diff options
Diffstat (limited to 'drivers/acpi/hardware/hwregs.c')
| -rw-r--r-- | drivers/acpi/hardware/hwregs.c | 600 |
1 files changed, 290 insertions, 310 deletions
diff --git a/drivers/acpi/hardware/hwregs.c b/drivers/acpi/hardware/hwregs.c index 04a058565d8d..536a7aea80c9 100644 --- a/drivers/acpi/hardware/hwregs.c +++ b/drivers/acpi/hardware/hwregs.c @@ -50,8 +50,7 @@ #include <acpi/acevents.h> #define _COMPONENT ACPI_HARDWARE - ACPI_MODULE_NAME ("hwregs") - +ACPI_MODULE_NAME("hwregs") /******************************************************************************* * @@ -65,57 +64,52 @@ * THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED * ******************************************************************************/ - -acpi_status -acpi_hw_clear_acpi_status ( - u32 flags) +acpi_status acpi_hw_clear_acpi_status(u32 flags) { - acpi_status status; - + acpi_status status; - ACPI_FUNCTION_TRACE ("hw_clear_acpi_status"); + ACPI_FUNCTION_TRACE("hw_clear_acpi_status"); - - ACPI_DEBUG_PRINT ((ACPI_DB_IO, "About to write %04X to %04X\n", - ACPI_BITMASK_ALL_FIXED_STATUS, - (u16) acpi_gbl_FADT->xpm1a_evt_blk.address)); + ACPI_DEBUG_PRINT((ACPI_DB_IO, "About to write %04X to %04X\n", + ACPI_BITMASK_ALL_FIXED_STATUS, + (u16) acpi_gbl_FADT->xpm1a_evt_blk.address)); if (flags & ACPI_MTX_LOCK) { - status = acpi_ut_acquire_mutex (ACPI_MTX_HARDWARE); - if (ACPI_FAILURE (status)) { - return_ACPI_STATUS (status); + status = acpi_ut_acquire_mutex(ACPI_MTX_HARDWARE); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); } } - status = acpi_hw_register_write (ACPI_MTX_DO_NOT_LOCK, - ACPI_REGISTER_PM1_STATUS, - ACPI_BITMASK_ALL_FIXED_STATUS); - if (ACPI_FAILURE (status)) { + status = acpi_hw_register_write(ACPI_MTX_DO_NOT_LOCK, + ACPI_REGISTER_PM1_STATUS, + ACPI_BITMASK_ALL_FIXED_STATUS); + if (ACPI_FAILURE(status)) { goto unlock_and_exit; } /* Clear the fixed events */ if (acpi_gbl_FADT->xpm1b_evt_blk.address) { - status = acpi_hw_low_level_write (16, ACPI_BITMASK_ALL_FIXED_STATUS, - &acpi_gbl_FADT->xpm1b_evt_blk); - if (ACPI_FAILURE (status)) { + status = + acpi_hw_low_level_write(16, ACPI_BITMASK_ALL_FIXED_STATUS, + &acpi_gbl_FADT->xpm1b_evt_blk); + if (ACPI_FAILURE(status)) { goto unlock_and_exit; } } /* Clear the GPE Bits in all GPE registers in all GPE blocks */ - status = acpi_ev_walk_gpe_list (acpi_hw_clear_gpe_block); + status = acpi_ev_walk_gpe_list(acpi_hw_clear_gpe_block); -unlock_and_exit: + unlock_and_exit: if (flags & ACPI_MTX_LOCK) { - (void) acpi_ut_release_mutex (ACPI_MTX_HARDWARE); + (void)acpi_ut_release_mutex(ACPI_MTX_HARDWARE); } - return_ACPI_STATUS (status); + return_ACPI_STATUS(status); } - /******************************************************************************* * * FUNCTION: acpi_get_sleep_type_data @@ -132,53 +126,48 @@ unlock_and_exit: ******************************************************************************/ acpi_status -acpi_get_sleep_type_data ( - u8 sleep_state, - u8 *sleep_type_a, - u8 *sleep_type_b) +acpi_get_sleep_type_data(u8 sleep_state, u8 * sleep_type_a, u8 * sleep_type_b) { - acpi_status status = AE_OK; - struct acpi_parameter_info info; - char *sleep_state_name; - - - ACPI_FUNCTION_TRACE ("acpi_get_sleep_type_data"); + acpi_status status = AE_OK; + struct acpi_parameter_info info; + char *sleep_state_name; + ACPI_FUNCTION_TRACE("acpi_get_sleep_type_data"); /* Validate parameters */ - if ((sleep_state > ACPI_S_STATES_MAX) || - !sleep_type_a || !sleep_type_b) { - return_ACPI_STATUS (AE_BAD_PARAMETER); + if ((sleep_state > ACPI_S_STATES_MAX) || !sleep_type_a || !sleep_type_b) { + return_ACPI_STATUS(AE_BAD_PARAMETER); } /* Evaluate the namespace object containing the values for this state */ info.parameters = NULL; info.return_object = NULL; - sleep_state_name = (char *) acpi_gbl_sleep_state_names[sleep_state]; + sleep_state_name = (char *)acpi_gbl_sleep_state_names[sleep_state]; - status = acpi_ns_evaluate_by_name (sleep_state_name, &info); - if (ACPI_FAILURE (status)) { - ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, - "%s while evaluating sleep_state [%s]\n", - acpi_format_exception (status), sleep_state_name)); + status = acpi_ns_evaluate_by_name(sleep_state_name, &info); + if (ACPI_FAILURE(status)) { + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "%s while evaluating sleep_state [%s]\n", + acpi_format_exception(status), + sleep_state_name)); - return_ACPI_STATUS (status); + return_ACPI_STATUS(status); } /* Must have a return object */ if (!info.return_object) { - ACPI_REPORT_ERROR (("No Sleep State object returned from [%s]\n", - sleep_state_name)); + ACPI_REPORT_ERROR(("No Sleep State object returned from [%s]\n", + sleep_state_name)); status = AE_NOT_EXIST; } /* It must be of type Package */ - else if (ACPI_GET_OBJECT_TYPE (info.return_object) != ACPI_TYPE_PACKAGE) { - ACPI_REPORT_ERROR (("Sleep State return object is not a Package\n")); + else if (ACPI_GET_OBJECT_TYPE(info.return_object) != ACPI_TYPE_PACKAGE) { + ACPI_REPORT_ERROR(("Sleep State return object is not a Package\n")); status = AE_AML_OPERAND_TYPE; } @@ -190,45 +179,41 @@ acpi_get_sleep_type_data ( * one per sleep type (A/B). */ else if (info.return_object->package.count < 2) { - ACPI_REPORT_ERROR (( - "Sleep State return package does not have at least two elements\n")); + ACPI_REPORT_ERROR(("Sleep State return package does not have at least two elements\n")); status = AE_AML_NO_OPERAND; } /* The first two elements must both be of type Integer */ - else if ((ACPI_GET_OBJECT_TYPE (info.return_object->package.elements[0]) - != ACPI_TYPE_INTEGER) || - (ACPI_GET_OBJECT_TYPE (info.return_object->package.elements[1]) - != ACPI_TYPE_INTEGER)) { - ACPI_REPORT_ERROR (( - "Sleep State return package elements are not both Integers (%s, %s)\n", - acpi_ut_get_object_type_name (info.return_object->package.elements[0]), - acpi_ut_get_object_type_name (info.return_object->package.elements[1]))); + else if ((ACPI_GET_OBJECT_TYPE(info.return_object->package.elements[0]) + != ACPI_TYPE_INTEGER) || + (ACPI_GET_OBJECT_TYPE(info.return_object->package.elements[1]) + != ACPI_TYPE_INTEGER)) { + ACPI_REPORT_ERROR(("Sleep State return package elements are not both Integers (%s, %s)\n", acpi_ut_get_object_type_name(info.return_object->package.elements[0]), acpi_ut_get_object_type_name(info.return_object->package.elements[1]))); status = AE_AML_OPERAND_TYPE; - } - else { + } else { /* Valid _Sx_ package size, type, and value */ *sleep_type_a = (u8) - (info.return_object->package.elements[0])->integer.value; + (info.return_object->package.elements[0])->integer.value; *sleep_type_b = (u8) - (info.return_object->package.elements[1])->integer.value; + (info.return_object->package.elements[1])->integer.value; } - if (ACPI_FAILURE (status)) { - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, - "%s While evaluating sleep_state [%s], bad Sleep object %p type %s\n", - acpi_format_exception (status), - sleep_state_name, info.return_object, - acpi_ut_get_object_type_name (info.return_object))); + if (ACPI_FAILURE(status)) { + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "%s While evaluating sleep_state [%s], bad Sleep object %p type %s\n", + acpi_format_exception(status), + sleep_state_name, info.return_object, + acpi_ut_get_object_type_name(info. + return_object))); } - acpi_ut_remove_reference (info.return_object); - return_ACPI_STATUS (status); + acpi_ut_remove_reference(info.return_object); + return_ACPI_STATUS(status); } -EXPORT_SYMBOL(acpi_get_sleep_type_data); +EXPORT_SYMBOL(acpi_get_sleep_type_data); /******************************************************************************* * @@ -242,22 +227,20 @@ EXPORT_SYMBOL(acpi_get_sleep_type_data); * ******************************************************************************/ -struct acpi_bit_register_info * -acpi_hw_get_bit_register_info ( - u32 register_id) +struct acpi_bit_register_info *acpi_hw_get_bit_register_info(u32 register_id) { - ACPI_FUNCTION_NAME ("hw_get_bit_register_info"); - + ACPI_FUNCTION_NAME("hw_get_bit_register_info"); if (register_id > ACPI_BITREG_MAX) { - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Invalid bit_register ID: %X\n", register_id)); + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "Invalid bit_register ID: %X\n", + register_id)); return (NULL); } return (&acpi_gbl_bit_register_info[register_id]); } - /******************************************************************************* * * FUNCTION: acpi_get_register @@ -273,59 +256,56 @@ acpi_hw_get_bit_register_info ( * ******************************************************************************/ -acpi_status -acpi_get_register ( - u32 register_id, - u32 *return_value, - u32 flags) +acpi_status acpi_get_register(u32 register_id, u32 * return_value, u32 flags) { - u32 register_value = 0; - struct acpi_bit_register_info *bit_reg_info; - acpi_status status; - - - ACPI_FUNCTION_TRACE ("acpi_get_register"); + u32 register_value = 0; + struct acpi_bit_register_info *bit_reg_info; + acpi_status status; + ACPI_FUNCTION_TRACE("acpi_get_register"); /* Get the info structure corresponding to the requested ACPI Register */ - bit_reg_info = acpi_hw_get_bit_register_info (register_id); + bit_reg_info = acpi_hw_get_bit_register_info(register_id); if (!bit_reg_info) { - return_ACPI_STATUS (AE_BAD_PARAMETER); + return_ACPI_STATUS(AE_BAD_PARAMETER); } if (flags & ACPI_MTX_LOCK) { - status = acpi_ut_acquire_mutex (ACPI_MTX_HARDWARE); - if (ACPI_FAILURE (status)) { - return_ACPI_STATUS (status); + status = acpi_ut_acquire_mutex(ACPI_MTX_HARDWARE); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); } } /* Read from the register */ - status = acpi_hw_register_read (ACPI_MTX_DO_NOT_LOCK, - bit_reg_info->parent_register, ®ister_value); + status = acpi_hw_register_read(ACPI_MTX_DO_NOT_LOCK, + bit_reg_info->parent_register, + ®ister_value); if (flags & ACPI_MTX_LOCK) { - (void) acpi_ut_release_mutex (ACPI_MTX_HARDWARE); + (void)acpi_ut_release_mutex(ACPI_MTX_HARDWARE); } - if (ACPI_SUCCESS (status)) { + if (ACPI_SUCCESS(status)) { /* Normalize the value that was read */ - register_value = ((register_value & bit_reg_info->access_bit_mask) - >> bit_reg_info->bit_position); + register_value = + ((register_value & bit_reg_info->access_bit_mask) + >> bit_reg_info->bit_position); *return_value = register_value; - ACPI_DEBUG_PRINT ((ACPI_DB_IO, "Read value %8.8X register %X\n", - register_value, bit_reg_info->parent_register)); + ACPI_DEBUG_PRINT((ACPI_DB_IO, "Read value %8.8X register %X\n", + register_value, + bit_reg_info->parent_register)); } - return_ACPI_STATUS (status); + return_ACPI_STATUS(status); } -EXPORT_SYMBOL(acpi_get_register); +EXPORT_SYMBOL(acpi_get_register); /******************************************************************************* * @@ -342,40 +322,36 @@ EXPORT_SYMBOL(acpi_get_register); * ******************************************************************************/ -acpi_status -acpi_set_register ( - u32 register_id, - u32 value, - u32 flags) +acpi_status acpi_set_register(u32 register_id, u32 value, u32 flags) { - u32 register_value = 0; - struct acpi_bit_register_info *bit_reg_info; - acpi_status status; - - - ACPI_FUNCTION_TRACE_U32 ("acpi_set_register", register_id); + u32 register_value = 0; + struct acpi_bit_register_info *bit_reg_info; + acpi_status status; + ACPI_FUNCTION_TRACE_U32("acpi_set_register", register_id); /* Get the info structure corresponding to the requested ACPI Register */ - bit_reg_info = acpi_hw_get_bit_register_info (register_id); + bit_reg_info = acpi_hw_get_bit_register_info(register_id); if (!bit_reg_info) { - ACPI_REPORT_ERROR (("Bad ACPI HW register_id: %X\n", register_id)); - return_ACPI_STATUS (AE_BAD_PARAMETER); + ACPI_REPORT_ERROR(("Bad ACPI HW register_id: %X\n", + register_id)); + return_ACPI_STATUS(AE_BAD_PARAMETER); } if (flags & ACPI_MTX_LOCK) { - status = acpi_ut_acquire_mutex (ACPI_MTX_HARDWARE); - if (ACPI_FAILURE (status)) { - return_ACPI_STATUS (status); + status = acpi_ut_acquire_mutex(ACPI_MTX_HARDWARE); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); } } /* Always do a register read first so we can insert the new bits */ - status = acpi_hw_register_read (ACPI_MTX_DO_NOT_LOCK, - bit_reg_info->parent_register, ®ister_value); - if (ACPI_FAILURE (status)) { + status = acpi_hw_register_read(ACPI_MTX_DO_NOT_LOCK, + bit_reg_info->parent_register, + ®ister_value); + if (ACPI_FAILURE(status)) { goto unlock_and_exit; } @@ -395,26 +371,30 @@ acpi_set_register ( * information is the single bit we're interested in, all others should * be written as 0 so they will be left unchanged. */ - value = ACPI_REGISTER_PREPARE_BITS (value, - bit_reg_info->bit_position, bit_reg_info->access_bit_mask); + value = ACPI_REGISTER_PREPARE_BITS(value, + bit_reg_info->bit_position, + bit_reg_info-> + access_bit_mask); if (value) { - status = acpi_hw_register_write (ACPI_MTX_DO_NOT_LOCK, - ACPI_REGISTER_PM1_STATUS, (u16) value); + status = acpi_hw_register_write(ACPI_MTX_DO_NOT_LOCK, + ACPI_REGISTER_PM1_STATUS, + (u16) value); register_value = 0; } break; - case ACPI_REGISTER_PM1_ENABLE: - ACPI_REGISTER_INSERT_VALUE (register_value, bit_reg_info->bit_position, - bit_reg_info->access_bit_mask, value); + ACPI_REGISTER_INSERT_VALUE(register_value, + bit_reg_info->bit_position, + bit_reg_info->access_bit_mask, + value); - status = acpi_hw_register_write (ACPI_MTX_DO_NOT_LOCK, - ACPI_REGISTER_PM1_ENABLE, (u16) register_value); + status = acpi_hw_register_write(ACPI_MTX_DO_NOT_LOCK, + ACPI_REGISTER_PM1_ENABLE, + (u16) register_value); break; - case ACPI_REGISTER_PM1_CONTROL: /* @@ -422,65 +402,73 @@ acpi_set_register ( * Note that at this level, the fact that there are actually TWO * registers (A and B - and B may not exist) is abstracted. */ - ACPI_DEBUG_PRINT ((ACPI_DB_IO, "PM1 control: Read %X\n", register_value)); + ACPI_DEBUG_PRINT((ACPI_DB_IO, "PM1 control: Read %X\n", + register_value)); - ACPI_REGISTER_INSERT_VALUE (register_value, bit_reg_info->bit_position, - bit_reg_info->access_bit_mask, value); + ACPI_REGISTER_INSERT_VALUE(register_value, + bit_reg_info->bit_position, + bit_reg_info->access_bit_mask, + value); - status = acpi_hw_register_write (ACPI_MTX_DO_NOT_LOCK, - ACPI_REGISTER_PM1_CONTROL, (u16) register_value); + status = acpi_hw_register_write(ACPI_MTX_DO_NOT_LOCK, + ACPI_REGISTER_PM1_CONTROL, + (u16) register_value); break; - case