aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/usb/gadget/net2280.h
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--drivers/usb/gadget/net2280.h308
1 files changed, 0 insertions, 308 deletions
diff --git a/drivers/usb/gadget/net2280.h b/drivers/usb/gadget/net2280.h
deleted file mode 100644
index a844be0d683a..000000000000
--- a/drivers/usb/gadget/net2280.h
+++ /dev/null
@@ -1,308 +0,0 @@
-/*
- * NetChip 2280 high/full speed USB device controller.
- * Unlike many such controllers, this one talks PCI.
- */
-
-/*
- * Copyright (C) 2002 NetChip Technology, Inc. (http://www.netchip.com)
- * Copyright (C) 2003 David Brownell
- *
- * 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.
- */
-
-#include <linux/usb/net2280.h>
-
-/*-------------------------------------------------------------------------*/
-
-#ifdef __KERNEL__
-
-/* indexed registers [11.10] are accessed indirectly
- * caller must own the device lock.
- */
-
-static inline u32
-get_idx_reg (struct net2280_regs __iomem *regs, u32 index)
-{
- writel (index, &regs->idxaddr);
- /* NOTE: synchs device/cpu memory views */
- return readl (&regs->idxdata);
-}
-
-static inline void
-set_idx_reg (struct net2280_regs __iomem *regs, u32 index, u32 value)
-{
- writel (index, &regs->idxaddr);
- writel (value, &regs->idxdata);
- /* posted, may not be visible yet */
-}
-
-#endif /* __KERNEL__ */
-
-
-#define REG_DIAG 0x0
-#define RETRY_COUNTER 16
-#define FORCE_PCI_SERR 11
-#define FORCE_PCI_INTERRUPT 10
-#define FORCE_USB_INTERRUPT 9
-#define FORCE_CPU_INTERRUPT 8
-#define ILLEGAL_BYTE_ENABLES 5
-#define FAST_TIMES 4
-#define FORCE_RECEIVE_ERROR 2
-#define FORCE_TRANSMIT_CRC_ERROR 0
-#define REG_FRAME 0x02 /* from last sof */
-#define REG_CHIPREV 0x03 /* in bcd */
-#define REG_HS_NAK_RATE 0x0a /* NAK per N uframes */
-
-#define CHIPREV_1 0x0100
-#define CHIPREV_1A 0x0110
-
-#ifdef __KERNEL__
-
-/* ep a-f highspeed and fullspeed maxpacket, addresses
- * computed from ep->num
- */
-#define REG_EP_MAXPKT(dev,num) (((num) + 1) * 0x10 + \
- (((dev)->gadget.speed == USB_SPEED_HIGH) ? 0 : 1))
-
-/*-------------------------------------------------------------------------*/
-
-/* [8.3] for scatter/gather i/o
- * use struct net2280_dma_regs bitfields
- */
-struct net2280_dma {
- __le32 dmacount;
- __le32 dmaaddr; /* the buffer */
- __le32 dmadesc; /* next dma descriptor */
- __le32 _reserved;
-} __attribute__ ((aligned (16)));
-
-/*-------------------------------------------------------------------------*/
-
-/* DRIVER DATA STRUCTURES and UTILITIES */
-
-struct net2280_ep {
- struct usb_ep ep;
- struct net2280_ep_regs __iomem *regs;
- struct net2280_dma_regs __iomem *dma;
- struct net2280_dma *dummy;
- dma_addr_t td_dma; /* of dummy */
- struct net2280 *dev;
- unsigned long irqs;
-
- /* analogous to a host-side qh */
- struct list_head queue;
- const struct usb_endpoint_descriptor *desc;
- unsigned num : 8,
- fifo_size : 12,
- in_fifo_validate : 1,
- out_overflow : 1,
- stopped : 1,
- wedged : 1,
- is_in : 1,
- is_iso : 1,
- responded : 1;
-};
-
-static inline void allow_status (struct net2280_ep *ep)
-{
- /* ep0 only */
- writel ( (1 << CLEAR_CONTROL_STATUS_PHASE_HANDSHAKE)
- | (1 << CLEAR_NAK_OUT_PACKETS)
- | (1 << CLEAR_NAK_OUT_PACKETS_MODE)
- , &ep->regs->ep_rsp);
- ep->stopped = 1;
-}
-
-/* count (<= 4) bytes in the next fifo write will be valid */
-static inline void set_fifo_bytecount (struct net2280_ep *ep, unsigned count)
-{
- writeb (count, 2 + (u8 __iomem *) &ep->regs->ep_cfg);
-}
-
-struct net2280_request {
- struct usb_request req;
- struct net2280_dma *td;
- dma_addr_t td_dma;
- struct list_head queue;
- unsigned mapped : 1,
- valid : 1;
-};
-
-struct net2280 {
- /* each pci device provides one gadget, several endpoints */
- struct usb_gadget gadget;
- spinlock_t lock;
- struct net2280_ep ep [7];
- struct usb_gadget_driver *driver;
- unsigned enabled : 1,
- protocol_stall : 1,
- softconnect : 1,
- got_irq : 1,
- region : 1;
- u16 chiprev;
-
- /* pci state used to access those endpoints */
- struct pci_dev *pdev;
- struct net2280_regs __iomem *regs;
- struct net2280_usb_regs __iomem *usb;
- struct net2280_pci_regs __iomem *pci;
- struct net2280_dma_regs __iomem *dma;
- struct net2280_dep_regs __iomem *dep;
- struct net2280_ep_regs __iomem *epregs;
-
- struct pci_pool *requests;
- // statistics...
