+++ /dev/null
-/*
- * ISP116x HCD (Host Controller Driver) for u-boot.
- *
- * Copyright (C) 2006-2007 Rodolfo Giometti <giometti@linux.it>
- * Copyright (C) 2006-2007 Eurotech S.p.A. <info@eurotech.it>
- *
- * SPDX-License-Identifier: GPL-2.0+
- *
- * Derived in part from the SL811 HCD driver "u-boot/drivers/usb/sl811_usb.c"
- * (original copyright message follows):
- *
- * (C) Copyright 2004
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * This code is based on linux driver for sl811hs chip, source at
- * drivers/usb/host/sl811.c:
- *
- * SL811 Host Controller Interface driver for USB.
- *
- * Copyright (c) 2003/06, Courage Co., Ltd.
- *
- * Based on:
- * 1.uhci.c by Linus Torvalds, Johannes Erdfelt, Randy Dunlap,
- * Georg Acher, Deti Fliegl, Thomas Sailer, Roman Weissgaerber,
- * Adam Richter, Gregory P. Smith;
- * 2.Original SL811 driver (hc_sl811.o) by Pei Liu <pbl@cypress.com>
- * 3.Rewrited as sl811.o by Yin Aihua <yinah:couragetech.com.cn>
- *
- * [[GNU/GPL disclaimer]]
- *
- * and in part from AU1x00 OHCI HCD driver "u-boot/arch/mips/cpu/au1x00_usb_ohci.c"
- * (original copyright message follows):
- *
- * URB OHCI HCD (Host Controller Driver) for USB on the AU1x00.
- *
- * (C) Copyright 2003
- * Gary Jennejohn, DENX Software Engineering <garyj@denx.de>
- *
- * [[GNU/GPL disclaimer]]
- *
- * Note: Part of this code has been derived from linux
- */
-
-#include <common.h>
-#include <asm/io.h>
-#include <usb.h>
-#include <malloc.h>
-#include <linux/list.h>
-
-/*
- * ISP116x chips require certain delays between accesses to its
- * registers. The following timing options exist.
- *
- * 1. Configure your memory controller (the best)
- * 2. Use ndelay (easiest, poorest). For that, enable the following macro.
- *
- * Value is in microseconds.
- */
-#ifdef ISP116X_HCD_USE_UDELAY
-#define UDELAY 1
-#endif
-
-/*
- * On some (slowly?) machines an extra delay after data packing into
- * controller's FIFOs is required, * otherwise you may get the following
- * error:
- *
- * uboot> usb start
- * (Re)start USB...
- * USB: scanning bus for devices... isp116x: isp116x_submit_job: CTL:TIMEOUT
- * isp116x: isp116x_submit_job: ****** FIFO not ready! ******
- *
- * USB device not responding, giving up (status=4)
- * isp116x: isp116x_submit_job: ****** FIFO not empty! ******
- * isp116x: isp116x_submit_job: ****** FIFO not empty! ******
- * isp116x: isp116x_submit_job: ****** FIFO not empty! ******
- * 3 USB Device(s) found
- * scanning bus for storage devices... 0 Storage Device(s) found
- *
- * Value is in milliseconds.
- */
-#ifdef ISP116X_HCD_USE_EXTRA_DELAY
-#define EXTRA_DELAY 2
-#endif
-
-/*
- * Enable the following defines if you wish enable debugging messages.
- */
-#undef DEBUG /* enable debugging messages */
-#undef TRACE /* enable tracing code */
-#undef VERBOSE /* verbose debugging messages */
-
-#include "isp116x.h"
-
-#define DRIVER_VERSION "08 Jan 2007"
-static const char hcd_name[] = "isp116x-hcd";
-
-struct isp116x isp116x_dev;
-struct isp116x_platform_data isp116x_board;
-static int got_rhsc; /* root hub status change */
-struct usb_device *devgone; /* device which was disconnected */
-static int rh_devnum; /* address of Root Hub endpoint */
-
-/* ------------------------------------------------------------------------- */
-
-static int isp116x_reset(struct isp116x *isp116x);
-
-/* --- Debugging functions ------------------------------------------------- */
-
-#define isp116x_show_reg(d, r) { \
- if ((r) < 0x20) { \
- DBG("%-12s[%02x]: %08x", #r, \
- r, isp116x_read_reg32(d, r)); \
- } else { \
- DBG("%-12s[%02x]: %04x", #r, \
- r, isp116x_read_reg16(d, r)); \
- } \
-}
-
-#define isp116x_show_regs(d) { \
- isp116x_show_reg(d, HCREVISION); \
- isp116x_show_reg(d, HCCONTROL); \
- isp116x_show_reg(d, HCCMDSTAT); \
- isp116x_show_reg(d, HCINTSTAT); \
- isp116x_show_reg(d, HCINTENB); \
- isp116x_show_reg(d, HCFMINTVL); \
- isp116x_show_reg(d, HCFMREM); \
- isp116x_show_reg(d, HCFMNUM); \
- isp116x_show_reg(d, HCLSTHRESH); \
- isp116x_show_reg(d, HCRHDESCA); \
- isp116x_show_reg(d, HCRHDESCB); \
- isp116x_show_reg(d, HCRHSTATUS); \
- isp116x_show_reg(d, HCRHPORT1); \
- isp116x_show_reg(d, HCRHPORT2); \
- isp116x_show_reg(d, HCHWCFG); \
- isp116x_show_reg(d, HCDMACFG); \
- isp116x_show_reg(d, HCXFERCTR); \
- isp116x_show_reg(d, HCuPINT); \
- isp116x_show_reg(d, HCuPINTENB); \
- isp116x_show_reg(d, HCCHIPID); \
- isp116x_show_reg(d, HCSCRATCH); \
- isp116x_show_reg(d, HCITLBUFLEN); \
- isp116x_show_reg(d, HCATLBUFLEN); \
- isp116x_show_reg(d, HCBUFSTAT); \
- isp116x_show_reg(d, HCRDITL0LEN); \
- isp116x_show_reg(d, HCRDITL1LEN); \
-}
-
-#if defined(TRACE)
-
-static int isp116x_get_current_frame_number(struct usb_device *usb_dev)
-{
- struct isp116x *isp116x = &isp116x_dev;
-
- return isp116x_read_reg32(isp116x, HCFMNUM);
-}
-
-static void dump_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
- int len, char *str)
-{
-#if defined(VERBOSE)
- int i;
-#endif
-
- DBG("%s URB:[%4x] dev:%2d,ep:%2d-%c,type:%s,len:%d stat:%#lx",
- str,
- isp116x_get_current_frame_number(dev),
- usb_pipedevice(pipe),
- usb_pipeendpoint(pipe),
- usb_pipeout(pipe) ? 'O' : 'I',
- usb_pipetype(pipe) < 2 ?
- (usb_pipeint(pipe) ?
