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features/unsupported/USBDevice/USBDevice/USBHAL_LPC17.cpp@1:2b6e8130a0ac, 2018-02-22 (annotated)
- Committer:
- calmantara186
- Date:
- Thu Feb 22 14:05:19 2018 +0000
- Revision:
- 1:2b6e8130a0ac
- Parent:
- 0:f269e3021894
mbed os
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| elessair | 0:f269e3021894 | 1 | /* Copyright (c) 2010-2011 mbed.org, MIT License |
| elessair | 0:f269e3021894 | 2 | * |
| elessair | 0:f269e3021894 | 3 | * Permission is hereby granted, free of charge, to any person obtaining a copy of this software |
| elessair | 0:f269e3021894 | 4 | * and associated documentation files (the "Software"), to deal in the Software without |
| elessair | 0:f269e3021894 | 5 | * restriction, including without limitation the rights to use, copy, modify, merge, publish, |
| elessair | 0:f269e3021894 | 6 | * distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the |
| elessair | 0:f269e3021894 | 7 | * Software is furnished to do so, subject to the following conditions: |
| elessair | 0:f269e3021894 | 8 | * |
| elessair | 0:f269e3021894 | 9 | * The above copyright notice and this permission notice shall be included in all copies or |
| elessair | 0:f269e3021894 | 10 | * substantial portions of the Software. |
| elessair | 0:f269e3021894 | 11 | * |
| elessair | 0:f269e3021894 | 12 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING |
| elessair | 0:f269e3021894 | 13 | * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| elessair | 0:f269e3021894 | 14 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, |
| elessair | 0:f269e3021894 | 15 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| elessair | 0:f269e3021894 | 16 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| elessair | 0:f269e3021894 | 17 | */ |
| elessair | 0:f269e3021894 | 18 | |
| elessair | 0:f269e3021894 | 19 | #if defined(TARGET_LPC1768) || defined(TARGET_LPC2368) || defined(TARGET_LPC2460) |
| elessair | 0:f269e3021894 | 20 | |
| elessair | 0:f269e3021894 | 21 | #include "USBHAL.h" |
| elessair | 0:f269e3021894 | 22 | |
| elessair | 0:f269e3021894 | 23 | |
| elessair | 0:f269e3021894 | 24 | // Get endpoint direction |
| elessair | 0:f269e3021894 | 25 | #define IN_EP(endpoint) ((endpoint) & 1U ? true : false) |
| elessair | 0:f269e3021894 | 26 | #define OUT_EP(endpoint) ((endpoint) & 1U ? false : true) |
| elessair | 0:f269e3021894 | 27 | |
| elessair | 0:f269e3021894 | 28 | // Convert physical endpoint number to register bit |
| elessair | 0:f269e3021894 | 29 | #define EP(endpoint) (1UL<<endpoint) |
| elessair | 0:f269e3021894 | 30 | |
| elessair | 0:f269e3021894 | 31 | // Power Control for Peripherals register |
| elessair | 0:f269e3021894 | 32 | #define PCUSB (1UL<<31) |
| elessair | 0:f269e3021894 | 33 | |
| elessair | 0:f269e3021894 | 34 | // USB Clock Control register |
| elessair | 0:f269e3021894 | 35 | #define DEV_CLK_EN (1UL<<1) |
| elessair | 0:f269e3021894 | 36 | #define AHB_CLK_EN (1UL<<4) |
| elessair | 0:f269e3021894 | 37 | |
| elessair | 0:f269e3021894 | 38 | // USB Clock Status register |
| elessair | 0:f269e3021894 | 39 | #define DEV_CLK_ON (1UL<<1) |
| elessair | 0:f269e3021894 | 40 | #define AHB_CLK_ON (1UL<<4) |
| elessair | 0:f269e3021894 | 41 | |
| elessair | 0:f269e3021894 | 42 | // USB Device Interupt registers |
| elessair | 0:f269e3021894 | 43 | #define FRAME (1UL<<0) |
| elessair | 0:f269e3021894 | 44 | #define EP_FAST (1UL<<1) |
| elessair | 0:f269e3021894 | 45 | #define EP_SLOW (1UL<<2) |
| elessair | 0:f269e3021894 | 46 | #define DEV_STAT (1UL<<3) |
| elessair | 0:f269e3021894 | 47 | #define CCEMPTY (1UL<<4) |
| elessair | 0:f269e3021894 | 48 | #define CDFULL (1UL<<5) |
| elessair | 0:f269e3021894 | 49 | #define RxENDPKT (1UL<<6) |
| elessair | 0:f269e3021894 | 50 | #define TxENDPKT (1UL<<7) |
| elessair | 0:f269e3021894 | 51 | #define EP_RLZED (1UL<<8) |
| elessair | 0:f269e3021894 | 52 | #define ERR_INT (1UL<<9) |
| elessair | 0:f269e3021894 | 53 | |
| elessair | 0:f269e3021894 | 54 | // USB Control register |
| elessair | 0:f269e3021894 | 55 | #define RD_EN (1<<0) |
| elessair | 0:f269e3021894 | 56 | #define WR_EN (1<<1) |
| elessair | 0:f269e3021894 | 57 | #define LOG_ENDPOINT(endpoint) ((endpoint>>1)<<2) |
| elessair | 0:f269e3021894 | 58 | |
| elessair | 0:f269e3021894 | 59 | // USB Receive Packet Length register |
| elessair | 0:f269e3021894 | 60 | #define DV (1UL<<10) |
| elessair | 0:f269e3021894 | 61 | #define PKT_RDY (1UL<<11) |
| elessair | 0:f269e3021894 | 62 | #define PKT_LNGTH_MASK (0x3ff) |
| elessair | 0:f269e3021894 | 63 | |
| elessair | 0:f269e3021894 | 64 | // Serial Interface Engine (SIE) |
| elessair | 0:f269e3021894 | 65 | #define SIE_WRITE (0x01) |
| elessair | 0:f269e3021894 | 66 | #define SIE_READ (0x02) |
| elessair | 0:f269e3021894 | 67 | #define SIE_COMMAND (0x05) |
