Ilya I
/
pub_UsbHost
Host/usbhost_lpc17xx.c@0:1802fb31b938, 2010-01-21 (annotated)
- Committer:
- iva2k
- Date:
- Thu Jan 21 01:15:42 2010 +0000
- Revision:
- 0:1802fb31b938
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
iva2k | 0:1802fb31b938 | 1 | /* |
iva2k | 0:1802fb31b938 | 2 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 3 | * NXP USB Host Stack |
iva2k | 0:1802fb31b938 | 4 | * |
iva2k | 0:1802fb31b938 | 5 | * (c) Copyright 2008, NXP SemiConductors |
iva2k | 0:1802fb31b938 | 6 | * (c) Copyright 2008, OnChip Technologies LLC |
iva2k | 0:1802fb31b938 | 7 | * All Rights Reserved |
iva2k | 0:1802fb31b938 | 8 | * |
iva2k | 0:1802fb31b938 | 9 | * www.nxp.com |
iva2k | 0:1802fb31b938 | 10 | * www.onchiptech.com |
iva2k | 0:1802fb31b938 | 11 | * |
iva2k | 0:1802fb31b938 | 12 | * File : usbhost_lpc17xx.c |
iva2k | 0:1802fb31b938 | 13 | * Programmer(s) : Ravikanth.P |
iva2k | 0:1802fb31b938 | 14 | * Version : |
iva2k | 0:1802fb31b938 | 15 | * |
iva2k | 0:1802fb31b938 | 16 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 17 | */ |
iva2k | 0:1802fb31b938 | 18 | |
iva2k | 0:1802fb31b938 | 19 | /* |
iva2k | 0:1802fb31b938 | 20 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 21 | * INCLUDE HEADER FILES |
iva2k | 0:1802fb31b938 | 22 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 23 | */ |
iva2k | 0:1802fb31b938 | 24 | |
iva2k | 0:1802fb31b938 | 25 | #include "usbhost_lpc17xx.h" |
iva2k | 0:1802fb31b938 | 26 | |
iva2k | 0:1802fb31b938 | 27 | /* |
iva2k | 0:1802fb31b938 | 28 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 29 | * GLOBAL VARIABLES |
iva2k | 0:1802fb31b938 | 30 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 31 | */ |
iva2k | 0:1802fb31b938 | 32 | int gUSBConnected; |
iva2k | 0:1802fb31b938 | 33 | |
iva2k | 0:1802fb31b938 | 34 | volatile USB_INT32U HOST_RhscIntr = 0; /* Root Hub Status Change interrupt */ |
iva2k | 0:1802fb31b938 | 35 | volatile USB_INT32U HOST_WdhIntr = 0; /* Semaphore to wait until the TD is submitted */ |
iva2k | 0:1802fb31b938 | 36 | volatile USB_INT08U HOST_TDControlStatus = 0; |
iva2k | 0:1802fb31b938 | 37 | volatile HCED *EDCtrl; /* Control endpoint descriptor structure */ |
iva2k | 0:1802fb31b938 | 38 | volatile HCED *EDBulkIn; /* BulkIn endpoint descriptor structure */ |
iva2k | 0:1802fb31b938 | 39 | volatile HCED *EDBulkOut; /* BulkOut endpoint descriptor structure */ |
iva2k | 0:1802fb31b938 | 40 | volatile HCTD *TDHead; /* Head transfer descriptor structure */ |
iva2k | 0:1802fb31b938 | 41 | volatile HCTD *TDTail; /* Tail transfer descriptor structure */ |
iva2k | 0:1802fb31b938 | 42 | volatile HCCA *Hcca; /* Host Controller Communications Area structure */ |
iva2k | 0:1802fb31b938 | 43 | USB_INT16U *TDBufNonVol; /* Identical to TDBuffer just to reduce compiler warnings */ |
iva2k | 0:1802fb31b938 | 44 | volatile USB_INT08U *TDBuffer; /* Current Buffer Pointer of transfer descriptor */ |
iva2k | 0:1802fb31b938 | 45 | volatile USB_INT08U *FATBuffer; /* Buffer used by FAT file system */ |
iva2k | 0:1802fb31b938 | 46 | volatile USB_INT08U *UserBuffer; /* Buffer used by application */ |
iva2k | 0:1802fb31b938 | 47 | |
iva2k | 0:1802fb31b938 | 48 | /* |
iva2k | 0:1802fb31b938 | 49 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 50 | * DELAY IN MILLI SECONDS |
iva2k | 0:1802fb31b938 | 51 | * |
iva2k | 0:1802fb31b938 | 52 | * Description: This function provides a delay in milli seconds |
iva2k | 0:1802fb31b938 | 53 | * |
iva2k | 0:1802fb31b938 | 54 | * Arguments : delay The delay required |
iva2k | 0:1802fb31b938 | 55 | * |
iva2k | 0:1802fb31b938 | 56 | * Returns : None |
iva2k | 0:1802fb31b938 | 57 | * |
iva2k | 0:1802fb31b938 | 58 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 59 | */ |
iva2k | 0:1802fb31b938 | 60 | |
iva2k | 0:1802fb31b938 | 61 | void Host_DelayMS (USB_INT32U delay) |
iva2k | 0:1802fb31b938 | 62 | { |
iva2k | 0:1802fb31b938 | 63 | volatile USB_INT32U i; |
iva2k | 0:1802fb31b938 | 64 | |
iva2k | 0:1802fb31b938 | 65 | |
iva2k | 0:1802fb31b938 | 66 | for (i = 0; i < delay; i++) { |
iva2k | 0:1802fb31b938 | 67 | Host_DelayUS(1000); |
iva2k | 0:1802fb31b938 | 68 | } |
iva2k | 0:1802fb31b938 | 69 | } |
iva2k | 0:1802fb31b938 | 70 | |
iva2k | 0:1802fb31b938 | 71 | /* |
iva2k | 0:1802fb31b938 | 72 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 73 | * DELAY IN MICRO SECONDS |
iva2k | 0:1802fb31b938 | 74 | * |
iva2k | 0:1802fb31b938 | 75 | * Description: This function provides a delay in micro seconds |
iva2k | 0:1802fb31b938 | 76 | * |
iva2k | 0:1802fb31b938 | 77 | * Arguments : delay The delay required |
iva2k | 0:1802fb31b938 | 78 | * |
iva2k | 0:1802fb31b938 | 79 | * Returns : None |
iva2k | 0:1802fb31b938 | 80 | * |
iva2k | 0:1802fb31b938 | 81 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 82 | */ |
iva2k | 0:1802fb31b938 | 83 | |
iva2k | 0:1802fb31b938 | 84 | void Host_DelayUS (USB_INT32U delay) |
iva2k | 0:1802fb31b938 | 85 | { |
iva2k | 0:1802fb31b938 | 86 | volatile USB_INT32U i; |
iva2k | 0:1802fb31b938 | 87 | |
iva2k | 0:1802fb31b938 | 88 | |
iva2k | 0:1802fb31b938 | 89 | for (i = 0; i < (4 * delay); i++) { /* This logic was tested. It gives app. 1 micro sec delay */ |
iva2k | 0:1802fb31b938 | 90 | ; |
iva2k | 0:1802fb31b938 | 91 | } |
iva2k | 0:1802fb31b938 | 92 | } |
iva2k | 0:1802fb31b938 | 93 | |
iva2k | 0:1802fb31b938 | 94 | /* |
iva2k | 0:1802fb31b938 | 95 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 96 | * INITIALIZE THE HOST CONTROLLER |
iva2k | 0:1802fb31b938 | 97 | * |
iva2k | 0:1802fb31b938 | 98 | * Description: This function initializes lpc17xx host controller |
iva2k | 0:1802fb31b938 | 99 | * |
iva2k | 0:1802fb31b938 | 100 | * Arguments : None |
iva2k | 0:1802fb31b938 | 101 | * |
iva2k | 0:1802fb31b938 | 102 | * Returns : |
iva2k | 0:1802fb31b938 | 103 | * |