- "INTR" : "ISOC") :
- (usb_pipecontrol(pipe) ? "CTRL" : "BULK"), len, dev->status);
-#if defined(VERBOSE)
- if (len > 0 && buffer) {
- printf(__FILE__ ": data(%d):", len);
- for (i = 0; i < 16 && i < len; i++)
- printf(" %02x", ((__u8 *) buffer)[i]);
- printf("%s\n", i < len ? "..." : "");
- }
-#endif
-}
-
-#define PTD_DIR_STR(ptd) ({char __c; \
- switch(PTD_GET_DIR(ptd)){ \
- case 0: __c = 's'; break; \
- case 1: __c = 'o'; break; \
- default: __c = 'i'; break; \
- }; __c;})
-
-/*
- Dump PTD info. The code documents the format
- perfectly, right :)
-*/
-static inline void dump_ptd(struct ptd *ptd)
-{
-#if defined(VERBOSE)
- int k;
-#endif
-
- DBG("PTD(ext) : cc:%x %d%c%d %d,%d,%d t:%x %x%x%x",
- PTD_GET_CC(ptd),
- PTD_GET_FA(ptd), PTD_DIR_STR(ptd), PTD_GET_EP(ptd),
- PTD_GET_COUNT(ptd), PTD_GET_LEN(ptd), PTD_GET_MPS(ptd),
- PTD_GET_TOGGLE(ptd),
- PTD_GET_ACTIVE(ptd), PTD_GET_SPD(ptd), PTD_GET_LAST(ptd));
-#if defined(VERBOSE)
- printf("isp116x: %s: PTD(byte): ", __FUNCTION__);
- for (k = 0; k < sizeof(struct ptd); ++k)
- printf("%02x ", ((u8 *) ptd)[k]);
- printf("\n");
-#endif
-}
-
-static inline void dump_ptd_data(struct ptd *ptd, u8 * buf, int type)
-{
-#if defined(VERBOSE)
- int k;
-
- if (type == 0 /* 0ut data */ ) {
- printf("isp116x: %s: out data: ", __FUNCTION__);
- for (k = 0; k < PTD_GET_LEN(ptd); ++k)
- printf("%02x ", ((u8 *) buf)[k]);
- printf("\n");
- }
- if (type == 1 /* 1n data */ ) {
- printf("isp116x: %s: in data: ", __FUNCTION__);
- for (k = 0; k < PTD_GET_COUNT(ptd); ++k)
- printf("%02x ", ((u8 *) buf)[k]);
- printf("\n");
- }
-
- if (PTD_GET_LAST(ptd))
- DBG("--- last PTD ---");
-#endif
-}
-
-#else
-
-#define dump_msg(dev, pipe, buffer, len, str) do { } while (0)
-#define dump_pkt(dev, pipe, buffer, len, setup, str, small) do {} while (0)
-
-#define dump_ptd(ptd) do {} while (0)
-#define dump_ptd_data(ptd, buf, type) do {} while (0)
-
-#endif
-
-/* --- Virtual Root Hub ---------------------------------------------------- */
-
-#include <usbroothubdes.h>
-
-/*
- * Hub class-specific descriptor is constructed dynamically
- */
-
-/* --- Virtual root hub management functions ------------------------------- */
-
-static int rh_check_port_status(struct isp116x *isp116x)
-{
- u32 temp, ndp, i;
- int res;
-
- res = -1;
- temp = isp116x_read_reg32(isp116x, HCRHSTATUS);
- ndp = (temp & RH_A_NDP);
- for (i = 0; i < ndp; i++) {
- temp = isp116x_read_reg32(isp116x, HCRHPORT1 + i);
- /* check for a device disconnect */
- if (((temp & (RH_PS_PESC | RH_PS_CSC)) ==
- (RH_PS_PESC | RH_PS_CSC)) && ((temp & RH_PS_CCS) == 0)) {
- res = i;
- break;
- }
- }
- return res;
-}
-
-/* --- HC management functions --------------------------------------------- */
-
-/* Write len bytes to fifo, pad till 32-bit boundary
- */
-static void write_ptddata_to_fifo(struct isp116x *isp116x, void *buf, int len)
-{
- u8 *dp = (u8 *) buf;
- u16 *dp2 = (u16 *) buf;
- u16 w;
- int quot = len % 4;
-
- if ((unsigned long)dp2 & 1) {
- /* not aligned */
- for (; len > 1; len -= 2) {
- w = *dp++;
- w |= *dp++ << 8;
- isp116x_raw_write_data16(isp116x, w);
- }
- if (len)
- isp116x_write_data16(isp116x, (u16) * dp);
- } else {
- /* aligned */
- for (; len > 1; len -= 2)
- isp116x_raw_write_data16(isp116x, *dp2++);
- if (len)
- isp116x_write_data16(isp116x, 0xff & *((u8 *) dp2));
- }
- if (quot == 1 || quot == 2)
- isp116x_raw_write_data16(isp116x, 0);
-}
-
-/* Read len bytes from fifo and then read till 32-bit boundary
- */
-static void read_ptddata_from_fifo(struct isp116x *isp116x, void *buf, int len)
-{
- u8 *dp = (u8 *) buf;
- u16 *dp2 = (u16 *) buf;
- u16 w;
- int quot = len % 4;
-
- if ((unsigned long)dp2 & 1) {
- /* not aligned */
- for (; len > 1; len -= 2) {
- w = isp116x_raw_read_data16(isp116x);
- *dp++ = w & 0xff;
- *dp++ = (w >> 8) & 0xff;
- }
- if (len)
- *dp = 0xff & isp116x_read_data16(isp116x);
- } else {
- /* aligned */
- for (; len > 1; len -= 2)
- *dp2++ = isp116x_raw_read_data16(isp116x);
- if (len)
- *(u8 *) dp2 = 0xff & isp116x_read_data16(isp116x);
- }
- if (quot == 1 || quot == 2)
- isp116x_raw_read_data16(isp116x);
-}
-
-/* Write PTD's and data for scheduled transfers into the fifo ram.
- * Fifo must be empty and ready */
-static void pack_fifo(struct isp116x *isp116x, struct usb_device *dev,
- unsigned long pipe, struct ptd *ptd, int n, void *data,
- int len)
-{
- int buflen = n * sizeof(struct ptd) + len;
- int i, done;
-
- DBG("--- pack buffer %p - %d bytes (fifo %d) ---", data, len, buflen);
-
- isp116x_write_reg16(isp116x, HCuPINT, HCuPINT_AIIEOT);
- isp116x_write_reg16(isp116x, HCXFERCTR, buflen);
- isp116x_write_addr(isp116x, HCATLPORT | ISP116x_WRITE_OFFSET);
-
- done = 0;
- for (i = 0; i < n; i++) {
- DBG("i=%d - done=%d - len=%d", i, done, PTD_GET_LEN(&ptd[i]));
-
- dump_ptd(&ptd[i]);
- isp116x_write_data16(isp116x, ptd[i].count);
- isp116x_write_data16(isp116x, ptd[i].mps);
- isp116x_write_data16(isp116x, ptd[i].len);
- isp116x_write_data16(isp116x, ptd[i].faddr);
-
- dump_ptd_data(&ptd[i], (__u8 *) data + done, 0);
- write_ptddata_to_fifo(isp116x,
- (__u8 *) data + done,
- PTD_GET_LEN(&ptd[i]));
-
- done += PTD_GET_LEN(&ptd[i]);
- }
-}
-
-/* Read the processed PTD's and data from fifo ram back to URBs' buffers.
- * Fifo must be full and done */
-static int unpack_fifo(struct isp116x *isp116x, struct usb_device *dev,
- unsigned long pipe, struct ptd *ptd, int n, void *data,
- int len)
-{
- int buflen = n * sizeof(struct ptd) + len;
- int i, done, cc, ret;
-
- isp116x_write_reg16(isp116x, HCuPINT, HCuPINT_AIIEOT);
- isp116x_write_reg16(isp116x, HCXFERCTR, buflen);
- isp116x_write_addr(isp116x, HCATLPORT);
-
- ret = TD_CC_NOERROR;
- done = 0;
- for (i = 0; i < n; i++) {
- DBG("i=%d - done=%d - len=%d", i, done, PTD_GET_LEN(&ptd[i]));
-
- ptd[i].count = isp116x_read_data16(isp116x);
- ptd[i].mps = isp116x_read_data16(isp116x);
- ptd[i].len = isp116x_read_data16(isp116x);
- ptd[i].faddr = isp116x_read_data16(isp116x);
- dump_ptd(&ptd[i]);
-
- read_ptddata_from_fifo(isp116x,
- (__u8 *) data + done,
- PTD_GET_LEN(&ptd[i]));
- dump_ptd_data(&ptd[i], (__u8 *) data + done, 1);
-
- done += PTD_GET_LEN(&ptd[i]);
-
- cc = PTD_GET_CC(&ptd[i]);
-
- /* Data underrun means basically that we had more buffer space than
- * the function had data. It is perfectly normal but upper levels have
- * to know how much we actually transferred.
- */
- if (cc == TD_NOTACCESSED ||
- (cc != TD_CC_NOERROR && (ret == TD_CC_NOERROR || ret == TD_DATAUNDERRUN)))
- ret = cc;
- }
-
- DBG("--- unpack buffer %p - %d bytes (fifo %d) ---", data, len, buflen);
-
- return ret;
-}
-
-/* Interrupt handling
- */
-static int isp116x_interrupt(struct isp116x *isp116x)
-{
- u16 irqstat;
- u32 intstat;
- int ret = 0;
-
- isp116x_write_reg16(isp116x, HCuPINTENB, 0);
- irqstat = isp116x_read_reg16(isp116x, HCuPINT);
- isp116x_write_reg16(isp116x, HCuPINT, irqstat);
- DBG("------ irqstat %x ------", irqstat);
-
- if (irqstat & HCuPINT_ATL) {
- DBG("------ HCuPINT_ATL ------");
- udelay(500);
- ret = 1;
- }
-
- if (irqstat & HCuPINT_OPR) {
- intstat = isp116x_read_reg32(isp116x, HCINTSTAT);
- isp116x_write_reg32(isp116x, HCINTSTAT, intstat);
- DBG("------ HCuPINT_OPR %x ------", intstat);
-
- if (intstat & HCINT_UE) {
- ERR("unrecoverable error, controller disabled");
-
- /* FIXME: be optimistic, hope that bug won't repeat
- * often. Make some non-interrupt context restart the
- * controller. Count and limit the retries though;
- * either hardware or software errors can go forever...
