From fc85d39e7906ab3d6fb21e41e8f35c03b0118290 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Wed, 17 Jun 2015 21:33:57 +0200 Subject: musb: Add musb_host_data struct to hold global data 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 Acked-by: Simon Glass diff --git a/drivers/usb/musb-new/musb_uboot.c b/drivers/usb/musb-new/musb_uboot.c index 10c7cc4..9875100 100644 --- a/drivers/usb/musb-new/musb_uboot.c +++ b/drivers/usb/musb-new/musb_uboot.c @@ -13,6 +13,7 @@ #include "musb_core.h" #include "musb_host.h" #include "musb_gadget.h" +#include "musb_uboot.h" #ifdef CONFIG_MUSB_HOST struct int_queue { @@ -20,9 +21,7 @@ struct int_queue { struct urb urb; }; -static struct musb *host; -static struct usb_hcd hcd; -static enum usb_device_speed host_speed; +struct musb_host_data musb_host; 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; } -static struct usb_host_endpoint hep; -static struct urb urb; - static void construct_urb(struct urb *urb, struct usb_host_endpoint *hep, struct usb_device *dev, int endpoint_type, 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; } -static int _musb_submit_control_msg(struct usb_device *dev, unsigned long pipe, - void *buffer, int len, struct devrequest *setup) +static int _musb_submit_control_msg(struct musb_host_data *host, + struct usb_device *dev, unsigned long pipe, + void *buffer, int len, struct devrequest *setup) { - construct_urb(&urb, &hep, dev, USB_ENDPOINT_XFER_CONTROL, pipe, - buffer, len, setup, 0); + construct_urb(&host->urb, &host->hep, dev, USB_ENDPOINT_XFER_CONTROL, + pipe, buffer, len, setup, 0); /* Fix speed for non hub-attached devices */ 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, - void *buffer, int len) +static int _musb_submit_bulk_msg(struct musb_host_data *host, + struct usb_device *dev, unsigned long pipe, void *buffer, int len) { - construct_urb(&urb, &hep, dev, USB_ENDPOINT_XFER_BULK, pipe, - buffer, len, NULL, 0); - return submit_urb(&hcd, &urb); + construct_urb(&host->urb, &host->hep, dev, USB_ENDPOINT_XFER_BULK, + pipe, buffer, len, NULL, 0); + return submit_urb(&host->hcd, &host->urb); } -static int _musb_submit_int_msg(struct usb_device *dev, unsigned long pipe, - void *buffer, int len, int interval) +static int _musb_submit_int_msg(struct musb_host_data *host, + 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); - return submit_urb(&hcd, &urb); + return submit_urb(&host->hcd, &host->urb); } -static struct int_queue *_musb_create_int_queue(struct usb_device *dev, - unsigned long pipe, int queuesize, int elementsize, - void *buffer, int interval) +static struct int_queue *_musb_create_int_queue(struct musb_host_data *host, + struct usb_device *dev, unsigned long pipe, int queuesize, + int elementsize, void *buffer, int interval) { struct int_queue *queue; 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, 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) { printf("Failed to enqueue URB to controller\n"); free(queue); @@ -154,27 +152,27 @@ static struct int_queue *_musb_create_int_queue(struct usb_device *dev, return queue; } -static int _musb_destroy_int_queue(struct usb_device *dev, - struct int_queue *queue) +static int _musb_destroy_int_queue(struct musb_host_data *host, + struct usb_device *dev, struct int_queue *queue) { int index = usb_pipein(queue->urb.pipe) * 16 + usb_pipeendpoint(queue->urb.pipe); 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); free(queue); return 0; } -static void *_musb_poll_int_queue(struct usb_device *dev, - struct int_queue *queue) +static void *_musb_poll_int_queue(struct musb_host_data *host, + struct usb_device *dev, struct int_queue *queue) { if (queue->urb.status != -EINPROGRESS) 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) 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 */ } -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; power = musb_readb(mbase, MUSB_POWER); @@ -204,33 +203,33 @@ static int _musb_reset_root_port(struct usb_device *dev) #ifdef CONFIG_ARCH_SUNXI sunxi_usb_phy_enable_squelch_detect(0, 1); #endif - host->isr(0, host); - host_speed = (musb_readb(mbase, MUSB_POWER) & MUSB_POWER_HSMODE) ? + host->host->isr(0, host->host); + host->host_speed = (musb_readb(mbase, MUSB_POWER) & MUSB_POWER_HSMODE) ? USB_SPEED_HIGH : (musb_readb(mbase, MUSB_DEVCTL) & MUSB_DEVCTL_FSDEV) ? 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; } -int musb_lowlevel_init(void) +int musb_lowlevel_init(struct musb_host_data *host) { void *mbase; /* USB spec says it may take up to 1 second for a device to connect */ unsigned long timeout = get_timer(0) + 1000; int ret; - if (!host) { + if (!host->host) { printf("MUSB host is not registered\n"); return -ENODEV; } - ret = musb_start(host); + ret = musb_start(host->host); if (ret) return ret; - mbase = host->mregs; + mbase = host->host->mregs; do { if (musb_readb(mbase, MUSB_DEVCTL) & MUSB_DEVCTL_HM) break; @@ -238,68 +237,68 @@ int musb_lowlevel_init(void) if (get_timer(0) >= timeout) return -ENODEV; - _musb_reset_root_port(NULL); - host->is_active = 1; - hcd.hcd_priv = host; + _musb_reset_root_port(host, NULL); + host->host->is_active = 1; + host->hcd.hcd_priv = host->host; return 0; } int usb_lowlevel_stop(int index) { - if (!host) { + if (!musb_host.host) { printf("MUSB host is not registered\n"); return -ENODEV; } - musb_stop(host); + musb_stop(musb_host.host); return 0; } int submit_bulk_msg(struct usb_device *dev, unsigned long pipe, 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, 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, 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, unsigned long pipe, int queuesize, int elementsize, 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); } 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) { - 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) { - 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) { - return musb_lowlevel_init(); + return musb_lowlevel_init(&musb_host); } #endif /* CONFIG_MUSB_HOST */ @@ -363,7 +362,7 @@ int musb_register(struct musb_hdrc_platform_data *plat, void *bdata, switch (plat->mode) { #ifdef CONFIG_MUSB_HOST case MUSB_HOST: - musbp = &host; + musbp = &musb_host.host; break; #endif #ifdef CONFIG_MUSB_GADGET diff --git a/drivers/usb/musb-new/musb_uboot.h b/drivers/usb/musb-new/musb_uboot.h new file mode 100644 index 0000000..69b7977 --- /dev/null +++ b/drivers/usb/musb-new/musb_uboot.h @@ -0,0 +1,24 @@ +/* + * MUSB OTG driver u-boot specific functions + * + * Copyright © 2015 Hans de Goede + * + * SPDX-License-Identifier: GPL-2.0+ + */ +#ifndef __MUSB_UBOOT_H__ +#define __MUSB_UBOOT_H__ + +#include +#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 -- cgit v0.10.2