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| 1 | +/* |
| 2 | + * The MIT License (MIT) |
| 3 | + * |
| 4 | + * Copyright (c) 2019 Ha Thach (tinyusb.org) |
| 5 | + * |
| 6 | + * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 7 | + * of this software and associated documentation files (the "Software"), to deal |
| 8 | + * in the Software without restriction, including without limitation the rights |
| 9 | + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 10 | + * copies of the Software, and to permit persons to whom the Software is |
| 11 | + * furnished to do so, subject to the following conditions: |
| 12 | + * |
| 13 | + * The above copyright notice and this permission notice shall be included in |
| 14 | + * all copies or substantial portions of the Software. |
| 15 | + * |
| 16 | + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 19 | + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 20 | + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 21 | + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| 22 | + * THE SOFTWARE. |
| 23 | + * |
| 24 | + * This file is part of the TinyUSB stack. |
| 25 | + */ |
| 26 | +#ifdef __RTTHREAD__ |
| 27 | +#include <tusb.h> |
| 28 | +#include <stdint.h> |
| 29 | + |
| 30 | +#include <board.h> |
| 31 | +#include <rtdevice.h> |
| 32 | + |
| 33 | +static bool ejected = false; |
| 34 | +static rt_device_t flash_device; |
| 35 | +static struct rt_device_blk_geometry blk_geom; |
| 36 | + |
| 37 | +#ifdef __CC_ARM |
| 38 | +uint16_t __builtin_bswap16(uint16_t x) |
| 39 | +{ |
| 40 | + return (x << 8) | (x >> 8); |
| 41 | +} |
| 42 | +#endif |
| 43 | + |
| 44 | +void tud_msc_inquiry_cb(uint8_t lun, uint8_t vendor_id[8], uint8_t product_id[16], uint8_t product_rev[4]) |
| 45 | +{ |
| 46 | + (void) lun; |
| 47 | + |
| 48 | + const char vid[] = PKG_TINYUSB_DEVICE_MSC_VID; |
| 49 | + const char pid[] = PKG_TINYUSB_DEVICE_MSC_PID; |
| 50 | + const char rev[] = PKG_TINYUSB_DEVICE_MSC_REV; |
| 51 | + |
| 52 | + memcpy(vendor_id, vid, strlen(vid)); |
| 53 | + memcpy(product_id, pid, strlen(pid)); |
| 54 | + memcpy(product_rev, rev, strlen(rev)); |
| 55 | +} |
| 56 | + |
| 57 | +bool tud_msc_test_unit_ready_cb(uint8_t lun) |
| 58 | +{ |
| 59 | + (void) lun; |
| 60 | + |
| 61 | + if (ejected) |
| 62 | + { |
| 63 | + tud_msc_set_sense(lun, SCSI_SENSE_NOT_READY, 0x3a, 0x00); |
| 64 | + return false; |
| 65 | + } |
| 66 | + |
| 67 | + if (flash_device == NULL) |
| 68 | + { |
| 69 | + flash_device = rt_device_find(PKG_TINYUSB_DEVICE_MSC_NAME); |
| 70 | + } |
| 71 | + if (flash_device != NULL) |
| 72 | + { |
| 73 | + static uint8_t open_flg = 0; |
| 74 | + if (!open_flg) |
| 75 | + { |
| 76 | + open_flg = 1; |
| 77 | + rt_device_open(flash_device, 0); |
| 78 | + } |
| 79 | + |
| 80 | + rt_device_control(flash_device, RT_DEVICE_CTRL_BLK_GETGEOME, &blk_geom); |
| 81 | + return true; |
| 82 | + } |
| 83 | + |
| 84 | + return false; |
| 85 | +} |
| 86 | + |
| 87 | +void tud_msc_capacity_cb(uint8_t lun, uint32_t *block_count, uint16_t *block_size) |
| 88 | +{ |
| 89 | + (void) lun; |
| 90 | + |
| 91 | + *block_count = blk_geom.sector_count; |
| 92 | + *block_size = blk_geom.bytes_per_sector; |
| 93 | +} |
| 94 | + |
| 95 | +bool tud_msc_start_stop_cb(uint8_t lun, uint8_t power_condition, bool start, bool load_eject) |
| 96 | +{ |
| 97 | + (void) lun; |
| 98 | + (void) power_condition; |
| 99 | + |
| 100 | + if (load_eject) |
| 101 | + { |
| 102 | + if (start) |
| 103 | + { |
| 104 | + ejected = false; |
| 105 | + } else { |
| 106 | + // unload disk storage |
| 107 | + ejected = true; |
| 108 | + } |
| 109 | + } |
| 110 | + |
| 111 | + return true; |
| 112 | +} |
| 113 | + |
| 114 | +int32_t tud_msc_read10_cb(uint8_t lun, uint32_t lba, uint32_t offset, void *buffer, uint32_t bufsize) |
| 115 | +{ |
| 116 | + (void) lun; |
| 117 | + (void) offset; |
| 118 | + (void) bufsize; |
| 119 | + |
| 120 | + return (int32_t) rt_device_read(flash_device, (rt_off_t) lba, buffer, 1) * blk_geom.bytes_per_sector; |
| 121 | +} |
| 122 | + |
| 123 | +int32_t tud_msc_write10_cb(uint8_t lun, uint32_t lba, uint32_t offset, uint8_t *buffer, uint32_t bufsize) |
| 124 | +{ |
| 125 | + (void) lun; |
| 126 | + (void) offset; |
| 127 | + (void) bufsize; |
| 128 | + |
| 129 | + return (int32_t) rt_device_write(flash_device, (rt_off_t) lba, buffer, 1) * blk_geom.bytes_per_sector; |
| 130 | +} |
| 131 | + |
| 132 | +int32_t tud_msc_scsi_cb(uint8_t lun, uint8_t const scsi_cmd[16], void *buffer, uint16_t bufsize) |
| 133 | +{ |
| 134 | + void const *response = NULL; |
| 135 | + uint16_t resplen = 0; |
| 136 | + |
| 137 | + // most scsi handled is input |
| 138 | + bool in_xfer = true; |
| 139 | + |
| 140 | + switch (scsi_cmd[0]) |
| 141 | + { |
| 142 | + case SCSI_CMD_PREVENT_ALLOW_MEDIUM_REMOVAL: |
| 143 | + // Host is about to read/write etc ... better not to disconnect disk |
| 144 | + resplen = 0; |
| 145 | + break; |
| 146 | + |
| 147 | + default: |
| 148 | + // Set Sense = Invalid Command Operation |
| 149 | + tud_msc_set_sense(lun, SCSI_SENSE_ILLEGAL_REQUEST, 0x20, 0x00); |
| 150 | + |
| 151 | + // negative means error -> tinyusb could stall and/or response with failed status |
| 152 | + resplen = -1; |
| 153 | + break; |
| 154 | + } |
| 155 | + |
| 156 | + // return resplen must not larger than bufsize |
| 157 | + if (resplen > bufsize) resplen = bufsize; |
| 158 | + |
| 159 | + if (response && (resplen > 0)) |
| 160 | + { |
| 161 | + if (in_xfer) |
| 162 | + { |
| 163 | + memcpy(buffer, response, resplen); |
| 164 | + } else { |
| 165 | + // SCSI output |
| 166 | + } |
| 167 | + } |
| 168 | + |
| 169 | + return resplen; |
| 170 | +} |
| 171 | +#endif /*__RTTHREAD__*/ |
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