Differential D16432 Diff 45812 sys/dev/uart/uart_bus_acpi.c

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sys/dev/uart/uart_bus_acpi.c

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	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT			* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF			* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.			* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	*/			*/

	#include <sys/cdefs.h>			#include <sys/cdefs.h>
	__FBSDID("$FreeBSD$");			__FBSDID("$FreeBSD$");

				#include "opt_acpi.h"

				impUnsubmitted Not Done Inline Actions not needed. imp: not needed.
	#include <sys/param.h>			#include <sys/param.h>
	#include <sys/systm.h>			#include <sys/systm.h>
	#include <sys/bus.h>			#include <sys/bus.h>
	#include <sys/conf.h>			#include <sys/conf.h>
	#include <sys/kernel.h>			#include <sys/kernel.h>
	#include <sys/module.h>			#include <sys/module.h>
	#include <machine/bus.h>			#include <machine/bus.h>
	#include <sys/rman.h>			#include <sys/rman.h>
	#include <machine/resource.h>			#include <machine/resource.h>

	#include <isa/isavar.h>

	#include <dev/uart/uart.h>			#include <dev/uart/uart.h>
	#include <dev/uart/uart_bus.h>			#include <dev/uart/uart_bus.h>
	#include <dev/uart/uart_cpu_acpi.h>			#include <dev/uart/uart_cpu_acpi.h>

	#ifdef __aarch64__
	#include <contrib/dev/acpica/include/acpi.h>			#include <contrib/dev/acpica/include/acpi.h>
				impUnsubmitted Not Done Inline Actions not needed. https://reviews.freebsd.org/P209 for the proper fix imp: not needed. https://reviews.freebsd.org/P209 for the proper fix
	#include <contrib/dev/acpica/include/accommon.h>			#include <contrib/dev/acpica/include/accommon.h>
	#include <dev/acpica/acpivar.h>			#include <dev/acpica/acpivar.h>
	#endif

	static int uart_acpi_probe(device_t dev);			static int uart_acpi_probe(device_t dev);

	static device_method_t uart_acpi_methods[] = {			static device_method_t uart_acpi_methods[] = {
	/* Device interface */			/* Device interface */
	DEVMETHOD(device_probe, uart_acpi_probe),			DEVMETHOD(device_probe, uart_acpi_probe),
	DEVMETHOD(device_attach, uart_bus_attach),			DEVMETHOD(device_attach, uart_bus_attach),
	DEVMETHOD(device_detach, uart_bus_detach),			DEVMETHOD(device_detach, uart_bus_detach),
	DEVMETHOD(device_resume, uart_bus_resume),			DEVMETHOD(device_resume, uart_bus_resume),
	{ 0, 0 }			{ 0, 0 }
	};			};

	static driver_t uart_acpi_driver = {			static driver_t uart_acpi_driver = {
	uart_driver_name,			uart_driver_name,
	uart_acpi_methods,			uart_acpi_methods,
	sizeof(struct uart_softc),			sizeof(struct uart_softc),
	};			};

	#if defined(__i386__) \|\| defined(__amd64__)			static struct acpi_uart_compat_data *
	static struct isa_pnp_id acpi_ns8250_ids[] = {
	{0x0005d041, "Standard PC COM port"}, /* PNP0500 */
	{0x0105d041, "16550A-compatible COM port"}, /* PNP0501 */
	{0x0205d041, "Multiport serial device (non-intelligent 16550)"}, /* PNP0502 */
	{0x1005d041, "Generic IRDA-compatible device"}, /* PNP0510 */
	{0x1105d041, "Generic IRDA-compatible device"}, /* PNP0511 */
	{0x04f0235c, "Wacom Tablet PC Screen"}, /* WACF004 */
	{0x0ef0235c, "Wacom Tablet PC Screen 00e"}, /* WACF00e */
	{0xe502aa1a, "Wacom Tablet at FuS Lifebook T"}, /* FUJ02E5 */
	{0}
	};
	#endif

	#ifdef __aarch64__
	static struct uart_class *
	uart_acpi_find_device(device_t dev)			uart_acpi_find_device(device_t dev)
	{			{
	struct acpi_uart_compat_data **cd;			struct acpi_uart_compat_data *cd, cd_it;
	ACPI_HANDLE h;			ACPI_HANDLE h;

	if ((h = acpi_get_handle(dev)) == NULL)			if ((h = acpi_get_handle(dev)) == NULL)
	return (NULL);			return (NULL);

	SET_FOREACH(cd, uart_acpi_class_and_device_set) {			SET_FOREACH(cd, uart_acpi_class_and_device_set) {
	if (acpi_MatchHid(h, (*cd)->hid)) {			for (cd_it = *cd; cd_it->cd_hid != NULL; cd_it++) {
	return ((*cd)->clas);			if (acpi_MatchHid(h, cd_it->cd_hid))
				return (cd_it);
				jhbUnsubmitted Done Inline Actions Debug no longer needed? jhb: Debug no longer needed?
	}			}
	}			}

	return (NULL);			return (NULL);
	}			}
	#endif

	static int			static int
	uart_acpi_probe(device_t dev)			uart_acpi_probe(device_t dev)
	{			{
	struct uart_softc *sc;			struct uart_softc *sc;
				struct acpi_uart_compat_data *cd;

	sc = device_get_softc(dev);			sc = device_get_softc(dev);

	#if defined(__i386__) \|\| defined(__amd64__)			if ((cd = uart_acpi_find_device(dev)) != NULL) {
	if (!ISA_PNP_PROBE(device_get_parent(dev), dev, acpi_ns8250_ids)) {			sc->sc_class = cd->cd_class;
				jhbUnsubmitted Done Inline Actions Debug no longer needed? jhb: Debug no longer needed?
	sc->sc_class = &uart_ns8250_class;			if (cd->cd_desc != NULL)
				jhbUnsubmitted Done Inline Actions To make the 'desc' stuff work, add this before the call to uart_bus_probe(): if (cd->cd_desc != NULL) device_set_desc(dev, cd->cd_desc); This would mean that entries could also leave cd_desc as NULL to use the generic name. jhb: To make the 'desc' stuff work, add this before the call to uart_bus_probe(): ``` if (cd…
	return (uart_bus_probe(dev, 0, 0, 0, 0, 0));			device_set_desc(dev, cd->cd_desc);
				return (uart_bus_probe(dev, cd->cd_regshft, cd->cd_regiowidth,
				cd->cd_rclk, 0, 0));
	}			}

	/* Add checks for non-ns8250 IDs here. */
	#elif defined(__aarch64__)
	if ((sc->sc_class = uart_acpi_find_device(dev)) != NULL)
	return (uart_bus_probe(dev, 2, 0, 0, 0, 0));
	#endif

	return (ENXIO);			return (ENXIO);
	}			}

	DRIVER_MODULE(uart, acpi, uart_acpi_driver, uart_devclass, 0, 0);			DRIVER_MODULE(uart, acpi, uart_acpi_driver, uart_devclass, 0, 0);
				impUnsubmitted Not Done Inline Actions not needed imp: not needed