ivb_comp.c

#include <inttypes.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>

#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))

static const bool is_ivybridge = true;

static const uint32_t compofst2_ivb[] = {
	is_ivybridge ? 0x0C235924 : 0x0C21410C,
	is_ivybridge ? 0x0C446964 : 0x0C42514C,
	is_ivybridge ? 0x0C6671E4 : 0x0C6369CC,
	is_ivybridge ? 0x0CA8C264 : 0x0CA57A4C,
	is_ivybridge ? 0x0CEBDB64 : 0x0CE7C34C,
	is_ivybridge ? 0x0D6FF5E4 : 0x0D6BEDCC,
};

union comp_ofst_2_reg {
	struct {
		uint32_t cmd_drv_down  : 3; /* [ 2.. 0] */
		uint32_t cmd_drv_up    : 3; /* [ 5.. 3] */
		uint32_t clk_scomp     : 5; /* [10.. 6] */
		uint32_t dq_scomp      : 5; /* [15..11] */
		uint32_t cmd_scomp     : 5; /* [20..16] */
		uint32_t ctl_scomp     : 5; /* [25..21] */
		uint32_t drv_sleg_down : 1; /* [26..26] */
		uint32_t drv_sleg_up   : 1; /* [27..27] */
		uint32_t               : 4;
	};
	uint32_t raw;
};

int main(void)
{
	printf("                CMD      CMD     CLK      DQ     CMD     CTL   SLEG   SLEG\n");
	printf("Raw value    DRV DN   DRV UP   SCOMP   SCOMP   SCOMP   SCOMP     DN     UP\n");
	for (size_t i = 0; i < ARRAY_SIZE(compofst2_ivb); i++) {
		const union comp_ofst_2_reg reg = {
			.raw = compofst2_ivb[i],
		};
		printf("0x%08x   %6u   %6u   %5u   %5u   %5u   %5u   %4u   %4u\n",
			reg.raw,
			reg.cmd_drv_down,
			reg.cmd_drv_up,
			reg.clk_scomp,
			reg.dq_scomp,
			reg.cmd_scomp,
			reg.ctl_scomp,
			reg.drv_sleg_down,
			reg.drv_sleg_up);
	}
}