¸ÖжϵÄÖжϺŠ- uint8_t reg_input[TCA6424_PortNum]; - uint8_t reg_output[TCA6424_PortNum]; - uint8_t reg_direction[TCA6424_PortNum]; - uint8_t interrupt_en[TCA6424_PortNum]; // 0 dis - uint8_t interrupt_mask[TCA6424_PortNum];// 0 unmask - uint8_t inttype_set[TCA6424_PortNum]; // Inttype enable - uint8_t inttype[TCA6424_PortNum]; - uint8_t inttype1[TCA6424_PortNum]; - - #ifdef TCA6424_OUTREGLOCK - struct mutex outreglock; - #endif - #ifdef TCA6424_INPUTREGLOCK - struct mutex inputreglock; - #endif - #ifdef TCA6424_CONFIGREGLOCK - struct mutex configreglock; - #endif - struct i2c_client *client; - //struct extgpio_data_s *p; - struct tca6424_platform_data *dyn_pdata; - struct work_struct tca6424_work; - struct gpio_chip gpio_chip; - char **names; -}; - -static const struct i2c_device_id tca6424_id[] = -{ - {"extend_gpio_tca6424",8,}, - { } -}; -MODULE_DEVICE_TABLE(i2c, tca6424_id); - -static short int portnum[TCA6424_PortNum]={ TCA6424_Port0PinNum, - TCA6424_Port1PinNum,TCA6424_Port2PinNum}; -typedef struct _tca6424_access_{ -u8 portreg[TCA6424_PortNum]; -u8 accessflag[TCA6424_PortNum];//0 ²»½øÐвÙ×÷ -} tca6424_access; - -extern inline struct gpio_chip *gpio_to_chip(unsigned gpio); -extern struct lock_class_key gpio_lock_class; -struct workqueue_struct *tca6424workqueue; - -static int tca6424_write_reg(struct i2c_client *client, uint8_t reg, uint8_t val) -{ - int ret=-1; - struct i2c_adapter *adap; - struct i2c_msg msg; - char tx_buf[2]; - if(!client) - return ret; - adap = client->adapter; - tx_buf[0] = reg; - tx_buf[1]= val; - - msg.addr = client->addr; - msg.buf = tx_buf; - msg.len = 1 +1; - msg.flags = client->flags; - msg.scl_rate = TCA6424_I2C_RATE; - - ret = i2c_transfer(adap, &msg, 1); - return ret; -} - -static int tca6424_read_reg(struct i2c_client *client, uint8_t reg, uint8_t *val) -{ - int ret=-1; - struct i2c_adapter *adap; - struct i2c_msg msgs[2]; - - if(!client) - return ret; - adap = client->adapter; - //·¢ËͼĴæÆ÷µØÖ· - msgs[0].addr = client->addr; - msgs[0].buf = ® - msgs[0].flags = client->flags; - msgs[0].len = 1; - msgs[0].scl_rate = TCA6424_I2C_RATE; - //½ÓÊÕÊý¾Ý - msgs[1].buf = val; - msgs[1].addr = client->addr; - msgs[1].flags = client->flags | I2C_M_RD; - msgs[1].len = 1; - msgs[1].scl_rate = TCA6424_I2C_RATE; - - ret = i2c_transfer(adap, msgs, 2); - return ret; - -} - -static int tca6424_gpio_direction_input(struct gpio_chip *gc, uint8_t pin_num) -{ - struct tca6424_chip *chip; - uint8_t gpioPortNum; - uint8_t gpioPortPinNum; - uint8_t reg_val; - uint8_t Regaddr; - int ret = -1; - - chip = container_of(gc, struct tca6424_chip, gpio_chip); - gpioPortNum = pin_num/8; - gpioPortPinNum= pin_num%8; - if((gpioPortNum>=TCA6424_PortNum)||(gpioPortPinNum>=portnum[gpioPortNum])) - return ret; - Regaddr = TCA6424_Config_Reg+gpioPortNum; - - #ifdef TCA6424_CONFIGREGLOCK - if (!mutex_trylock(&chip->configreglock)) - { - DBGERR("**%s[%d]Did not get the configreglock**\n",__FUNCTION__,__LINE__); - return ret; - } - #endif - - reg_val = tca6424setbit(chip->reg_direction[gpioPortNum], gpioPortPinNum); - ret = tca6424_write_reg(chip->client, Regaddr, reg_val); - if(ret<0) - goto err; - - chip->reg_direction[gpioPortNum] = reg_val; -err: - - DBG("**%s[%d],config_reg=%2x,ret=%d**\n",__FUNCTION__,__LINE__,reg_val,ret); - - #ifdef TCA6424_CONFIGREGLOCK - mutex_unlock(&chip->configreglock); - #endif - - return (ret<0)?