mirror of
https://github.com/54shady/kernel_drivers_examples.git
synced 2025-08-11 23:32:00 +00:00
USB : add host code
This commit is contained in:
zeroway
@ -574,7 +574,10 @@ Qemu static user
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## 驱动开发
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[SPI driver](./debug/spi/README.md)
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[SPI驱动开发](./debug/spi/README.md)
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[USB驱动,应用开发](./debug/usb/README.md)
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## Misc
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### pincontrl,gpio修改
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@ -69,6 +69,39 @@ Status
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指示命令的执行状态.如果命令正确执行,bCSWStatus返回0 即可
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## 应用
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## 应用实例
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[主机端软件代码](https://github.com/54shady/rkflashtool)
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[HOST端软件代码rkflashtool](https://github.com/54shady/rkflashtool)
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[SLAVE端软件代码rockusb](./cmd_rockusb.c)
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数据通信流程简图
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Host端代码
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使用libusb库进行usb通讯,大致流程如下
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初始化,设置调试级别,使用vid,pid打开设备,连接设备,获取设备通讯接口,获取描述符
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libusb_init
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libusb_set_debug
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libusb_open_device_with_vid_pid
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libusb_kernel_driver_active
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libusb_claim_interface
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libusb_get_device_descriptor
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控制传输接口
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libusb_control_transfer
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bulk传输接口
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libusb_bulk_transfer
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Slave端
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进入下载模式后会枚举成为MassStroage
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循环等待接收命令,处理命令,具体见代码注释
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1265
debug/usb/cmd_rockusb.c
Normal file
1265
debug/usb/cmd_rockusb.c
Normal file
File diff suppressed because it is too large
Load Diff
362
debug/usb/cmd_rockusb.h
Normal file
362
debug/usb/cmd_rockusb.h
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@ -0,0 +1,362 @@
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#ifndef ROCKUSB_H
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#define ROCKUSB_H
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#include <common.h>
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#include <command.h>
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#include <malloc.h>
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#include <usbdevice.h>
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#include <linux/sizes.h>
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#include <asm/unaligned.h>
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#include <usb/udc.h>
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#include <usb_defs.h>
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#if defined(CONFIG_RK_UDC)
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#include <usb/dwc_otg_udc.h>
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#endif
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#ifdef CONFIG_RK_DWC3_UDC
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#include <usb/dwc3_rk_udc.h>
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#endif
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/*******************************************************************
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耕周幅雫凋綜鹿
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*******************************************************************/
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#define K_FW_TEST_UNIT_READY 0x00
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#define K_FW_READ_FLASH_ID 0x01
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#define K_FW_SET_DEVICE_ID 0x02
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#define K_FW_TEST_BAD_BLOCK 0x03
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#define K_FW_READ_10 0x04
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#define K_FW_WRITE_10 0x05
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#define K_FW_ERASE_10 0x06
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#define K_FW_WRITE_SPARE 0x07
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#define K_FW_READ_SPARE 0x08
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#define K_FW_ERASE_10_FORCE 0x0b
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#define K_FW_GET_VERSION 0x0c
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#define K_FW_LBA_READ_10 0x14
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#define K_FW_LBA_WRITE_10 0x15
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#define K_FW_ERASE_SYS_DISK 0x16
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#define K_FW_SDRAM_READ_10 0x17
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#define K_FW_SDRAM_WRITE_10 0x18
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#define K_FW_SDRAM_EXECUTE 0x19
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#define K_FW_READ_FLASH_INFO 0x1A
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#define K_FW_GET_CHIP_VER 0x1B
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#define K_FW_LOW_FORMAT 0x1C
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#define K_FW_SET_RESET_FLAG 0x1E
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#define K_FW_SPI_READ_10 0x21
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#define K_FW_SPI_WRITE_10 0x22
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#define K_FW_SESSION 0X30
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#define K_FW_RESET 0xff
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/* Bulk-only data structures */
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#define RKUSB_ERR
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//#undef RKUSB_WARN
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//#undef RKUSB_INFO
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//#undef RKUSB_DEBUG
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//#define RKUSB_WARN
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//#define RKUSB_INFO
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//#define RKUSB_DEBUG
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#ifdef RKUSB_DEBUG
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#define RKUSBDBG(fmt, args...)\
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printf("DEBUG: [%s]: %d:\n"fmt, __func__, __LINE__, ##args)
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#else
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#define RKUSBDBG(fmt, args...) do {} while (0)
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#endif
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#ifdef RKUSB_INFO
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#define RKUSBINFO(fmt, args...)\
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printf("INFO: [%s]: "fmt, __func__, ##args)