ACPI_REGISTER_PM2_CONTROL: - status = acpi_hw_register_read (ACPI_MTX_DO_NOT_LOCK, - ACPI_REGISTER_PM2_CONTROL, ®ister_value); - if (ACPI_FAILURE (status)) { + status = acpi_hw_register_read(ACPI_MTX_DO_NOT_LOCK, + ACPI_REGISTER_PM2_CONTROL, + ®ister_value); + if (ACPI_FAILURE(status)) { goto unlock_and_exit; } - ACPI_DEBUG_PRINT ((ACPI_DB_IO, "PM2 control: Read %X from %8.8X%8.8X\n", - register_value, - ACPI_FORMAT_UINT64 ( - acpi_gbl_FADT->xpm2_cnt_blk.address))); - - ACPI_REGISTER_INSERT_VALUE (register_value, bit_reg_info->bit_position, - bit_reg_info->access_bit_mask, value); - - ACPI_DEBUG_PRINT ((ACPI_DB_IO, "About to write %4.4X to %8.8X%8.8X\n", - register_value, - ACPI_FORMAT_UINT64 ( - acpi_gbl_FADT->xpm2_cnt_blk.address))); - - status = acpi_hw_register_write (ACPI_MTX_DO_NOT_LOCK, - ACPI_REGISTER_PM2_CONTROL, (u8) (register_value)); + ACPI_DEBUG_PRINT((ACPI_DB_IO, + "PM2 control: Read %X from %8.8X%8.8X\n", + register_value, + ACPI_FORMAT_UINT64(acpi_gbl_FADT-> + xpm2_cnt_blk.address))); + + ACPI_REGISTER_INSERT_VALUE(register_value, + bit_reg_info->bit_position, + bit_reg_info->access_bit_mask, + value); + + ACPI_DEBUG_PRINT((ACPI_DB_IO, + "About to write %4.4X to %8.8X%8.8X\n", + register_value, + ACPI_FORMAT_UINT64(acpi_gbl_FADT-> + xpm2_cnt_blk.address))); + + status = acpi_hw_register_write(ACPI_MTX_DO_NOT_LOCK, + ACPI_REGISTER_PM2_CONTROL, + (u8) (register_value)); break; - default: break; } - -unlock_and_exit: + unlock_and_exit: if (flags & ACPI_MTX_LOCK) { - (void) acpi_ut_release_mutex (ACPI_MTX_HARDWARE); + (void)acpi_ut_release_mutex(ACPI_MTX_HARDWARE); } /* Normalize the value that was read */ - ACPI_DEBUG_EXEC (register_value = - ((register_value & bit_reg_info->access_bit_mask) >> - bit_reg_info->bit_position)); + ACPI_DEBUG_EXEC(register_value = + ((register_value & bit_reg_info->access_bit_mask) >> + bit_reg_info->bit_position)); - ACPI_DEBUG_PRINT ((ACPI_DB_IO, "Set bits: %8.8X actual %8.8X register %X\n", - value, register_value, bit_reg_info->parent_register)); - return_ACPI_STATUS (status); + ACPI_DEBUG_PRINT((ACPI_DB_IO, + "Set bits: %8.8X actual %8.8X register %X\n", value, + register_value, bit_reg_info->parent_register)); + return_ACPI_STATUS(status); } -EXPORT_SYMBOL(acpi_set_register); +EXPORT_SYMBOL(acpi_set_register); /****************************************************************************** * @@ -498,103 +486,107 @@ EXPORT_SYMBOL(acpi_set_register); ******************************************************************************/ acpi_status -acpi_hw_register_read ( - u8 use_lock, - u32 register_id, - u32 *return_value) +acpi_hw_register_read(u8 use_lock, u32 register_id, u32 * return_value) { - u32 value1 = 0; - u32 value2 = 0; - acpi_status status; - - - ACPI_FUNCTION_TRACE ("hw_register_read"); + u32 value1 = 0; + u32 value2 = 0; + acpi_status status; + ACPI_FUNCTION_TRACE("hw_register_read"); if (ACPI_MTX_LOCK == use_lock) { - status = acpi_ut_acquire_mutex (ACPI_MTX_HARDWARE); - if (ACPI_FAILURE (status)) { - return_ACPI_STATUS (status); + status = acpi_ut_acquire_mutex(ACPI_MTX_HARDWARE); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); } } switch (register_id) { - case ACPI_REGISTER_PM1_STATUS: /* 16-bit access */ + case ACPI_REGISTER_PM1_STATUS: /* 16-bit access */ - status = acpi_hw_low_level_read (16, &value1, &acpi_gbl_FADT->xpm1a_evt_blk); - if (ACPI_FAILURE (status)) { + status = + acpi_hw_low_level_read(16, &value1, + &acpi_gbl_FADT->xpm1a_evt_blk); + if (ACPI_FAILURE(status)) { goto unlock_and_exit; } /* PM1B is optional */ - status = acpi_hw_low_level_read (16, &value2, &acpi_gbl_FADT->xpm1b_evt_blk); + status = + acpi_hw_low_level_read(16, &value2, + &acpi_gbl_FADT->xpm1b_evt_blk); value1 |= value2; break; + case ACPI_REGISTER_PM1_ENABLE: /* 16-bit access */ - case ACPI_REGISTER_PM1_ENABLE: /* 16-bit access */ - - status = acpi_hw_low_level_read (16, &value1, &acpi_gbl_xpm1a_enable); - if (ACPI_FAILURE (status)) { + status = + acpi_hw_low_level_read(16, &value1, &acpi_gbl_xpm1a_enable); + if (ACPI_FAILURE(status)) { goto unlock_and_exit; } /* PM1B is optional */ - status = acpi_hw_low_level_read (16, &value2, &acpi_gbl_xpm1b_enable); + status = + acpi_hw_low_level_read(16, &value2, &acpi_gbl_xpm1b_enable); value1 |= value2; break; + case ACPI_REGISTER_PM1_CONTROL: /* 16-bit access */ - case ACPI_REGISTER_PM1_CONTROL: /* 16-bit access */ - - status = acpi_hw_low_level_read (16, &value1, &acpi_gbl_FADT->xpm1a_cnt_blk); - if (ACPI_FAILURE (status)) { + status = + acpi_hw_low_level_read(16, &value1, + &acpi_gbl_FADT->xpm1a_cnt_blk); + if (ACPI_FAILURE(status)) { goto unlock_and_exit; } - status = acpi_hw_low_level_read (16, &value2, &acpi_gbl_FADT->xpm1b_cnt_blk); + status = + acpi_hw_low_level_read(16, &value2, + &acpi_gbl_FADT->xpm1b_cnt_blk); value1 |= value2; break; + case ACPI_REGISTER_PM2_CONTROL: /* 8-bit access */ - case ACPI_REGISTER_PM2_CONTROL: /* 8-bit access */ - - status = acpi_hw_low_level_read (8, &value1, &acpi_gbl_FADT->xpm2_cnt_blk); + status = + acpi_hw_low_level_read(8, &value1, + &acpi_gbl_FADT->xpm2_cnt_blk); break; + case ACPI_REGISTER_PM_TIMER: /* 32-bit access */ - case ACPI_REGISTER_PM_TIMER: /* 32-bit access */ - - status = acpi_hw_low_level_read (32, &value1, &acpi_gbl_FADT->xpm_tmr_blk); + status = + acpi_hw_low_level_read(32, &value1, + &acpi_gbl_FADT->xpm_tmr_blk); break; - case ACPI_REGISTER_SMI_COMMAND_BLOCK: /* 8-bit access */ + case ACPI_REGISTER_SMI_COMMAND_BLOCK: /* 8-bit access */ - status = acpi_os_read_port (acpi_gbl_FADT->smi_cmd, &value1, 8); + status = acpi_os_read_port(acpi_gbl_FADT->smi_cmd, &value1, 8); break; default: - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Unknown Register ID: %X\n", - register_id)); + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Unknown Register ID: %X\n", + register_id)); status = AE_BAD_PARAMETER; break; } -unlock_and_exit: + unlock_and_exit: if (ACPI_MTX_LOCK == use_lock) { - (void) acpi_ut_release_mutex (ACPI_MTX_HARDWARE); + (void)acpi_ut_release_mutex(ACPI_MTX_HARDWARE); } - if (ACPI_SUCCESS (status)) { + if (ACPI_SUCCESS(status)) { *return_value = value1; } - return_ACPI_STATUS (status); + return_ACPI_STATUS(status); } - /****************************************************************************** * * FUNCTION: acpi_hw_register_write @@ -610,109 +602,112 @@ unlock_and_exit: * ******************************************************************************/ -acpi_status -acpi_hw_register_write ( - u8 use_lock, - u32 register_id, - u32 value) +acpi_status acpi_hw_register_write(u8 use_lock, u32 register_id, u32 value) { - acpi_status status; - - - ACPI_FUNCTION_TRACE ("hw_register_write"); + acpi_status status; + ACPI_FUNCTION_TRACE("hw_register_write"); if (ACPI_MTX_LOCK == use_lock) { - status = acpi_ut_acquire_mutex (ACPI_MTX_HARDWARE); - if (ACPI_FAILURE (status)) { - return_ACPI_STATUS (status); + status = acpi_ut_acquire_mutex(ACPI_MTX_HARDWARE); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); } } switch (register_id) { - case ACPI_REGISTER_PM1_STATUS: /* 16-bit access */ + case ACPI_REGISTER_PM1_STATUS: /* 16-bit access */ - status = acpi_hw_low_level_write (16, value, &acpi_gbl_FADT->xpm1a_evt_blk); - if (ACPI_FAILURE (status)) { + status = + acpi_hw_low_level_write(16, value, + &acpi_gbl_FADT->xpm1a_evt_blk); + if (ACPI_FAILURE(status)) { goto unlock_and_exit; } /* PM1B is optional */ - status = acpi_hw_low_level_write (16, value, &acpi_gbl_FADT->xpm1b_evt_blk); + status = + acpi_hw_low_level_write(16, value, + &acpi_gbl_FADT->xpm1b_evt_blk); break; + case ACPI_REGISTER_PM1_ENABLE: /* 16-bit access */ - case ACPI_REGISTER_PM1_ENABLE: /* 16-bit access*/ - - status = acpi_hw_low_level_write (16, value, &acpi_gbl_xpm1a_enable); - if (ACPI_FAILURE (status)) { + status = + acpi_hw_low_level_write(16, value, &acpi_gbl_xpm1a_enable); + if (ACPI_FAILURE(status)) { goto unlock_and_exit; } /* PM1B is optional */ - status = acpi_hw_low_level_write (16, value, &acpi_gbl_xpm1b_enable); + status = + acpi_hw_low_level_write(16, value, &acpi_gbl_xpm1b_enable); break; + case ACPI_REGISTER_PM1_CONTROL: /* 16-bit access */ - case ACPI_REGISTER_PM1_CONTROL: /* 16-bit access */ - - status = acpi_hw_low_level_write (16, value, &acpi_gbl_FADT->xpm1a_cnt_blk); - if (ACPI_FAILURE (status)) { + status = + acpi_hw_low_level_write(16, value, + &acpi_gbl_FADT->xpm1a_cnt_blk); + if (ACPI_FAILURE(status)) { goto unlock_and_exit; } - status = acpi_hw_low_level_write (16, value, &acpi_gbl_FADT->xpm1b_cnt_blk); + status = + acpi_hw_low_level_write(16, value, + &acpi_gbl_FADT->xpm1b_cnt_blk); break; + case ACPI_REGISTER_PM1A_CONTROL: /* 16-bit access */ - case ACPI_REGISTER_PM1A_CONTROL: /* 16-bit access */ - - status = acpi_hw_low_level_write (16, value, &acpi_gbl_FADT->xpm1a_cnt_blk); + status = + acpi_hw_low_level_write(16, value, + &acpi_gbl_FADT->xpm1a_cnt_blk); break; + case ACPI_REGISTER_PM1B_CONTROL: /* 16-bit access */ - case ACPI_REGISTER_PM1B_CONTROL: /* 16-bit access */ - - status = acpi_hw_low_level_write (16, value, &acpi_gbl_FADT->xpm1b_cnt_blk); + status = + acpi_hw_low_level_write(16, value, + &acpi_gbl_FADT->xpm1b_cnt_blk); break; + case ACPI_REGISTER_PM2_CONTROL: /* 8-bit access */ - case ACPI_REGISTER_PM2_CONTROL: /* 8-bit access */ - - status = acpi_hw_low_level_write (8, value, &acpi_gbl_FADT->xpm2_cnt_blk); + status = + acpi_hw_low_level_write(8, value, + &acpi_gbl_FADT->xpm2_cnt_blk); break; + case ACPI_REGISTER_PM_TIMER: /* 32-bit access */ - case ACPI_REGISTER_PM_TIMER: /* 32-bit access */ - - status = acpi_hw_low_level_write (32, value, &acpi_gbl_FADT->xpm_tmr_blk); + status = + acpi_hw_low_level_write(32, value, + &acpi_gbl_FADT->xpm_tmr_blk); break; - - case ACPI_REGISTER_SMI_COMMAND_BLOCK: /* 8-bit access */ + case ACPI_REGISTER_SMI_COMMAND_BLOCK: /* 8-bit access */ /* SMI_CMD is currently always in IO space */ - status = acpi_os_write_port (acpi_gbl_FADT->smi_cmd, value, 8); + status = acpi_os_write_port(acpi_gbl_FADT->smi_cmd, value, 8); break; - default: status = AE_BAD_PARAMETER; break; } -unlock_and_exit: + unlock_and_exit: if (ACPI_MTX_LOCK == use_lock) { - (void) acpi_ut_release_mutex (ACPI_MTX_HARDWARE); + (void)acpi_ut_release_mutex(ACPI_MTX_HARDWARE); } - return_ACPI_STATUS (status); + return_ACPI_STATUS(status); } - /****************************************************************************** * * FUNCTION: acpi_hw_low_level_read @@ -728,17 +723,12 @@ unlock_and_exit: ******************************************************************************/ acpi_status -acpi_hw_low_level_read ( - u32 width, - u32 *value, - struct acpi_generic_address *reg) +acpi_hw_low_level_read(u32 width, u32 * value, struct acpi_generic_address *reg) { - u64 address; - acpi_status