2009-08-18 21:59:39 -07:00
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/*
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* R8A66597 UDC (USB gadget)
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*
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* Copyright (C) 2006-2009 Renesas Solutions Corp.
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*
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* Author : Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#include <linux/module.h>
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#include <linux/interrupt.h>
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#include <linux/delay.h>
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#include <linux/io.h>
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#include <linux/platform_device.h>
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2009-08-19 02:50:49 -07:00
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#include <linux/clk.h>
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2010-01-18 05:03:18 -07:00
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#include <linux/err.h>
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include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.
percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.
http://userweb.kernel.org/~tj/misc/slabh-sweep.py
The script does the followings.
* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.
* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.
* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.
The conversion was done in the following steps.
1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.
2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.
3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.
4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.
5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.
6. percpu.h was updated not to include slab.h.
7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).
* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig
8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.
Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.
Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-24 01:04:11 -07:00
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#include <linux/slab.h>
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2009-08-18 21:59:39 -07:00
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#include <linux/usb/ch9.h>
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#include <linux/usb/gadget.h>
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#include "r8a66597-udc.h"
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#define DRIVER_VERSION "2009-08-18"
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static const char udc_name[] = "r8a66597_udc";
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static const char *r8a66597_ep_name[] = {
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"ep0", "ep1", "ep2", "ep3", "ep4", "ep5", "ep6", "ep7",
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"ep8", "ep9",
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};
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2010-10-19 17:28:08 -07:00
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static void init_controller(struct r8a66597 *r8a66597);
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2009-08-18 21:59:39 -07:00
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static void disable_controller(struct r8a66597 *r8a66597);
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static void irq_ep0_write(struct r8a66597_ep *ep, struct r8a66597_request *req);
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static void irq_packet_write(struct r8a66597_ep *ep,
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struct r8a66597_request *req);
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static int r8a66597_queue(struct usb_ep *_ep, struct usb_request *_req,
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gfp_t gfp_flags);
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static void transfer_complete(struct r8a66597_ep *ep,
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struct r8a66597_request *req, int status);
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/*-------------------------------------------------------------------------*/
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static inline u16 get_usb_speed(struct r8a66597 *r8a66597)
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{
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return r8a66597_read(r8a66597, DVSTCTR0) & RHST;
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}
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static void enable_pipe_irq(struct r8a66597 *r8a66597, u16 pipenum,
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unsigned long reg)
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{
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u16 tmp;
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tmp = r8a66597_read(r8a66597, INTENB0);
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r8a66597_bclr(r8a66597, BEMPE | NRDYE | BRDYE,
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INTENB0);
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r8a66597_bset(r8a66597, (1 << pipenum), reg);
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r8a66597_write(r8a66597, tmp, INTENB0);
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}
