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musb: Add musb_host_data struct to hold global data

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Add a musb_host_data struct to hold all the global data host related musb
data. This is a preparation patch for adding device-model support.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Hans de Goede 2015-06-17 21:33:57 +02:00 committed by Simon Glass
parent 1398252abf
commit fc85d39e79
2 changed files with 77 additions and 54 deletions
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107
drivers/usb/musb-new/musb_uboot.c
View File

@ -13,6 +13,7 @@
#include "musb_core.h" #include "musb_core.h"
#include "musb_host.h" #include "musb_host.h"
#include "musb_gadget.h" #include "musb_gadget.h"
#include "musb_uboot.h"
#ifdef CONFIG_MUSB_HOST #ifdef CONFIG_MUSB_HOST
struct int_queue { struct int_queue {
@ -20,9 +21,7 @@ struct int_queue {
struct urb urb; struct urb urb;
}; };
static struct musb *host; struct musb_host_data musb_host;
static struct usb_hcd hcd;
static enum usb_device_speed host_speed;
static void musb_host_complete_urb(struct urb *urb) static void musb_host_complete_urb(struct urb *urb)
{ {
@ -30,9 +29,6 @@ static void musb_host_complete_urb(struct urb *urb)
urb->dev->act_len = urb->actual_length; urb->dev->act_len = urb->actual_length;
} }
static struct usb_host_endpoint hep;
static struct urb urb;
static void construct_urb(struct urb *urb, struct usb_host_endpoint *hep, static void construct_urb(struct urb *urb, struct usb_host_endpoint *hep,
struct usb_device *dev, int endpoint_type, struct usb_device *dev, int endpoint_type,
unsigned long pipe, void *buffer, int len, unsigned long pipe, void *buffer, int len,
@ -90,38 +86,40 @@ static int submit_urb(struct usb_hcd *hcd, struct urb *urb)
return urb->status; return urb->status;
} }
static int _musb_submit_control_msg(struct usb_device *dev, unsigned long pipe, static int _musb_submit_control_msg(struct musb_host_data *host,
void *buffer, int len, struct devrequest *setup) struct usb_device *dev, unsigned long pipe,
void *buffer, int len, struct devrequest *setup)
{ {
construct_urb(&urb, &hep, dev, USB_ENDPOINT_XFER_CONTROL, pipe, construct_urb(&host->urb, &host->hep, dev, USB_ENDPOINT_XFER_CONTROL,
buffer, len, setup, 0); pipe, buffer, len, setup, 0);
/* Fix speed for non hub-attached devices */ /* Fix speed for non hub-attached devices */
if (!usb_dev_get_parent(dev)) if (!usb_dev_get_parent(dev))
dev->speed = host_speed; dev->speed = host->host_speed;
return submit_urb(&hcd, &urb); return submit_urb(&host->hcd, &host->urb);
} }
static int _musb_submit_bulk_msg(struct usb_device *dev, unsigned long pipe, static int _musb_submit_bulk_msg(struct musb_host_data *host,
void *buffer, int len) struct usb_device *dev, unsigned long pipe, void *buffer, int len)
{ {
construct_urb(&urb, &hep, dev, USB_ENDPOINT_XFER_BULK, pipe, construct_urb(&host->urb, &host->hep, dev, USB_ENDPOINT_XFER_BULK,
buffer, len, NULL, 0); pipe, buffer, len, NULL, 0);
return submit_urb(&hcd, &urb); return submit_urb(&host->hcd, &host->urb);
} }
static int _musb_submit_int_msg(struct usb_device *dev, unsigned long pipe, static int _musb_submit_int_msg(struct musb_host_data *host,
void *buffer, int len, int interval) struct usb_device *dev, unsigned long pipe,
void *buffer, int len, int interval)
{ {
construct_urb(&urb, &hep, dev, USB_ENDPOINT_XFER_INT, pipe, construct_urb(&host->urb, &host->hep, dev, USB_ENDPOINT_XFER_INT, pipe,
buffer, len, NULL, interval); buffer, len, NULL, interval);
