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lib: enable standby mode of e4k and r820t on exit

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Since the R820T is a power hog and gets quite hot,
this makes sense, especially when being battery-
powered.

Signed-off-by: Steve Markgraf <steve@steve-m.de>
This commit is contained in:
Steve Markgraf 2013-01-16 01:43:45 +01:00
parent 3087e7acde
commit 84f0a9084b
4 changed files with 22 additions and 4 deletions
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1
include/tuner_e4k.h
View File

@ -199,6 +199,7 @@ struct e4k_state {
};
int e4k_init(struct e4k_state *e4k);
int e4k_standby(struct e4k_state *e4k, int enable);
int e4k_if_gain_set(struct e4k_state *e4k, uint8_t stage, int8_t value);
int e4k_mixer_gain_set(struct e4k_state *e4k, int8_t value);
int e4k_commonmode_set(struct e4k_state *e4k, int8_t value);

10
src/librtlsdr.c
View File

@ -101,7 +101,10 @@ int e4000_init(void *dev) {
devt->e4k_s.rtl_dev = dev;
return e4k_init(&devt->e4k_s);
}
int e4000_exit(void *dev) { return 0; }
int e4000_exit(void *dev) {
rtlsdr_dev_t* devt = (rtlsdr_dev_t*)dev;
return e4k_standby(&devt->e4k_s, 1);
}
int e4000_set_freq(void *dev, uint32_t freq) {
rtlsdr_dev_t* devt = (rtlsdr_dev_t*)dev;
return e4k_tune_freq(&devt->e4k_s, freq);
@ -177,7 +180,7 @@ int r820t_init(void *dev) {
r820t_SetStandardMode(dev, DVB_T_6M);
return r;
}
int r820t_exit(void *dev) { return 0; }
int r820t_exit(void *dev) { return r820t_SetStandby(dev, 0); }
int r820t_set_freq(void *dev, uint32_t freq) { return r820t_SetRfFreqHz(dev, freq); }
int r820t_set_bw(void *dev, int bw) { return 0; }
int r820t_set_gain(void *dev, int gain) { return R828_SetRfGain(dev, gain); }
@ -360,7 +363,8 @@ uint8_t rtlsdr_i2c_read_reg(rtlsdr_dev_t *dev, uint8_t i2c_addr, uint8_t reg)
/* TODO clean this up again */
int e4k_reg_write(struct e4k_state *e4k, uint8_t reg, uint8_t val)
{
return rtlsdr_i2c_write_reg((rtlsdr_dev_t*)e4k->rtl_dev, e4k->i2c_addr, reg, val);}
return rtlsdr_i2c_write_reg((rtlsdr_dev_t*)e4k->rtl_dev, e4k->i2c_addr, reg, val);
}
uint8_t e4k_reg_read(struct e4k_state *e4k, uint8_t reg)
{

13
src/tuner_e4k.c
View File

@ -880,6 +880,19 @@ int e4k_dc_offset_gen_table(struct e4k_state *e4k)
return 0;
}
/***********************************************************************
* Standby */
/*! \brief Enable/disable standby mode
*/
int e4k_standby(struct e4k_state *e4k, int enable)
{
e4k_reg_set_mask(e4k, E4K_REG_MASTER1, E4K_MASTER1_NORM_STBY,
enable ? 0 : E4K_MASTER1_NORM_STBY);
return 0;
}
/***********************************************************************
* Initialization */

2
src/tuner_r820t.c
View File

@ -2896,7 +2896,7 @@ R828_ErrCode R828_Standby(void *pTuner, R828_LoopThrough_Type R828_LoopSwitch)
return RT_Fail;
R828_I2C.RegAddr = 0x0F;
R828_I2C.Data = 0x78;
R828_I2C.Data = 0x68; /* was 0x78, which turns off CLK_Out */
if(I2C_Write(pTuner, &R828_I2C) != RT_Success)
return RT_Fail;