Eli Hughes
/
COMPACT_FLASH
Compact Flash I/O test
USBHostLite/usbhost_lpc17xx.c@1:dc171f34db9b, 2011-12-30 (annotated)
- Committer:
- emh203
- Date:
- Fri Dec 30 21:02:16 2011 +0000
- Revision:
- 1:dc171f34db9b
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
emh203 | 1:dc171f34db9b | 1 | /* |
emh203 | 1:dc171f34db9b | 2 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 3 | * NXP USB Host Stack |
emh203 | 1:dc171f34db9b | 4 | * |
emh203 | 1:dc171f34db9b | 5 | * (c) Copyright 2008, NXP SemiConductors |
emh203 | 1:dc171f34db9b | 6 | * (c) Copyright 2008, OnChip Technologies LLC |
emh203 | 1:dc171f34db9b | 7 | * All Rights Reserved |
emh203 | 1:dc171f34db9b | 8 | * |
emh203 | 1:dc171f34db9b | 9 | * www.nxp.com |
emh203 | 1:dc171f34db9b | 10 | * www.onchiptech.com |
emh203 | 1:dc171f34db9b | 11 | * |
emh203 | 1:dc171f34db9b | 12 | * File : usbhost_lpc17xx.c |
emh203 | 1:dc171f34db9b | 13 | * Programmer(s) : Ravikanth.P |
emh203 | 1:dc171f34db9b | 14 | * Version : |
emh203 | 1:dc171f34db9b | 15 | * |
emh203 | 1:dc171f34db9b | 16 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 17 | */ |
emh203 | 1:dc171f34db9b | 18 | |
emh203 | 1:dc171f34db9b | 19 | /* |
emh203 | 1:dc171f34db9b | 20 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 21 | * INCLUDE HEADER FILES |
emh203 | 1:dc171f34db9b | 22 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 23 | */ |
emh203 | 1:dc171f34db9b | 24 | |
emh203 | 1:dc171f34db9b | 25 | #include "usbhost_lpc17xx.h" |
emh203 | 1:dc171f34db9b | 26 | |
emh203 | 1:dc171f34db9b | 27 | /* |
emh203 | 1:dc171f34db9b | 28 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 29 | * GLOBAL VARIABLES |
emh203 | 1:dc171f34db9b | 30 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 31 | */ |
emh203 | 1:dc171f34db9b | 32 | volatile int gUSBConnected; |
emh203 | 1:dc171f34db9b | 33 | |
emh203 | 1:dc171f34db9b | 34 | volatile USB_INT32U HOST_RhscIntr = 0; /* Root Hub Status Change interrupt */ |
emh203 | 1:dc171f34db9b | 35 | volatile USB_INT32U HOST_WdhIntr = 0; /* Semaphore to wait until the TD is submitted */ |
emh203 | 1:dc171f34db9b | 36 | volatile USB_INT08U HOST_TDControlStatus = 0; |
emh203 | 1:dc171f34db9b | 37 | volatile HCED *EDCtrl; /* Control endpoint descriptor structure */ |
emh203 | 1:dc171f34db9b | 38 | volatile HCED *EDBulkIn; /* BulkIn endpoint descriptor structure */ |
emh203 | 1:dc171f34db9b | 39 | volatile HCED *EDBulkOut; /* BulkOut endpoint descriptor structure */ |
emh203 | 1:dc171f34db9b | 40 | volatile HCTD *TDHead; /* Head transfer descriptor structure */ |
emh203 | 1:dc171f34db9b | 41 | volatile HCTD *TDTail; /* Tail transfer descriptor structure */ |
emh203 | 1:dc171f34db9b | 42 | volatile HCCA *Hcca; /* Host Controller Communications Area structure */ |
emh203 | 1:dc171f34db9b | 43 | USB_INT16U *TDBufNonVol; /* Identical to TDBuffer just to reduce compiler warnings */ |
emh203 | 1:dc171f34db9b | 44 | volatile USB_INT08U *TDBuffer; /* Current Buffer Pointer of transfer descriptor */ |
emh203 | 1:dc171f34db9b | 45 | |
emh203 | 1:dc171f34db9b | 46 | // USB host structures |
emh203 | 1:dc171f34db9b | 47 | // AHB SRAM block 1 |
emh203 | 1:dc171f34db9b | 48 | #define HOSTBASEADDR 0x2007C000 |
emh203 | 1:dc171f34db9b | 49 | // reserve memory for the linker |
emh203 | 1:dc171f34db9b | 50 | static USB_INT08U HostBuf[0x200] __attribute__((at(HOSTBASEADDR))); |
emh203 | 1:dc171f34db9b | 51 | /* |
emh203 | 1:dc171f34db9b | 52 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 53 | * DELAY IN MILLI SECONDS |
emh203 | 1:dc171f34db9b | 54 | * |
emh203 | 1:dc171f34db9b | 55 | * Description: This function provides a delay in milli seconds |
emh203 | 1:dc171f34db9b | 56 | * |
emh203 | 1:dc171f34db9b | 57 | * Arguments : delay The delay required |
emh203 | 1:dc171f34db9b | 58 | * |
emh203 | 1:dc171f34db9b | 59 | * Returns : None |
emh203 | 1:dc171f34db9b | 60 | * |
emh203 | 1:dc171f34db9b | 61 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 62 | */ |
emh203 | 1:dc171f34db9b | 63 | |
emh203 | 1:dc171f34db9b | 64 | void Host_DelayMS (USB_INT32U delay) |
emh203 | 1:dc171f34db9b | 65 | { |
emh203 | 1:dc171f34db9b | 66 | volatile USB_INT32U i; |
emh203 | 1:dc171f34db9b | 67 | |
emh203 | 1:dc171f34db9b | 68 | |
emh203 | 1:dc171f34db9b | 69 | for (i = 0; i < delay; i++) { |
emh203 | 1:dc171f34db9b | 70 | Host_DelayUS(1000); |
emh203 | 1:dc171f34db9b | 71 | } |
emh203 | 1:dc171f34db9b | 72 | } |
emh203 | 1:dc171f34db9b | 73 | |
emh203 | 1:dc171f34db9b | 74 | /* |
emh203 | 1:dc171f34db9b | 75 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 76 | * DELAY IN MICRO SECONDS |
emh203 | 1:dc171f34db9b | 77 | * |
emh203 | 1:dc171f34db9b | 78 | * Description: This function provides a delay in micro seconds |
emh203 | 1:dc171f34db9b | 79 | * |
emh203 | 1:dc171f34db9b | 80 | * Arguments : delay The delay required |
emh203 | 1:dc171f34db9b | 81 | * |
emh203 | 1:dc171f34db9b | 82 | * Returns : None |
emh203 | 1:dc171f34db9b | 83 | * |
emh203 | 1:dc171f34db9b | 84 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 85 | */ |
emh203 | 1:dc171f34db9b | 86 | |
emh203 | 1:dc171f34db9b | 87 | void Host_DelayUS (USB_INT32U delay) |
emh203 | 1:dc171f34db9b | 88 | { |
emh203 | 1:dc171f34db9b | 89 | volatile USB_INT32U i; |
emh203 | 1:dc171f34db9b | 90 | |
emh203 | 1:dc171f34db9b | 91 | |
emh203 | 1:dc171f34db9b | 92 | for (i = 0; i < (4 * delay); i++) { /* This logic was tested. It gives app. 1 micro sec delay */ |
emh203 | 1:dc171f34db9b | 93 | ; |
emh203 | 1:dc171f34db9b | 94 | } |
emh203 | 1:dc171f34db9b | 95 | } |
emh203 | 1:dc171f34db9b | 96 | |
emh203 | 1:dc171f34db9b | 97 | // bits of the USB/OTG clock control register |
emh203 | 1:dc171f34db9b | 98 | #define HOST_CLK_EN (1<<0) |
emh203 | 1:dc171f34db9b | 99 | #define DEV_CLK_EN (1<<1) |
