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u-boot/drivers/usb/host/r8a66597-hcd.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style 
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

860 lines
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// SPDX-License-Identifier: GPL-2.0
/*
* R8A66597 HCD (Host Controller Driver) for u-boot
*
* Copyright (C) 2008 Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
*/
#include <common.h>
#include <console.h>
#include <usb.h>
#include <asm/io.h>
#include <linux/iopoll.h>
#include "r8a66597.h"
#ifdef R8A66597_DEBUG
#define R8A66597_DPRINT printf
#else
#define R8A66597_DPRINT(...)
#endif
static struct r8a66597 gr8a66597;
static void get_hub_data(struct usb_device *dev, u16 *hub_devnum, u16 *hubport)
{
int i;
*hub_devnum = 0;
*hubport = 0;
/* check a device connected to root_hub */
if ((dev->parent && dev->parent->devnum == 1) ||
(dev->devnum == 1))
return;
for (i = 0; i < USB_MAXCHILDREN; i++) {
if (dev->parent->children[i] == dev) {
*hub_devnum = (u8)dev->parent->devnum;
*hubport = i;
return;
}
}
printf("get_hub_data error.\n");
}
static void set_devadd(struct r8a66597 *r8a66597, u8 r8a66597_address,
struct usb_device *dev, int port)
{
u16 val, usbspd, upphub, hubport;
unsigned long devadd_reg = get_devadd_addr(r8a66597_address);
get_hub_data(dev, &upphub, &hubport);
usbspd = r8a66597->speed;
val = (upphub << 11) | (hubport << 8) | (usbspd << 6) | (port & 0x0001);
r8a66597_write(r8a66597, val, devadd_reg);
}
static int r8a66597_clock_enable(struct r8a66597 *r8a66597)
{
u16 tmp;
int i = 0;
#if defined(CONFIG_SUPERH_ON_CHIP_R8A66597)
do {
r8a66597_write(r8a66597, SCKE, SYSCFG0);
tmp = r8a66597_read(r8a66597, SYSCFG0);
if (i++ > 1000) {
printf("register access fail.\n");
return -1;
}
} while ((tmp & SCKE) != SCKE);
r8a66597_write(r8a66597, 0x04, 0x02);
#else
do {
r8a66597_write(r8a66597, USBE, SYSCFG0);
tmp = r8a66597_read(r8a66597, SYSCFG0);
if (i++ > 1000) {
printf("register access fail.\n");
return -1;
}
} while ((tmp & USBE) != USBE);
r8a66597_bclr(r8a66597, USBE, SYSCFG0);
#if !defined(CONFIG_RZA_USB)
r8a66597_mdfy(r8a66597, CONFIG_R8A66597_XTAL, XTAL, SYSCFG0);
i = 0;
r8a66597_bset(r8a66597, XCKE, SYSCFG0);
do {
udelay(1000);
tmp = r8a66597_read(r8a66597, SYSCFG0);
if (i++ > 500) {
printf("register access fail.\n");
return -1;
}
} while ((tmp & SCKE) != SCKE);
#else
/*
* RZ/A Only:
* Bits XTAL(UCKSEL) and UPLLE in SYSCFG0 for USB0 controls both USB0
* and USB1, so we must always set the USB0 register
*/
#if (CONFIG_R8A66597_XTAL == 1)
setbits(le16, R8A66597_BASE0, XTAL);
#endif
mdelay(1);
setbits(le16, R8A66597_BASE0, UPLLE);
mdelay(1);
r8a66597_bset(r8a66597, SUSPM, SUSPMODE0);
#endif /* CONFIG_RZA_USB */
#endif /* #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) */
return 0;
}
static void r8a66597_clock_disable(struct r8a66597 *r8a66597)
{