-1:0; -} - -static int tca6424_gpio_direction_output(struct gpio_chip *gc,uint8_t pin_num, int val) -{ - struct tca6424_chip *chip; - uint8_t gpioPortNum; - uint8_t gpioPortPinNum; - uint8_t reg_val; - uint8_t Regaddr; - int ret = -1; - - chip = container_of(gc, struct tca6424_chip, gpio_chip); - gpioPortNum = pin_num/8; - gpioPortPinNum = pin_num%8; - if((gpioPortNum>=TCA6424_PortNum)||(gpioPortPinNum>=portnum[gpioPortNum])) - return ret; - Regaddr = TCA6424_Config_Reg+gpioPortNum; - - #ifdef TCA6424_CONFIGREGLOCK - if (!mutex_trylock(&chip->configreglock)) - { - DBGERR("**%s[%d]Did not get the configreglock**\n",__FUNCTION__,__LINE__); - return -1; - } - #endif - /* then direction */ - reg_val = tca6424clearbit(chip->reg_direction[gpioPortNum], gpioPortPinNum); - DBG("**%s[%d],reg_val=%2x, Regaddr=%2x,**\n",__FUNCTION__,__LINE__,reg_val,Regaddr); - ret = tca6424_write_reg(chip->client, Regaddr, reg_val); - if(ret<0) - { - #ifdef TCA6424_CONFIGREGLOCK - mutex_unlock(&chip->configreglock); - #endif - DBGERR("**%s[%d] set direction reg is error,reg_val=%x,ret=%d**\n",__FUNCTION__,__LINE__,reg_val,ret); - return ret; - } - chip->reg_direction[gpioPortNum] = reg_val; - #ifdef TCA6424_CONFIGREGLOCK - mutex_unlock(&chip->configreglock); - #endif - ret=-1; - #ifdef TCA6424_OUTREGLOCK - if (!mutex_trylock(&chip->outreglock)) - { - DBGERR("**%s[%d] Did not get the outreglock**\n",__FUNCTION__,__LINE__); - return ret; - } - #endif - /* set output level */ - if (val) - reg_val = tca6424setbit(chip->reg_output[gpioPortNum], gpioPortPinNum); - else - reg_val = tca6424clearbit(chip->reg_output[gpioPortNum], gpioPortPinNum); - - Regaddr = TCA6424_OutputLevel_Reg+gpioPortNum; - ret = tca6424_write_reg(chip->client, Regaddr, reg_val); - if (ret<0) - { - #ifdef TCA6424_OUTREGLOCK - mutex_unlock(&chip->outreglock); - #endif - DBGERR("**%s[%d] set out reg is error,reg_val=%x,ret=%d**\n",__FUNCTION__,__LINE__,reg_val,ret); - return ret; - } - chip->reg_output[gpioPortNum] = reg_val; - - #ifdef TCA6424_OUTREGLOCK - mutex_unlock(&chip->outreglock); - #endif - - DBG("**%s[%d],output_reg=%2x,ret=%d**\n",__FUNCTION__,__LINE__,reg_val,ret); - return (ret<0)?-1:0; -} - -static int tca6424_gpio_get_value(struct gpio_chip *gc, uint8_t pin_num) -{ - struct tca6424_chip *chip; - uint8_t gpioPortNum; - uint8_t gpioPortPinNum; - uint8_t reg_val; - uint8_t Regaddr; - int ret=-1; - - chip = container_of(gc, struct tca6424_chip, gpio_chip); - gpioPortNum = pin_num/8; - gpioPortPinNum= pin_num%8; - - if((gpioPortNum>=TCA6424_PortNum)||(gpioPortPinNum>=portnum[gpioPortNum])) - return -1; - - Regaddr = TCA6424_InputLevel_Reg+gpioPortNum; - - if(!tca6424getbit(chip->reg_direction[gpioPortNum],gpioPortPinNum)) //ÅжϸÃpinÊÇ·ñÉèÖóÉÊä³ö - { - DBG("**it is a output pin**\n"); - return -1; - } - #ifdef TCA6424_INPUTREGLOCK - if (!mutex_trylock(&chip->inputreglock)) - { - DBGERR("**%s[%d]Did not get the inputreglock**\n",__FUNCTION__,__LINE__); - return -1; - } - #endif - - ret = tca6424_read_reg(chip->client, Regaddr, ®_val); - if (ret < 0) - goto err; - chip->reg_input[gpioPortNum] = reg_val; - -err: - #ifdef TCA6424_CONFIGREGLOCK - mutex_unlock(&chip->inputreglock); - #endif - DBGERR("**%s[%d] input_reg=%2x,ret=%d**\n",__FUNCTION__,__LINE__,reg_val,ret); - - return (ret < 0)?