Sojus07/hackrf
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Cleaned up management of SGPIO and transceiver mode state vs. USB configuration state. This should help with power management. It may also be necessary when operating at low speed (48MHz), to keep the SGPIO interrupts from chewing up ALL available CPU cycles.

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This commit is contained in:
Jared Boone
2013-09-04 16:27:43 -07:00
parent 1f5b979fd9
commit 6c0d803647
1 changed files with 9 additions and 7 deletions
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16
firmware/hackrf_usb/hackrf_usb.c
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@ -335,11 +335,13 @@ void set_transceiver_mode(const transceiver_mode_t new_transceiver_mode) {
sgpio_configure(transceiver_mode, true);
nvic_set_priority(NVIC_SGPIO_IRQ, 0);
nvic_enable_irq(NVIC_SGPIO_IRQ);
SGPIO_SET_EN_1 = (1 << SGPIO_SLICE_A);
if( transceiver_mode != TRANSCEIVER_MODE_OFF ) {
nvic_set_priority(NVIC_SGPIO_IRQ, 0);
nvic_enable_irq(NVIC_SGPIO_IRQ);
SGPIO_SET_EN_1 = (1 << SGPIO_SLICE_A);
sgpio_cpld_stream_enable();
sgpio_cpld_stream_enable();
}
}
usb_request_status_t usb_vendor_request_set_transceiver_mode(
@ -887,17 +889,17 @@ const usb_request_handlers_t usb_request_handlers = {
void usb_configuration_changed(
usb_device_t* const device
) {
set_transceiver_mode(transceiver_mode);
if( device->configuration->number ) {
cpu_clock_pll1_max_speed();
set_transceiver_mode(transceiver_mode);
gpio_set(PORT_LED1_3, PIN_LED1);
} else {
/* Configuration number equal 0 means usb bus reset. */
set_transceiver_mode(TRANSCEIVER_MODE_OFF);
cpu_clock_pll1_low_speed();
gpio_clear(PORT_LED1_3, PIN_LED1);
}
};
}
void sgpio_isr() {
SGPIO_CLR_STATUS_1 = (1 << SGPIO_SLICE_A);