f1407d5c66
Renesas SuperH has USBHS IP which can switch Host / Function. This driver is designed so that Host / Function may dynamically change. This patch add usb/renesas_usbhs and common code for SuperH USBHS. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
149 lines
3.2 KiB
C
149 lines
3.2 KiB
C
/*
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* Renesas USB
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*
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* Copyright (C) 2011 Renesas Solutions Corp.
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* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#ifndef RENESAS_USB_H
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#define RENESAS_USB_H
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#include <linux/platform_device.h>
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#include <linux/usb/ch9.h>
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/*
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* module type
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*
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* it will be return value from get_id
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*/
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enum {
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USBHS_HOST = 0,
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USBHS_GADGET,
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USBHS_MAX,
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};
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/*
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* callback functions table for driver
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*
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* These functions are called from platform for driver.
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* Callback function's pointer will be set before
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* renesas_usbhs_platform_callback :: hardware_init was called
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*/
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struct renesas_usbhs_driver_callback {
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int (*notify_hotplug)(struct platform_device *pdev);
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};
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/*
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* callback functions for platform
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*
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* These functions are called from driver for platform
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*/
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struct renesas_usbhs_platform_callback {
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/*
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* option:
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*
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* Hardware init function for platform.
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* it is called when driver was probed.
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*/
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int (*hardware_init)(struct platform_device *pdev);
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/*
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* option:
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*
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* Hardware exit function for platform.
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* it is called when driver was removed
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*/
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void (*hardware_exit)(struct platform_device *pdev);
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/*
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* option:
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*
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* Phy reset for platform
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*/
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void (*phy_reset)(struct platform_device *pdev);
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/*
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* get USB ID function
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* - USBHS_HOST
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* - USBHS_GADGET
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*/
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int (*get_id)(struct platform_device *pdev);
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/*
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* get VBUS status function.
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*/
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int (*get_vbus)(struct platform_device *pdev);
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};
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/*
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* parameters for renesas usbhs
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*
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* some register needs USB chip specific parameters.
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* This struct show it to driver
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*/
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struct renesas_usbhs_driver_param {
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/*
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* pipe settings
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*/
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u32 *pipe_type; /* array of USB_ENDPOINT_XFER_xxx (from ep0) */
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int pipe_size; /* pipe_type array size */
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/*
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* option:
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*
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* for BUSWAIT :: BWAIT
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* */
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int buswait_bwait;
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};
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/*
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* option:
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*
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* platform information for renesas_usbhs driver.
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*/
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struct renesas_usbhs_platform_info {
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/*
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* option:
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*
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* platform set these functions before
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* call platform_add_devices if needed
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*/
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struct renesas_usbhs_platform_callback platform_callback;
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/*
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* driver set these callback functions pointer.
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* platform can use it on callback functions
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*/
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struct renesas_usbhs_driver_callback driver_callback;
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/*
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* option:
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*
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* driver use these param for some register
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*/
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struct renesas_usbhs_driver_param driver_param;
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};
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/*
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* macro for platform
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*/
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#define renesas_usbhs_get_info(pdev)\
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((struct renesas_usbhs_platform_info *)(pdev)->dev.platform_data)
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#define renesas_usbhs_call_notify_hotplug(pdev) \
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({ \
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struct renesas_usbhs_driver_callback *dc; \
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dc = &(renesas_usbhs_get_info(pdev)->driver_callback); \
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if (dc) \
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dc->notify_hotplug(pdev); \
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})
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#endif /* RENESAS_USB_H */
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