mirror of
https://github.com/adulau/aha.git
synced 2024-12-27 19:26:25 +00:00
USB: add Cypress c67x00 OTG controller HCD driver
This patch adds HCD support for the Cypress c67x00 family of devices. Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Peter Korsgaard
Greg Kroah-Hartman
parent
b02b371e6d
commit
e9b29ffc51
9 changed files with 1836 additions and 0 deletions
|
|
@ -17,6 +17,8 @@ obj-$(CONFIG_USB_SL811_HCD) += host/
|
|||
obj-$(CONFIG_USB_U132_HCD) += host/
|
||||
obj-$(CONFIG_USB_R8A66597_HCD) += host/
|
||||
|
||||
obj-$(CONFIG_USB_C67X00_HCD) += c67x00/
|
||||
|
||||
obj-$(CONFIG_USB_ACM) += class/
|
||||
obj-$(CONFIG_USB_PRINTER) += class/
|
||||
|
||||
|
|
|
|||
9
drivers/usb/c67x00/Makefile
Normal file
9
drivers/usb/c67x00/Makefile
Normal file
|
|
@ -0,0 +1,9 @@
|
|||
#
|
||||
# Makefile for Cypress C67X00 USB Controller
|
||||
#
|
||||
|
||||
ccflags-$(CONFIG_USB_DEBUG) += -DDEBUG
|
||||
|
||||
obj-$(CONFIG_USB_C67X00_HCD) += c67x00.o
|
||||
|
||||
c67x00-objs := c67x00-drv.o c67x00-ll-hpi.o c67x00-hcd.o c67x00-sched.o
|
||||
|
|
@ -41,6 +41,7 @@
|
|||
#include <linux/usb/c67x00.h>
|
||||
|
||||
#include "c67x00.h"
|
||||
#include "c67x00-hcd.h"
|
||||
|
||||
static void c67x00_probe_sie(struct c67x00_sie *sie,
|
||||
struct c67x00_device *dev, int sie_num)
|
||||
|
|
@ -51,6 +52,10 @@ static void c67x00_probe_sie(struct c67x00_sie *sie,
|
|||
sie->mode = c67x00_sie_config(dev->pdata->sie_config, sie_num);
|
||||
|
||||
switch (sie->mode) {
|
||||
case C67X00_SIE_HOST:
|
||||
c67x00_hcd_probe(sie);
|
||||
break;
|
||||
|
||||
case C67X00_SIE_UNUSED:
|
||||
dev_info(sie_dev(sie),
|
||||
"Not using SIE %d as requested\n", sie->sie_num);
|
||||
|
|
@ -66,6 +71,14 @@ static void c67x00_probe_sie(struct c67x00_sie *sie,
|
|||
|
||||
static void c67x00_remove_sie(struct c67x00_sie *sie)
|
||||
{
|
||||
switch (sie->mode) {
|
||||
case C67X00_SIE_HOST:
|
||||
c67x00_hcd_remove(sie);
|
||||
break;
|
||||
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static irqreturn_t c67x00_irq(int irq, void *__dev)
|
||||
|
|
|
|||
412
drivers/usb/c67x00/c67x00-hcd.c
Normal file
412
drivers/usb/c67x00/c67x00-hcd.c
Normal file
|
|
@ -0,0 +1,412 @@
|
|||
/*
|
||||
* c67x00-hcd.c: Cypress C67X00 USB Host Controller Driver
|
||||
*
|
||||
* Copyright (C) 2006-2008 Barco N.V.
|
||||
* Derived from the Cypress cy7c67200/300 ezusb linux driver and
|
||||
* based on multiple host controller drivers inside the linux kernel.