iva2k | 0:1802fb31b938 | 104 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 105 | */ |
iva2k | 0:1802fb31b938 | 106 | void Host_Init (void) |
iva2k | 0:1802fb31b938 | 107 | { |
iva2k | 0:1802fb31b938 | 108 | USB_INT32U HostBaseAddr; |
iva2k | 0:1802fb31b938 | 109 | |
iva2k | 0:1802fb31b938 | 110 | PRINT_Log("In Host_Init, LPC_USB=0x%08X\r\n", LPC_USB); |
iva2k | 0:1802fb31b938 | 111 | //NVIC_DisableIRQ(USB_IRQn); /* Disable the USB interrupt source */ |
iva2k | 0:1802fb31b938 | 112 | |
iva2k | 0:1802fb31b938 | 113 | LPC_SC->PCONP |= (1UL<<31); // set PCUSB bit |
iva2k | 0:1802fb31b938 | 114 | #if 1 |
iva2k | 0:1802fb31b938 | 115 | PRINT_Log("1: OTGClkCtrl == %08X, OTGClkSt == %08X\r\n", LPC_USB->OTGClkCtrl, LPC_USB->OTGClkSt); |
iva2k | 0:1802fb31b938 | 116 | LPC_USB->OTGClkCtrl = 0x0000001F; |
iva2k | 0:1802fb31b938 | 117 | PRINT_Log("2: OTGClkCtrl == %08X, OTGClkSt == %08X\r\n", LPC_USB->OTGClkCtrl, LPC_USB->OTGClkSt); |
iva2k | 0:1802fb31b938 | 118 | while ((LPC_USB->OTGClkSt & 0x0000001F) == 0) { /* Host clock is available */ |
iva2k | 0:1802fb31b938 | 119 | ; |
iva2k | 0:1802fb31b938 | 120 | } |
iva2k | 0:1802fb31b938 | 121 | #else |
iva2k | 0:1802fb31b938 | 122 | PRINT_Log("1: USBClkCtrl == %08X, USBClkSt == %08X\r\n", LPC_USB->USBClkCtrl, LPC_USB->USBClkSt); |
iva2k | 0:1802fb31b938 | 123 | LPC_USB->USBClkCtrl |= 0x01; /* Enable USB host clock */ |
iva2k | 0:1802fb31b938 | 124 | PRINT_Log("2: USBClkCtrl == %08X, USBClkSt == %08X\r\n", LPC_USB->USBClkCtrl, LPC_USB->USBClkSt); |
iva2k | 0:1802fb31b938 | 125 | // while ((LPC_USB->USBClkSt & 0x00000001) == 0) { /* Host clock is available */ |
iva2k | 0:1802fb31b938 | 126 | // ; |
iva2k | 0:1802fb31b938 | 127 | // } |
iva2k | 0:1802fb31b938 | 128 | wait(0.5); |
iva2k | 0:1802fb31b938 | 129 | #endif |
iva2k | 0:1802fb31b938 | 130 | |
iva2k | 0:1802fb31b938 | 131 | PRINT_Log("3: OTGStCtrl=%08X\r\n", LPC_USB->OTGStCtrl); |
iva2k | 0:1802fb31b938 | 132 | #if 1 |
iva2k | 0:1802fb31b938 | 133 | LPC_USB->OTGStCtrl = 1; // ? 0x3; |
iva2k | 0:1802fb31b938 | 134 | PRINT_Log("4\r\n"); |
iva2k | 0:1802fb31b938 | 135 | #endif |
iva2k | 0:1802fb31b938 | 136 | |
iva2k | 0:1802fb31b938 | 137 | /* P1[18] = USB_UP_LED, 01 */ |
iva2k | 0:1802fb31b938 | 138 | /* P1[19] = /USB_PPWR, 10 */ |
iva2k | 0:1802fb31b938 | 139 | /* P1[22] = USB_PWRD, 10 */ |
iva2k | 0:1802fb31b938 | 140 | /* P1[27] = /USB_OVRCR, 10 */ |
iva2k | 0:1802fb31b938 | 141 | #if 0 |
iva2k | 0:1802fb31b938 | 142 | LPC_PINCON->PINSEL3 &= ~((3<<4) | (3<<6) | (3<<12) | (3<<22)); |
iva2k | 0:1802fb31b938 | 143 | LPC_PINCON->PINSEL3 |= ((1<<4)|(2<<6) | (2<<12) | (2<<22)); // 0x00802080 |
iva2k | 0:1802fb31b938 | 144 | PRINT_Log("5\r\n"); |
iva2k | 0:1802fb31b938 | 145 | #endif |
iva2k | 0:1802fb31b938 | 146 | |
iva2k | 0:1802fb31b938 | 147 | /* P0[29] = USB_D+, 01 */ |
iva2k | 0:1802fb31b938 | 148 | /* P0[30] = USB_D-, 01 */ |
iva2k | 0:1802fb31b938 | 149 | LPC_PINCON->PINSEL1 &= ~((3<<26) | (3<<28)); |
iva2k | 0:1802fb31b938 | 150 | LPC_PINCON->PINSEL1 |= ((1<<26)|(1<<28)); // 0x14000000 |
iva2k | 0:1802fb31b938 | 151 | |
iva2k | 0:1802fb31b938 | 152 | PRINT_Log("Initializing Host Stack\r\n"); |
iva2k | 0:1802fb31b938 | 153 | |
iva2k | 0:1802fb31b938 | 154 | // For chip revision V01 and later |
iva2k | 0:1802fb31b938 | 155 | // HostBaseAddr = 0x20080000; |
iva2k | 0:1802fb31b938 | 156 | #ifdef TARGET_LPC1768 |
iva2k | 0:1802fb31b938 | 157 | // mbed's "USB RAM" |
iva2k | 0:1802fb31b938 | 158 | HostBaseAddr = 0x2007C000; |
iva2k | 0:1802fb31b938 | 159 | #else |
iva2k | 0:1802fb31b938 | 160 | // USB RAM |
iva2k | 0:1802fb31b938 | 161 | HostBaseAddr = 0x7FD00000; |
iva2k | 0:1802fb31b938 | 162 | #endif |
iva2k | 0:1802fb31b938 | 163 | |
iva2k | 0:1802fb31b938 | 164 | Hcca = (volatile HCCA *)(HostBaseAddr+0x000); |
iva2k | 0:1802fb31b938 | 165 | TDHead = (volatile HCTD *)(HostBaseAddr+0x100); |
iva2k | 0:1802fb31b938 | 166 | TDTail = (volatile HCTD *)(HostBaseAddr+0x110); |
iva2k | 0:1802fb31b938 | 167 | EDCtrl = (volatile HCED *)(HostBaseAddr+0x120); |
iva2k | 0:1802fb31b938 | 168 | EDBulkIn = (volatile HCED *)(HostBaseAddr+0x130); |
iva2k | 0:1802fb31b938 | 169 | EDBulkOut = (volatile HCED *)(HostBaseAddr+0x140); |
iva2k | 0:1802fb31b938 | 170 | TDBuffer = (volatile USB_INT08U *)(HostBaseAddr+0x150); |
iva2k | 0:1802fb31b938 | 171 | FATBuffer = (volatile USB_INT08U *)(HostBaseAddr+0x1D0); |
iva2k | 0:1802fb31b938 | 172 | UserBuffer = (volatile USB_INT08U *)(HostBaseAddr+0x1000); |
iva2k | 0:1802fb31b938 | 173 | |
iva2k | 0:1802fb31b938 | 174 | /* Initialize all the TDs, EDs and HCCA to 0 */ |
iva2k | 0:1802fb31b938 | 175 | PRINT_Log("6\r\n"); |
iva2k | 0:1802fb31b938 | 176 | Host_EDInit(EDCtrl); |
iva2k | 0:1802fb31b938 | 177 | PRINT_Log("7\r\n"); |
iva2k | 0:1802fb31b938 | 178 | Host_EDInit(EDBulkIn); |
iva2k | 0:1802fb31b938 | 179 | PRINT_Log("8\r\n"); |
iva2k | 0:1802fb31b938 | 180 | Host_EDInit(EDBulkOut); |
iva2k | 0:1802fb31b938 | 181 | PRINT_Log("9\r\n"); |
iva2k | 0:1802fb31b938 | 182 | Host_TDInit(TDHead); |
iva2k | 0:1802fb31b938 | 183 | PRINT_Log("10\r\n"); |
iva2k | 0:1802fb31b938 | 184 | Host_TDInit(TDTail); |
iva2k | 0:1802fb31b938 | 185 | PRINT_Log("11\r\n"); |
iva2k | 0:1802fb31b938 | 186 | Host_HCCAInit(Hcca); |
iva2k | 0:1802fb31b938 | 187 | PRINT_Log("12\r\n"); |
iva2k | 0:1802fb31b938 | 188 | |
iva2k | 0:1802fb31b938 | 189 | |
iva2k | 0:1802fb31b938 | 190 | Host_DelayMS(50); /* Wait 50 ms before apply reset */ |
iva2k | 0:1802fb31b938 | 191 | LPC_USB->HcControl = 0; /* HARDWARE RESET */ |
iva2k | 0:1802fb31b938 | 192 | LPC_USB->HcControlHeadED = 0; /* Initialize Control list head to Zero */ |
iva2k | 0:1802fb31b938 | 193 | LPC_USB->HcBulkHeadED = 0; /* Initialize Bulk list head to Zero */ |
iva2k | 0:1802fb31b938 | 194 | |
iva2k | 0:1802fb31b938 | 195 | /* SOFTWARE RESET */ |
iva2k | 0:1802fb31b938 | 196 | LPC_USB->HcCommandStatus = OR_CMD_STATUS_HCR; |
