2017-11-03 17:28:30 +07:00
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// SPDX-License-Identifier: GPL-1.0+
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2011-04-05 09:40:54 +07:00
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/*
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* Renesas USB driver
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*
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* Copyright (C) 2011 Renesas Solutions Corp.
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2019-06-25 12:38:46 +07:00
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* Copyright (C) 2019 Renesas Electronics Corporation
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2011-04-05 09:40:54 +07:00
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* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
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*/
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2011-11-25 08:28:35 +07:00
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#include <linux/delay.h>
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2011-08-04 11:41:26 +07:00
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#include <linux/dma-mapping.h>
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2011-04-05 09:40:54 +07:00
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#include <linux/io.h>
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <linux/usb/ch9.h>
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#include <linux/usb/gadget.h>
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2015-07-13 22:30:18 +07:00
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#include <linux/usb/otg.h>
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2011-04-05 09:40:54 +07:00
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#include "common.h"
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/*
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* struct
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*/
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struct usbhsg_request {
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struct usb_request req;
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2011-06-06 12:18:07 +07:00
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struct usbhs_pkt pkt;
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2011-04-05 09:40:54 +07:00
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};
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#define EP_NAME_SIZE 8
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struct usbhsg_gpriv;
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struct usbhsg_uep {
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struct usb_ep ep;
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struct usbhs_pipe *pipe;
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2017-07-19 14:16:55 +07:00
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spinlock_t lock; /* protect the pipe */
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2011-04-05 09:40:54 +07:00
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char ep_name[EP_NAME_SIZE];
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struct usbhsg_gpriv *gpriv;
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};
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struct usbhsg_gpriv {
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struct usb_gadget gadget;
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struct usbhs_mod mod;
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struct usbhsg_uep *uep;
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int uep_size;
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struct usb_gadget_driver *driver;
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2015-07-13 22:30:18 +07:00
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struct usb_phy *transceiver;
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bool vbus_active;
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2011-04-05 09:40:54 +07:00
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u32 status;
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#define USBHSG_STATUS_STARTED (1 << 0)
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#define USBHSG_STATUS_REGISTERD (1 << 1)
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#define USBHSG_STATUS_WEDGE (1 << 2)
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2012-03-16 11:10:15 +07:00
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#define USBHSG_STATUS_SELF_POWERED (1 << 3)
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2014-11-04 08:05:43 +07:00
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#define USBHSG_STATUS_SOFT_CONNECT (1 << 4)
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2011-04-05 09:40:54 +07:00
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};
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struct usbhsg_recip_handle {
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char *name;
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int (*device)(struct usbhs_priv *priv, struct usbhsg_uep *uep,
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struct usb_ctrlrequest *ctrl);
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int (*interface)(struct usbhs_priv *priv, struct usbhsg_uep *uep,
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struct usb_ctrlrequest *ctrl);
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int (*endpoint)(struct usbhs_priv *priv, struct usbhsg_uep *uep,
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struct usb_ctrlrequest *ctrl);
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};
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/*
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* macro
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*/
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#define usbhsg_priv_to_gpriv(priv) \
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container_of( \
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usbhs_mod_get(priv, USBHS_GADGET), \
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struct usbhsg_gpriv, mod)
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#define __usbhsg_for_each_uep(start, pos, g, i) \
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2013-07-12 12:32:31 +07:00
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for ((i) = start; \
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((i) < (g)->uep_size) && ((pos) = (g)->uep + (i)); \
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(i)++)
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2011-04-05 09:40:54 +07:00
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#define usbhsg_for_each_uep(pos, gpriv, i) \
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__usbhsg_for_each_uep(1, pos, gpriv, i)
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#define usbhsg_for_each_uep_with_dcp(pos, gpriv, i) \
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__usbhsg_for_each_uep(0, pos, gpriv, i)
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#define usbhsg_gadget_to_gpriv(g)\
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container_of(g, struct usbhsg_gpriv, gadget)
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#define usbhsg_req_to_ureq(r)\
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container_of(r, struct usbhsg_request, req)
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#define usbhsg_ep_to_uep(e) container_of(e, struct usbhsg_uep, ep)
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#define usbhsg_gpriv_to_dev(gp) usbhs_priv_to_dev((gp)->mod.priv)
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#define usbhsg_gpriv_to_priv(gp) ((gp)->mod.priv)
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#define usbhsg_gpriv_to_dcp(gp) ((gp)->uep)
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#define usbhsg_gpriv_to_nth_uep(gp, i) ((gp)->uep + i)
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#define usbhsg_uep_to_gpriv(u) ((u)->gpriv)
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#define usbhsg_uep_to_pipe(u) ((u)->pipe)
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#define usbhsg_pipe_to_uep(p) ((p)->mod_private)
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#define usbhsg_is_dcp(u) ((u) == usbhsg_gpriv_to_dcp((u)->gpriv))
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2011-06-06 12:18:07 +07:00
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#define usbhsg_ureq_to_pkt(u) (&(u)->pkt)
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#define usbhsg_pkt_to_ureq(i) \
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container_of(i, struct usbhsg_request, pkt)
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2011-04-05 09:40:54 +07:00
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#define usbhsg_is_not_connected(gp) ((gp)->gadget.speed == USB_SPEED_UNKNOWN)
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/* status */
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#define usbhsg_status_init(gp) do {(gp)->status = 0; } while (0)
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#define usbhsg_status_set(gp, b) (gp->status |= b)
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#define usbhsg_status_clr(gp, b) (gp->status &= ~b)
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#define usbhsg_status_has(gp, b) (gp->status & b)
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/*
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2011-07-07 14:23:24 +07:00
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* queue push/pop
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2011-04-05 09:40:54 +07:00
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*/
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2015-03-16 14:36:48 +07:00
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static void __usbhsg_queue_pop(struct usbhsg_uep *uep,
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struct usbhsg_request *ureq,
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int status)
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2011-04-05 09:40:54 +07:00
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{
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struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
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struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
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struct device *dev = usbhsg_gpriv_to_dev(gpriv);
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2015-03-16 14:36:48 +07:00
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struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv);
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2011-04-05 09:40:54 +07:00
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2015-11-18 12:33:35 +07:00
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if (pipe)
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dev_dbg(dev, "pipe %d : queue pop\n", usbhs_pipe_number(pipe));
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2011-04-05 09:40:54 +07:00
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ureq->req.status = status;
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2015-03-16 14:36:48 +07:00
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spin_unlock(usbhs_priv_to_lock(priv));
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2014-09-25 03:43:19 +07:00
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usb_gadget_giveback_request(&uep->ep, &ureq->req);
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2015-03-16 14:36:48 +07:00
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spin_lock(usbhs_priv_to_lock(priv));
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}
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static void usbhsg_queue_pop(struct usbhsg_uep *uep,
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struct usbhsg_request *ureq,
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int status)
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{
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struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
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struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv);
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unsigned long flags;
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usbhs_lock(priv, flags);
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__usbhsg_queue_pop(uep, ureq, status);
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usbhs_unlock(priv, flags);
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2011-04-05 09:40:54 +07:00
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}
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2011-10-11 12:03:39 +07:00
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static void usbhsg_queue_done(struct usbhs_priv *priv, struct usbhs_pkt *pkt)
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2011-04-05 09:40:54 +07:00
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{
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2011-06-06 12:18:07 +07:00
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struct usbhs_pipe *pipe = pkt->pipe;
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struct usbhsg_uep *uep = usbhsg_pipe_to_uep(pipe);
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struct usbhsg_request *ureq = usbhsg_pkt_to_ureq(pkt);
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2016-04-04 18:40:20 +07:00
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unsigned long flags;
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2011-04-05 09:40:54 +07:00
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2011-06-06 12:18:23 +07:00
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ureq->req.actual = pkt->actual;
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2011-04-05 09:40:54 +07:00
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2016-04-04 18:40:20 +07:00
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usbhs_lock(priv, flags);
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if (uep)
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__usbhsg_queue_pop(uep, ureq, 0);
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usbhs_unlock(priv, flags);
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2011-06-06 12:18:07 +07:00
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}
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2011-10-11 12:04:41 +07:00
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static void usbhsg_queue_push(struct usbhsg_uep *uep,
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struct usbhsg_request *ureq)
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{
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struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
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struct device *dev = usbhsg_gpriv_to_dev(gpriv);
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struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