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static void disable_pipe_irq(struct r8a66597 *r8a66597, u16 pipenum,
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unsigned long reg)
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{
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u16 tmp;
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tmp = r8a66597_read(r8a66597, INTENB0);
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r8a66597_bclr(r8a66597, BEMPE | NRDYE | BRDYE,
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INTENB0);
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r8a66597_bclr(r8a66597, (1 << pipenum), reg);
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r8a66597_write(r8a66597, tmp, INTENB0);
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}
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static void r8a66597_usb_connect(struct r8a66597 *r8a66597)
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{
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r8a66597_bset(r8a66597, CTRE, INTENB0);
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r8a66597_bset(r8a66597, BEMPE | BRDYE, INTENB0);
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r8a66597_bset(r8a66597, DPRPU, SYSCFG0);
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}
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static void r8a66597_usb_disconnect(struct r8a66597 *r8a66597)
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__releases(r8a66597->lock)
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__acquires(r8a66597->lock)
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{
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r8a66597_bclr(r8a66597, CTRE, INTENB0);
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r8a66597_bclr(r8a66597, BEMPE | BRDYE, INTENB0);
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r8a66597_bclr(r8a66597, DPRPU, SYSCFG0);
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r8a66597->gadget.speed = USB_SPEED_UNKNOWN;
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spin_unlock(&r8a66597->lock);
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r8a66597->driver->disconnect(&r8a66597->gadget);
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spin_lock(&r8a66597->lock);
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disable_controller(r8a66597);
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2010-10-19 17:28:08 -07:00
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init_controller(r8a66597);
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r8a66597_bset(r8a66597, VBSE, INTENB0);
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2009-08-18 21:59:39 -07:00
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INIT_LIST_HEAD(&r8a66597->ep[0].queue);
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}
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static inline u16 control_reg_get_pid(struct r8a66597 *r8a66597, u16 pipenum)
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{
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u16 pid = 0;
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unsigned long offset;
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if (pipenum == 0)
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pid = r8a66597_read(r8a66597, DCPCTR) & PID;
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else if (pipenum < R8A66597_MAX_NUM_PIPE) {
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offset = get_pipectr_addr(pipenum);
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pid = r8a66597_read(r8a66597, offset) & PID;
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} else
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printk(KERN_ERR "unexpect pipe num (%d)\n", pipenum);
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return pid;
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}
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static inline void control_reg_set_pid(struct r8a66597 *r8a66597, u16 pipenum,
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u16 pid)
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{
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unsigned long offset;
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if (pipenum == 0)
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r8a66597_mdfy(r8a66597, pid, PID, DCPCTR);
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else if (pipenum < R8A66597_MAX_NUM_PIPE) {
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offset = get_pipectr_addr(pipenum);
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r8a66597_mdfy(r8a66597, pid, PID, offset);
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} else
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printk(KERN_ERR "unexpect pipe num (%d)\n", pipenum);
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}
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static inline void pipe_start(struct r8a66597 *r8a66597, u16 pipenum)
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{
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control_reg_set_pid(r8a66597, pipenum, PID_BUF);
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}
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static inline void pipe_stop(struct r8a66597 *r8a66597, u16 pipenum)
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{
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control_reg_set_pid(r8a66597, pipenum, PID_NAK);
