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