emh203 | 1:dc171f34db9b | 100 | #define PORTSEL_CLK_EN (1<<3) |
emh203 | 1:dc171f34db9b | 101 | #define AHB_CLK_EN (1<<4) |
emh203 | 1:dc171f34db9b | 102 | |
emh203 | 1:dc171f34db9b | 103 | // bits of the USB/OTG clock status register |
emh203 | 1:dc171f34db9b | 104 | #define HOST_CLK_ON (1<<0) |
emh203 | 1:dc171f34db9b | 105 | #define DEV_CLK_ON (1<<1) |
emh203 | 1:dc171f34db9b | 106 | #define PORTSEL_CLK_ON (1<<3) |
emh203 | 1:dc171f34db9b | 107 | #define AHB_CLK_ON (1<<4) |
emh203 | 1:dc171f34db9b | 108 | |
emh203 | 1:dc171f34db9b | 109 | // we need host clock, OTG/portsel clock and AHB clock |
emh203 | 1:dc171f34db9b | 110 | #define CLOCK_MASK (HOST_CLK_EN | PORTSEL_CLK_EN | AHB_CLK_EN) |
emh203 | 1:dc171f34db9b | 111 | |
emh203 | 1:dc171f34db9b | 112 | /* |
emh203 | 1:dc171f34db9b | 113 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 114 | * INITIALIZE THE HOST CONTROLLER |
emh203 | 1:dc171f34db9b | 115 | * |
emh203 | 1:dc171f34db9b | 116 | * Description: This function initializes lpc17xx host controller |
emh203 | 1:dc171f34db9b | 117 | * |
emh203 | 1:dc171f34db9b | 118 | * Arguments : None |
emh203 | 1:dc171f34db9b | 119 | * |
emh203 | 1:dc171f34db9b | 120 | * Returns : |
emh203 | 1:dc171f34db9b | 121 | * |
emh203 | 1:dc171f34db9b | 122 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 123 | */ |
emh203 | 1:dc171f34db9b | 124 | void Host_Init(void) |
emh203 | 1:dc171f34db9b | 125 | { |
emh203 | 1:dc171f34db9b | 126 | // PRINT_Log("In Host_Init\n"); |
emh203 | 1:dc171f34db9b | 127 | NVIC_DisableIRQ(USB_IRQn); /* Disable the USB interrupt source */ |
emh203 | 1:dc171f34db9b | 128 | |
emh203 | 1:dc171f34db9b | 129 | // turn on power for USB |
emh203 | 1:dc171f34db9b | 130 | LPC_SC->PCONP |= (1UL<<31); |
emh203 | 1:dc171f34db9b | 131 | // Enable USB host clock, port selection and AHB clock |
emh203 | 1:dc171f34db9b | 132 | LPC_USB->USBClkCtrl |= CLOCK_MASK; |
emh203 | 1:dc171f34db9b | 133 | // Wait for clocks to become available |
emh203 | 1:dc171f34db9b | 134 | while ((LPC_USB->USBClkSt & CLOCK_MASK) != CLOCK_MASK) |
emh203 | 1:dc171f34db9b | 135 | ; |
emh203 | 1:dc171f34db9b | 136 | |
emh203 | 1:dc171f34db9b | 137 | // it seems the bits[0:1] mean the following |
emh203 | 1:dc171f34db9b | 138 | // 0: U1=device, U2=host |
emh203 | 1:dc171f34db9b | 139 | // 1: U1=host, U2=host |
emh203 | 1:dc171f34db9b | 140 | // 2: reserved |
emh203 | 1:dc171f34db9b | 141 | // 3: U1=host, U2=device |
emh203 | 1:dc171f34db9b | 142 | // NB: this register is only available if OTG clock (aka "port select") is enabled!! |
emh203 | 1:dc171f34db9b | 143 | // since we don't care about port 2, set just bit 0 to 1 (U1=host) |
emh203 | 1:dc171f34db9b | 144 | LPC_USB->OTGStCtrl |= 1; |
emh203 | 1:dc171f34db9b | 145 | |
emh203 | 1:dc171f34db9b | 146 | // now that we've configured the ports, we can turn off the portsel clock |
emh203 | 1:dc171f34db9b | 147 | LPC_USB->USBClkCtrl &= ~PORTSEL_CLK_EN; |
emh203 | 1:dc171f34db9b | 148 | |
emh203 | 1:dc171f34db9b | 149 | // power pins are not connected on mbed, so we can skip them |
emh203 | 1:dc171f34db9b | 150 | /* P1[18] = USB_UP_LED, 01 */ |
emh203 | 1:dc171f34db9b | 151 | /* P1[19] = /USB_PPWR, 10 */ |
emh203 | 1:dc171f34db9b | 152 | /* P1[22] = USB_PWRD, 10 */ |
emh203 | 1:dc171f34db9b | 153 | /* P1[27] = /USB_OVRCR, 10 */ |
emh203 | 1:dc171f34db9b | 154 | /*LPC_PINCON->PINSEL3 &= ~((3<<4) | (3<<6) | (3<<12) | (3<<22)); |
emh203 | 1:dc171f34db9b | 155 | LPC_PINCON->PINSEL3 |= ((1<<4)|(2<<6) | (2<<12) | (2<<22)); // 0x00802080 |
emh203 | 1:dc171f34db9b | 156 | */ |
emh203 | 1:dc171f34db9b | 157 | |
emh203 | 1:dc171f34db9b | 158 | // configure USB D+/D- pins |
emh203 | 1:dc171f34db9b | 159 | /* P0[29] = USB_D+, 01 */ |
emh203 | 1:dc171f34db9b | 160 | /* P0[30] = USB_D-, 01 */ |
emh203 | 1:dc171f34db9b | 161 | LPC_PINCON->PINSEL1 &= ~((3<<26) | (3<<28)); |
emh203 | 1:dc171f34db9b | 162 | LPC_PINCON->PINSEL1 |= ((1<<26)|(1<<28)); // 0x14000000 |
emh203 | 1:dc171f34db9b | 163 | |
emh203 | 1:dc171f34db9b | 164 | //PRINT_Log("Initializing Host Stack\n"); |
emh203 | 1:dc171f34db9b | 165 | |
emh203 | 1:dc171f34db9b | 166 | Hcca = (volatile HCCA *)(HostBuf+0x000); |
emh203 | 1:dc171f34db9b | 167 | TDHead = (volatile HCTD *)(HostBuf+0x100); |
emh203 | 1:dc171f34db9b | 168 | TDTail = (volatile HCTD *)(HostBuf+0x110); |
emh203 | 1:dc171f34db9b | 169 | EDCtrl = (volatile HCED *)(HostBuf+0x120); |
emh203 | 1:dc171f34db9b | 170 | EDBulkIn = (volatile HCED *)(HostBuf+0x130); |
emh203 | 1:dc171f34db9b | 171 | EDBulkOut = (volatile HCED *)(HostBuf+0x140); |
emh203 | 1:dc171f34db9b | 172 | TDBuffer = (volatile USB_INT08U *)(HostBuf+0x150); |
emh203 | 1:dc171f34db9b | 173 | |
emh203 | 1:dc171f34db9b | 174 | /* Initialize all the TDs, EDs and HCCA to 0 */ |
emh203 | 1:dc171f34db9b | 175 | Host_EDInit(EDCtrl); |
emh203 | 1:dc171f34db9b | 176 | Host_EDInit(EDBulkIn); |
emh203 | 1:dc171f34db9b | 177 | Host_EDInit(EDBulkOut); |
emh203 | 1:dc171f34db9b | 178 | Host_TDInit(TDHead); |
emh203 | 1:dc171f34db9b | 179 | Host_TDInit(TDTail); |
emh203 | 1:dc171f34db9b | 180 | Host_HCCAInit(Hcca); |
emh203 | 1:dc171f34db9b | 181 | |
emh203 | 1:dc171f34db9b | 182 | Host_DelayMS(50); /* Wait 50 ms before apply reset */ |
emh203 | 1:dc171f34db9b | 183 | LPC_USB->HcControl = 0; /* HARDWARE RESET */ |
emh203 | 1:dc171f34db9b | 184 | LPC_USB->HcControlHeadED = 0; /* Initialize Control list head to Zero */ |
emh203 | 1:dc171f34db9b | 185 | LPC_USB->HcBulkHeadED = 0; /* Initialize Bulk list head to Zero */ |
emh203 | 1:dc171f34db9b | 186 | |
emh203 | 1:dc171f34db9b | 187 | /* SOFTWARE RESET */ |
emh203 | 1:dc171f34db9b | 188 | LPC_USB->HcCommandStatus = OR_CMD_STATUS_HCR; |
emh203 | 1:dc171f34db9b | 189 | LPC_USB->HcFmInterval = DEFAULT_FMINTERVAL; /* Write Fm Interval and Largest Data Packet Counter */ |