| elessair | 0:f269e3021894 | 68 | #define SIE_CMD_CODE(phase, data) ((phase<<8)|(data<<16)) |
| elessair | 0:f269e3021894 | 69 | |
| elessair | 0:f269e3021894 | 70 | // SIE Command codes |
| elessair | 0:f269e3021894 | 71 | #define SIE_CMD_SET_ADDRESS (0xD0) |
| elessair | 0:f269e3021894 | 72 | #define SIE_CMD_CONFIGURE_DEVICE (0xD8) |
| elessair | 0:f269e3021894 | 73 | #define SIE_CMD_SET_MODE (0xF3) |
| elessair | 0:f269e3021894 | 74 | #define SIE_CMD_READ_FRAME_NUMBER (0xF5) |
| elessair | 0:f269e3021894 | 75 | #define SIE_CMD_READ_TEST_REGISTER (0xFD) |
| elessair | 0:f269e3021894 | 76 | #define SIE_CMD_SET_DEVICE_STATUS (0xFE) |
| elessair | 0:f269e3021894 | 77 | #define SIE_CMD_GET_DEVICE_STATUS (0xFE) |
| elessair | 0:f269e3021894 | 78 | #define SIE_CMD_GET_ERROR_CODE (0xFF) |
| elessair | 0:f269e3021894 | 79 | #define SIE_CMD_READ_ERROR_STATUS (0xFB) |
| elessair | 0:f269e3021894 | 80 | |
| elessair | 0:f269e3021894 | 81 | #define SIE_CMD_SELECT_ENDPOINT(endpoint) (0x00+endpoint) |
| elessair | 0:f269e3021894 | 82 | #define SIE_CMD_SELECT_ENDPOINT_CLEAR_INTERRUPT(endpoint) (0x40+endpoint) |
| elessair | 0:f269e3021894 | 83 | #define SIE_CMD_SET_ENDPOINT_STATUS(endpoint) (0x40+endpoint) |
| elessair | 0:f269e3021894 | 84 | |
| elessair | 0:f269e3021894 | 85 | #define SIE_CMD_CLEAR_BUFFER (0xF2) |
| elessair | 0:f269e3021894 | 86 | #define SIE_CMD_VALIDATE_BUFFER (0xFA) |
| elessair | 0:f269e3021894 | 87 | |
| elessair | 0:f269e3021894 | 88 | // SIE Device Status register |
| elessair | 0:f269e3021894 | 89 | #define SIE_DS_CON (1<<0) |
| elessair | 0:f269e3021894 | 90 | #define SIE_DS_CON_CH (1<<1) |
| elessair | 0:f269e3021894 | 91 | #define SIE_DS_SUS (1<<2) |
| elessair | 0:f269e3021894 | 92 | #define SIE_DS_SUS_CH (1<<3) |
| elessair | 0:f269e3021894 | 93 | #define SIE_DS_RST (1<<4) |
| elessair | 0:f269e3021894 | 94 | |
| elessair | 0:f269e3021894 | 95 | // SIE Device Set Address register |
| elessair | 0:f269e3021894 | 96 | #define SIE_DSA_DEV_EN (1<<7) |
| elessair | 0:f269e3021894 | 97 | |
| elessair | 0:f269e3021894 | 98 | // SIE Configue Device register |
| elessair | 0:f269e3021894 | 99 | #define SIE_CONF_DEVICE (1<<0) |
| elessair | 0:f269e3021894 | 100 | |
| elessair | 0:f269e3021894 | 101 | // Select Endpoint register |
| elessair | 0:f269e3021894 | 102 | #define SIE_SE_FE (1<<0) |
| elessair | 0:f269e3021894 | 103 | #define SIE_SE_ST (1<<1) |
| elessair | 0:f269e3021894 | 104 | #define SIE_SE_STP (1<<2) |
| elessair | 0:f269e3021894 | 105 | #define SIE_SE_PO (1<<3) |
| elessair | 0:f269e3021894 | 106 | #define SIE_SE_EPN (1<<4) |
| elessair | 0:f269e3021894 | 107 | #define SIE_SE_B_1_FULL (1<<5) |
| elessair | 0:f269e3021894 | 108 | #define SIE_SE_B_2_FULL (1<<6) |
| elessair | 0:f269e3021894 | 109 | |
| elessair | 0:f269e3021894 | 110 | // Set Endpoint Status command |
| elessair | 0:f269e3021894 | 111 | #define SIE_SES_ST (1<<0) |
| elessair | 0:f269e3021894 | 112 | #define SIE_SES_DA (1<<5) |
| elessair | 0:f269e3021894 | 113 | #define SIE_SES_RF_MO (1<<6) |
| elessair | 0:f269e3021894 | 114 | #define SIE_SES_CND_ST (1<<7) |
| elessair | 0:f269e3021894 | 115 | |
| elessair | 0:f269e3021894 | 116 | |
| elessair | 0:f269e3021894 | 117 | USBHAL * USBHAL::instance; |
| elessair | 0:f269e3021894 | 118 | |
| elessair | 0:f269e3021894 | 119 | static volatile int epComplete; |
| elessair | 0:f269e3021894 | 120 | static uint32_t endpointStallState; |
| elessair | 0:f269e3021894 | 121 | |
| elessair | 0:f269e3021894 | 122 | static void SIECommand(uint32_t command) { |
| elessair | 0:f269e3021894 | 123 | // The command phase of a SIE transaction |
| elessair | 0:f269e3021894 | 124 | LPC_USB->USBDevIntClr = CCEMPTY; |
| elessair | 0:f269e3021894 | 125 | LPC_USB->USBCmdCode = SIE_CMD_CODE(SIE_COMMAND, command); |
| elessair | 0:f269e3021894 | 126 | while (!(LPC_USB->USBDevIntSt & CCEMPTY)); |
| elessair | 0:f269e3021894 | 127 | } |
| elessair | 0:f269e3021894 | 128 | |
| elessair | 0:f269e3021894 | 129 | static void SIEWriteData(uint8_t data) { |
| elessair | 0:f269e3021894 | 130 | // The data write phase of a SIE transaction |
| elessair | 0:f269e3021894 | 131 | LPC_USB->USBDevIntClr = CCEMPTY; |
| elessair | 0:f269e3021894 | 132 | LPC_USB->USBCmdCode = SIE_CMD_CODE(SIE_WRITE, data); |
| elessair | 0:f269e3021894 | 133 | while (!(LPC_USB->USBDevIntSt & CCEMPTY)); |
| elessair | 0:f269e3021894 | 134 | } |
| elessair | 0:f269e3021894 | 135 | |
| elessair | 0:f269e3021894 | 136 | static uint8_t SIEReadData(uint32_t command) { |
| elessair | 0:f269e3021894 | 137 | // The data read phase of a SIE transaction |
| elessair | 0:f269e3021894 | 138 | LPC_USB->USBDevIntClr = CDFULL; |
| elessair | 0:f269e3021894 | 139 | LPC_USB->USBCmdCode = SIE_CMD_CODE(SIE_READ, command); |
| elessair | 0:f269e3021894 | 140 | while (!(LPC_USB->USBDevIntSt & CDFULL)); |
| elessair | 0:f269e3021894 | 141 | return (uint8_t)LPC_USB->USBCmdData; |