iva2k | 0:1802fb31b938 | 197 | LPC_USB->HcFmInterval = DEFAULT_FMINTERVAL; /* Write Fm Interval and Largest Data Packet Counter */ |
iva2k | 0:1802fb31b938 | 198 | |
iva2k | 0:1802fb31b938 | 199 | /* Put HC in operational state */ |
iva2k | 0:1802fb31b938 | 200 | LPC_USB->HcControl = (LPC_USB->HcControl & (~OR_CONTROL_HCFS)) | OR_CONTROL_HC_OPER; |
iva2k | 0:1802fb31b938 | 201 | LPC_USB->HcRhStatus = OR_RH_STATUS_LPSC; /* Set Global Power */ |
iva2k | 0:1802fb31b938 | 202 | |
iva2k | 0:1802fb31b938 | 203 | LPC_USB->HcHCCA = (USB_INT32U)Hcca; |
iva2k | 0:1802fb31b938 | 204 | LPC_USB->HcInterruptStatus |= LPC_USB->HcInterruptStatus; /* Clear Interrrupt Status */ |
iva2k | 0:1802fb31b938 | 205 | |
iva2k | 0:1802fb31b938 | 206 | |
iva2k | 0:1802fb31b938 | 207 | LPC_USB->HcInterruptEnable = OR_INTR_ENABLE_MIE | |
iva2k | 0:1802fb31b938 | 208 | OR_INTR_ENABLE_WDH | |
iva2k | 0:1802fb31b938 | 209 | OR_INTR_ENABLE_RHSC; |
iva2k | 0:1802fb31b938 | 210 | |
iva2k | 0:1802fb31b938 | 211 | PRINT_Log("15\r\n"); |
iva2k | 0:1802fb31b938 | 212 | |
iva2k | 0:1802fb31b938 | 213 | |
iva2k | 0:1802fb31b938 | 214 | #ifdef TARGET_LPC2368 |
iva2k | 0:1802fb31b938 | 215 | NVIC->IntSelect &= ~(1 << USB_IRQn); /* Configure the ISR handler as IRQ */ |
iva2k | 0:1802fb31b938 | 216 | /* Set the vector address */ |
iva2k | 0:1802fb31b938 | 217 | NVIC_SetVector(USB_IRQn, (USB_INT32U)USB_IRQHandler); |
iva2k | 0:1802fb31b938 | 218 | #endif |
iva2k | 0:1802fb31b938 | 219 | NVIC_SetPriority(USB_IRQn, 0); /* highest priority */ |
iva2k | 0:1802fb31b938 | 220 | /* Enable the USB Interrupt */ |
iva2k | 0:1802fb31b938 | 221 | NVIC_EnableIRQ(USB_IRQn); /* enable USB interrupt */ |
iva2k | 0:1802fb31b938 | 222 | // NVIC_SetPriority (USB_IRQn, 0); /* highest priority */ |
iva2k | 0:1802fb31b938 | 223 | PRINT_Log("Host Initialized\r\n"); |
iva2k | 0:1802fb31b938 | 224 | } |
iva2k | 0:1802fb31b938 | 225 | |
iva2k | 0:1802fb31b938 | 226 | /* |
iva2k | 0:1802fb31b938 | 227 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 228 | * INTERRUPT SERVICE ROUTINE |
iva2k | 0:1802fb31b938 | 229 | * |
iva2k | 0:1802fb31b938 | 230 | * Description: This function services the interrupt caused by host controller |
iva2k | 0:1802fb31b938 | 231 | * |
iva2k | 0:1802fb31b938 | 232 | * Arguments : None |
iva2k | 0:1802fb31b938 | 233 | * |
iva2k | 0:1802fb31b938 | 234 | * Returns : None |
iva2k | 0:1802fb31b938 | 235 | * |
iva2k | 0:1802fb31b938 | 236 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 237 | */ |
iva2k | 0:1802fb31b938 | 238 | |
iva2k | 0:1802fb31b938 | 239 | void USB_IRQHandler (void) __irq |
iva2k | 0:1802fb31b938 | 240 | { |
iva2k | 0:1802fb31b938 | 241 | USB_INT32U int_status; |
iva2k | 0:1802fb31b938 | 242 | USB_INT32U ie_status; |
iva2k | 0:1802fb31b938 | 243 | |
iva2k | 0:1802fb31b938 | 244 | int_status = LPC_USB->HcInterruptStatus; /* Read Interrupt Status */ |
iva2k | 0:1802fb31b938 | 245 | ie_status = LPC_USB->HcInterruptEnable; /* Read Interrupt enable status */ |
iva2k | 0:1802fb31b938 | 246 | |
iva2k | 0:1802fb31b938 | 247 | //PRINT_Log("In USB_IRQHandler().\r\n"); |
iva2k | 0:1802fb31b938 | 248 | if (!(int_status & ie_status)) { |
iva2k | 0:1802fb31b938 | 249 | return; |
iva2k | 0:1802fb31b938 | 250 | } else { |
iva2k | 0:1802fb31b938 | 251 | |
iva2k | 0:1802fb31b938 | 252 | int_status = int_status & ie_status; |
iva2k | 0:1802fb31b938 | 253 | if (int_status & OR_INTR_STATUS_RHSC) { /* Root hub status change interrupt */ |
iva2k | 0:1802fb31b938 | 254 | if (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_CSC) { |
iva2k | 0:1802fb31b938 | 255 | if (LPC_USB->HcRhStatus & OR_RH_STATUS_DRWE) { |
iva2k | 0:1802fb31b938 | 256 | /* |
iva2k | 0:1802fb31b938 | 257 | * When DRWE is on, Connect Status Change |
iva2k | 0:1802fb31b938 | 258 | * means a remote wakeup event. |
iva2k | 0:1802fb31b938 | 259 | */ |
iva2k | 0:1802fb31b938 | 260 | HOST_RhscIntr = 1;// JUST SOMETHING FOR A BREAKPOINT |
iva2k | 0:1802fb31b938 | 261 | } |
iva2k | 0:1802fb31b938 | 262 | else { |
iva2k | 0:1802fb31b938 | 263 | /* |
iva2k | 0:1802fb31b938 | 264 | * When DRWE is off, Connect Status Change |
iva2k | 0:1802fb31b938 | 265 | * is NOT a remote wakeup event |
iva2k | 0:1802fb31b938 | 266 | */ |
iva2k | 0:1802fb31b938 | 267 | if (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_CCS) { |
iva2k | 0:1802fb31b938 | 268 | if (!gUSBConnected) { |
iva2k | 0:1802fb31b938 | 269 | HOST_TDControlStatus = 0; |
iva2k | 0:1802fb31b938 | 270 | HOST_WdhIntr = 0; |
iva2k | 0:1802fb31b938 | 271 | HOST_RhscIntr = 1; |
iva2k | 0:1802fb31b938 | 272 | gUSBConnected = 1; |
iva2k | 0:1802fb31b938 | 273 | } |
iva2k | 0:1802fb31b938 | 274 | else |
iva2k | 0:1802fb31b938 | 275 | PRINT_Log("Spurious status change (connected)?\r\n"); |
iva2k | 0:1802fb31b938 | 276 | } else { |
iva2k | 0:1802fb31b938 | 277 | if (gUSBConnected) { |
iva2k | 0:1802fb31b938 | 278 | LPC_USB->HcInterruptEnable = 0; // why do we get multiple disc. rupts??? |
iva2k | 0:1802fb31b938 | 279 | HOST_RhscIntr = 0; |
iva2k | 0:1802fb31b938 | 280 | gUSBConnected = 0; |
iva2k | 0:1802fb31b938 | 281 | } |
iva2k | 0:1802fb31b938 | 282 | else |
iva2k | 0:1802fb31b938 | 283 | PRINT_Log("Spurious status change (disconnected)?\r\n"); |
iva2k | 0:1802fb31b938 | 284 | } |
iva2k | 0:1802fb31b938 | 285 | } |
iva2k | 0:1802fb31b938 | 286 | LPC_USB->HcRhPortStatus1 = OR_RH_PORT_CSC; |
iva2k | 0:1802fb31b938 | 287 | } |
iva2k | 0:1802fb31b938 | 288 | if (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_PRSC) { |
iva2k | 0:1802fb31b938 | 289 | LPC_USB->HcRhPortStatus1 = OR_RH_PORT_PRSC; |
iva2k | 0:1802fb31b938 | 290 | } |
iva2k | 0:1802fb31b938 | 291 | } |
iva2k | 0:1802fb31b938 | 292 | if (int_status & OR_INTR_STATUS_WDH) { /* Writeback Done Head interrupt */ |
iva2k | 0:1802fb31b938 | 293 | HOST_WdhIntr = 1; |