emh203 | 1:dc171f34db9b | 190 | |
emh203 | 1:dc171f34db9b | 191 | /* Put HC in operational state */ |
emh203 | 1:dc171f34db9b | 192 | LPC_USB->HcControl = (LPC_USB->HcControl & (~OR_CONTROL_HCFS)) | OR_CONTROL_HC_OPER; |
emh203 | 1:dc171f34db9b | 193 | LPC_USB->HcRhStatus = OR_RH_STATUS_LPSC; /* Set Global Power */ |
emh203 | 1:dc171f34db9b | 194 | |
emh203 | 1:dc171f34db9b | 195 | LPC_USB->HcHCCA = (USB_INT32U)Hcca; |
emh203 | 1:dc171f34db9b | 196 | LPC_USB->HcInterruptStatus |= LPC_USB->HcInterruptStatus; /* Clear Interrrupt Status */ |
emh203 | 1:dc171f34db9b | 197 | |
emh203 | 1:dc171f34db9b | 198 | |
emh203 | 1:dc171f34db9b | 199 | LPC_USB->HcInterruptEnable = OR_INTR_ENABLE_MIE | |
emh203 | 1:dc171f34db9b | 200 | OR_INTR_ENABLE_WDH | |
emh203 | 1:dc171f34db9b | 201 | OR_INTR_ENABLE_RHSC; |
emh203 | 1:dc171f34db9b | 202 | |
emh203 | 1:dc171f34db9b | 203 | NVIC_SetPriority(USB_IRQn, 0); /* highest priority */ |
emh203 | 1:dc171f34db9b | 204 | /* Enable the USB Interrupt */ |
emh203 | 1:dc171f34db9b | 205 | NVIC_EnableIRQ(USB_IRQn); |
emh203 | 1:dc171f34db9b | 206 | // PRINT_Log("Host Initialized\n"); |
emh203 | 1:dc171f34db9b | 207 | } |
emh203 | 1:dc171f34db9b | 208 | |
emh203 | 1:dc171f34db9b | 209 | /* |
emh203 | 1:dc171f34db9b | 210 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 211 | * INTERRUPT SERVICE ROUTINE |
emh203 | 1:dc171f34db9b | 212 | * |
emh203 | 1:dc171f34db9b | 213 | * Description: This function services the interrupt caused by host controller |
emh203 | 1:dc171f34db9b | 214 | * |
emh203 | 1:dc171f34db9b | 215 | * Arguments : None |
emh203 | 1:dc171f34db9b | 216 | * |
emh203 | 1:dc171f34db9b | 217 | * Returns : None |
emh203 | 1:dc171f34db9b | 218 | * |
emh203 | 1:dc171f34db9b | 219 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 220 | */ |
emh203 | 1:dc171f34db9b | 221 | |
emh203 | 1:dc171f34db9b | 222 | void USB_IRQHandler (void) __irq |
emh203 | 1:dc171f34db9b | 223 | { |
emh203 | 1:dc171f34db9b | 224 | USB_INT32U int_status; |
emh203 | 1:dc171f34db9b | 225 | USB_INT32U ie_status; |
emh203 | 1:dc171f34db9b | 226 | |
emh203 | 1:dc171f34db9b | 227 | int_status = LPC_USB->HcInterruptStatus; /* Read Interrupt Status */ |
emh203 | 1:dc171f34db9b | 228 | ie_status = LPC_USB->HcInterruptEnable; /* Read Interrupt enable status */ |
emh203 | 1:dc171f34db9b | 229 | |
emh203 | 1:dc171f34db9b | 230 | if (!(int_status & ie_status)) { |
emh203 | 1:dc171f34db9b | 231 | return; |
emh203 | 1:dc171f34db9b | 232 | } else { |
emh203 | 1:dc171f34db9b | 233 | |
emh203 | 1:dc171f34db9b | 234 | int_status = int_status & ie_status; |
emh203 | 1:dc171f34db9b | 235 | if (int_status & OR_INTR_STATUS_RHSC) { /* Root hub status change interrupt */ |
emh203 | 1:dc171f34db9b | 236 | if (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_CSC) { |
emh203 | 1:dc171f34db9b | 237 | if (LPC_USB->HcRhStatus & OR_RH_STATUS_DRWE) { |
emh203 | 1:dc171f34db9b | 238 | /* |
emh203 | 1:dc171f34db9b | 239 | * When DRWE is on, Connect Status Change |
emh203 | 1:dc171f34db9b | 240 | * means a remote wakeup event. |
emh203 | 1:dc171f34db9b | 241 | */ |
emh203 | 1:dc171f34db9b | 242 | HOST_RhscIntr = 1;// JUST SOMETHING FOR A BREAKPOINT |
emh203 | 1:dc171f34db9b | 243 | } |
emh203 | 1:dc171f34db9b | 244 | else { |
emh203 | 1:dc171f34db9b | 245 | /* |
emh203 | 1:dc171f34db9b | 246 | * When DRWE is off, Connect Status Change |
emh203 | 1:dc171f34db9b | 247 | * is NOT a remote wakeup event |
emh203 | 1:dc171f34db9b | 248 | */ |
emh203 | 1:dc171f34db9b | 249 | if (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_CCS) { |
emh203 | 1:dc171f34db9b | 250 | if (!gUSBConnected) { |
emh203 | 1:dc171f34db9b | 251 | HOST_TDControlStatus = 0; |
emh203 | 1:dc171f34db9b | 252 | HOST_WdhIntr = 0; |
emh203 | 1:dc171f34db9b | 253 | HOST_RhscIntr = 1; |
emh203 | 1:dc171f34db9b | 254 | gUSBConnected = 1; |
emh203 | 1:dc171f34db9b | 255 | } |
emh203 | 1:dc171f34db9b | 256 | else |
emh203 | 1:dc171f34db9b | 257 | PRINT_Log("Spurious status change (connected)?\n"); |
emh203 | 1:dc171f34db9b | 258 | } else { |
emh203 | 1:dc171f34db9b | 259 | if (gUSBConnected) { |
emh203 | 1:dc171f34db9b | 260 | LPC_USB->HcInterruptEnable = 0; // why do we get multiple disc. rupts??? |
emh203 | 1:dc171f34db9b | 261 | HOST_RhscIntr = 0; |
emh203 | 1:dc171f34db9b | 262 | gUSBConnected = 0; |
emh203 | 1:dc171f34db9b | 263 | } |
emh203 | 1:dc171f34db9b | 264 | else |
emh203 | 1:dc171f34db9b | 265 | PRINT_Log("Spurious status change (disconnected)?\n"); |
emh203 | 1:dc171f34db9b | 266 | } |
emh203 | 1:dc171f34db9b | 267 | } |
emh203 | 1:dc171f34db9b | 268 | LPC_USB->HcRhPortStatus1 = OR_RH_PORT_CSC; |
emh203 | 1:dc171f34db9b | 269 | } |
emh203 | 1:dc171f34db9b | 270 | if (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_PRSC) { |
emh203 | 1:dc171f34db9b | 271 | LPC_USB->HcRhPortStatus1 = OR_RH_PORT_PRSC; |
emh203 | 1:dc171f34db9b | 272 | } |
emh203 | 1:dc171f34db9b | 273 | } |
emh203 | 1:dc171f34db9b | 274 | if (int_status & OR_INTR_STATUS_WDH) { /* Writeback Done Head interrupt */ |
emh203 | 1:dc171f34db9b | 275 | HOST_WdhIntr = 1; |
emh203 | 1:dc171f34db9b | 276 | HOST_TDControlStatus = (TDHead->Control >> 28) & 0xf; |
emh203 | 1:dc171f34db9b | 277 | } |
emh203 | 1:dc171f34db9b | 278 | LPC_USB->HcInterruptStatus = int_status; /* Clear interrupt status register */ |
emh203 | 1:dc171f34db9b | 279 | } |
emh203 | 1:dc171f34db9b | 280 | return; |
emh203 | 1:dc171f34db9b | 281 | } |
emh203 | 1:dc171f34db9b | 282 | |
emh203 | 1:dc171f34db9b | 283 | |
emh203 | 1:dc171f34db9b | 284 | /* |
emh203 | 1:dc171f34db9b | 285 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 286 | * PROCESS TRANSFER DESCRIPTOR |
emh203 | 1:dc171f34db9b | 287 | * |