| elessair | 0:f269e3021894 | 142 | } |
| elessair | 0:f269e3021894 | 143 | |
| elessair | 0:f269e3021894 | 144 | static void SIEsetDeviceStatus(uint8_t status) { |
| elessair | 0:f269e3021894 | 145 | // Write SIE device status register |
| elessair | 0:f269e3021894 | 146 | SIECommand(SIE_CMD_SET_DEVICE_STATUS); |
| elessair | 0:f269e3021894 | 147 | SIEWriteData(status); |
| elessair | 0:f269e3021894 | 148 | } |
| elessair | 0:f269e3021894 | 149 | |
| elessair | 0:f269e3021894 | 150 | static uint8_t SIEgetDeviceStatus(void) { |
| elessair | 0:f269e3021894 | 151 | // Read SIE device status register |
| elessair | 0:f269e3021894 | 152 | SIECommand(SIE_CMD_GET_DEVICE_STATUS); |
| elessair | 0:f269e3021894 | 153 | return SIEReadData(SIE_CMD_GET_DEVICE_STATUS); |
| elessair | 0:f269e3021894 | 154 | } |
| elessair | 0:f269e3021894 | 155 | |
| elessair | 0:f269e3021894 | 156 | void SIEsetAddress(uint8_t address) { |
| elessair | 0:f269e3021894 | 157 | // Write SIE device address register |
| elessair | 0:f269e3021894 | 158 | SIECommand(SIE_CMD_SET_ADDRESS); |
| elessair | 0:f269e3021894 | 159 | SIEWriteData((address & 0x7f) | SIE_DSA_DEV_EN); |
| elessair | 0:f269e3021894 | 160 | } |
| elessair | 0:f269e3021894 | 161 | |
| elessair | 0:f269e3021894 | 162 | static uint8_t SIEselectEndpoint(uint8_t endpoint) { |
| elessair | 0:f269e3021894 | 163 | // SIE select endpoint command |
| elessair | 0:f269e3021894 | 164 | SIECommand(SIE_CMD_SELECT_ENDPOINT(endpoint)); |
| elessair | 0:f269e3021894 | 165 | return SIEReadData(SIE_CMD_SELECT_ENDPOINT(endpoint)); |
| elessair | 0:f269e3021894 | 166 | } |
| elessair | 0:f269e3021894 | 167 | |
| elessair | 0:f269e3021894 | 168 | static uint8_t SIEclearBuffer(void) { |
| elessair | 0:f269e3021894 | 169 | // SIE clear buffer command |
| elessair | 0:f269e3021894 | 170 | SIECommand(SIE_CMD_CLEAR_BUFFER); |
| elessair | 0:f269e3021894 | 171 | return SIEReadData(SIE_CMD_CLEAR_BUFFER); |
| elessair | 0:f269e3021894 | 172 | } |
| elessair | 0:f269e3021894 | 173 | |
| elessair | 0:f269e3021894 | 174 | static void SIEvalidateBuffer(void) { |
| elessair | 0:f269e3021894 | 175 | // SIE validate buffer command |
| elessair | 0:f269e3021894 | 176 | SIECommand(SIE_CMD_VALIDATE_BUFFER); |
| elessair | 0:f269e3021894 | 177 | } |
| elessair | 0:f269e3021894 | 178 | |
| elessair | 0:f269e3021894 | 179 | static void SIEsetEndpointStatus(uint8_t endpoint, uint8_t status) { |
| elessair | 0:f269e3021894 | 180 | // SIE set endpoint status command |
| elessair | 0:f269e3021894 | 181 | SIECommand(SIE_CMD_SET_ENDPOINT_STATUS(endpoint)); |
| elessair | 0:f269e3021894 | 182 | SIEWriteData(status); |
| elessair | 0:f269e3021894 | 183 | } |
| elessair | 0:f269e3021894 | 184 | |
| elessair | 0:f269e3021894 | 185 | static uint16_t SIEgetFrameNumber(void) __attribute__ ((unused)); |
| elessair | 0:f269e3021894 | 186 | static uint16_t SIEgetFrameNumber(void) { |
| elessair | 0:f269e3021894 | 187 | // Read current frame number |
| elessair | 0:f269e3021894 | 188 | uint16_t lowByte; |
| elessair | 0:f269e3021894 | 189 | uint16_t highByte; |
| elessair | 0:f269e3021894 | 190 | |
| elessair | 0:f269e3021894 | 191 | SIECommand(SIE_CMD_READ_FRAME_NUMBER); |
| elessair | 0:f269e3021894 | 192 | lowByte = SIEReadData(SIE_CMD_READ_FRAME_NUMBER); |
| elessair | 0:f269e3021894 | 193 | highByte = SIEReadData(SIE_CMD_READ_FRAME_NUMBER); |
| elessair | 0:f269e3021894 | 194 | |
| elessair | 0:f269e3021894 | 195 | return (highByte << 8) | lowByte; |
| elessair | 0:f269e3021894 | 196 | } |
| elessair | 0:f269e3021894 | 197 | |
| elessair | 0:f269e3021894 | 198 | static void SIEconfigureDevice(void) { |
| elessair | 0:f269e3021894 | 199 | // SIE Configure device command |
| elessair | 0:f269e3021894 | 200 | SIECommand(SIE_CMD_CONFIGURE_DEVICE); |
| elessair | 0:f269e3021894 | 201 | SIEWriteData(SIE_CONF_DEVICE); |
| elessair | 0:f269e3021894 | 202 | } |
| elessair | 0:f269e3021894 | 203 | |
| elessair | 0:f269e3021894 | 204 | static void SIEunconfigureDevice(void) { |
| elessair | 0:f269e3021894 | 205 | // SIE Configure device command |
| elessair | 0:f269e3021894 | 206 | SIECommand(SIE_CMD_CONFIGURE_DEVICE); |
| elessair | 0:f269e3021894 | 207 | SIEWriteData(0); |
| elessair | 0:f269e3021894 | 208 | } |
| elessair | 0:f269e3021894 | 209 | |
| elessair | 0:f269e3021894 | 210 | static void SIEconnect(void) { |
| elessair | 0:f269e3021894 | 211 | // Connect USB device |
| elessair | 0:f269e3021894 | 212 | uint8_t status = SIEgetDeviceStatus(); |
| elessair | 0:f269e3021894 | 213 | SIEsetDeviceStatus(status | SIE_DS_CON); |
| elessair | 0:f269e3021894 | 214 | } |
| elessair | 0:f269e3021894 | 215 | |
| elessair | 0:f269e3021894 | 216 | |
| elessair | 0:f269e3021894 | 217 | static void SIEdisconnect(void) { |
| elessair | 0:f269e3021894 | 218 | // Disconnect USB device |
| elessair | 0:f269e3021894 | 219 | uint8_t status = SIEgetDeviceStatus(); |