- */
- isp116x_reset(isp116x);
- ret = -1;
- return -1;
- }
-
- if (intstat & HCINT_RHSC) {
- got_rhsc = 1;
- ret = 1;
- /* When root hub or any of its ports is going
- to come out of suspend, it may take more
- than 10ms for status bits to stabilize. */
- mdelay(20);
- }
-
- if (intstat & HCINT_SO) {
- ERR("schedule overrun");
- ret = -1;
- }
-
- irqstat &= ~HCuPINT_OPR;
- }
-
- return ret;
-}
-
-/* With one PTD we can transfer almost 1K in one go;
- * HC does the splitting into endpoint digestible transactions
- */
-struct ptd ptd[1];
-
-static inline int max_transfer_len(struct usb_device *dev, unsigned long pipe)
-{
- unsigned mpck = usb_maxpacket(dev, pipe);
-
- /* One PTD can transfer 1023 bytes but try to always
- * transfer multiples of endpoint buffer size
- */
- return 1023 / mpck * mpck;
-}
-
-/* Do an USB transfer
- */
-static int isp116x_submit_job(struct usb_device *dev, unsigned long pipe,
- int dir, void *buffer, int len)
-{
- struct isp116x *isp116x = &isp116x_dev;
- int type = usb_pipetype(pipe);
- int epnum = usb_pipeendpoint(pipe);
- int max = usb_maxpacket(dev, pipe);
- int dir_out = usb_pipeout(pipe);
- int speed_low = (dev->speed == USB_SPEED_LOW);
- int i, done = 0, stat, timeout, cc;
-
- /* 500 frames or 0.5s timeout when function is busy and NAKs transactions for a while */
- int retries = 500;
-
- DBG("------------------------------------------------");
- dump_msg(dev, pipe, buffer, len, "SUBMIT");
- DBG("------------------------------------------------");
-
- if (len >= 1024) {
- ERR("Too big job");
- dev->status = USB_ST_CRC_ERR;
- return -1;
- }
-
- if (isp116x->disabled) {
- ERR("EPIPE");
- dev->status = USB_ST_CRC_ERR;
- return -1;
- }
-
- /* device pulled? Shortcut the action. */
- if (devgone == dev) {
- ERR("ENODEV");
- dev->status = USB_ST_CRC_ERR;
- return USB_ST_CRC_ERR;
- }
-
- if (!max) {
- ERR("pipesize for pipe %lx is zero", pipe);
- dev->status = USB_ST_CRC_ERR;
- return -1;
- }
-
- if (type == PIPE_ISOCHRONOUS) {
- ERR("isochronous transfers not supported");
- dev->status = USB_ST_CRC_ERR;
- return -1;
- }
-
- /* FIFO not empty? */
- if (isp116x_read_reg16(isp116x, HCBUFSTAT) & HCBUFSTAT_ATL_FULL) {
- ERR("****** FIFO not empty! ******");
- dev->status = USB_ST_BUF_ERR;
- return -1;
- }
-
- retry:
- isp116x_write_reg32(isp116x, HCINTSTAT, 0xff);
-
- /* Prepare the PTD data */
- ptd->count = PTD_CC_MSK | PTD_ACTIVE_MSK |
- PTD_TOGGLE(usb_gettoggle(dev, epnum, dir_out));
- ptd->mps = PTD_MPS(max) | PTD_SPD(speed_low) | PTD_EP(epnum) | PTD_LAST_MSK;
- ptd->len = PTD_LEN(len) | PTD_DIR(dir);
- ptd->faddr = PTD_FA(usb_pipedevice(pipe));
-
-retry_same:
- /* Pack data into FIFO ram */
- pack_fifo(isp116x, dev, pipe, ptd, 1, buffer, len);
-#ifdef EXTRA_DELAY
- mdelay(EXTRA_DELAY);
-#endif
-
- /* Start the data transfer */
-
- /* Allow more time for a BULK device to react - some are slow */
- if (usb_pipebulk(pipe))
- timeout = 5000;
- else
- timeout = 100;
-
- /* Wait for it to complete */
- for (;;) {
- /* Check whether the controller is done */
- stat = isp116x_interrupt(isp116x);
-
- if (stat < 0) {
- dev->status = USB_ST_CRC_ERR;
- break;
- }
- if (stat > 0)
- break;
-
- /* Check the timeout */
- if (--timeout)
- udelay(1);
- else {
- ERR("CTL:TIMEOUT ");
- stat = USB_ST_CRC_ERR;
- break;
- }
- }
-
- /* We got an Root Hub Status Change interrupt */
- if (got_rhsc) {
- isp116x_show_regs(isp116x);
-
- got_rhsc = 0;
-
- /* Abuse timeout */
- timeout = rh_check_port_status(isp116x);
- if (timeout >= 0) {
- /*
- * FIXME! NOTE! AAAARGH!
- * This is potentially dangerous because it assumes
- * that only one device is ever plugged in!
- */
- devgone = dev;
- }
- }
-
- /* Ok, now we can read transfer status */
-
- /* FIFO not ready? */
- if (!(isp116x_read_reg16(isp116x, HCBUFSTAT) & HCBUFSTAT_ATL_DONE)) {
- ERR("****** FIFO not ready! ******");
- dev->status = USB_ST_BUF_ERR;
- return -1;
- }
-
- /* Unpack data from FIFO ram */
- cc = unpack_fifo(isp116x, dev, pipe, ptd, 1, buffer, len);
-
- i = PTD_GET_COUNT(ptd);
- done += i;
- buffer += i;
- len -= i;
-
- /* There was some kind of real problem; Prepare the PTD again
- * and retry from the failed transaction on
- */
- if (cc && cc != TD_NOTACCESSED && cc != TD_DATAUNDERRUN) {
- if (retries >= 100) {
- retries -= 100;
- /* The chip will have toggled the toggle bit for the failed
- * transaction too. We have to toggle it back.
- */
- usb_settoggle(dev, epnum, dir_out, !PTD_GET_TOGGLE(ptd));
- goto retry;
- }
- }
- /* "Normal" errors; TD_NOTACCESSED would mean in effect that the function have NAKed
- * the transactions from the first on for the whole frame. It may be busy and we retry
- * with the same PTD. PTD_ACTIVE (and not TD_NOTACCESSED) would mean that some of the
- * PTD didn't make it because the function was busy or the frame ended before the PTD
- * finished. We prepare the rest of the data and try again.