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
* 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 Street, Fifth Floor, Boston,
|
||||
* MA 02110-1301 USA.
|
||||
*/
|
||||
|
||||
#include <linux/device.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/usb.h>
|
||||
|
||||
#include "c67x00.h"
|
||||
#include "c67x00-hcd.h"
|
||||
|
||||
/* --------------------------------------------------------------------------
|
||||
* Root Hub Support
|
||||
*/
|
||||
|
||||
static __u8 c67x00_hub_des[] = {
|
||||
0x09, /* __u8 bLength; */
|
||||
0x29, /* __u8 bDescriptorType; Hub-descriptor */
|
||||
0x02, /* __u8 bNbrPorts; */
|
||||
0x00, /* __u16 wHubCharacteristics; */
|
||||
0x00, /* (per-port OC, no power switching) */
|
||||
0x32, /* __u8 bPwrOn2pwrGood; 2ms */
|
||||
0x00, /* __u8 bHubContrCurrent; 0 mA */
|
||||
0x00, /* __u8 DeviceRemovable; ** 7 Ports max ** */
|
||||
0xff, /* __u8 PortPwrCtrlMask; ** 7 ports max ** */
|
||||
};
|
||||
|
||||
static void c67x00_hub_reset_host_port(struct c67x00_sie *sie, int port)
|
||||
{
|
||||
struct c67x00_hcd *c67x00 = sie->private_data;
|
||||
unsigned long flags;
|
||||
|
||||
c67x00_ll_husb_reset(sie, port);
|
||||
|
||||
spin_lock_irqsave(&c67x00->lock, flags);
|
||||
c67x00_ll_husb_reset_port(sie, port);
|
||||
spin_unlock_irqrestore(&c67x00->lock, flags);
|
||||
|
||||
c67x00_ll_set_husb_eot(sie->dev, DEFAULT_EOT);
|
||||
}
|
||||
|
||||
static int c67x00_hub_status_data(struct usb_hcd *hcd, char *buf)
|
||||
{
|
||||
struct c67x00_hcd *c67x00 = hcd_to_c67x00_hcd(hcd);
|
||||
struct c67x00_sie *sie = c67x00->sie;
|
||||
u16 status;
|
||||
int i;
|
||||
|
||||
*buf = 0;
|
||||
status = c67x00_ll_usb_get_status(sie);
|
||||
for (i = 0; i < C67X00_PORTS; i++)
|
||||
if (status & PORT_CONNECT_CHANGE(i))
|
||||
*buf |= (1 << i);
|
||||
|
||||
/* bit 0 denotes hub change, b1..n port change */
|
||||
*buf <<= 1;
|
||||
|
||||
return !!*buf;
|
||||
}
|
||||
|
||||
static int c67x00_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
|
||||
u16 wIndex, char *buf, u16 wLength)
|
||||
{
|
||||
struct c67x00_hcd *c67x00 = hcd_to_c67x00_hcd(hcd);
|
||||
struct c67x00_sie *sie = c67x00->sie;
|
||||
u16 status, usb_status;
|
||||
int len = 0;
|
||||
unsigned int port = wIndex-1;
|
||||
u16 wPortChange, wPortStatus;
|
||||
|
||||
switch (typeReq) {
|
||||
|
||||
case GetHubStatus:
|
||||
*(__le32 *) buf = cpu_to_le32(0);
|
||||
len = 4; /* hub power */
|
||||
break;
|
||||
|
||||
case GetPortStatus:
|
||||
if (wIndex > C67X00_PORTS)
|
||||
return -EPIPE;
|
||||
|
||||
status = c67x00_ll_usb_get_status(sie);
|
||||
usb_status = c67x00_ll_get_usb_ctl(sie);
|
||||
|
||||
wPortChange = 0;
|
||||
if (status & PORT_CONNECT_CHANGE(port))
|
||||
wPortChange |= USB_PORT_STAT_C_CONNECTION;
|
||||
|
||||
wPortStatus = USB_PORT_STAT_POWER;
|
||||
if (!(status & PORT_SE0_STATUS(port)))
|
||||
wPortStatus |= USB_PORT_STAT_CONNECTION;
|
||||
