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MAX2837: Add virtual function for setting device mode.

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This commit is contained in:
Jared Boone
2014-11-10 12:40:11 -08:00
parent 905cd2b919
commit 6d57c08e28
6 changed files with 41 additions and 51 deletions
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1
firmware/common/hackrf_core.c
View File

@ -82,6 +82,7 @@ spi_t spi_ssp1 = {
max2837_driver_t max2837 = {
.spi = &spi_ssp1,
.set_mode = max2837_target_set_mode,
};
max5864_driver_t max5864 = {

33
firmware/common/max2837.c
View File

@ -80,8 +80,8 @@ static const uint16_t max2837_regs_default[MAX2837_NUM_REGS] = {
static void max2837_init(max2837_driver_t* const drv)
{
spi_init(drv->spi, &ssp_config_max2837);
max2837_mode_shutdown(drv);
max2837_target_init(drv);
max2837_set_mode(drv, MAX2837_MODE_SHUTDOWN);
memcpy(drv->regs, max2837_regs_default, sizeof(drv->regs));
drv->regs_dirty = 0xffffffff;
@ -165,54 +165,39 @@ void max2837_regs_commit(max2837_driver_t* const drv)
}
void max2837_set_mode(max2837_driver_t* const drv, const max2837_mode_t new_mode) {
switch(new_mode) {
case MAX2837_MODE_SHUTDOWN:
max2837_mode_shutdown(drv);
break;
drv->set_mode(drv, new_mode);
}
case MAX2837_MODE_STANDBY:
max2837_mode_standby(drv);
break;
case MAX2837_MODE_TX:
max2837_mode_tx(drv);
break;
case MAX2837_MODE_RX:
max2837_mode_rx(drv);
break;
default:
break;
}
max2837_mode_t max2837_mode(max2837_driver_t* const drv) {
return drv->mode;
}
void max2837_start(max2837_driver_t* const drv)
{
set_MAX2837_EN_SPI(drv, 1);
max2837_regs_commit(drv);
max2837_mode_standby(drv);
max2837_set_mode(drv, MAX2837_MODE_STANDBY);
}
void max2837_tx(max2837_driver_t* const drv)
{
set_MAX2837_ModeCtrl(drv, MAX2837_ModeCtrl_TxLPF);
max2837_regs_commit(drv);
max2837_mode_tx(drv);
max2837_set_mode(drv, MAX2837_MODE_TX);
}
void max2837_rx(max2837_driver_t* const drv)
{
set_MAX2837_ModeCtrl(drv, MAX2837_ModeCtrl_RxLPF);
max2837_regs_commit(drv);
max2837_mode_rx(drv);
max2837_set_mode(drv, MAX2837_MODE_RX);
}
void max2837_stop(max2837_driver_t* const drv)
{
set_MAX2837_EN_SPI(drv, 0);
max2837_regs_commit(drv);
max2837_mode_shutdown(drv);
max2837_set_mode(drv, MAX2837_MODE_SHUTDOWN);
}
void max2837_set_frequency(max2837_driver_t* const drv, uint32_t freq)

2
firmware/common/max2837.h
View File

@ -41,6 +41,8 @@ typedef enum {
typedef struct {
spi_t* const spi;
void (*set_mode)(max2837_driver_t* const drv, const max2837_mode_t new_mode);
max2837_mode_t mode;
uint16_t regs[MAX2837_NUM_REGS];
uint32_t regs_dirty;
} max2837_driver_t;