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}
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static inline void pipe_stall(struct r8a66597 *r8a66597, u16 pipenum)
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{
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control_reg_set_pid(r8a66597, pipenum, PID_STALL);
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}
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static inline u16 control_reg_get(struct r8a66597 *r8a66597, u16 pipenum)
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{
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u16 ret = 0;
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unsigned long offset;
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if (pipenum == 0)
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ret = r8a66597_read(r8a66597, DCPCTR);
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else if (pipenum < R8A66597_MAX_NUM_PIPE) {
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offset = get_pipectr_addr(pipenum);
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ret = r8a66597_read(r8a66597, offset);
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} else
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printk(KERN_ERR "unexpect pipe num (%d)\n", pipenum);
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return ret;
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}
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static inline void control_reg_sqclr(struct r8a66597 *r8a66597, u16 pipenum)
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{
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unsigned long offset;
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pipe_stop(r8a66597, pipenum);
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if (pipenum == 0)
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r8a66597_bset(r8a66597, SQCLR, DCPCTR);
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else if (pipenum < R8A66597_MAX_NUM_PIPE) {
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offset = get_pipectr_addr(pipenum);
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r8a66597_bset(r8a66597, SQCLR, offset);
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} else
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printk(KERN_ERR "unexpect pipe num(%d)\n", pipenum);
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}
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static inline int get_buffer_size(struct r8a66597 *r8a66597, u16 pipenum)
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{
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u16 tmp;
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int size;
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if (pipenum == 0) {
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tmp = r8a66597_read(r8a66597, DCPCFG);
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if ((tmp & R8A66597_CNTMD) != 0)
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size = 256;
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else {
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tmp = r8a66597_read(r8a66597, DCPMAXP);
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size = tmp & MAXP;
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}
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} else {
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r8a66597_write(r8a66597, pipenum, PIPESEL);
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tmp = r8a66597_read(r8a66597, PIPECFG);
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if ((tmp & R8A66597_CNTMD) != 0) {
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tmp = r8a66597_read(r8a66597, PIPEBUF);
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size = ((tmp >> 10) + 1) * 64;
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} else {
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tmp = r8a66597_read(r8a66597, PIPEMAXP);
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size = tmp & MXPS;
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}
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}
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return size;
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}
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static inline unsigned short mbw_value(struct r8a66597 *r8a66597)
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{
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if (r8a66597->pdata->on_chip)
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return MBW_32;
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else
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return MBW_16;
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}
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static inline void pipe_change(struct r8a66597 *r8a66597, u16 pipenum)
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{
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struct r8a66597_ep *ep = r8a66597->pipenum2ep[pipenum];
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if (ep->use_dma)
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return;
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r8a66597_mdfy(r8a66597, pipenum, CURPIPE, ep->fifosel);
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ndelay(450);
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r8a66597_bset(r8a66597, mbw_value(r8a66597), ep->fifosel);