if (usb_status & LOW_SPEED_PORT(port)) {
|
||||
wPortStatus |= USB_PORT_STAT_LOW_SPEED;
|
||||
c67x00->low_speed_ports |= (1 << port);
|
||||
} else
|
||||
c67x00->low_speed_ports &= ~(1 << port);
|
||||
|
||||
if (usb_status & SOF_EOP_EN(port))
|
||||
wPortStatus |= USB_PORT_STAT_ENABLE;
|
||||
|
||||
*(__le16 *) buf = cpu_to_le16(wPortStatus);
|
||||
*(__le16 *) (buf + 2) = cpu_to_le16(wPortChange);
|
||||
len = 4;
|
||||
break;
|
||||
|
||||
case SetHubFeature: /* We don't implement these */
|
||||
case ClearHubFeature:
|
||||
switch (wValue) {
|
||||
case C_HUB_OVER_CURRENT:
|
||||
case C_HUB_LOCAL_POWER:
|
||||
len = 0;
|
||||
break;
|
||||
|
||||
default:
|
||||
return -EPIPE;
|
||||
}
|
||||
break;
|
||||
|
||||
case SetPortFeature:
|
||||
if (wIndex > C67X00_PORTS)
|
||||
return -EPIPE;
|
||||
|
||||
switch (wValue) {
|
||||
case USB_PORT_FEAT_SUSPEND:
|
||||
dev_dbg(c67x00_hcd_dev(c67x00),
|
||||
"SetPortFeature %d (SUSPEND)\n", port);
|
||||
len = 0;
|
||||
break;
|
||||
|
||||
case USB_PORT_FEAT_RESET:
|
||||
c67x00_hub_reset_host_port(sie, port);
|
||||
len = 0;
|
||||
break;
|
||||
|
||||
case USB_PORT_FEAT_POWER:
|
||||
/* Power always enabled */
|
||||
len = 0;
|
||||
break;
|
||||
|
||||
default:
|
||||
dev_dbg(c67x00_hcd_dev(c67x00),
|
||||
"%s: SetPortFeature %d (0x%04x) Error!\n",
|
||||
__func__, port, wValue);
|
||||
return -EPIPE;
|
||||
}
|
||||
break;
|
||||
|
||||
case ClearPortFeature:
|
||||
if (wIndex > C67X00_PORTS)
|
||||
return -EPIPE;
|
||||
|
||||
switch (wValue) {
|
||||
case USB_PORT_FEAT_ENABLE:
|
||||
/* Reset the port so that the c67x00 also notices the
|
||||
* disconnect */
|
||||
c67x00_hub_reset_host_port(sie, port);
|
||||
len = 0;
|
||||
break;
|
||||
|
||||
case USB_PORT_FEAT_C_ENABLE:
|
||||
dev_dbg(c67x00_hcd_dev(c67x00),
|
||||
"ClearPortFeature (%d): C_ENABLE\n", port);
|
||||
len = 0;
|
||||
break;
|
||||
|
||||
case USB_PORT_FEAT_SUSPEND:
|
||||
dev_dbg(c67x00_hcd_dev(c67x00),
|
||||
"ClearPortFeature (%d): SUSPEND\n", port);
|
||||
len = 0;
|
||||
break;
|
||||
|
||||
case USB_PORT_FEAT_C_SUSPEND:
|
||||
dev_dbg(c67x00_hcd_dev(c67x00),
|
||||
"ClearPortFeature (%d): C_SUSPEND\n", port);
|
||||
len = 0;
|
||||
break;
|
||||
|
||||
case USB_PORT_FEAT_POWER:
|
||||
dev_dbg(c67x00_hcd_dev(c67x00),
|
||||
"ClearPortFeature (%d): POWER\n", port);
|
||||
return -EPIPE;
|
||||
|
||||
case USB_PORT_FEAT_C_CONNECTION:
|
||||
c67x00_ll_usb_clear_status(sie,
|
||||
PORT_CONNECT_CHANGE(port));
|
||||
len = 0;
|
||||
break;
|
||||
|
||||
case USB_PORT_FEAT_C_OVER_CURRENT:
|
||||
dev_dbg(c67x00_hcd_dev(c67x00),
|
||||
"ClearPortFeature (%d): OVER_CURRENT\n", port);
|
||||
len = 0;
|
||||
break;
|
||||
|
||||
case USB_PORT_FEAT_C_RESET:
|
||||
dev_dbg(c67x00_hcd_dev(c67x00),
|
||||
"ClearPortFeature (%d): C_RESET\n", port);
|
||||
len = 0;
|
||||
break;
|
||||
|
||||
default:
|
||||
dev_dbg(c67x00_hcd_dev(c67x00),
|
||||
