static int gt9147_read_firmware(struct i2c_client *client, struct gt9147_dev *dev)参数解释

`gt9147_read_firmware` 是一个函数，用于从 GT9147 触摸屏控制器芯片中读取固件数据。该函数接受两个参数：

1. `client`：一个指向 `struct i2c_client` 结构体的指针，代表 I2C 设备的客户端对象。在这里，它用于与 GT9147 控制器进行通信。

2. `dev`：一个指向 `struct gt9147_dev` 结构体的指针，代表 GT9147 触摸屏设备的私有数据结构。它用于在函数中访问和更新与设备相关的信息。

这个函数的主要目的是通过 I2C 总线与 GT9147 控制器通信，并从其固定的存储位置读取固件数据。具体的实现细节需要查看函数的源代码。

相关问题

stm32f10x_gpio.h代码

以下是`stm32f10x_gpio.h`的代码：

/**
  ******************************************************************************
  * @file    stm32f10x_gpio.h
  * @author  MCD Application Team
  * @version V3.5.0
  * @date    09-March-2012
  * @brief   This file contains all the functions prototypes for the GPIO 
  *          firmware library.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
  *
  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License"); You 
  * may not use this file except in compliance with the License. You may obtain 
  * a copy of the License at:
  *
  *        http://www.st.com/software_license_agreement_liberty_v2
  *
  * Unless required by applicable law or agreed to in writing, software 
  * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 
  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 
  * License for the specific language governing permissions and limitations 
  * under the License.
  *
  ******************************************************************************
  */ 


/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F10x_GPIO_H
#define __STM32F10x_GPIO_H

#ifdef __cplusplus
 extern "C" {
#endif

/* Includes ------------------------------------------------------------------*/
#include "stm32f10x.h"

/** @addtogroup STM32F10x_StdPeriph_Driver
  * @{
  */

/** @addtogroup GPIO
  * @{
  */ 


/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/

/** @defgroup GPIO_Exported_Constants
  * @{
  */ 

/** @defgroup GPIO_pins_define 
  * @{
  */ 
#define GPIO_Pin_0                 ((uint16_t)0x0001)  /*!< Pin 0 selected */
#define GPIO_Pin_1                 ((uint16_t)0x0002)  /*!< Pin 1 selected */
#define GPIO_Pin_2                 ((uint16_t)0x0004)  /*!< Pin 2 selected */
#define GPIO_Pin_3                 ((uint16_t)0x0008)  /*!< Pin 3 selected */
#define GPIO_Pin_4                 ((uint16_t)0x0010)  /*!< Pin 4 selected */
#define GPIO_Pin_5                 ((uint16_t)0x0020)  /*!< Pin 5 selected */
#define GPIO_Pin_6                 ((uint16_t)0x0040)  /*!< Pin 6 selected */
#define GPIO_Pin_7                 ((uint16_t)0x0080)  /*!< Pin 7 selected */
#define GPIO_Pin_8                 ((uint16_t)0x0100)  /*!< Pin 8 selected */
#define GPIO_Pin_9                 ((uint16_t)0x0200)  /*!< Pin 9 selected */
#define GPIO_Pin_10                ((uint16_t)0x0400)  /*!< Pin 10 selected */
#define GPIO_Pin_11                ((uint16_t)0x0800)  /*!< Pin 11 selected */
#define GPIO_Pin_12                ((uint16_t)0x1000)  /*!< Pin 12 selected */
#define GPIO_Pin_13                ((uint16_t)0x2000)  /*!< Pin 13 selected */
#define GPIO_Pin_14                ((uint16_t)0x4000)  /*!< Pin 14 selected */
#define GPIO_Pin_15                ((uint16_t)0x8000)  /*!< Pin 15 selected */
#define GPIO_Pin_All               ((uint16_t)0xFFFF)  /*!< All pins selected */

/**
  * @}
  */ 

/** @defgroup GPIO_Speed_Legacy 
  * @{
  */
#define GPIO_Speed_10MHz           GPIO_Speed_Level_1   /*!< I/O output speed: Low 2 MHz */
#define GPIO_Speed_2MHz            GPIO_Speed_Level_2   /*!< I/O output speed: Medium 10 MHz */
#define GPIO_Speed_50MHz           GPIO_Speed_Level_3   /*!< I/O output speed: Fast 50 MHz */