emh203 | 1:dc171f34db9b | 288 | * Description: This function processes the transfer descriptor |
emh203 | 1:dc171f34db9b | 289 | * |
emh203 | 1:dc171f34db9b | 290 | * Arguments : ed Endpoint descriptor that contains this transfer descriptor |
emh203 | 1:dc171f34db9b | 291 | * token SETUP, IN, OUT |
emh203 | 1:dc171f34db9b | 292 | * buffer Current Buffer Pointer of the transfer descriptor |
emh203 | 1:dc171f34db9b | 293 | * buffer_len Length of the buffer |
emh203 | 1:dc171f34db9b | 294 | * |
emh203 | 1:dc171f34db9b | 295 | * Returns : OK if TD submission is successful |
emh203 | 1:dc171f34db9b | 296 | * ERROR if TD submission fails |
emh203 | 1:dc171f34db9b | 297 | * |
emh203 | 1:dc171f34db9b | 298 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 299 | */ |
emh203 | 1:dc171f34db9b | 300 | |
emh203 | 1:dc171f34db9b | 301 | USB_INT32S Host_ProcessTD (volatile HCED *ed, |
emh203 | 1:dc171f34db9b | 302 | volatile USB_INT32U token, |
emh203 | 1:dc171f34db9b | 303 | volatile USB_INT08U *buffer, |
emh203 | 1:dc171f34db9b | 304 | USB_INT32U buffer_len) |
emh203 | 1:dc171f34db9b | 305 | { |
emh203 | 1:dc171f34db9b | 306 | volatile USB_INT32U td_toggle; |
emh203 | 1:dc171f34db9b | 307 | |
emh203 | 1:dc171f34db9b | 308 | |
emh203 | 1:dc171f34db9b | 309 | if (ed == EDCtrl) { |
emh203 | 1:dc171f34db9b | 310 | if (token == TD_SETUP) { |
emh203 | 1:dc171f34db9b | 311 | td_toggle = TD_TOGGLE_0; |
emh203 | 1:dc171f34db9b | 312 | } else { |
emh203 | 1:dc171f34db9b | 313 | td_toggle = TD_TOGGLE_1; |
emh203 | 1:dc171f34db9b | 314 | } |
emh203 | 1:dc171f34db9b | 315 | } else { |
emh203 | 1:dc171f34db9b | 316 | td_toggle = 0; |
emh203 | 1:dc171f34db9b | 317 | } |
emh203 | 1:dc171f34db9b | 318 | TDHead->Control = (TD_ROUNDING | |
emh203 | 1:dc171f34db9b | 319 | token | |
emh203 | 1:dc171f34db9b | 320 | TD_DELAY_INT(0) | |
emh203 | 1:dc171f34db9b | 321 | td_toggle | |
emh203 | 1:dc171f34db9b | 322 | TD_CC); |
emh203 | 1:dc171f34db9b | 323 | TDTail->Control = 0; |
emh203 | 1:dc171f34db9b | 324 | TDHead->CurrBufPtr = (USB_INT32U) buffer; |
emh203 | 1:dc171f34db9b | 325 | TDTail->CurrBufPtr = 0; |
emh203 | 1:dc171f34db9b | 326 | TDHead->Next = (USB_INT32U) TDTail; |
emh203 | 1:dc171f34db9b | 327 | TDTail->Next = 0; |
emh203 | 1:dc171f34db9b | 328 | TDHead->BufEnd = (USB_INT32U)(buffer + (buffer_len - 1)); |
emh203 | 1:dc171f34db9b | 329 | TDTail->BufEnd = 0; |
emh203 | 1:dc171f34db9b | 330 | |
emh203 | 1:dc171f34db9b | 331 | ed->HeadTd = (USB_INT32U)TDHead | ((ed->HeadTd) & 0x00000002); |
emh203 | 1:dc171f34db9b | 332 | ed->TailTd = (USB_INT32U)TDTail; |
emh203 | 1:dc171f34db9b | 333 | ed->Next = 0; |
emh203 | 1:dc171f34db9b | 334 | |
emh203 | 1:dc171f34db9b | 335 | if (ed == EDCtrl) { |
emh203 | 1:dc171f34db9b | 336 | LPC_USB->HcControlHeadED = (USB_INT32U)ed; |
emh203 | 1:dc171f34db9b | 337 | LPC_USB->HcCommandStatus = LPC_USB->HcCommandStatus | OR_CMD_STATUS_CLF; |
emh203 | 1:dc171f34db9b | 338 | LPC_USB->HcControl = LPC_USB->HcControl | OR_CONTROL_CLE; |
emh203 | 1:dc171f34db9b | 339 | } else { |
emh203 | 1:dc171f34db9b | 340 | LPC_USB->HcBulkHeadED = (USB_INT32U)ed; |
emh203 | 1:dc171f34db9b | 341 | LPC_USB->HcCommandStatus = LPC_USB->HcCommandStatus | OR_CMD_STATUS_BLF; |
emh203 | 1:dc171f34db9b | 342 | LPC_USB->HcControl = LPC_USB->HcControl | OR_CONTROL_BLE; |
emh203 | 1:dc171f34db9b | 343 | } |
emh203 | 1:dc171f34db9b | 344 | |
emh203 | 1:dc171f34db9b | 345 | Host_WDHWait(); |
emh203 | 1:dc171f34db9b | 346 | |
emh203 | 1:dc171f34db9b | 347 | // if (!(TDHead->Control & 0xF0000000)) { |
emh203 | 1:dc171f34db9b | 348 | if (!HOST_TDControlStatus) { |
emh203 | 1:dc171f34db9b | 349 | return (OK); |
emh203 | 1:dc171f34db9b | 350 | } else { |
emh203 | 1:dc171f34db9b | 351 | return (ERR_TD_FAIL); |
emh203 | 1:dc171f34db9b | 352 | } |
emh203 | 1:dc171f34db9b | 353 | } |
emh203 | 1:dc171f34db9b | 354 | |
emh203 | 1:dc171f34db9b | 355 | /* |
emh203 | 1:dc171f34db9b | 356 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 357 | * ENUMERATE THE DEVICE |
emh203 | 1:dc171f34db9b | 358 | * |
emh203 | 1:dc171f34db9b | 359 | * Description: This function is used to enumerate the device connected |
emh203 | 1:dc171f34db9b | 360 | * |
emh203 | 1:dc171f34db9b | 361 | * Arguments : None |
emh203 | 1:dc171f34db9b | 362 | * |
emh203 | 1:dc171f34db9b | 363 | * Returns : None |
emh203 | 1:dc171f34db9b | 364 | * |
emh203 | 1:dc171f34db9b | 365 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 366 | */ |
emh203 | 1:dc171f34db9b | 367 | |
emh203 | 1:dc171f34db9b | 368 | USB_INT32S Host_EnumDev (void) |
emh203 | 1:dc171f34db9b | 369 | { |
emh203 | 1:dc171f34db9b | 370 | USB_INT32S rc; |
emh203 | 1:dc171f34db9b | 371 | |
emh203 | 1:dc171f34db9b | 372 | // PRINT_Log("Connect a Mass Storage device\r\n"); |
emh203 | 1:dc171f34db9b | 373 | while (!HOST_RhscIntr) |
emh203 | 1:dc171f34db9b | 374 | __WFI(); |
emh203 | 1:dc171f34db9b | 375 | Host_DelayMS(100); /* USB 2.0 spec says atleast 50ms delay beore port reset */ |
emh203 | 1:dc171f34db9b | 376 | LPC_USB->HcRhPortStatus1 = OR_RH_PORT_PRS; // Initiate port reset |
emh203 | 1:dc171f34db9b | 377 | while (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_PRS) |
emh203 | 1:dc171f34db9b | 378 | __WFI(); // Wait for port reset to complete... |
emh203 | 1:dc171f34db9b | 379 | LPC_USB->HcRhPortStatus1 = OR_RH_PORT_PRSC; // ...and clear port reset signal |
emh203 | 1:dc171f34db9b | 380 | Host_DelayMS(200); /* Wait for 100 MS after port reset */ |
emh203 | 1:dc171f34db9b | 381 | |
emh203 | 1:dc171f34db9b | 382 | EDCtrl->Control = 8 << 16; /* Put max pkt size = 8 */ |
emh203 | 1:dc171f34db9b | 383 | /* Read first 8 bytes of device desc */ |
emh203 | 1:dc171f34db9b | 384 | rc = HOST_GET_DESCRIPTOR(USB_DESCRIPTOR_TYPE_DEVICE, 0, TDBuffer, 8); |
emh203 | 1:dc171f34db9b | 385 | if (rc != OK) { |
