diff options
| -rw-r--r-- | src/acpi/acpigen.c | 40 | ||||
| -rw-r--r-- | src/include/acpi/acpigen.h | 20 |
2 files changed, 60 insertions, 0 deletions
diff --git a/src/acpi/acpigen.c b/src/acpi/acpigen.c index 793841cc5b..efc5a16195 100644 --- a/src/acpi/acpigen.c +++ b/src/acpi/acpigen.c @@ -339,6 +339,18 @@ void acpigen_write_scope(const char *name) acpigen_emit_namestring(name); } +void acpigen_get_package_op_element(uint8_t package_op, unsigned int element, uint8_t dest_op) +{ + /* <dest_op> = DeRefOf (<package_op>[<element]) */ + acpigen_write_store(); + acpigen_emit_byte(DEREF_OP); + acpigen_emit_byte(INDEX_OP); + acpigen_emit_byte(package_op); + acpigen_write_integer(element); + acpigen_emit_byte(ZERO_OP); /* Ignore Index() Destination */ + acpigen_emit_byte(dest_op); +} + void acpigen_write_processor(u8 cpuindex, u32 pblock_addr, u8 pblock_len) { /* @@ -1269,6 +1281,20 @@ void acpigen_write_if_and(uint8_t arg1, uint8_t arg2) } /* + * Generates ACPI code for checking if operand1 and operand2 are equal. + * Both operand1 and operand2 are ACPI ops. + * + * If (Lequal (op,1 op2)) + */ +void acpigen_write_if_lequal_op_op(uint8_t op1, uint8_t op2) +{ + acpigen_write_if(); + acpigen_emit_byte(LEQUAL_OP); + acpigen_emit_byte(op1); + acpigen_emit_byte(op2); +} + +/* * Generates ACPI code for checking if operand1 and operand2 are equal, where, * operand1 is ACPI op and operand2 is an integer. * @@ -1341,6 +1367,12 @@ void acpigen_write_return_singleton_buffer(uint8_t arg) acpigen_write_return_byte_buffer(&arg, 1); } +void acpigen_write_return_op(uint8_t arg) +{ + acpigen_emit_byte(RETURN_OP); + acpigen_emit_byte(arg); +} + void acpigen_write_return_byte(uint8_t arg) { acpigen_emit_byte(RETURN_OP); @@ -1790,6 +1822,14 @@ void acpigen_get_rx_gpio(struct acpi_gpio *gpio) acpigen_write_xor(LOCAL0_OP, 1, LOCAL0_OP); } +void acpigen_get_tx_gpio(struct acpi_gpio *gpio) +{ + acpigen_soc_get_tx_gpio(gpio->pins[0]); + + if (gpio->polarity == ACPI_GPIO_ACTIVE_LOW) + acpigen_write_xor(LOCAL0_OP, 1, LOCAL0_OP); +} + /* refer to ACPI 6.4.3.5.3 Word Address Space Descriptor section for details */ void acpigen_resource_word(u16 res_type, u16 gen_flags, u16 type_flags, u16 gran, u16 range_min, u16 range_max, u16 translation, u16 length) diff --git a/src/include/acpi/acpigen.h b/src/include/acpi/acpigen.h index a99489de1f..dffde851f5 100644 --- a/src/include/acpi/acpigen.h +++ b/src/include/acpi/acpigen.h @@ -360,6 +360,7 @@ void acpigen_write_debug_integer(uint64_t val); void acpigen_write_debug_op(uint8_t op); void acpigen_write_if(void); void acpigen_write_if_and(uint8_t arg1, uint8_t arg2); +void acpigen_write_if_lequal_op_op(uint8_t op, uint8_t val); void acpigen_write_if_lequal_op_int(uint8_t op, uint64_t val); void acpigen_write_if_lequal_namestr_int(const char *namestr, uint64_t val); void acpigen_write_else(void); @@ -368,6 +369,7 @@ void acpigen_write_to_integer(uint8_t src, uint8_t dst); void acpigen_write_byte_buffer(uint8_t *arr, size_t size); void acpigen_write_return_byte_buffer(uint8_t *arr, size_t size); void acpigen_write_return_singleton_buffer(uint8_t arg); +void acpigen_write_return_op(uint8_t arg); void acpigen_write_return_byte(uint8_t arg); void acpigen_write_upc(enum acpi_upc_type type); void acpigen_write_pld(const struct acpi_pld *pld); @@ -439,6 +441,16 @@ void acpigen_write_indexfield(const char *idx, const char *data, int get_cst_entries(acpi_cstate_t **); /* + * Get element from package into specified destination op: + * <dest_op> = DeRefOf (<package_op>[<element]) + * + * Example: + * acpigen_get_package_op_element(ARG0_OP, 0, LOCAL0_OP) + * Local0 = DeRefOf (Arg0[0]) + */ +void acpigen_get_package_op_element(uint8_t package_op, unsigned int element, uint8_t dest_op); + +/* * Soc-implemented functions for generating ACPI AML code for GPIO handling. All * these functions are expected to use only Local5, Local6 and Local7 * variables. If the functions call into another ACPI method, then there is no @@ -478,6 +490,14 @@ int acpigen_disable_tx_gpio(struct acpi_gpio *gpio); */ void acpigen_get_rx_gpio(struct acpi_gpio *gpio); +/* + * Helper function for getting a TX GPIO value based on the GPIO polarity. + * The return value is stored in Local0 variable. + * This function ends up calling acpigen_soc_get_tx_gpio to make callbacks + * into SoC acpigen code + */ +void acpigen_get_tx_gpio(struct acpi_gpio *gpio); + /* refer to ACPI 6.4.3.5.3 Word Address Space Descriptor section for details */ void acpigen_resource_word(u16 res_type, u16 gen_flags, u16 type_flags, u16 gran, u16 range_min, u16 range_max, u16 translation, u16 length); |