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struct usbhs_pkt *pkt = usbhsg_ureq_to_pkt(ureq);
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struct usb_request *req = &ureq->req;
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req->actual = 0;
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req->status = -EINPROGRESS;
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usbhs_pkt_push(pipe, pkt, usbhsg_queue_done,
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2011-12-09 09:28:54 +07:00
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req->buf, req->length, req->zero, -1);
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2011-10-11 12:04:53 +07:00
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usbhs_pkt_start(pipe);
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2011-10-11 12:04:41 +07:00
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dev_dbg(dev, "pipe %d : queue push (%d)\n",
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usbhs_pipe_number(pipe),
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req->length);
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}
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2011-07-07 14:23:24 +07:00
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/*
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* dma map/unmap
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*/
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2016-04-18 14:53:41 +07:00
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static int usbhsg_dma_map_ctrl(struct device *dma_dev, struct usbhs_pkt *pkt,
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int map)
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2011-06-06 12:19:03 +07:00
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{
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struct usbhsg_request *ureq = usbhsg_pkt_to_ureq(pkt);
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struct usb_request *req = &ureq->req;
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struct usbhs_pipe *pipe = pkt->pipe;
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enum dma_data_direction dir;
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2011-12-19 16:57:16 +07:00
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int ret = 0;
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2011-06-06 12:19:03 +07:00
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2011-12-19 16:57:16 +07:00
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dir = usbhs_pipe_is_dir_host(pipe);
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2011-06-06 12:19:03 +07:00
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2011-12-19 16:57:16 +07:00
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if (map) {
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/* it can not use scatter/gather */
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WARN_ON(req->num_sgs);
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2016-04-18 14:53:42 +07:00
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ret = usb_gadget_map_request_by_dev(dma_dev, req, dir);
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2011-12-19 16:57:16 +07:00
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if (ret < 0)
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return ret;
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pkt->dma = req->dma;
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} else {
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2016-04-18 14:53:42 +07:00
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usb_gadget_unmap_request_by_dev(dma_dev, req, dir);
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2011-12-19 16:57:16 +07:00
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}
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return ret;
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2011-06-06 12:19:03 +07:00
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}
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2011-04-05 09:40:54 +07:00
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/*
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* USB_TYPE_STANDARD / clear feature functions
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*/
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static int usbhsg_recip_handler_std_control_done(struct usbhs_priv *priv,
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struct usbhsg_uep *uep,
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struct usb_ctrlrequest *ctrl)
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{
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struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv);
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struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv);
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struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(dcp);
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usbhs_dcp_control_transfer_done(pipe);
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return 0;
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}
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static int usbhsg_recip_handler_std_clear_endpoint(struct usbhs_priv *priv,
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struct usbhsg_uep *uep,
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struct usb_ctrlrequest *ctrl)
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{
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struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
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struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
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if (!usbhsg_status_has(gpriv, USBHSG_STATUS_WEDGE)) {
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2011-06-06 12:18:03 +07:00
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usbhs_pipe_disable(pipe);
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2011-10-11 12:05:30 +07:00
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usbhs_pipe_sequence_data0(pipe);
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2011-06-06 12:18:03 +07:00
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usbhs_pipe_enable(pipe);
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2011-04-05 09:40:54 +07:00
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}
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usbhsg_recip_handler_std_control_done(priv, uep, ctrl);
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2011-11-25 08:28:17 +07:00
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usbhs_pkt_start(pipe);
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2011-04-05 09:40:54 +07:00
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return 0;
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}
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2013-04-01 08:34:43 +07:00
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static struct usbhsg_recip_handle req_clear_feature = {
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2011-04-05 09:40:54 +07:00
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.name = "clear feature",
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.device = usbhsg_recip_handler_std_control_done,
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.interface = usbhsg_recip_handler_std_control_done,
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.endpoint = usbhsg_recip_handler_std_clear_endpoint,
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};
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2011-11-25 08:27:50 +07:00
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/*
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* USB_TYPE_STANDARD / set feature functions
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*/
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2011-11-25 08:28:35 +07:00
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static int usbhsg_recip_handler_std_set_device(struct usbhs_priv *priv,
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struct usbhsg_uep *uep,
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struct usb_ctrlrequest *ctrl)
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{
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switch (le16_to_cpu(ctrl->wValue)) {
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case USB_DEVICE_TEST_MODE:
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usbhsg_recip_handler_std_control_done(priv, uep, ctrl);
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udelay(100);
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usbhs_sys_set_test_mode(priv, le16_to_cpu(ctrl->wIndex >> 8));
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break;
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default:
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usbhsg_recip_handler_std_control_done(priv, uep, ctrl);
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break;
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}
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return 0;
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}
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2011-11-25 08:27:50 +07:00
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static int usbhsg_recip_handler_std_set_endpoint(struct usbhs_priv *priv,
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struct usbhsg_uep *uep,
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struct usb_ctrlrequest *ctrl)
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{
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struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
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usbhs_pipe_stall(pipe);
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usbhsg_recip_handler_std_control_done(priv, uep, ctrl);
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return 0;
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}
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2013-04-01 08:34:43 +07:00
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static struct usbhsg_recip_handle req_set_feature = {
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2011-11-25 08:27:50 +07:00
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.name = "set feature",
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2011-11-25 08:28:35 +07:00
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.device = usbhsg_recip_handler_std_set_device,
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2011-11-25 08:27:50 +07:00
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.interface = usbhsg_recip_handler_std_control_done,
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.endpoint = usbhsg_recip_handler_std_set_endpoint,
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};
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2011-11-25 08:28:04 +07:00
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|
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/*
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* USB_TYPE_STANDARD / get status functions
|
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|
*/
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|
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static void __usbhsg_recip_send_complete(struct usb_ep *ep,
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struct usb_request *req)
|
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|
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{
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struct usbhsg_request *ureq = usbhsg_req_to_ureq(req);
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/* free allocated recip-buffer/usb_request */
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kfree(ureq->pkt.buf);
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|
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usb_ep_free_request(ep, req);
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}
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static void __usbhsg_recip_send_status(struct usbhsg_gpriv *gpriv,
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unsigned short status)
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{
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struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv);
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struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(dcp);
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struct device *dev = usbhsg_gpriv_to_dev(gpriv);
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struct usb_request *req;
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unsigned short *buf;
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/* alloc new usb_request for recip */
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req = usb_ep_alloc_request(&dcp->ep, GFP_ATOMIC);
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if (!req) {
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dev_err(dev, "recip request allocation fail\n");
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return;
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}
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/* alloc recip data buffer */
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buf = kmalloc(sizeof(*buf), GFP_ATOMIC);
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if (!buf) {
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usb_ep_free_request(&dcp->ep, req);
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return;
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}
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/* recip data is status */
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*buf = cpu_to_le16(status);
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/* allocated usb_request/buffer will be freed */
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req->complete = __usbhsg_recip_send_complete;
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req->buf = buf;
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req->length = sizeof(*buf);
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req->zero = 0;
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/* push packet */
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pipe->handler = &usbhs_fifo_pio_push_handler;
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usbhsg_queue_push(dcp, usbhsg_req_to_ureq(req));
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}
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static int usbhsg_recip_handler_std_get_device(struct usbhs_priv *priv,
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struct usbhsg_uep *uep,
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struct usb_ctrlrequest *ctrl)
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|
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{
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struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
