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#define pr_fmt(fmt) KBUILD_MODNAME ":%s: " fmt, __func__
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/jiffies.h>
#include <linux/types.h>
#include "drx_driver.h"
#include "drx39xxj.h"
/* Dummy function to satisfy drxj.c */
int drxbsp_tuner_open(struct tuner_instance *tuner)
{
return 0;
}
int drxbsp_tuner_close(struct tuner_instance *tuner)
{
return 0;
}
int drxbsp_tuner_set_frequency(struct tuner_instance *tuner,
u32 mode,
s32 center_frequency)
{
return 0;
}
int
drxbsp_tuner_get_frequency(struct tuner_instance *tuner,
u32 mode,
s32 *r_ffrequency,
s32 *i_ffrequency)
{
return 0;
}
int drxbsp_hst_sleep(u32 n)
{
msleep(n);
return 0;
}
u32 drxbsp_hst_clock(void)
{
return jiffies_to_msecs(jiffies);
}
int drxbsp_hst_memcmp(void *s1, void *s2, u32 n)
{
return memcmp(s1, s2, (size_t)n);
}
void *drxbsp_hst_memcpy(void *to, void *from, u32 n)
{
return memcpy(to, from, (size_t)n);
}
int drxbsp_i2c_write_read(struct i2c_device_addr *w_dev_addr,
u16 w_count,
u8 *wData,
struct i2c_device_addr *r_dev_addr,
u16 r_count, u8 *r_data)
{
struct drx39xxj_state *state;
struct i2c_msg msg[2];
unsigned int num_msgs;
if (w_dev_addr == NULL) {
/* Read only */
state = r_dev_addr->user_data;
msg[0].addr = r_dev_addr->i2c_addr >> 1;
msg[0].flags = I2C_M_RD;
msg[0].buf = r_data;
msg[0].len = r_count;
num_msgs = 1;
} else if (r_dev_addr == NULL) {
/* Write only */
state = w_dev_addr->user_data;
msg[0].addr = w_dev_addr->i2c_addr >> 1;
msg[0].flags = 0;
msg[0].buf = wData;
msg[0].len = w_count;
num_msgs = 1;
} else {
/* Both write and read */
state = w_dev_addr->user_data;
msg[0].addr = w_dev_addr->i2c_addr >> 1;
msg[0].flags = 0;
msg[0].buf = wData;
msg[0].len = w_count;
msg[1].addr = r_dev_addr->i2c_addr >> 1;
msg[1].flags = I2C_M_RD;
msg[1].buf = r_data;
msg[1].len = r_count;
num_msgs = 2;
}
if (state->i2c == NULL) {
pr_err("i2c was zero, aborting\n");
return 0;
}
if (i2c_transfer(state->i2c, msg, num_msgs) != num_msgs) {
pr_warn("drx3933: I2C write/read failed\n");
return -EREMOTEIO;
}
return 0;
#ifdef DJH_DEBUG
struct drx39xxj_state *state = w_dev_addr->user_data;
struct i2c_msg msg[2] = {
{.addr = w_dev_addr->i2c_addr,
.flags = 0, .buf = wData, .len = w_count},
{.addr = r_dev_addr->i2c_addr,
.flags = I2C_M_RD, .buf = r_data, .len = r_count},
};
pr_dbg("drx3933 i2c operation addr=%x i2c=%p, wc=%x rc=%x\n",
w_dev_addr->i2c_addr, state->i2c, w_count, r_count);
if (i2c_transfer(state->i2c, msg, 2) != 2) {
pr_warn("drx3933: I2C write/read failed\n");
return -EREMOTEIO;
}
#endif
return 0;
}
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