#if !defined(CONFIG_RZA_USB)
r8a66597_bclr(r8a66597, SCKE, SYSCFG0);
udelay(1);
#if !defined(CONFIG_SUPERH_ON_CHIP_R8A66597)
r8a66597_bclr(r8a66597, PLLC, SYSCFG0);
r8a66597_bclr(r8a66597, XCKE, SYSCFG0);
r8a66597_bclr(r8a66597, USBE, SYSCFG0);
#endif
#else
r8a66597_bclr(r8a66597, SUSPM, SUSPMODE0);
clrbits(le16, R8A66597_BASE0, UPLLE);
mdelay(1);
r8a66597_bclr(r8a66597, USBE, SYSCFG0);
mdelay(1);
#endif
}
static void r8a66597_enable_port(struct r8a66597 *r8a66597, int port)
{
u16 val;
val = port ? DRPD : DCFM | DRPD;
r8a66597_bset(r8a66597, val, get_syscfg_reg(port));
r8a66597_bset(r8a66597, HSE, get_syscfg_reg(port));
#if !defined(CONFIG_RZA_USB)
r8a66597_write(r8a66597, BURST | CPU_ADR_RD_WR, get_dmacfg_reg(port));
#endif
}
static void r8a66597_disable_port(struct r8a66597 *r8a66597, int port)
{
u16 val, tmp;
r8a66597_write(r8a66597, 0, get_intenb_reg(port));
r8a66597_write(r8a66597, 0, get_intsts_reg(port));
r8a66597_port_power(r8a66597, port, 0);
do {
tmp = r8a66597_read(r8a66597, SOFCFG) & EDGESTS;
udelay(640);
} while (tmp == EDGESTS);
val = port ? DRPD : DCFM | DRPD;
r8a66597_bclr(r8a66597, val, get_syscfg_reg(port));
r8a66597_bclr(r8a66597, HSE, get_syscfg_reg(port));
}
static int enable_controller(struct r8a66597 *r8a66597)
{
int ret, port;
ret = r8a66597_clock_enable(r8a66597);
if (ret < 0)
return ret;
#if !defined(CONFIG_RZA_USB)
r8a66597_bset(r8a66597, CONFIG_R8A66597_LDRV & LDRV, PINCFG);
#endif
r8a66597_bset(r8a66597, USBE, SYSCFG0);
r8a66597_bset(r8a66597, INTL, SOFCFG);
r8a66597_write(r8a66597, 0, INTENB0);
for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++)
r8a66597_write(r8a66597, 0, get_intenb_reg(port));
r8a66597_bset(r8a66597, CONFIG_R8A66597_ENDIAN & BIGEND, CFIFOSEL);
r8a66597_bset(r8a66597, CONFIG_R8A66597_ENDIAN & BIGEND, D0FIFOSEL);
r8a66597_bset(r8a66597, CONFIG_R8A66597_ENDIAN & BIGEND, D1FIFOSEL);
r8a66597_bset(r8a66597, TRNENSEL, SOFCFG);
for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++)
r8a66597_enable_port(r8a66597, port);
return 0;
}
static void disable_controller(struct r8a66597 *r8a66597)
{
int i;
if (!(r8a66597_read(r8a66597, SYSCFG0) & USBE))
return;
r8a66597_write(r8a66597, 0, INTENB0);
r8a66597_write(r8a66597, 0, INTSTS0);
r8a66597_write(r8a66597, 0, D0FIFOSEL);
r8a66597_write(r8a66597, 0, D1FIFOSEL);
r8a66597_write(r8a66597, 0, DCPCFG);
r8a66597_write(r8a66597, 0x40, DCPMAXP);
r8a66597_write(r8a66597, 0, DCPCTR);
for (i = 0; i <= 10; i++)
r8a66597_write(r8a66597, 0, get_devadd_addr(i));
for (i = 1; i <= 5; i++) {
r8a66597_write(r8a66597, 0, get_pipetre_addr(i));
r8a66597_write(r8a66597, 0, get_pipetrn_addr(i));
}
for (i = 1; i < R8A66597_MAX_NUM_PIPE; i++) {
r8a66597_write(r8a66597, 0, get_pipectr_addr(i));
r8a66597_write(r8a66597, i, PIPESEL);
r8a66597_write(r8a66597, 0, PIPECFG);
r8a66597_write(r8a66597, 0, PIPEBUF);
r8a66597_write(r8a66597, 0, PIPEMAXP);