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2012-03-16 11:10:15 +07:00
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unsigned short status = 0;
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if (usbhsg_status_has(gpriv, USBHSG_STATUS_SELF_POWERED))
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status = 1 << USB_DEVICE_SELF_POWERED;
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2011-11-25 08:28:04 +07:00
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__usbhsg_recip_send_status(gpriv, status);
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return 0;
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}
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static int usbhsg_recip_handler_std_get_interface(struct usbhs_priv *priv,
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struct usbhsg_uep *uep,
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struct usb_ctrlrequest *ctrl)
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{
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struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
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unsigned short status = 0;
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__usbhsg_recip_send_status(gpriv, status);
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return 0;
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}
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static int usbhsg_recip_handler_std_get_endpoint(struct usbhs_priv *priv,
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struct usbhsg_uep *uep,
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struct usb_ctrlrequest *ctrl)
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{
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struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
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struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
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unsigned short status = 0;
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if (usbhs_pipe_is_stall(pipe))
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status = 1 << USB_ENDPOINT_HALT;
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__usbhsg_recip_send_status(gpriv, status);
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return 0;
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}
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2013-04-01 08:34:43 +07:00
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static struct usbhsg_recip_handle req_get_status = {
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2011-11-25 08:28:04 +07:00
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.name = "get status",
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.device = usbhsg_recip_handler_std_get_device,
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.interface = usbhsg_recip_handler_std_get_interface,
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.endpoint = usbhsg_recip_handler_std_get_endpoint,
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};
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2011-04-05 09:40:54 +07:00
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/*
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* USB_TYPE handler
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*/
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static int usbhsg_recip_run_handle(struct usbhs_priv *priv,
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struct usbhsg_recip_handle *handler,
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struct usb_ctrlrequest *ctrl)
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|
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{
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struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv);
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struct device *dev = usbhsg_gpriv_to_dev(gpriv);
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struct usbhsg_uep *uep;
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2011-06-06 12:18:54 +07:00
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struct usbhs_pipe *pipe;
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2011-04-05 09:40:54 +07:00
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int recip = ctrl->bRequestType & USB_RECIP_MASK;
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int nth = le16_to_cpu(ctrl->wIndex) & USB_ENDPOINT_NUMBER_MASK;
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2012-01-17 04:42:10 +07:00
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int ret = 0;
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2011-04-05 09:40:54 +07:00
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int (*func)(struct usbhs_priv *priv, struct usbhsg_uep *uep,
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struct usb_ctrlrequest *ctrl);
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char *msg;
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uep = usbhsg_gpriv_to_nth_uep(gpriv, nth);
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2011-06-06 12:18:54 +07:00
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pipe = usbhsg_uep_to_pipe(uep);
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if (!pipe) {
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2011-04-21 12:10:12 +07:00
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dev_err(dev, "wrong recip request\n");
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2011-11-25 08:28:17 +07:00
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return -EINVAL;
|
2011-04-21 12:10:12 +07:00
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|
}
|
2011-04-05 09:40:54 +07:00
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switch (recip) {
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case USB_RECIP_DEVICE:
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msg = "DEVICE";
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func = handler->device;
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|
break;
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case USB_RECIP_INTERFACE:
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msg = "INTERFACE";
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func = handler->interface;
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|
break;
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case USB_RECIP_ENDPOINT:
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|
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msg = "ENDPOINT";
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func = handler->endpoint;
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break;
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default:
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|
dev_warn(dev, "unsupported RECIP(%d)\n", recip);
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func = NULL;
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ret = -EINVAL;
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}
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if (func) {
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dev_dbg(dev, "%s (pipe %d :%s)\n", handler->name, nth, msg);
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ret = func(priv, uep, ctrl);
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}
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return ret;
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}
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/*
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* irq functions
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*
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* it will be called from usbhs_interrupt
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*/
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static int usbhsg_irq_dev_state(struct usbhs_priv *priv,
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struct usbhs_irq_state *irq_state)
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{
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struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv);
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struct device *dev = usbhsg_gpriv_to_dev(gpriv);
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2011-10-11 12:01:51 +07:00
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gpriv->gadget.speed = usbhs_bus_get_speed(priv);
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2011-04-05 09:40:54 +07:00
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dev_dbg(dev, "state = %x : speed : %d\n",
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usbhs_status_get_device_state(irq_state),
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gpriv->gadget.speed);
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return 0;
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}
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static int usbhsg_irq_ctrl_stage(struct usbhs_priv *priv,
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struct usbhs_irq_state *irq_state)
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{
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struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv);
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struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv);
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struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(dcp);
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struct device *dev = usbhsg_gpriv_to_dev(gpriv);
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struct usb_ctrlrequest ctrl;
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struct usbhsg_recip_handle *recip_handler = NULL;
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int stage = usbhs_status_get_ctrl_stage(irq_state);
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int ret = 0;
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dev_dbg(dev, "stage = %d\n", stage);
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|
/*
|
|
|
|
* see Manual
|
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|
|
*
|
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|
|
* "Operation"
|
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|
|
* - "Interrupt Function"
|
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|
|
* - "Control Transfer Stage Transition Interrupt"
|
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|
|
* - Fig. "Control Transfer Stage Transitions"
|
|
|
|
*/
|
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switch (stage) {
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|
|
|
case READ_DATA_STAGE:
|
2011-10-11 12:00:59 +07:00
|
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pipe->handler = &usbhs_fifo_pio_push_handler;
|
2011-04-05 09:40:54 +07:00
|
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|
break;
|
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|
|
case WRITE_DATA_STAGE:
|
2011-10-11 12:00:59 +07:00
|
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pipe->handler = &usbhs_fifo_pio_pop_handler;
|
2011-04-05 09:40:54 +07:00
|
|
|
break;
|
|
|
|
case NODATA_STATUS_STAGE:
|
2011-10-11 12:00:59 +07:00
|
|
|
pipe->handler = &usbhs_ctrl_stage_end_handler;
|
2011-04-05 09:40:54 +07:00
|
|
|
break;
|
2014-11-04 08:05:44 +07:00
|
|
|
case READ_STATUS_STAGE:
|
|
|
|
case WRITE_STATUS_STAGE:
|
|
|
|
usbhs_dcp_control_transfer_done(pipe);
|
2018-06-29 01:37:22 +07:00
|
|
|
/* fall through */
|
2011-04-05 09:40:54 +07:00
|
|
|
default:
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* get usb request
|
|
|
|
*/
|
|
|
|
usbhs_usbreq_get_val(priv, &ctrl);
|
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|
|
|
|
|
|
switch (ctrl.bRequestType & USB_TYPE_MASK) {
|
|
|
|
case USB_TYPE_STANDARD:
|
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|
|
switch (ctrl.bRequest) {
|
|
|
|
case USB_REQ_CLEAR_FEATURE:
|
|
|
|
recip_handler = &req_clear_feature;
|
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|
|
break;
|
2011-11-25 08:27:50 +07:00
|
|
|
case USB_REQ_SET_FEATURE:
|
|
|
|
recip_handler = &req_set_feature;
|
|
|
|
break;
|
2011-11-25 08:28:04 +07:00
|
|
|
case USB_REQ_GET_STATUS:
|
|
|
|
recip_handler = &req_get_status;
|
|
|
|
break;
|
2011-04-05 09:40:54 +07:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* setup stage / run recip
|
|
|
|
*/
|
|
|
|
if (recip_handler)
|
|
|
|
ret = usbhsg_recip_run_handle(priv, recip_handler, &ctrl);
|
|
|
|
else
|
|
|
|
ret = gpriv->driver->setup(&gpriv->gadget, &ctrl);
|
|
|
|
|
|
|
|
if (ret < 0)
|
2011-06-06 12:18:03 +07:00
|
|
|
usbhs_pipe_stall(pipe);
|
2011-04-05 09:40:54 +07:00
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
*
|
|
|
|
* usb_dcp_ops
|
|
|
|
*
|
|
|
|
*/
|
|
|
|
static int usbhsg_pipe_disable(struct usbhsg_uep *uep)
|
|
|
|
{
|
|
|
|
struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
|
2011-06-06 12:18:33 +07:00
|
|
|
struct usbhs_pkt *pkt;
|
2011-04-05 09:40:54 +07:00
|
|
|
|
|
|
|
while (1) {
|
2011-06-06 12:18:38 +07:00
|
|
|
pkt = usbhs_pkt_pop(pipe, NULL);
|
2011-06-06 12:18:33 +07:00
|
|
|
if (!pkt)
|
2011-04-05 09:40:54 +07:00
|
|
|
break;
|
2011-11-25 08:28:26 +07:00
|
|
|
|
2016-03-03 16:35:51 +07:00
|
|
|
usbhsg_queue_pop(uep, usbhsg_pkt_to_ureq(pkt), -ESHUTDOWN);
|
2011-04-05 09:40:54 +07:00
|
|
|
}
|
|
|
|
|
2011-11-25 08:28:26 +07:00
|
|
|
usbhs_pipe_disable(pipe);
|
|
|
|
|
2011-04-05 09:40:54 +07:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
*
|
|
|
|
* usb_ep_ops
|
|
|
|
*
|
|
|
|
*/
|
|
|
|
static int usbhsg_ep_enable(struct usb_ep *ep,
|
|
|
|
const struct usb_endpoint_descriptor *desc)
|
|
|
|
{
|
|
|
|
struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep);
|
|
|
|
struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
|
|
|
|
struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv);
|
|
|
|
struct usbhs_pipe *pipe;
|
|
|
|
int ret = -EIO;
|
2016-06-08 14:32:50 +07:00
|
|
|
unsigned long flags;
|
|
|
|
|
|
|
|
usbhs_lock(priv, flags);
|
2011-04-05 09:40:54 +07:00
|
|
|
|
2011-04-26 07:21:35 +07:00
|
|
|
/*
|
|
|
|
* if it already have pipe,
|
|
|
|
* nothing to do
|
|
|
|
*/
|
2011-06-09 14:48:25 +07:00
|
|
|
if (uep->pipe) {
|
|
|
|
usbhs_pipe_clear(uep->pipe);
|
2011-10-11 12:05:30 +07:00
|
|
|
usbhs_pipe_sequence_data0(uep->pipe);
|
2016-06-08 14:32:50 +07:00
|
|
|
ret = 0;
|
|
|
|
goto usbhsg_ep_enable_end;
|
2011-06-09 14:48:25 +07:00
|
|
|
}
|
2011-04-26 07:21:35 +07:00
|
|
|
|
2011-10-11 11:59:46 +07:00
|
|
|
pipe = usbhs_pipe_malloc(priv,
|
|
|
|
usb_endpoint_type(desc),
|
|
|
|
usb_endpoint_dir_in(desc));
|
2011-04-05 09:40:54 +07:00
|
|
|
if (pipe) {
|
|
|
|
uep->pipe = pipe;
|
|
|
|
pipe->mod_private = uep;
|
|
|
|
|
2011-10-11 11:59:46 +07:00
|
|
|
/* set epnum / maxp */
|
2011-10-11 12:04:00 +07:00
|
|
|
usbhs_pipe_config_update(pipe, 0,
|
2011-10-11 11:59:46 +07:00
|
|
|
usb_endpoint_num(desc),
|
|
|
|
usb_endpoint_maxp(desc));
|
|
|
|
|
2011-07-07 14:23:24 +07:00
|
|
|
/*
|
|
|
|
* usbhs_fifo_dma_push/pop_handler try to
|
|
|
|
* use dmaengine if possible.
