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Code Activity

atusb/fw/: echo back TX ACK sequence number; don't panic if driver times out TX

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This commit is contained in:
Werner Almesberger
2013-04-01 22:04:05 -03:00
parent 9b2696b848
commit 367c1abb0e
4 changed files with 13 additions and 10 deletions
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17
atusb/fw/mac.c
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@@ -31,6 +31,7 @@ static uint8_t tx_size = 0;
static bool txing = 0;
static bool queued_tx_ack = 0;
static bool queued_rx = 0;
static uint8_t next_seq, this_seq, queued_seq;
static uint8_t reg_read(uint8_t reg)
@@ -67,7 +68,7 @@ static void rx_done(void *user)
return;
}
if (queued_tx_ack) {
usb_send(&eps[1], "", 1, rx_done, NULL);
usb_send(&eps[1], &queued_seq, 1, rx_done, NULL);
queued_tx_ack = 0;
}
}
@@ -114,12 +115,11 @@ static bool handle_irq(void)
return 1;
if (txing) {
if (eps[1].state == EP_IDLE)
usb_send(&eps[1], "", 1, rx_done, NULL);
else {
if (queued_tx_ack)
panic();
if (eps[1].state == EP_IDLE) {
usb_send(&eps[1], &this_seq, 1, rx_done, NULL);
} else {
queued_tx_ack = 1;
queued_seq = this_seq;
}
txing = 0;
return 1;
@@ -198,6 +198,7 @@ static void do_tx(void *user)
slp_tr();
txing = 1;
this_seq = next_seq;
/*
* Wait until we reach BUSY_TX, so that we command the transition to
@@ -207,11 +208,12 @@ static void do_tx(void *user)
}
bool mac_tx(uint16_t flags, uint16_t len)
bool mac_tx(uint16_t flags, uint8_t seq, uint16_t len)
{
if (len > MAX_PSDU)
return 0;
tx_size = len;
next_seq = seq;
usb_recv(&eps[0], tx_buf, len, do_tx, NULL);
return 1;
}
@@ -223,6 +225,7 @@ void mac_reset(void)
txing = 0;
queued_tx_ack = 0;
queued_rx = 0;
next_seq = this_seq = queued_seq = 0;
/* enable CRC and PHY_RSSI (with RX_CRC_VALID) in SPI status return */
reg_write(REG_TRX_CTRL_1,