emh203 | 1:dc171f34db9b | 386 | PRINT_Err(rc); |
emh203 | 1:dc171f34db9b | 387 | return (rc); |
emh203 | 1:dc171f34db9b | 388 | } |
emh203 | 1:dc171f34db9b | 389 | EDCtrl->Control = TDBuffer[7] << 16; /* Get max pkt size of endpoint 0 */ |
emh203 | 1:dc171f34db9b | 390 | rc = HOST_SET_ADDRESS(1); /* Set the device address to 1 */ |
emh203 | 1:dc171f34db9b | 391 | if (rc != OK) { |
emh203 | 1:dc171f34db9b | 392 | PRINT_Err(rc); |
emh203 | 1:dc171f34db9b | 393 | return (rc); |
emh203 | 1:dc171f34db9b | 394 | } |
emh203 | 1:dc171f34db9b | 395 | Host_DelayMS(2); |
emh203 | 1:dc171f34db9b | 396 | EDCtrl->Control = (EDCtrl->Control) | 1; /* Modify control pipe with address 1 */ |
emh203 | 1:dc171f34db9b | 397 | /* Get the configuration descriptor */ |
emh203 | 1:dc171f34db9b | 398 | rc = HOST_GET_DESCRIPTOR(USB_DESCRIPTOR_TYPE_CONFIGURATION, 0, TDBuffer, 9); |
emh203 | 1:dc171f34db9b | 399 | if (rc != OK) { |
emh203 | 1:dc171f34db9b | 400 | PRINT_Err(rc); |
emh203 | 1:dc171f34db9b | 401 | return (rc); |
emh203 | 1:dc171f34db9b | 402 | } |
emh203 | 1:dc171f34db9b | 403 | /* Get the first configuration data */ |
emh203 | 1:dc171f34db9b | 404 | rc = HOST_GET_DESCRIPTOR(USB_DESCRIPTOR_TYPE_CONFIGURATION, 0, TDBuffer, ReadLE16U(&TDBuffer[2])); |
emh203 | 1:dc171f34db9b | 405 | if (rc != OK) { |
emh203 | 1:dc171f34db9b | 406 | PRINT_Err(rc); |
emh203 | 1:dc171f34db9b | 407 | return (rc); |
emh203 | 1:dc171f34db9b | 408 | } |
emh203 | 1:dc171f34db9b | 409 | rc = MS_ParseConfiguration(); /* Parse the configuration */ |
emh203 | 1:dc171f34db9b | 410 | if (rc != OK) { |
emh203 | 1:dc171f34db9b | 411 | PRINT_Err(rc); |
emh203 | 1:dc171f34db9b | 412 | return (rc); |
emh203 | 1:dc171f34db9b | 413 | } |
emh203 | 1:dc171f34db9b | 414 | rc = USBH_SET_CONFIGURATION(1); /* Select device configuration 1 */ |
emh203 | 1:dc171f34db9b | 415 | if (rc != OK) { |
emh203 | 1:dc171f34db9b | 416 | PRINT_Err(rc); |
emh203 | 1:dc171f34db9b | 417 | } |
emh203 | 1:dc171f34db9b | 418 | Host_DelayMS(100); /* Some devices may require this delay */ |
emh203 | 1:dc171f34db9b | 419 | return (rc); |
emh203 | 1:dc171f34db9b | 420 | } |
emh203 | 1:dc171f34db9b | 421 | |
emh203 | 1:dc171f34db9b | 422 | /* |
emh203 | 1:dc171f34db9b | 423 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 424 | * RECEIVE THE CONTROL INFORMATION |
emh203 | 1:dc171f34db9b | 425 | * |
emh203 | 1:dc171f34db9b | 426 | * Description: This function is used to receive the control information |
emh203 | 1:dc171f34db9b | 427 | * |
emh203 | 1:dc171f34db9b | 428 | * Arguments : bm_request_type |
emh203 | 1:dc171f34db9b | 429 | * b_request |
emh203 | 1:dc171f34db9b | 430 | * w_value |
emh203 | 1:dc171f34db9b | 431 | * w_index |
emh203 | 1:dc171f34db9b | 432 | * w_length |
emh203 | 1:dc171f34db9b | 433 | * buffer |
emh203 | 1:dc171f34db9b | 434 | * |
emh203 | 1:dc171f34db9b | 435 | * Returns : OK if Success |
emh203 | 1:dc171f34db9b | 436 | * ERROR if Failed |
emh203 | 1:dc171f34db9b | 437 | * |
emh203 | 1:dc171f34db9b | 438 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 439 | */ |
emh203 | 1:dc171f34db9b | 440 | |
emh203 | 1:dc171f34db9b | 441 | USB_INT32S Host_CtrlRecv ( USB_INT08U bm_request_type, |
emh203 | 1:dc171f34db9b | 442 | USB_INT08U b_request, |
emh203 | 1:dc171f34db9b | 443 | USB_INT16U w_value, |
emh203 | 1:dc171f34db9b | 444 | USB_INT16U w_index, |
emh203 | 1:dc171f34db9b | 445 | USB_INT16U w_length, |
emh203 | 1:dc171f34db9b | 446 | volatile USB_INT08U *buffer) |
emh203 | 1:dc171f34db9b | 447 | { |
emh203 | 1:dc171f34db9b | 448 | USB_INT32S rc; |
emh203 | 1:dc171f34db9b | 449 | |
emh203 | 1:dc171f34db9b | 450 | |
emh203 | 1:dc171f34db9b | 451 | Host_FillSetup(bm_request_type, b_request, w_value, w_index, w_length); |
emh203 | 1:dc171f34db9b | 452 | rc = Host_ProcessTD(EDCtrl, TD_SETUP, TDBuffer, 8); |
emh203 | 1:dc171f34db9b | 453 | if (rc == OK) { |
emh203 | 1:dc171f34db9b | 454 | if (w_length) { |
emh203 | 1:dc171f34db9b | 455 | rc = Host_ProcessTD(EDCtrl, TD_IN, TDBuffer, w_length); |
emh203 | 1:dc171f34db9b | 456 | } |
emh203 | 1:dc171f34db9b | 457 | if (rc == OK) { |
emh203 | 1:dc171f34db9b | 458 | rc = Host_ProcessTD(EDCtrl, TD_OUT, NULL, 0); |
emh203 | 1:dc171f34db9b | 459 | } |
emh203 | 1:dc171f34db9b | 460 | } |
emh203 | 1:dc171f34db9b | 461 | return (rc); |
emh203 | 1:dc171f34db9b | 462 | } |
emh203 | 1:dc171f34db9b | 463 | |
emh203 | 1:dc171f34db9b | 464 | /* |
emh203 | 1:dc171f34db9b | 465 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 466 | * SEND THE CONTROL INFORMATION |
emh203 | 1:dc171f34db9b | 467 | * |
emh203 | 1:dc171f34db9b | 468 | * Description: This function is used to send the control information |
emh203 | 1:dc171f34db9b | 469 | * |
emh203 | 1:dc171f34db9b | 470 | * Arguments : None |
emh203 | 1:dc171f34db9b | 471 | * |
emh203 | 1:dc171f34db9b | 472 | * Returns : OK if Success |
emh203 | 1:dc171f34db9b | 473 | * ERR_INVALID_BOOTSIG if Failed |
emh203 | 1:dc171f34db9b | 474 | * |
emh203 | 1:dc171f34db9b | 475 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 476 | */ |
emh203 | 1:dc171f34db9b | 477 | |
emh203 | 1:dc171f34db9b | 478 | USB_INT32S Host_CtrlSend ( USB_INT08U bm_request_type, |
emh203 | 1:dc171f34db9b | 479 | USB_INT08U b_request, |
emh203 | 1:dc171f34db9b | 480 | USB_INT16U w_value, |
emh203 | 1:dc171f34db9b | 481 | USB_INT16U w_index, |
emh203 | 1:dc171f34db9b | 482 | USB_INT16U w_length, |
emh203 | 1:dc171f34db9b | 483 | volatile USB_INT08U *buffer) |
emh203 | 1:dc171f34db9b | 484 | { |
emh203 | 1:dc171f34db9b | 485 | USB_INT32S rc; |
emh203 | 1:dc171f34db9b | 486 | |
emh203 | 1:dc171f34db9b | 487 | |
emh203 | 1:dc171f34db9b | 488 | Host_FillSetup(bm_request_type, b_request, w_value, w_index, w_length); |
emh203 | 1:dc171f34db9b | 489 | |
