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atusb/fw/mac.c: always wait for stability before changing transceiver state

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This commit is contained in:
Werner Almesberger 2013-02-20 13:05:33 -03:00
parent 945aa04d9d
commit de8bcc1925
1 changed files with 11 additions and 5 deletions
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16
atusb/fw/mac.c
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@ -106,15 +106,23 @@ static int handle_irq(void)
}
static void change_state(uint8_t new)
{
while ((reg_read(REG_TRX_STATUS) & TRX_STATUS_MASK) ==
TRX_STATUS_TRANSITION);
reg_write(REG_TRX_STATE, new);
}
int mac_rx(int on)
{
if (on) {
mac_irq = handle_irq;
reg_read(REG_IRQ_STATUS);
reg_write(REG_TRX_STATE, TRX_CMD_RX_ON);
change_state(TRX_CMD_RX_ON);
} else {
mac_irq = NULL;
reg_write(REG_TRX_STATE, TRX_CMD_FORCE_TRX_OFF);
change_state(TRX_CMD_FORCE_TRX_OFF);
txing = 0;
}
return 1;
@ -153,9 +161,7 @@ static void do_tx(void *user)
* Wait until we reach BUSY_TX, so that we command the transition to
* RX_ON which will be executed upon TX completion.
*/
while ((reg_read(REG_TRX_STATUS) & TRX_STATUS_MASK) ==
TRX_STATUS_TRANSITION);
reg_write(REG_TRX_STATE, TRX_CMD_RX_ON);
change_state(TRX_CMD_RX_ON);
}