"%s: ClearPortFeature %d (0x%04x) Error!\n",
|
||||
__func__, port, wValue);
|
||||
return -EPIPE;
|
||||
}
|
||||
break;
|
||||
|
||||
case GetHubDescriptor:
|
||||
len = min_t(unsigned int, sizeof(c67x00_hub_des), wLength);
|
||||
memcpy(buf, c67x00_hub_des, len);
|
||||
break;
|
||||
|
||||
default:
|
||||
dev_dbg(c67x00_hcd_dev(c67x00), "%s: unknown\n", __func__);
|
||||
return -EPIPE;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* ---------------------------------------------------------------------
|
||||
* Main part of host controller driver
|
||||
*/
|
||||
|
||||
/**
|
||||
* c67x00_hcd_irq
|
||||
*
|
||||
* This function is called from the interrupt handler in c67x00-drv.c
|
||||
*/
|
||||
static void c67x00_hcd_irq(struct c67x00_sie *sie, u16 int_status, u16 msg)
|
||||
{
|
||||
struct c67x00_hcd *c67x00 = sie->private_data;
|
||||
struct usb_hcd *hcd = c67x00_hcd_to_hcd(c67x00);
|
||||
|
||||
/* Handle sie message flags */
|
||||
if (msg) {
|
||||
if (msg & HUSB_TDListDone)
|
||||
c67x00_sched_kick(c67x00);
|
||||
else
|
||||
dev_warn(c67x00_hcd_dev(c67x00),
|
||||
"Unknown SIE msg flag(s): 0x%04x\n", msg);
|
||||
}
|
||||
|
||||
if (unlikely(hcd->state == HC_STATE_HALT))
|
||||
return;
|
||||
|
||||
if (!test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags))
|
||||
return;
|
||||
|
||||
/* Handle Start of frame events */
|
||||
if (int_status & SOFEOP_FLG(sie->sie_num)) {
|
||||
c67x00_ll_usb_clear_status(sie, SOF_EOP_IRQ_FLG);
|
||||
c67x00_sched_kick(c67x00);
|
||||
set_bit(HCD_FLAG_SAW_IRQ, &hcd->flags);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* c67x00_hcd_start: Host controller start hook
|
||||
*/
|
||||
static int c67x00_hcd_start(struct usb_hcd *hcd)
|
||||
{
|
||||
hcd->uses_new_polling = 1;
|
||||
hcd->state = HC_STATE_RUNNING;
|
||||
hcd->poll_rh = 1;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* c67x00_hcd_stop: Host controller stop hook
|
||||
*/
|
||||
static void c67x00_hcd_stop(struct usb_hcd *hcd)
|
||||
{
|
||||
/* Nothing to do */
|
||||
}
|
||||
|
||||
static int c67x00_hcd_get_frame(struct usb_hcd *hcd)
|
||||
{
|
||||
struct c67x00_hcd *c67x00 = hcd_to_c67x00_hcd(hcd);
|
||||
u16 temp_val;
|
||||
|
||||
dev_dbg(c67x00_hcd_dev(c67x00), "%s\n", __func__);
|
||||
temp_val = c67x00_ll_husb_get_frame(c67x00->sie);
|
||||
temp_val &= HOST_FRAME_MASK;
|
||||
return temp_val ? (temp_val - 1) : HOST_FRAME_MASK;
|
||||
}
|
||||
|
||||
static struct hc_driver c67x00_hc_driver = {
|
||||
.description = "c67x00-hcd",
|
||||
.product_desc = "Cypress C67X00 Host Controller",
|
||||
.hcd_priv_size = sizeof(struct c67x00_hcd),
|
||||
.flags = HCD_USB11 | HCD_MEMORY,
|
||||
|
||||
/*
|
||||
* basic lifecycle operations
|
||||
*/
|
||||
.start = c67x00_hcd_start,
|
||||
.stop = c67x00_hcd_stop,
|
||||
|
||||
/*
|
||||
* managing i/o requests and associated device resources
|
||||
*/
|
||||
.urb_enqueue = c67x00_urb_enqueue,
|
||||