-1:((chip->reg_input[gpioPortNum] >> gpioPortPinNum) & 0x01); -} - -static void tca6424_gpio_set_value(struct gpio_chip *gc, uint8_t pin_num, int val) -{ - struct tca6424_chip *chip; - uint8_t gpioPortNum; - uint8_t gpioPortPinNum; - uint8_t reg_val; - uint8_t Regaddr; - int ret=-1; - DBG("**run in the %s**\n",__FUNCTION__); - - chip = container_of(gc, struct tca6424_chip, gpio_chip); - - gpioPortNum = pin_num/8; - gpioPortPinNum= pin_num%8; - - if((gpioPortNum>=TCA6424_PortNum)||(gpioPortPinNum>=portnum[gpioPortNum])) - return;// -1; - - Regaddr = TCA6424_OutputLevel_Reg+gpioPortNum; - - if(tca6424getbit(chip->reg_direction[gpioPortNum],gpioPortPinNum)) // input state - return;// -1; - -#ifdef TCA6424_OUTREGLOCK - if (!mutex_trylock(&chip->outreglock)) - { - DBGERR("**%s[%d] Did not get the outreglock**\n",__FUNCTION__,__LINE__); - return;// -1; - } -#endif - if (val) - reg_val = tca6424setbit(chip->reg_output[gpioPortNum], gpioPortPinNum); - else - reg_val = tca6424clearbit(chip->reg_output[gpioPortNum], gpioPortPinNum); - - ret = tca6424_write_reg(chip->client, Regaddr, reg_val); - if (ret<0) - goto err; - chip->reg_output[gpioPortNum] = reg_val; - -err: - #ifdef TCA6424_OUTREGLOCK - mutex_unlock(&chip->outreglock); - #endif - - DBG("**%s[%d],output_reg=%2x,ret=%d**\n",__FUNCTION__,__LINE__,reg_val,ret); - return;// (ret<0)?-1:0; - -} -static int tca6424_gpio_to_irq(struct gpio_chip *chip,unsigned offset) -{ - struct tca6424_chip *pca_chip = container_of(chip, struct tca6424_chip, gpio_chip); - if(((pca_chip->gpio_start+offset)>=chip->base)&&((pca_chip->gpio_start+offset)<(chip->base+chip->ngpio))) - { - //DBG("**%s,offset=%d,gpio_irq_start=%d,base=%d,ngpio=%d,gpio_irq_start=%d**\n", - // __FUNCTION__,offset,pca_chip->gpio_irq_start,chip->base,chip->ngpio,pca_chip->gpio_irq_start); - return (offset+pca_chip->gpio_irq_start); - } - else - { - return -1; - } -} - -int tca6424_checkrange(int start,int num,int val) -{ - - if((val<(start+num))&&(val>=start)) - return 0; - else return -1; - -} - -static void tca6424_gpio_irq_enable(unsigned irq) -{ - struct irq_desc *desc = irq_to_desc(irq); - //int gpiopinnum; - struct tca6424_chip *pchip=(struct tca6424_chip *)desc->chip_data; - //struct gpio_chip *chip_gpio; - uint8_t gpio_num; - uint8_t gpioPortNum; - uint8_t gpioPortPinNum; - uint8_t tca6424pinnum; - - - if(!tca6424_checkrange(pchip->gpio_irq_start,pchip->irq_pin_num,irq)) - { - tca6424pinnum = irq-pchip->gpio_irq_start; - } - else - { - return; - } - gpioPortNum = tca6424pinnum/8; - gpioPortPinNum= tca6424pinnum%8; - gpio_num=pchip->gpio_start+tca6424pinnum; - if((gpioPortNum>=TCA6424_PortNum)||(gpioPortPinNum>=portnum[gpioPortNum])) - return; - DBG("**%s**\n",__FUNCTION__); - pchip->interrupt_en[gpioPortNum]=tca6424setbit(pchip->interrupt_en[gpioPortNum],gpioPortPinNum); -} -static void tca6424_gpio_irq_disable(unsigned irq) -{ - struct irq_desc *desc = irq_to_desc(irq); - struct tca6424_chip *pchip=(struct tca6424_chip *)desc->chip_data; - uint8_t gpioPortNum; - uint8_t gpioPortPinNum; - uint8_t tca6424pinnum; - - if(!tca6424_checkrange(pchip->gpio_irq_start,pchip->irq_pin_num,irq)) - { - tca6424pinnum=irq-pchip->gpio_irq_start;//irq_to_gpio(irq) - } - else - { - return; - } - gpioPortNum = tca6424pinnum/8; - gpioPortPinNum= tca6424pinnum%8; - - if((gpioPortNum>=TCA6424_PortNum)||(gpioPortPinNum>=portnum[gpioPortNum])) - return; - DBG("**%s**\n",__FUNCTION__); - - pchip->interrupt_en[gpioPortNum]=tca6424clearbit(pchip->interrupt_en[gpioPortNum],gpioPortPinNum); - -} - - -static void tca6424_gpio_irq_mask(unsigned irq) -{ - struct irq_desc *desc = irq_to_desc(irq); - struct tca6424_chip *pchip=(struct tca6424_chip *)desc->chip_data; - uint8_t gpioPortNum; - uint8_t gpioPortPinNum; - uint8_t