| elessair | 0:f269e3021894 | 220 | SIEsetDeviceStatus(status & ~SIE_DS_CON); |
| elessair | 0:f269e3021894 | 221 | } |
| elessair | 0:f269e3021894 | 222 | |
| elessair | 0:f269e3021894 | 223 | |
| elessair | 0:f269e3021894 | 224 | static uint8_t selectEndpointClearInterrupt(uint8_t endpoint) { |
| elessair | 0:f269e3021894 | 225 | // Implemented using using EP_INT_CLR. |
| elessair | 0:f269e3021894 | 226 | LPC_USB->USBEpIntClr = EP(endpoint); |
| elessair | 0:f269e3021894 | 227 | while (!(LPC_USB->USBDevIntSt & CDFULL)); |
| elessair | 0:f269e3021894 | 228 | return (uint8_t)LPC_USB->USBCmdData; |
| elessair | 0:f269e3021894 | 229 | } |
| elessair | 0:f269e3021894 | 230 | |
| elessair | 0:f269e3021894 | 231 | |
| elessair | 0:f269e3021894 | 232 | static void enableEndpointEvent(uint8_t endpoint) { |
| elessair | 0:f269e3021894 | 233 | // Enable an endpoint interrupt |
| elessair | 0:f269e3021894 | 234 | LPC_USB->USBEpIntEn |= EP(endpoint); |
| elessair | 0:f269e3021894 | 235 | } |
| elessair | 0:f269e3021894 | 236 | |
| elessair | 0:f269e3021894 | 237 | static void disableEndpointEvent(uint8_t endpoint) __attribute__ ((unused)); |
| elessair | 0:f269e3021894 | 238 | static void disableEndpointEvent(uint8_t endpoint) { |
| elessair | 0:f269e3021894 | 239 | // Disable an endpoint interrupt |
| elessair | 0:f269e3021894 | 240 | LPC_USB->USBEpIntEn &= ~EP(endpoint); |
| elessair | 0:f269e3021894 | 241 | } |
| elessair | 0:f269e3021894 | 242 | |
| elessair | 0:f269e3021894 | 243 | static volatile uint32_t __attribute__((used)) dummyRead; |
| elessair | 0:f269e3021894 | 244 | uint32_t USBHAL::endpointReadcore(uint8_t endpoint, uint8_t *buffer) { |
| elessair | 0:f269e3021894 | 245 | // Read from an OUT endpoint |
| elessair | 0:f269e3021894 | 246 | uint32_t size; |
| elessair | 0:f269e3021894 | 247 | uint32_t i; |
| elessair | 0:f269e3021894 | 248 | uint32_t data = 0; |
| elessair | 0:f269e3021894 | 249 | uint8_t offset; |
| elessair | 0:f269e3021894 | 250 | |
| elessair | 0:f269e3021894 | 251 | LPC_USB->USBCtrl = LOG_ENDPOINT(endpoint) | RD_EN; |
| elessair | 0:f269e3021894 | 252 | while (!(LPC_USB->USBRxPLen & PKT_RDY)); |
| elessair | 0:f269e3021894 | 253 | |
| elessair | 0:f269e3021894 | 254 | size = LPC_USB->USBRxPLen & PKT_LNGTH_MASK; |
| elessair | 0:f269e3021894 | 255 | |
| elessair | 0:f269e3021894 | 256 | offset = 0; |
| elessair | 0:f269e3021894 | 257 | |
| elessair | 0:f269e3021894 | 258 | if (size > 0) { |
| elessair | 0:f269e3021894 | 259 | for (i=0; i<size; i++) { |
| elessair | 0:f269e3021894 | 260 | if (offset==0) { |
| elessair | 0:f269e3021894 | 261 | // Fetch up to four bytes of data as a word |
| elessair | 0:f269e3021894 | 262 | data = LPC_USB->USBRxData; |
| elessair | 0:f269e3021894 | 263 | } |
| elessair | 0:f269e3021894 | 264 | |
| elessair | 0:f269e3021894 | 265 | // extract a byte |
| elessair | 0:f269e3021894 | 266 | *buffer = (data>>offset) & 0xff; |
| elessair | 0:f269e3021894 | 267 | buffer++; |
| elessair | 0:f269e3021894 | 268 | |
| elessair | 0:f269e3021894 | 269 | // move on to the next byte |
| elessair | 0:f269e3021894 | 270 | offset = (offset + 8) % 32; |
| elessair | 0:f269e3021894 | 271 | } |
| elessair | 0:f269e3021894 | 272 | } else { |
| elessair | 0:f269e3021894 | 273 | dummyRead = LPC_USB->USBRxData; |
| elessair | 0:f269e3021894 | 274 | } |
| elessair | 0:f269e3021894 | 275 | |
| elessair | 0:f269e3021894 | 276 | LPC_USB->USBCtrl = 0; |
| elessair | 0:f269e3021894 | 277 | |
| elessair | 0:f269e3021894 | 278 | if ((endpoint >> 1) % 3 || (endpoint >> 1) == 0) { |
| elessair | 0:f269e3021894 | 279 | SIEselectEndpoint(endpoint); |
| elessair | 0:f269e3021894 | 280 | SIEclearBuffer(); |
| elessair | 0:f269e3021894 | 281 | } |
| elessair | 0:f269e3021894 | 282 | |
| elessair | 0:f269e3021894 | 283 | return size; |
| elessair | 0:f269e3021894 | 284 | } |
| elessair | 0:f269e3021894 | 285 | |
| elessair | 0:f269e3021894 | 286 | static void endpointWritecore(uint8_t endpoint, uint8_t *buffer, uint32_t size) { |
| elessair | 0:f269e3021894 | 287 | // Write to an IN endpoint |
| elessair | 0:f269e3021894 | 288 | uint32_t temp, data; |
| elessair | 0:f269e3021894 | 289 | uint8_t offset; |
| elessair | 0:f269e3021894 | 290 | |
| elessair | 0:f269e3021894 | 291 | LPC_USB->USBCtrl = LOG_ENDPOINT(endpoint) | WR_EN; |
| elessair | 0:f269e3021894 | 292 | |
| elessair | 0:f269e3021894 | 293 | LPC_USB->USBTxPLen = size; |
| elessair | 0:f269e3021894 | 294 | offset = 0; |
| elessair | 0:f269e3021894 | 295 | data = 0; |
| elessair | 0:f269e3021894 | 296 | |
| elessair | 0:f269e3021894 | 297 | if (size>0) { |
| elessair | 0:f269e3021894 | 298 | do { |
| elessair | 0:f269e3021894 | 299 | // Fetch next data byte into a word-sized temporary variable |
| elessair | 0:f269e3021894 | 300 | temp = *buffer++; |
| elessair | 0:f269e3021894 | 301 | |
| elessair | 0:f269e3021894 | 302 | // Add to current data word |