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}
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static int pipe_buffer_setting(struct r8a66597 *r8a66597,
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struct r8a66597_pipe_info *info)
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{
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u16 bufnum = 0, buf_bsize = 0;
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u16 pipecfg = 0;
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if (info->pipe == 0)
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return -EINVAL;
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r8a66597_write(r8a66597, info->pipe, PIPESEL);
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if (info->dir_in)
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pipecfg |= R8A66597_DIR;
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pipecfg |= info->type;
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pipecfg |= info->epnum;
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switch (info->type) {
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case R8A66597_INT:
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bufnum = 4 + (info->pipe - R8A66597_BASE_PIPENUM_INT);
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buf_bsize = 0;
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break;
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case R8A66597_BULK:
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2009-08-19 07:19:08 -07:00
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/* isochronous pipes may be used as bulk pipes */
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2011-01-30 23:49:34 -07:00
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if (info->pipe >= R8A66597_BASE_PIPENUM_BULK)
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2009-08-19 07:19:08 -07:00
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bufnum = info->pipe - R8A66597_BASE_PIPENUM_BULK;
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else
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bufnum = info->pipe - R8A66597_BASE_PIPENUM_ISOC;
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bufnum = R8A66597_BASE_BUFNUM + (bufnum * 16);
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2009-08-18 21:59:39 -07:00
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buf_bsize = 7;
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pipecfg |= R8A66597_DBLB;
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if (!info->dir_in)
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pipecfg |= R8A66597_SHTNAK;
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break;
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case R8A66597_ISO:
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2009-08-19 07:19:08 -07:00
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bufnum = R8A66597_BASE_BUFNUM +
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2009-08-18 21:59:39 -07:00
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(info->pipe - R8A66597_BASE_PIPENUM_ISOC) * 16;
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buf_bsize = 7;
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break;
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}
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2009-08-19 07:19:08 -07:00
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if (buf_bsize && ((bufnum + 16) >= R8A66597_MAX_BUFNUM)) {
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2010-09-11 22:10:58 -07:00
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pr_err("r8a66597 pipe memory is insufficient\n");
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2009-08-18 21:59:39 -07:00
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return -ENOMEM;
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}
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r8a66597_write(r8a66597, pipecfg, PIPECFG);
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|
r8a66597_write(r8a66597, (buf_bsize << 10) | (bufnum), PIPEBUF);
|
|
|
|
r8a66597_write(r8a66597, info->maxpacket, PIPEMAXP);
|
|
|
|
if (info->interval)
|
|
|
|
info->interval--;
|
|
|
|
r8a66597_write(r8a66597, info->interval, PIPEPERI);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void pipe_buffer_release(struct r8a66597 *r8a66597,
|
|
|
|
struct r8a66597_pipe_info *info)
|
|
|
|
{
|
|
|
|
if (info->pipe == 0)
|
|
|
|
return;
|
|
|
|
|
|
|
|
if (is_bulk_pipe(info->pipe))
|
|
|
|
r8a66597->bulk--;
|
|
|
|
else if (is_interrupt_pipe(info->pipe))
|
|
|
|
r8a66597->interrupt--;
|
|
|
|
else if (is_isoc_pipe(info->pipe)) {
|
|
|
|
r8a66597->isochronous--;
|
|
|
|
if (info->type == R8A66597_BULK)
|
|
|
|
r8a66597->bulk--;
|
|
|
|
} else
|
|
|
|
printk(KERN_ERR "ep_release: unexpect pipenum (%d)\n",
|
|
|
|
info->pipe);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void pipe_initialize(struct r8a66597_ep *ep)
|
|
|
|
{
|
|
|
|
struct r8a66597 *r8a66597 = ep->r8a66597;
|
|
|
|
|
|
|
|
r8a66597_mdfy(r8a66597, 0, CURPIPE, ep->fifosel);
|
|
|
|
|
|
|
|
r8a66597_write(r8a66597, ACLRM, ep->pipectr);
|
|
|
|
r8a66597_write(r8a66597, 0, ep->pipectr);
|
|
|
|
r8a66597_write(r8a66597, SQCLR, ep->pipectr);
|
|
|
|
if (ep->use_dma) {
|
|
|
|
r8a66597_mdfy(r8a66597, ep->pipenum, CURPIPE, ep->fifosel);
|
|
|
|
|
|
|
|
ndelay(450);
|
|
|
|
|
|
|
|
r8a66597_bset(r8a66597, mbw_value(r8a66597), ep->fifosel);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void r8a66597_ep_setting(struct r8a66597 *r8a66597,