/**
  * @}
  */ 

/** @defgroup GPIO_Mode_define 
  * @{
  */ 
#define GPIO_Mode_AIN              ((uint32_t)0x00000000) /*!< Analog mode */
#define GPIO_Mode_IN_FLOATING      ((uint32_t)0x04)  /*!< Input floating mode */
#define GPIO_Mode_IPD              ((uint32_t)0x28)  /*!< Input pull-down mode */
#define GPIO_Mode_IPU              ((uint32_t)0x48)  /*!< Input pull-up mode */
#define GPIO_Mode_Out_OD           ((uint32_t)0x14)  /*!< Output open-drain mode */
#define GPIO_Mode_Out_PP           ((uint32_t)0x10)  /*!< Output push-pull mode */
#define GPIO_Mode_AF_OD            ((uint32_t)0x1C)  /*!< Alternate function output open-drain mode */
#define GPIO_Mode_AF_PP            ((uint32_t)0x18)  /*!< Alternate function output push-pull mode */

/**
  * @}
  */ 

/** @defgroup GPIO_OType_define 
  * @{
  */ 
#define GPIO_OType_PP              ((uint16_t)0x0000)  /*!< Output push-pull */
#define GPIO_OType_OD              ((uint16_t)0x0010)  /*!< Output open-drain */

/**
  * @}
  */ 

/** @defgroup GPIO_PuPd_define 
  * @{
  */ 
#define GPIO_PuPd_NOPULL           ((uint32_t)0x00000000) /*!< No pull-up or pull-down */
#define GPIO_PuPd_UP               ((uint32_t)0x08)  /*!< Pull-up */
#define GPIO_PuPd_DOWN             ((uint32_t)0x18) /*!< Pull-down */

/**
  * @}
  */ 

/** @defgroup GPIO_Pin_sources 
  * @{
  */ 
#define GPIO_PinSource0            ((uint8_t)0x00)
#define GPIO_PinSource1            ((uint8_t)0x01)
#define GPIO_PinSource2            ((uint8_t)0x02)
#define GPIO_PinSource3            ((uint8_t)0x03)
#define GPIO_PinSource4            ((uint8_t)0x04)
#define GPIO_PinSource5            ((uint8_t)0x05)
#define GPIO_PinSource6            ((uint8_t)0x06)
#define GPIO_PinSource7            ((uint8_t)0x07)
#define GPIO_PinSource8            ((uint8_t)0x08)
#define GPIO_PinSource9            ((uint8_t)0x09)
#define GPIO_PinSource10           ((uint8_t)0x0A)
#define GPIO_PinSource11           ((uint8_t)0x0B)
#define GPIO_PinSource12           ((uint8_t)0x0C)
#define GPIO_PinSource13           ((uint8_t)0x0D)
#define GPIO_PinSource14           ((uint8_t)0x0E)
#define GPIO_PinSource15           ((uint8_t)0x0F)

/**
  * @}
  */ 

/** @defgroup GPIO_Alternate_function_selection_define 
  * @{
  */ 
#define GPIO_AF_0                 ((uint8_t)0x00) /*!< Alternate function 0 */
#define GPIO_AF_1                 ((uint8_t)0x01) /*!< Alternate function 1 */
#define GPIO_AF_2                 ((uint8_t)0x02) /*!< Alternate function 2 */
#define GPIO_AF_3                 ((uint8_t)0x03) /*!< Alternate function 3 */
#define GPIO_AF_4                 ((uint8_t)0x04) /*!< Alternate function 4 */
#define GPIO_AF_5                 ((uint8_t)0x05) /*!< Alternate function 5 */
#define GPIO_AF_6                 ((uint8_t)0x06) /*!< Alternate function 6 */
#define GPIO_AF_7                 ((uint8_t)0x07) /*!< Alternate function 7 */
#define GPIO_AF_8                 ((uint8_t)0x08) /*!< Alternate function 8 */
#define GPIO_AF_9                 ((uint8_t)0x09) /*!< Alternate function 9 */
#define GPIO_AF_10                ((uint8_t)0x0A) /*!< Alternate function 10 */
#define GPIO_AF_11                ((uint8_t)0x0B) /*!< Alternate function 11 */
#define GPIO_AF_12                ((uint8_t)0x0C) /*!< Alternate function 12 */
#define GPIO_AF_13                ((uint8_t)0x0D) /*!< Alternate function 13 */
#define GPIO_AF_14                ((uint8_t)0x0E) /*!< Alternate function 14 */
#define GPIO_AF_15                ((uint8_t)0x0F) /*!< Alternate function 15 */