| elessair | 0:f269e3021894 | 303 | temp = temp << offset; |
| elessair | 0:f269e3021894 | 304 | data = data | temp; |
| elessair | 0:f269e3021894 | 305 | |
| elessair | 0:f269e3021894 | 306 | // move on to the next byte |
| elessair | 0:f269e3021894 | 307 | offset = (offset + 8) % 32; |
| elessair | 0:f269e3021894 | 308 | size--; |
| elessair | 0:f269e3021894 | 309 | |
| elessair | 0:f269e3021894 | 310 | if ((offset==0) || (size==0)) { |
| elessair | 0:f269e3021894 | 311 | // Write the word to the endpoint |
| elessair | 0:f269e3021894 | 312 | LPC_USB->USBTxData = data; |
| elessair | 0:f269e3021894 | 313 | data = 0; |
| elessair | 0:f269e3021894 | 314 | } |
| elessair | 0:f269e3021894 | 315 | } while (size>0); |
| elessair | 0:f269e3021894 | 316 | } else { |
| elessair | 0:f269e3021894 | 317 | LPC_USB->USBTxData = 0; |
| elessair | 0:f269e3021894 | 318 | } |
| elessair | 0:f269e3021894 | 319 | |
| elessair | 0:f269e3021894 | 320 | // Clear WR_EN to cover zero length packet case |
| elessair | 0:f269e3021894 | 321 | LPC_USB->USBCtrl=0; |
| elessair | 0:f269e3021894 | 322 | |
| elessair | 0:f269e3021894 | 323 | SIEselectEndpoint(endpoint); |
| elessair | 0:f269e3021894 | 324 | SIEvalidateBuffer(); |
| elessair | 0:f269e3021894 | 325 | } |
| elessair | 0:f269e3021894 | 326 | |
| elessair | 0:f269e3021894 | 327 | USBHAL::USBHAL(void) { |
| elessair | 0:f269e3021894 | 328 | // Disable IRQ |
| elessair | 0:f269e3021894 | 329 | NVIC_DisableIRQ(USB_IRQn); |
| elessair | 0:f269e3021894 | 330 | |
| elessair | 0:f269e3021894 | 331 | // fill in callback array |
| elessair | 0:f269e3021894 | 332 | epCallback[0] = &USBHAL::EP1_OUT_callback; |
| elessair | 0:f269e3021894 | 333 | epCallback[1] = &USBHAL::EP1_IN_callback; |
| elessair | 0:f269e3021894 | 334 | epCallback[2] = &USBHAL::EP2_OUT_callback; |
| elessair | 0:f269e3021894 | 335 | epCallback[3] = &USBHAL::EP2_IN_callback; |
| elessair | 0:f269e3021894 | 336 | epCallback[4] = &USBHAL::EP3_OUT_callback; |
| elessair | 0:f269e3021894 | 337 | epCallback[5] = &USBHAL::EP3_IN_callback; |
| elessair | 0:f269e3021894 | 338 | epCallback[6] = &USBHAL::EP4_OUT_callback; |
| elessair | 0:f269e3021894 | 339 | epCallback[7] = &USBHAL::EP4_IN_callback; |
| elessair | 0:f269e3021894 | 340 | epCallback[8] = &USBHAL::EP5_OUT_callback; |
| elessair | 0:f269e3021894 | 341 | epCallback[9] = &USBHAL::EP5_IN_callback; |
| elessair | 0:f269e3021894 | 342 | epCallback[10] = &USBHAL::EP6_OUT_callback; |
| elessair | 0:f269e3021894 | 343 | epCallback[11] = &USBHAL::EP6_IN_callback; |
| elessair | 0:f269e3021894 | 344 | epCallback[12] = &USBHAL::EP7_OUT_callback; |
| elessair | 0:f269e3021894 | 345 | epCallback[13] = &USBHAL::EP7_IN_callback; |
| elessair | 0:f269e3021894 | 346 | epCallback[14] = &USBHAL::EP8_OUT_callback; |
| elessair | 0:f269e3021894 | 347 | epCallback[15] = &USBHAL::EP8_IN_callback; |
| elessair | 0:f269e3021894 | 348 | epCallback[16] = &USBHAL::EP9_OUT_callback; |
| elessair | 0:f269e3021894 | 349 | epCallback[17] = &USBHAL::EP9_IN_callback; |
| elessair | 0:f269e3021894 | 350 | epCallback[18] = &USBHAL::EP10_OUT_callback; |
| elessair | 0:f269e3021894 | 351 | epCallback[19] = &USBHAL::EP10_IN_callback; |
| elessair | 0:f269e3021894 | 352 | epCallback[20] = &USBHAL::EP11_OUT_callback; |
| elessair | 0:f269e3021894 | 353 | epCallback[21] = &USBHAL::EP11_IN_callback; |
| elessair | 0:f269e3021894 | 354 | epCallback[22] = &USBHAL::EP12_OUT_callback; |
| elessair | 0:f269e3021894 | 355 | epCallback[23] = &USBHAL::EP12_IN_callback; |
| elessair | 0:f269e3021894 | 356 | epCallback[24] = &USBHAL::EP13_OUT_callback; |
| elessair | 0:f269e3021894 | 357 | epCallback[25] = &USBHAL::EP13_IN_callback; |
| elessair | 0:f269e3021894 | 358 | epCallback[26] = &USBHAL::EP14_OUT_callback; |
| elessair | 0:f269e3021894 | 359 | epCallback[27] = &USBHAL::EP14_IN_callback; |
| elessair | 0:f269e3021894 | 360 | epCallback[28] = &USBHAL::EP15_OUT_callback; |
| elessair | 0:f269e3021894 | 361 | epCallback[29] = &USBHAL::EP15_IN_callback; |
| elessair | 0:f269e3021894 | 362 | |
| elessair | 0:f269e3021894 | 363 | // Enable power to USB device controller |
| elessair | 0:f269e3021894 | 364 | LPC_SC->PCONP |= PCUSB; |
| elessair | 0:f269e3021894 | 365 | |
| elessair | 0:f269e3021894 | 366 | // Enable USB clocks |
| elessair | 0:f269e3021894 | 367 | LPC_USB->USBClkCtrl |= DEV_CLK_EN | AHB_CLK_EN; |
| elessair | 0:f269e3021894 | 368 | while (LPC_USB->USBClkSt != (DEV_CLK_ON | AHB_CLK_ON)); |
| elessair | 0:f269e3021894 | 369 | |
| elessair | 0:f269e3021894 | 370 | // Configure pins P0.29 and P0.30 to be USB D+ and USB D- |
| elessair | 0:f269e3021894 | 371 | LPC_PINCON->PINSEL1 &= 0xc3ffffff; |
| elessair | 0:f269e3021894 | 372 | LPC_PINCON->PINSEL1 |= 0x14000000; |
| elessair | 0:f269e3021894 | 373 | |
| elessair | 0:f269e3021894 | 374 | // Disconnect USB device |