tca6424pinnum; - - if(!tca6424_checkrange(pchip->gpio_irq_start,pchip->irq_pin_num,irq)) - { - tca6424pinnum=irq-pchip->gpio_irq_start;//irq_to_gpio(irq) - } - else - { - return; - } - gpioPortNum = tca6424pinnum/8; - gpioPortPinNum= tca6424pinnum%8; - - if((gpioPortNum>=TCA6424_PortNum)||(gpioPortPinNum>=portnum[gpioPortNum])) - return; - - DBG("**%s**\n",__FUNCTION__); - - pchip->interrupt_mask[gpioPortNum]=tca6424setbit(pchip->interrupt_mask[gpioPortNum],gpioPortPinNum); - -} - -static void tca6424_gpio_irq_unmask(unsigned irq) -{ - struct irq_desc *desc = irq_to_desc(irq); - //int gpiopinnum;//=irq_to_gpio(irq); - struct tca6424_chip *pchip=(struct tca6424_chip *)desc->chip_data; - uint8_t gpioPortNum; - uint8_t gpioPortPinNum; - uint8_t tca6424pinnum; - - DBG("**%s**\n",__FUNCTION__); - - if(!tca6424_checkrange(pchip->gpio_irq_start,pchip->irq_pin_num,irq)) - { - tca6424pinnum=irq-pchip->gpio_irq_start;//irq_to_gpio(irq) - } - else - { - return; - } - gpioPortNum = tca6424pinnum/8; - gpioPortPinNum= tca6424pinnum%8; - - if((gpioPortNum>=TCA6424_PortNum)||(gpioPortPinNum>=portnum[gpioPortNum])) - return; - pchip->interrupt_mask[gpioPortNum]=tca6424clearbit(pchip->interrupt_mask[gpioPortNum],gpioPortPinNum); -} - -static int tca6424_gpio_irq_type(unsigned int irq, unsigned int type) -{ - struct irq_desc *desc_irq=irq_to_desc(irq); - struct tca6424_chip *pchip=(struct tca6424_chip *)desc_irq->chip_data; - //struct gpio_chip *chip_gpio; - int gpio_num; - uint8_t gpioPortNum; - uint8_t gpioPortPinNum; - uint8_t tca6424pinnum; - if(!tca6424_checkrange(pchip->gpio_irq_start,pchip->irq_pin_num,irq)) - { - tca6424pinnum=irq-pchip->gpio_irq_start;//irq_to_gpio(irq) - gpio_num=pchip->gpio_start+tca6424pinnum; - } - else - return -1; - - gpioPortNum = tca6424pinnum/8; - gpioPortPinNum= tca6424pinnum%8; - //DBG("**%s %d gpio_num=%d,PortNum=%d,PortPinNum=%d**\n",__FUNCTION__,__LINE__,gpio_num,gpioPortNum,gpioPortPinNum); - switch (type) { - case IRQ_TYPE_NONE: - pchip->inttype_set[gpioPortNum]=tca6424clearbit(pchip->inttype_set[gpioPortNum],gpioPortPinNum); - DBG("**%s IRQ_TYPE_NONE**\n",__FUNCTION__); - break; - case IRQ_TYPE_EDGE_RISING: - pchip->inttype_set[gpioPortNum]=tca6424setbit(pchip->inttype_set[gpioPortNum],gpioPortPinNum); - pchip->inttype[gpioPortNum]=tca6424setbit(pchip->inttype[gpioPortNum],gpioPortPinNum); - pchip->inttype1[gpioPortNum]=tca6424clearbit(pchip->inttype1[gpioPortNum],gpioPortPinNum); - DBG("**%s IRQ_TYPE_EDGE_RISING,inttype=%x,inttype1=%x**\n",__FUNCTION__,pchip->inttype[gpioPortNum],pchip->inttype1[gpioPortNum]); - - break; - case IRQ_TYPE_EDGE_FALLING: - pchip->inttype_set[gpioPortNum]=tca6424setbit(pchip->inttype_set[gpioPortNum],gpioPortPinNum); - pchip->inttype[gpioPortNum]=tca6424clearbit(pchip->inttype[gpioPortNum],gpioPortPinNum); - pchip->inttype1[gpioPortNum]=tca6424clearbit(pchip->inttype1[gpioPortNum],gpioPortPinNum); - DBG("**%s IRQ_TYPE_EDGE_RISING,inttype=%x,inttype1=%x**\n",__FUNCTION__,pchip->inttype[gpioPortNum],pchip->inttype1[gpioPortNum]); - - break; - case IRQ_TYPE_EDGE_BOTH: - pchip->inttype_set[gpioPortNum]=tca6424setbit(pchip->inttype_set[gpioPortNum],gpioPortPinNum); - pchip->inttype1[gpioPortNum]=tca6424setbit(pchip->inttype1[gpioPortNum],gpioPortPinNum); - DBG("**%s IRQ_TYPE_EDGE_RISING,inttype=%x,inttype1=%x**\n",__FUNCTION__,pchip->inttype[gpioPortNum],pchip->inttype1[gpioPortNum]); - break; - case IRQ_TYPE_LEVEL_HIGH: - pchip->inttype_set[gpioPortNum]=tca6424clearbit(pchip->inttype_set[gpioPortNum],gpioPortPinNum); - DBG("extern