r8a66597_write(r8a66597, 0, PIPEPERI);
}
for (i = 0; i < R8A66597_MAX_ROOT_HUB; i++)
r8a66597_disable_port(r8a66597, i);
r8a66597_clock_disable(r8a66597);
}
static void r8a66597_reg_wait(struct r8a66597 *r8a66597, unsigned long reg,
u16 mask, u16 loop)
{
u16 tmp;
int i = 0;
do {
tmp = r8a66597_read(r8a66597, reg);
if (i++ > 1000000) {
printf("register%lx, loop %x is timeout\n", reg, loop);
break;
}
} while ((tmp & mask) != loop);
}
static void pipe_buffer_setting(struct r8a66597 *r8a66597,
struct usb_device *dev, unsigned long pipe)
{
u16 val = 0;
u16 pipenum, bufnum, maxpacket;
if (usb_pipein(pipe)) {
pipenum = BULK_IN_PIPENUM;
bufnum = BULK_IN_BUFNUM;
maxpacket = dev->epmaxpacketin[usb_pipeendpoint(pipe)];
} else {
pipenum = BULK_OUT_PIPENUM;
bufnum = BULK_OUT_BUFNUM;
maxpacket = dev->epmaxpacketout[usb_pipeendpoint(pipe)];
}
if (r8a66597->pipe_config & (1 << pipenum))
return;
r8a66597->pipe_config |= (1 << pipenum);
r8a66597_bset(r8a66597, ACLRM, get_pipectr_addr(pipenum));
r8a66597_bclr(r8a66597, ACLRM, get_pipectr_addr(pipenum));
r8a66597_write(r8a66597, pipenum, PIPESEL);
/* FIXME: This driver support bulk transfer only. */
if (!usb_pipein(pipe))
val |= R8A66597_DIR;
else
val |= R8A66597_SHTNAK;
val |= R8A66597_BULK | R8A66597_DBLB | usb_pipeendpoint(pipe);
r8a66597_write(r8a66597, val, PIPECFG);
r8a66597_write(r8a66597, (8 << 10) | bufnum, PIPEBUF);
r8a66597_write(r8a66597, make_devsel(usb_pipedevice(pipe)) |
maxpacket, PIPEMAXP);
r8a66597_write(r8a66597, 0, PIPEPERI);
r8a66597_write(r8a66597, SQCLR, get_pipectr_addr(pipenum));
}
static int send_setup_packet(struct r8a66597 *r8a66597, struct usb_device *dev,
struct devrequest *setup)
{
int i;
unsigned short *p = (unsigned short *)setup;
unsigned long setup_addr = USBREQ;
u16 intsts1;
int timeout = 3000;
#if defined(CONFIG_RZA_USB)
u16 dcpctr;
#endif
u16 devsel = setup->request == USB_REQ_SET_ADDRESS ? 0 : dev->devnum;
r8a66597_write(r8a66597, make_devsel(devsel) |
(8 << dev->maxpacketsize), DCPMAXP);
r8a66597_write(r8a66597, ~(SIGN | SACK), INTSTS1);
#if defined(CONFIG_RZA_USB)
dcpctr = r8a66597_read(r8a66597, DCPCTR);
if ((dcpctr & PID) == PID_BUF) {
if (readw_poll_timeout(r8a66597->reg + DCPCTR, dcpctr,
dcpctr & BSTS, 1000) < 0) {
printf("DCPCTR BSTS timeout!\n");
return -ETIMEDOUT;
}
}
#endif
for (i = 0; i < 4; i++) {
r8a66597_write(r8a66597, le16_to_cpu(p[i]), setup_addr);
setup_addr += 2;
}
r8a66597_write(r8a66597, ~0x0001, BRDYSTS);
r8a66597_write(r8a66597, SUREQ, DCPCTR);
while (1) {
intsts1 = r8a66597_read(r8a66597, INTSTS1);
if (intsts1 & SACK)
break;
if (intsts1 & SIGN) {
printf("setup packet send error\n");
return -1;
}
if (timeout-- < 0) {
printf("setup packet timeout\n");
return -1;
}
udelay(500);
}
return 0;
}
static int send_bulk_packet(struct r8a66597 *r8a66597, struct usb_device *dev,
unsigned long pipe, void *buffer, int transfer_len)
{
u16 tmp, bufsize;
u16 *buf;