status; - - - ACPI_FUNCTION_NAME ("hw_low_level_read"); + u64 address; + acpi_status status; + ACPI_FUNCTION_NAME("hw_low_level_read"); /* * Must have a valid pointer to a GAS structure, and @@ -751,7 +741,7 @@ acpi_hw_low_level_read ( /* Get a local copy of the address. Handles possible alignment issues */ - ACPI_MOVE_64_TO_64 (&address, ®->address); + ACPI_MOVE_64_TO_64(&address, ®->address); if (!address) { return (AE_OK); } @@ -764,35 +754,32 @@ acpi_hw_low_level_read ( switch (reg->address_space_id) { case ACPI_ADR_SPACE_SYSTEM_MEMORY: - status = acpi_os_read_memory ( - (acpi_physical_address) address, - value, width); + status = acpi_os_read_memory((acpi_physical_address) address, + value, width); break; - case ACPI_ADR_SPACE_SYSTEM_IO: - status = acpi_os_read_port ((acpi_io_address) address, - value, width); + status = acpi_os_read_port((acpi_io_address) address, + value, width); break; - default: - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, - "Unsupported address space: %X\n", reg->address_space_id)); + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "Unsupported address space: %X\n", + reg->address_space_id)); return (AE_BAD_PARAMETER); } - ACPI_DEBUG_PRINT ((ACPI_DB_IO, - "Read: %8.8X width %2d from %8.8X%8.8X (%s)\n", - *value, width, - ACPI_FORMAT_UINT64 (address), - acpi_ut_get_region_name (reg->address_space_id))); + ACPI_DEBUG_PRINT((ACPI_DB_IO, + "Read: %8.8X width %2d from %8.8X%8.8X (%s)\n", + *value, width, + ACPI_FORMAT_UINT64(address), + acpi_ut_get_region_name(reg->address_space_id))); return (status); } - /****************************************************************************** * * FUNCTION: acpi_hw_low_level_write @@ -808,17 +795,12 @@ acpi_hw_low_level_read ( ******************************************************************************/ acpi_status -acpi_hw_low_level_write ( - u32 width, - u32 value, - struct acpi_generic_address *reg) +acpi_hw_low_level_write(u32 width, u32 value, struct acpi_generic_address * reg) { - u64 address; - acpi_status status; - - - ACPI_FUNCTION_NAME ("hw_low_level_write"); + u64 address; + acpi_status status; + ACPI_FUNCTION_NAME("hw_low_level_write"); /* * Must have a valid pointer to a GAS structure, and @@ -831,7 +813,7 @@ acpi_hw_low_level_write ( /* Get a local copy of the address. Handles possible alignment issues */ - ACPI_MOVE_64_TO_64 (&address, ®->address); + ACPI_MOVE_64_TO_64(&address, ®->address); if (!address) { return (AE_OK); } @@ -843,30 +825,28 @@ acpi_hw_low_level_write ( switch (reg->address_space_id) { case ACPI_ADR_SPACE_SYSTEM_MEMORY: - status = acpi_os_write_memory ( - (acpi_physical_address) address, - value, width); + status = acpi_os_write_memory((acpi_physical_address) address, + value, width); break; - case ACPI_ADR_SPACE_SYSTEM_IO: - status = acpi_os_write_port ((acpi_io_address) address, - value, width); + status = acpi_os_write_port((acpi_io_address) address, + value, width); break; - default: - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, - "Unsupported address space: %X\n", reg->address_space_id)); + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "Unsupported address space: %X\n", + reg->address_space_id)); return (AE_BAD_PARAMETER); } - ACPI_DEBUG_PRINT ((ACPI_DB_IO, - "Wrote: %8.8X width %2d to %8.8X%8.8X (%s)\n", - value, width, - ACPI_FORMAT_UINT64 (address), - acpi_ut_get_region_name (reg->address_space_id))); + ACPI_DEBUG_PRINT((ACPI_DB_IO, + "Wrote: %8.8X width %2d to %8.8X%8.8X (%s)\n", + value, width, + ACPI_FORMAT_UINT64(address), + acpi_ut_get_region_name(reg->address_space_id))); return (status); } |