Merge pull request #2599 from Rbb666/rtthread

[osal]Add rt-thread script support.

1 files changed, 171 insertions, 0 deletions

diff --git a/lib/rt-thread/port/msc_device_port.c b/lib/rt-thread/port/msc_device_port.c
new file mode 100644
index 000000000..c7e8c508e
--- /dev/null
+++ b/lib/rt-thread/port/msc_device_port.c
@@ -0,0 +1,171 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Ha Thach (tinyusb.org)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * This file is part of the TinyUSB stack.
+ */
+#ifdef __RTTHREAD__
+#include <tusb.h>
+#include <stdint.h>
+
+#include <board.h>
+#include <rtdevice.h>
+
+static bool ejected = false;
+static rt_device_t flash_device;
+static struct rt_device_blk_geometry blk_geom;
+
+#ifdef __CC_ARM
+uint16_t __builtin_bswap16(uint16_t x)
+{
+    return (x << 8) | (x >> 8);
+}
+#endif
+
+void tud_msc_inquiry_cb(uint8_t lun, uint8_t vendor_id[8], uint8_t product_id[16], uint8_t product_rev[4])
+{
+    (void) lun;
+
+    const char vid[] = PKG_TINYUSB_DEVICE_MSC_VID;
+    const char pid[] = PKG_TINYUSB_DEVICE_MSC_PID;
+    const char rev[] = PKG_TINYUSB_DEVICE_MSC_REV;
+
+    memcpy(vendor_id, vid, strlen(vid));
+    memcpy(product_id, pid, strlen(pid));
+    memcpy(product_rev, rev, strlen(rev));
+}
+
+bool tud_msc_test_unit_ready_cb(uint8_t lun)
+{
+    (void) lun;
+
+    if (ejected)
+    {
+        tud_msc_set_sense(lun, SCSI_SENSE_NOT_READY, 0x3a, 0x00);
+        return false;
+    }
+
+    if (flash_device == NULL)
+    {
+        flash_device = rt_device_find(PKG_TINYUSB_DEVICE_MSC_NAME);
+    }
+    if (flash_device != NULL)
+    {
+        static uint8_t open_flg = 0;
+        if (!open_flg)
+        {
+            open_flg = 1;
+            rt_device_open(flash_device, 0);
+        }
+
+        rt_device_control(flash_device, RT_DEVICE_CTRL_BLK_GETGEOME, &blk_geom);
+        return true;
+    }
+
+    return false;
+}
+
+void tud_msc_capacity_cb(uint8_t lun, uint32_t *block_count, uint16_t *block_size)
+{
+    (void) lun;
+
+    *block_count = blk_geom.sector_count;
+    *block_size  = blk_geom.bytes_per_sector;
+}
+
+bool tud_msc_start_stop_cb(uint8_t lun, uint8_t power_condition, bool start, bool load_eject)
+{
+    (void) lun;
+    (void) power_condition;
+
+    if (load_eject)
+    {
+        if (start)
+        {
+            ejected = false;
+        } else {
+            // unload disk storage
+            ejected = true;
+        }
+    }
+
+    return true;
+}
+
+int32_t tud_msc_read10_cb(uint8_t lun, uint32_t lba, uint32_t offset, void *buffer, uint32_t bufsize)
+{
+    (void) lun;
+    (void) offset;
+    (void) bufsize;
+
+    return (int32_t) rt_device_read(flash_device, (rt_off_t) lba, buffer, 1) * blk_geom.bytes_per_sector;
+}
+
+int32_t tud_msc_write10_cb(uint8_t lun, uint32_t lba, uint32_t offset, uint8_t *buffer, uint32_t bufsize)
+{
+    (void) lun;
+    (void) offset;
+    (void) bufsize;
+
+    return (int32_t) rt_device_write(flash_device, (rt_off_t) lba, buffer, 1) * blk_geom.bytes_per_sector;
+}
+
+int32_t tud_msc_scsi_cb(uint8_t lun, uint8_t const scsi_cmd[16], void *buffer, uint16_t bufsize)
+{
+    void const *response = NULL;
+    uint16_t resplen = 0;
+
+    // most scsi handled is input
+    bool in_xfer = true;
+
+    switch (scsi_cmd[0])
+    {
+        case SCSI_CMD_PREVENT_ALLOW_MEDIUM_REMOVAL:
+            // Host is about to read/write etc ... better not to disconnect disk
+            resplen = 0;
+            break;
+
+        default:
+            // Set Sense = Invalid Command Operation
+            tud_msc_set_sense(lun, SCSI_SENSE_ILLEGAL_REQUEST, 0x20, 0x00);
+
+            // negative means error -> tinyusb could stall and/or response with failed status
+            resplen = -1;
+            break;
+    }
+
+    // return resplen must not larger than bufsize
+    if (resplen > bufsize) resplen = bufsize;
+
+    if (response && (resplen > 0))
+    {
+        if (in_xfer)
+        {
+            memcpy(buffer, response, resplen);
+        } else {
+            // SCSI output
+        }
+    }
+
+    return resplen;
+}
+#endif /*__RTTHREAD__*/