size_t size;
R8A66597_DPRINT("%s\n", __func__);
r8a66597_mdfy(r8a66597, MBW | BULK_OUT_PIPENUM,
MBW | CURPIPE, CFIFOSEL);
r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, BULK_OUT_PIPENUM);
tmp = r8a66597_read(r8a66597, CFIFOCTR);
if ((tmp & FRDY) == 0) {
printf("%s FRDY is not set (%x)\n", __func__, tmp);
return -1;
}
/* prepare parameters */
bufsize = dev->epmaxpacketout[usb_pipeendpoint(pipe)];
buf = (u16 *)(buffer + dev->act_len);
size = min((int)bufsize, transfer_len - dev->act_len);
/* write fifo */
r8a66597_write(r8a66597, ~(1 << BULK_OUT_PIPENUM), BEMPSTS);
if (buffer) {
r8a66597_write_fifo(r8a66597, CFIFO, buf, size);
r8a66597_write(r8a66597, BVAL, CFIFOCTR);
}
/* update parameters */
dev->act_len += size;
r8a66597_mdfy(r8a66597, PID_BUF, PID,
get_pipectr_addr(BULK_OUT_PIPENUM));
while (!(r8a66597_read(r8a66597, BEMPSTS) & (1 << BULK_OUT_PIPENUM)))
if (ctrlc())
return -1;
r8a66597_write(r8a66597, ~(1 << BULK_OUT_PIPENUM), BEMPSTS);
if (dev->act_len >= transfer_len)
r8a66597_mdfy(r8a66597, PID_NAK, PID,
get_pipectr_addr(BULK_OUT_PIPENUM));
return 0;
}
static int receive_bulk_packet(struct r8a66597 *r8a66597,
struct usb_device *dev,
unsigned long pipe,
void *buffer, int transfer_len)
{
u16 tmp;
u16 *buf;
const u16 pipenum = BULK_IN_PIPENUM;
int rcv_len;
int maxpacket = dev->epmaxpacketin[usb_pipeendpoint(pipe)];
R8A66597_DPRINT("%s\n", __func__);
/* prepare */
if (dev->act_len == 0) {
r8a66597_mdfy(r8a66597, PID_NAK, PID,
get_pipectr_addr(pipenum));
r8a66597_write(r8a66597, ~(1 << pipenum), BRDYSTS);
r8a66597_write(r8a66597, TRCLR, get_pipetre_addr(pipenum));
r8a66597_write(r8a66597,
(transfer_len + maxpacket - 1) / maxpacket,
get_pipetrn_addr(pipenum));
r8a66597_bset(r8a66597, TRENB, get_pipetre_addr(pipenum));
r8a66597_mdfy(r8a66597, PID_BUF, PID,
get_pipectr_addr(pipenum));
}
r8a66597_mdfy(r8a66597, MBW | pipenum, MBW | CURPIPE, CFIFOSEL);
r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, pipenum);
while (!(r8a66597_read(r8a66597, BRDYSTS) & (1 << pipenum)))
if (ctrlc())
return -1;
r8a66597_write(r8a66597, ~(1 << pipenum), BRDYSTS);
tmp = r8a66597_read(r8a66597, CFIFOCTR);
if ((tmp & FRDY) == 0) {
printf("%s FRDY is not set. (%x)\n", __func__, tmp);
return -1;
}
buf = (u16 *)(buffer + dev->act_len);
rcv_len = tmp & DTLN;
dev->act_len += rcv_len;
if (buffer) {
if (rcv_len == 0)
r8a66597_write(r8a66597, BCLR, CFIFOCTR);
else
r8a66597_read_fifo(r8a66597, CFIFO, buf, rcv_len);
}
return 0;
}
static int receive_control_packet(struct r8a66597 *r8a66597,
struct usb_device *dev,
void *buffer, int transfer_len)
{
u16 tmp;
int rcv_len;
/* FIXME: limit transfer size : 64byte or less */
r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG);
r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL);
r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0);
r8a66597_bset(r8a66597, SQSET, DCPCTR);
r8a66597_write(r8a66597, BCLR, CFIFOCTR);