46
firmware/common/max2837_target.c
View File

@ -92,17 +92,16 @@ void max2837_target_spi_unselect(spi_t* const spi) {
gpio_set(PORT_XCVR_CS, PIN_XCVR_CS);
}
void max2837_mode_shutdown(max2837_driver_t* const drv) {
(void)drv;
static void max2837_target_mode_shutdown(max2837_driver_t* const drv) {
/* All circuit blocks are powered down, except the 4-wire serial bus
* and its internal programmable registers.
*/
gpio_clear(PORT_XCVR_ENABLE,
(PIN_XCVR_ENABLE | PIN_XCVR_RXENABLE | PIN_XCVR_TXENABLE));
drv->mode = MAX2837_MODE_SHUTDOWN;
}
void max2837_mode_standby(max2837_driver_t* const drv) {
(void)drv;
static void max2837_target_mode_standby(max2837_driver_t* const drv) {
/* Used to enable the frequency synthesizer block while the rest of the
* device is powered down. In this mode, PLL, VCO, and LO generator
* are on, so that Tx or Rx modes can be quickly enabled from this mode.
@ -110,10 +109,10 @@ void max2837_mode_standby(max2837_driver_t* const drv) {
*/
gpio_clear(PORT_XCVR_ENABLE, (PIN_XCVR_RXENABLE | PIN_XCVR_TXENABLE));
gpio_set(PORT_XCVR_ENABLE, PIN_XCVR_ENABLE);
drv->mode = MAX2837_MODE_STANDBY;
}
void max2837_mode_tx(max2837_driver_t* const drv) {
(void)drv;
static void max2837_target_mode_tx(max2837_driver_t* const drv) {
/* All Tx circuit blocks are powered on. The external PA is powered on
* after a programmable delay using the on-chip PA bias DAC. The slow-
* charging Rx circuits are in a precharged “idle-off” state for fast
@ -122,10 +121,10 @@ void max2837_mode_tx(max2837_driver_t* const drv) {
gpio_clear(PORT_XCVR_ENABLE, PIN_XCVR_RXENABLE);
gpio_set(PORT_XCVR_ENABLE,
(PIN_XCVR_ENABLE | PIN_XCVR_TXENABLE));
drv->mode = MAX2837_MODE_TX;
}
void max2837_mode_rx(max2837_driver_t* const drv) {
(void)drv;
static void max2837_target_mode_rx(max2837_driver_t* const drv) {
/* All Rx circuit blocks are powered on and active. Antenna signal is
* applied; RF is downconverted, filtered, and buffered at Rx BB I and Q
* outputs. The slow- charging Tx circuits are in a precharged “idle-off”
@ -134,19 +133,26 @@ void max2837_mode_rx(max2837_driver_t* const drv) {
gpio_clear(PORT_XCVR_ENABLE, PIN_XCVR_TXENABLE);
gpio_set(PORT_XCVR_ENABLE,
(PIN_XCVR_ENABLE | PIN_XCVR_RXENABLE));
drv->mode = MAX2837_MODE_RX;
}
max2837_mode_t max2837_mode(max2837_driver_t* const drv) {
(void)drv;
if( gpio_get(PORT_XCVR_ENABLE, PIN_XCVR_ENABLE) ) {
if( gpio_get(PORT_XCVR_ENABLE, PIN_XCVR_TXENABLE) ) {
return MAX2837_MODE_TX;
} else if( gpio_get(PORT_XCVR_ENABLE, PIN_XCVR_RXENABLE) ) {
return MAX2837_MODE_RX;
} else {
return MAX2837_MODE_STANDBY;
}
} else {
return MAX2837_MODE_SHUTDOWN;
void max2837_target_set_mode(max2837_driver_t* const drv, const max2837_mode_t new_mode) {
switch(new_mode) {
default:
case MAX2837_MODE_SHUTDOWN:
max2837_target_mode_shutdown(drv);
break;
case MAX2837_MODE_STANDBY:
max2837_target_mode_standby(drv);
break;
case MAX2837_MODE_TX:
max2837_target_mode_tx(drv);
break;
case MAX2837_MODE_RX:
max2837_target_mode_rx(drv);
break;
}
}

8
firmware/common/max2837_target.h
View File

@ -27,13 +27,9 @@
#include "spi.h"
void max2837_target_init(max2837_driver_t* const drv);
void max2837_target_set_mode(max2837_driver_t* const drv, const max2837_mode_t new_mode);
void max2837_target_spi_select(spi_t* const spi);
void max2837_target_spi_unselect(spi_t* const spi);
void max2837_mode_shutdown(max2837_driver_t* const drv);
void max2837_mode_standby(max2837_driver_t* const drv);
void max2837_mode_tx(max2837_driver_t* const drv);
void max2837_mode_rx(max2837_driver_t* const drv);
max2837_mode_t max2837_mode(max2837_driver_t* const drv);
#endif // __MAX2837_TARGET_H

2
firmware/common/tuning.c
View File

@ -65,7 +65,7 @@ bool set_freq(const uint64_t freq)
success = true;
const max2837_mode_t prior_max2837_mode = max2837_mode(&max2837);
max2837_mode_standby(&max2837);
max2837_set_mode(&max2837, MAX2837_MODE_STANDBY);
if(freq_mhz < MAX_LP_FREQ_MHZ)
{
rf_path_set_filter(RF_PATH_FILTER_LOW_PASS);