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Diffstat (limited to 'arch/arm/mach-mx23/usb.h')
| -rw-r--r-- | arch/arm/mach-mx23/usb.h | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/arch/arm/mach-mx23/usb.h b/arch/arm/mach-mx23/usb.h new file mode 100644 index 000000000000..689603d4e7d6 --- /dev/null +++ b/arch/arm/mach-mx23/usb.h @@ -0,0 +1,109 @@ +/* + * Copyright (C) 2009-2010 Freescale Semiconductor, Inc. All Rights Reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +extern int usbotg_init(struct platform_device *pdev); +extern void usbotg_uninit(struct fsl_usb2_platform_data *pdata); +extern int gpio_usbotg_utmi_active(void); +extern void gpio_usbotg_utmi_inactive(void); +extern struct platform_device *host_pdev_register(struct resource *res, + int n_res, + struct fsl_usb2_platform_data + *config); +extern void fsl_platform_set_usb_phy_dis(struct fsl_usb2_platform_data *pdata, + bool enable); +extern int fsl_usb_host_init(struct platform_device *pdev); +extern void fsl_usb_host_uninit(struct fsl_usb2_platform_data *pdata); +extern int gpio_usbh2_active(void); +extern void gpio_usbh2_inactive(void); + +/* + * Determine which platform_data struct to use for the DR controller, + * based on which transceiver is configured. + * PDATA is a pointer to it. + */ +static struct fsl_usb2_platform_data __maybe_unused dr_utmi_config; +#define PDATA (&dr_utmi_config) + +/* + * Used to set pdata->operating_mode before registering the platform_device. + * If OTG is configured, the controller operates in OTG mode, + * otherwise it's either host or device. + */ +#ifdef CONFIG_USB_OTG +#define DR_UDC_MODE FSL_USB2_DR_OTG +#define DR_HOST_MODE FSL_USB2_DR_OTG +#else +#define DR_UDC_MODE FSL_USB2_DR_DEVICE +#define DR_HOST_MODE FSL_USB2_DR_HOST +#endif + +#ifdef CONFIG_USB_EHCI_ARC_OTG +static inline void dr_register_host(struct resource *r, int rs) +{ + PDATA->operating_mode = DR_HOST_MODE; + host_pdev_register(r, rs, PDATA); +} +#else +static inline void dr_register_host(struct resource *r, int rs) +{ +} +#endif + +#ifdef CONFIG_USB_GADGET_ARC +static struct platform_device dr_udc_device; + +static inline void dr_register_udc(void) +{ + PDATA->operating_mode = DR_UDC_MODE; + dr_udc_device.dev.platform_data = PDATA; + + if (platform_device_register(&dr_udc_device)) + printk(KERN_ERR "usb: can't register DR gadget\n"); + else + printk(KERN_INFO "usb: DR gadget (%s) registered\n", + PDATA->transceiver); +} +#else +static inline void dr_register_udc(void) +{ +} +#endif + +#ifdef CONFIG_USB_OTG +static struct platform_device dr_otg_device; + +/* + * set the proper operating_mode and + * platform_data pointer, then register the + * device. + */ +static inline void dr_register_otg(void) +{ + PDATA->operating_mode = FSL_USB2_DR_OTG; + dr_otg_device.dev.platform_data = PDATA; + + if (platform_device_register(&dr_otg_device)) + printk(KERN_ERR "usb: can't register otg device\n"); + else + printk(KERN_INFO "usb: DR OTG registered\n"); +} +#else +static inline void dr_register_otg(void) +{ +} +#endif |