|
|
|
|
* It will use pio handler if impossible.
|
|
|
|
*/
|
2016-08-08 19:50:52 +07:00
|
|
|
if (usb_endpoint_dir_in(desc)) {
|
2011-10-11 12:00:59 +07:00
|
|
|
pipe->handler = &usbhs_fifo_dma_push_handler;
|
2016-08-08 19:50:52 +07:00
|
|
|
} else {
|
2011-10-11 12:00:59 +07:00
|
|
|
pipe->handler = &usbhs_fifo_dma_pop_handler;
|
2016-08-08 19:50:52 +07:00
|
|
|
usbhs_xxxsts_clear(priv, BRDYSTS,
|
|
|
|
usbhs_pipe_number(pipe));
|
|
|
|
}
|
2011-04-05 09:40:54 +07:00
|
|
|
|
|
|
|
ret = 0;
|
|
|
|
}
|
2011-04-21 12:10:08 +07:00
|
|
|
|
2016-06-08 14:32:50 +07:00
|
|
|
usbhsg_ep_enable_end:
|
|
|
|
usbhs_unlock(priv, flags);
|
|
|
|
|
2011-04-05 09:40:54 +07:00
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int usbhsg_ep_disable(struct usb_ep *ep)
|
|
|
|
{
|
|
|
|
struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep);
|
2017-07-19 14:16:55 +07:00
|
|
|
struct usbhs_pipe *pipe;
|
|
|
|
unsigned long flags;
|
2011-04-05 09:40:54 +07:00
|
|
|
|
2017-07-19 14:16:55 +07:00
|
|
|
spin_lock_irqsave(&uep->lock, flags);
|
|
|
|
pipe = usbhsg_uep_to_pipe(uep);
|
2017-07-28 17:28:57 +07:00
|
|
|
if (!pipe)
|
2017-07-19 14:16:55 +07:00
|
|
|
goto out;
|
2014-11-04 08:05:42 +07:00
|
|
|
|
2012-12-11 13:44:07 +07:00
|
|
|
usbhsg_pipe_disable(uep);
|
2014-07-09 18:30:13 +07:00
|
|
|
usbhs_pipe_free(pipe);
|
2012-12-11 13:44:07 +07:00
|
|
|
|
|
|
|
uep->pipe->mod_private = NULL;
|
|
|
|
uep->pipe = NULL;
|
|
|
|
|
2017-07-19 14:16:55 +07:00
|
|
|
out:
|
|
|
|
spin_unlock_irqrestore(&uep->lock, flags);
|
|
|
|
|
2012-12-11 13:44:07 +07:00
|
|
|
return 0;
|
2011-04-05 09:40:54 +07:00
|
|
|
}
|
|
|
|
|
|
|
|
static struct usb_request *usbhsg_ep_alloc_request(struct usb_ep *ep,
|
|
|
|
gfp_t gfp_flags)
|
|
|
|
{
|
|
|
|
struct usbhsg_request *ureq;
|
|
|
|
|
|
|
|
ureq = kzalloc(sizeof *ureq, gfp_flags);
|
|
|
|
if (!ureq)
|
|
|
|
return NULL;
|
|
|
|
|
2011-06-06 12:18:16 +07:00
|
|
|
usbhs_pkt_init(usbhsg_ureq_to_pkt(ureq));
|
|
|
|
|
2011-04-05 09:40:54 +07:00
|
|
|
return &ureq->req;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void usbhsg_ep_free_request(struct usb_ep *ep,
|
|
|
|
struct usb_request *req)
|
|
|
|
{
|
|
|
|
struct usbhsg_request *ureq = usbhsg_req_to_ureq(req);
|
|
|
|
|
2011-06-06 12:18:16 +07:00
|
|
|
WARN_ON(!list_empty(&ureq->pkt.node));
|
2011-04-05 09:40:54 +07:00
|
|
|
kfree(ureq);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int usbhsg_ep_queue(struct usb_ep *ep, struct usb_request *req,
|
|
|
|
gfp_t gfp_flags)
|
|
|
|
{
|
|
|
|
struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep);
|
|
|
|
struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
|
|
|
|
struct usbhsg_request *ureq = usbhsg_req_to_ureq(req);
|
|
|
|
struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
|
|
|
|
|
|
|
|
/* param check */
|
|
|
|
if (usbhsg_is_not_connected(gpriv) ||
|
|
|
|
unlikely(!gpriv->driver) ||
|
|
|
|
unlikely(!pipe))
|
2011-06-06 12:18:38 +07:00
|
|
|
return -ESHUTDOWN;
|
2011-04-05 09:40:54 +07:00
|
|
|
|
2011-06-06 12:18:38 +07:00
|
|
|
usbhsg_queue_push(uep, ureq);
|
2011-04-05 09:40:54 +07:00
|
|
|
|
2011-06-06 12:18:38 +07:00
|
|
|
return 0;
|
2011-04-05 09:40:54 +07:00
|
|
|
}
|
|
|
|
|
|
|
|
static int usbhsg_ep_dequeue(struct usb_ep *ep, struct usb_request *req)
|
|
|
|
{
|
|
|
|
struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep);
|
|
|
|
struct usbhsg_request *ureq = usbhsg_req_to_ureq(req);
|
2017-07-19 14:16:55 +07:00
|
|
|
struct usbhs_pipe *pipe;
|
|
|
|
unsigned long flags;
|
2011-04-05 09:40:54 +07:00
|
|
|
|
2017-07-19 14:16:55 +07:00
|
|
|
spin_lock_irqsave(&uep->lock, flags);
|
|
|
|
pipe = usbhsg_uep_to_pipe(uep);
|
2015-11-18 12:33:35 +07:00
|
|
|
if (pipe)
|
|
|
|
usbhs_pkt_pop(pipe, usbhsg_ureq_to_pkt(ureq));
|
|
|
|
|
|
|
|
/*
|
|
|
|
* To dequeue a request, this driver should call the usbhsg_queue_pop()
|
|
|
|
* even if the pipe is NULL.