gpios does not support IRQ_TYPE_LEVEL_HIGH irq typ"); - break; - case IRQ_TYPE_LEVEL_LOW: - pchip->inttype_set[gpioPortNum]=tca6424clearbit(pchip->inttype_set[gpioPortNum],gpioPortPinNum); - DBG("extern gpios does not support IRQ_TYPE_LEVEL_LOW irq typ"); - break; - default: - return -EINVAL; - } -return 0; -} - -static int tca6424_gpio_irq_set_wake(unsigned irq, unsigned state) -{ - //no irq wake - return 0; - -} -static struct irq_chip tca6424_gpio_irqchip = { - .name = "extend_gpio_tca6424", - .enable = tca6424_gpio_irq_enable, - .disable = tca6424_gpio_irq_disable, - .mask = tca6424_gpio_irq_mask, - .unmask = tca6424_gpio_irq_unmask, - .set_type = tca6424_gpio_irq_type, - .set_wake = tca6424_gpio_irq_set_wake, -}; - - -static void tca6424_extend_gpio_irq_handler(struct work_struct *work) -{ - struct tca6424_chip *pchip = container_of(work, struct tca6424_chip,tca6424_work); - u8 tempintputreg[TCA6424_PortNum]={0,0,0}; - u8 tempallowint=0; - u8 levelchg=0; - u8 intbit=0; - u8 tempinttype=0; - int i,j; - struct irq_desc *gpio_irq_desc; - unsigned int irq; - if(tca6424_read_reg(pchip->client,TCA6424_InputLevel_Reg,&tempintputreg[0])<0) - { - - DBG("**%s[%d] reading reg is error\n",__FUNCTION__,__LINE__); - enable_irq(pchip->irq_chain); - return; - } - if(tca6424_read_reg(pchip->client,(TCA6424_InputLevel_Reg+1),&tempintputreg[1])<0) - { - - DBG("**%s[%d] reading reg is error\n",__FUNCTION__,__LINE__); - enable_irq(pchip->irq_chain); - return; - } - if(tca6424_read_reg(pchip->client,(TCA6424_InputLevel_Reg+2),&tempintputreg[2])<0) - { - - DBG("**%s[%d] reading reg is error\n",__FUNCTION__,__LINE__); - enable_irq(pchip->irq_chain); - return; - } - DBG("**has run at %s**\n",__FUNCTION__); - if((pchip->interrupt_en[0]==0)&&(pchip->interrupt_en[1]==0)&&(pchip->interrupt_en[2]==0)) - { - memcpy(&pchip->reg_input[0],&tempintputreg[0],sizeof(tempintputreg)); - DBGERR("there are no pin reg irq\n"); - enable_irq(pchip->irq_chain); - return; - } - - for(i=0;iinterrupt_en[i]&pchip->reg_direction[i]&(~pchip->interrupt_mask[i]);// Âú×ãÖжÏÌõ¼þ - levelchg=pchip->reg_input[i]^tempintputreg[i];// ÕÒ³öÇ°ºó״̬²»Ò»ÑùµÄpin - tempinttype=~(tempintputreg[i]^pchip->inttype[i]);// ÕÒ³ö´¥·¢×´Ì¬ºÍµ±Ç°pin״̬һÑùµÄpin£¬×¢ÒâÖ»Ö§³Ölow highÁ½ÖÖpin´¥·¢ - - tempinttype=(~pchip->inttype1[i])&tempinttype;// inttype1 ΪÕæµÄλ¶ÔÓ¦µÄtempinttypeλÇåÁ㣬ÒòΪ¸ÃλֻÊÜinttype1¿ØÖÆ - tempinttype|=pchip->inttype1[i];//µçƽֻҪÊDZ仯¾Í²úÉúÖÐ¶Ï - tempinttype&=pchip->inttype_set[i];//ÒѾ­ÉèÖÃÁËtypeÀàÐÍ - - intbit=tempallowint&levelchg&tempinttype; - DBG(" tempallowint=%x,levelchg=%x,tempinttype=%x,intbit=%d\n",tempallowint,levelchg,tempinttype,intbit); - - if(intbit) - for(j=0;jgpio_irq_start+TCA6424_PortPinNum*i+j; - gpio_irq_desc = irq_to_desc(irq); - gpio_irq_desc->chip->mask(irq); - generic_handle_irq(irq); - gpio_irq_desc->chip->unmask(irq); - - } - } - - pchip->reg_input[i]=tempintputreg[i]; - - } - enable_irq(pchip->irq_chain); - return; -} - -static irqreturn_t tca6424_gpio_irq_handler(int irq, void * dev_id) -{ - - struct irq_desc *gpio_irq_desc = irq_to_desc(irq); - struct tca6424_chip *pchip=(struct tca6424_chip *)gpio_irq_desc->chip_data; - - DBG("******************%s*******************\n",__FUNCTION__); - disable_irq_nosync(pchip->irq_chain); - queue_work(tca6424workqueue,&pchip->tca6424_work); - return IRQ_HANDLED; -} - - -static void tca6424_setup_gpio(struct tca6424_chip *chip, int gpios) -{ - struct gpio_chip *gc; - - gc = &chip->gpio_chip; - - gc->direction_input = tca6424_gpio_direction_input; - gc->direction_output = tca6424_gpio_direction_output; - gc->get = tca6424_gpio_get_value; - gc->set = tca6424_gpio_set_value; - gc->to_irq = tca6424_gpio_to_irq; - - gc->can_sleep = 1; - - gc->base = chip->gpio_start; - gc->ngpio = chip->gpio_pin_num; - gc->label = chip->client->name; - gc->dev = &chip->client->dev; - gc->owner = THIS_MODULE; - gc->names = chip->names; -} - -static void tca6424_gpio_irq_setup(struct tca6424_chip *pchip) -{ - unsigned pioc, irq_num; - int ret; - int testprint1 = 0; - int testprint2 = 0; - struct irq_desc *desc; - irq_num = pchip->gpio_irq_start; //ÖжϺţ¬À©Õ¹ioµÄÖжϺÅÓ¦¸Ã½ô¸úÔÚÄÚ²¿ioÖжϺŵĺóÃæ¡£ÈçrkÄÚ²¿ÖжÏ48¸ö£¬¼ÓÉÏÄÚ²¿gpio 16¸öÐéÄâÖжϣ¬ÕâÀïpinÓ¦¸Ã´Ó48+16¿ªÊ¼ - - for (pioc = 0; pioc < pchip->irq_pin_num; pioc++,irq_num++) - { - lockdep_set_class(&irq_desc[irq_num].lock, &gpio_lock_class); - /* - * Can use the "simple" and not "edge" handler since it's - * shorter, and the AIC handles interrupts sanely. - */ - testprint1 = set_irq_chip(irq_num, &tca6424_gpio_irqchip); - set_irq_handler(irq_num, handle_simple_irq); - testprint2 = set_irq_chip_data(irq_num,(void *)pchip); - desc = irq_to_desc(irq_num); - DBG("**%s line=%d,test1=%d,test2=%d,desc=%x,chipdate=%x,pchip=%x,irq_num=%d**\n",__FUNCTION__,__LINE__,testprint1,testprint2,desc,desc->chip_data,pchip,irq_num); - set_irq_flags(irq_num, IRQF_VALID); - } - ret = gpio_request(pchip->irq_gpiopin,NULL); - if(ret!=0) - { - gpio_free(pchip->irq_gpiopin); - DBG("tca6424_gpio_irq_setup request gpio is err\n"); - } - - gpio_pull_updown(pchip->irq_gpiopin, GPIOPullUp); //gpio ÐèÒªÀ­¸ßirq_to_gpio(pchip->irq_chain) - -#if 0 - - set_irq_chip_data(pchip->irq_chain, pchip); - set_irq_chained_handler(pchip->irq_chain, gpio_irq_handlerxxx); - set_irq_type(pchip->irq_chain,IRQ_TYPE_LEVEL_LOW); - enable_irq(pchip->irq_chain); - -#else - tca6424workqueue=create_workqueue("tca6424 workqueue"); - INIT_WORK(&pchip->tca6424_work,tca6424_extend_gpio_irq_handler); - - set_irq_chip_data(pchip->irq_chain, pchip); - if(request_irq(pchip->irq_chain,tca6424_gpio_irq_handler, IRQF_TRIGGER_LOW, "tca6424", pchip)!=0) - { - DBG("**%s line=%d is err**\n",__FUNCTION__,__LINE__); - } - -#endif -} - -int tca6424_init_pintype(struct tca6424_chip *chip,struct i2c_client *client) -{ - int i; - struct tca6424_platform_data *platform_data=(struct tca6424_platform_data *)client->dev.platform_data; - struct rk2818_gpio_expander_info *tca6424_gpio_settinginfo; - uint8_t reg_output[TCA6424_PortNum]={0,0,0}; - uint8_t reg_direction[TCA6424_PortNum]={0,0,0}; - uint8_t tca6424_pin_num; - uint8_t gpioPortNum; - uint8_t gpioPortPinNum,tca6424_settingpin_num=0; - - if(platform_data) - { - tca6424_gpio_settinginfo=platform_data->settinginfo; - if(tca6424_gpio_settinginfo) - { - tca6424_settingpin_num=platform_data->settinginfolen; - for(i=0;igpio_start,chip->gpio_pin_num,tca6424_gpio_settinginfo[i].gpio_num)) - { - tca6424_pin_num=tca6424_gpio_settinginfo[i].gpio_num-chip->gpio_start; - gpioPortNum = tca6424_pin_num/ TCA6424_PortPinNum; - gpioPortPinNum= tca6424_pin_num% TCA6424_PortPinNum; - //DBG("gpioPortNum=%d,gpioPortNum=%d,tca6424_pin_num=%d,reg_direction=%x,reg_output=%x,reg_input=%x\n",gpioPortNum,gpioPortPinNum,tca6424_pin_num,reg_direction[i],reg_output[i]); - if((gpioPortNum>=TCA6424_PortNum)||(gpioPortPinNum>=portnum[gpioPortNum])) - continue; - if(tca6424_gpio_settinginfo[i].pin_type==GPIO_IN) - { - reg_direction[gpioPortNum]=tca6424setbit(reg_direction[gpioPortNum],gpioPortPinNum); - } - else - { - reg_direction[gpioPortNum]=tca6424clearbit(reg_direction[gpioPortNum],gpioPortPinNum); - if(tca6424_gpio_settinginfo[i].pin_value==GPIO_HIGH) - { - reg_output[gpioPortNum]=tca6424setbit(reg_output[gpioPortNum],gpioPortPinNum); - } - else - { - reg_output[gpioPortNum]=tca6424clearbit(reg_output[gpioPortNum],gpioPortPinNum); - } - } - - } - } - } - } - #ifdef TCA6424_OUTREGLOCK - mutex_init(&chip->outreglock); - #endif - #ifdef TCA6424_INPUTREGLOCK - mutex_init(&chip->inputreglock); - #endif - #ifdef TCA6424_OUTREGLOCK - mutex_init(&chip->configreglock); - #endif - - for(i=0; ireg_direction[i]=reg_direction[i]; - if (tca6424_write_reg(client, (TCA6424_OutputLevel_Reg+i), reg_output[i])<0) - { - DBGERR("*%s %d write reg err*\n",__FUNCTION__,__LINE__); - return -1; - } - chip->reg_output[i]=reg_output[i]; - - if (tca6424_write_reg(client, (TCA6424_Invert_Reg+i), 0)<0) //make sure this reg be 0 - { - DBGERR("*%s %d* write reg err\n",__FUNCTION__,__LINE__); - return -1; - } - - if(tca6424_read_reg(client, (TCA6424_InputLevel_Reg+i), &chip->reg_input[i])<0) - { - DBGERR("*%s %d read reg err*\n",__FUNCTION__,__LINE__); - return -1; - } - //DBG("reg_direction=%x,reg_output=%x,reg_input=%x\n",chip->reg_direction[i],chip->reg_output[i],chip->reg_input[i]); - - } - - return 0; -} -void tca6424_reset_itr(void) -{ - // udelay(1); - //if(client->Channel==I2C_CH1) - //{ - //gpio_direction_output(RK2818_PIN_PE6,GPIO_HIGH); - //gpio_direction_output(RK2818_PIN_PE7,GPIO_LOW); - - //GPIOSetPinDirection(RK2818_PIN_PE6,GPIO_OUT);// data - //GPIOSetPinDirection(RK2818_PIN_PE7,GPIO_OUT); - - rk2818_mux_api_set(GPIOE_U1IR_I2C1_NAME, IOMUXA_GPIO1_A67); - udelay(3); - gpio_set_value(RK2818_PIN_PE7,GPIO_HIGH); - udelay(1); - rk2818_mux_api_set(GPIOE_U1IR_I2C1_NAME, IOMUXA_I2C1); - //} - /*else - { - gpio_direction_output(RK2818_PIN_PE4,GPIO_HIGH); - gpio_direction_output(RK2818_PIN_PE5,GPIO_LOW); - - //GPIOSetPinDirection(RK2818_PIN_PE4,GPIO_OUT);// data - //GPIOSetPinDirection(RK2818_PIN_PE5,GPIO_OUT); - rk2818_mux_api_set(GPIOE_I2C0_SEL_NAME, IOMUXA_GPIO1_A45); - - udelay(3); - gpio_set_value(RK2818_PIN_PE5,GPIO_HIGH); - udelay(1); - - rk2818_mux_api_set(GPIOE_I2C0_SEL_NAME, IOMUXA_I2C0); - }*/ -} - -static int __devinit tca6424_probe(struct i2c_client *client,const struct i2c_device_id *id) -{ - struct tca6424_chip *chip; - struct tca6424_platform_data *pdata; - int ret; - uint8_t val; - - DBG(KERN_ALERT"*******gpio %s in %d line,dev adr is %x**\n",__FUNCTION__,__LINE__,client->addr); - if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) - return -EIO; - - chip = kzalloc(sizeof(struct tca6424_chip), GFP_KERNEL); - if (chip == NULL) - return -ENOMEM; - pdata = client->dev.platform_data; - if (pdata == NULL) { - DBGERR(" %s no platform data\n",__FUNCTION__); - ret = -EINVAL; - goto out_failed; - } - - chip->gpio_start = pdata->gpio_base; - chip->gpio_irq_start =pdata->gpio_irq_start; - chip->gpio_pin_num=pdata->gpio_pin_num; - chip->irq_pin_num = pdata->irq_pin_num; - chip->irq_gpiopin=pdata->tca6424_irq_pin; - chip->irq_chain = gpio_to_irq(pdata->tca6424_irq_pin); - chip->names =pdata->names; - - //DBG("**%s in %d start=%d,irq_start=%d,pin_num=%d,irq_pin_num=%d,irq_gpiopin=%d,irq_chain=%d,**\n", - // __FUNCTION__,__LINE__,chip->gpio_start,chip->gpio_irq_start,chip->gpio_pin_num,chip->irq_pin_num,chip->irq_gpiopin - // ,chip->irq_chain); - - /* initialize cached