| elessair | 0:f269e3021894 | 375 | SIEdisconnect(); |
| elessair | 0:f269e3021894 | 376 | |
| elessair | 0:f269e3021894 | 377 | // Configure pin P2.9 to be Connect |
| elessair | 0:f269e3021894 | 378 | LPC_PINCON->PINSEL4 &= 0xfffcffff; |
| elessair | 0:f269e3021894 | 379 | LPC_PINCON->PINSEL4 |= 0x00040000; |
| elessair | 0:f269e3021894 | 380 | |
| elessair | 0:f269e3021894 | 381 | // Connect must be low for at least 2.5uS |
| elessair | 0:f269e3021894 | 382 | wait(0.3); |
| elessair | 0:f269e3021894 | 383 | |
| elessair | 0:f269e3021894 | 384 | // Set the maximum packet size for the control endpoints |
| elessair | 0:f269e3021894 | 385 | realiseEndpoint(EP0IN, MAX_PACKET_SIZE_EP0, 0); |
| elessair | 0:f269e3021894 | 386 | realiseEndpoint(EP0OUT, MAX_PACKET_SIZE_EP0, 0); |
| elessair | 0:f269e3021894 | 387 | |
| elessair | 0:f269e3021894 | 388 | // Attach IRQ |
| elessair | 0:f269e3021894 | 389 | instance = this; |
| elessair | 0:f269e3021894 | 390 | NVIC_SetVector(USB_IRQn, (uint32_t)&_usbisr); |
| elessair | 0:f269e3021894 | 391 | |
| elessair | 0:f269e3021894 | 392 | // Enable interrupts for device events and EP0 |
| elessair | 0:f269e3021894 | 393 | LPC_USB->USBDevIntEn = EP_SLOW | DEV_STAT | FRAME; |
| elessair | 0:f269e3021894 | 394 | enableEndpointEvent(EP0IN); |
| elessair | 0:f269e3021894 | 395 | enableEndpointEvent(EP0OUT); |
| elessair | 0:f269e3021894 | 396 | } |
| elessair | 0:f269e3021894 | 397 | |
| elessair | 0:f269e3021894 | 398 | USBHAL::~USBHAL(void) { |
| elessair | 0:f269e3021894 | 399 | // Ensure device disconnected |
| elessair | 0:f269e3021894 | 400 | SIEdisconnect(); |
| elessair | 0:f269e3021894 | 401 | // Disable USB interrupts |
| elessair | 0:f269e3021894 | 402 | NVIC_DisableIRQ(USB_IRQn); |
| elessair | 0:f269e3021894 | 403 | } |
| elessair | 0:f269e3021894 | 404 | |
| elessair | 0:f269e3021894 | 405 | void USBHAL::connect(void) { |
| elessair | 0:f269e3021894 | 406 | NVIC_EnableIRQ(USB_IRQn); |
| elessair | 0:f269e3021894 | 407 | // Connect USB device |
| elessair | 0:f269e3021894 | 408 | SIEconnect(); |
| elessair | 0:f269e3021894 | 409 | } |
| elessair | 0:f269e3021894 | 410 | |
| elessair | 0:f269e3021894 | 411 | void USBHAL::disconnect(void) { |
| elessair | 0:f269e3021894 | 412 | NVIC_DisableIRQ(USB_IRQn); |
| elessair | 0:f269e3021894 | 413 | // Disconnect USB device |
| elessair | 0:f269e3021894 | 414 | SIEdisconnect(); |
| elessair | 0:f269e3021894 | 415 | } |
| elessair | 0:f269e3021894 | 416 | |
| elessair | 0:f269e3021894 | 417 | void USBHAL::configureDevice(void) { |
| elessair | 0:f269e3021894 | 418 | SIEconfigureDevice(); |
| elessair | 0:f269e3021894 | 419 | } |
| elessair | 0:f269e3021894 | 420 | |
| elessair | 0:f269e3021894 | 421 | void USBHAL::unconfigureDevice(void) { |
| elessair | 0:f269e3021894 | 422 | SIEunconfigureDevice(); |
| elessair | 0:f269e3021894 | 423 | } |
| elessair | 0:f269e3021894 | 424 | |
| elessair | 0:f269e3021894 | 425 | void USBHAL::setAddress(uint8_t address) { |
| elessair | 0:f269e3021894 | 426 | SIEsetAddress(address); |
| elessair | 0:f269e3021894 | 427 | } |
| elessair | 0:f269e3021894 | 428 | |
| elessair | 0:f269e3021894 | 429 | void USBHAL::EP0setup(uint8_t *buffer) { |
| elessair | 0:f269e3021894 | 430 | endpointReadcore(EP0OUT, buffer); |
| elessair | 0:f269e3021894 | 431 | } |
| elessair | 0:f269e3021894 | 432 | |
| elessair | 0:f269e3021894 | 433 | void USBHAL::EP0read(void) { |
| elessair | 0:f269e3021894 | 434 | // Not required |
| elessair | 0:f269e3021894 | 435 | } |
| elessair | 0:f269e3021894 | 436 | |
| elessair | 0:f269e3021894 | 437 | void USBHAL::EP0readStage(void) { |
| elessair | 0:f269e3021894 | 438 | // Not required |
| elessair | 0:f269e3021894 | 439 | } |
| elessair | 0:f269e3021894 | 440 | |
| elessair | 0:f269e3021894 | 441 | uint32_t USBHAL::EP0getReadResult(uint8_t *buffer) { |
| elessair | 0:f269e3021894 | 442 | return endpointReadcore(EP0OUT, buffer); |
| elessair | 0:f269e3021894 | 443 | } |
| elessair | 0:f269e3021894 | 444 | |
| elessair | 0:f269e3021894 | 445 | void USBHAL::EP0write(uint8_t *buffer, uint32_t size) { |
| elessair | 0:f269e3021894 | 446 | endpointWritecore(EP0IN, buffer, size); |
| elessair | 0:f269e3021894 | 447 | } |
| elessair | 0:f269e3021894 | 448 | |
| elessair | 0:f269e3021894 | 449 | void USBHAL::EP0getWriteResult(void) { |
| elessair | 0:f269e3021894 | 450 | // Not required |
| elessair | 0:f269e3021894 | 451 | } |
| elessair | 0:f269e3021894 | 452 | |
| elessair | 0:f269e3021894 | 453 | void USBHAL::EP0stall(void) { |
| elessair | 0:f269e3021894 | 454 | // This will stall both control endpoints |
| elessair | 0:f269e3021894 | 455 | stallEndpoint(EP0OUT); |
| elessair | 0:f269e3021894 | 456 | } |
| elessair | 0:f269e3021894 | 457 | |
| elessair | 0:f269e3021894 | 458 | EP_STATUS USBHAL::endpointRead(uint8_t endpoint, uint32_t maximumSize) { |
| elessair | 0:f269e3021894 | 459 | return EP_PENDING; |