|
|
|
|
*/
|
2011-04-05 09:40:54 +07:00
|
|
|
usbhsg_queue_pop(uep, ureq, -ECONNRESET);
|
2017-07-19 14:16:55 +07:00
|
|
|
spin_unlock_irqrestore(&uep->lock, flags);
|
2011-04-05 09:40:54 +07:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int __usbhsg_ep_set_halt_wedge(struct usb_ep *ep, int halt, int wedge)
|
|
|
|
{
|
|
|
|
struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep);
|
|
|
|
struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
|
|
|
|
struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
|
2011-06-06 12:18:38 +07:00
|
|
|
struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv);
|
2011-04-05 09:40:54 +07:00
|
|
|
struct device *dev = usbhsg_gpriv_to_dev(gpriv);
|
|
|
|
unsigned long flags;
|
|
|
|
|
2011-06-06 12:18:38 +07:00
|
|
|
usbhsg_pipe_disable(uep);
|
2011-04-05 09:40:54 +07:00
|
|
|
|
2011-06-06 12:18:38 +07:00
|
|
|
dev_dbg(dev, "set halt %d (pipe %d)\n",
|
|
|
|
halt, usbhs_pipe_number(pipe));
|
2011-04-05 09:40:54 +07:00
|
|
|
|
2011-06-06 12:18:38 +07:00
|
|
|
/******************** spin lock ********************/
|
|
|
|
usbhs_lock(priv, flags);
|
2011-04-05 09:40:54 +07:00
|
|
|
|
2011-06-06 12:18:38 +07:00
|
|
|
if (halt)
|
|
|
|
usbhs_pipe_stall(pipe);
|
|
|
|
else
|
|
|
|
usbhs_pipe_disable(pipe);
|
2011-04-05 09:40:54 +07:00
|
|
|
|
2011-06-06 12:18:38 +07:00
|
|
|
if (halt && wedge)
|
|
|
|
usbhsg_status_set(gpriv, USBHSG_STATUS_WEDGE);
|
|
|
|
else
|
|
|
|
usbhsg_status_clr(gpriv, USBHSG_STATUS_WEDGE);
|
2011-04-05 09:40:54 +07:00
|
|
|
|
2011-06-06 12:18:38 +07:00
|
|
|
usbhs_unlock(priv, flags);
|
2011-04-05 09:40:54 +07:00
|
|
|
/******************** spin unlock ******************/
|
|
|
|
|
2011-06-06 12:18:38 +07:00
|
|
|
return 0;
|
2011-04-05 09:40:54 +07:00
|
|
|
}
|
|
|
|
|
|
|
|
static int usbhsg_ep_set_halt(struct usb_ep *ep, int value)
|
|
|
|
{
|
|
|
|
return __usbhsg_ep_set_halt_wedge(ep, value, 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int usbhsg_ep_set_wedge(struct usb_ep *ep)
|
|
|
|
{
|
|
|
|
return __usbhsg_ep_set_halt_wedge(ep, 1, 1);
|
|
|
|
}
|
|
|
|
|
2017-08-12 19:04:53 +07:00
|
|
|
static const struct usb_ep_ops usbhsg_ep_ops = {
|
2011-04-05 09:40:54 +07:00
|
|
|
.enable = usbhsg_ep_enable,
|
|
|
|
.disable = usbhsg_ep_disable,
|
|
|
|
|
|
|
|
.alloc_request = usbhsg_ep_alloc_request,
|
|
|
|
.free_request = usbhsg_ep_free_request,
|
|
|
|
|
|
|
|
.queue = usbhsg_ep_queue,
|
|
|
|
.dequeue = usbhsg_ep_dequeue,
|
|
|
|
|
|
|
|
.set_halt = usbhsg_ep_set_halt,
|
|
|
|
.set_wedge = usbhsg_ep_set_wedge,
|
|
|
|
};
|
|
|
|
|
2014-11-04 08:05:43 +07:00
|
|
|
/*
|
|
|
|
* pullup control
|
|
|
|
*/
|
|
|
|
static int usbhsg_can_pullup(struct usbhs_priv *priv)
|
|
|
|
{
|
|
|
|
struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv);
|
|
|
|
|
|
|
|
return gpriv->driver &&
|
|
|
|
usbhsg_status_has(gpriv, USBHSG_STATUS_SOFT_CONNECT);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void usbhsg_update_pullup(struct usbhs_priv *priv)
|
|
|
|
{
|
|
|
|
if (usbhsg_can_pullup(priv))
|
|
|
|
usbhs_sys_function_pullup(priv, 1);
|
|
|
|
else
|
|
|
|
usbhs_sys_function_pullup(priv, 0);
|
|
|
|
}
|
|
|
|
|
2011-04-05 09:40:54 +07:00
|
|
|
/*
|
|
|
|
* usb module start/end
|
|
|
|
*/
|
|
|
|
static int usbhsg_try_start(struct usbhs_priv *priv, u32 status)
|
|
|
|
{
|
|
|
|
struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv);
|
|
|
|
struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv);
|
|
|
|
struct usbhs_mod *mod = usbhs_mod_get_current(priv);
|
|
|
|
struct device *dev = usbhs_priv_to_dev(priv);
|
|
|
|
unsigned long flags;
|
2011-06-06 12:18:38 +07:00
|
|
|
int ret = 0;
|
2011-04-05 09:40:54 +07:00
|
|
|
|
|
|
|
/******************** spin lock ********************/
|
2011-06-06 12:18:38 +07:00
|
|
|
usbhs_lock(priv, flags);
|
2011-04-05 09:40:54 +07:00
|
|
|
|
|
|
|
usbhsg_status_set(gpriv, status);
|
|
|
|
if (!(usbhsg_status_has(gpriv, USBHSG_STATUS_STARTED) &&
|
|
|
|
usbhsg_status_has(gpriv, USBHSG_STATUS_REGISTERD)))
|
2011-06-06 12:18:38 +07:00
|
|
|
ret = -1; /* not ready */
|
|
|
|
|
|
|
|
usbhs_unlock(priv, flags);
|
|
|
|
/******************** spin unlock ********************/
|
|
|
|
|
|
|
|
if (ret < 0)
|
|
|
|
return 0; /* not ready is not error */
|
2011-04-05 09:40:54 +07:00
|
|
|
|
2011-06-06 12:18:38 +07:00
|
|
|
/*
|
|
|
|
* enable interrupt and systems if ready
|
|
|
|
*/
|
2011-04-05 09:40:54 +07:00
|
|
|
dev_dbg(dev, "start gadget\n");
|
|
|
|
|
|
|
|
/*
|
|
|
|
* pipe initialize and enable DCP
|
|
|
|
*/
|
2014-11-04 08:05:45 +07:00
|
|
|
usbhs_fifo_init(priv);
|
2011-06-06 12:18:07 +07:00
|
|
|
usbhs_pipe_init(priv,
|
2011-06-06 12:19:03 +07:00
|
|
|
usbhsg_dma_map_ctrl);
|
2011-06-06 12:18:38 +07:00
|
|
|
|
2012-12-11 13:44:07 +07:00
|
|
|
/* dcp init instead of usbhsg_ep_enable() */
|
2011-06-06 12:18:38 +07:00
|
|
|
dcp->pipe = usbhs_dcp_malloc(priv);
|
|
|
|
dcp->pipe->mod_private = dcp;
|
2011-10-11 12:04:00 +07:00
|
|
|
usbhs_pipe_config_update(dcp->pipe, 0, 0, 64);
|
2011-04-05 09:40:54 +07:00
|
|
|
|
|
|
|
/*
|
|
|
|
* system config enble
|
|
|
|
* - HI speed
|
|
|
|
* - function
|
|
|
|
* - usb module
|
|
|
|
*/
|
|
|
|
usbhs_sys_function_ctrl(priv, 1);
|
2014-11-04 08:05:43 +07:00
|
|
|
usbhsg_update_pullup(priv);
|
2011-04-05 09:40:54 +07:00
|
|
|
|
|
|
|
/*
|
|
|
|
* enable irq callback
|
|
|
|
*/
|
|
|
|
mod->irq_dev_state = usbhsg_irq_dev_state;
|
|
|
|
mod->irq_ctrl_stage = usbhsg_irq_ctrl_stage;
|
|
|
|
usbhs_irq_callback_update(priv, mod);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int usbhsg_try_stop(struct usbhs_priv *priv, u32 status)
|
|
|
|
{
|
|
|
|
struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv);
|
|
|
|
struct usbhs_mod *mod = usbhs_mod_get_current(priv);
|
2017-07-19 14:16:55 +07:00
|
|
|
struct usbhsg_uep *uep;
|
2011-04-05 09:40:54 +07:00
|
|
|
struct device *dev = usbhs_priv_to_dev(priv);
|
|
|
|
unsigned long flags;
|
2017-07-19 14:16:55 +07:00
|
|
|
int ret = 0, i;
|
2011-04-05 09:40:54 +07:00
|
|
|
|
|
|
|
/******************** spin lock ********************/
|
2011-06-06 12:18:38 +07:00
|
|
|
usbhs_lock(priv, flags);
|
2011-04-05 09:40:54 +07:00
|
|
|
|
|
|
|
usbhsg_status_clr(gpriv, status);
|
|
|
|
if (!usbhsg_status_has(gpriv, USBHSG_STATUS_STARTED) &&
|
|
|
|
!usbhsg_status_has(gpriv, USBHSG_STATUS_REGISTERD))
|
2011-06-06 12:18:38 +07:00
|
|
|
ret = -1; /* already done */
|
|
|
|
|
|
|
|
usbhs_unlock(priv, flags);
|
|
|
|
/******************** spin unlock ********************/
|
|
|
|
|
|
|
|
if (ret < 0)
|
|
|
|
return 0; /* already done is not error */
|
2011-04-05 09:40:54 +07:00
|
|
|
|
2011-06-06 12:18:38 +07:00
|
|
|
/*
|
|
|
|
* disable interrupt and systems if 1st try
|
|
|
|
*/
|
2011-06-06 12:18:28 +07:00
|
|
|
usbhs_fifo_quit(priv);
|
|
|
|
|
2011-04-05 09:40:54 +07:00
|
|
|
/* disable all irq */
|
|
|
|
mod->irq_dev_state = NULL;
|
|
|
|
mod->irq_ctrl_stage = NULL;
|
|
|
|
usbhs_irq_callback_update(priv, mod);
|
|
|
|
|
|
|
|
gpriv->gadget.speed = USB_SPEED_UNKNOWN;
|
|
|
|
|
|
|
|
/* disable sys */
|
2011-11-25 08:28:35 +07:00
|
|
|
usbhs_sys_set_test_mode(priv, 0);
|
2011-04-05 09:40:54 +07:00
|
|
|
usbhs_sys_function_ctrl(priv, 0);
|
|
|
|
|
2017-07-19 14:16:55 +07:00
|
|
|
/* disable all eps */
|
|
|
|
usbhsg_for_each_uep_with_dcp(uep, gpriv, i)
|
|
|
|
usbhsg_ep_disable(&uep->ep);
|
2011-04-05 09:40:54 +07:00
|
|
|
|
|
|
|
dev_dbg(dev, "stop gadget\n");
