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/*
* dc_helper.c
*
* Created on: Aug 30, 2016
* Author: agrodzov
*/
#include "dm_services.h"
#include <stdarg.h>
uint32_t generic_reg_update_ex(const struct dc_context *ctx,
uint32_t addr, uint32_t reg_val, int n,
uint8_t shift1, uint32_t mask1, uint32_t field_value1,
...)
{
uint32_t shift, mask, field_value;
int i = 1;
va_list ap;
va_start(ap, field_value1);
reg_val = set_reg_field_value_ex(reg_val, field_value1, mask1, shift1);
while (i < n) {
shift = va_arg(ap, uint32_t);
mask = va_arg(ap, uint32_t);
field_value = va_arg(ap, uint32_t);
reg_val = set_reg_field_value_ex(reg_val, field_value, mask, shift);
i++;
}
dm_write_reg(ctx, addr, reg_val);
va_end(ap);
return reg_val;
}
uint32_t generic_reg_get(const struct dc_context *ctx, uint32_t addr,
uint8_t shift, uint32_t mask, uint32_t *field_value)
{
uint32_t reg_val = dm_read_reg(ctx, addr);
*field_value = get_reg_field_value_ex(reg_val, mask, shift);
return reg_val;
}
uint32_t generic_reg_get2(const struct dc_context *ctx, uint32_t addr,
uint8_t shift1, uint32_t mask1, uint32_t *field_value1,
uint8_t shift2, uint32_t mask2, uint32_t *field_value2)
{
uint32_t reg_val = dm_read_reg(ctx, addr);
*field_value1 = get_reg_field_value_ex(reg_val, mask1, shift1);
*field_value2 = get_reg_field_value_ex(reg_val, mask2, shift2);
return reg_val;
}
uint32_t generic_reg_get3(const struct dc_context *ctx, uint32_t addr,
uint8_t shift1, uint32_t mask1, uint32_t *field_value1,
uint8_t shift2, uint32_t mask2, uint32_t *field_value2,
uint8_t shift3, uint32_t mask3, uint32_t *field_value3)
{
uint32_t reg_val = dm_read_reg(ctx, addr);
*field_value1 = get_reg_field_value_ex(reg_val, mask1, shift1);
*field_value2 = get_reg_field_value_ex(reg_val, mask2, shift2);
*field_value3 = get_reg_field_value_ex(reg_val, mask3, shift3);
return reg_val;
}
uint32_t generic_reg_get4(const struct dc_context *ctx, uint32_t addr,
uint8_t shift1, uint32_t mask1, uint32_t *field_value1,
uint8_t shift2, uint32_t mask2, uint32_t *field_value2,
uint8_t shift3, uint32_t mask3, uint32_t *field_value3,
uint8_t shift4, uint32_t mask4, uint32_t *field_value4)
{
uint32_t reg_val = dm_read_reg(ctx, addr);
*field_value1 = get_reg_field_value_ex(reg_val, mask1, shift1);
*field_value2 = get_reg_field_value_ex(reg_val, mask2, shift2);
*field_value3 = get_reg_field_value_ex(reg_val, mask3, shift3);
*field_value4 = get_reg_field_value_ex(reg_val, mask4, shift4);
return reg_val;
}
uint32_t generic_reg_get5(const struct dc_context *ctx, uint32_t addr,
uint8_t shift1, uint32_t mask1, uint32_t *field_value1,
uint8_t shift2, uint32_t mask2, uint32_t *field_value2,
uint8_t shift3, uint32_t mask3, uint32_t *field_value3,
uint8_t shift4, uint32_t mask4, uint32_t *field_value4,
uint8_t shift5, uint32_t mask5, uint32_t *field_value5)
{
uint32_t reg_val = dm_read_reg(ctx, addr);
*field_value1 = get_reg_field_value_ex(reg_val, mask1, shift1);
*field_value2 = get_reg_field_value_ex(reg_val, mask2, shift2);
*field_value3 = get_reg_field_value_ex(reg_val, mask3, shift3);
*field_value4 = get_reg_field_value_ex(reg_val, mask4, shift4);
*field_value5 = get_reg_field_value_ex(reg_val, mask5, shift5);
return reg_val;
}
/* note: va version of this is pretty bad idea, since there is a output parameter pass by pointer
* compiler won't be able to check for size match and is prone to stack corruption type of bugs
uint32_t generic_reg_get(const struct dc_context *ctx,
uint32_t addr, int n, ...)
{
uint32_t shift, mask;
uint32_t *field_value;
uint32_t reg_val;
int i = 0;
reg_val = dm_read_reg(ctx, addr);
va_list ap;
va_start(ap, n);
while (i < n) {
shift = va_arg(ap, uint32_t);
mask = va_arg(ap, uint32_t);
field_value = va_arg(ap, uint32_t *);
*field_value = get_reg_field_value_ex(reg_val, mask, shift);
i++;
}
va_end(ap);
return reg_val;
}
*/
uint32_t generic_reg_wait(const struct dc_context *ctx,
uint32_t addr, uint32_t shift, uint32_t mask, uint32_t condition_value,
unsigned int delay_between_poll_us, unsigned int time_out_num_tries,
const char *func_name)
{
uint32_t field_value;
uint32_t reg_val;
int i;
for (i = 0; i <= time_out_num_tries; i++) {
if (i) {
if (0 < delay_between_poll_us && delay_between_poll_us < 1000)
udelay(delay_between_poll_us);
if (delay_between_poll_us > 1000)
msleep(delay_between_poll_us/1000);
}
reg_val = dm_read_reg(ctx, addr);
field_value = get_reg_field_value_ex(reg_val, mask, shift);
if (field_value == condition_value)
return reg_val;
}
DC_ERR("REG_WAIT timeout %dus * %d tries - %s\n",
delay_between_poll_us, time_out_num_tries, func_name);
return reg_val;
}
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