.urb_dequeue = c67x00_urb_dequeue,
|
||||
.endpoint_disable = c67x00_endpoint_disable,
|
||||
|
||||
/*
|
||||
* scheduling support
|
||||
*/
|
||||
.get_frame_number = c67x00_hcd_get_frame,
|
||||
|
||||
/*
|
||||
* root hub support
|
||||
*/
|
||||
.hub_status_data = c67x00_hub_status_data,
|
||||
.hub_control = c67x00_hub_control,
|
||||
};
|
||||
|
||||
/* ---------------------------------------------------------------------
|
||||
* Setup/Teardown routines
|
||||
*/
|
||||
|
||||
int c67x00_hcd_probe(struct c67x00_sie *sie)
|
||||
{
|
||||
struct c67x00_hcd *c67x00;
|
||||
struct usb_hcd *hcd;
|
||||
unsigned long flags;
|
||||
int retval;
|
||||
|
||||
if (usb_disabled())
|
||||
return -ENODEV;
|
||||
|
||||
hcd = usb_create_hcd(&c67x00_hc_driver, sie_dev(sie), "c67x00_sie");
|
||||
if (!hcd) {
|
||||
retval = -ENOMEM;
|
||||
goto err0;
|
||||
}
|
||||
c67x00 = hcd_to_c67x00_hcd(hcd);
|
||||
|
||||
spin_lock_init(&c67x00->lock);
|
||||
c67x00->sie = sie;
|
||||
|
||||
INIT_LIST_HEAD(&c67x00->list[PIPE_ISOCHRONOUS]);
|
||||
INIT_LIST_HEAD(&c67x00->list[PIPE_INTERRUPT]);
|
||||
INIT_LIST_HEAD(&c67x00->list[PIPE_CONTROL]);
|
||||
INIT_LIST_HEAD(&c67x00->list[PIPE_BULK]);
|
||||
c67x00->urb_count = 0;
|
||||
INIT_LIST_HEAD(&c67x00->td_list);
|
||||
c67x00->td_base_addr = CY_HCD_BUF_ADDR + SIE_TD_OFFSET(sie->sie_num);
|
||||
c67x00->buf_base_addr = CY_HCD_BUF_ADDR + SIE_BUF_OFFSET(sie->sie_num);
|
||||
c67x00->max_frame_bw = MAX_FRAME_BW_STD;
|
||||
|
||||
c67x00_ll_husb_init_host_port(sie);
|
||||
|
||||
init_completion(&c67x00->endpoint_disable);
|
||||
retval = c67x00_sched_start_scheduler(c67x00);
|
||||
if (retval)
|
||||
goto err1;
|
||||
|
||||
retval = usb_add_hcd(hcd, 0, 0);
|
||||
if (retval) {
|
||||
dev_dbg(sie_dev(sie), "%s: usb_add_hcd returned %d\n",
|
||||
__func__, retval);
|
||||
goto err2;
|
||||
}
|
||||
|
||||
spin_lock_irqsave(&sie->lock, flags);
|
||||
sie->private_data = c67x00;
|
||||
sie->irq = c67x00_hcd_irq;
|
||||
spin_unlock_irqrestore(&sie->lock, flags);
|
||||
|
||||
return retval;
|
||||
|
||||
err2:
|
||||
c67x00_sched_stop_scheduler(c67x00);
|
||||
err1:
|
||||
usb_put_hcd(hcd);
|
||||
err0:
|
||||
return retval;
|
||||
}
|
||||
|
||||
/* may be called with controller, bus, and devices active */
|
||||
void c67x00_hcd_remove(struct c67x00_sie *sie)
|
||||
{
|
||||
struct c67x00_hcd *c67x00 = sie->private_data;
|
||||
struct usb_hcd *hcd = c67x00_hcd_to_hcd(c67x00);
|
||||
|
||||
c67x00_sched_stop_scheduler(c67x00);
|
||||
usb_remove_hcd(hcd);
|
||||
usb_put_hcd(hcd);
|
||||
}
|
||||
133
drivers/usb/c67x00/c67x00-hcd.h
Normal file
133
drivers/usb/c67x00/c67x00-hcd.h
Normal file
|
|
@ -0,0 +1,133 @@
|
|||
/*
|
||||
* c67x00-hcd.h: Cypress C67X00 USB HCD
|
||||
*
|
||||
* Copyright (C) 2006-2008 Barco N.V.
|
||||
* Derived from the Cypress cy7c67200/300 ezusb linux driver and
|
||||
* based on multiple host controller drivers inside the linux kernel.