- */
- else if (cc == TD_NOTACCESSED || PTD_GET_ACTIVE(ptd) || (cc != TD_DATAUNDERRUN && PTD_GET_COUNT(ptd) < PTD_GET_LEN(ptd))) {
- if (retries) {
- --retries;
- if (cc == TD_NOTACCESSED && PTD_GET_ACTIVE(ptd) && !PTD_GET_COUNT(ptd)) goto retry_same;
- usb_settoggle(dev, epnum, dir_out, PTD_GET_TOGGLE(ptd));
- goto retry;
- }
- }
-
- if (cc != TD_CC_NOERROR && cc != TD_DATAUNDERRUN) {
- DBG("****** completition code error %x ******", cc);
- switch (cc) {
- case TD_CC_BITSTUFFING:
- dev->status = USB_ST_BIT_ERR;
- break;
- case TD_CC_STALL:
- dev->status = USB_ST_STALLED;
- break;
- case TD_BUFFEROVERRUN:
- case TD_BUFFERUNDERRUN:
- dev->status = USB_ST_BUF_ERR;
- break;
- default:
- dev->status = USB_ST_CRC_ERR;
- }
- return -cc;
- }
- else usb_settoggle(dev, epnum, dir_out, PTD_GET_TOGGLE(ptd));
-
- dump_msg(dev, pipe, buffer, len, "SUBMIT(ret)");
-
- dev->status = 0;
- return done;
-}
-
-/* Adapted from au1x00_usb_ohci.c
- */
-static int isp116x_submit_rh_msg(struct usb_device *dev, unsigned long pipe,
- void *buffer, int transfer_len,
- struct devrequest *cmd)
-{
- struct isp116x *isp116x = &isp116x_dev;
- u32 tmp = 0;
-
- int leni = transfer_len;
- int len = 0;
- int stat = 0;
- u32 datab[4];
- u8 *data_buf = (u8 *) datab;
- u16 bmRType_bReq;
- u16 wValue;
- u16 wIndex;
- u16 wLength;
-
- if (usb_pipeint(pipe)) {
- INFO("Root-Hub submit IRQ: NOT implemented");
- return 0;
- }
-
- bmRType_bReq = cmd->requesttype | (cmd->request << 8);
- wValue = swap_16(cmd->value);
- wIndex = swap_16(cmd->index);
- wLength = swap_16(cmd->length);
-
- DBG("--- HUB ----------------------------------------");
- DBG("submit rh urb, req=%x val=%#x index=%#x len=%d",
- bmRType_bReq, wValue, wIndex, wLength);
- dump_msg(dev, pipe, buffer, transfer_len, "RH");
- DBG("------------------------------------------------");
-
- switch (bmRType_bReq) {
- case RH_GET_STATUS:
- DBG("RH_GET_STATUS");
-
- *(__u16 *) data_buf = swap_16(1);
- len = 2;
- break;
-
- case RH_GET_STATUS | RH_INTERFACE:
- DBG("RH_GET_STATUS | RH_INTERFACE");
-
- *(__u16 *) data_buf = swap_16(0);
- len = 2;
- break;
-
- case RH_GET_STATUS | RH_ENDPOINT:
- DBG("RH_GET_STATUS | RH_ENDPOINT");
-
- *(__u16 *) data_buf = swap_16(0);
- len = 2;
- break;
-
- case RH_GET_STATUS | RH_CLASS:
- DBG("RH_GET_STATUS | RH_CLASS");
-
- tmp = isp116x_read_reg32(isp116x, HCRHSTATUS);
-
- *(__u32 *) data_buf = swap_32(tmp & ~(RH_HS_CRWE | RH_HS_DRWE));
- len = 4;
- break;
-
- case RH_GET_STATUS | RH_OTHER | RH_CLASS:
- DBG("RH_GET_STATUS | RH_OTHER | RH_CLASS");
-
- tmp = isp116x_read_reg32(isp116x, HCRHPORT1 + wIndex - 1);
- *(__u32 *) data_buf = swap_32(tmp);
- isp116x_show_regs(isp116x);
- len = 4;
- break;
-
- case RH_CLEAR_FEATURE | RH_ENDPOINT:
- DBG("RH_CLEAR_FEATURE | RH_ENDPOINT");
-
- switch (wValue) {
- case RH_ENDPOINT_STALL:
- DBG("C_HUB_ENDPOINT_STALL");
- len = 0;
- break;
- }
- break;
-
- case RH_CLEAR_FEATURE | RH_CLASS:
- DBG("RH_CLEAR_FEATURE | RH_CLASS");
-
- switch (wValue) {
- case RH_C_HUB_LOCAL_POWER:
- DBG("C_HUB_LOCAL_POWER");
- len = 0;
- break;
-
- case RH_C_HUB_OVER_CURRENT:
- DBG("C_HUB_OVER_CURRENT");
- isp116x_write_reg32(isp116x, HCRHSTATUS, RH_HS_OCIC);
- len = 0;
- break;
- }
- break;
-
- case RH_CLEAR_FEATURE | RH_OTHER | RH_CLASS:
- DBG("RH_CLEAR_FEATURE | RH_OTHER | RH_CLASS");
-
- switch (wValue) {
- case RH_PORT_ENABLE:
- isp116x_write_reg32(isp116x, HCRHPORT1 + wIndex - 1,
- RH_PS_CCS);
- len = 0;
- break;
-
- case RH_PORT_SUSPEND:
- isp116x_write_reg32(isp116x, HCRHPORT1 + wIndex - 1,
- RH_PS_POCI);
- len = 0;
- break;
-
- case RH_PORT_POWER:
- isp116x_write_reg32(isp116x, HCRHPORT1 + wIndex - 1,
- RH_PS_LSDA);
- len = 0;
- break;
-
- case RH_C_PORT_CONNECTION:
- isp116x_write_reg32(isp116x, HCRHPORT1 + wIndex - 1,
- RH_PS_CSC);
- len = 0;
- break;
-
- case RH_C_PORT_ENABLE:
- isp116x_write_reg32(isp116x, HCRHPORT1 + wIndex - 1,
- RH_PS_PESC);
- len = 0;
- break;
-
- case RH_C_PORT_SUSPEND:
- isp116x_write_reg32(isp116x, HCRHPORT1 + wIndex - 1,
- RH_PS_PSSC);
- len = 0;
- break;
-
- case RH_C_PORT_OVER_CURRENT:
- isp116x_write_reg32(isp116x, HCRHPORT1 + wIndex - 1,
- RH_PS_POCI);
- len = 0;
- break;
-
- case RH_C_PORT_RESET:
- isp116x_write_reg32(isp116x, HCRHPORT1 + wIndex - 1,
- RH_PS_PRSC);
- len = 0;
- break;
-
- default:
- ERR("invalid wValue");
- stat = USB_ST_STALLED;
- }
-
- isp116x_show_regs(isp116x);
-
- break;
-
- case RH_SET_FEATURE | RH_OTHER | RH_CLASS:
- DBG("RH_SET_FEATURE | RH_OTHER | RH_CLASS");
-
- switch (wValue) {
- case RH_PORT_SUSPEND:
- isp116x_write_reg32(isp116x, HCRHPORT1 + wIndex - 1,
- RH_PS_PSS);
- len = 0;
- break;
-
- case RH_PORT_RESET:
- /* Spin until any current reset finishes */
- while (1) {
- tmp =
- isp116x_read_reg32(isp116x,
- HCRHPORT1 + wIndex - 1);
- if (!(tmp & RH_PS_PRS))
- break;
- mdelay(1);
- }
- isp116x_write_reg32(isp116x, HCRHPORT1 + wIndex - 1,
- RH_PS_PRS);
- mdelay(10);
-
- len = 0;
- break;
-
- case RH_PORT_POWER:
- isp116x_write_reg32(isp116x, HCRHPORT1 + wIndex - 1,
- RH_PS_PPS);
- len = 0;
- break;
-
- case RH_PORT_ENABLE:
- isp116x_write_reg32(isp116x, HCRHPORT1 + wIndex - 1,
- RH_PS_PES);
- len = 0;
- break;
-
- default:
- ERR("invalid wValue");
- stat = USB_ST_STALLED;
- }
-
- isp116x_show_regs(isp116x);
-
- break;
-
- case RH_SET_ADDRESS:
- DBG("RH_SET_ADDRESS");
-
- rh_devnum = wValue;
- len = 0;
- break;
-
- case RH_GET_DESCRIPTOR:
- DBG("RH_GET_DESCRIPTOR: %x, %d", wValue, wLength);
-
- switch (wValue) {
- case (USB_DT_DEVICE << 8): /* device descriptor */
- len = min_t(unsigned int,
- leni, min_t(unsigned int,
- sizeof(root_hub_dev_des),
- wLength));
- data_buf = root_hub_dev_des;
- break;
-
- case (USB_DT_CONFIG << 8): /* configuration descriptor */
- len = min_t(unsigned int,
- leni, min_t(unsigned int,
- sizeof(root_hub_config_des),
- wLength));
- data_buf = root_hub_config_des;
- break;
-
- case ((USB_DT_STRING << 8) | 0x00): /* string 0 descriptors */
- len = min_t(unsigned int,
- leni, min_t(unsigned int,
- sizeof(root_hub_str_index0),
- wLength));
- data_buf = root_hub_str_index0;
- break;
-
- case ((USB_DT_STRING << 8) | 0x01): /* string 1 descriptors */
