1/*USB 1.1,2.0 device*/ 2 3#include <common.h> 4#include <asm/processor.h> 5 6#if (defined(CONFIG_440EP) || defined(CONFIG_440EPX)) && defined(CONFIG_CMD_USB) 7 8#include <usb.h> 9#include <asm/ppc4xx-uic.h> 10#include "usbdev.h" 11 12#define USB_DT_DEVICE 0x01 13#define USB_DT_CONFIG 0x02 14#define USB_DT_STRING 0x03 15#define USB_DT_INTERFACE 0x04 16#define USB_DT_ENDPOINT 0x05 17 18int set_value = -1; 19 20void process_endpoints(unsigned short usb2d0_intrin) 21{ 22 /*will hold the packet received */ 23 struct usb_device_descriptor usb_device_packet; 24 struct usb_configuration_descriptor usb_config_packet; 25 struct usb_string_descriptor usb_string_packet; 26 struct devrequest setup_packet; 27 unsigned int *setup_packet_pt; 28 unsigned char *packet_pt = NULL; 29 int temp, temp1; 30 31 int i; 32 33 /*printf("{USB device} - endpoint 0x%X \n", usb2d0_intrin); */ 34 35 /*set usb address, seems to not work unless it is done in the next 36 interrupt, so that is why it is done this way */ 37 if (set_value != -1) 38 *(unsigned char *)USB2D0_FADDR_8 = (unsigned char)set_value; 39 40 /*endpoint 1 */ 41 if (usb2d0_intrin & 0x01) { 42 setup_packet_pt = (unsigned int *)&setup_packet; 43 44 /*copy packet */ 45 setup_packet_pt[0] = *(unsigned int *)USB2D0_FIFO_0; 46 setup_packet_pt[1] = *(unsigned int *)USB2D0_FIFO_0; 47 temp = *(unsigned int *)USB2D0_FIFO_0; 48 temp1 = *(unsigned int *)USB2D0_FIFO_0; 49 50 /*do some swapping */ 51 setup_packet.value = swap_16(setup_packet.value); 52 setup_packet.index = swap_16(setup_packet.index); 53 setup_packet.length = swap_16(setup_packet.length); 54 55 /*clear rx packet */ 56 *(unsigned short *)USB2D0_INCSR0_8 = 0x48; 57 58 /*printf("0x%X 0x%X 0x%X 0x%X 0x%X 0x%X 0x%X\n", setup_packet.requesttype, 59 setup_packet.request, setup_packet.value, 60 setup_packet.index, setup_packet.length, temp, temp1 ); */ 61 62 switch (setup_packet.request) { 63 case USB_REQ_GET_DESCRIPTOR: 64 65 switch (setup_packet.value >> 8) { 66 case USB_DT_DEVICE: 67 /*create packet */ 68 usb_device_packet.bLength = 18; 69 usb_device_packet.bDescriptorType = 70 USB_DT_DEVICE; 71#ifdef USB_2_0_DEVICE 72 usb_device_packet.bcdUSB = swap_16(0x200); 73#else 74 usb_device_packet.bcdUSB = swap_16(0x110); 75#endif 76 usb_device_packet.bDeviceClass = 0xff; 77 usb_device_packet.bDeviceSubClass = 0; 78 usb_device_packet.bDeviceProtocol = 0; 79 usb_device_packet.bMaxPacketSize0 = 32; 80 usb_device_packet.idVendor = swap_16(1); 81 usb_device_packet.idProduct = swap_16(2); 82 usb_device_packet.bcdDevice = swap_16(0x300); 83 usb_device_packet.iManufacturer = 1; 84 usb_device_packet.iProduct = 1; 85 usb_device_packet.iSerialNumber = 1; 86 usb_device_packet.bNumConfigurations = 1; 87 88 /*put packet in fifo */ 89 packet_pt = (unsigned char *)&usb_device_packet; 90 break; 91 92 case USB_DT_CONFIG: 93 /*create packet */ 94 usb_config_packet.bLength = 9; 95 usb_config_packet.bDescriptorType = 96 USB_DT_CONFIG; 97 usb_config_packet.wTotalLength = swap_16(25); 98 usb_config_packet.bNumInterfaces = 1; 99 usb_config_packet.bConfigurationValue = 1; 100 usb_config_packet.iConfiguration = 