| 1 |
ec646799
|
Harald Welte
|
|
| 2 |
d5c4d1ed
|
Harald Welte
|
/* (C) 2011-2012 by Harald Welte <laforge@gnumonks.org>
|
| 3 |
|
|
*
|
| 4 |
|
|
* All Rights Reserved
|
| 5 |
|
|
*
|
| 6 |
|
|
* This program is free software; you can redistribute it and/or modify
|
| 7 |
|
|
* it under the terms of the GNU General Public License as published by
|
| 8 |
|
|
* the Free Software Foundation; either version 3 of the License, or
|
| 9 |
|
|
* (at your option) any later version.
|
| 10 |
|
|
*
|
| 11 |
|
|
* This program is distributed in the hope that it will be useful,
|
| 12 |
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 13 |
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
| 14 |
|
|
* GNU General Public License for more details.
|
| 15 |
|
|
*
|
| 16 |
|
|
* You should have received a copy of the GNU General Public License
|
| 17 |
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
| 18 |
|
|
*/
|
| 19 |
|
|
|
| 20 |
ec646799
|
Harald Welte
|
#include <stdint.h>
|
| 21 |
|
|
#include <unistd.h>
|
| 22 |
|
|
#include <errno.h>
|
| 23 |
|
|
|
| 24 |
|
|
#include <common.h>
|
| 25 |
|
|
#include <logging.h>
|
| 26 |
|
|
#include <tuner_e4k.h>
|
| 27 |
|
|
|
| 28 |
|
|
//#include <twi/twi.h>
|
| 29 |
|
|
#include <twi/twid.h>
|
| 30 |
13a54079
|
Harald Welte
|
#include <pio/pio.h>
|
| 31 |
|
|
#include <board.h>
|
| 32 |
ec646799
|
Harald Welte
|
|
| 33 |
|
|
|
| 34 |
|
|
int e4k_reg_write(struct e4k_state *e4k, uint8_t reg, uint8_t val)
|
| 35 |
|
|
{
|
| 36 |
|
|
unsigned char rc;
|
| 37 |
|
|
|
| 38 |
|
|
rc = TWID_Write(e4k->i2c_dev, e4k->i2c_addr, reg, 1, &val, 1, NULL);
|
| 39 |
|
|
if (rc != 0) {
|
| 40 |
|
|
LOGP(DTUN, LOGL_ERROR, "Error %u in TWID_Write\n", rc);
|
| 41 |
|
|
return -EIO;
|
| 42 |
|
|
}
|
| 43 |
|
|
|
| 44 |
|
|
return 0;
|
| 45 |
|
|
}
|
| 46 |
|
|
|
| 47 |
180193ce
|
Christian Daniel
|
uint8_t e4k_reg_read(struct e4k_state *e4k, uint8_t reg)
|
| 48 |
ec646799
|
Harald Welte
|
{
|
| 49 |
|
|
unsigned char rc;
|
| 50 |
|
|
uint8_t val;
|
| 51 |
|
|
|
| 52 |
be77347f
|
Harald Welte
|
rc = TWID_Read(e4k->i2c_dev, e4k->i2c_addr, reg, 1, &val, 1, NULL);
|
| 53 |
ec646799
|
Harald Welte
|
if (rc != 0) {
|
| 54 |
be77347f
|
Harald Welte
|
LOGP(DTUN, LOGL_ERROR, "Error %u in TWID_Read\n", rc);
|
| 55 |
ec646799
|
Harald Welte
|
return -EIO;
|
| 56 |
|
|
}
|
| 57 |
|
|
|
| 58 |
|
|
return val;
|
| 59 |
|
|
}
|
| 60 |
|
|
|
| 61 |
|
|
|
| 62 |
|
|
/* We assume the caller has already done TWID_initialize() */
|
| 63 |
54e0c0bf
|
Harald Welte
|
int sam3u_e4k_init(struct e4k_state *e4k, void *i2c, uint8_t slave_addr)
|
| 64 |
ec646799
|
Harald Welte
|
{
|
| 65 |
54e0c0bf
|
Harald Welte
|
e4k->i2c_dev = i2c;
|
| 66 |
ec646799
|
Harald Welte
|
e4k->i2c_addr = slave_addr;
|
| 67 |
|
|
|
| 68 |
|
|
return 0;
|
| 69 |
|
|
}
|
| 70 |
13a54079
|
Harald Welte
|
|
| 71 |
|
|
static const Pin pin_rfstby = PIN_RFSTBY;
|
| 72 |
|
|
static const Pin pin_pwdn = PIN_PDWN;
|
| 73 |
|
|
|
| 74 |
6cd41e8e
|
Harald Welte
|
/*! \brief Enable or disable Power of E4K
|
| 75 |
|
|
* \param[in] e4k E4K reference
|
| 76 |
|
|
* \param[in] on Enable (1) or disable (0) Power
|
| 77 |
|
|
*/
|
| 78 |
|
|
void sam3u_e4k_power(struct e4k_state *e4k, int on)
|
| 79 |
13a54079
|
Harald Welte
|
{
|
| 80 |
|
|
if (on)
|
| 81 |
|
|
PIO_Set(&pin_pwdn);
|
| 82 |
|
|
else
|
| 83 |
|
|
PIO_Clear(&pin_pwdn);
|
| 84 |
|
|
}
|
| 85 |
|
|
|
| 86 |
6cd41e8e
|
Harald Welte
|
/*! \brief Enable or disable standby mode of E4K
|
| 87 |
|
|
* \param[in] e4k E4K reference
|
| 88 |
|
|
* \param[in] on Enable (1) or disable (0) STBY
|
| 89 |
|
|
*/
|
| 90 |
|
|
void sam3u_e4k_stby(struct e4k_state *e4k, int on)
|
| 91 |
13a54079
|
Harald Welte
|
{
|
| 92 |
|
|
if (on)
|
| 93 |
|
|
PIO_Clear(&pin_rfstby);
|
| 94 |
6cd41e8e
|
Harald Welte
|
else
|
| 95 |
|
|
PIO_Set(&pin_rfstby);
|
| 96 |
13a54079
|
Harald Welte
|
}
|