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
* 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 Street, Fifth Floor, Boston,
|
||||
* MA 02110-1301 USA.
|
||||
*/
|
||||
|
||||
#ifndef _USB_C67X00_HCD_H
|
||||
#define _USB_C67X00_HCD_H
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/spinlock.h>
|
||||
#include <linux/list.h>
|
||||
#include <linux/usb.h>
|
||||
#include "../core/hcd.h"
|
||||
#include "c67x00.h"
|
||||
|
||||
/*
|
||||
* The following parameters depend on the CPU speed, bus speed, ...
|
||||
* These can be tuned for specific use cases, e.g. if isochronous transfers
|
||||
* are very important, bandwith can be sacrificed to guarantee that the
|
||||
* 1ms deadline will be met.
|
||||
* If bulk transfers are important, the MAX_FRAME_BW can be increased,
|
||||
* but some (or many) isochronous deadlines might not be met.
|
||||
*
|
||||
* The values are specified in bittime.
|
||||
*/
|
||||
|
||||
/*
|
||||
* The current implementation switches between _STD (default) and _ISO (when
|
||||
* isochronous transfers are scheduled), in order to optimize the throughput
|
||||
* in normal cicrumstances, but also provide good isochronous behaviour.
|
||||
*
|
||||
* Bandwidth is described in bit time so with a 12MHz USB clock and 1ms
|
||||
* frames; there are 12000 bit times per frame.
|
||||
*/
|
||||
|
||||
#define TOTAL_FRAME_BW 12000
|
||||
#define DEFAULT_EOT 2250
|
||||
|
||||
#define MAX_FRAME_BW_STD (TOTAL_FRAME_BW - DEFAULT_EOT)
|
||||
#define MAX_FRAME_BW_ISO 2400
|
||||
|
||||
/*
|
||||
* Periodic transfers may only use 90% of the full frame, but as
|
||||
* we currently don't even use 90% of the full frame, we may
|
||||
* use the full usable time for periodic transfers.
|
||||
*/
|
||||
#define MAX_PERIODIC_BW(full_bw) full_bw
|
||||
|
||||
/* -------------------------------------------------------------------------- */
|
||||
|
||||
struct c67x00_hcd {
|
||||
spinlock_t lock;
|
||||
struct c67x00_sie *sie;
|
||||
unsigned int low_speed_ports; /* bitmask of low speed ports */
|
||||
unsigned int urb_count;
|
||||
unsigned int urb_iso_count;
|
||||
|
||||
struct list_head list[4]; /* iso, int, ctrl, bulk */
|
||||
#if PIPE_BULK != 3
|
||||
#error "Sanity check failed, this code presumes PIPE_... to range from 0 to 3"
|
||||
#endif
|
||||
|
||||
/* USB bandwidth allocated to td_list */
|
||||
int bandwidth_allocated;
|
||||
/* USB bandwidth allocated for isoc/int transfer */
|
||||
int periodic_bw_allocated;
|
||||
struct list_head td_list;
|
||||
int max_frame_bw;
|
||||
|
||||
u16 td_base_addr;
|
||||
u16 buf_base_addr;
|
||||
u16 next_td_addr;
|
||||
u16 next_buf_addr;
|
||||
|
||||
struct tasklet_struct tasklet;
|
||||
|
||||
struct completion endpoint_disable;
|
||||
|
||||
u16 current_frame;
|
||||
u16 last_frame;
|
||||
};
|
||||
|
||||
static inline struct c67x00_hcd *hcd_to_c67x00_hcd(struct usb_hcd *hcd)
|
||||
{
|
||||
return (struct c67x00_hcd *)(hcd->hcd_priv);
|
||||
}
|
||||
|
||||