r8a66597_mdfy(r8a66597, PID_BUF, PID, DCPCTR);
while (!(r8a66597_read(r8a66597, BRDYSTS) & 0x0001))
if (ctrlc())
return -1;
r8a66597_write(r8a66597, ~0x0001, BRDYSTS);
r8a66597_mdfy(r8a66597, MBW, MBW | CURPIPE, CFIFOSEL);
r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0);
tmp = r8a66597_read(r8a66597, CFIFOCTR);
if ((tmp & FRDY) == 0) {
printf("%s FRDY is not set. (%x)\n", __func__, tmp);
return -1;
}
rcv_len = tmp & DTLN;
dev->act_len += rcv_len;
r8a66597_mdfy(r8a66597, PID_NAK, PID, DCPCTR);
if (buffer) {
if (rcv_len == 0)
r8a66597_write(r8a66597, BCLR, DCPCTR);
else
r8a66597_read_fifo(r8a66597, CFIFO, buffer, rcv_len);
}
return 0;
}
static int send_status_packet(struct r8a66597 *r8a66597,
unsigned long pipe)
{
r8a66597_bset(r8a66597, SQSET, DCPCTR);
r8a66597_mdfy(r8a66597, PID_NAK, PID, DCPCTR);
if (usb_pipein(pipe)) {
r8a66597_bset(r8a66597, R8A66597_DIR, DCPCFG);
r8a66597_mdfy(r8a66597, ISEL, ISEL | CURPIPE, CFIFOSEL);
r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0);
r8a66597_write(r8a66597, ~BEMP0, BEMPSTS);
r8a66597_write(r8a66597, BCLR | BVAL, CFIFOCTR);
} else {
r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG);
r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL);
r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0);
r8a66597_write(r8a66597, BCLR, CFIFOCTR);
}
r8a66597_mdfy(r8a66597, PID_BUF, PID, DCPCTR);
while (!(r8a66597_read(r8a66597, BEMPSTS) & 0x0001))
if (ctrlc())
return -1;
return 0;
}
static void r8a66597_check_syssts(struct r8a66597 *r8a66597, int port)
{
int count = R8A66597_MAX_SAMPLING;
unsigned short syssts, old_syssts;
R8A66597_DPRINT("%s\n", __func__);
old_syssts = r8a66597_read(r8a66597, get_syssts_reg(port) & LNST);
while (count > 0) {
mdelay(R8A66597_RH_POLL_TIME);
syssts = r8a66597_read(r8a66597, get_syssts_reg(port) & LNST);
if (syssts == old_syssts) {
count--;
} else {
count = R8A66597_MAX_SAMPLING;
old_syssts = syssts;
}
}
}
static void r8a66597_bus_reset(struct r8a66597 *r8a66597, int port)
{
mdelay(10);
r8a66597_mdfy(r8a66597, USBRST, USBRST | UACT, get_dvstctr_reg(port));
mdelay(50);
r8a66597_mdfy(r8a66597, UACT, USBRST | UACT, get_dvstctr_reg(port));
mdelay(50);
}
static int check_usb_device_connecting(struct r8a66597 *r8a66597)
{
int timeout = 10000; /* 100usec * 10000 = 1sec */
int i;
for (i = 0; i < 5; i++) {
/* check a usb cable connect */
while (!(r8a66597_read(r8a66597, INTSTS1) & ATTCH)) {
if (timeout-- < 0) {
printf("%s timeout.\n", __func__);
return -1;
}
udelay(100);
}
/* check a data line */
r8a66597_check_syssts(r8a66597, 0);
r8a66597_bus_reset(r8a66597, 0);
r8a66597->speed = get_rh_usb_speed(r8a66597, 0);
if (!(r8a66597_read(r8a66597, INTSTS1) & DTCH)) {
r8a66597->port_change = USB_PORT_STAT_C_CONNECTION;
r8a66597->port_status = USB_PORT_STAT_CONNECTION |
USB_PORT_STAT_ENABLE;
return 0; /* success */
}
