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dfu app-detach support

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This commit is contained in:
Olaf Rempel 2008-03-04 22:58:59 +01:00
parent 7f54c86b7c
commit a81d25a84d
2 changed files with 37 additions and 5 deletions
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14
include/at91_udp.h
View File

@ -1,6 +1,20 @@
#ifndef AT91_UDP_H_
#define AT91_UDP_H_
#include <stdint.h>
void ep_transfer_send(uint32_t ep,
char *data,
uint32_t length,
void (*complete_cb)(void));
void ep_transfer_receive(uint32_t ep,
char *data,
uint32_t length,
void (*complete_cb)(void));
void ep_send_stall(uint32_t ep);
void at91_udp_init(void);
#endif /*AT91_UDP_H_*/

28
src/at91_udp.c
View File

@ -185,7 +185,16 @@ static const struct my_config cfg_descriptor = {
},
};
static const struct dfu_status dfu_status = {
/* not const! */
static struct usb_cdc_line_coding cdc_line_coding = {
.dwDTERate = 9600,
.bCharFormat = USB_CDC_1_STOP_BITS,
.bParityType = USB_CDC_NO_PARITY,
.bDataBits = 8,
};
/* not const! */
static struct dfu_status dfu_status = {
.bStatus = DFU_STATUS_OK,
.bState = DFU_STATE_appIDLE,
};
@ -389,6 +398,7 @@ static void ep_handle_ctrlrequest(struct usb_ctrlrequest *req)
// TODO: follow current_interface
switch (req->bRequest) {
case USB_REQ_DFU_DETACH: /* 0x00 */
dfu_status.bStatus = DFU_STATE_appDETACH;
ep_transfer_send(0, NULL, 0, NULL);
break;
@ -397,7 +407,11 @@ static void ep_handle_ctrlrequest(struct usb_ctrlrequest *req)
break;
case USB_CDC_REQ_SET_LINE_CODING: /* 0x20 */
/* TODO: read 7 bytes to dummy buffer */
ep_transfer_receive(0, (char *)&cdc_line_coding, sizeof(cdc_line_coding), NULL);
break;
case USB_CDC_REQ_GET_LINE_CODING: /* 0x21 */
ep_transfer_send(0, (char *)&cdc_line_coding, sizeof(cdc_line_coding), NULL);
break;
case USB_CDC_REQ_SET_CONTROL_LINE_STATE: /* 0x22 */
@ -511,9 +525,7 @@ static void udp_handle_ep(uint32_t ep)
/* test again */
if (transfer->length == transfer->curpos) {
ctx->flags &= ~CTX_OUT;
if (transfer->complete_cb)
transfer->complete_cb();
transfer_cb = transfer->complete_cb;
}
}
@ -564,6 +576,12 @@ static void udp_isr(void)
udp->UDP_IDR = AT91C_UDP_EPINT1 | AT91C_UDP_EPINT2 | AT91C_UDP_EPINT3 |
AT91C_UDP_RXSUSP | AT91C_UDP_RXRSM | AT91C_UDP_SOFINT |
AT91C_UDP_WAKEUP;
if (dfu_status.bStatus == DFU_STATE_appDETACH) {
void (* bootloader)(void) = (void *)0x13c000;
bootloader();
while (1);
}
}
/* Handle Endpoint Interrupts */