emh203 | 1:dc171f34db9b | 490 | rc = Host_ProcessTD(EDCtrl, TD_SETUP, TDBuffer, 8); |
emh203 | 1:dc171f34db9b | 491 | if (rc == OK) { |
emh203 | 1:dc171f34db9b | 492 | if (w_length) { |
emh203 | 1:dc171f34db9b | 493 | rc = Host_ProcessTD(EDCtrl, TD_OUT, TDBuffer, w_length); |
emh203 | 1:dc171f34db9b | 494 | } |
emh203 | 1:dc171f34db9b | 495 | if (rc == OK) { |
emh203 | 1:dc171f34db9b | 496 | rc = Host_ProcessTD(EDCtrl, TD_IN, NULL, 0); |
emh203 | 1:dc171f34db9b | 497 | } |
emh203 | 1:dc171f34db9b | 498 | } |
emh203 | 1:dc171f34db9b | 499 | return (rc); |
emh203 | 1:dc171f34db9b | 500 | } |
emh203 | 1:dc171f34db9b | 501 | |
emh203 | 1:dc171f34db9b | 502 | /* |
emh203 | 1:dc171f34db9b | 503 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 504 | * FILL SETUP PACKET |
emh203 | 1:dc171f34db9b | 505 | * |
emh203 | 1:dc171f34db9b | 506 | * Description: This function is used to fill the setup packet |
emh203 | 1:dc171f34db9b | 507 | * |
emh203 | 1:dc171f34db9b | 508 | * Arguments : None |
emh203 | 1:dc171f34db9b | 509 | * |
emh203 | 1:dc171f34db9b | 510 | * Returns : OK if Success |
emh203 | 1:dc171f34db9b | 511 | * ERR_INVALID_BOOTSIG if Failed |
emh203 | 1:dc171f34db9b | 512 | * |
emh203 | 1:dc171f34db9b | 513 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 514 | */ |
emh203 | 1:dc171f34db9b | 515 | |
emh203 | 1:dc171f34db9b | 516 | void Host_FillSetup (USB_INT08U bm_request_type, |
emh203 | 1:dc171f34db9b | 517 | USB_INT08U b_request, |
emh203 | 1:dc171f34db9b | 518 | USB_INT16U w_value, |
emh203 | 1:dc171f34db9b | 519 | USB_INT16U w_index, |
emh203 | 1:dc171f34db9b | 520 | USB_INT16U w_length) |
emh203 | 1:dc171f34db9b | 521 | { |
emh203 | 1:dc171f34db9b | 522 | int i; |
emh203 | 1:dc171f34db9b | 523 | for (i=0;i<w_length;i++) |
emh203 | 1:dc171f34db9b | 524 | TDBuffer[i] = 0; |
emh203 | 1:dc171f34db9b | 525 | |
emh203 | 1:dc171f34db9b | 526 | TDBuffer[0] = bm_request_type; |
emh203 | 1:dc171f34db9b | 527 | TDBuffer[1] = b_request; |
emh203 | 1:dc171f34db9b | 528 | WriteLE16U(&TDBuffer[2], w_value); |
emh203 | 1:dc171f34db9b | 529 | WriteLE16U(&TDBuffer[4], w_index); |
emh203 | 1:dc171f34db9b | 530 | WriteLE16U(&TDBuffer[6], w_length); |
emh203 | 1:dc171f34db9b | 531 | } |
emh203 | 1:dc171f34db9b | 532 | |
emh203 | 1:dc171f34db9b | 533 | |
emh203 | 1:dc171f34db9b | 534 | |
emh203 | 1:dc171f34db9b | 535 | /* |
emh203 | 1:dc171f34db9b | 536 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 537 | * INITIALIZE THE TRANSFER DESCRIPTOR |
emh203 | 1:dc171f34db9b | 538 | * |
emh203 | 1:dc171f34db9b | 539 | * Description: This function initializes transfer descriptor |
emh203 | 1:dc171f34db9b | 540 | * |
emh203 | 1:dc171f34db9b | 541 | * Arguments : Pointer to TD structure |
emh203 | 1:dc171f34db9b | 542 | * |
emh203 | 1:dc171f34db9b | 543 | * Returns : None |
emh203 | 1:dc171f34db9b | 544 | * |
emh203 | 1:dc171f34db9b | 545 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 546 | */ |
emh203 | 1:dc171f34db9b | 547 | |
emh203 | 1:dc171f34db9b | 548 | void Host_TDInit (volatile HCTD *td) |
emh203 | 1:dc171f34db9b | 549 | { |
emh203 | 1:dc171f34db9b | 550 | |
emh203 | 1:dc171f34db9b | 551 | td->Control = 0; |
emh203 | 1:dc171f34db9b | 552 | td->CurrBufPtr = 0; |
emh203 | 1:dc171f34db9b | 553 | td->Next = 0; |
emh203 | 1:dc171f34db9b | 554 | td->BufEnd = 0; |
emh203 | 1:dc171f34db9b | 555 | } |
emh203 | 1:dc171f34db9b | 556 | |
emh203 | 1:dc171f34db9b | 557 | /* |
emh203 | 1:dc171f34db9b | 558 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 559 | * INITIALIZE THE ENDPOINT DESCRIPTOR |
emh203 | 1:dc171f34db9b | 560 | * |
emh203 | 1:dc171f34db9b | 561 | * Description: This function initializes endpoint descriptor |
emh203 | 1:dc171f34db9b | 562 | * |
emh203 | 1:dc171f34db9b | 563 | * Arguments : Pointer to ED strcuture |
emh203 | 1:dc171f34db9b | 564 | * |
emh203 | 1:dc171f34db9b | 565 | * Returns : None |
emh203 | 1:dc171f34db9b | 566 | * |
emh203 | 1:dc171f34db9b | 567 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 568 | */ |
emh203 | 1:dc171f34db9b | 569 | |
emh203 | 1:dc171f34db9b | 570 | void Host_EDInit (volatile HCED *ed) |
emh203 | 1:dc171f34db9b | 571 | { |
emh203 | 1:dc171f34db9b | 572 | |
emh203 | 1:dc171f34db9b | 573 | ed->Control = 0; |
emh203 | 1:dc171f34db9b | 574 | ed->TailTd = 0; |
emh203 | 1:dc171f34db9b | 575 | ed->HeadTd = 0; |
emh203 | 1:dc171f34db9b | 576 | ed->Next = 0; |
emh203 | 1:dc171f34db9b | 577 | } |
emh203 | 1:dc171f34db9b | 578 | |
emh203 | 1:dc171f34db9b | 579 | /* |
emh203 | 1:dc171f34db9b | 580 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 581 | * INITIALIZE HOST CONTROLLER COMMUNICATIONS AREA |
emh203 | 1:dc171f34db9b | 582 | * |
emh203 | 1:dc171f34db9b | 583 | * Description: This function initializes host controller communications area |
emh203 | 1:dc171f34db9b | 584 | * |
emh203 | 1:dc171f34db9b | 585 | * Arguments : Pointer to HCCA |
emh203 | 1:dc171f34db9b | 586 | * |
emh203 | 1:dc171f34db9b | 587 | * Returns : |
emh203 | 1:dc171f34db9b | 588 | * |
emh203 | 1:dc171f34db9b | 589 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 590 | */ |
emh203 | 1:dc171f34db9b | 591 | |
emh203 | 1:dc171f34db9b | 592 | void Host_HCCAInit (volatile HCCA *hcca) |
emh203 | 1:dc171f34db9b | 593 | { |
emh203 | 1:dc171f34db9b | 594 | USB_INT32U i; |
emh203 | 1:dc171f34db9b | 595 | |
emh203 | 1:dc171f34db9b | 596 | |
emh203 | 1:dc171f34db9b | 597 | for (i = 0; i < 32; i++) { |
emh203 | 1:dc171f34db9b | 598 | |
emh203 | 1:dc171f34db9b | 599 | hcca->IntTable[i] = 0; |
emh203 | 1:dc171f34db9b | 600 | hcca->FrameNumber = 0; |
emh203 | 1:dc171f34db9b | 601 | hcca->DoneHead = 0; |
emh203 | 1:dc171f34db9b | 602 | } |
emh203 | 1:dc171f34db9b | 603 | |
emh203 | 1:dc171f34db9b | 604 | } |
emh203 | 1:dc171f34db9b | 605 | |
emh203 | 1:dc171f34db9b | 606 | /* |