R8A66597_DPRINT("USB device has detached. retry = %d\n", i);
r8a66597_write(r8a66597, ~DTCH, INTSTS1);
}
return -1; /* fail */
}
/*-------------------------------------------------------------------------*
* Virtual Root Hub
*-------------------------------------------------------------------------*/
#include <usbroothubdes.h>
static int r8a66597_submit_rh_msg(struct usb_device *dev, unsigned long pipe,
void *buffer, int transfer_len, struct devrequest *cmd)
{
struct r8a66597 *r8a66597 = &gr8a66597;
int leni = transfer_len;
int len = 0;
int stat = 0;
__u16 bmRType_bReq;
__u16 wValue;
__u16 wLength;
unsigned char data[32];
R8A66597_DPRINT("%s\n", __func__);
if (usb_pipeint(pipe)) {
printf("Root-Hub submit IRQ: NOT implemented");
return 0;
}
bmRType_bReq = cmd->requesttype | (cmd->request << 8);
wValue = cpu_to_le16 (cmd->value);
wLength = cpu_to_le16 (cmd->length);
switch (bmRType_bReq) {
case RH_GET_STATUS:
*(__u16 *)buffer = cpu_to_le16(1);
len = 2;
break;
case RH_GET_STATUS | RH_INTERFACE:
*(__u16 *)buffer = cpu_to_le16(0);
len = 2;
break;
case RH_GET_STATUS | RH_ENDPOINT:
*(__u16 *)buffer = cpu_to_le16(0);
len = 2;
break;
case RH_GET_STATUS | RH_CLASS:
*(__u32 *)buffer = cpu_to_le32(0);
len = 4;
break;
case RH_GET_STATUS | RH_OTHER | RH_CLASS:
*(__u32 *)buffer = cpu_to_le32(r8a66597->port_status |
(r8a66597->port_change << 16));
len = 4;
break;
case RH_CLEAR_FEATURE | RH_ENDPOINT:
case RH_CLEAR_FEATURE | RH_CLASS:
break;
case RH_CLEAR_FEATURE | RH_OTHER | RH_CLASS:
switch (wValue) {
case RH_C_PORT_CONNECTION:
r8a66597->port_change &= ~USB_PORT_STAT_C_CONNECTION;
break;
}
break;
case RH_SET_FEATURE | RH_OTHER | RH_CLASS:
switch (wValue) {
case (RH_PORT_SUSPEND):
break;
case (RH_PORT_RESET):
r8a66597_bus_reset(r8a66597, 0);
break;
case (RH_PORT_POWER):
break;
case (RH_PORT_ENABLE):
break;
}
break;
case RH_SET_ADDRESS:
gr8a66597.rh_devnum = wValue;
break;
case RH_GET_DESCRIPTOR:
switch ((wValue & 0xff00) >> 8) {
case (0x01): /* device descriptor */
len = min_t(unsigned int,
leni,
min_t(unsigned int,
sizeof(root_hub_dev_des),
wLength));
memcpy(buffer, root_hub_dev_des, len);
break;
case (0x02): /* configuration descriptor */
len = min_t(unsigned int,
leni,
min_t(unsigned int,
sizeof(root_hub_config_des),
wLength));
memcpy(buffer, root_hub_config_des, len);
break;
case (0x03): /* string descriptors */
if (wValue == 0x0300) {
len = min_t(unsigned int,
leni,
min_t(unsigned int,
sizeof(root_hub_str_index0),
wLength));
memcpy(buffer, root_hub_str_index0, len);
}
if (wValue == 0x0301) {
len = min_t(unsigned int,
leni,
min_t(unsigned int,
sizeof(root_hub_str_index1),
wLength));
memcpy(buffer, root_hub_str_index1, len);
}
break;
default:
stat = USB_ST_STALLED;
}
break;
case RH_GET_DESCRIPTOR | RH_CLASS:
{
__u32 temp = 0x00000001;
data[0] = 9; /* min length; */
data[1] = 0x29;
data[2] = temp & RH_A_NDP;
data[3] = 0;
if (temp & RH_A_PSM)
data[3] |= 0x1;