-};
-
-static inline void set_halt (struct net2280_ep *ep)
-{
- /* ep0 and bulk/intr endpoints */
- writel ( (1 << CLEAR_CONTROL_STATUS_PHASE_HANDSHAKE)
- /* set NAK_OUT for erratum 0114 */
- | ((ep->dev->chiprev == CHIPREV_1) << SET_NAK_OUT_PACKETS)
- | (1 << SET_ENDPOINT_HALT)
- , &ep->regs->ep_rsp);
-}
-
-static inline void clear_halt (struct net2280_ep *ep)
-{
- /* ep0 and bulk/intr endpoints */
- writel ( (1 << CLEAR_ENDPOINT_HALT)
- | (1 << CLEAR_ENDPOINT_TOGGLE)
- /* unless the gadget driver left a short packet in the
- * fifo, this reverses the erratum 0114 workaround.
- */
- | ((ep->dev->chiprev == CHIPREV_1) << CLEAR_NAK_OUT_PACKETS)
- , &ep->regs->ep_rsp);
-}
-
-#ifdef USE_RDK_LEDS
-
-static inline void net2280_led_init (struct net2280 *dev)
-{
- /* LED3 (green) is on during USB activity. note erratum 0113. */
- writel ((1 << GPIO3_LED_SELECT)
- | (1 << GPIO3_OUTPUT_ENABLE)
- | (1 << GPIO2_OUTPUT_ENABLE)
- | (1 << GPIO1_OUTPUT_ENABLE)
- | (1 << GPIO0_OUTPUT_ENABLE)
- , &dev->regs->gpioctl);
-}
-
-/* indicate speed with bi-color LED 0/1 */
-static inline
-void net2280_led_speed (struct net2280 *dev, enum usb_device_speed speed)
-{
- u32 val = readl (&dev->regs->gpioctl);
- switch (speed) {
- case USB_SPEED_HIGH: /* green */
- val &= ~(1 << GPIO0_DATA);
- val |= (1 << GPIO1_DATA);
- break;
- case USB_SPEED_FULL: /* red */
- val &= ~(1 << GPIO1_DATA);
- val |= (1 << GPIO0_DATA);
- break;
- default: /* (off/black) */
- val &= ~((1 << GPIO1_DATA) | (1 << GPIO0_DATA));
- break;
- }
- writel (val, &dev->regs->gpioctl);
-}
-
-/* indicate power with LED 2 */
-static inline void net2280_led_active (struct net2280 *dev, int is_active)
-{
- u32 val = readl (&dev->regs->gpioctl);
-
- // FIXME this LED never seems to turn on.
- if (is_active)
- val |= GPIO2_DATA;
- else
- val &= ~GPIO2_DATA;
- writel (val, &dev->regs->gpioctl);
-}
-static inline void net2280_led_shutdown (struct net2280 *dev)
-{
- /* turn off all four GPIO*_DATA bits */
- writel (readl (&dev->regs->gpioctl) & ~0x0f,
- &dev->regs->gpioctl);
-}
-
-#else
-
-#define net2280_led_init(dev) do { } while (0)
-#define net2280_led_speed(dev, speed) do { } while (0)
-#define net2280_led_shutdown(dev) do { } while (0)
-
-#endif
-
-/*-------------------------------------------------------------------------*/
-
-#define xprintk(dev,level,fmt,args...) \
- printk(level "%s %s: " fmt , driver_name , \
- pci_name(dev->pdev) , ## args)
-
-#ifdef DEBUG
-#undef DEBUG
-#define DEBUG(dev,fmt,args...) \
- xprintk(dev , KERN_DEBUG , fmt , ## args)
-#else
-#define DEBUG(dev,fmt,args...) \
- do { } while (0)
-#endif /* DEBUG */
-
-#ifdef VERBOSE
-#define VDEBUG DEBUG
-#else
-#define VDEBUG(dev,fmt,args...) \
- do { } while (0)
-#endif /* VERBOSE */
-
-#define ERROR(dev,fmt,args...) \
- xprintk(dev , KERN_ERR , fmt , ## args)
-#define WARNING(dev,fmt,args...) \
- xprintk(dev , KERN_WARNING , fmt , ## args)
-#define INFO(dev,fmt,args...) \
- xprintk(dev , KERN_INFO , fmt , ## args)
-
-/*-------------------------------------------------------------------------*/
-
-static inline void start_out_naking (struct net2280_ep *ep)
-{
- /* NOTE: hardware races lurk here, and PING protocol issues */
- writel ((1 << SET_NAK_OUT_PACKETS), &ep->regs->ep_rsp);
- /* synch with device */
- readl (&ep->regs->ep_rsp);
-}
-
-#ifdef DEBUG
-static inline void assert_out_naking (struct net2280_ep *ep, const char *where)
-{
- u32 tmp = readl (&ep->regs->ep_stat);
-
- if ((tmp & (1 << NAK_OUT_PACKETS)) == 0) {
- DEBUG (ep->dev, "%s %s %08x !NAK\n",
- ep->ep.name, where, tmp);
- writel ((1 << SET_NAK_OUT_PACKETS),
- &ep->regs->ep_rsp);
- }
-}
-#define ASSERT_OUT_NAKING(ep) assert_out_naking(ep,__func__)
-#else
-#define ASSERT_OUT_NAKING(ep) do {} while (0)
-#endif
-
-static inline void stop_out_naking (struct net2280_ep *ep)
-{
- u32 tmp;
-
- tmp = readl (&ep->regs->ep_stat);
- if ((tmp & (1 << NAK_OUT_PACKETS)) != 0)
- writel ((1 << CLEAR_NAK_OUT_PACKETS), &ep->regs->ep_rsp);
-}
-
-#endif /* __KERNEL__ */
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.