emh203 | 1:dc171f34db9b | 607 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 608 | * WAIT FOR WDH INTERRUPT |
emh203 | 1:dc171f34db9b | 609 | * |
emh203 | 1:dc171f34db9b | 610 | * Description: This function is infinite loop which breaks when ever a WDH interrupt rises |
emh203 | 1:dc171f34db9b | 611 | * |
emh203 | 1:dc171f34db9b | 612 | * Arguments : None |
emh203 | 1:dc171f34db9b | 613 | * |
emh203 | 1:dc171f34db9b | 614 | * Returns : None |
emh203 | 1:dc171f34db9b | 615 | * |
emh203 | 1:dc171f34db9b | 616 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 617 | */ |
emh203 | 1:dc171f34db9b | 618 | |
emh203 | 1:dc171f34db9b | 619 | void Host_WDHWait (void) |
emh203 | 1:dc171f34db9b | 620 | { |
emh203 | 1:dc171f34db9b | 621 | while (!HOST_WdhIntr) |
emh203 | 1:dc171f34db9b | 622 | __WFI(); |
emh203 | 1:dc171f34db9b | 623 | |
emh203 | 1:dc171f34db9b | 624 | HOST_WdhIntr = 0; |
emh203 | 1:dc171f34db9b | 625 | } |
emh203 | 1:dc171f34db9b | 626 | |
emh203 | 1:dc171f34db9b | 627 | /* |
emh203 | 1:dc171f34db9b | 628 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 629 | * READ LE 32U |
emh203 | 1:dc171f34db9b | 630 | * |
emh203 | 1:dc171f34db9b | 631 | * Description: This function is used to read an unsigned integer from a character buffer in the platform |
emh203 | 1:dc171f34db9b | 632 | * containing little endian processor |
emh203 | 1:dc171f34db9b | 633 | * |
emh203 | 1:dc171f34db9b | 634 | * Arguments : pmem Pointer to the character buffer |
emh203 | 1:dc171f34db9b | 635 | * |
emh203 | 1:dc171f34db9b | 636 | * Returns : val Unsigned integer |
emh203 | 1:dc171f34db9b | 637 | * |
emh203 | 1:dc171f34db9b | 638 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 639 | */ |
emh203 | 1:dc171f34db9b | 640 | |
emh203 | 1:dc171f34db9b | 641 | USB_INT32U ReadLE32U (volatile USB_INT08U *pmem) |
emh203 | 1:dc171f34db9b | 642 | { |
emh203 | 1:dc171f34db9b | 643 | USB_INT32U val = *(USB_INT32U*)pmem; |
emh203 | 1:dc171f34db9b | 644 | #ifdef __BIG_ENDIAN |
emh203 | 1:dc171f34db9b | 645 | return __REV(val); |
emh203 | 1:dc171f34db9b | 646 | #else |
emh203 | 1:dc171f34db9b | 647 | return val; |
emh203 | 1:dc171f34db9b | 648 | #endif |
emh203 | 1:dc171f34db9b | 649 | } |
emh203 | 1:dc171f34db9b | 650 | |
emh203 | 1:dc171f34db9b | 651 | /* |
emh203 | 1:dc171f34db9b | 652 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 653 | * WRITE LE 32U |
emh203 | 1:dc171f34db9b | 654 | * |
emh203 | 1:dc171f34db9b | 655 | * Description: This function is used to write an unsigned integer into a charecter buffer in the platform |
emh203 | 1:dc171f34db9b | 656 | * containing little endian processor. |
emh203 | 1:dc171f34db9b | 657 | * |
emh203 | 1:dc171f34db9b | 658 | * Arguments : pmem Pointer to the charecter buffer |
emh203 | 1:dc171f34db9b | 659 | * val Integer value to be placed in the charecter buffer |
emh203 | 1:dc171f34db9b | 660 | * |
emh203 | 1:dc171f34db9b | 661 | * Returns : None |
emh203 | 1:dc171f34db9b | 662 | * |
emh203 | 1:dc171f34db9b | 663 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 664 | */ |
emh203 | 1:dc171f34db9b | 665 | |
emh203 | 1:dc171f34db9b | 666 | void WriteLE32U (volatile USB_INT08U *pmem, |
emh203 | 1:dc171f34db9b | 667 | USB_INT32U val) |
emh203 | 1:dc171f34db9b | 668 | { |
emh203 | 1:dc171f34db9b | 669 | #ifdef __BIG_ENDIAN |
emh203 | 1:dc171f34db9b | 670 | *(USB_INT32U*)pmem = __REV(val); |
emh203 | 1:dc171f34db9b | 671 | #else |
emh203 | 1:dc171f34db9b | 672 | *(USB_INT32U*)pmem = val; |
emh203 | 1:dc171f34db9b | 673 | #endif |
emh203 | 1:dc171f34db9b | 674 | } |
emh203 | 1:dc171f34db9b | 675 | |
emh203 | 1:dc171f34db9b | 676 | /* |
emh203 | 1:dc171f34db9b | 677 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 678 | * READ LE 16U |
emh203 | 1:dc171f34db9b | 679 | * |
emh203 | 1:dc171f34db9b | 680 | * Description: This function is used to read an unsigned short integer from a charecter buffer in the platform |
emh203 | 1:dc171f34db9b | 681 | * containing little endian processor |
emh203 | 1:dc171f34db9b | 682 | * |
emh203 | 1:dc171f34db9b | 683 | * Arguments : pmem Pointer to the charecter buffer |
emh203 | 1:dc171f34db9b | 684 | * |
emh203 | 1:dc171f34db9b | 685 | * Returns : val Unsigned short integer |
emh203 | 1:dc171f34db9b | 686 | * |
emh203 | 1:dc171f34db9b | 687 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 688 | */ |
emh203 | 1:dc171f34db9b | 689 | |
emh203 | 1:dc171f34db9b | 690 | USB_INT16U ReadLE16U (volatile USB_INT08U *pmem) |
emh203 | 1:dc171f34db9b | 691 | { |
emh203 | 1:dc171f34db9b | 692 | USB_INT16U val = *(USB_INT16U*)pmem; |
emh203 | 1:dc171f34db9b | 693 | #ifdef __BIG_ENDIAN |
emh203 | 1:dc171f34db9b | 694 | return __REV16(val); |
emh203 | 1:dc171f34db9b | 695 | #else |
emh203 | 1:dc171f34db9b | 696 | return val; |
emh203 | 1:dc171f34db9b | 697 | #endif |
emh203 | 1:dc171f34db9b | 698 | } |
emh203 | 1:dc171f34db9b | 699 | |
emh203 | 1:dc171f34db9b | 700 | /* |
emh203 | 1:dc171f34db9b | 701 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 702 | * WRITE LE 16U |
emh203 | 1:dc171f34db9b | 703 | * |
emh203 | 1:dc171f34db9b | 704 | * Description: This function is used to write an unsigned short integer into a charecter buffer in the |
emh203 | 1:dc171f34db9b | 705 | * platform containing little endian processor |
emh203 | 1:dc171f34db9b | 706 | * |
emh203 | 1:dc171f34db9b | 707 | * Arguments : pmem Pointer to the charecter buffer |
emh203 | 1:dc171f34db9b | 708 | * val Value to be placed in the charecter buffer |
emh203 | 1:dc171f34db9b | 709 | * |
emh203 | 1:dc171f34db9b | 710 | * Returns : None |
emh203 | 1:dc171f34db9b | 711 | * |
emh203 | 1:dc171f34db9b | 712 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 713 | */ |
emh203 | 1:dc171f34db9b | 714 | |
emh203 | 1:dc171f34db9b | 715 | void WriteLE16U (volatile USB_INT08U *pmem, |