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#else
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#define RKUSBINFO(fmt, args...) do {} while (0)
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#endif
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#ifdef RKUSB_WARN
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#define RKUSBWARN(fmt, args...)\
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printf("WARNING: [%s]: "fmt, __func__, ##args)
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#else
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#define RKUSBWARN(fmt, args...) do {} while (0)
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#endif
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#ifdef RKUSB_ERR
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#define RKUSBERR(fmt, args...)\
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printf("ERROR: [%s]: "fmt, __func__, ##args)
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#else
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#define RKUSBERR(fmt, args...) do {} while (0)
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#endif
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/*
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* dwc otg controller can handle max 0x20000 bytes data for the XferSize in DoEpSiz
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* is 18 bit length, we cut the transfer into smaller pieces
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* block size = 0x200/0x210
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*/
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#define RKUSB_BUFFER_BLOCK_MAX 0x80
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#define USB_DEVICE_CLASS_VENDOR_SPECIFIC 0xFF
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#define USB_SUBCLASS_CODE_SCSI 0x06
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#define STR_LANG 0x00
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#define STR_MANUFACTURER 0x01
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#define STR_PRODUCT 0x02
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#define STR_SERIAL 0x03
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#define STR_CONFIGURATION 0x04
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#define STR_INTERFACE 0x05
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#define STR_COUNT 0x06
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#define CONFIG_USBD_CONFIGURATION_STR "Rockchip RockUsb Configuration"
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#define CONFIG_USBD_INTERFACE_STR "Rockchip RockUsb Interface"
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#define RKUSB_BCD_DEVICE 0x0100
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#define RKUSB_MAXPOWER 200
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#define USB_FLUSH_DELAY_MICROSECS 1000
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#define NUM_CONFIGS 1
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#define NUM_INTERFACES 1
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#define NUM_ENDPOINTS 2
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#define RKUSB_ENDPOINT_BULKIN 1
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#ifdef CONFIG_RK_DWC3_UDC
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#define RKUSB_ENDPOINT_BULKOUT 1
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#else
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#define RKUSB_ENDPOINT_BULKOUT 2
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#endif
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#define RX_EP_INDEX 2
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#define TX_EP_INDEX 1
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#define FW_WR_MODE_PBA 0
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#define FW_WR_MODE_LBA 1
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#define FW_WR_MODE_SDRAM 2
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#define FW_WR_MODE_SPI 3
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#define FW_WR_MODE_SESSION 4
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#define SYS_LOADER_ERR_FLAG 0X1888AAFF
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struct _rkusb_config_desc {
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struct usb_configuration_descriptor configuration_desc;
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struct usb_interface_descriptor interface_desc;
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struct usb_endpoint_descriptor endpoint_desc[NUM_ENDPOINTS];
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};
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static struct cmd_rockusb_interface usbcmd __attribute__((aligned(ARCH_DMA_MINALIGN)));
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/* USB Descriptor Strings */
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static char serial_number[] = "123456789abcdef"; /* what should be the length ?, 33 ? */
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static __attribute__ ((aligned(4))) u8 wstr_lang[4] = {4, USB_DT_STRING, 0x9, 0x4};
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static __attribute__ ((aligned(4))) u8 wstr_manufacturer[2 + 2*(sizeof(CONFIG_USBD_MANUFACTURER)-1)];
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static __attribute__ ((aligned(4))) u8 wstr_product[2 + 2*(sizeof(CONFIG_USBD_PRODUCT_NAME)-1)];
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static __attribute__ ((aligned(4))) u8 wstr_serial[2 + 2*(sizeof(serial_number) - 1)];
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static __attribute__ ((aligned(4))) u8 wstr_configuration[2 + 2*(sizeof(CONFIG_USBD_CONFIGURATION_STR)-1)];
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static __attribute__ ((aligned(4))) u8 wstr_interface[2 + 2*(sizeof(CONFIG_USBD_INTERFACE_STR)-1)];
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/* defined and used by gadget/ep0.c */
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extern struct usb_string_descriptor **usb_strings;
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/* USB descriptors */
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static struct usb_device_descriptor device_descriptor = {
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.bLength = sizeof(struct usb_device_descriptor),
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.bDescriptorType = USB_DT_DEVICE,
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.bcdUSB = cpu_to_le16(0x0201),
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.bDeviceClass = 0x00,
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.bDeviceSubClass = 0x00,
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.bDeviceProtocol = 0x00,
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.bMaxPacketSize0 = EP0_MAX_PACKET_SIZE,
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.idVendor = cpu_to_le16(CONFIG_USBD_VENDORID),
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.idProduct = cpu_to_le16(CONFIG_USBD_PRODUCTID_ROCKUSB),
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.bcdDevice = cpu_to_le16(RKUSB_BCD_DEVICE),
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.iManufacturer = 0,
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.iProduct = 0,
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.iSerialNumber = 0,
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.bNumConfigurations = NUM_CONFIGS
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};