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2015-07-13 22:30:18 +07:00
|
|
|
/*
|
|
|
|
* VBUS provided by the PHY
|
|
|
|
*/
|
|
|
|
static int usbhsm_phy_get_vbus(struct platform_device *pdev)
|
|
|
|
{
|
|
|
|
struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev);
|
|
|
|
struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv);
|
|
|
|
|
|
|
|
return gpriv->vbus_active;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void usbhs_mod_phy_mode(struct usbhs_priv *priv)
|
|
|
|
{
|
|
|
|
struct usbhs_mod_info *info = &priv->mod_info;
|
|
|
|
|
2019-06-25 12:38:48 +07:00
|
|
|
info->irq_vbus = NULL;
|
|
|
|
info->get_vbus = usbhsm_phy_get_vbus;
|
2015-07-13 22:30:18 +07:00
|
|
|
|
|
|
|
usbhs_irq_callback_update(priv, NULL);
|
|
|
|
}
|
|
|
|
|
2011-04-05 09:40:54 +07:00
|
|
|
/*
|
|
|
|
*
|
|
|
|
* linux usb function
|
|
|
|
*
|
|
|
|
*/
|
2011-10-10 21:11:20 +07:00
|
|
|
static int usbhsg_gadget_start(struct usb_gadget *gadget,
|
|
|
|
struct usb_gadget_driver *driver)
|
2011-04-05 09:40:54 +07:00
|
|
|
{
|
2011-10-10 21:11:20 +07:00
|
|
|
struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget);
|
2011-11-18 09:19:06 +07:00
|
|
|
struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv);
|
2015-07-13 22:30:18 +07:00
|
|
|
struct device *dev = usbhs_priv_to_dev(priv);
|
|
|
|
int ret;
|
2011-04-05 09:40:54 +07:00
|
|
|
|
2011-10-10 21:11:20 +07:00
|
|
|
if (!driver ||
|
2011-04-05 09:40:54 +07:00
|
|
|
!driver->setup ||
|
2011-11-20 00:27:38 +07:00
|
|
|
driver->max_speed < USB_SPEED_FULL)
|
2011-04-05 09:40:54 +07:00
|
|
|
return -EINVAL;
|
2011-07-04 07:42:35 +07:00
|
|
|
|
2015-07-13 22:30:18 +07:00
|
|
|
/* connect to bus through transceiver */
|
|
|
|
if (!IS_ERR_OR_NULL(gpriv->transceiver)) {
|
|
|
|
ret = otg_set_peripheral(gpriv->transceiver->otg,
|
|
|
|
&gpriv->gadget);
|
|
|
|
if (ret) {
|
|
|
|
dev_err(dev, "%s: can't bind to transceiver\n",
|
|
|
|
gpriv->gadget.name);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* get vbus using phy versions */
|
|
|
|
usbhs_mod_phy_mode(priv);
|
|
|
|
}
|
|
|
|
|
2011-04-05 09:40:54 +07:00
|
|
|
/* first hook up the driver ... */
|
|
|
|
gpriv->driver = driver;
|
|
|
|
|
|
|
|
return usbhsg_try_start(priv, USBHSG_STATUS_REGISTERD);
|
|
|
|
}
|
|
|
|
|
2014-10-18 00:05:12 +07:00
|
|
|
static int usbhsg_gadget_stop(struct usb_gadget *gadget)
|
2011-04-05 09:40:54 +07:00
|
|
|
{
|
2011-10-10 21:11:20 +07:00
|
|
|
struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget);
|
2011-11-18 09:19:06 +07:00
|
|
|
struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv);
|
2011-04-05 09:40:54 +07:00
|
|
|
|
|
|
|
usbhsg_try_stop(priv, USBHSG_STATUS_REGISTERD);
|
2015-07-13 22:30:18 +07:00
|
|
|
|
|
|
|
if (!IS_ERR_OR_NULL(gpriv->transceiver))
|
|
|
|
otg_set_peripheral(gpriv->transceiver->otg, NULL);
|
|
|
|
|
2011-04-05 09:40:54 +07:00
|
|
|
gpriv->driver = NULL;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* usb gadget ops
|
|
|
|
*/
|
|
|
|
static int usbhsg_get_frame(struct usb_gadget *gadget)
|
|
|
|
{
|
|
|
|
struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget);
|
|
|
|
struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv);
|
|
|
|
|
|
|
|
return usbhs_frame_get_num(priv);
|
|
|
|
}
|
|
|
|
|
2012-10-16 13:24:19 +07:00
|
|
|
static int usbhsg_pullup(struct usb_gadget *gadget, int is_on)
|
|
|
|
{
|
|
|
|
struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget);
|
|
|
|
struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv);
|
2014-11-04 08:05:43 +07:00
|
|
|
unsigned long flags;
|
2012-10-16 13:24:19 +07:00
|
|
|
|
2014-11-04 08:05:43 +07:00
|
|
|
usbhs_lock(priv, flags);
|
|
|
|
if (is_on)
|
|
|
|
usbhsg_status_set(gpriv, USBHSG_STATUS_SOFT_CONNECT);
|
|
|
|
else
|
|
|
|
usbhsg_status_clr(gpriv, USBHSG_STATUS_SOFT_CONNECT);
|
|
|
|
usbhsg_update_pullup(priv);
|
|
|
|
usbhs_unlock(priv, flags);
|
2012-10-16 13:24:19 +07:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2012-03-16 11:10:15 +07:00
|
|
|
static int usbhsg_set_selfpowered(struct usb_gadget *gadget, int is_self)
|
|
|
|
{
|
|
|
|
struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget);
|
|
|
|
|
|
|
|
if (is_self)
|
|
|
|
usbhsg_status_set(gpriv, USBHSG_STATUS_SELF_POWERED);
|
|
|
|
else
|
|
|
|
usbhsg_status_clr(gpriv, USBHSG_STATUS_SELF_POWERED);
|
|
|
|
|
2015-01-28 15:32:28 +07:00
|
|
|
gadget->is_selfpowered = (is_self != 0);
|
|
|
|
|
2012-03-16 11:10:15 +07:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2015-07-13 22:30:18 +07:00
|
|
|
static int usbhsg_vbus_session(struct usb_gadget *gadget, int is_active)
|
|
|
|
{
|
|
|
|
struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget);
|
|
|
|
struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv);
|
|
|
|
struct platform_device *pdev = usbhs_priv_to_pdev(priv);
|
|
|
|
|
|
|
|
gpriv->vbus_active = !!is_active;
|
|
|
|
|
2019-06-25 12:38:46 +07:00
|
|
|
usbhsc_schedule_notify_hotplug(pdev);
|
2015-07-13 22:30:18 +07:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2013-01-24 22:58:16 +07:00
|
|
|
static const struct usb_gadget_ops usbhsg_gadget_ops = {
|
2011-04-05 09:40:54 +07:00
|
|
|
.get_frame = usbhsg_get_frame,
|
2012-03-16 11:10:15 +07:00
|
|
|
.set_selfpowered = usbhsg_set_selfpowered,
|
2011-10-10 21:11:20 +07:00
|
|
|
.udc_start = usbhsg_gadget_start,
|
|
|
|
.udc_stop = usbhsg_gadget_stop,
|
2012-10-16 13:24:19 +07:00
|
|
|
.pullup = usbhsg_pullup,
|
2015-07-13 22:30:18 +07:00
|
|
|
.vbus_session = usbhsg_vbus_session,
|
2011-04-05 09:40:54 +07:00
|
|
|
};
|
|
|
|
|
|
|
|
static int usbhsg_start(struct usbhs_priv *priv)
|
|
|
|
{
|
|
|
|
return usbhsg_try_start(priv, USBHSG_STATUS_STARTED);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int usbhsg_stop(struct usbhs_priv *priv)
|
|
|
|
{
|
2011-11-18 09:19:38 +07:00
|
|
|
struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv);
|
|
|
|
|
|
|
|
/* cable disconnect */
|
|
|
|
if (gpriv->driver &&
|
|
|
|
gpriv->driver->disconnect)
|
|
|
|
gpriv->driver->disconnect(&gpriv->gadget);
|
|
|
|
|
2011-04-05 09:40:54 +07:00
|
|
|
return usbhsg_try_stop(priv, USBHSG_STATUS_STARTED);
|
|
|
|
}
|
|
|
|
|
2011-10-27 09:33:49 +07:00
|
|
|
int usbhs_mod_gadget_probe(struct usbhs_priv *priv)
|
2011-04-05 09:40:54 +07:00
|
|
|
{
|
|
|
|
struct usbhsg_gpriv *gpriv;
|
|
|
|
struct usbhsg_uep *uep;
|
|
|
|
struct device *dev = usbhs_priv_to_dev(priv);
|
2015-11-18 12:34:10 +07:00
|
|
|
struct renesas_usbhs_driver_pipe_config *pipe_configs =
|
|
|
|
usbhs_get_dparam(priv, pipe_configs);
|
2011-04-05 09:40:54 +07:00
|
|
|
int pipe_size = usbhs_get_dparam(priv, pipe_size);
|
|
|
|
int i;
|
2011-06-28 20:33:47 +07:00
|
|
|
int ret;
|
2011-04-05 09:40:54 +07:00
|
|
|
|
|
|
|
gpriv = kzalloc(sizeof(struct usbhsg_gpriv), GFP_KERNEL);
|
2016-08-26 00:39:28 +07:00
|
|
|
if (!gpriv)
|
2011-04-05 09:40:54 +07:00
|
|
|
return -ENOMEM;
|
|
|
|
|
treewide: kzalloc() -> kcalloc()
The kzalloc() function has a 2-factor argument form, kcalloc(). This
patch replaces cases of:
kzalloc(a * b, gfp)
with:
kcalloc(a * b, gfp)
as well as handling cases of:
kzalloc(a * b * c, gfp)
with:
kzalloc(array3_size(a, b, c), gfp)
as it's slightly less ugly than:
kzalloc_array(array_size(a, b), c, gfp)
This does, however, attempt to ignore constant size factors like:
kzalloc(4 * 1024, gfp)
though any constants defined via macros get caught up in the conversion.