iva2k | 0:1802fb31b938 | 294 | HOST_TDControlStatus = (TDHead->Control >> 28) & 0xf; |
iva2k | 0:1802fb31b938 | 295 | } |
iva2k | 0:1802fb31b938 | 296 | LPC_USB->HcInterruptStatus = int_status; /* Clear interrupt status register */ |
iva2k | 0:1802fb31b938 | 297 | } |
iva2k | 0:1802fb31b938 | 298 | #ifdef TARGET_LPC2368 |
iva2k | 0:1802fb31b938 | 299 | NVIC->Address = 0; |
iva2k | 0:1802fb31b938 | 300 | #endif |
iva2k | 0:1802fb31b938 | 301 | return; |
iva2k | 0:1802fb31b938 | 302 | } |
iva2k | 0:1802fb31b938 | 303 | |
iva2k | 0:1802fb31b938 | 304 | /* |
iva2k | 0:1802fb31b938 | 305 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 306 | * PROCESS TRANSFER DESCRIPTOR |
iva2k | 0:1802fb31b938 | 307 | * |
iva2k | 0:1802fb31b938 | 308 | * Description: This function processes the transfer descriptor |
iva2k | 0:1802fb31b938 | 309 | * |
iva2k | 0:1802fb31b938 | 310 | * Arguments : ed Endpoint descriptor that contains this transfer descriptor |
iva2k | 0:1802fb31b938 | 311 | * token SETUP, IN, OUT |
iva2k | 0:1802fb31b938 | 312 | * buffer Current Buffer Pointer of the transfer descriptor |
iva2k | 0:1802fb31b938 | 313 | * buffer_len Length of the buffer |
iva2k | 0:1802fb31b938 | 314 | * |
iva2k | 0:1802fb31b938 | 315 | * Returns : OK if TD submission is successful |
iva2k | 0:1802fb31b938 | 316 | * ERROR if TD submission fails |
iva2k | 0:1802fb31b938 | 317 | * |
iva2k | 0:1802fb31b938 | 318 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 319 | */ |
iva2k | 0:1802fb31b938 | 320 | |
iva2k | 0:1802fb31b938 | 321 | USB_INT32S Host_ProcessTD (volatile HCED *ed, |
iva2k | 0:1802fb31b938 | 322 | volatile USB_INT32U token, |
iva2k | 0:1802fb31b938 | 323 | volatile USB_INT08U *buffer, |
iva2k | 0:1802fb31b938 | 324 | USB_INT32U buffer_len) |
iva2k | 0:1802fb31b938 | 325 | { |
iva2k | 0:1802fb31b938 | 326 | volatile USB_INT32U td_toggle; |
iva2k | 0:1802fb31b938 | 327 | |
iva2k | 0:1802fb31b938 | 328 | |
iva2k | 0:1802fb31b938 | 329 | if (ed == EDCtrl) { |
iva2k | 0:1802fb31b938 | 330 | if (token == TD_SETUP) { |
iva2k | 0:1802fb31b938 | 331 | td_toggle = TD_TOGGLE_0; |
iva2k | 0:1802fb31b938 | 332 | } else { |
iva2k | 0:1802fb31b938 | 333 | td_toggle = TD_TOGGLE_1; |
iva2k | 0:1802fb31b938 | 334 | } |
iva2k | 0:1802fb31b938 | 335 | } else { |
iva2k | 0:1802fb31b938 | 336 | td_toggle = 0; |
iva2k | 0:1802fb31b938 | 337 | } |
iva2k | 0:1802fb31b938 | 338 | TDHead->Control = (TD_ROUNDING | |
iva2k | 0:1802fb31b938 | 339 | token | |
iva2k | 0:1802fb31b938 | 340 | TD_DELAY_INT(0) | |
iva2k | 0:1802fb31b938 | 341 | td_toggle | |
iva2k | 0:1802fb31b938 | 342 | TD_CC); |
iva2k | 0:1802fb31b938 | 343 | TDTail->Control = 0; |
iva2k | 0:1802fb31b938 | 344 | TDHead->CurrBufPtr = (USB_INT32U) buffer; |
iva2k | 0:1802fb31b938 | 345 | TDTail->CurrBufPtr = 0; |
iva2k | 0:1802fb31b938 | 346 | TDHead->Next = (USB_INT32U) TDTail; |
iva2k | 0:1802fb31b938 | 347 | TDTail->Next = 0; |
iva2k | 0:1802fb31b938 | 348 | TDHead->BufEnd = (USB_INT32U)(buffer + (buffer_len - 1)); |
iva2k | 0:1802fb31b938 | 349 | TDTail->BufEnd = 0; |
iva2k | 0:1802fb31b938 | 350 | |
iva2k | 0:1802fb31b938 | 351 | ed->HeadTd = (USB_INT32U)TDHead | ((ed->HeadTd) & 0x00000002); |
iva2k | 0:1802fb31b938 | 352 | ed->TailTd = (USB_INT32U)TDTail; |
iva2k | 0:1802fb31b938 | 353 | ed->Next = 0; |
iva2k | 0:1802fb31b938 | 354 | |
iva2k | 0:1802fb31b938 | 355 | if (ed == EDCtrl) { |
iva2k | 0:1802fb31b938 | 356 | LPC_USB->HcControlHeadED = (USB_INT32U)ed; |
iva2k | 0:1802fb31b938 | 357 | LPC_USB->HcCommandStatus = LPC_USB->HcCommandStatus | OR_CMD_STATUS_CLF; |
iva2k | 0:1802fb31b938 | 358 | LPC_USB->HcControl = LPC_USB->HcControl | OR_CONTROL_CLE; |
iva2k | 0:1802fb31b938 | 359 | } else { |
iva2k | 0:1802fb31b938 | 360 | LPC_USB->HcBulkHeadED = (USB_INT32U)ed; |
iva2k | 0:1802fb31b938 | 361 | LPC_USB->HcCommandStatus = LPC_USB->HcCommandStatus | OR_CMD_STATUS_BLF; |
iva2k | 0:1802fb31b938 | 362 | LPC_USB->HcControl = LPC_USB->HcControl | OR_CONTROL_BLE; |
iva2k | 0:1802fb31b938 | 363 | } |
iva2k | 0:1802fb31b938 | 364 | |
iva2k | 0:1802fb31b938 | 365 | Host_WDHWait(); |
iva2k | 0:1802fb31b938 | 366 | |
iva2k | 0:1802fb31b938 | 367 | // if (!(TDHead->Control & 0xF0000000)) { |
iva2k | 0:1802fb31b938 | 368 | if (!HOST_TDControlStatus) { |
iva2k | 0:1802fb31b938 | 369 | return (OK); |
iva2k | 0:1802fb31b938 | 370 | } else { |
iva2k | 0:1802fb31b938 | 371 | return (ERR_TD_FAIL); |
iva2k | 0:1802fb31b938 | 372 | } |
iva2k | 0:1802fb31b938 | 373 | } |
iva2k | 0:1802fb31b938 | 374 | |
iva2k | 0:1802fb31b938 | 375 | /* |
iva2k | 0:1802fb31b938 | 376 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 377 | * ENUMERATE THE DEVICE |
iva2k | 0:1802fb31b938 | 378 | * |
iva2k | 0:1802fb31b938 | 379 | * Description: This function is used to enumerate the device connected |
iva2k | 0:1802fb31b938 | 380 | * |
iva2k | 0:1802fb31b938 | 381 | * Arguments : None |
iva2k | 0:1802fb31b938 | 382 | * |
iva2k | 0:1802fb31b938 | 383 | * Returns : None |
iva2k | 0:1802fb31b938 | 384 | * |
iva2k | 0:1802fb31b938 | 385 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 386 | */ |
iva2k | 0:1802fb31b938 | 387 | |
iva2k | 0:1802fb31b938 | 388 | USB_INT32S Host_EnumDev (void) |
iva2k | 0:1802fb31b938 | 389 | { |
iva2k | 0:1802fb31b938 | 390 | USB_INT32S rc; |
iva2k | 0:1802fb31b938 | 391 | |
iva2k | 0:1802fb31b938 | 392 | PRINT_Log("Connect a Mass Storage device:\r\n"); |
iva2k | 0:1802fb31b938 | 393 | while (!HOST_RhscIntr); |
iva2k | 0:1802fb31b938 | 394 | Host_DelayMS(100); /* USB 2.0 spec says atleast 50ms delay beore port reset */ |
iva2k | 0:1802fb31b938 | 395 | LPC_USB->HcRhPortStatus1 = OR_RH_PORT_PRS; // Initiate port reset |
iva2k | 0:1802fb31b938 | 396 | while (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_PRS) |
iva2k | 0:1802fb31b938 | 397 | ; // Wait for port reset to complete... |
