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/* (C) 2011-2012 by Harald Welte <laforge@gnumonks.org>
*
* All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdint.h>
#include <unistd.h>
#include <errno.h>
#include <common.h>
#include <logging.h>
#include <tuner_e4k.h>
//#include <twi/twi.h>
#include <twi/twid.h>
#include <pio/pio.h>
#include <board.h>
int e4k_reg_write(struct e4k_state *e4k, uint8_t reg, uint8_t val)
{
unsigned char rc;
rc = TWID_Write(e4k->i2c_dev, e4k->i2c_addr, reg, 1, &val, 1, NULL);
if (rc != 0) {
LOGP(DTUN, LOGL_ERROR, "Error %u in TWID_Write\n", rc);
return -EIO;
}
return 0;
}
int e4k_reg_read(struct e4k_state *e4k, uint8_t reg)
{
unsigned char rc;
uint8_t val;
rc = TWID_Read(e4k->i2c_dev, e4k->i2c_addr, reg, 1, &val, 1, NULL);
if (rc != 0) {
LOGP(DTUN, LOGL_ERROR, "Error %u in TWID_Read\n", rc);
return -EIO;
}
return val;
}
/* We assume the caller has already done TWID_initialize() */
int sam3u_e4k_init(struct e4k_state *e4k, void *i2c, uint8_t slave_addr)
{
e4k->i2c_dev = i2c;
e4k->i2c_addr = slave_addr;
return 0;
}
static const Pin pin_rfstby = PIN_RFSTBY;
static const Pin pin_pwdn = PIN_PDWN;
/*! \brief Enable or disable Power of E4K
* \param[in] e4k E4K reference
* \param[in] on Enable (1) or disable (0) Power
*/
void sam3u_e4k_power(struct e4k_state *e4k, int on)
{
if (on)
PIO_Set(&pin_pwdn);
else
PIO_Clear(&pin_pwdn);
}
/*! \brief Enable or disable standby mode of E4K
* \param[in] e4k E4K reference
* \param[in] on Enable (1) or disable (0) STBY
*/
void sam3u_e4k_stby(struct e4k_state *e4k, int on)
{
if (on)
PIO_Clear(&pin_rfstby);
else
PIO_Set(&pin_rfstby);
}
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