^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Driver for the NXP ISP1761 device controller
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright 2014 Ideas on Board Oy
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Contacts:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * Laurent Pinchart <laurent.pinchart@ideasonboard.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #ifndef _ISP1760_UDC_H_
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #define _ISP1760_UDC_H_
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/ioport.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/list.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/spinlock.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/timer.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/usb/gadget.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) struct isp1760_device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) struct isp1760_udc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) enum isp1760_ctrl_state {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) ISP1760_CTRL_SETUP, /* Waiting for a SETUP transaction */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) ISP1760_CTRL_DATA_IN, /* Setup received, data IN stage */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) ISP1760_CTRL_DATA_OUT, /* Setup received, data OUT stage */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) ISP1760_CTRL_STATUS, /* 0-length request in status stage */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) struct isp1760_ep {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) struct isp1760_udc *udc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) struct usb_ep ep;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) struct list_head queue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) unsigned int addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) unsigned int maxpacket;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) char name[7];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) const struct usb_endpoint_descriptor *desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) bool rx_pending;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) bool halted;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) bool wedged;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) * struct isp1760_udc - UDC state information
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) * irq: IRQ number
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) * irqname: IRQ name (as passed to request_irq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) * regs: Base address of the UDC registers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) * driver: Gadget driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) * gadget: Gadget device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) * lock: Protects driver, vbus_timer, ep, ep0_*, DC_EPINDEX register
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) * ep: Array of endpoints
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) * ep0_state: Control request state for endpoint 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) * ep0_dir: Direction of the current control request
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) * ep0_length: Length of the current control request
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) * connected: Tracks gadget driver bus connection state
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) struct isp1760_udc {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) #ifdef CONFIG_USB_ISP1761_UDC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) struct isp1760_device *isp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) int irq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) char *irqname;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) void __iomem *regs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) struct usb_gadget_driver *driver;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) struct usb_gadget gadget;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) spinlock_t lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) struct timer_list vbus_timer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) struct isp1760_ep ep[15];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) enum isp1760_ctrl_state ep0_state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) u8 ep0_dir;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) u16 ep0_length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) bool connected;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) unsigned int devstatus;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) #ifdef CONFIG_USB_ISP1761_UDC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) int isp1760_udc_register(struct isp1760_device *isp, int irq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) unsigned long irqflags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) void isp1760_udc_unregister(struct isp1760_device *isp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) static inline int isp1760_udc_register(struct isp1760_device *isp, int irq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) unsigned long irqflags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) static inline void isp1760_udc_unregister(struct isp1760_device *isp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) #endif
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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