iva2k | 0:1802fb31b938 | 398 | LPC_USB->HcRhPortStatus1 = OR_RH_PORT_PRSC; // ...and clear port reset signal |
iva2k | 0:1802fb31b938 | 399 | Host_DelayMS(200); /* Wait for 100 MS after port reset */ |
iva2k | 0:1802fb31b938 | 400 | |
iva2k | 0:1802fb31b938 | 401 | EDCtrl->Control = 8 << 16; /* Put max pkt size = 8 */ |
iva2k | 0:1802fb31b938 | 402 | /* Read first 8 bytes of device desc */ |
iva2k | 0:1802fb31b938 | 403 | rc = HOST_GET_DESCRIPTOR(USB_DESCRIPTOR_TYPE_DEVICE, 0, TDBuffer, 8); |
iva2k | 0:1802fb31b938 | 404 | if (rc != OK) { |
iva2k | 0:1802fb31b938 | 405 | PRINT_Err(rc); |
iva2k | 0:1802fb31b938 | 406 | return (rc); |
iva2k | 0:1802fb31b938 | 407 | } |
iva2k | 0:1802fb31b938 | 408 | EDCtrl->Control = TDBuffer[7] << 16; /* Get max pkt size of endpoint 0 */ |
iva2k | 0:1802fb31b938 | 409 | rc = HOST_SET_ADDRESS(1); /* Set the device address to 1 */ |
iva2k | 0:1802fb31b938 | 410 | if (rc != OK) { |
iva2k | 0:1802fb31b938 | 411 | PRINT_Err(rc); |
iva2k | 0:1802fb31b938 | 412 | return (rc); |
iva2k | 0:1802fb31b938 | 413 | } |
iva2k | 0:1802fb31b938 | 414 | Host_DelayMS(2); |
iva2k | 0:1802fb31b938 | 415 | EDCtrl->Control = (EDCtrl->Control) | 1; /* Modify control pipe with address 1 */ |
iva2k | 0:1802fb31b938 | 416 | /* Get the configuration descriptor */ |
iva2k | 0:1802fb31b938 | 417 | rc = HOST_GET_DESCRIPTOR(USB_DESCRIPTOR_TYPE_CONFIGURATION, 0, TDBuffer, 9); |
iva2k | 0:1802fb31b938 | 418 | if (rc != OK) { |
iva2k | 0:1802fb31b938 | 419 | PRINT_Err(rc); |
iva2k | 0:1802fb31b938 | 420 | return (rc); |
iva2k | 0:1802fb31b938 | 421 | } |
iva2k | 0:1802fb31b938 | 422 | /* Get the first configuration data */ |
iva2k | 0:1802fb31b938 | 423 | rc = HOST_GET_DESCRIPTOR(USB_DESCRIPTOR_TYPE_CONFIGURATION, 0, TDBuffer, ReadLE16U(&TDBuffer[2])); |
iva2k | 0:1802fb31b938 | 424 | if (rc != OK) { |
iva2k | 0:1802fb31b938 | 425 | PRINT_Err(rc); |
iva2k | 0:1802fb31b938 | 426 | return (rc); |
iva2k | 0:1802fb31b938 | 427 | } |
iva2k | 0:1802fb31b938 | 428 | rc = MS_ParseConfiguration(); /* Parse the configuration */ |
iva2k | 0:1802fb31b938 | 429 | if (rc != OK) { |
iva2k | 0:1802fb31b938 | 430 | PRINT_Err(rc); |
iva2k | 0:1802fb31b938 | 431 | return (rc); |
iva2k | 0:1802fb31b938 | 432 | } |
iva2k | 0:1802fb31b938 | 433 | rc = USBH_SET_CONFIGURATION(1); /* Select device configuration 1 */ |
iva2k | 0:1802fb31b938 | 434 | if (rc != OK) { |
iva2k | 0:1802fb31b938 | 435 | PRINT_Err(rc); |
iva2k | 0:1802fb31b938 | 436 | } |
iva2k | 0:1802fb31b938 | 437 | Host_DelayMS(100); /* Some devices may require this delay */ |
iva2k | 0:1802fb31b938 | 438 | return (rc); |
iva2k | 0:1802fb31b938 | 439 | } |
iva2k | 0:1802fb31b938 | 440 | |
iva2k | 0:1802fb31b938 | 441 | /* |
iva2k | 0:1802fb31b938 | 442 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 443 | * RECEIVE THE CONTROL INFORMATION |
iva2k | 0:1802fb31b938 | 444 | * |
iva2k | 0:1802fb31b938 | 445 | * Description: This function is used to receive the control information |
iva2k | 0:1802fb31b938 | 446 | * |
iva2k | 0:1802fb31b938 | 447 | * Arguments : bm_request_type |
iva2k | 0:1802fb31b938 | 448 | * b_request |
iva2k | 0:1802fb31b938 | 449 | * w_value |
iva2k | 0:1802fb31b938 | 450 | * w_index |
iva2k | 0:1802fb31b938 | 451 | * w_length |
iva2k | 0:1802fb31b938 | 452 | * buffer |
iva2k | 0:1802fb31b938 | 453 | * |
iva2k | 0:1802fb31b938 | 454 | * Returns : OK if Success |
iva2k | 0:1802fb31b938 | 455 | * ERROR if Failed |
iva2k | 0:1802fb31b938 | 456 | * |
iva2k | 0:1802fb31b938 | 457 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 458 | */ |
iva2k | 0:1802fb31b938 | 459 | |
iva2k | 0:1802fb31b938 | 460 | USB_INT32S Host_CtrlRecv ( USB_INT08U bm_request_type, |
iva2k | 0:1802fb31b938 | 461 | USB_INT08U b_request, |
iva2k | 0:1802fb31b938 | 462 | USB_INT16U w_value, |
iva2k | 0:1802fb31b938 | 463 | USB_INT16U w_index, |
iva2k | 0:1802fb31b938 | 464 | USB_INT16U w_length, |
iva2k | 0:1802fb31b938 | 465 | volatile USB_INT08U *buffer) |
iva2k | 0:1802fb31b938 | 466 | { |
iva2k | 0:1802fb31b938 | 467 | USB_INT32S rc; |
iva2k | 0:1802fb31b938 | 468 | |
iva2k | 0:1802fb31b938 | 469 | |
iva2k | 0:1802fb31b938 | 470 | Host_FillSetup(bm_request_type, b_request, w_value, w_index, w_length); |
iva2k | 0:1802fb31b938 | 471 | rc = Host_ProcessTD(EDCtrl, TD_SETUP, TDBuffer, 8); |
iva2k | 0:1802fb31b938 | 472 | if (rc == OK) { |
iva2k | 0:1802fb31b938 | 473 | if (w_length) { |
iva2k | 0:1802fb31b938 | 474 | rc = Host_ProcessTD(EDCtrl, TD_IN, TDBuffer, w_length); |
iva2k | 0:1802fb31b938 | 475 | } |
iva2k | 0:1802fb31b938 | 476 | if (rc == OK) { |
iva2k | 0:1802fb31b938 | 477 | rc = Host_ProcessTD(EDCtrl, TD_OUT, NULL, 0); |
iva2k | 0:1802fb31b938 | 478 | } |
iva2k | 0:1802fb31b938 | 479 | } |
iva2k | 0:1802fb31b938 | 480 | return (rc); |
iva2k | 0:1802fb31b938 | 481 | } |
iva2k | 0:1802fb31b938 | 482 | |
iva2k | 0:1802fb31b938 | 483 | /* |
iva2k | 0:1802fb31b938 | 484 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 485 | * SEND THE CONTROL INFORMATION |
iva2k | 0:1802fb31b938 | 486 | * |
iva2k | 0:1802fb31b938 | 487 | * Description: This function is used to send the control information |
iva2k | 0:1802fb31b938 | 488 | * |
iva2k | 0:1802fb31b938 | 489 | * Arguments : None |
iva2k | 0:1802fb31b938 | 490 | * |
iva2k | 0:1802fb31b938 | 491 | * Returns : OK if Success |
iva2k | 0:1802fb31b938 | 492 | * ERR_INVALID_BOOTSIG if Failed |
iva2k | 0:1802fb31b938 | 493 | * |
iva2k | 0:1802fb31b938 | 494 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 495 | */ |
iva2k | 0:1802fb31b938 | 496 | |
iva2k | 0:1802fb31b938 | 497 | USB_INT32S Host_CtrlSend ( USB_INT08U bm_request_type, |
iva2k | 0:1802fb31b938 | 498 | USB_INT08U b_request, |
iva2k | 0:1802fb31b938 | 499 | USB_INT16U w_value, |
iva2k | 0:1802fb31b938 | 500 | USB_INT16U w_index, |
iva2k | 0:1802fb31b938 | 501 | USB_INT16U w_length, |
