Made acpi_button clear the button status register, if not properly, at least in a way that works.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@11464 a95241bf-73f2-0310-859d-f6bbb57e9c96
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@ -19,8 +19,7 @@ init_hardware (void)
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status_t
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init_driver (void)
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{
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get_module(B_ACPI_MODULE_NAME,(module_info **)&acpi);
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return B_OK;
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return get_module(B_ACPI_MODULE_NAME,(module_info **)&acpi);
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}
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void
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@ -61,7 +60,21 @@ acpi_button_read (void* cookie, off_t position, void *buf, size_t* num_bytes)
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return B_IO_ERROR;
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*((uint8 *)(buf)) = acpi->read_acpi_reg((uint32)(cookie));
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acpi->write_acpi_reg((uint32)(cookie),0); //--- Clear sticky status reg
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/* acpi->write_acpi_reg((uint32)(cookie),0); */
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/* The above simple clearing of the status register doesn't seem to work.
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So we toggle the ENABLE bit instead. Hopefully this doesn't interfere
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with the debounce logic and result in two events */
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if ((uint32)(cookie) == ACPI_BITREG_POWER_BUTTON_STATUS) {
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acpi->write_acpi_reg(ACPI_BITREG_POWER_BUTTON_ENABLE,1);
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acpi->write_acpi_reg(ACPI_BITREG_POWER_BUTTON_ENABLE,0);
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} else if ((uint32)(cookie) == ACPI_BITREG_SLEEP_BUTTON_STATUS) {
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acpi->write_acpi_reg(ACPI_BITREG_SLEEP_BUTTON_ENABLE,1);
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acpi->write_acpi_reg(ACPI_BITREG_SLEEP_BUTTON_ENABLE,0);
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}
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*num_bytes = 1;
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return B_OK;
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}
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