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/* * Renesas USB * * Copyright (C) 2011 Renesas Solutions Corp. * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> * * 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 St, Fifth Floor, Boston, MA 02110-1301 USA * */ #ifndef RENESAS_USB_H #define RENESAS_USB_H #include <linux/platform_device.h> #include <linux/usb/ch9.h> /* * module type * * it will be return value from get_id */ enum { USBHS_HOST = 0, USBHS_GADGET, USBHS_MAX, }; /* * callback functions table for driver * * These functions are called from platform for driver. * Callback function's pointer will be set before * renesas_usbhs_platform_callback :: hardware_init was called */ struct renesas_usbhs_driver_callback { int (*notify_hotplug)(struct platform_device *pdev); }; /* * callback functions for platform * * These functions are called from driver for platform */ struct renesas_usbhs_platform_callback { /* * option: * * Hardware init function for platform. * it is called when driver was probed. */ int (*hardware_init)(struct platform_device *pdev); /* * option: * * Hardware exit function for platform. * it is called when driver was removed */ int (*hardware_exit)(struct platform_device *pdev); /* * option: * * for board specific clock control */ int (*power_ctrl)(struct platform_device *pdev, void __iomem *base, int enable); /* * option: * * Phy reset for platform */ int (*phy_reset)(struct platform_device *pdev); /* * get USB ID function * - USBHS_HOST * - USBHS_GADGET */ int (*get_id)(struct platform_device *pdev); /* * get VBUS status function. */ int (*get_vbus)(struct platform_device *pdev); /* * option: * * VBUS control is needed for Host */ int (*set_vbus)(struct platform_device *pdev, int enable); }; /* * parameters for renesas usbhs * * some register needs USB chip specific parameters. * This struct show it to driver */ struct renesas_usbhs_driver_param { /* * pipe settings */ u32 *pipe_type; /* array of USB_ENDPOINT_XFER_xxx (from ep0) */ int pipe_size; /* pipe_type array size */ /* * option: * * for BUSWAIT :: BWAIT * see * renesas_usbhs/common.c :: usbhsc_set_buswait() * */ int buswait_bwait; /* * option: * * delay time from notify_hotplug callback */ int detection_delay; /* msec */ /* * option: * * dma id for dmaengine * The data transfer direction on D0FIFO/D1FIFO should be * fixed for keeping consistency. * So, the platform id settings will be.. * .d0_tx_id = xx_TX, * .d1_rx_id = xx_RX, * or * .d1_tx_id = xx_TX, * .d0_rx_id = xx_RX, */ int d0_tx_id; int d0_rx_id; int d1_tx_id; int d1_rx_id; /* * option: * * pio <--> dma border. */ int pio_dma_border; /* default is 64byte */ /* * option: */ u32 has_otg:1; /* for controlling PWEN/EXTLP */ u32 has_sudmac:1; /* for SUDMAC */ }; /* * option: * * platform information for renesas_usbhs driver. */ struct renesas_usbhs_platform_info { /* * option: * * platform set these functions before * call platform_add_devices if needed */ struct renesas_usbhs_platform_callback platform_callback; /* * driver set these callback functions pointer. * platform can use it on callback functions */ struct renesas_usbhs_driver_callback driver_callback; /* * option: * * driver use these param for some register */ struct renesas_usbhs_driver_param driver_param; }; /* * macro for platform */ #define renesas_usbhs_get_info(pdev)\ ((struct renesas_usbhs_platform_info *)(pdev)->dev.platform_data) #define renesas_usbhs_call_notify_hotplug(pdev) \ ({ \ struct renesas_usbhs_driver_callback *dc; \ dc = &(renesas_usbhs_get_info(pdev)->driver_callback); \ if (dc && dc->notify_hotplug) \ dc->notify_hotplug(pdev); \ }) #endif /* RENESAS_USB_H */