iva2k | 0:1802fb31b938 | 502 | volatile USB_INT08U *buffer) |
iva2k | 0:1802fb31b938 | 503 | { |
iva2k | 0:1802fb31b938 | 504 | USB_INT32S rc; |
iva2k | 0:1802fb31b938 | 505 | |
iva2k | 0:1802fb31b938 | 506 | |
iva2k | 0:1802fb31b938 | 507 | Host_FillSetup(bm_request_type, b_request, w_value, w_index, w_length); |
iva2k | 0:1802fb31b938 | 508 | |
iva2k | 0:1802fb31b938 | 509 | rc = Host_ProcessTD(EDCtrl, TD_SETUP, TDBuffer, 8); |
iva2k | 0:1802fb31b938 | 510 | if (rc == OK) { |
iva2k | 0:1802fb31b938 | 511 | if (w_length) { |
iva2k | 0:1802fb31b938 | 512 | rc = Host_ProcessTD(EDCtrl, TD_OUT, TDBuffer, w_length); |
iva2k | 0:1802fb31b938 | 513 | } |
iva2k | 0:1802fb31b938 | 514 | if (rc == OK) { |
iva2k | 0:1802fb31b938 | 515 | rc = Host_ProcessTD(EDCtrl, TD_IN, NULL, 0); |
iva2k | 0:1802fb31b938 | 516 | } |
iva2k | 0:1802fb31b938 | 517 | } |
iva2k | 0:1802fb31b938 | 518 | return (rc); |
iva2k | 0:1802fb31b938 | 519 | } |
iva2k | 0:1802fb31b938 | 520 | |
iva2k | 0:1802fb31b938 | 521 | /* |
iva2k | 0:1802fb31b938 | 522 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 523 | * FILL SETUP PACKET |
iva2k | 0:1802fb31b938 | 524 | * |
iva2k | 0:1802fb31b938 | 525 | * Description: This function is used to fill the setup packet |
iva2k | 0:1802fb31b938 | 526 | * |
iva2k | 0:1802fb31b938 | 527 | * Arguments : None |
iva2k | 0:1802fb31b938 | 528 | * |
iva2k | 0:1802fb31b938 | 529 | * Returns : OK if Success |
iva2k | 0:1802fb31b938 | 530 | * ERR_INVALID_BOOTSIG if Failed |
iva2k | 0:1802fb31b938 | 531 | * |
iva2k | 0:1802fb31b938 | 532 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 533 | */ |
iva2k | 0:1802fb31b938 | 534 | |
iva2k | 0:1802fb31b938 | 535 | void Host_FillSetup (USB_INT08U bm_request_type, |
iva2k | 0:1802fb31b938 | 536 | USB_INT08U b_request, |
iva2k | 0:1802fb31b938 | 537 | USB_INT16U w_value, |
iva2k | 0:1802fb31b938 | 538 | USB_INT16U w_index, |
iva2k | 0:1802fb31b938 | 539 | USB_INT16U w_length) |
iva2k | 0:1802fb31b938 | 540 | { |
iva2k | 0:1802fb31b938 | 541 | int i; |
iva2k | 0:1802fb31b938 | 542 | for (i=0;i<w_length;i++) |
iva2k | 0:1802fb31b938 | 543 | TDBuffer[i] = 0; |
iva2k | 0:1802fb31b938 | 544 | |
iva2k | 0:1802fb31b938 | 545 | TDBuffer[0] = bm_request_type; |
iva2k | 0:1802fb31b938 | 546 | TDBuffer[1] = b_request; |
iva2k | 0:1802fb31b938 | 547 | WriteLE16U(&TDBuffer[2], w_value); |
iva2k | 0:1802fb31b938 | 548 | WriteLE16U(&TDBuffer[4], w_index); |
iva2k | 0:1802fb31b938 | 549 | WriteLE16U(&TDBuffer[6], w_length); |
iva2k | 0:1802fb31b938 | 550 | } |
iva2k | 0:1802fb31b938 | 551 | |
iva2k | 0:1802fb31b938 | 552 | |
iva2k | 0:1802fb31b938 | 553 | |
iva2k | 0:1802fb31b938 | 554 | /* |
iva2k | 0:1802fb31b938 | 555 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 556 | * INITIALIZE THE TRANSFER DESCRIPTOR |
iva2k | 0:1802fb31b938 | 557 | * |
iva2k | 0:1802fb31b938 | 558 | * Description: This function initializes transfer descriptor |
iva2k | 0:1802fb31b938 | 559 | * |
iva2k | 0:1802fb31b938 | 560 | * Arguments : Pointer to TD structure |
iva2k | 0:1802fb31b938 | 561 | * |
iva2k | 0:1802fb31b938 | 562 | * Returns : None |
iva2k | 0:1802fb31b938 | 563 | * |
iva2k | 0:1802fb31b938 | 564 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 565 | */ |
iva2k | 0:1802fb31b938 | 566 | |
iva2k | 0:1802fb31b938 | 567 | void Host_TDInit (volatile HCTD *td) |
iva2k | 0:1802fb31b938 | 568 | { |
iva2k | 0:1802fb31b938 | 569 | |
iva2k | 0:1802fb31b938 | 570 | td->Control = 0; |
iva2k | 0:1802fb31b938 | 571 | td->CurrBufPtr = 0; |
iva2k | 0:1802fb31b938 | 572 | td->Next = 0; |
iva2k | 0:1802fb31b938 | 573 | td->BufEnd = 0; |
iva2k | 0:1802fb31b938 | 574 | } |
iva2k | 0:1802fb31b938 | 575 | |
iva2k | 0:1802fb31b938 | 576 | /* |
iva2k | 0:1802fb31b938 | 577 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 578 | * INITIALIZE THE ENDPOINT DESCRIPTOR |
iva2k | 0:1802fb31b938 | 579 | * |
iva2k | 0:1802fb31b938 | 580 | * Description: This function initializes endpoint descriptor |
iva2k | 0:1802fb31b938 | 581 | * |
iva2k | 0:1802fb31b938 | 582 | * Arguments : Pointer to ED strcuture |
iva2k | 0:1802fb31b938 | 583 | * |
iva2k | 0:1802fb31b938 | 584 | * Returns : None |
iva2k | 0:1802fb31b938 | 585 | * |
iva2k | 0:1802fb31b938 | 586 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 587 | */ |
iva2k | 0:1802fb31b938 | 588 | |
iva2k | 0:1802fb31b938 | 589 | void Host_EDInit (volatile HCED *ed) |
iva2k | 0:1802fb31b938 | 590 | { |
iva2k | 0:1802fb31b938 | 591 | |
iva2k | 0:1802fb31b938 | 592 | ed->Control = 0; |
iva2k | 0:1802fb31b938 | 593 | ed->TailTd = 0; |
iva2k | 0:1802fb31b938 | 594 | ed->HeadTd = 0; |
iva2k | 0:1802fb31b938 | 595 | ed->Next = 0; |
iva2k | 0:1802fb31b938 | 596 | } |
iva2k | 0:1802fb31b938 | 597 | |
iva2k | 0:1802fb31b938 | 598 | /* |
iva2k | 0:1802fb31b938 | 599 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 600 | * INITIALIZE HOST CONTROLLER COMMUNICATIONS AREA |
iva2k | 0:1802fb31b938 | 601 | * |
iva2k | 0:1802fb31b938 | 602 | * Description: This function initializes host controller communications area |
iva2k | 0:1802fb31b938 | 603 | * |
iva2k | 0:1802fb31b938 | 604 | * Arguments : Pointer to HCCA |
iva2k | 0:1802fb31b938 | 605 | * |
iva2k | 0:1802fb31b938 | 606 | * Returns : |
iva2k | 0:1802fb31b938 | 607 | * |
iva2k | 0:1802fb31b938 | 608 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 609 | */ |
iva2k | 0:1802fb31b938 | 610 | |
iva2k | 0:1802fb31b938 | 611 | void Host_HCCAInit (volatile HCCA *hcca) |
iva2k | 0:1802fb31b938 | 612 | { |
iva2k | 0:1802fb31b938 | 613 | USB_INT32U i; |
iva2k | 0:1802fb31b938 | 614 | |
iva2k | 0:1802fb31b938 | 615 | |
iva2k | 0:1802fb31b938 | 616 | for (i = 0; i < 32; i++) { |
iva2k | 0:1802fb31b938 | 617 | |
iva2k | 0:1802fb31b938 | 618 | hcca->IntTable[i] = 0; |
iva2k | 0:1802fb31b938 | 619 | hcca->FrameNumber = 0; |
iva2k | 0:1802fb31b938 | 620 | hcca->DoneHead = 0; |