registers from their original values. - * we can't share this chip with another i2c master. - */ - tca6424_setup_gpio(chip, id->driver_data); - ret = gpiochip_add(&chip->gpio_chip); - if (ret) - goto out_failed; - - if(tca6424_init_pintype(chip,client)) - goto out_failed; - - if (pdata->setup) { - ret = pdata->setup(client, chip->gpio_chip.base, - chip->gpio_chip.ngpio, pdata->context); - if (ret < 0) - DBGERR(" %s setup failed, %d\n",__FUNCTION__,ret); - } - - tca6424_gpio_irq_setup(chip); - i2c_set_clientdata(client, chip); - chip->client = client; - return 0; - -out_failed: - - kfree(chip); - return 0; -} - -static int tca6424_remove(struct i2c_client *client) -{ - struct tca6424_platform_data *pdata = client->dev.platform_data; - struct tca6424_chip *chip = i2c_get_clientdata(client); - int ret = 0; - - if (pdata->teardown) { - ret = pdata->teardown(client, chip->gpio_chip.base, - chip->gpio_chip.ngpio, pdata->context); - if (ret < 0) { - DBGERR(" %s failed, %d\n",__FUNCTION__,ret); - return ret; - } - } - - ret = gpiochip_remove(&chip->gpio_chip); - if (ret) { - dev_err(&client->dev, "%s failed, %d\n", - "gpiochip_remove()", ret); - return ret; - } - kfree(chip); - return 0; -} - - -static struct i2c_driver tca6424_driver = { - .driver = { - .owner = THIS_MODULE, - .name = "extend_gpio_tca6424", - }, - .probe = tca6424_probe, - .remove = tca6424_remove, - .id_table = tca6424_id, -}; - - -static int __init tca6424_init(void) -{ - int tmp; - DBG(KERN_ALERT"**********tca6424_init**********\n"); - tmp=i2c_add_driver(&tca6424_driver); - return 0; -} -static void __exit tca6424_exit(void) -{ - DBG(KERN_ALERT"**********tca6424_exit**********\n"); - i2c_del_driver(&tca6424_driver); -} - -module_init(tca6424_init); -module_exit(tca6424_exit); - -MODULE_AUTHOR(" XXX XXX@rock-chips.com"); -MODULE_DESCRIPTION("Driver for rk2818 tca6424 device"); -MODULE_LICENSE("GPL"); - diff --git a/drivers/gpio/tca6424.h b/drivers/gpio/tca6424.h deleted file mode 100755 index 6cb23359a9c6..000000000000 --- a/drivers/gpio/tca6424.h +++ /dev/null @@ -1,45 +0,0 @@ -/******************************************************************/ -/* Copyright (C) 2008 ROCK-CHIPS FUZHOU . All Rights Reserved. */ -/******************************************************************* -File : gpio.h -Desc : ¶¨ÒågpioµÄ¼Ä´æÆ÷½á¹¹Ìå\¼Ä´æÆ÷λµÄºê¶¨Òå\½Ó¿Úº¯Êý - -Author : -Date : 2008-11-20 -Modified: -Revision: 1.00 -$Log: gpio.h,v $ -*********************************************************************/ -#ifndef _DRIVER_TCA6424_GPIO_H_ -#define _DRIVER_TCA6424_GPIO_H_ - -#define TCA6424_PortNum 3 -#define TCA6424_PortPinNum 8 -#define TCA6424_Port0PinNum 8 -#define TCA6424_Port1PinNum 8 -#define TCA6424_Port2PinNum 8 - -#define TCA6424_TotalPortPinNum (TCA6424_Port0PinNum+TCA6424_Port1PinNum+TCA6424_Port2PinNum) - -#define TCA6424_InputLevel_Reg 0x0 //r only -#define TCA6424_OutputLevel_Reg 0x4 // r/w default ffff -#define TCA6424_Invert_Reg 0x8 // r/w default 0 -#define TCA6424_Config_Reg 0x0c // r/w default ffff - - -#define TCA6424_Auto_InputLevel_Reg 0x80 -#define TCA6424_Auto_OutputLevel_Reg 0x84 -#define TCA6424_Auto_Invert_Reg 0x88 -#define TCA6424_Auto_Config_Reg 0x8c - -#define TCA6424_OUTREGLOCK -#define TCA6424_INPUTREGLOCK -#define TCA6424_CONFIGREGLOCK - -#define tca6424getbit(a,num) (((a)>>(num))&0x01) -#define tca6424setbit(a,num) ((a)|(0x01<<(num))) -#define tca6424clearbit(a,num) ((a)&(~(0x01<<(num)))) - -#define TCA6424_I2C_RATE 300*1000 - -#endif