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static struct _rkusb_config_desc rkusb_config_desc = {
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.configuration_desc = {
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.bLength = sizeof(struct usb_configuration_descriptor),
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.bDescriptorType = USB_DT_CONFIG,
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.wTotalLength = cpu_to_le16(sizeof(struct _rkusb_config_desc)),
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.bNumInterfaces = NUM_INTERFACES,
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.bConfigurationValue = 1,
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.iConfiguration = 0,
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.bmAttributes = BMATTRIBUTE_RESERVED,
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.bMaxPower = RKUSB_MAXPOWER,
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},
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.interface_desc = {
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.bLength = sizeof(struct usb_interface_descriptor),
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.bDescriptorType = USB_DT_INTERFACE,
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.bInterfaceNumber = 0,
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.bAlternateSetting = 0,
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.bNumEndpoints = NUM_ENDPOINTS,
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.bInterfaceClass = USB_DEVICE_CLASS_VENDOR_SPECIFIC,
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.bInterfaceSubClass = USB_SUBCLASS_CODE_SCSI,
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.bInterfaceProtocol = 0x05,
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.iInterface = 0,
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},
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.endpoint_desc = {
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{
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.bLength = sizeof(struct usb_endpoint_descriptor),
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.bDescriptorType = USB_DT_ENDPOINT,
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/* XXX: can't the address start from 0x1, currently
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seeing problem with "epinfo" */
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.bEndpointAddress = RKUSB_ENDPOINT_BULKOUT | USB_DIR_OUT,
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.bmAttributes = USB_ENDPOINT_XFER_BULK,
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.wMaxPacketSize = 0x200,
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.bInterval = 0x00,
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},
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{
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.bLength = sizeof(struct usb_endpoint_descriptor),
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.bDescriptorType = USB_DT_ENDPOINT,
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/* XXX: can't the address start from 0x1, currently
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seeing problem with "epinfo" */
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.bEndpointAddress = RKUSB_ENDPOINT_BULKIN | USB_DIR_IN,
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.bmAttributes = USB_ENDPOINT_XFER_BULK,
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.wMaxPacketSize = 0x200,
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.bInterval = 0x00,
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},
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},
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};
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#ifdef CONFIG_RK_UDC
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static struct usb_bos_descriptor rkusb_bos_desc = {
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.bLength = (sizeof (struct usb_bos_descriptor) - 3),
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.bDescriptorType = USB_DESCRIPTOR_TYPE_BOS,
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.wTotalLength = sizeof (struct usb_bos_descriptor),
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.bNumDeviceCaps = 0x01,
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.bCapHeaderLength = (sizeof (struct usb_bos_descriptor) - 5),
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.bCapabilityType = USB_DT_DEVICE_CAPABILITY,
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.bDevCapabilityType = 0
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};
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#endif
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static struct usb_string_descriptor *rkusb_string_table[STR_COUNT];
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#ifdef CONFIG_RK_UDC
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static char rockusb_name[] = "rockchip_rockusb";
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static struct usb_interface_descriptor interface_descriptors[NUM_INTERFACES];
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static struct usb_endpoint_descriptor *ep_descriptor_ptrs[NUM_ENDPOINTS];
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static struct usb_device_instance device_instance[1];
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static struct usb_bus_instance bus_instance[1];
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static struct usb_configuration_instance config_instance[NUM_CONFIGS];
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static struct usb_interface_instance interface_instance[NUM_INTERFACES];
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static struct usb_alternate_instance alternate_instance[NUM_INTERFACES];
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static struct usb_endpoint_instance endpoint_instance[NUM_ENDPOINTS + 1];
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#endif
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/* USB specific */
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/* Command Block Wrapper */
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struct fsg_bulk_cb_wrap {
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__le32 Signature; /* Contains 'USBC' */
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u32 Tag; /* Unique per command id */
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__le32 DataTransferLength; /* Size of the data */
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u8 Flags; /* Direction in bit 7 */
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u8 Lun; /* LUN (normally 0) */
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u8 Length; /* Of the CDB, <= MAX_COMMAND_SIZE */
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u8 CDB[16]; /* Command Data Block */
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};
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#define USB_BULK_CB_WRAP_LEN 31
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#define USB_BULK_CB_SIG 0x43425355 /* Spells out USBC */
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#define USB_BULK_IN_FLAG 0x80
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/* Command Status Wrapper */
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struct bulk_cs_wrap {
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__le32 Signature; /* Should = 'USBS' */
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u32 Tag; /* Same as original command */
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__le32 Residue; /* Amount not transferred */