|
|
|
|
struct r8a66597_ep *ep,
|
|
|
|
const struct usb_endpoint_descriptor *desc,
|
|
|
|
u16 pipenum, int dma)
|
|
|
|
{
|
|
|
|
ep->use_dma = 0;
|
|
|
|
ep->fifoaddr = CFIFO;
|
|
|
|
ep->fifosel = CFIFOSEL;
|
|
|
|
ep->fifoctr = CFIFOCTR;
|
|
|
|
ep->fifotrn = 0;
|
|
|
|
|
|
|
|
ep->pipectr = get_pipectr_addr(pipenum);
|
|
|
|
ep->pipenum = pipenum;
|
|
|
|
ep->ep.maxpacket = le16_to_cpu(desc->wMaxPacketSize);
|
|
|
|
r8a66597->pipenum2ep[pipenum] = ep;
|
|
|
|
r8a66597->epaddr2ep[desc->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK]
|
|
|
|
= ep;
|
|
|
|
INIT_LIST_HEAD(&ep->queue);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void r8a66597_ep_release(struct r8a66597_ep *ep)
|
|
|
|
{
|
|
|
|
struct r8a66597 *r8a66597 = ep->r8a66597;
|
|
|
|
u16 pipenum = ep->pipenum;
|
|
|
|
|
|
|
|
if (pipenum == 0)
|
|
|
|
return;
|
|
|
|
|
|
|
|
if (ep->use_dma)
|
|
|
|
r8a66597->num_dma--;
|
|
|
|
ep->pipenum = 0;
|
|
|
|
ep->busy = 0;
|
|
|
|
ep->use_dma = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int alloc_pipe_config(struct r8a66597_ep *ep,
|
|
|
|
const struct usb_endpoint_descriptor *desc)
|
|
|
|
{
|
|
|
|
struct r8a66597 *r8a66597 = ep->r8a66597;
|
|
|
|
struct r8a66597_pipe_info info;
|
|
|
|
int dma = 0;
|
|
|
|
unsigned char *counter;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
ep->desc = desc;
|
|
|
|
|
|
|
|
if (ep->pipenum) /* already allocated pipe */
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
switch (desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) {
|
|
|
|
case USB_ENDPOINT_XFER_BULK:
|
|
|
|
if (r8a66597->bulk >= R8A66597_MAX_NUM_BULK) {
|
|
|
|
if (r8a66597->isochronous >= R8A66597_MAX_NUM_ISOC) {
|
|
|
|
printk(KERN_ERR "bulk pipe is insufficient\n");
|
|
|
|
return -ENODEV;
|
|
|
|
} else {
|
|
|
|
info.pipe = R8A66597_BASE_PIPENUM_ISOC
|
|
|
|
+ r8a66597->isochronous;
|
|
|
|
counter = &r8a66597->isochronous;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
info.pipe = R8A66597_BASE_PIPENUM_BULK + r8a66597->bulk;
|
|
|
|
counter = &r8a66597->bulk;
|
|
|
|
}
|
|
|
|
info.type = R8A66597_BULK;
|
|
|
|
dma = 1;
|
|
|
|
break;
|
|
|
|
case USB_ENDPOINT_XFER_INT:
|
|
|
|
if (r8a66597->interrupt >= R8A66597_MAX_NUM_INT) {
|
|
|
|
printk(KERN_ERR "interrupt pipe is insufficient\n");
|
|
|
|
return -ENODEV;
|
|
|
|
}
|
|
|
|
info.pipe = R8A66597_BASE_PIPENUM_INT + r8a66597->interrupt;
|
|
|
|
info.type = R8A66597_INT;
|
|
|
|
counter = &r8a66597->interrupt;
|
|
|
|
break;
|
|
|
|
case USB_ENDPOINT_XFER_ISOC:
|
|
|
|
if (r8a66597->isochronous >= R8A66597_MAX_NUM_ISOC) {
|
|
|
|
printk(KERN_ERR "isochronous pipe is insufficient\n");
|
|
|
|
return -ENODEV;
|
|
|
|
}
|
|
|
|
info.pipe = R8A66597_BASE_PIPENUM_ISOC + r8a66597->isochronous;
|
|
|
|
info.type = R8A66597_ISO;
|
|
|
|
counter = &r8a66597->isochronous;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
printk(KERN_ERR "unexpect xfer type\n");
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
ep->type = info.type;
|
|
|
|
|
|
|
|
info.epnum = desc->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
|
|
|
|
info.maxpacket = le16_to_cpu(desc->wMaxPacketSize);
|
|
|
|
info.interval = desc->bInterval;
|
|
|
|
if (desc->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
|
|
|
|
info.dir_in = 1;
|
|
|
|
else
|
|
|
|
info.dir_in = 0;
|
|
|
|
|
|
|
|
ret = pipe_buffer_setting(r8a66597, &info);
|
|
|
|
if (ret < 0) {
|
|
|
|
printk(KERN_ERR "pipe_buffer_setting fail\n");
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
(*counter)++;
|
|
|
|
if ((counter == &r8a66597->isochronous) && info.type == R8A66597_BULK)
|
|
|
|
r8a66597->bulk++;
|
|
|
|
|
|
|
|
r8a66597_ep_setting(r8a66597, ep, desc, info.pipe, dma);
|
|
|
|
pipe_initialize(ep);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int free_pipe_config(struct r8a66597_ep *ep)
|
|
|
|
{
|
|
|
|
struct r8a66597 *r8a66597 = ep->r8a66597;
|
|
|
|
struct r8a66597_pipe_info info;
|
|
|
|
|
|
|
|
info.pipe = ep->pipenum;
|
|
|
|
info.type = ep->type;
|
|
|
|
pipe_buffer_release(r8a66597, &info);
|
|
|
|
r8a66597_ep_release(ep);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
static void pipe_irq_enable(struct r8a66597 *r8a66597, u16 pipenum)
|
|
|
|
{
|
|
|
|
enable_irq_ready(r8a66597, pipenum);
|
|
|
|
enable_irq_nrdy(r8a66597, pipenum);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void pipe_irq_disable(struct r8a66597 *r8a66597, u16 pipenum)
|
|
|
|
{
|
|
|
|
disable_irq_ready(r8a66597, pipenum);
|
|
|
|
disable_irq_nrdy(r8a66597, pipenum);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* if complete is true, gadget driver complete function is not call */
|
|
|
|
static void control_end(struct r8a66597 *r8a66597, unsigned ccpl)
|
|
|
|
{
|
|
|
|
r8a66597->ep[0].internal_ccpl = ccpl;
|
|
|
|
pipe_start(r8a66597, 0);
|
|
|
|
r8a66597_bset(r8a66597, CCPL, DCPCTR);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void start_ep0_write(struct r8a66597_ep *ep,
|
|
|
|
struct r8a66597_request *req)
|
|
|
|
{
|
|
|
|
struct r8a66597 *r8a66597 = ep->r8a66597;
|
|
|
|
|
|
|
|
pipe_change(r8a66597, ep->pipenum);
|
|
|
|
r8a66597_mdfy(r8a66597, ISEL, (ISEL | CURPIPE), CFIFOSEL);
|
|
|
|
r8a66597_write(r8a66597, BCLR, ep->fifoctr);
|
|
|
|
if (req->req.length == 0) {
|
|
|
|
r8a66597_bset(r8a66597, BVAL, ep->fifoctr);
|
|
|
|
pipe_start(r8a66597, 0);
|
|
|
|
transfer_complete(ep, req, 0);
|
|
|
|
} else {
|
|
|
|
r8a66597_write(r8a66597, ~BEMP0, BEMPSTS);
|
|
|
|
irq_ep0_write(ep, req);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void start_packet_write(struct r8a66597_ep *ep,
