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Sansa Connect: Working USB Mass Storage

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Acknowledge SYS_USB_CONNECTED in all queues so USB task can gain
exclusive access to the storage.

Reduce CPPI requeue timeout to speed up disk access.

Change-Id: I322aae4cac679696bb8186ccacf838a18f0715e9
This commit is contained in:
Tomasz Moń 2021-06-09 20:50:30 +02:00
parent a11c88e0df
commit 163e3507f8
No known key found for this signature in database
GPG key ID: 92BA8820D4D517C8
5 changed files with 59 additions and 31 deletions
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8
firmware/target/arm/tms320dm320/sansa-connect/avr-sansaconnect.c
View file

@ -374,7 +374,13 @@ void btn_thread(void)
while (1)
{
queue_wait(&btn_queue, &ev);
if (ev.id == SYS_USB_CONNECTED)
{
/* Allow USB to gain exclusive storage access */
usb_acknowledge(SYS_USB_CONNECTED_ACK);
}
/* Ignore all messages except BTN_INTERRUPT */
if (ev.id != BTN_INTERRUPT)
continue;

4
firmware/target/arm/tms320dm320/sansa-connect/tnetv105_usb_drv.c
View file

@ -1034,7 +1034,7 @@ static int cppi_timeout_cb(struct timeout *tmo)
int flags = disable_irq_save();
bool requeue = tnetv_handle_cppi();
restore_irq(flags);
return requeue ? HZ/10 : 0;
return requeue ? 1 : 0;
}
void VLYNQ(void) __attribute__ ((section(".icode")));
@ -1205,7 +1205,7 @@ void VLYNQ(void)
if (tnetv_handle_cppi())
{
timeout_register(&cppi_timeout, cppi_timeout_cb, HZ/10, 0);
timeout_register(&cppi_timeout, cppi_timeout_cb, 1, 0);
}
}
}

14
firmware/target/arm/tms320dm320/sdmmc-dm320.c
View file

@ -781,20 +781,10 @@ int sd_read_sectors(IF_MD(int card_no,) unsigned long start, int incount,
int sd_write_sectors(IF_MD(int card_no,) unsigned long start, int count,
const void* outbuf)
{
#ifndef BOOTLOADER
#ifndef HAVE_MULTIDRIVE
const int card_no = 0;
#endif
return sd_transfer_sectors(card_no, start, count, (void*)outbuf, true);
#else /* we don't need write support in bootloader */
#ifdef HAVE_MULTIDRIVE
(void)card_no;
#endif
(void)start;
(void)count;
(void)outbuf;
return 0;
#endif
}
int sd_init(void)
@ -809,9 +799,7 @@ int sd_init(void)
mutex_lock(&sd_mtx);
#ifndef BOOTLOADER
enable_controller(false);
#endif
/* based on linux/drivers/mmc/dm320mmc.c
Copyright (C) 2006 ZSI, All Rights Reserved.
@ -859,8 +847,6 @@ int sd_init(void)
#endif
#endif
sd_select_device(1);
/* Disable Memory Card CLK - it is enabled on demand by TMS320DM320 */
bitclr16(&IO_MMC_MEM_CLK_CONTROL, (1 << 8));
mutex_unlock(&sd_mtx);