0; 101 usb_config_packet.bmAttributes = 0x40; 102 usb_config_packet.bMaxPower = 0; 103 104 /*put packet in fifo */ 105 packet_pt = (unsigned char *)&usb_config_packet; 106 break; 107 108 case USB_DT_STRING: 109 /*create packet */ 110 usb_string_packet.bLength = 2; 111 usb_string_packet.bDescriptorType = 112 USB_DT_STRING; 113 usb_string_packet.wData[0] = 0x0094; 114 115 /*put packet in fifo */ 116 packet_pt = (unsigned char *)&usb_string_packet; 117 break; 118 } 119 120 /*put packet in fifo */ 121 for (i = 0; i < (setup_packet.length); i++) { 122 *(unsigned char *)USB2D0_FIFO_0 = packet_pt[i]; 123 } 124 125 /*give tx command */ 126 *(unsigned short *)USB2D0_INCSR0_8 = 0x0a; 127 128 break; 129 130 case USB_REQ_SET_ADDRESS: 131 132 /*copy usb address */ 133 set_value = setup_packet.value; 134 135 break; 136 } 137 138 } 139} 140 141void process_other(unsigned char usb2d0_intrusb) 142{ 143 144 /*check for sof */ 145 if (usb2d0_intrusb & 0x08) { 146 /*printf("{USB device} - sof detected\n"); */ 147 } 148 149 /*check for reset */ 150 if (usb2d0_intrusb & 0x04) { 151 /*printf("{USB device} - reset detected\n"); */ 152 153 /*copy usb address of zero, need to do this when usb reset */ 154 set_value = 0; 155 } 156 157 if (usb2d0_intrusb & 0x02) { 158 /*printf("{USB device} - resume detected\n"); */ 159 } 160 161 if (usb2d0_intrusb & 0x01) { 162 /*printf("{USB device} - suspend detected\n"); */ 163 } 164} 165 166int usbInt(void) 167{ 168 /*Must read these 2 registers and use values to clear interrupts. If you 169 do not read them then the interrupt will not be cleared. If you do not 170 use the variable the optimizer will not do a read. */ 171 volatile unsigned short usb2d0_intrin = 172 *(unsigned short *)USB2D0_INTRIN_16; 173 volatile unsigned char usb2d0_intrusb = 174 *(unsigned char *)USB2D0_INTRUSB_8; 175 176 /*check if there was an endpoint interrupt */ 177 if (usb2d0_intrin != 0) { 178 process_endpoints(usb2d0_intrin); 179 } 180 181 /*check for other interrupts */ 182 if (usb2d0_intrusb != 0) { 183 process_other(usb2d0_intrusb); 184 } 185 186 return 0; 187} 188 189#if defined(CONFIG_440EPX) 190void usb_dev_init() 191{ 192 printf("USB 2.0 Device init\n"); 193 194 /*usb dev init */ 195 *(unsigned char *)USB2D0_POWER_8 = 0xa1; /* 2.0 */ 196 197 /*enable interrupts */ 198 *(unsigned char *)USB2D0_INTRUSBE_8 = 0x0f; 199 200 irq_install_handler(VECNUM_USBDEV, (interrupt_handler_t *) usbInt, 201 NULL); 202} 203#else 204void usb_dev_init() 205{ 206#ifdef USB_2_0_DEVICE 207 printf("USB 2.0 Device init\n"); 208 /*select 2.0 device */ 209 mtsdr(SDR0_USB0, 0x0); /* 2.0 */ 210 211 /*usb dev init */ 212 *(unsigned char *)USB2D0_POWER_8 = 0xa1; /* 2.0 */ 213#else 214 printf("USB 1.1 Device init\n"); 215 /*select 1.1 device */ 216 mtsdr(SDR0_USB0, 0x2); /* 1.1 */ 217 218 /*usb dev init */ 219 *(unsigned char *)USB2D0_POWER_8 = 0xc0; /* 1.1 */ 220#endif 221 222 /*enable interrupts */ 223 *(unsigned char *)USB2D0_INTRUSBE_8 = 0x0f; 224 225 irq_install_handler(VECNUM_USBDEV, (interrupt_handler_t *) usbInt, 226 NULL); 227} 228#endif 229 230#endif /* CONFIG_440EP || CONFIG_440EPX */ 231