emh203 | 1:dc171f34db9b | 716 | USB_INT16U val) |
emh203 | 1:dc171f34db9b | 717 | { |
emh203 | 1:dc171f34db9b | 718 | #ifdef __BIG_ENDIAN |
emh203 | 1:dc171f34db9b | 719 | *(USB_INT16U*)pmem = (__REV16(val) & 0xFFFF); |
emh203 | 1:dc171f34db9b | 720 | #else |
emh203 | 1:dc171f34db9b | 721 | *(USB_INT16U*)pmem = val; |
emh203 | 1:dc171f34db9b | 722 | #endif |
emh203 | 1:dc171f34db9b | 723 | } |
emh203 | 1:dc171f34db9b | 724 | |
emh203 | 1:dc171f34db9b | 725 | /* |
emh203 | 1:dc171f34db9b | 726 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 727 | * READ BE 32U |
emh203 | 1:dc171f34db9b | 728 | * |
emh203 | 1:dc171f34db9b | 729 | * Description: This function is used to read an unsigned integer from a charecter buffer in the platform |
emh203 | 1:dc171f34db9b | 730 | * containing big endian processor |
emh203 | 1:dc171f34db9b | 731 | * |
emh203 | 1:dc171f34db9b | 732 | * Arguments : pmem Pointer to the charecter buffer |
emh203 | 1:dc171f34db9b | 733 | * |
emh203 | 1:dc171f34db9b | 734 | * Returns : val Unsigned integer |
emh203 | 1:dc171f34db9b | 735 | * |
emh203 | 1:dc171f34db9b | 736 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 737 | */ |
emh203 | 1:dc171f34db9b | 738 | |
emh203 | 1:dc171f34db9b | 739 | USB_INT32U ReadBE32U (volatile USB_INT08U *pmem) |
emh203 | 1:dc171f34db9b | 740 | { |
emh203 | 1:dc171f34db9b | 741 | USB_INT32U val = *(USB_INT32U*)pmem; |
emh203 | 1:dc171f34db9b | 742 | #ifdef __BIG_ENDIAN |
emh203 | 1:dc171f34db9b | 743 | return val; |
emh203 | 1:dc171f34db9b | 744 | #else |
emh203 | 1:dc171f34db9b | 745 | return __REV(val); |
emh203 | 1:dc171f34db9b | 746 | #endif |
emh203 | 1:dc171f34db9b | 747 | } |
emh203 | 1:dc171f34db9b | 748 | |
emh203 | 1:dc171f34db9b | 749 | /* |
emh203 | 1:dc171f34db9b | 750 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 751 | * WRITE BE 32U |
emh203 | 1:dc171f34db9b | 752 | * |
emh203 | 1:dc171f34db9b | 753 | * Description: This function is used to write an unsigned integer into a charecter buffer in the platform |
emh203 | 1:dc171f34db9b | 754 | * containing big endian processor |
emh203 | 1:dc171f34db9b | 755 | * |
emh203 | 1:dc171f34db9b | 756 | * Arguments : pmem Pointer to the charecter buffer |
emh203 | 1:dc171f34db9b | 757 | * val Value to be placed in the charecter buffer |
emh203 | 1:dc171f34db9b | 758 | * |
emh203 | 1:dc171f34db9b | 759 | * Returns : None |
emh203 | 1:dc171f34db9b | 760 | * |
emh203 | 1:dc171f34db9b | 761 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 762 | */ |
emh203 | 1:dc171f34db9b | 763 | |
emh203 | 1:dc171f34db9b | 764 | void WriteBE32U (volatile USB_INT08U *pmem, |
emh203 | 1:dc171f34db9b | 765 | USB_INT32U val) |
emh203 | 1:dc171f34db9b | 766 | { |
emh203 | 1:dc171f34db9b | 767 | #ifdef __BIG_ENDIAN |
emh203 | 1:dc171f34db9b | 768 | *(USB_INT32U*)pmem = val; |
emh203 | 1:dc171f34db9b | 769 | #else |
emh203 | 1:dc171f34db9b | 770 | *(USB_INT32U*)pmem = __REV(val); |
emh203 | 1:dc171f34db9b | 771 | #endif |
emh203 | 1:dc171f34db9b | 772 | } |
emh203 | 1:dc171f34db9b | 773 | |
emh203 | 1:dc171f34db9b | 774 | /* |
emh203 | 1:dc171f34db9b | 775 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 776 | * READ BE 16U |
emh203 | 1:dc171f34db9b | 777 | * |
emh203 | 1:dc171f34db9b | 778 | * Description: This function is used to read an unsigned short integer from a charecter buffer in the platform |
emh203 | 1:dc171f34db9b | 779 | * containing big endian processor |
emh203 | 1:dc171f34db9b | 780 | * |
emh203 | 1:dc171f34db9b | 781 | * Arguments : pmem Pointer to the charecter buffer |
emh203 | 1:dc171f34db9b | 782 | * |
emh203 | 1:dc171f34db9b | 783 | * Returns : val Unsigned short integer |
emh203 | 1:dc171f34db9b | 784 | * |
emh203 | 1:dc171f34db9b | 785 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 786 | */ |
emh203 | 1:dc171f34db9b | 787 | |
emh203 | 1:dc171f34db9b | 788 | USB_INT16U ReadBE16U (volatile USB_INT08U *pmem) |
emh203 | 1:dc171f34db9b | 789 | { |
emh203 | 1:dc171f34db9b | 790 | USB_INT16U val = *(USB_INT16U*)pmem; |
emh203 | 1:dc171f34db9b | 791 | #ifdef __BIG_ENDIAN |
emh203 | 1:dc171f34db9b | 792 | return val; |
emh203 | 1:dc171f34db9b | 793 | #else |
emh203 | 1:dc171f34db9b | 794 | return __REV16(val); |
emh203 | 1:dc171f34db9b | 795 | #endif |
emh203 | 1:dc171f34db9b | 796 | } |
emh203 | 1:dc171f34db9b | 797 | |
emh203 | 1:dc171f34db9b | 798 | /* |
emh203 | 1:dc171f34db9b | 799 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 800 | * WRITE BE 16U |
emh203 | 1:dc171f34db9b | 801 | * |
emh203 | 1:dc171f34db9b | 802 | * Description: This function is used to write an unsigned short integer into the charecter buffer in the |
emh203 | 1:dc171f34db9b | 803 | * platform containing big endian processor |
emh203 | 1:dc171f34db9b | 804 | * |
emh203 | 1:dc171f34db9b | 805 | * Arguments : pmem Pointer to the charecter buffer |
emh203 | 1:dc171f34db9b | 806 | * val Value to be placed in the charecter buffer |
emh203 | 1:dc171f34db9b | 807 | * |
emh203 | 1:dc171f34db9b | 808 | * Returns : None |
emh203 | 1:dc171f34db9b | 809 | * |
emh203 | 1:dc171f34db9b | 810 | ************************************************************************************************************** |
emh203 | 1:dc171f34db9b | 811 | */ |
emh203 | 1:dc171f34db9b | 812 | |
emh203 | 1:dc171f34db9b | 813 | void WriteBE16U (volatile USB_INT08U *pmem, |
emh203 | 1:dc171f34db9b | 814 | USB_INT16U val) |
emh203 | 1:dc171f34db9b | 815 | { |
emh203 | 1:dc171f34db9b | 816 | #ifdef __BIG_ENDIAN |
emh203 | 1:dc171f34db9b | 817 | *(USB_INT16U*)pmem = val; |
emh203 | 1:dc171f34db9b | 818 | #else |
emh203 | 1:dc171f34db9b | 819 | *(USB_INT16U*)pmem = (__REV16(val) & 0xFFFF); |
emh203 | 1:dc171f34db9b | 820 | #endif |
emh203 | 1:dc171f34db9b | 821 | } |