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Unrevert the revert below, in preparation for PR #425 (tannewt/circuitpython, align_usb branch).

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Roll back to b4fc464a4dd260bae9c2a49f996ffeb96268228d:

git revert -m 1 -n b82cfcb064e7a01548abcde5983b6d4be6fd9e9c
git revert -n 0e6928b087805f95520de34647d2836278fcdbf9
git revert -n bfe7e055e9b1dac0411fe975fdf2412029f03b33
git commit
This commit is contained in:
Dan Halbert 2017-11-09 16:23:59 -05:00
parent b82cfcb064
commit 609ebe5cad
1 changed files with 5 additions and 6 deletions
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11
ports/atmel-samd/usb_mass_storage.c
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@ -63,10 +63,10 @@ static fs_user_mount_t* get_vfs(int lun) {
/* Inquiry Information */
// This is designed to handle the common case where we have an internal file
// system and an optional SD card.
COMPILER_ALIGNED(4) static uint8_t inquiry_info[2][36];
static uint8_t inquiry_info[2][36];
/* Capacities of Disk */
COMPILER_ALIGNED(4) static uint8_t format_capa[2][8];
static uint8_t format_capa[2][8];
/**
* \brief Eject Disk
@ -259,6 +259,9 @@ int32_t usb_msc_xfer_done(uint8_t lun) {
if (active_read) {
active_addr += 1;
active_nblocks--;
if (active_nblocks == 0) {
active_read = false;
}
}
if (active_write) {
@ -272,10 +275,6 @@ int32_t usb_msc_xfer_done(uint8_t lun) {
// The start_read callback begins a read transaction which we accept but delay our response until the "main thread" calls usb_msc_background. Once it does, we read immediately from the drive into our cache and trigger the USB DMA to output the sector. Once the sector is transmitted, xfer_done will be called.
void usb_msc_background(void) {
if (active_read && !usb_busy) {
if (active_nblocks == 0) {
active_read = false;
return;
}
fs_user_mount_t * vfs = get_vfs(active_lun);
disk_read(vfs, sector_buffer, active_addr, 1);
// TODO(tannewt): Check the read result.