return submit_urb(&hcd, &urb); return submit_urb(&host->hcd, &host->urb);
} }
static struct int_queue *_musb_create_int_queue(struct usb_device *dev, static struct int_queue *_musb_create_int_queue(struct musb_host_data *host,
unsigned long pipe, int queuesize, int elementsize, struct usb_device *dev, unsigned long pipe, int queuesize,
void *buffer, int interval) int elementsize, void *buffer, int interval)
{ {
struct int_queue *queue; struct int_queue *queue;
int ret, index = usb_pipein(pipe) * 16 + usb_pipeendpoint(pipe); int ret, index = usb_pipein(pipe) * 16 + usb_pipeendpoint(pipe);
@ -143,7 +141,7 @@ static struct int_queue *_musb_create_int_queue(struct usb_device *dev,
construct_urb(&queue->urb, &queue->hep, dev, USB_ENDPOINT_XFER_INT, construct_urb(&queue->urb, &queue->hep, dev, USB_ENDPOINT_XFER_INT,
pipe, buffer, elementsize, NULL, interval); pipe, buffer, elementsize, NULL, interval);
ret = musb_urb_enqueue(&hcd, &queue->urb, 0); ret = musb_urb_enqueue(&host->hcd, &queue->urb, 0);
if (ret < 0) { if (ret < 0) {
printf("Failed to enqueue URB to controller\n"); printf("Failed to enqueue URB to controller\n");
free(queue); free(queue);
@ -154,27 +152,27 @@ static struct int_queue *_musb_create_int_queue(struct usb_device *dev,
return queue; return queue;
} }
static int _musb_destroy_int_queue(struct usb_device *dev, static int _musb_destroy_int_queue(struct musb_host_data *host,
struct int_queue *queue) struct usb_device *dev, struct int_queue *queue)
{ {
int index = usb_pipein(queue->urb.pipe) * 16 + int index = usb_pipein(queue->urb.pipe) * 16 +
usb_pipeendpoint(queue->urb.pipe); usb_pipeendpoint(queue->urb.pipe);
if (queue->urb.status == -EINPROGRESS) if (queue->urb.status == -EINPROGRESS)
musb_urb_dequeue(&hcd, &queue->urb, -ETIME); musb_urb_dequeue(&host->hcd, &queue->urb, -ETIME);
dev->int_pending &= ~(1 << index); dev->int_pending &= ~(1 << index);
free(queue); free(queue);
return 0; return 0;
} }
static void *_musb_poll_int_queue(struct usb_device *dev, static void *_musb_poll_int_queue(struct musb_host_data *host,
struct int_queue *queue) struct usb_device *dev, struct int_queue *queue)
{ {
if (queue->urb.status != -EINPROGRESS) if (queue->urb.status != -EINPROGRESS)
return NULL; /* URB has already completed in a prev. poll */ return NULL; /* URB has already completed in a prev. poll */
host->isr(0, host); host->host->isr(0, host->host);
if (queue->urb.status != -EINPROGRESS) if (queue->urb.status != -EINPROGRESS)
return queue->urb.transfer_buffer; /* Done */ return queue->urb.transfer_buffer; /* Done */
@ -182,9 +180,10 @@ static void *_musb_poll_int_queue(struct usb_device *dev,
return NULL; /* URB still pending */ return NULL; /* URB still pending */
} }
static int _musb_reset_root_port(struct usb_device *dev) static int _musb_reset_root_port(struct musb_host_data *host,
struct usb_device *dev)
{ {
void *mbase = host->mregs; void *mbase = host->host->mregs;
u8 power; u8 power;
power = musb_readb(mbase, MUSB_POWER); power = musb_readb(mbase, MUSB_POWER);
@ -204,33 +203,33 @@ static int _musb_reset_root_port(struct usb_device *dev)
#ifdef CONFIG_ARCH_SUNXI #ifdef CONFIG_ARCH_SUNXI
sunxi_usb_phy_enable_squelch_detect(0, 1); sunxi_usb_phy_enable_squelch_detect(0, 1);
#endif #endif
host->isr(0, host); host->host->isr(0, host->host);
host_speed = (musb_readb(mbase, MUSB_POWER) & MUSB_POWER_HSMODE) ? host->host_speed = (musb_readb(mbase, MUSB_POWER) & MUSB_POWER_HSMODE) ?
USB_SPEED_HIGH : USB_SPEED_HIGH :
(musb_readb(mbase, MUSB_DEVCTL) & MUSB_DEVCTL_FSDEV) ? (musb_readb(mbase, MUSB_DEVCTL) & MUSB_DEVCTL_FSDEV) ?