|
|
|
|
struct r8a66597_request *req)
|
|
|
|
{
|
|
|
|
struct r8a66597 *r8a66597 = ep->r8a66597;
|
|
|
|
u16 tmp;
|
|
|
|
|
|
|
|
pipe_change(r8a66597, ep->pipenum);
|
|
|
|
disable_irq_empty(r8a66597, ep->pipenum);
|
|
|
|
pipe_start(r8a66597, ep->pipenum);
|
|
|
|
|
|
|
|
tmp = r8a66597_read(r8a66597, ep->fifoctr);
|
|
|
|
if (unlikely((tmp & FRDY) == 0))
|
|
|
|
pipe_irq_enable(r8a66597, ep->pipenum);
|
|
|
|
else
|
|
|
|
irq_packet_write(ep, req);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void start_packet_read(struct r8a66597_ep *ep,
|
|
|
|
struct r8a66597_request *req)
|
|
|
|
{
|
|
|
|
struct r8a66597 *r8a66597 = ep->r8a66597;
|
|
|
|
u16 pipenum = ep->pipenum;
|
|
|
|
|
|
|
|
if (ep->pipenum == 0) {
|
|
|
|
r8a66597_mdfy(r8a66597, 0, (ISEL | CURPIPE), CFIFOSEL);
|
|
|
|
r8a66597_write(r8a66597, BCLR, ep->fifoctr);
|
|
|
|
pipe_start(r8a66597, pipenum);
|
|
|
|
pipe_irq_enable(r8a66597, pipenum);
|
|
|
|
} else {
|
|
|
|
if (ep->use_dma) {
|
|
|
|
r8a66597_bset(r8a66597, TRCLR, ep->fifosel);
|
|
|
|
pipe_change(r8a66597, pipenum);
|
|
|
|
r8a66597_bset(r8a66597, TRENB, ep->fifosel);
|
|
|
|
r8a66597_write(r8a66597,
|
|
|
|
(req->req.length + ep->ep.maxpacket - 1)
|
|
|
|
/ ep->ep.maxpacket,
|
|
|
|
ep->fifotrn);
|
|
|
|
}
|
|
|
|
pipe_start(r8a66597, pipenum); /* trigger once */
|
|
|
|
pipe_irq_enable(r8a66597, pipenum);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void start_packet(struct r8a66597_ep *ep, struct r8a66597_request *req)
|
|
|
|
{
|
|
|
|
if (ep->desc->bEndpointAddress & USB_DIR_IN)
|
|
|
|
start_packet_write(ep, req);
|
|
|
|
else
|
|
|
|
start_packet_read(ep, req);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void start_ep0(struct r8a66597_ep *ep, struct r8a66597_request *req)
|
|
|
|
{
|
|
|
|
u16 ctsq;
|
|
|
|
|
|
|
|
ctsq = r8a66597_read(ep->r8a66597, INTSTS0) & CTSQ;
|
|
|
|
|
|
|
|
switch (ctsq) {
|
|
|
|
case CS_RDDS:
|
|
|
|
start_ep0_write(ep, req);
|
|
|
|
break;
|
|
|
|
case CS_WRDS:
|
|
|
|
start_packet_read(ep, req);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CS_WRND:
|
|
|
|
control_end(ep->r8a66597, 0);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
printk(KERN_ERR "start_ep0: unexpect ctsq(%x)\n", ctsq);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void init_controller(struct r8a66597 *r8a66597)
|
|
|
|
{
|
|
|
|
u16 vif = r8a66597->pdata->vif ? LDRV : 0;
|
|
|
|
u16 irq_sense = r8a66597->irq_sense_low ? INTL : 0;
|
|
|
|
u16 endian = r8a66597->pdata->endian ? BIGEND : 0;
|
|
|
|
|
|
|
|
if (r8a66597->pdata->on_chip) {
|
|
|
|
r8a66597_bset(r8a66597, 0x04, SYSCFG1);
|
|
|
|
r8a66597_bset(r8a66597, HSE, SYSCFG0);
|
|
|
|
|
|
|
|
r8a66597_bclr(r8a66597, USBE, SYSCFG0);
|
|
|
|
r8a66597_bclr(r8a66597, DPRPU, SYSCFG0);
|
|
|
|
r8a66597_bset(r8a66597, USBE, SYSCFG0);
|
|
|
|
|
|
|
|
r8a66597_bset(r8a66597, SCKE, SYSCFG0);
|
|
|
|
|
|
|
|
r8a66597_bset(r8a66597, irq_sense, INTENB1);
|
|
|
|
r8a66597_write(r8a66597, BURST | CPU_ADR_RD_WR,
|
|
|
|
DMA0CFG);
|
|
|
|
} else {
|
|
|
|
r8a66597_bset(r8a66597, vif | endian, PINCFG);
|
|
|
|
r8a66597_bset(r8a66597, HSE, SYSCFG0); /* High spd */
|
|
|
|
r8a66597_mdfy(r8a66597, get_xtal_from_pdata(r8a66597->pdata),
|
|
|
|
XTAL, SYSCFG0);
|
|
|
|
|
|
|
|
r8a66597_bclr(r8a66597, USBE, SYSCFG0);
|
|
|
|
r8a66597_bclr(r8a66597, DPRPU, SYSCFG0);
|
|
|
|
r8a66597_bset(r8a66597, USBE, SYSCFG0);
|
|
|
|
|
|
|
|
r8a66597_bset(r8a66597, XCKE, SYSCFG0);
|
|
|
|
|
|
|
|
msleep(3);
|
|
|
|
|
|
|
|
r8a66597_bset(r8a66597, PLLC, SYSCFG0);
|
|
|
|
|
|
|
|
msleep(1);
|
|
|
|
|
|
|
|
r8a66597_bset(r8a66597, SCKE, SYSCFG0);
|
|
|
|
|
|
|
|
r8a66597_bset(r8a66597, irq_sense, INTENB1);
|
|
|
|
r8a66597_write(r8a66597, BURST | CPU_ADR_RD_WR,
|
|
|
|
DMA0CFG);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void disable_controller(struct r8a66597 *r8a66597)
|
|
|
|
{
|
|
|
|
if (r8a66597->pdata->on_chip) {
|
|
|
|
r8a66597_bset(r8a66597, SCKE, SYSCFG0);
|
|
|
|
|
2009-08-19 07:26:10 -07:00
|
|
|
/* disable interrupts */
|
2009-08-18 21:59:39 -07:00
|
|
|
r8a66597_write(r8a66597, 0, INTENB0);
|
|
|
|
r8a66597_write(r8a66597, 0, INTENB1);
|
2009-08-19 07:26:10 -07:00
|
|
|
r8a66597_write(r8a66597, 0, BRDYENB);
|
|
|
|
r8a66597_write(r8a66597, 0, BEMPENB);
|
|
|
|
r8a66597_write(r8a66597, 0, NRDYENB);
|
|
|
|
|
|
|
|
/* clear status */
|
|
|
|
r8a66597_write(r8a66597, 0, BRDYSTS);
|
|
|
|
r8a66597_write(r8a66597, 0, NRDYSTS);
|
|
|
|
r8a66597_write(r8a66597, 0, BEMPSTS);
|
2009-08-18 21:59:39 -07:00
|
|
|
|
|
|
|
r8a66597_bclr(r8a66597, USBE, SYSCFG0);
|
|
|
|
r8a66597_bclr(r8a66597, SCKE, SYSCFG0);
|
|
|
|
|
|
|
|
} else {
|
|
|
|
r8a66597_bclr(r8a66597, SCKE, SYSCFG0);
|
|
|
|
udelay(1);
|
|
|
|
r8a66597_bclr(r8a66597, PLLC, SYSCFG0);
|
|
|
|
udelay(1);
|
|
|
|
udelay(1);
|
|
|
|
r8a66597_bclr(r8a66597, XCKE, SYSCFG0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void r8a66597_start_xclock(struct r8a66597 *r8a66597)
|
|
|
|
{
|
|
|
|
u16 tmp;
|
|
|
|
|
|
|
|
if (!r8a66597->pdata->on_chip) {
|
|
|
|
tmp = r8a66597_read(r8a66597, SYSCFG0);
|
|
|
|
if (!(tmp & XCKE))
|
|
|
|
r8a66597_bset(r8a66597, XCKE, SYSCFG0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct r8a66597_request *get_request_from_ep(struct r8a66597_ep *ep)
|
|
|
|
{
|
|
|
|
return list_entry(ep->queue.next, struct r8a66597_request, queue);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
static void transfer_complete(struct r8a66597_ep *ep,
|
|
|
|
struct r8a66597_request *req, int status)
|
|
|
|
__releases(r8a66597->lock)
|