static inline struct usb_hcd *c67x00_hcd_to_hcd(struct c67x00_hcd *c67x00)
|
||||
{
|
||||
return container_of((void *)c67x00, struct usb_hcd, hcd_priv);
|
||||
}
|
||||
|
||||
/* ---------------------------------------------------------------------
|
||||
* Functions used by c67x00-drv
|
||||
*/
|
||||
|
||||
int c67x00_hcd_probe(struct c67x00_sie *sie);
|
||||
void c67x00_hcd_remove(struct c67x00_sie *sie);
|
||||
|
||||
/* ---------------------------------------------------------------------
|
||||
* Transfer Descriptor scheduling functions
|
||||
*/
|
||||
int c67x00_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, gfp_t mem_flags);
|
||||
int c67x00_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status);
|
||||
void c67x00_endpoint_disable(struct usb_hcd *hcd,
|
||||
struct usb_host_endpoint *ep);
|
||||
|
||||
void c67x00_hcd_msg_received(struct c67x00_sie *sie, u16 msg);
|
||||
void c67x00_sched_kick(struct c67x00_hcd *c67x00);
|
||||
int c67x00_sched_start_scheduler(struct c67x00_hcd *c67x00);
|
||||
void c67x00_sched_stop_scheduler(struct c67x00_hcd *c67x00);
|
||||
|
||||
#define c67x00_hcd_dev(x) (c67x00_hcd_to_hcd(x)->self.controller)
|
||||
|
||||
#endif /* _USB_C67X00_HCD_H */
|
||||
|
|
@ -296,6 +296,81 @@ static int c67x00_comm_exec_int(struct c67x00_device *dev, u16 nr,
|
|||
return rc;
|
||||
}
|
||||
|
||||
/* -------------------------------------------------------------------------- */
|
||||
/* Host specific functions */
|
||||
|
||||
void c67x00_ll_set_husb_eot(struct c67x00_device *dev, u16 value)
|
||||
{
|
||||
mutex_lock(&dev->hpi.lcp.mutex);
|
||||
hpi_write_word(dev, HUSB_pEOT, value);
|
||||
mutex_unlock(&dev->hpi.lcp.mutex);
|
||||
}
|
||||
|
||||
static inline void c67x00_ll_husb_sie_init(struct c67x00_sie *sie)
|
||||
{
|
||||
struct c67x00_device *dev = sie->dev;
|
||||
struct c67x00_lcp_int_data data;
|
||||
int rc;
|
||||
|
||||
rc = c67x00_comm_exec_int(dev, HUSB_SIE_INIT_INT(sie->sie_num), &data);
|
||||
BUG_ON(rc); /* No return path for error code; crash spectacularly */
|
||||
}
|
||||
|
||||
void c67x00_ll_husb_reset(struct c67x00_sie *sie, int port)
|
||||
{
|
||||
struct c67x00_device *dev = sie->dev;
|
||||
struct c67x00_lcp_int_data data;
|
||||
int rc;
|
||||
|
||||
data.regs[0] = 50; /* Reset USB port for 50ms */
|
||||
data.regs[1] = port | (sie->sie_num << 1);
|
||||
rc = c67x00_comm_exec_int(dev, HUSB_RESET_INT, &data);
|
||||
BUG_ON(rc); /* No return path for error code; crash spectacularly */
|
||||
}
|
||||
|
||||
void c67x00_ll_husb_set_current_td(struct c67x00_sie *sie, u16 addr)
|
||||
{
|
||||
hpi_write_word(sie->dev, HUSB_SIE_pCurrentTDPtr(sie->sie_num), addr);
|
||||
}
|
||||
|
||||
u16 c67x00_ll_husb_get_current_td(struct c67x00_sie *sie)
|
||||
{
|
||||
return hpi_read_word(sie->dev, HUSB_SIE_pCurrentTDPtr(sie->sie_num));
|
||||
}
|
||||
|
||||
u16 c67x00_ll_husb_get_frame(struct c67x00_sie *sie)
|
||||
{
|
||||
return hpi_read_word(sie->dev, HOST_FRAME_REG(sie->sie_num));