USB_SPEED_FULL : USB_SPEED_LOW; USB_SPEED_FULL : USB_SPEED_LOW;
mdelay((host_speed == USB_SPEED_LOW) ? 200 : 50); mdelay((host->host_speed == USB_SPEED_LOW) ? 200 : 50);
return 0; return 0;
} }
int musb_lowlevel_init(void) int musb_lowlevel_init(struct musb_host_data *host)
{ {
void *mbase; void *mbase;
/* USB spec says it may take up to 1 second for a device to connect */ /* USB spec says it may take up to 1 second for a device to connect */
unsigned long timeout = get_timer(0) + 1000; unsigned long timeout = get_timer(0) + 1000;
int ret; int ret;
if (!host) { if (!host->host) {
printf("MUSB host is not registered\n"); printf("MUSB host is not registered\n");
return -ENODEV; return -ENODEV;
} }
ret = musb_start(host); ret = musb_start(host->host);
if (ret) if (ret)
return ret; return ret;
mbase = host->mregs; mbase = host->host->mregs;
do { do {
if (musb_readb(mbase, MUSB_DEVCTL) & MUSB_DEVCTL_HM) if (musb_readb(mbase, MUSB_DEVCTL) & MUSB_DEVCTL_HM)
break; break;
@ -238,68 +237,68 @@ int musb_lowlevel_init(void)
if (get_timer(0) >= timeout) if (get_timer(0) >= timeout)
return -ENODEV; return -ENODEV;
_musb_reset_root_port(NULL); _musb_reset_root_port(host, NULL);
host->is_active = 1; host->host->is_active = 1;
hcd.hcd_priv = host; host->hcd.hcd_priv = host->host;
return 0; return 0;
} }
int usb_lowlevel_stop(int index) int usb_lowlevel_stop(int index)
{ {
if (!host) { if (!musb_host.host) {
printf("MUSB host is not registered\n"); printf("MUSB host is not registered\n");
return -ENODEV; return -ENODEV;
} }
musb_stop(host); musb_stop(musb_host.host);
return 0; return 0;
} }
int submit_bulk_msg(struct usb_device *dev, unsigned long pipe, int submit_bulk_msg(struct usb_device *dev, unsigned long pipe,
void *buffer, int length) void *buffer, int length)
{ {
return _musb_submit_bulk_msg(dev, pipe, buffer, length); return _musb_submit_bulk_msg(&musb_host, dev, pipe, buffer, length);
} }
int submit_control_msg(struct usb_device *dev, unsigned long pipe, int submit_control_msg(struct usb_device *dev, unsigned long pipe,
void *buffer, int length, struct devrequest *setup) void *buffer, int length, struct devrequest *setup)
{ {
return _musb_submit_control_msg(dev, pipe, buffer, length, setup); return _musb_submit_control_msg(&musb_host, dev, pipe, buffer, length, setup);
} }
int submit_int_msg(struct usb_device *dev, unsigned long pipe, int submit_int_msg(struct usb_device *dev, unsigned long pipe,
void *buffer, int length, int interval) void *buffer, int length, int interval)
{ {
return _musb_submit_int_msg(dev, pipe, buffer, length, interval); return _musb_submit_int_msg(&musb_host, dev, pipe, buffer, length, interval);
} }
struct int_queue *create_int_queue(struct usb_device *dev, struct int_queue *create_int_queue(struct usb_device *dev,
unsigned long pipe, int queuesize, int elementsize, unsigned long pipe, int queuesize, int elementsize,
void *buffer, int interval) void *buffer, int interval)
{ {
return _musb_create_int_queue(dev, pipe, queuesize, elementsize, return _musb_create_int_queue(&musb_host, dev, pipe, queuesize, elementsize,
buffer, interval); buffer, interval);
} }
void *poll_int_queue(struct usb_device *dev, struct int_queue *queue) void *poll_int_queue(struct usb_device *dev, struct int_queue *queue)
{ {
return _musb_poll_int_queue(dev, queue); return _musb_poll_int_queue(&musb_host, dev, queue);
} }
int destroy_int_queue(struct usb_device *dev, struct int_queue *queue) int destroy_int_queue(struct usb_device *dev, struct int_queue *queue)
{ {
return _musb_destroy_int_queue(dev, queue); return _musb_destroy_int_queue(&musb_host, dev, queue);
} }
int usb_reset_root_port(struct usb_device *dev) int usb_reset_root_port(struct usb_device *dev)
{ {
return _musb_reset_root_port(dev); return _musb_reset_root_port(&musb_host, dev);
} }
int usb_lowlevel_init(int index, enum usb_init_type init, void **controller) int usb_lowlevel_init(int index, enum usb_init_type init, void **controller)
{ {
return musb_lowlevel_init(); return musb_lowlevel_init(&musb_host);
} }
#endif /* CONFIG_MUSB_HOST */ #endif /* CONFIG_MUSB_HOST */
@ -363,7 +362,7 @@ int musb_register(struct musb_hdrc_platform_data *plat, void *bdata,
switch (plat->mode) { switch (plat->mode) {
#ifdef CONFIG_MUSB_HOST #ifdef CONFIG_MUSB_HOST
case MUSB_HOST: case MUSB_HOST:
musbp = &host; musbp = &musb_host.host;
break; break;
#endif #endif
#ifdef CONFIG_MUSB_GADGET #ifdef CONFIG_MUSB_GADGET

24
drivers/usb/musb-new/musb_uboot.h Normal file
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@ -0,0 +1,24 @@
/*
* MUSB OTG driver u-boot specific functions
*
* Copyright © 2015 Hans de Goede <hdegoede@redhat.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __MUSB_UBOOT_H__
#define __MUSB_UBOOT_H__
#include <usb.h>
#include "linux-compat.h"
#include "usb-compat.h"
#include "musb_core.h"
struct musb_host_data {
struct musb *host;
struct usb_hcd hcd;
enum usb_device_speed host_speed;
struct usb_host_endpoint hep;
struct urb urb;
};
#endif