|
|
|
__acquires(r8a66597->lock)
|
|
|
|
{
|
|
|
|
int restart = 0;
|
|
|
|
|
|
|
|
if (unlikely(ep->pipenum == 0)) {
|
|
|
|
if (ep->internal_ccpl) {
|
|
|
|
ep->internal_ccpl = 0;
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
list_del_init(&req->queue);
|
|
|
|
if (ep->r8a66597->gadget.speed == USB_SPEED_UNKNOWN)
|
|
|
|
req->req.status = -ESHUTDOWN;
|
|
|
|
else
|
|
|
|
req->req.status = status;
|
|
|
|
|
|
|
|
if (!list_empty(&ep->queue))
|
|
|
|
restart = 1;
|
|
|
|
|
|
|
|
spin_unlock(&ep->r8a66597->lock);
|
|
|
|
req->req.complete(&ep->ep, &req->req);
|
|
|
|
spin_lock(&ep->r8a66597->lock);
|
|
|
|
|
|
|
|
if (restart) {
|
|
|
|
req = get_request_from_ep(ep);
|
|
|
|
if (ep->desc)
|
|
|
|
start_packet(ep, req);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void irq_ep0_write(struct r8a66597_ep *ep, struct r8a66597_request *req)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
u16 tmp;
|
|
|
|
unsigned bufsize;
|
|
|
|
size_t size;
|
|
|
|
void *buf;
|
|
|
|
u16 pipenum = ep->pipenum;
|
|
|
|
struct r8a66597 *r8a66597 = ep->r8a66597;
|
|
|
|
|
|
|
|
pipe_change(r8a66597, pipenum);
|
|
|
|
r8a66597_bset(r8a66597, ISEL, ep->fifosel);
|
|
|
|
|
|
|
|
i = 0;
|
|
|
|
do {
|
|
|
|
tmp = r8a66597_read(r8a66597, ep->fifoctr);
|
|
|
|
if (i++ > 100000) {
|
|
|
|
printk(KERN_ERR "pipe0 is busy. maybe cpu i/o bus"
|
|
|
|
"conflict. please power off this controller.");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
ndelay(1);
|
|
|
|
} while ((tmp & FRDY) == 0);
|
|
|
|
|
|
|
|
/* prepare parameters */
|
|
|
|
bufsize = get_buffer_size(r8a66597, pipenum);
|
|
|
|
buf = req->req.buf + req->req.actual;
|
|
|
|
size = min(bufsize, req->req.length - req->req.actual);
|
|
|
|
|
|
|
|
/* write fifo */
|
|
|
|
if (req->req.buf) {
|
|
|
|
if (size > 0)
|
|
|
|
r8a66597_write_fifo(r8a66597, ep->fifoaddr, buf, size);
|
|
|
|
if ((size == 0) || ((size % ep->ep.maxpacket) != 0))
|
|
|
|
r8a66597_bset(r8a66597, BVAL, ep->fifoctr);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* update parameters */
|
|
|
|
req->req.actual += size;
|
|
|
|
|
|
|
|
/* check transfer finish */
|
|
|
|
if ((!req->req.zero && (req->req.actual == req->req.length))
|
|
|
|
|| (size % ep->ep.maxpacket)
|
|
|
|
|| (size == 0)) {
|
|
|
|
disable_irq_ready(r8a66597, pipenum);
|
|
|
|
disable_irq_empty(r8a66597, pipenum);
|
|
|
|
} else {
|
|
|
|
disable_irq_ready(r8a66597, pipenum);
|
|
|
|
enable_irq_empty(r8a66597, pipenum);
|
|
|
|
}
|
|
|
|
pipe_start(r8a66597, pipenum);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void irq_packet_write(struct r8a66597_ep *ep,
|
|
|
|
struct r8a66597_request *req)
|
|
|
|
{
|
|
|
|
u16 tmp;
|
|
|
|
unsigned bufsize;
|
|
|
|
size_t size;
|
|
|
|
void *buf;
|
|
|
|
u16 pipenum = ep->pipenum;
|
|
|
|
struct r8a66597 *r8a66597 = ep->r8a66597;
|
|
|
|
|
|
|
|
pipe_change(r8a66597, pipenum);
|
|
|
|
tmp = r8a66597_read(r8a66597, ep->fifoctr);
|
|
|
|
if (unlikely((tmp & FRDY) == 0)) {
|
|
|
|
pipe_stop(r8a66597, pipenum);
|
|
|
|
pipe_irq_disable(r8a66597, pipenum);
|
|
|
|
printk(KERN_ERR "write fifo not ready. pipnum=%d\n", pipenum);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* prepare parameters */
|
|
|
|
bufsize = get_buffer_size(r8a66597, pipenum);
|
|
|
|
buf = req->req.buf + req->req.actual;
|
|
|
|
size = min(bufsize, req->req.length - req->req.actual);
|
|
|
|
|
|
|
|
/* write fifo */
|
|
|
|
if (req->req.buf) {
|
|
|
|
r8a66597_write_fifo(r8a66597, ep->fifoaddr, buf, size);
|
|
|
|
if ((size == 0)
|
|
|
|
|| ((size % ep->ep.maxpacket) != 0)
|
|
|
|
|| ((bufsize != ep->ep.maxpacket)
|
|
|
|
&& (bufsize > size)))
|
|
|
|
r8a66597_bset(r8a66597, BVAL, ep->fifoctr);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* update parameters */
|
|
|
|
req->req.actual += size;
|
|
|
|
/* check transfer finish */
|
|
|
|
if ((!req->req.zero && (req->req.actual == req->req.length))
|
|
|
|
|| (size % ep->ep.maxpacket)
|
|
|
|
|| (size == 0)) {
|
|
|
|
disable_irq_ready(r8a66597, pipenum);
|
|
|
|
enable_irq_empty(r8a66597, pipenum);
|
|
|
|
} else {
|
|
|
|
disable_irq_empty(r8a66597, pipenum);
|
|
|
|
pipe_irq_enable(r8a66597, pipenum);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void irq_packet_read(struct r8a66597_ep *ep,
|
|
|
|
struct r8a66597_request *req)
|
|
|
|
{
|
|
|
|
u16 tmp;
|
|
|
|
int rcv_len, bufsize, req_len;
|
|
|
|
int size;
|
|
|
|
void *buf;
|
|
|
|
u16 pipenum = ep->pipenum;
|
|
|
|
struct r8a66597 *r8a66597 = ep->r8a66597;
|
|
|
|
int finish = 0;
|
|
|
|
|
|
|
|
pipe_change(r8a66597, pipenum);
|
|
|
|
tmp = r8a66597_read(r8a66597, ep->fifoctr);
|
|
|
|
if (unlikely((tmp & FRDY) == 0)) {
|
|
|
|
req->req.status = -EPIPE;
|
|
|
|
pipe_stop(r8a66597, pipenum);
|
|
|
|
pipe_irq_disable(r8a66597, pipenum);
|
|
|
|
printk(KERN_ERR "read fifo not ready");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* prepare parameters */
|
|
|
|
rcv_len = tmp & DTLN;
|
|
|
|
bufsize = get_buffer_size(r8a66597, pipenum);
|
|
|
|
|
|
|
|
buf = req->req.buf + req->req.actual;
|
|
|
|
req_len = req->req.length - req->req.actual;
|
|
|
|
if (rcv_len < bufsize)
|
|
|
|
size = min(rcv_len, req_len);
|
|
|
|
else
|
|
|
|
size = min(bufsize, req_len);
|
|
|
|
|
|
|
|
/* update parameters */
|
|
|
|
req->req.actual += size;
|
|
|
|
|
|
|
|
/* check transfer finish */
|
|
|
|
if ((!req->req.zero && (req->req.actual == req->req.length))
|
|
|
|
|| (size % ep->ep.maxpacket)
|
|
|
|
|| (size == 0)) {
|
|
|
|
pipe_stop(r8a66597, pipenum);
|
|
|
|
pipe_irq_disable(r8a66597, pipenum);
|
|
|
|
