diff options
| -rw-r--r-- | src/ec/google/chromeec/ec_dptf_helpers.c | 84 |
1 files changed, 75 insertions, 9 deletions
diff --git a/src/ec/google/chromeec/ec_dptf_helpers.c b/src/ec/google/chromeec/ec_dptf_helpers.c index 74049ac703..8bb3435630 100644 --- a/src/ec/google/chromeec/ec_dptf_helpers.c +++ b/src/ec/google/chromeec/ec_dptf_helpers.c @@ -124,25 +124,91 @@ static void write_fan_fsl(const struct device *ec) acpigen_pop_len(); /* Method _FSL */ } -/* Note: requires manual insertion of acpigen_pop_len() for the If */ -static void write_is_policy_enabled(unsigned int index, bool enabled) +/* + * Emit code to execute if the policy is enabled after this function is called, and also + * remember to manually add a acpigen_pop_len() afterwards! + */ +static void write_is_policy_enabled(bool enabled) { /* - * If (And (LEqual (Deref (Index (IDSP, index)), Arg0)) - * (LEqual (Arg1, enabled))) + * Local0 = SizeOf (IDSP) + * Local1 = 0 + * Local2 = 0 + * + * While (Local1 < Local) { + * If (IDSP[Local1] == Arg0 && Arg1 == enabled) { + * Local2 = 1 + * } + * Local1++ + * } + * + * If (Local2 == 1) { + * .......... + */ + + /* Local0 = SizeOf (IDSP) */ + acpigen_write_store(); + acpigen_emit_byte(SIZEOF_OP); + acpigen_emit_namestring("IDSP"); + acpigen_emit_byte(LOCAL0_OP); + + /* Local1 = 0 (index variable) */ + acpigen_write_store(); + acpigen_write_zero(); + acpigen_emit_byte(LOCAL1_OP); + + /* Local2 = 0 (out variable, 1=found, 0=not found) */ + acpigen_write_store(); + acpigen_write_zero(); + acpigen_emit_byte(LOCAL2_OP); + + /* + * While (Local1 < Local0) { */ + acpigen_emit_byte(WHILE_OP); + acpigen_write_len_f(); + acpigen_emit_byte(LNOT_OP); + acpigen_emit_byte(LGREATER_OP); + acpigen_emit_byte(LOCAL1_OP); + acpigen_emit_byte(LOCAL0_OP); + + /* If (IDSP[Local1] == Arg0 && Arg1 == 1) { */ acpigen_write_if(); acpigen_emit_byte(LAND_OP); acpigen_emit_byte(LEQUAL_OP); acpigen_emit_byte(DEREF_OP); acpigen_emit_byte(INDEX_OP); acpigen_emit_namestring("IDSP"); - acpigen_write_integer(index); + acpigen_emit_byte(LOCAL1_OP); acpigen_emit_byte(ZERO_OP); /* 3rd arg of index - unused */ acpigen_emit_byte(ARG0_OP); /* end lequal */ acpigen_emit_byte(LEQUAL_OP); acpigen_emit_byte(ARG1_OP); acpigen_write_integer(enabled ? 1 : 0); + + /* { Local2 = 1 } */ + acpigen_write_store(); + acpigen_write_one(); + acpigen_emit_byte(LOCAL2_OP); + acpigen_pop_len(); /* If */ + + /* + * Local1++ + * } # End of While + */ + acpigen_emit_byte(INCREMENT_OP); + acpigen_emit_byte(LOCAL1_OP); + acpigen_pop_len(); /* While */ + + /* + * If (Local2 == 1) + */ + acpigen_write_if(); + acpigen_emit_byte(LEQUAL_OP); + acpigen_emit_byte(LOCAL2_OP); + acpigen_write_one(); + + /* caller must insert acpigen_pop_len() ! */ } static void write_dptf_OSC(const struct device *ec) @@ -165,21 +231,21 @@ static void write_dptf_OSC(const struct device *ec) * 1) Disable temperature sensor trip points in the EC (replaces TINI) * 2) Disable the charge limit in the EC (replaces TCHG.INIT) */ - write_is_policy_enabled(0, true); + write_is_policy_enabled(true); for (i = 0; i < DPTF_MAX_TSR; ++i) { snprintf(name, sizeof(name), "^TSR%1d.PATD", i); acpigen_emit_namestring(name); } acpigen_emit_namestring(acpi_device_path_join(ec, "CHGD")); - acpigen_pop_len(); /* If */ + acpigen_pop_len(); /* If (from write_is_policy_enabled) */ /* If the Active Policy is disabled, disable DPTF fan control in the EC */ - write_is_policy_enabled(2, false); + write_is_policy_enabled(false); acpigen_write_store(); acpigen_write_integer(EC_FAN_DUTY_AUTO); acpigen_emit_namestring(acpi_device_path_join(ec, "FAND")); - acpigen_pop_len(); /* If */ + acpigen_pop_len(); /* If (from write_is_policy_enabled) */ acpigen_write_return_op(ARG3_OP); acpigen_pop_len(); /* Method _OSC */ |