- len = min_t(unsigned int,
- leni, min_t(unsigned int,
- sizeof(root_hub_str_index1),
- wLength));
- data_buf = root_hub_str_index1;
- break;
-
- default:
- ERR("invalid wValue");
- stat = USB_ST_STALLED;
- }
-
- break;
-
- case RH_GET_DESCRIPTOR | RH_CLASS:
- DBG("RH_GET_DESCRIPTOR | RH_CLASS");
-
- tmp = isp116x_read_reg32(isp116x, HCRHDESCA);
-
- data_buf[0] = 0x09; /* min length; */
- data_buf[1] = 0x29;
- data_buf[2] = tmp & RH_A_NDP;
- data_buf[3] = 0;
- if (tmp & RH_A_PSM) /* per-port power switching? */
- data_buf[3] |= 0x01;
- if (tmp & RH_A_NOCP) /* no overcurrent reporting? */
- data_buf[3] |= 0x10;
- else if (tmp & RH_A_OCPM) /* per-port overcurrent rep? */
- data_buf[3] |= 0x08;
-
- /* Corresponds to data_buf[4-7] */
- datab[1] = 0;
- data_buf[5] = (tmp & RH_A_POTPGT) >> 24;
-
- tmp = isp116x_read_reg32(isp116x, HCRHDESCB);
-
- data_buf[7] = tmp & RH_B_DR;
- if (data_buf[2] < 7)
- data_buf[8] = 0xff;
- else {
- data_buf[0] += 2;
- data_buf[8] = (tmp & RH_B_DR) >> 8;
- data_buf[10] = data_buf[9] = 0xff;
- }
-
- len = min_t(unsigned int, leni,
- min_t(unsigned int, data_buf[0], wLength));
- break;
-
- case RH_GET_CONFIGURATION:
- DBG("RH_GET_CONFIGURATION");
-
- *(__u8 *) data_buf = 0x01;
- len = 1;
- break;
-
- case RH_SET_CONFIGURATION:
- DBG("RH_SET_CONFIGURATION");
-
- isp116x_write_reg32(isp116x, HCRHSTATUS, RH_HS_LPSC);
- len = 0;
- break;
-
- default:
- ERR("*** *** *** unsupported root hub command *** *** ***");
- stat = USB_ST_STALLED;
- }
-
- len = min_t(int, len, leni);
- if (buffer != data_buf)
- memcpy(buffer, data_buf, len);
-
- dev->act_len = len;
- dev->status = stat;
- DBG("dev act_len %d, status %d", dev->act_len, dev->status);
-
- dump_msg(dev, pipe, buffer, transfer_len, "RH(ret)");
-
- return stat;
-}
-
-/* --- Transfer functions -------------------------------------------------- */
-
-int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
- int len, int interval)
-{
- DBG("dev=%p pipe=%#lx buf=%p size=%d int=%d",
- dev, pipe, buffer, len, interval);
-
- return -1;
-}
-
-int submit_control_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
- int len, struct devrequest *setup)
-{
- int devnum = usb_pipedevice(pipe);
- int epnum = usb_pipeendpoint(pipe);
- int max = max_transfer_len(dev, pipe);
- int dir_in = usb_pipein(pipe);
- int done, ret;
-
- /* Control message is for the HUB? */
- if (devnum == rh_devnum)
- return isp116x_submit_rh_msg(dev, pipe, buffer, len, setup);
-
- /* Ok, no HUB message so send the message to the device */
-
- /* Setup phase */
- DBG("--- SETUP PHASE --------------------------------");
- usb_settoggle(dev, epnum, 1, 0);
- ret = isp116x_submit_job(dev, pipe,
- PTD_DIR_SETUP,
- setup, sizeof(struct devrequest));
- if (ret < 0) {
- DBG("control setup phase error (ret = %d", ret);
- return -1;
- }
-
- /* Data phase */
- DBG("--- DATA PHASE ---------------------------------");
- done = 0;
- usb_settoggle(dev, epnum, !dir_in, 1);
- while (done < len) {
- ret = isp116x_submit_job(dev, pipe,
- dir_in ? PTD_DIR_IN : PTD_DIR_OUT,
- (__u8 *) buffer + done,
- max > len - done ? len - done : max);
- if (ret < 0) {
- DBG("control data phase error (ret = %d)", ret);
- return -1;
- }
- done += ret;
-
- if (dir_in && ret < max) /* short packet */
- break;
- }
-
- /* Status phase */
- DBG("--- STATUS PHASE -------------------------------");
- usb_settoggle(dev, epnum, !dir_in, 1);
- ret = isp116x_submit_job(dev, pipe,
- !dir_in ? PTD_DIR_IN : PTD_DIR_OUT, NULL, 0);
- if (ret < 0) {
- DBG("control status phase error (ret = %d", ret);
- return -1;
- }
-
- dev->act_len = done;
-
- dump_msg(dev, pipe, buffer, len, "DEV(ret)");
-
- return done;
-}
-
-int submit_bulk_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
- int len)
-{
- int dir_out = usb_pipeout(pipe);
- int max = max_transfer_len(dev, pipe);
- int done, ret;
-
- DBG("--- BULK ---------------------------------------");
- DBG("dev=%ld pipe=%ld buf=%p size=%d dir_out=%d",
- usb_pipedevice(pipe), usb_pipeendpoint(pipe), buffer, len, dir_out);
-
- done = 0;
- while (done < len) {
- ret = isp116x_submit_job(dev, pipe,
- !dir_out ? PTD_DIR_IN : PTD_DIR_OUT,
- (__u8 *) buffer + done,
- max > len - done ? len - done : max);
- if (ret < 0) {
- DBG("error on bulk message (ret = %d)", ret);
- return -1;
- }
-
- done += ret;
-
- if (!dir_out && ret < max) /* short packet */
- break;
- }
-
- dev->act_len = done;
-
- return 0;
-}
-
-/* --- Basic functions ----------------------------------------------------- */
-
-static int isp116x_sw_reset(struct isp116x *isp116x)
-{
- int retries = 15;
- int ret = 0;
-
- DBG("");
-
- isp116x->disabled = 1;
-
- isp116x_write_reg16(isp116x, HCSWRES, HCSWRES_MAGIC);
- isp116x_write_reg32(isp116x, HCCMDSTAT, HCCMDSTAT_HCR);
- while (--retries) {
- /* It usually resets within 1 ms */
- mdelay(1);
- if (!(isp116x_read_reg32(isp116x, HCCMDSTAT) & HCCMDSTAT_HCR))
- break;
- }
- if (!retries) {
- ERR("software reset timeout");
- ret = -1;
- }
- return ret;
-}
-
-static int isp116x_reset(struct isp116x *isp116x)
-{
- unsigned long t;
- u16 clkrdy = 0;
- int ret, timeout = 15 /* ms */ ;
-
- DBG("");
-
- ret = isp116x_sw_reset(isp116x);
- if (ret)
- return ret;
-
- for (t = 0; t < timeout; t++) {
- clkrdy = isp116x_read_reg16(isp116x, HCuPINT) & HCuPINT_CLKRDY;
- if (clkrdy)
- break;
- mdelay(1);
- }
- if (!clkrdy) {
- ERR("clock not ready after %dms", timeout);
- /* After sw_reset the clock won't report to be ready, if
- H_WAKEUP pin is high. */
- ERR("please make sure that the H_WAKEUP pin is pulled low!");
- ret = -1;
- }
- return ret;
-}
-
-static void isp116x_stop(struct isp116x *isp116x)
-{
- u32 val;
-
- DBG("");
-
- isp116x_write_reg16(isp116x, HCuPINTENB, 0);
-
- /* Switch off ports' power, some devices don't come up
- after next 'start' without this */
- val = isp116x_read_reg32(isp116x, HCRHDESCA);
- val &= ~(RH_A_NPS | RH_A_PSM);
- isp116x_write_reg32(isp116x, HCRHDESCA, val);
- isp116x_write_reg32(isp116x, HCRHSTATUS, RH_HS_LPS);
-
- isp116x_sw_reset(isp116x);
-}
-
-/*
- * Configure the chip. The chip must be successfully reset by now.