/**
  * @}
  */ 

/** @defgroup GPIO_interrupt_sources 
  * @{
  */ 
#define GPIO_IT_Edge               ((uint16_t)0x0001)  /*!< Interrupt mode is enabled on rising edge */
#define GPIO_IT_Rising             ((uint16_t)0x0002)  /*!< Interrupt mode is enabled on rising edge */
#define GPIO_IT_Falling            ((uint16_t)0x0004)  /*!< Interrupt mode is enabled on falling edge */
#define GPIO_IT_High               ((uint16_t)0x0008)  /*!< Interrupt mode is enabled on high level */
#define GPIO_IT_Low                ((uint16_t)0x0010)  /*!< Interrupt mode is enabled on low level */
#define GPIO_IT_Port_Source        ((uint16_t)0x0020)  /*!< Interrupt mode is enabled on pin event */

/**
  * @}
  */ 

/** @defgroup GPIO_Legacy 
  * @{
  */
#define GPIO_Mode_Out_Slow         GPIO_Mode_Out_PP    
#define GPIO_Mode_In_Floating      GPIO_Mode_IN_FLOATING
#define GPIO_Mode_In_PU            GPIO_Mode_IPU
#define GPIO_Mode_In_PD            GPIO_Mode_IPD
#define GPIO_Mode_Out_OD           GPIO_Mode_Out_OD    
#define GPIO_Mode_Af_OD            GPIO_Mode_AF_OD     
#define GPIO_Mode_Af_PP            GPIO_Mode_AF_PP     

/**
  * @}
  */ 

/**
  * @}
  */ 

/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */ 

/*  Function used to set the GPIO configuration to the default reset state ****/
void GPIO_DeInit(GPIO_TypeDef* GPIOx);

/* Initialization and Configuration functions *********************************/
void GPIO_Init(GPIO_TypeDef* GPIOx, GPIO_InitTypeDef* GPIO_InitStruct);
void GPIO_StructInit(GPIO_InitTypeDef* GPIO_InitStruct);
void GPIO_PinLockConfig(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin);

/* GPIO Read and Write functions **********************************************/
uint8_t GPIO_ReadInputDataBit(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin);
uint16_t GPIO_ReadInputData(GPIO_TypeDef* GPIOx);
uint8_t GPIO_ReadOutputDataBit(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin);
uint16_t GPIO_ReadOutputData(GPIO_TypeDef* GPIOx);
void GPIO_SetBits(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin);
void GPIO_ResetBits(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin);
void GPIO_WriteBit(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin, BitAction BitVal);
void GPIO_Write(GPIO_TypeDef* GPIOx, uint16_t PortVal);

/* GPIO Alternate functions configuration functions ***************************/
void GPIO_PinAFConfig(GPIO_TypeDef* GPIOx, uint16_t GPIO_PinSource, uint8_t GPIO_AF);

/* GPIO Interrupts configuration functions ************************************/
void GPIO_ITConfig(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin, FunctionalState NewState);
void GPIO_EXTILineConfig(uint8_t GPIO_PortSource, uint8_t GPIO_PinSource);

/* GPIO Low Level Interrupt management ***************************************/
void GPIO_SetInterrupt(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin, Exti_TypeDef PortSource);
void GPIO_ClearInterrupt(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin);

#ifdef __cplusplus
}
#endif

#endif /* __STM32F10x_GPIO_H */

/**
  * @}
  */ 

/**
  * @}
  */ 

/******************* (C) COPYRIGHT 2012 STMicroelectronics *****END OF FILE****/