iva2k | 0:1802fb31b938 | 621 | } |
iva2k | 0:1802fb31b938 | 622 | |
iva2k | 0:1802fb31b938 | 623 | } |
iva2k | 0:1802fb31b938 | 624 | |
iva2k | 0:1802fb31b938 | 625 | /* |
iva2k | 0:1802fb31b938 | 626 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 627 | * WAIT FOR WDH INTERRUPT |
iva2k | 0:1802fb31b938 | 628 | * |
iva2k | 0:1802fb31b938 | 629 | * Description: This function is infinite loop which breaks when ever a WDH interrupt rises |
iva2k | 0:1802fb31b938 | 630 | * |
iva2k | 0:1802fb31b938 | 631 | * Arguments : None |
iva2k | 0:1802fb31b938 | 632 | * |
iva2k | 0:1802fb31b938 | 633 | * Returns : None |
iva2k | 0:1802fb31b938 | 634 | * |
iva2k | 0:1802fb31b938 | 635 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 636 | */ |
iva2k | 0:1802fb31b938 | 637 | |
iva2k | 0:1802fb31b938 | 638 | void Host_WDHWait (void) |
iva2k | 0:1802fb31b938 | 639 | { |
iva2k | 0:1802fb31b938 | 640 | while (!HOST_WdhIntr) { |
iva2k | 0:1802fb31b938 | 641 | ; |
iva2k | 0:1802fb31b938 | 642 | } |
iva2k | 0:1802fb31b938 | 643 | HOST_WdhIntr = 0; |
iva2k | 0:1802fb31b938 | 644 | } |
iva2k | 0:1802fb31b938 | 645 | |
iva2k | 0:1802fb31b938 | 646 | /* |
iva2k | 0:1802fb31b938 | 647 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 648 | * READ LE 32U |
iva2k | 0:1802fb31b938 | 649 | * |
iva2k | 0:1802fb31b938 | 650 | * Description: This function is used to read an unsigned integer from a charecter buffer in the platform |
iva2k | 0:1802fb31b938 | 651 | * containing little endian processor |
iva2k | 0:1802fb31b938 | 652 | * |
iva2k | 0:1802fb31b938 | 653 | * Arguments : pmem Pointer to the charecter buffer |
iva2k | 0:1802fb31b938 | 654 | * |
iva2k | 0:1802fb31b938 | 655 | * Returns : val Unsigned integer |
iva2k | 0:1802fb31b938 | 656 | * |
iva2k | 0:1802fb31b938 | 657 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 658 | */ |
iva2k | 0:1802fb31b938 | 659 | |
iva2k | 0:1802fb31b938 | 660 | USB_INT32U ReadLE32U (volatile USB_INT08U *pmem) |
iva2k | 0:1802fb31b938 | 661 | { |
iva2k | 0:1802fb31b938 | 662 | USB_INT32U val; |
iva2k | 0:1802fb31b938 | 663 | |
iva2k | 0:1802fb31b938 | 664 | ((USB_INT08U *)&val)[0] = pmem[0]; |
iva2k | 0:1802fb31b938 | 665 | ((USB_INT08U *)&val)[1] = pmem[1]; |
iva2k | 0:1802fb31b938 | 666 | ((USB_INT08U *)&val)[2] = pmem[2]; |
iva2k | 0:1802fb31b938 | 667 | ((USB_INT08U *)&val)[3] = pmem[3]; |
iva2k | 0:1802fb31b938 | 668 | |
iva2k | 0:1802fb31b938 | 669 | return (val); |
iva2k | 0:1802fb31b938 | 670 | } |
iva2k | 0:1802fb31b938 | 671 | |
iva2k | 0:1802fb31b938 | 672 | /* |
iva2k | 0:1802fb31b938 | 673 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 674 | * WRITE LE 32U |
iva2k | 0:1802fb31b938 | 675 | * |
iva2k | 0:1802fb31b938 | 676 | * Description: This function is used to write an unsigned integer into a charecter buffer in the platform |
iva2k | 0:1802fb31b938 | 677 | * containing little endian processor. |
iva2k | 0:1802fb31b938 | 678 | * |
iva2k | 0:1802fb31b938 | 679 | * Arguments : pmem Pointer to the charecter buffer |
iva2k | 0:1802fb31b938 | 680 | * val Integer value to be placed in the charecter buffer |
iva2k | 0:1802fb31b938 | 681 | * |
iva2k | 0:1802fb31b938 | 682 | * Returns : None |
iva2k | 0:1802fb31b938 | 683 | * |
iva2k | 0:1802fb31b938 | 684 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 685 | */ |
iva2k | 0:1802fb31b938 | 686 | |
iva2k | 0:1802fb31b938 | 687 | void WriteLE32U (volatile USB_INT08U *pmem, |
iva2k | 0:1802fb31b938 | 688 | USB_INT32U val) |
iva2k | 0:1802fb31b938 | 689 | { |
iva2k | 0:1802fb31b938 | 690 | pmem[0] = ((USB_INT08U *)&val)[0]; |
iva2k | 0:1802fb31b938 | 691 | pmem[1] = ((USB_INT08U *)&val)[1]; |
iva2k | 0:1802fb31b938 | 692 | pmem[2] = ((USB_INT08U *)&val)[2]; |
iva2k | 0:1802fb31b938 | 693 | pmem[3] = ((USB_INT08U *)&val)[3]; |
iva2k | 0:1802fb31b938 | 694 | } |
iva2k | 0:1802fb31b938 | 695 | |
iva2k | 0:1802fb31b938 | 696 | /* |
iva2k | 0:1802fb31b938 | 697 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 698 | * READ LE 16U |
iva2k | 0:1802fb31b938 | 699 | * |
iva2k | 0:1802fb31b938 | 700 | * Description: This function is used to read an unsigned short integer from a charecter buffer in the platform |
iva2k | 0:1802fb31b938 | 701 | * containing little endian processor |
iva2k | 0:1802fb31b938 | 702 | * |
iva2k | 0:1802fb31b938 | 703 | * Arguments : pmem Pointer to the charecter buffer |
iva2k | 0:1802fb31b938 | 704 | * |
iva2k | 0:1802fb31b938 | 705 | * Returns : val Unsigned short integer |
iva2k | 0:1802fb31b938 | 706 | * |
iva2k | 0:1802fb31b938 | 707 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 708 | */ |
iva2k | 0:1802fb31b938 | 709 | |
iva2k | 0:1802fb31b938 | 710 | USB_INT16U ReadLE16U (volatile USB_INT08U *pmem) |
iva2k | 0:1802fb31b938 | 711 | { |
iva2k | 0:1802fb31b938 | 712 | USB_INT16U val; |
iva2k | 0:1802fb31b938 | 713 | |
iva2k | 0:1802fb31b938 | 714 | ((USB_INT08U *)&val)[0] = pmem[0]; |
iva2k | 0:1802fb31b938 | 715 | ((USB_INT08U *)&val)[1] = pmem[1]; |
iva2k | 0:1802fb31b938 | 716 | |
iva2k | 0:1802fb31b938 | 717 | |
iva2k | 0:1802fb31b938 | 718 | return (val); |
iva2k | 0:1802fb31b938 | 719 | } |
iva2k | 0:1802fb31b938 | 720 | |
iva2k | 0:1802fb31b938 | 721 | /* |
iva2k | 0:1802fb31b938 | 722 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 723 | * WRITE LE 16U |
iva2k | 0:1802fb31b938 | 724 | * |
iva2k | 0:1802fb31b938 | 725 | * Description: This function is used to write an unsigned short integer into a charecter buffer in the |
iva2k | 0:1802fb31b938 | 726 | * platform containing little endian processor |
iva2k | 0:1802fb31b938 | 727 | * |
iva2k | 0:1802fb31b938 | 728 | * Arguments : pmem Pointer to the charecter buffer |
iva2k | 0:1802fb31b938 | 729 | * val Value to be placed in the charecter buffer |
iva2k | 0:1802fb31b938 | 730 | * |
iva2k | 0:1802fb31b938 | 731 | * Returns : None |