- */
-static int isp116x_start(struct isp116x *isp116x)
-{
- struct isp116x_platform_data *board = isp116x->board;
- u32 val;
-
- DBG("");
-
- /* Clear interrupt status and disable all interrupt sources */
- isp116x_write_reg16(isp116x, HCuPINT, 0xff);
- isp116x_write_reg16(isp116x, HCuPINTENB, 0);
-
- isp116x_write_reg16(isp116x, HCITLBUFLEN, ISP116x_ITL_BUFSIZE);
- isp116x_write_reg16(isp116x, HCATLBUFLEN, ISP116x_ATL_BUFSIZE);
-
- /* Hardware configuration */
- val = HCHWCFG_DBWIDTH(1);
- if (board->sel15Kres)
- val |= HCHWCFG_15KRSEL;
- /* Remote wakeup won't work without working clock */
- if (board->remote_wakeup_enable)
- val |= HCHWCFG_CLKNOTSTOP;
- if (board->oc_enable)
- val |= HCHWCFG_ANALOG_OC;
- isp116x_write_reg16(isp116x, HCHWCFG, val);
-
- /* --- Root hub configuration */
- val = (25 << 24) & RH_A_POTPGT;
- /* AN10003_1.pdf recommends RH_A_NPS (no power switching) to
- be always set. Yet, instead, we request individual port
- power switching. */
- val |= RH_A_PSM;
- /* Report overcurrent per port */
- val |= RH_A_OCPM;
- isp116x_write_reg32(isp116x, HCRHDESCA, val);
- isp116x->rhdesca = isp116x_read_reg32(isp116x, HCRHDESCA);
-
- val = RH_B_PPCM;
- isp116x_write_reg32(isp116x, HCRHDESCB, val);
- isp116x->rhdescb = isp116x_read_reg32(isp116x, HCRHDESCB);
-
- val = 0;
- if (board->remote_wakeup_enable)
- val |= RH_HS_DRWE;
- isp116x_write_reg32(isp116x, HCRHSTATUS, val);
- isp116x->rhstatus = isp116x_read_reg32(isp116x, HCRHSTATUS);
-
- isp116x_write_reg32(isp116x, HCFMINTVL, 0x27782edf);
-
- /* Go operational */
- val = HCCONTROL_USB_OPER;
- if (board->remote_wakeup_enable)
- val |= HCCONTROL_RWE;
- isp116x_write_reg32(isp116x, HCCONTROL, val);
-
- /* Disable ports to avoid race in device enumeration */
- isp116x_write_reg32(isp116x, HCRHPORT1, RH_PS_CCS);
- isp116x_write_reg32(isp116x, HCRHPORT2, RH_PS_CCS);
-
- isp116x_show_regs(isp116x);
-
- isp116x->disabled = 0;
-
- return 0;
-}
-
-/* --- Init functions ------------------------------------------------------ */
-
-int isp116x_check_id(struct isp116x *isp116x)
-{
- int val;
-
- val = isp116x_read_reg16(isp116x, HCCHIPID);
- if ((val & HCCHIPID_MASK) != HCCHIPID_MAGIC) {
- ERR("invalid chip ID %04x", val);
- return -1;
- }
-
- return 0;
-}
-
-int usb_lowlevel_init(int index, enum usb_init_type init, void **controller))
-{
- struct isp116x *isp116x = &isp116x_dev;
-
- DBG("");
-
- got_rhsc = rh_devnum = 0;
-
- /* Init device registers addr */
- isp116x->addr_reg = (u16 *) ISP116X_HCD_ADDR;
- isp116x->data_reg = (u16 *) ISP116X_HCD_DATA;
-
- /* Setup specific board settings */
-#ifdef ISP116X_HCD_SEL15kRES
- isp116x_board.sel15Kres = 1;
-#endif
-#ifdef ISP116X_HCD_OC_ENABLE
- isp116x_board.oc_enable = 1;
-#endif
-#ifdef ISP116X_HCD_REMOTE_WAKEUP_ENABLE
- isp116x_board.remote_wakeup_enable = 1;
-#endif
- isp116x->board = &isp116x_board;
-
- /* Try to get ISP116x silicon chip ID */
- if (isp116x_check_id(isp116x) < 0)
- return -1;
-
- isp116x->disabled = 1;
- isp116x->sleeping = 0;
-
- isp116x_reset(isp116x);
- isp116x_start(isp116x);
-
- return 0;
-}
-
-int usb_lowlevel_stop(int index)
-{
- struct isp116x *isp116x = &isp116x_dev;
-
- DBG("");
-
- if (!isp116x->disabled)
- isp116x_stop(isp116x);
-
- return 0;
-}
+++ /dev/null
-/*
- * ISP116x register declarations and HCD data structures
- *
- * Copyright (C) 2007 Rodolfo Giometti <giometti@linux.it>
- * Copyright (C) 2007 Eurotech S.p.A. <info@eurotech.it>
- * Copyright (C) 2005 Olav Kongas <ok@artecdesign.ee>
- * Portions:
- * Copyright (C) 2004 Lothar Wassmann
- * Copyright (C) 2004 Psion Teklogix
- * Copyright (C) 2004 David Brownell
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#ifdef DEBUG
-#define DBG(fmt, args...) \
- printf("isp116x: %s: " fmt "\n" , __FUNCTION__ , ## args)
-#else
-#define DBG(fmt, args...) do {} while (0)
-#endif
-
-#ifdef VERBOSE
-# define VDBG DBG
-#else
-# define VDBG(fmt, args...) do {} while (0)
-#endif
-
-#define ERR(fmt, args...) \
- printf("isp116x: %s: " fmt "\n" , __FUNCTION__ , ## args)
-#define WARN(fmt, args...) \
- printf("isp116x: %s: " fmt "\n" , __FUNCTION__ , ## args)
-#define INFO(fmt, args...) \
- printf("isp116x: " fmt "\n" , ## args)
-
-/* ------------------------------------------------------------------------- */
-
-/* us of 1ms frame */
-#define MAX_LOAD_LIMIT 850
-
-/* Full speed: max # of bytes to transfer for a single urb
- at a time must be < 1024 && must be multiple of 64.
- 832 allows transfering 4kiB within 5 frames. */
-#define MAX_TRANSFER_SIZE_FULLSPEED 832
-
-/* Low speed: there is no reason to schedule in very big
- chunks; often the requested long transfers are for
- string descriptors containing short strings. */
-#define MAX_TRANSFER_SIZE_LOWSPEED 64
-
-/* Bytetime (us), a rough indication of how much time it
- would take to transfer a byte of useful data over USB */
-#define BYTE_TIME_FULLSPEED 1
-#define BYTE_TIME_LOWSPEED 20
-
-/* Buffer sizes */
-#define ISP116x_BUF_SIZE 4096
-#define ISP116x_ITL_BUFSIZE 0
-#define ISP116x_ATL_BUFSIZE ((ISP116x_BUF_SIZE) - 2*(ISP116x_ITL_BUFSIZE))
-
-#define ISP116x_WRITE_OFFSET 0x80
-
-/* --- ISP116x registers/bits ---------------------------------------------- */
-
-#define HCREVISION 0x00
-#define HCCONTROL 0x01
-#define HCCONTROL_HCFS (3 << 6) /* host controller
- functional state */
-#define HCCONTROL_USB_RESET (0 << 6)
-#define HCCONTROL_USB_RESUME (1 << 6)
-#define HCCONTROL_USB_OPER (2 << 6)
-#define HCCONTROL_USB_SUSPEND (3 << 6)
-#define HCCONTROL_RWC (1 << 9) /* remote wakeup connected */
-#define HCCONTROL_RWE (1 << 10) /* remote wakeup enable */
-#define HCCMDSTAT 0x02
-#define HCCMDSTAT_HCR (1 << 0) /* host controller reset */
-#define HCCMDSTAT_SOC (3 << 16) /* scheduling overrun count */
-#define HCINTSTAT 0x03
-#define HCINT_SO (1 << 0) /* scheduling overrun */
-#define HCINT_WDH (1 << 1) /* writeback of done_head */
-#define HCINT_SF (1 << 2) /* start frame */
-#define HCINT_RD (1 << 3) /* resume detect */
-#define HCINT_UE (1 << 4) /* unrecoverable error */
-#define HCINT_FNO (1 << 5) /* frame number overflow */
