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-rw-r--r--tools/intel_bios.h26
-rw-r--r--tools/intel_bios_reader.c108
2 files changed, 120 insertions, 14 deletions
diff --git a/tools/intel_bios.h b/tools/intel_bios.h
index ac8c8650..925bb06c 100644
--- a/tools/intel_bios.h
+++ b/tools/intel_bios.h
@@ -658,21 +658,37 @@ struct edp_power_seq {
uint16_t t12;
} __attribute__ ((packed));
-struct edp_link_params {
+struct edp_fast_link_params {
uint8_t rate:4;
uint8_t lanes:4;
uint8_t preemphasis:4;
uint8_t vswing:4;
} __attribute__ ((packed));
-struct bdb_edp {
+struct edp_pwm_delays {
+ uint16_t pwm_on_to_backlight_enable;
+ uint16_t backlight_disable_to_pwm_off;
+} __attribute__ ((packed));
+
+struct edp_full_link_params {
+ uint8_t preemphasis:4;
+ uint8_t vswing:4;
+} __attribute__ ((packed));
+
+struct bdb_edp { /* 155 */
struct edp_power_seq power_seqs[16];
uint32_t color_depth;
- struct edp_link_params link_params[16];
+ struct edp_fast_link_params fast_link_params[16];
uint32_t sdrrs_msa_timing_delay;
- uint16_t edp_s3d_feature;
- uint16_t edp_t3_optimization;
+ uint16_t s3d_feature; /* 163 */
+ uint16_t t3_optimization; /* 165 */
+ uint64_t vswing_preemph_table_selection; /* 173 */
+ uint16_t fast_link_training; /* 182 */
+ uint16_t dpcd_600h_write_required; /* 185 */
+ struct edp_pwm_delays pwm_delays[16]; /* 186 */
+ uint16_t full_link_params_provided; /* 199 */
+ struct edp_full_link_params full_link_params[16]; /* 199 */
} __attribute__ ((packed));
diff --git a/tools/intel_bios_reader.c b/tools/intel_bios_reader.c
index 3aefe2b1..e3daa742 100644
--- a/tools/intel_bios_reader.c
+++ b/tools/intel_bios_reader.c
@@ -754,14 +754,14 @@ static void dump_edp(struct context *context,
msa = (edp->sdrrs_msa_timing_delay >> (i * 2)) & 3;
printf("\t\teDP sDRRS MSA Delay: Lane %d\n", msa + 1);
- printf("\t\tLink params:\n");
+ printf("\t\tFast link params:\n");
printf("\t\t\trate: ");
- if (edp->link_params[i].rate == EDP_RATE_1_62)
+ if (edp->fast_link_params[i].rate == EDP_RATE_1_62)
printf("1.62G\n");
- else if (edp->link_params[i].rate == EDP_RATE_2_7)
+ else if (edp->fast_link_params[i].rate == EDP_RATE_2_7)
printf("2.7G\n");
printf("\t\t\tlanes: ");
- switch (edp->link_params[i].lanes) {
+ switch (edp->fast_link_params[i].lanes) {
case EDP_LANE_1:
printf("x1 mode\n");
break;
@@ -773,11 +773,11 @@ static void dump_edp(struct context *context,
break;
default:
printf("(unknown value %d)\n",
- edp->link_params[i].lanes);
+ edp->fast_link_params[i].lanes);
break;
}
printf("\t\t\tpre-emphasis: ");
- switch (edp->link_params[i].preemphasis) {
+ switch (edp->fast_link_params[i].preemphasis) {
case EDP_PREEMPHASIS_NONE:
printf("none\n");
break;
@@ -792,11 +792,11 @@ static void dump_edp(struct context *context,
break;
default:
printf("(unknown value %d)\n",
- edp->link_params[i].preemphasis);
+ edp->fast_link_params[i].preemphasis);
break;
}
printf("\t\t\tvswing: ");
- switch (edp->link_params[i].vswing) {
+ switch (edp->fast_link_params[i].vswing) {
case EDP_VSWING_0_4V:
printf("0.4V\n");
break;
@@ -811,9 +811,99 @@ static void dump_edp(struct context *context,
break;
default:
printf("(unknown value %d)\n",
- edp->link_params[i].vswing);
+ edp->fast_link_params[i].vswing);
break;
}
+
+ if (context->bdb->version >= 162) {
+ bool val = (edp->s3d_feature >> i) & 1;
+ printf("\t\tStereo 3D feature: %s\n", YESNO(val));
+ }
+
+ if (context->bdb->version >= 165) {
+ bool val = (edp->t3_optimization >> i) & 1;
+ printf("\t\tT3 optimization: %s\n", YESNO(val));
+ }
+
+ if (context->bdb->version >= 173) {
+ int val = (edp->vswing_preemph_table_selection >> (i * 4)) & 0xf;
+
+ printf("\t\tVswing/preemphasis table selection: ");
+ switch (val) {
+ case 0:
+ printf("Low power (200 mV)\n");
+ break;
+ case 1:
+ printf("Default (400 mV)\n");
+ break;
+ default:
+ printf("(unknown value %d)\n", val);
+ break;
+ }
+ }
+
+ if (context->bdb->version >= 182) {
+ bool val = (edp->fast_link_training >> i) & 1;
+ printf("\t\tFast link training: %s\n", YESNO(val));
+ }
+
+ if (context->bdb->version >= 185) {
+ bool val = (edp->dpcd_600h_write_required >> i) & 1;
+ printf("\t\tDPCD 600h write required: %s\n", YESNO(val));
+ }
+
+ if (context->bdb->version >= 186) {
+ printf("\t\tPWM delays:\n"
+ "\t\t\tPWM on to backlight enable: %d\n"
+ "\t\t\tBacklight disable to PWM off: %d\n",
+ edp->pwm_delays[i].pwm_on_to_backlight_enable,
+ edp->pwm_delays[i].backlight_disable_to_pwm_off);
+ }
+
+ if (context->bdb->version >= 199) {
+ bool val = (edp->full_link_params_provided >> i) & 1;
+
+ printf("\t\tFull link params provided: %s\n", YESNO(val));
+ printf("\t\tFull link params:\n");
+ printf("\t\t\tpre-emphasis: ");
+ switch (edp->full_link_params[i].preemphasis) {
+ case EDP_PREEMPHASIS_NONE:
+ printf("none\n");
+ break;
+ case EDP_PREEMPHASIS_3_5dB:
+ printf("3.5dB\n");
+ break;
+ case EDP_PREEMPHASIS_6dB:
+ printf("6dB\n");
+ break;
+ case EDP_PREEMPHASIS_9_5dB:
+ printf("9.5dB\n");
+ break;
+ default:
+ printf("(unknown value %d)\n",
+ edp->full_link_params[i].preemphasis);
+ break;
+ }
+ printf("\t\t\tvswing: ");
+ switch (edp->full_link_params[i].vswing) {
+ case EDP_VSWING_0_4V:
+ printf("0.4V\n");
+ break;
+ case EDP_VSWING_0_6V:
+ printf("0.6V\n");
+ break;
+ case EDP_VSWING_0_8V:
+ printf("0.8V\n");
+ break;
+ case EDP_VSWING_1_2V:
+ printf("1.2V\n");
+ break;
+ default:
+ printf("(unknown value %d)\n",
+ edp->full_link_params[i].vswing);
+ break;
+ }
+ }
}
}
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