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libhackrf/firmware: merge txvga gain into one gain range of 0-47

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This commit is contained in:
Hoernchen
2013-05-29 00:14:24 +02:00
parent 551b7dc011
commit 233c56c79d
5 changed files with 19 additions and 14 deletions
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15
firmware/common/max2837.c
View File

@ -407,13 +407,14 @@ bool max2837_set_vga_gain(const uint32_t gain_db) {
return true;
}
bool max2837_set_txvga_gain(const uint32_t gain_db, const uint32_t plus16) {
uint16_t val = 31-gain_db;
if(gain_db > 31)/* 0b111111 mind the bit 6 weigth*/
return false;
if(!plus16)
val |= 0x20; /* +16db */
bool max2837_set_txvga_gain(const uint32_t gain_db) {
uint16_t val=0;
if(gain_db <16){
val = 31-gain_db;
val |= (1 << 5); // bit6: 16db
} else{
val = 31-(gain_db-16);
}
set_MAX2837_TXVGA_GAIN(val);
max2837_reg_commit(29);

2
firmware/common/max2837.h
View File

@ -47,7 +47,7 @@ extern void max2837_set_frequency(uint32_t freq);
bool max2837_set_lpf_bandwidth(const uint32_t bandwidth_hz);
bool max2837_set_lna_gain(const uint32_t gain_db);
bool max2837_set_vga_gain(const uint32_t gain_db);
bool max2837_set_txvga_gain(const uint32_t gain_db, const uint32_t plus16);
bool max2837_set_txvga_gain(const uint32_t gain_db);
extern void max2837_tx(void);
extern void max2837_rx(void);

4
firmware/hackrf_usb/hackrf_usb.c
View File

@ -790,9 +790,7 @@ usb_request_status_t usb_vendor_request_set_txvga_gain(
usb_endpoint_t* const endpoint, const usb_transfer_stage_t stage)
{
if( stage == USB_TRANSFER_STAGE_SETUP ) {
const uint8_t value = max2837_set_txvga_gain(
endpoint->setup.index, endpoint->setup.value);
const uint8_t value = max2837_set_txvga_gain(endpoint->setup.index);
endpoint->buffer[0] = value;
usb_endpoint_schedule(endpoint->in, &endpoint->buffer, 1);
usb_endpoint_schedule_ack(endpoint->out);

4
host/libhackrf/src/hackrf.c
View File

@ -857,7 +857,7 @@ int ADDCALL hackrf_set_vga_gain(hackrf_device* device, uint32_t value)
}
}
int ADDCALL hackrf_set_txvga_gain(hackrf_device* device, uint32_t value, uint32_t plus16db)
int ADDCALL hackrf_set_txvga_gain(hackrf_device* device, uint32_t value)
{
int result;
@ -870,7 +870,7 @@ int ADDCALL hackrf_set_txvga_gain(hackrf_device* device, uint32_t value, uint32_
device->usb_device,
LIBUSB_ENDPOINT_OUT | LIBUSB_REQUEST_TYPE_VENDOR | LIBUSB_RECIPIENT_DEVICE,
HACKRF_VENDOR_REQUEST_SET_TXVGA_GAIN,
plus16db,
0,
value,
NULL,
0,

8
host/libhackrf/src/hackrf.h
View File

@ -130,13 +130,19 @@ extern ADDAPI int ADDCALL hackrf_version_string_read(hackrf_device* device, char
extern ADDAPI int ADDCALL hackrf_set_freq(hackrf_device* device, const uint64_t freq_hz);
/* external amp, bool on/off */
extern ADDAPI int ADDCALL hackrf_set_amp_enable(hackrf_device* device, const uint8_t value);
extern ADDAPI int ADDCALL hackrf_board_partid_serialno_read(hackrf_device* device, read_partid_serialno_t* read_partid_serialno);
/* range 0-40 step 8db */
extern ADDAPI int ADDCALL hackrf_set_lna_gain(hackrf_device* device, uint32_t value);
/* range 0-62 step 2db */
extern ADDAPI int ADDCALL hackrf_set_vga_gain(hackrf_device* device, uint32_t value);
extern ADDAPI int ADDCALL hackrf_set_txvga_gain(hackrf_device* device, uint32_t value, uint32_t plus16db);
/* range 0-47 step 1db */
extern ADDAPI int ADDCALL hackrf_set_txvga_gain(hackrf_device* device, uint32_t value);
extern ADDAPI const char* ADDCALL hackrf_error_name(enum hackrf_error errcode);
extern ADDAPI const char* ADDCALL hackrf_board_id_name(enum hackrf_board_id board_id);