-#define HCINT_RHSC (1 << 6) /* root hub status change */
-#define HCINT_OC (1 << 30) /* ownership change */
-#define HCINT_MIE (1 << 31) /* master interrupt enable */
-#define HCINTENB 0x04
-#define HCINTDIS 0x05
-#define HCFMINTVL 0x0d
-#define HCFMREM 0x0e
-#define HCFMNUM 0x0f
-#define HCLSTHRESH 0x11
-#define HCRHDESCA 0x12
-#define RH_A_NDP (0x3 << 0) /* # downstream ports */
-#define RH_A_PSM (1 << 8) /* power switching mode */
-#define RH_A_NPS (1 << 9) /* no power switching */
-#define RH_A_DT (1 << 10) /* device type (mbz) */
-#define RH_A_OCPM (1 << 11) /* overcurrent protection
- mode */
-#define RH_A_NOCP (1 << 12) /* no overcurrent protection */
-#define RH_A_POTPGT (0xff << 24) /* power on -> power good
- time */
-#define HCRHDESCB 0x13
-#define RH_B_DR (0xffff << 0) /* device removable flags */
-#define RH_B_PPCM (0xffff << 16) /* port power control mask */
-#define HCRHSTATUS 0x14
-#define RH_HS_LPS (1 << 0) /* local power status */
-#define RH_HS_OCI (1 << 1) /* over current indicator */
-#define RH_HS_DRWE (1 << 15) /* device remote wakeup
- enable */
-#define RH_HS_LPSC (1 << 16) /* local power status change */
-#define RH_HS_OCIC (1 << 17) /* over current indicator
- change */
-#define RH_HS_CRWE (1 << 31) /* clear remote wakeup
- enable */
-#define HCRHPORT1 0x15
-#define RH_PS_CCS (1 << 0) /* current connect status */
-#define RH_PS_PES (1 << 1) /* port enable status */
-#define RH_PS_PSS (1 << 2) /* port suspend status */
-#define RH_PS_POCI (1 << 3) /* port over current
- indicator */
-#define RH_PS_PRS (1 << 4) /* port reset status */
-#define RH_PS_PPS (1 << 8) /* port power status */
-#define RH_PS_LSDA (1 << 9) /* low speed device attached */
-#define RH_PS_CSC (1 << 16) /* connect status change */
-#define RH_PS_PESC (1 << 17) /* port enable status change */
-#define RH_PS_PSSC (1 << 18) /* port suspend status
- change */
-#define RH_PS_OCIC (1 << 19) /* over current indicator
- change */
-#define RH_PS_PRSC (1 << 20) /* port reset status change */
-#define HCRHPORT_CLRMASK (0x1f << 16)
-#define HCRHPORT2 0x16
-#define HCHWCFG 0x20
-#define HCHWCFG_15KRSEL (1 << 12)
-#define HCHWCFG_CLKNOTSTOP (1 << 11)
-#define HCHWCFG_ANALOG_OC (1 << 10)
-#define HCHWCFG_DACK_MODE (1 << 8)
-#define HCHWCFG_EOT_POL (1 << 7)
-#define HCHWCFG_DACK_POL (1 << 6)
-#define HCHWCFG_DREQ_POL (1 << 5)
-#define HCHWCFG_DBWIDTH_MASK (0x03 << 3)
-#define HCHWCFG_DBWIDTH(n) (((n) << 3) & HCHWCFG_DBWIDTH_MASK)
-#define HCHWCFG_INT_POL (1 << 2)
-#define HCHWCFG_INT_TRIGGER (1 << 1)
-#define HCHWCFG_INT_ENABLE (1 << 0)
-#define HCDMACFG 0x21
-#define HCDMACFG_BURST_LEN_MASK (0x03 << 5)
-#define HCDMACFG_BURST_LEN(n) (((n) << 5) & HCDMACFG_BURST_LEN_MASK)
-#define HCDMACFG_BURST_LEN_1 HCDMACFG_BURST_LEN(0)
-#define HCDMACFG_BURST_LEN_4 HCDMACFG_BURST_LEN(1)
-#define HCDMACFG_BURST_LEN_8 HCDMACFG_BURST_LEN(2)
-#define HCDMACFG_DMA_ENABLE (1 << 4)
-#define HCDMACFG_BUF_TYPE_MASK (0x07 << 1)
-#define HCDMACFG_CTR_SEL (1 << 2)
-#define HCDMACFG_ITLATL_SEL (1 << 1)
-#define HCDMACFG_DMA_RW_SELECT (1 << 0)
-#define HCXFERCTR 0x22
-#define HCuPINT 0x24
-#define HCuPINT_SOF (1 << 0)
-#define HCuPINT_ATL (1 << 1)
-#define HCuPINT_AIIEOT (1 << 2)
-#define HCuPINT_OPR (1 << 4)
-#define HCuPINT_SUSP (1 << 5)
-#define HCuPINT_CLKRDY (1 << 6)
-#define HCuPINTENB 0x25
-#define HCCHIPID 0x27
-#define HCCHIPID_MASK 0xff00
-#define HCCHIPID_MAGIC 0x6100
-#define HCSCRATCH 0x28
-#define HCSWRES 0x29
-#define HCSWRES_MAGIC 0x00f6
-#define HCITLBUFLEN 0x2a
-#define HCATLBUFLEN 0x2b
-#define HCBUFSTAT 0x2c
-#define HCBUFSTAT_ITL0_FULL (1 << 0)
-#define HCBUFSTAT_ITL1_FULL (1 << 1)
-#define HCBUFSTAT_ATL_FULL (1 << 2)
-#define HCBUFSTAT_ITL0_DONE (1 << 3)
-#define HCBUFSTAT_ITL1_DONE (1 << 4)
-#define HCBUFSTAT_ATL_DONE (1 << 5)
-#define HCRDITL0LEN 0x2d
-#define HCRDITL1LEN 0x2e
-#define HCITLPORT 0x40
-#define HCATLPORT 0x41
-
-/* PTD accessor macros. */
-#define PTD_GET_COUNT(p) (((p)->count & PTD_COUNT_MSK) >> 0)
-#define PTD_COUNT(v) (((v) << 0) & PTD_COUNT_MSK)
-#define PTD_GET_TOGGLE(p) (((p)->count & PTD_TOGGLE_MSK) >> 10)
-#define PTD_TOGGLE(v) (((v) << 10) & PTD_TOGGLE_MSK)
-#define PTD_GET_ACTIVE(p) (((p)->count & PTD_ACTIVE_MSK) >> 11)
-#define PTD_ACTIVE(v) (((v) << 11) & PTD_ACTIVE_MSK)
-#define PTD_GET_CC(p) (((p)->count & PTD_CC_MSK) >> 12)
-#define PTD_CC(v) (((v) << 12) & PTD_CC_MSK)
-#define PTD_GET_MPS(p) (((p)->mps & PTD_MPS_MSK) >> 0)
-#define PTD_MPS(v) (((v) << 0) & PTD_MPS_MSK)
-#define PTD_GET_SPD(p) (((p)->mps & PTD_SPD_MSK) >> 10)
-#define PTD_SPD(v) (((v) << 10) & PTD_SPD_MSK)
-#define PTD_GET_LAST(p) (((p)->mps & PTD_LAST_MSK) >> 11)
-#define PTD_LAST(v) (((v) << 11) & PTD_LAST_MSK)
-#define PTD_GET_EP(p) (((p)->mps & PTD_EP_MSK) >> 12)
-#define PTD_EP(v) (((v) << 12) & PTD_EP_MSK)
-#define PTD_GET_LEN(p) (((p)->len & PTD_LEN_MSK) >> 0)
-#define PTD_LEN(v) (((v) << 0) & PTD_LEN_MSK)
-#define PTD_GET_DIR(p) (((p)->len & PTD_DIR_MSK) >> 10)
-#define PTD_DIR(v) (((v) << 10) & PTD_DIR_MSK)
-#define PTD_GET_B5_5(p) (((p)->len & PTD_B5_5_MSK) >> 13)
-#define PTD_B5_5(v) (((v) << 13) & PTD_B5_5_MSK)
-#define PTD_GET_FA(p) (((p)->faddr & PTD_FA_MSK) >> 0)
-#define PTD_FA(v) (((v) << 0) & PTD_FA_MSK)
-#define PTD_GET_FMT(p) (((p)->faddr & PTD_FMT_MSK) >> 7)
-#define PTD_FMT(v) (((v) << 7) & PTD_FMT_MSK)
-
-/* Hardware transfer status codes -- CC from ptd->count */
-#define TD_CC_NOERROR 0x00
-#define TD_CC_CRC 0x01
-#define TD_CC_BITSTUFFING 0x02
-#define TD_CC_DATATOGGLEM 0x03
-#define TD_CC_STALL 0x04
-#define TD_DEVNOTRESP 0x05
-#define TD_PIDCHECKFAIL 0x06
-#define TD_UNEXPECTEDPID 0x07
-#define TD_DATAOVERRUN 0x08
-#define TD_DATAUNDERRUN 0x09
- /* 0x0A, 0x0B reserved for hardware */
-#define TD_BUFFEROVERRUN 0x0C
-#define TD_BUFFERUNDERRUN 0x0D
- /* 0x0E, 0x0F reserved for HCD */
-#define TD_NOTACCESSED 0x0F
-
-/* ------------------------------------------------------------------------- */
-
-#define LOG2_PERIODIC_SIZE 5 /* arbitrary; this matches OHCI */
-#define PERIODIC_SIZE (1 << LOG2_PERIODIC_SIZE)
-
-/* Philips transfer descriptor */
-struct ptd {