| elessair | 0:f269e3021894 | 460 | } |
| elessair | 0:f269e3021894 | 461 | |
| elessair | 0:f269e3021894 | 462 | EP_STATUS USBHAL::endpointReadResult(uint8_t endpoint, uint8_t * buffer, uint32_t *bytesRead) { |
| elessair | 0:f269e3021894 | 463 | |
| elessair | 0:f269e3021894 | 464 | //for isochronous endpoint, we don't wait an interrupt |
| elessair | 0:f269e3021894 | 465 | if ((endpoint >> 1) % 3 || (endpoint >> 1) == 0) { |
| elessair | 0:f269e3021894 | 466 | if (!(epComplete & EP(endpoint))) |
| elessair | 0:f269e3021894 | 467 | return EP_PENDING; |
| elessair | 0:f269e3021894 | 468 | } |
| elessair | 0:f269e3021894 | 469 | |
| elessair | 0:f269e3021894 | 470 | *bytesRead = endpointReadcore(endpoint, buffer); |
| elessair | 0:f269e3021894 | 471 | epComplete &= ~EP(endpoint); |
| elessair | 0:f269e3021894 | 472 | return EP_COMPLETED; |
| elessair | 0:f269e3021894 | 473 | } |
| elessair | 0:f269e3021894 | 474 | |
| elessair | 0:f269e3021894 | 475 | EP_STATUS USBHAL::endpointWrite(uint8_t endpoint, uint8_t *data, uint32_t size) { |
| elessair | 0:f269e3021894 | 476 | if (getEndpointStallState(endpoint)) { |
| elessair | 0:f269e3021894 | 477 | return EP_STALLED; |
| elessair | 0:f269e3021894 | 478 | } |
| elessair | 0:f269e3021894 | 479 | |
| elessair | 0:f269e3021894 | 480 | epComplete &= ~EP(endpoint); |
| elessair | 0:f269e3021894 | 481 | |
| elessair | 0:f269e3021894 | 482 | endpointWritecore(endpoint, data, size); |
| elessair | 0:f269e3021894 | 483 | return EP_PENDING; |
| elessair | 0:f269e3021894 | 484 | } |
| elessair | 0:f269e3021894 | 485 | |
| elessair | 0:f269e3021894 | 486 | EP_STATUS USBHAL::endpointWriteResult(uint8_t endpoint) { |
| elessair | 0:f269e3021894 | 487 | if (epComplete & EP(endpoint)) { |
| elessair | 0:f269e3021894 | 488 | epComplete &= ~EP(endpoint); |
| elessair | 0:f269e3021894 | 489 | return EP_COMPLETED; |
| elessair | 0:f269e3021894 | 490 | } |
| elessair | 0:f269e3021894 | 491 | |
| elessair | 0:f269e3021894 | 492 | return EP_PENDING; |
| elessair | 0:f269e3021894 | 493 | } |
| elessair | 0:f269e3021894 | 494 | |
| elessair | 0:f269e3021894 | 495 | bool USBHAL::realiseEndpoint(uint8_t endpoint, uint32_t maxPacket, uint32_t flags) { |
| elessair | 0:f269e3021894 | 496 | // Realise an endpoint |
| elessair | 0:f269e3021894 | 497 | LPC_USB->USBDevIntClr = EP_RLZED; |
| elessair | 0:f269e3021894 | 498 | LPC_USB->USBReEp |= EP(endpoint); |
| elessair | 0:f269e3021894 | 499 | LPC_USB->USBEpInd = endpoint; |
| elessair | 0:f269e3021894 | 500 | LPC_USB->USBMaxPSize = maxPacket; |
| elessair | 0:f269e3021894 | 501 | |
| elessair | 0:f269e3021894 | 502 | while (!(LPC_USB->USBDevIntSt & EP_RLZED)); |
| elessair | 0:f269e3021894 | 503 | LPC_USB->USBDevIntClr = EP_RLZED; |
| elessair | 0:f269e3021894 | 504 | |
| elessair | 0:f269e3021894 | 505 | // Clear stall state |
| elessair | 0:f269e3021894 | 506 | endpointStallState &= ~EP(endpoint); |
| elessair | 0:f269e3021894 | 507 | |
| elessair | 0:f269e3021894 | 508 | enableEndpointEvent(endpoint); |
| elessair | 0:f269e3021894 | 509 | return true; |
| elessair | 0:f269e3021894 | 510 | } |
| elessair | 0:f269e3021894 | 511 | |
| elessair | 0:f269e3021894 | 512 | void USBHAL::stallEndpoint(uint8_t endpoint) { |
| elessair | 0:f269e3021894 | 513 | // Stall an endpoint |
| elessair | 0:f269e3021894 | 514 | if ( (endpoint==EP0IN) || (endpoint==EP0OUT) ) { |
| elessair | 0:f269e3021894 | 515 | // Conditionally stall both control endpoints |
| elessair | 0:f269e3021894 | 516 | SIEsetEndpointStatus(EP0OUT, SIE_SES_CND_ST); |
| elessair | 0:f269e3021894 | 517 | } else { |
| elessair | 0:f269e3021894 | 518 | SIEsetEndpointStatus(endpoint, SIE_SES_ST); |
| elessair | 0:f269e3021894 | 519 | |
| elessair | 0:f269e3021894 | 520 | // Update stall state |
| elessair | 0:f269e3021894 | 521 | endpointStallState |= EP(endpoint); |
| elessair | 0:f269e3021894 | 522 | } |
| elessair | 0:f269e3021894 | 523 | } |
| elessair | 0:f269e3021894 | 524 | |
| elessair | 0:f269e3021894 | 525 | void USBHAL::unstallEndpoint(uint8_t endpoint) { |
| elessair | 0:f269e3021894 | 526 | // Unstall an endpoint. The endpoint will also be reinitialised |
| elessair | 0:f269e3021894 | 527 | SIEsetEndpointStatus(endpoint, 0); |
| elessair | 0:f269e3021894 | 528 | |
| elessair | 0:f269e3021894 | 529 | // Update stall state |
| elessair | 0:f269e3021894 | 530 | endpointStallState &= ~EP(endpoint); |
| elessair | 0:f269e3021894 | 531 | } |
| elessair | 0:f269e3021894 | 532 | |
| elessair | 0:f269e3021894 | 533 | bool USBHAL::getEndpointStallState(uint8_t endpoint) { |
| elessair | 0:f269e3021894 | 534 | // Returns true if endpoint stalled |
| elessair | 0:f269e3021894 | 535 | return endpointStallState & EP(endpoint); |
| elessair | 0:f269e3021894 | 536 | } |
| elessair | 0:f269e3021894 | 537 | |
| elessair | 0:f269e3021894 | 538 | void USBHAL::remoteWakeup(void) { |
