Differential D21886 Diff 62869 sys/dev/usb/serial/usb_serial.c

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sys/dev/usb/serial/usb_serial.c

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	#include <dev/usb/usb.h>			#include <dev/usb/usb.h>
	#include <dev/usb/usbdi.h>			#include <dev/usb/usbdi.h>
	#include <dev/usb/usbdi_util.h>			#include <dev/usb/usbdi_util.h>

	#define USB_DEBUG_VAR ucom_debug			#define USB_DEBUG_VAR ucom_debug
	#include <dev/usb/usb_debug.h>			#include <dev/usb/usb_debug.h>
	#include <dev/usb/usb_busdma.h>			#include <dev/usb/usb_busdma.h>
	#include <dev/usb/usb_process.h>			#include <dev/usb/usb_process.h>
				#include <dev/usb/usb_util.h>

	#include <dev/usb/serial/usb_serial.h>			#include <dev/usb/serial/usb_serial.h>

	#include "opt_gdb.h"			#include "opt_gdb.h"

	static SYSCTL_NODE(_hw_usb, OID_AUTO, ucom, CTLFLAG_RW, 0, "USB ucom");			static SYSCTL_NODE(_hw_usb, OID_AUTO, ucom, CTLFLAG_RW, 0, "USB ucom");

	static int ucom_pps_mode;			static int ucom_pps_mode;

	SYSCTL_INT(_hw_usb_ucom, OID_AUTO, pps_mode, CTLFLAG_RWTUN,			SYSCTL_INT(_hw_usb_ucom, OID_AUTO, pps_mode, CTLFLAG_RWTUN,
	&ucom_pps_mode, 0,			&ucom_pps_mode, 0,
	"pulse capture mode: 0/1/2=disabled/CTS/DCD; add 0x10 to invert");			"pulse capture mode: 0/1/2=disabled/CTS/DCD; add 0x10 to invert");

	static int ucom_device_mode_console = 1;			static int ucom_device_mode_console = 1;

	SYSCTL_INT(_hw_usb_ucom, OID_AUTO, device_mode_console, CTLFLAG_RW,			SYSCTL_INT(_hw_usb_ucom, OID_AUTO, device_mode_console, CTLFLAG_RW,
	&ucom_device_mode_console, 0,			&ucom_device_mode_console, 0,
	"set to 1 to mark terminals as consoles when in device mode");			"set to 1 to mark terminals as consoles when in device mode");

				static int ucom_location_as_unit;

				SYSCTL_INT(_hw_usb_ucom, OID_AUTO, location_as_unit, CTLFLAG_RDTUN,
				&ucom_location_as_unit, 0,
				"set to 1 to use device location as device unit");

	#ifdef USB_DEBUG			#ifdef USB_DEBUG
	static int ucom_debug = 0;			static int ucom_debug = 0;

	SYSCTL_INT(_hw_usb_ucom, OID_AUTO, debug, CTLFLAG_RWTUN,			SYSCTL_INT(_hw_usb_ucom, OID_AUTO, debug, CTLFLAG_RWTUN,
	&ucom_debug, 0, "ucom debug level");			&ucom_debug, 0, "ucom debug level");
	#endif			#endif

	#define UCOM_CONS_BUFSIZE 1024			#define UCOM_CONS_BUFSIZE 1024
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	/*			/*
	* Mark the unit number as not in use.			* Mark the unit number as not in use.
	*/			*/
	static void			static void
	ucom_unit_free(int unit)			ucom_unit_free(int unit)
	{			{
	/* sanity checks */			/* sanity checks */
	if (unit < 0 \|\| unit >= UCOM_UNIT_MAX \|\| ucom_unrhdr == NULL) {			if (unit < 0 \|\| unit >= UCOM_UNIT_MAX \|\| ucom_unrhdr == NULL) {
	DPRINTF("cannot free unit number\n");			DPRINTF("cannot free unit %d\n", unit);
	return;			return;
	}			}
	DPRINTF("unit %d is freed\n", unit);			DPRINTF("unit %d is freed\n", unit);
	free_unr(ucom_unrhdr, unit);			free_unr(ucom_unrhdr, unit);
	}			}

	/*			/*
	* Setup a group of one or more serial ports.			* Setup a group of one or more serial ports.
	*			*
	* The mutex pointed to by "mtx" is applied before all			* The mutex pointed to by "mtx" is applied before all
	* callbacks are called back. Also "mtx" must be applied			* callbacks are called back. Also "mtx" must be applied
	* before calling into the ucom-layer!			* before calling into the ucom-layer!
	*/			*/
	int			int
	ucom_attach(struct ucom_super_softc ssc, struct ucom_softc sc,			ucom_attach(struct ucom_super_softc ssc, struct ucom_softc sc,
	int subunits, void *parent,			int subunits, void *parent,
	const struct ucom_callback callback, struct mtx mtx)			const struct ucom_callback callback, struct mtx mtx)
	{			{

				return (ucom_attach_usb(ssc, sc, subunits, parent, callback, mtx, NULL));
				}

				int
				ucom_attach_usb(struct ucom_super_softc ssc, struct ucom_softc sc,
				int subunits, void *parent,
				const struct ucom_callback callback, struct mtx mtx,
				struct usb_device *udev)
				{
	int subunit;			int subunit;
	int error = 0;			int error = 0;

	if ((sc == NULL) \|\|			if ((sc == NULL) \|\|
	(subunits <= 0) \|\|			(subunits <= 0) \|\|
	(callback == NULL) \|\|			(callback == NULL) \|\|
	(mtx == NULL)) {			(mtx == NULL)) {
	return (EINVAL);			return (EINVAL);
	}			}

	/* allocate a uniq unit number */			/* allocate a uniq unit number */
				if (ucom_location_as_unit == 0 \|\| udev == NULL) {
	ssc->sc_unit = ucom_unit_alloc();			ssc->sc_unit = ucom_unit_alloc();
				} else {
				ssc->sc_unit = usb_compute_uniq_location(udev) + UCOM_UNIT_MAX;

				/* add fallback code just in case */
				if (ssc->sc_unit < UCOM_UNIT_MAX)
				ssc->sc_unit = ucom_unit_alloc();
				DPRINTF("unit %d by location\n", location);
				rpokalaUnsubmitted Not Done Inline Actions `location` isn't a variable in this function; did you mean `ssc->sc_unit`? rpokala: `location` isn't a variable in this function; did you mean `ssc->sc_unit`?
				}
	if (ssc->sc_unit == -1)			if (ssc->sc_unit == -1)
	return (ENOMEM);			return (ENOMEM);

	/* generate TTY name string */			/* generate TTY name string */
	snprintf(ssc->sc_ttyname, sizeof(ssc->sc_ttyname),			snprintf(ssc->sc_ttyname, sizeof(ssc->sc_ttyname),
	UCOM_TTY_PREFIX "%d", ssc->sc_unit);			UCOM_TTY_PREFIX "%d", ssc->sc_unit);

	/* create USB request handling process */			/* create USB request handling process */
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