- u16 count;
-#define PTD_COUNT_MSK (0x3ff << 0)
-#define PTD_TOGGLE_MSK (1 << 10)
-#define PTD_ACTIVE_MSK (1 << 11)
-#define PTD_CC_MSK (0xf << 12)
- u16 mps;
-#define PTD_MPS_MSK (0x3ff << 0)
-#define PTD_SPD_MSK (1 << 10)
-#define PTD_LAST_MSK (1 << 11)
-#define PTD_EP_MSK (0xf << 12)
- u16 len;
-#define PTD_LEN_MSK (0x3ff << 0)
-#define PTD_DIR_MSK (3 << 10)
-#define PTD_DIR_SETUP (0)
-#define PTD_DIR_OUT (1)
-#define PTD_DIR_IN (2)
-#define PTD_B5_5_MSK (1 << 13)
- u16 faddr;
-#define PTD_FA_MSK (0x7f << 0)
-#define PTD_FMT_MSK (1 << 7)
-} __attribute__ ((packed, aligned(2)));
-
-struct isp116x_ep {
- struct usb_device *udev;
- struct ptd ptd;
-
- u8 maxpacket;
- u8 epnum;
- u8 nextpid;
-
- u16 length; /* of current packet */
- unsigned char *data; /* to databuf */
-
- u16 error_count;
-};
-
-/* URB struct */
-#define N_URB_TD 48
-#define URB_DEL 1
-typedef struct {
- struct isp116x_ep *ed;
- void *transfer_buffer; /* (in) associated data buffer */
- int actual_length; /* (return) actual transfer length */
- unsigned long pipe; /* (in) pipe information */
-#if 0
- int state;
-#endif
-} urb_priv_t;
-
-struct isp116x_platform_data {
- /* Enable internal resistors on downstream ports */
- unsigned sel15Kres:1;
- /* On-chip overcurrent detection */
- unsigned oc_enable:1;
- /* Enable wakeup by devices on usb bus (e.g. wakeup
- by attachment/detachment or by device activity
- such as moving a mouse). When chosen, this option
- prevents stopping internal clock, increasing
- thereby power consumption in suspended state. */
- unsigned remote_wakeup_enable:1;
-};
-
-struct isp116x {
- u16 *addr_reg;
- u16 *data_reg;
-
- struct isp116x_platform_data *board;
-
- struct dentry *dentry;
- unsigned long stat1, stat2, stat4, stat8, stat16;
-
- /* Status flags */
- unsigned disabled:1;
- unsigned sleeping:1;
-
- /* Root hub registers */
- u32 rhdesca;
- u32 rhdescb;
- u32 rhstatus;
- u32 rhport[2];
-
- /* Schedule for the current frame */
- struct isp116x_ep *atl_active;
- int atl_buflen;
- int atl_bufshrt;
- int atl_last_dir;
- int atl_finishing;
-};
-
-/* ------------------------------------------------- */
-
-/* Inter-io delay (ns). The chip is picky about access timings; it
- * expects at least:
- * 150ns delay between consecutive accesses to DATA_REG,
- * 300ns delay between access to ADDR_REG and DATA_REG
- * OE, WE MUST NOT be changed during these intervals
- */
-#if defined(UDELAY)
-#define isp116x_delay(h,d) udelay(d)
-#else
-#define isp116x_delay(h,d) do {} while (0)
-#endif
-
-static inline void isp116x_write_addr(struct isp116x *isp116x, unsigned reg)
-{
- writew(reg & 0xff, isp116x->addr_reg);
- isp116x_delay(isp116x, UDELAY);
-}
-
-static inline void isp116x_write_data16(struct isp116x *isp116x, u16 val)
-{
- writew(val, isp116x->data_reg);
- isp116x_delay(isp116x, UDELAY);
-}
-
-static inline void isp116x_raw_write_data16(struct isp116x *isp116x, u16 val)
-{
- __raw_writew(val, isp116x->data_reg);
- isp116x_delay(isp116x, UDELAY);
-}
-
-static inline u16 isp116x_read_data16(struct isp116x *isp116x)
-{
- u16 val;
-
- val = readw(isp116x->data_reg);
- isp116x_delay(isp116x, UDELAY);
- return val;
-}
-
-static inline u16 isp116x_raw_read_data16(struct isp116x *isp116x)
-{
- u16 val;
-
- val = __raw_readw(isp116x->data_reg);
- isp116x_delay(isp116x, UDELAY);
- return val;
-}
-
-static inline void isp116x_write_data32(struct isp116x *isp116x, u32 val)
-{
- writew(val & 0xffff, isp116x->data_reg);
- isp116x_delay(isp116x, UDELAY);
- writew(val >> 16, isp116x->data_reg);
- isp116x_delay(isp116x, UDELAY);
-}
-
-static inline u32 isp116x_read_data32(struct isp116x *isp116x)
-{
- u32 val;
-
- val = (u32) readw(isp116x->data_reg);
- isp116x_delay(isp116x, UDELAY);
- val |= ((u32) readw(isp116x->data_reg)) << 16;
- isp116x_delay(isp116x, UDELAY);
- return val;
-}
-
-/* Let's keep register access functions out of line. Hint:
- we wait at least 150 ns at every access.
-*/
-static u16 isp116x_read_reg16(struct isp116x *isp116x, unsigned reg)
-{
- isp116x_write_addr(isp116x, reg);
- return isp116x_read_data16(isp116x);
-}
-
-static u32 isp116x_read_reg32(struct isp116x *isp116x, unsigned reg)
-{
- isp116x_write_addr(isp116x, reg);
- return isp116x_read_data32(isp116x);
-}
-
-static void isp116x_write_reg16(struct isp116x *isp116x, unsigned reg,
- unsigned val)
-{
- isp116x_write_addr(isp116x, reg | ISP116x_WRITE_OFFSET);
- isp116x_write_data16(isp116x, (u16) (val & 0xffff));
-}
-
-static void isp116x_write_reg32(struct isp116x *isp116x, unsigned reg,
- unsigned val)
-{
- isp116x_write_addr(isp116x, reg | ISP116x_WRITE_OFFSET);
- isp116x_write_data32(isp116x, (u32) val);
-}
-
-/* --- USB HUB constants (not OHCI-specific; see hub.h) -------------------- */
-
-/* destination of request */
-#define RH_INTERFACE 0x01
-#define RH_ENDPOINT 0x02
-#define RH_OTHER 0x03
-
-#define RH_CLASS 0x20
-#define RH_VENDOR 0x40
-
-/* Requests: bRequest << 8 | bmRequestType */
-#define RH_GET_STATUS 0x0080
-#define RH_CLEAR_FEATURE 0x0100
-#define RH_SET_FEATURE 0x0300
-#define RH_SET_ADDRESS 0x0500
-#define RH_GET_DESCRIPTOR 0x0680
-#define RH_SET_DESCRIPTOR 0x0700
-#define RH_GET_CONFIGURATION 0x0880
-#define RH_SET_CONFIGURATION 0x0900
-#define RH_GET_STATE 0x0280
-#define RH_GET_INTERFACE 0x0A80
-#define RH_SET_INTERFACE 0x0B00
-#define RH_SYNC_FRAME 0x0C80
-/* Our Vendor Specific Request */
-#define RH_SET_EP 0x2000
-
-/* Hub port features */
-#define RH_PORT_CONNECTION 0x00
-#define RH_PORT_ENABLE 0x01
-#define RH_PORT_SUSPEND 0x02
-#define RH_PORT_OVER_CURRENT 0x03
-#define RH_PORT_RESET 0x04
-#define RH_PORT_POWER 0x08
-#define RH_PORT_LOW_SPEED 0x09
-
-#define RH_C_PORT_CONNECTION 0x10
-#define RH_C_PORT_ENABLE 0x11
-#define RH_C_PORT_SUSPEND 0x12
-#define RH_C_PORT_OVER_CURRENT 0x13
-#define RH_C_PORT_RESET 0x14
-
-/* Hub features */
-#define RH_C_HUB_LOCAL_POWER 0x00
-#define RH_C_HUB_OVER_CURRENT 0x01
-
-#define RH_DEVICE_REMOTE_WAKEUP 0x00
-#define RH_ENDPOINT_STALL 0x01
-
-#define RH_ACK 0x01
-#define RH_REQ_ERR -1
-#define RH_NACK 0x00
projects / u-boot / commitdiff