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u8 Status; /* See below */
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};
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#define USB_BULK_CS_WRAP_LEN 13
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#define USB_BULK_CS_SIG 0x53425355 /* Spells out 'USBS' */
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#define USB_STATUS_PASS 0
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#define USB_STATUS_FAIL 1
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#define USB_STATUS_PHASE_ERROR 2
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#define RKUSB_STATUS_IDLE 0
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#define RKUSB_STATUS_CMD 1
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#define RKUSB_STATUS_RXDATA 2
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#define RKUSB_STATUS_TXDATA 3
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#define RKUSB_STATUS_CSW 4
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#define RKUSB_STATUS_RXDATA_PREPARE 5
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#define RKUSB_STATUS_TXDATA_PREPARE 6
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/*******************************************************************
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CSW卦指彜蓑峙
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*******************************************************************/
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#define CSW_GOOD 0x00
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#define CSW_FAIL 0x01
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/*
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* cbw中的CDB的内容是自定义的
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* offset在cdb中的index即CDB[2]
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* nsectors在cdb中的index即CDB[7]
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*/
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#define OFFSET_IN_CDB_INDEX 2
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#define NSECTORS_IN_CDB_INDEX 7
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struct cmd_rockusb_preread {
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uint8_t *pre_buffer;
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uint32_t pre_lba;
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uint32_t pre_blocks;
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};
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struct cmd_rockusb_interface {
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uint8_t cmd;
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uint8_t status;
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unsigned int configured;
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uint8_t *rx_buffer[2];
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uint8_t *tx_buffer[2];
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uint8_t rxbuf_num;
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uint8_t txbuf_num;
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/*
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* Download size, if download has to be done. This can be checked to find
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* whether next packet is a command or a data
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*/
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uint32_t d_size;
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/* Data downloaded so far */
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uint32_t d_bytes;
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/* Download status, < 0 when error, > 0 when complete */
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uint32_t d_status;
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/* Upload size, if download has to be done */
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uint32_t u_size;
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/* Data uploaded so far */
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uint32_t u_bytes;
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uint32_t lba;
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uint32_t cmnd;
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uint32_t imgwr_mode;
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uint16_t data_size;
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uint32_t data_size_from_cmnd;
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uint32_t tag;
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uint32_t residue;
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uint32_t usb_amount_left;
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uint32_t transfer_size;
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int transfer_status;
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uint32_t receive_size;
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int receive_status;
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uint32_t reset_flag;
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#ifdef CONFIG_RK_DWC3_UDC
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struct dwc3_giveback_data rx_giveback;
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struct dwc3_giveback_data tx_giveback;
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#endif
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struct bulk_cs_wrap csw __attribute__((aligned(ARCH_DMA_MINALIGN)));
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struct fsg_bulk_cb_wrap cbw __attribute__((aligned(ARCH_DMA_MINALIGN)));
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struct cmd_rockusb_preread pre_read __attribute__((aligned(ARCH_DMA_MINALIGN)));
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};
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/* Declare functions */
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extern void FW_SorageLowFormatEn(int en);
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#ifdef CONFIG_RK_UDC
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static void rkusb_init_endpoints(void);
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#endif
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int do_rockusb(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
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#endif /* ROCKUSB_H */
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BIN
debug/usb/sequenceDiagram.png
Normal file
BIN
debug/usb/sequenceDiagram.png
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 9.9 KiB |
16
debug/usb/sequenceDiagram.txt
Normal file
16
debug/usb/sequenceDiagram.txt
Normal file
@ -0,0 +1,16 @@
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@startuml
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participant "Host(rkflashtool)" as host
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participant "Slave(rockusb)" as slave
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host -> slave : send_cbw
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note right : usb_read
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slave -> host : send_data
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slave -> host : send_csw
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host -> slave : send_cbw
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note right : usb_write
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host -> slave : send_data
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slave -> host : send_csw
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@enduml
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