iva2k | 0:1802fb31b938 | 732 | * |
iva2k | 0:1802fb31b938 | 733 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 734 | */ |
iva2k | 0:1802fb31b938 | 735 | |
iva2k | 0:1802fb31b938 | 736 | void WriteLE16U (volatile USB_INT08U *pmem, |
iva2k | 0:1802fb31b938 | 737 | USB_INT16U val) |
iva2k | 0:1802fb31b938 | 738 | { |
iva2k | 0:1802fb31b938 | 739 | pmem[0] = ((USB_INT08U *)&val)[0]; |
iva2k | 0:1802fb31b938 | 740 | pmem[1] = ((USB_INT08U *)&val)[1]; |
iva2k | 0:1802fb31b938 | 741 | } |
iva2k | 0:1802fb31b938 | 742 | |
iva2k | 0:1802fb31b938 | 743 | /* |
iva2k | 0:1802fb31b938 | 744 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 745 | * READ BE 32U |
iva2k | 0:1802fb31b938 | 746 | * |
iva2k | 0:1802fb31b938 | 747 | * Description: This function is used to read an unsigned integer from a charecter buffer in the platform |
iva2k | 0:1802fb31b938 | 748 | * containing big endian processor |
iva2k | 0:1802fb31b938 | 749 | * |
iva2k | 0:1802fb31b938 | 750 | * Arguments : pmem Pointer to the charecter buffer |
iva2k | 0:1802fb31b938 | 751 | * |
iva2k | 0:1802fb31b938 | 752 | * Returns : val Unsigned integer |
iva2k | 0:1802fb31b938 | 753 | * |
iva2k | 0:1802fb31b938 | 754 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 755 | */ |
iva2k | 0:1802fb31b938 | 756 | |
iva2k | 0:1802fb31b938 | 757 | USB_INT32U ReadBE32U (volatile USB_INT08U *pmem) |
iva2k | 0:1802fb31b938 | 758 | { |
iva2k | 0:1802fb31b938 | 759 | USB_INT32U val; |
iva2k | 0:1802fb31b938 | 760 | |
iva2k | 0:1802fb31b938 | 761 | ((USB_INT08U *)&val)[0] = pmem[3]; |
iva2k | 0:1802fb31b938 | 762 | ((USB_INT08U *)&val)[1] = pmem[2]; |
iva2k | 0:1802fb31b938 | 763 | ((USB_INT08U *)&val)[2] = pmem[1]; |
iva2k | 0:1802fb31b938 | 764 | ((USB_INT08U *)&val)[3] = pmem[0]; |
iva2k | 0:1802fb31b938 | 765 | |
iva2k | 0:1802fb31b938 | 766 | return (val); |
iva2k | 0:1802fb31b938 | 767 | } |
iva2k | 0:1802fb31b938 | 768 | |
iva2k | 0:1802fb31b938 | 769 | /* |
iva2k | 0:1802fb31b938 | 770 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 771 | * WRITE BE 32U |
iva2k | 0:1802fb31b938 | 772 | * |
iva2k | 0:1802fb31b938 | 773 | * Description: This function is used to write an unsigned integer into a charecter buffer in the platform |
iva2k | 0:1802fb31b938 | 774 | * containing big endian processor |
iva2k | 0:1802fb31b938 | 775 | * |
iva2k | 0:1802fb31b938 | 776 | * Arguments : pmem Pointer to the charecter buffer |
iva2k | 0:1802fb31b938 | 777 | * val Value to be placed in the charecter buffer |
iva2k | 0:1802fb31b938 | 778 | * |
iva2k | 0:1802fb31b938 | 779 | * Returns : None |
iva2k | 0:1802fb31b938 | 780 | * |
iva2k | 0:1802fb31b938 | 781 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 782 | */ |
iva2k | 0:1802fb31b938 | 783 | |
iva2k | 0:1802fb31b938 | 784 | void WriteBE32U (volatile USB_INT08U *pmem, |
iva2k | 0:1802fb31b938 | 785 | USB_INT32U val) |
iva2k | 0:1802fb31b938 | 786 | { |
iva2k | 0:1802fb31b938 | 787 | pmem[0] = ((USB_INT08U *)&val)[3]; |
iva2k | 0:1802fb31b938 | 788 | pmem[1] = ((USB_INT08U *)&val)[2]; |
iva2k | 0:1802fb31b938 | 789 | pmem[2] = ((USB_INT08U *)&val)[1]; |
iva2k | 0:1802fb31b938 | 790 | pmem[3] = ((USB_INT08U *)&val)[0]; |
iva2k | 0:1802fb31b938 | 791 | |
iva2k | 0:1802fb31b938 | 792 | } |
iva2k | 0:1802fb31b938 | 793 | |
iva2k | 0:1802fb31b938 | 794 | /* |
iva2k | 0:1802fb31b938 | 795 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 796 | * READ BE 16U |
iva2k | 0:1802fb31b938 | 797 | * |
iva2k | 0:1802fb31b938 | 798 | * Description: This function is used to read an unsigned short integer from a charecter buffer in the platform |
iva2k | 0:1802fb31b938 | 799 | * containing big endian processor |
iva2k | 0:1802fb31b938 | 800 | * |
iva2k | 0:1802fb31b938 | 801 | * Arguments : pmem Pointer to the charecter buffer |
iva2k | 0:1802fb31b938 | 802 | * |
iva2k | 0:1802fb31b938 | 803 | * Returns : val Unsigned short integer |
iva2k | 0:1802fb31b938 | 804 | * |
iva2k | 0:1802fb31b938 | 805 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 806 | */ |
iva2k | 0:1802fb31b938 | 807 | |
iva2k | 0:1802fb31b938 | 808 | USB_INT16U ReadBE16U (volatile USB_INT08U *pmem) |
iva2k | 0:1802fb31b938 | 809 | { |
iva2k | 0:1802fb31b938 | 810 | USB_INT16U val; |
iva2k | 0:1802fb31b938 | 811 | |
iva2k | 0:1802fb31b938 | 812 | |
iva2k | 0:1802fb31b938 | 813 | ((USB_INT08U *)&val)[0] = pmem[1]; |
iva2k | 0:1802fb31b938 | 814 | ((USB_INT08U *)&val)[1] = pmem[0]; |
iva2k | 0:1802fb31b938 | 815 | |
iva2k | 0:1802fb31b938 | 816 | return (val); |
iva2k | 0:1802fb31b938 | 817 | } |
iva2k | 0:1802fb31b938 | 818 | |
iva2k | 0:1802fb31b938 | 819 | /* |
iva2k | 0:1802fb31b938 | 820 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 821 | * WRITE BE 16U |
iva2k | 0:1802fb31b938 | 822 | * |
iva2k | 0:1802fb31b938 | 823 | * Description: This function is used to write an unsigned short integer into the charecter buffer in the |
iva2k | 0:1802fb31b938 | 824 | * platform containing big endian processor |
iva2k | 0:1802fb31b938 | 825 | * |
iva2k | 0:1802fb31b938 | 826 | * Arguments : pmem Pointer to the charecter buffer |
iva2k | 0:1802fb31b938 | 827 | * val Value to be placed in the charecter buffer |
iva2k | 0:1802fb31b938 | 828 | * |
iva2k | 0:1802fb31b938 | 829 | * Returns : None |
iva2k | 0:1802fb31b938 | 830 | * |
iva2k | 0:1802fb31b938 | 831 | ************************************************************************************************************** |
iva2k | 0:1802fb31b938 | 832 | */ |
iva2k | 0:1802fb31b938 | 833 | |
iva2k | 0:1802fb31b938 | 834 | void WriteBE16U (volatile USB_INT08U *pmem, |
iva2k | 0:1802fb31b938 | 835 | USB_INT16U val) |
iva2k | 0:1802fb31b938 | 836 | { |
iva2k | 0:1802fb31b938 | 837 | pmem[0] = ((USB_INT08U *)&val)[1]; |
iva2k | 0:1802fb31b938 | 838 | pmem[1] = ((USB_INT08U *)&val)[0]; |
iva2k | 0:1802fb31b938 | 839 | } |