if (temp & RH_A_NOCP)
data[3] |= 0x10;
else if (temp & RH_A_OCPM)
data[3] |= 0x8;
/* corresponds to data[4-7] */
data[5] = (temp & RH_A_POTPGT) >> 24;
data[7] = temp & RH_B_DR;
if (data[2] < 7) {
data[8] = 0xff;
} else {
data[0] += 2;
data[8] = (temp & RH_B_DR) >> 8;
data[10] = data[9] = 0xff;
}
len = min_t(unsigned int, leni,
min_t(unsigned int, data[0], wLength));
memcpy(buffer, data, len);
break;
}
case RH_GET_CONFIGURATION:
*(__u8 *) buffer = 0x01;
len = 1;
break;
case RH_SET_CONFIGURATION:
break;
default:
R8A66597_DPRINT("unsupported root hub command");
stat = USB_ST_STALLED;
}
mdelay(1);
len = min_t(int, len, leni);
dev->act_len = len;
dev->status = stat;
return stat;
}
int submit_bulk_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
int transfer_len)
{
struct r8a66597 *r8a66597 = &gr8a66597;
int ret = 0;
R8A66597_DPRINT("%s\n", __func__);
R8A66597_DPRINT("pipe = %08x, buffer = %p, len = %d, devnum = %d\n",
pipe, buffer, transfer_len, dev->devnum);
set_devadd(r8a66597, dev->devnum, dev, 0);
pipe_buffer_setting(r8a66597, dev, pipe);
dev->act_len = 0;
while (dev->act_len < transfer_len && ret == 0) {
if (ctrlc())
return -1;
if (usb_pipein(pipe))
ret = receive_bulk_packet(r8a66597, dev, pipe, buffer,
transfer_len);
else
ret = send_bulk_packet(r8a66597, dev, pipe, buffer,
transfer_len);
}
if (ret == 0)
dev->status = 0;
return ret;
}
int submit_control_msg(struct usb_device *dev, unsigned long pipe,
void *buffer, int transfer_len, struct devrequest *setup)
{
struct r8a66597 *r8a66597 = &gr8a66597;
u16 r8a66597_address = setup->request == USB_REQ_SET_ADDRESS ?
0 : dev->devnum;
R8A66597_DPRINT("%s\n", __func__);
if (usb_pipedevice(pipe) == r8a66597->rh_devnum)
return r8a66597_submit_rh_msg(dev, pipe, buffer, transfer_len,
setup);
R8A66597_DPRINT("%s: setup\n", __func__);
set_devadd(r8a66597, r8a66597_address, dev, 0);
if (send_setup_packet(r8a66597, dev, setup) < 0) {
printf("setup packet send error\n");
return -1;
}
dev->act_len = 0;
if (usb_pipein(pipe))
if (receive_control_packet(r8a66597, dev, buffer,
transfer_len) < 0)
return -1;
if (send_status_packet(r8a66597, pipe) < 0)
return -1;
dev->status = 0;
return 0;
}
int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
int transfer_len, int interval)
{
/* no implement */
R8A66597_DPRINT("%s\n", __func__);
return 0;
}
int usb_lowlevel_init(int index, enum usb_init_type init, void **controller)
{
struct r8a66597 *r8a66597 = &gr8a66597;
R8A66597_DPRINT("%s\n", __func__);
memset(r8a66597, 0, sizeof(*r8a66597));
r8a66597->reg = CONFIG_R8A66597_BASE_ADDR;
disable_controller(r8a66597);
mdelay(100);
enable_controller(r8a66597);
r8a66597_port_power(r8a66597, 0 , 1);
/* check usb device */
check_usb_device_connecting(r8a66597);
mdelay(50);
return 0;
}
int usb_lowlevel_stop(int index)
{
disable_controller(&gr8a66597);
return 0;
}
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