|
||||
}
|
||||
|
||||
void c67x00_ll_husb_init_host_port(struct c67x00_sie *sie)
|
||||
{
|
||||
/* Set port into host mode */
|
||||
hpi_set_bits(sie->dev, USB_CTL_REG(sie->sie_num), HOST_MODE);
|
||||
c67x00_ll_husb_sie_init(sie);
|
||||
/* Clear interrupts */
|
||||
c67x00_ll_usb_clear_status(sie, HOST_STAT_MASK);
|
||||
/* Check */
|
||||
if (!(hpi_read_word(sie->dev, USB_CTL_REG(sie->sie_num)) & HOST_MODE))
|
||||
dev_warn(sie_dev(sie),
|
||||
"SIE %d not set to host mode\n", sie->sie_num);
|
||||
}
|
||||
|
||||
void c67x00_ll_husb_reset_port(struct c67x00_sie *sie, int port)
|
||||
{
|
||||
/* Clear connect change */
|
||||
c67x00_ll_usb_clear_status(sie, PORT_CONNECT_CHANGE(port));
|
||||
|
||||
/* Enable interrupts */
|
||||
hpi_set_bits(sie->dev, HPI_IRQ_ROUTING_REG,
|
||||
SOFEOP_TO_CPU_EN(sie->sie_num));
|
||||
hpi_set_bits(sie->dev, HOST_IRQ_EN_REG(sie->sie_num),
|
||||
SOF_EOP_IRQ_EN | DONE_IRQ_EN);
|
||||
|
||||
/* Enable pull down transistors */
|
||||
hpi_set_bits(sie->dev, USB_CTL_REG(sie->sie_num), PORT_RES_EN(port));
|
||||
}
|
||||
|
||||
/* -------------------------------------------------------------------------- */
|
||||
|
||||
void c67x00_ll_irq(struct c67x00_device *dev, u16 int_status)
|
||||
|
|
|
|||
1170
drivers/usb/c67x00/c67x00-sched.c
Normal file
1170
drivers/usb/c67x00/c67x00-sched.c
Normal file
File diff suppressed because it is too large
Load diff
|
|
@ -274,6 +274,15 @@ void c67x00_ll_write_mem_le16(struct c67x00_device *dev, u16 addr,
|
|||
void c67x00_ll_read_mem_le16(struct c67x00_device *dev, u16 addr,
|
||||
void *data, int len);
|
||||
|
||||
/* Host specific functions */
|
||||
void c67x00_ll_set_husb_eot(struct c67x00_device *dev, u16 value);
|
||||
void c67x00_ll_husb_reset(struct c67x00_sie *sie, int port);
|
||||
void c67x00_ll_husb_set_current_td(struct c67x00_sie *sie, u16 addr);
|
||||
u16 c67x00_ll_husb_get_current_td(struct c67x00_sie *sie);
|
||||
u16 c67x00_ll_husb_get_frame(struct c67x00_sie *sie);
|
||||
void c67x00_ll_husb_init_host_port(struct c67x00_sie *sie);
|
||||
void c67x00_ll_husb_reset_port(struct c67x00_sie *sie, int port);
|
||||
|
||||
/* Called by c67x00_irq to handle lcp interrupts */
|
||||
void c67x00_ll_irq(struct c67x00_device *dev, u16 int_status);
|
||||
|
||||
|
|
|
|||
|
|
@ -4,6 +4,19 @@
|
|||
comment "USB Host Controller Drivers"
|
||||
depends on USB
|
||||
|
||||
config USB_C67X00_HCD
|
||||
tristate "Cypress C67x00 HCD support"
|
||||
depends on USB
|
||||
help
|
||||
The Cypress C67x00 (EZ-Host/EZ-OTG) chips are dual-role
|
||||
host/peripheral/OTG USB controllers.
|
||||
|
||||
Enable this option to support this chip in host controller mode.
|
||||
If unsure, say N.
|
||||
|
||||
To compile this driver as a module, choose M here: the
|
||||
module will be called c67x00.
|
||||
|
||||
config USB_EHCI_HCD
|
||||
tristate "EHCI HCD (USB 2.0) support"
|
||||
depends on USB && USB_ARCH_HAS_EHCI
|
||||
|
|
|
|||
Loading…
Reference in a new issue