Any factors with a sizeof() of "unsigned char", "char", and "u8" were
dropped, since they're redundant.
The Coccinelle script used for this was:
// Fix redundant parens around sizeof().
@@
type TYPE;
expression THING, E;
@@
(
kzalloc(
- (sizeof(TYPE)) * E
+ sizeof(TYPE) * E
, ...)
|
kzalloc(
- (sizeof(THING)) * E
+ sizeof(THING) * E
, ...)
)
// Drop single-byte sizes and redundant parens.
@@
expression COUNT;
typedef u8;
typedef __u8;
@@
(
kzalloc(
- sizeof(u8) * (COUNT)
+ COUNT
, ...)
|
kzalloc(
- sizeof(__u8) * (COUNT)
+ COUNT
, ...)
|
kzalloc(
- sizeof(char) * (COUNT)
+ COUNT
, ...)
|
kzalloc(
- sizeof(unsigned char) * (COUNT)
+ COUNT
, ...)
|
kzalloc(
- sizeof(u8) * COUNT
+ COUNT
, ...)
|
kzalloc(
- sizeof(__u8) * COUNT
+ COUNT
, ...)
|
kzalloc(
- sizeof(char) * COUNT
+ COUNT
, ...)
|
kzalloc(
- sizeof(unsigned char) * COUNT
+ COUNT
, ...)
)
// 2-factor product with sizeof(type/expression) and identifier or constant.
@@
type TYPE;
expression THING;
identifier COUNT_ID;
constant COUNT_CONST;
@@
(
- kzalloc
+ kcalloc
(
- sizeof(TYPE) * (COUNT_ID)
+ COUNT_ID, sizeof(TYPE)
, ...)
|
- kzalloc
+ kcalloc
(
- sizeof(TYPE) * COUNT_ID
+ COUNT_ID, sizeof(TYPE)
, ...)
|
- kzalloc
+ kcalloc
(
- sizeof(TYPE) * (COUNT_CONST)
+ COUNT_CONST, sizeof(TYPE)
, ...)
|
- kzalloc
+ kcalloc
(
- sizeof(TYPE) * COUNT_CONST
+ COUNT_CONST, sizeof(TYPE)
, ...)
|
- kzalloc
+ kcalloc
(
- sizeof(THING) * (COUNT_ID)
+ COUNT_ID, sizeof(THING)
, ...)
|
- kzalloc
+ kcalloc
(
- sizeof(THING) * COUNT_ID
+ COUNT_ID, sizeof(THING)
, ...)
|
- kzalloc
+ kcalloc
(
- sizeof(THING) * (COUNT_CONST)
+ COUNT_CONST, sizeof(THING)
, ...)
|
- kzalloc
+ kcalloc
(
- sizeof(THING) * COUNT_CONST
+ COUNT_CONST, sizeof(THING)
, ...)
)
// 2-factor product, only identifiers.
@@
identifier SIZE, COUNT;
@@
- kzalloc
+ kcalloc
(
- SIZE * COUNT
+ COUNT, SIZE
, ...)
// 3-factor product with 1 sizeof(type) or sizeof(expression), with
// redundant parens removed.
@@
expression THING;
identifier STRIDE, COUNT;
type TYPE;
@@
(
kzalloc(
- sizeof(TYPE) * (COUNT) * (STRIDE)
+ array3_size(COUNT, STRIDE, sizeof(TYPE))
, ...)
|
kzalloc(
- sizeof(TYPE) * (COUNT) * STRIDE
+ array3_size(COUNT, STRIDE, sizeof(TYPE))
, ...)
|
kzalloc(
- sizeof(TYPE) * COUNT * (STRIDE)
+ array3_size(COUNT, STRIDE, sizeof(TYPE))
, ...)
|
kzalloc(
- sizeof(TYPE) * COUNT * STRIDE
+ array3_size(COUNT, STRIDE, sizeof(TYPE))
, ...)
|
kzalloc(
- sizeof(THING) * (COUNT) * (STRIDE)
+ array3_size(COUNT, STRIDE, sizeof(THING))
, ...)
|
kzalloc(
- sizeof(THING) * (COUNT) * STRIDE
+ array3_size(COUNT, STRIDE, sizeof(THING))
, ...)
|
kzalloc(
- sizeof(THING) * COUNT * (STRIDE)
+ array3_size(COUNT, STRIDE, sizeof(THING))
, ...)
|
kzalloc(
- sizeof(THING) * COUNT * STRIDE
+ array3_size(COUNT, STRIDE, sizeof(THING))
, ...)
)
// 3-factor product with 2 sizeof(variable), with redundant parens removed.
@@
expression THING1, THING2;
identifier COUNT;
type TYPE1, TYPE2;
@@
(
kzalloc(
- sizeof(TYPE1) * sizeof(TYPE2) * COUNT
+ array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
, ...)
|
kzalloc(
- sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+ array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
, ...)
|
kzalloc(
- sizeof(THING1) * sizeof(THING2) * COUNT
+ array3_size(COUNT, sizeof(THING1), sizeof(THING2))
, ...)
|
kzalloc(
- sizeof(THING1) * sizeof(THING2) * (COUNT)
+ array3_size(COUNT, sizeof(THING1), sizeof(THING2))
, ...)
|
kzalloc(
- sizeof(TYPE1) * sizeof(THING2) * COUNT
+ array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
, ...)
|
kzalloc(
- sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+ array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
, ...)
)
// 3-factor product, only identifiers, with redundant parens removed.
@@
identifier STRIDE, SIZE, COUNT;
@@
(
kzalloc(
- (COUNT) * STRIDE * SIZE
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kzalloc(
- COUNT * (STRIDE) * SIZE
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kzalloc(
- COUNT * STRIDE * (SIZE)
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kzalloc(
- (COUNT) * (STRIDE) * SIZE
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kzalloc(
- COUNT * (STRIDE) * (SIZE)
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kzalloc(
- (COUNT) * STRIDE * (SIZE)
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kzalloc(
- (COUNT) * (STRIDE) * (SIZE)
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
kzalloc(
- COUNT * STRIDE * SIZE
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
)
// Any remaining multi-factor products, first at least 3-factor products,
// when they're not all constants...