| elessair | 0:f269e3021894 | 539 | // Remote wakeup |
| elessair | 0:f269e3021894 | 540 | uint8_t status; |
| elessair | 0:f269e3021894 | 541 | |
| elessair | 0:f269e3021894 | 542 | // Enable USB clocks |
| elessair | 0:f269e3021894 | 543 | LPC_USB->USBClkCtrl |= DEV_CLK_EN | AHB_CLK_EN; |
| elessair | 0:f269e3021894 | 544 | while (LPC_USB->USBClkSt != (DEV_CLK_ON | AHB_CLK_ON)); |
| elessair | 0:f269e3021894 | 545 | |
| elessair | 0:f269e3021894 | 546 | status = SIEgetDeviceStatus(); |
| elessair | 0:f269e3021894 | 547 | SIEsetDeviceStatus(status & ~SIE_DS_SUS); |
| elessair | 0:f269e3021894 | 548 | } |
| elessair | 0:f269e3021894 | 549 | |
| elessair | 0:f269e3021894 | 550 | void USBHAL::_usbisr(void) { |
| elessair | 0:f269e3021894 | 551 | instance->usbisr(); |
| elessair | 0:f269e3021894 | 552 | } |
| elessair | 0:f269e3021894 | 553 | |
| elessair | 0:f269e3021894 | 554 | |
| elessair | 0:f269e3021894 | 555 | void USBHAL::usbisr(void) { |
| elessair | 0:f269e3021894 | 556 | uint8_t devStat; |
| elessair | 0:f269e3021894 | 557 | |
| elessair | 0:f269e3021894 | 558 | if (LPC_USB->USBDevIntSt & FRAME) { |
| elessair | 0:f269e3021894 | 559 | // Start of frame event |
| elessair | 0:f269e3021894 | 560 | SOF(SIEgetFrameNumber()); |
| elessair | 0:f269e3021894 | 561 | // Clear interrupt status flag |
| elessair | 0:f269e3021894 | 562 | LPC_USB->USBDevIntClr = FRAME; |
| elessair | 0:f269e3021894 | 563 | } |
| elessair | 0:f269e3021894 | 564 | |
| elessair | 0:f269e3021894 | 565 | if (LPC_USB->USBDevIntSt & DEV_STAT) { |
| elessair | 0:f269e3021894 | 566 | // Device Status interrupt |
| elessair | 0:f269e3021894 | 567 | // Must clear the interrupt status flag before reading the device status from the SIE |
| elessair | 0:f269e3021894 | 568 | LPC_USB->USBDevIntClr = DEV_STAT; |
| elessair | 0:f269e3021894 | 569 | |
| elessair | 0:f269e3021894 | 570 | // Read device status from SIE |
| elessair | 0:f269e3021894 | 571 | devStat = SIEgetDeviceStatus(); |
| elessair | 0:f269e3021894 | 572 | //printf("devStat: %d\r\n", devStat); |
| elessair | 0:f269e3021894 | 573 | |
| elessair | 0:f269e3021894 | 574 | if (devStat & SIE_DS_SUS_CH) { |
| elessair | 0:f269e3021894 | 575 | // Suspend status changed |
| elessair | 0:f269e3021894 | 576 | if((devStat & SIE_DS_SUS) != 0) { |
| elessair | 0:f269e3021894 | 577 | suspendStateChanged(0); |
| elessair | 0:f269e3021894 | 578 | } |
| elessair | 0:f269e3021894 | 579 | } |
| elessair | 0:f269e3021894 | 580 | |
| elessair | 0:f269e3021894 | 581 | if (devStat & SIE_DS_RST) { |
| elessair | 0:f269e3021894 | 582 | // Bus reset |
| elessair | 0:f269e3021894 | 583 | if((devStat & SIE_DS_SUS) == 0) { |
| elessair | 0:f269e3021894 | 584 | suspendStateChanged(1); |
| elessair | 0:f269e3021894 | 585 | } |
| elessair | 0:f269e3021894 | 586 | busReset(); |
| elessair | 0:f269e3021894 | 587 | } |
| elessair | 0:f269e3021894 | 588 | } |
| elessair | 0:f269e3021894 | 589 | |
| elessair | 0:f269e3021894 | 590 | if (LPC_USB->USBDevIntSt & EP_SLOW) { |
| elessair | 0:f269e3021894 | 591 | // (Slow) Endpoint Interrupt |
| elessair | 0:f269e3021894 | 592 | |
| elessair | 0:f269e3021894 | 593 | // Process each endpoint interrupt |
| elessair | 0:f269e3021894 | 594 | if (LPC_USB->USBEpIntSt & EP(EP0OUT)) { |
| elessair | 0:f269e3021894 | 595 | if (selectEndpointClearInterrupt(EP0OUT) & SIE_SE_STP) { |
| elessair | 0:f269e3021894 | 596 | // this is a setup packet |
| elessair | 0:f269e3021894 | 597 | EP0setupCallback(); |
| elessair | 0:f269e3021894 | 598 | } else { |
| elessair | 0:f269e3021894 | 599 | EP0out(); |
| elessair | 0:f269e3021894 | 600 | } |
| elessair | 0:f269e3021894 | 601 | LPC_USB->USBDevIntClr = EP_SLOW; |
| elessair | 0:f269e3021894 | 602 | } |
| elessair | 0:f269e3021894 | 603 | |
| elessair | 0:f269e3021894 | 604 | if (LPC_USB->USBEpIntSt & EP(EP0IN)) { |
| elessair | 0:f269e3021894 | 605 | selectEndpointClearInterrupt(EP0IN); |
| elessair | 0:f269e3021894 | 606 | LPC_USB->USBDevIntClr = EP_SLOW; |
| elessair | 0:f269e3021894 | 607 | EP0in(); |
| elessair | 0:f269e3021894 | 608 | } |
| elessair | 0:f269e3021894 | 609 | |
| elessair | 0:f269e3021894 | 610 | for (uint8_t num = 2; num < 16*2; num++) { |
| elessair | 0:f269e3021894 | 611 | if (LPC_USB->USBEpIntSt & EP(num)) { |
| elessair | 0:f269e3021894 | 612 | selectEndpointClearInterrupt(num); |
| elessair | 0:f269e3021894 | 613 | epComplete |= EP(num); |
| elessair | 0:f269e3021894 | 614 | LPC_USB->USBDevIntClr = EP_SLOW; |
| elessair | 0:f269e3021894 | 615 | if ((instance->*(epCallback[num - 2]))()) { |
| elessair | 0:f269e3021894 | 616 | epComplete &= ~EP(num); |
| elessair | 0:f269e3021894 | 617 | } |
| elessair | 0:f269e3021894 | 618 | } |
| elessair | 0:f269e3021894 | 619 | } |
| elessair | 0:f269e3021894 | 620 | } |
| elessair | 0:f269e3021894 | 621 | } |
| elessair | 0:f269e3021894 | 622 | |
| elessair | 0:f269e3021894 | 623 | #endif |