@@
expression E1, E2, E3;
constant C1, C2, C3;
@@
(
kzalloc(C1 * C2 * C3, ...)
|
kzalloc(
- (E1) * E2 * E3
+ array3_size(E1, E2, E3)
, ...)
|
kzalloc(
- (E1) * (E2) * E3
+ array3_size(E1, E2, E3)
, ...)
|
kzalloc(
- (E1) * (E2) * (E3)
+ array3_size(E1, E2, E3)
, ...)
|
kzalloc(
- E1 * E2 * E3
+ array3_size(E1, E2, E3)
, ...)
)
// And then all remaining 2 factors products when they're not all constants,
// keeping sizeof() as the second factor argument.
@@
expression THING, E1, E2;
type TYPE;
constant C1, C2, C3;
@@
(
kzalloc(sizeof(THING) * C2, ...)
|
kzalloc(sizeof(TYPE) * C2, ...)
|
kzalloc(C1 * C2 * C3, ...)
|
kzalloc(C1 * C2, ...)
|
- kzalloc
+ kcalloc
(
- sizeof(TYPE) * (E2)
+ E2, sizeof(TYPE)
, ...)
|
- kzalloc
+ kcalloc
(
- sizeof(TYPE) * E2
+ E2, sizeof(TYPE)
, ...)
|
- kzalloc
+ kcalloc
(
- sizeof(THING) * (E2)
+ E2, sizeof(THING)
, ...)
|
- kzalloc
+ kcalloc
(
- sizeof(THING) * E2
+ E2, sizeof(THING)
, ...)
|
- kzalloc
+ kcalloc
(
- (E1) * E2
+ E1, E2
, ...)
|
- kzalloc
+ kcalloc
(
- (E1) * (E2)
+ E1, E2
, ...)
|
- kzalloc
+ kcalloc
(
- E1 * E2
+ E1, E2
, ...)
)
Signed-off-by: Kees Cook <keescook@chromium.org>
2018-06-13 04:03:40 +07:00
|
|
|
uep = kcalloc(pipe_size, sizeof(struct usbhsg_uep), GFP_KERNEL);
|
2011-04-05 09:40:54 +07:00
|
|
|
if (!uep) {
|
2011-06-28 20:33:47 +07:00
|
|
|
ret = -ENOMEM;
|
2011-04-05 09:40:54 +07:00
|
|
|
goto usbhs_mod_gadget_probe_err_gpriv;
|
|
|
|
}
|
|
|
|
|
2015-07-13 22:30:18 +07:00
|
|
|
gpriv->transceiver = usb_get_phy(USB_PHY_TYPE_UNDEFINED);
|
|
|
|
dev_info(dev, "%stransceiver found\n",
|
2016-08-13 08:28:24 +07:00
|
|
|
!IS_ERR(gpriv->transceiver) ? "" : "no ");
|
2015-07-13 22:30:18 +07:00
|
|
|
|
2011-04-05 09:40:54 +07:00
|
|
|
/*
|
|
|
|
* CAUTION
|
|
|
|
*
|
|
|
|
* There is no guarantee that it is possible to access usb module here.
|
|
|
|
* Don't accesses to it.
|
|
|
|
* The accesse will be enable after "usbhsg_start"
|
|
|
|
*/
|
|
|
|
|
|
|
|
/*
|
|
|
|
* register itself
|
|
|
|
*/
|
|
|
|
usbhs_mod_register(priv, &gpriv->mod, USBHS_GADGET);
|
|
|
|
|
|
|
|
/* init gpriv */
|
|
|
|
gpriv->mod.name = "gadget";
|
|
|
|
gpriv->mod.start = usbhsg_start;
|
|
|
|
gpriv->mod.stop = usbhsg_stop;
|
|
|
|
gpriv->uep = uep;
|
|
|
|
gpriv->uep_size = pipe_size;
|
|
|
|
usbhsg_status_init(gpriv);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* init gadget
|
|
|
|
*/
|
|
|
|
gpriv->gadget.dev.parent = dev;
|
|
|
|
gpriv->gadget.name = "renesas_usbhs_udc";
|
|
|
|
gpriv->gadget.ops = &usbhsg_gadget_ops;
|
2011-11-20 00:27:37 +07:00
|
|
|
gpriv->gadget.max_speed = USB_SPEED_HIGH;
|
2016-08-22 15:48:28 +07:00
|
|
|
gpriv->gadget.quirk_avoids_skb_reserve = usbhs_get_dparam(priv,
|
|
|
|
has_usb_dmac);
|
2011-04-05 09:40:54 +07:00
|
|
|
|
|
|
|
INIT_LIST_HEAD(&gpriv->gadget.ep_list);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* init usb_ep
|
|
|
|
*/
|
|
|
|
usbhsg_for_each_uep_with_dcp(uep, gpriv, i) {
|
|
|
|
uep->gpriv = gpriv;
|
2012-12-11 13:43:45 +07:00
|
|
|
uep->pipe = NULL;
|
2011-04-05 09:40:54 +07:00
|
|
|
snprintf(uep->ep_name, EP_NAME_SIZE, "ep%d", i);
|
|
|
|
|
|
|
|
uep->ep.name = uep->ep_name;
|
|
|
|
uep->ep.ops = &usbhsg_ep_ops;
|
|
|
|
INIT_LIST_HEAD(&uep->ep.ep_list);
|
2017-08-09 17:55:24 +07:00
|
|
|
spin_lock_init(&uep->lock);
|
2011-04-05 09:40:54 +07:00
|
|
|
|
|
|
|
/* init DCP */
|
|
|
|
if (usbhsg_is_dcp(uep)) {
|
|
|
|
gpriv->gadget.ep0 = &uep->ep;
|
2013-12-13 18:23:38 +07:00
|
|
|
usb_ep_set_maxpacket_limit(&uep->ep, 64);
|
2015-07-31 21:00:47 +07:00
|
|
|
uep->ep.caps.type_control = true;
|
2015-11-18 12:34:10 +07:00
|
|
|
} else {
|
|
|
|
/* init normal pipe */
|
|
|
|
if (pipe_configs[i].type == USB_ENDPOINT_XFER_ISOC)
|
|
|
|
uep->ep.caps.type_iso = true;
|
|
|
|
if (pipe_configs[i].type == USB_ENDPOINT_XFER_BULK)
|
|
|
|
uep->ep.caps.type_bulk = true;
|
|
|
|
if (pipe_configs[i].type == USB_ENDPOINT_XFER_INT)
|
|
|
|
uep->ep.caps.type_int = true;
|
|
|
|
usb_ep_set_maxpacket_limit(&uep->ep,
|
|
|
|
pipe_configs[i].bufsize);
|
2011-04-05 09:40:54 +07:00
|
|
|
list_add_tail(&uep->ep.ep_list, &gpriv->gadget.ep_list);
|
|
|
|
}
|
2015-07-31 21:00:47 +07:00
|
|
|
uep->ep.caps.dir_in = true;
|
|
|
|
uep->ep.caps.dir_out = true;
|
2011-04-05 09:40:54 +07:00
|
|
|
}
|
|
|
|
|
2011-06-28 20:33:47 +07:00
|
|
|
ret = usb_add_gadget_udc(dev, &gpriv->gadget);
|
|
|
|
if (ret)
|
2013-01-24 22:08:01 +07:00
|
|
|
goto err_add_udc;
|
2011-06-28 20:33:47 +07:00
|
|
|
|
|
|
|
|
2011-04-05 09:40:54 +07:00
|
|
|
dev_info(dev, "gadget probed\n");
|
|
|
|
|
|
|
|
return 0;
|
2011-11-18 09:19:06 +07:00
|
|
|
|
2011-06-28 20:33:47 +07:00
|
|
|
err_add_udc:
|
|
|
|
kfree(gpriv->uep);
|
2011-04-05 09:40:54 +07:00
|
|
|
|
|
|
|
usbhs_mod_gadget_probe_err_gpriv:
|
|
|
|
kfree(gpriv);
|
|
|
|
|
2011-06-28 20:33:47 +07:00
|
|
|
return ret;
|
2011-04-05 09:40:54 +07:00
|
|
|
}
|
|
|
|
|
2011-10-27 09:33:49 +07:00
|
|
|
void usbhs_mod_gadget_remove(struct usbhs_priv *priv)
|
2011-04-05 09:40:54 +07:00
|
|
|
{
|
|
|
|
struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv);
|
|
|
|
|
2011-06-28 20:33:47 +07:00
|
|
|
usb_del_gadget_udc(&gpriv->gadget);
|
2011-07-04 07:42:35 +07:00
|
|
|
|
2011-06-04 00:50:48 +07:00
|
|
|
kfree(gpriv->uep);
|
2011-04-05 09:40:54 +07:00
|
|
|
kfree(gpriv);
|
|
|
|
}
|