finish = 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* read fifo */
|
|
|
|
if (req->req.buf) {
|
|
|
|
if (size == 0)
|
|
|
|
r8a66597_write(r8a66597, BCLR, ep->fifoctr);
|
|
|
|
else
|
|
|
|
r8a66597_read_fifo(r8a66597, ep->fifoaddr, buf, size);
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((ep->pipenum != 0) && finish)
|
|
|
|
transfer_complete(ep, req, 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void irq_pipe_ready(struct r8a66597 *r8a66597, u16 status, u16 enb)
|
|
|
|
{
|
|
|
|
u16 check;
|
|
|
|
u16 pipenum;
|
|
|
|
struct r8a66597_ep *ep;
|
|
|
|
struct r8a66597_request *req;
|
|
|
|
|
|
|
|
if ((status & BRDY0) && (enb & BRDY0)) {
|
|
|
|
r8a66597_write(r8a66597, ~BRDY0, BRDYSTS);
|
|
|
|
r8a66597_mdfy(r8a66597, 0, CURPIPE, CFIFOSEL);
|
|
|
|
|
|
|
|
ep = &r8a66597->ep[0];
|
|
|
|
req = get_request_from_ep(ep);
|
|
|
|
irq_packet_read(ep, req);
|
|
|
|
} else {
|
|
|
|
for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
|
|
|
|
check = 1 << pipenum;
|
|
|
|
if ((status & check) && (enb & check)) {
|
|
|
|
r8a66597_write(r8a66597, ~check, BRDYSTS);
|
|
|
|
ep = r8a66597->pipenum2ep[pipenum];
|
|
|
|
req = get_request_from_ep(ep);
|
|
|
|
if (ep->desc->bEndpointAddress & USB_DIR_IN)
|
|
|
|
irq_packet_write(ep, req);
|
|
|
|
else
|
|
|
|
irq_packet_read(ep, req);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void irq_pipe_empty(struct r8a66597 *r8a66597, u16 status, u16 enb)
|
|
|
|
{
|
|
|
|
u16 tmp;
|
|
|
|
u16 check;
|
|
|
|
u16 pipenum;
|
|
|
|
struct r8a66597_ep *ep;
|
|
|
|
struct r8a66597_request *req;
|
|
|
|
|
|
|
|
if ((status & BEMP0) && (enb & BEMP0)) {
|
|
|
|
r8a66597_write(r8a66597, ~BEMP0, BEMPSTS);
|
|
|
|
|
|
|
|
ep = &r8a66597->ep[0];
|
|
|
|
req = get_request_from_ep(ep);
|
|
|
|
irq_ep0_write(ep, req);
|
|
|
|
} else {
|
|
|
|
for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
|
|
|
|
check = 1 << pipenum;
|
|
|
|
if ((status & check) && (enb & check)) {
|
|
|
|
r8a66597_write(r8a66597, ~check, BEMPSTS);
|
|
|
|
tmp = control_reg_get(r8a66597, pipenum);
|
|
|
|
if ((tmp & INBUFM) == 0) {
|
|
|
|
disable_irq_empty(r8a66597, pipenum);
|
|
|
|
pipe_irq_disable(r8a66597, pipenum);
|
|
|
|
pipe_stop(r8a66597, pipenum);
|
|
|
|
ep = r8a66597->pipenum2ep[pipenum];
|
|
|
|
req = get_request_from_ep(ep);
|
|
|
|
if (!list_empty(&ep->queue))
|
|
|
|
transfer_complete(ep, req, 0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void get_status(struct r8a66597 *r8a66597, struct usb_ctrlrequest *ctrl)
|
|
|
|
__releases(r8a66597->lock)
|
|
|
|
__acquires(r8a66597->lock)
|
|
|
|
{
|
|
|
|
struct r8a66597_ep *ep;
|
|
|
|
u16 pid;
|
|
|
|
u16 status = 0;
|
|
|
|
u16 w_index = le16_to_cpu(ctrl->wIndex);
|
|
|
|
|
|
|
|
switch (ctrl->bRequestType & USB_RECIP_MASK) {
|
|
|
|
case USB_RECIP_DEVICE:
|
|
|
|
status = 1 << USB_DEVICE_SELF_POWERED;
|
|
|
|
break;
|
|
|
|
case USB_RECIP_INTERFACE:
|
|
|
|
status = 0;
|
|
|
|
break;
|
|
|
|
case USB_RECIP_ENDPOINT:
|
|
|
|
ep = r8a66597->epaddr2ep[w_index & USB_ENDPOINT_NUMBER_MASK];
|
|
|
|
pid = control_reg_get_pid(r8a66597, ep->pipenum);
|
|
|
|
if (pid == PID_STALL)
|
|
|
|
status = 1 << USB_ENDPOINT_HALT;
|
|
|
|
else
|
|
|
|
status = 0;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
pipe_stall(r8a66597, 0);
|
|
|
|
return; /* exit */
|
|
|
|
}
|
|
|
|
|
|
|
|
r8a66597->ep0_data = cpu_to_le16(status);
|
|
|
|
r8a66597->ep0_req->buf = &r8a66597->ep0_data;
|
|
|
|
r8a66597->ep0_req->length = 2;
|
|
|
|
/* AV: what happens if we get called again before that gets through? */
|
|
|
|
spin_unlock(&r8a66597->lock);
|
|
|
|
r8a66597_queue(r8a66597->gadget.ep0, r8a66597->ep0_req, GFP_KERNEL);
|
|
|
|
spin_lock(&r8a66597->lock);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void clear_feature(struct r8a66597 *r8a66597,
|
|
|
|
struct usb_ctrlrequest *ctrl)
|
|
|
|
{
|
|
|
|
switch (ctrl->bRequestType & USB_RECIP_MASK) {
|
|
|
|
case USB_RECIP_DEVICE:
|
|
|
|
control_end(r8a66597, 1);
|
|
|
|
break;
|
|
|
|
case USB_RECIP_INTERFACE:
|
|
|
|
control_end(r8a66597, 1);
|
|
|
|
break;
|
|
|
|
case USB_RECIP_ENDPOINT: {
|
|
|
|
struct r8a66597_ep *ep;
|
|
|
|
struct r8a66597_request *req;
|
|
|
|
u16 w_index = le16_to_cpu(ctrl->wIndex);
|
|
|
|
|
|
|
|
ep = r8a66597->epaddr2ep[w_index & USB_ENDPOINT_NUMBER_MASK];
|
2009-08-20 00:01:06 -07:00
|
|
|
if (!ep->wedge) {
|
|
|
|
pipe_stop(r8a66597, ep->pipenum);
|
|
|
|
control_reg_sqclr(r8a66597, ep->pipenum);
|
|
|
|
spin_unlock(&r8a66597->lock);
|
|
|
|
usb_ep_clear_halt(&ep->ep);
|
|
|
|
spin_lock(&r8a66597->lock);
|
|
|
|
}
|
2009-08-18 21:59:39 -07:00
|
|
|
|
|
|
|
control_end(r8a66597, 1);
|
|
|
|
|
|
|
|
req = get_request_from_ep(ep);
|
|
|
|
if (ep->busy) {
|
|
|
|
ep->busy = 0;
|
|
|
|
if (list_empty(&ep->queue))
|
|
|
|
break;
|
|
|
|
start_packet(ep, req);
|
|
|
|
} else if (!list_empty(&ep->queue))
|
|
|
|
pipe_start(r8a66597, ep->pipenum);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
pipe_stall(r8a66597, 0);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void set_feature(struct r8a66597 *r8a66597, struct usb_ctrlrequest *ctrl)
|
|
|
|
{
|
|
|
|
|
|
|
|
switch (ctrl->bRequestType & USB_RECIP_MASK) {
|
|
|
|
case USB_RECIP_DEVICE:
|
|
|
|
control_end(r8a66597, 1);
|
|
|
|
break;
|
|
|
|
case USB_RECIP_INTERFACE:
|
|
|
|
control_end(r8a66597, 1);
|
|
|
|
break;
|
|
|
|
case USB_RECIP_ENDPOINT: {
|
|
|
|
struct r8a66597_ep *ep;
|
|
|
|
u16 w_index = le16_to_cpu(ctrl->wIndex);
|
|
|
|
|
|
|
|
ep = r8a66597->epaddr2ep[w_index & USB_ENDPOINT_NUMBER_MASK];
|
|
|
|
pipe_stall(r8a66597, ep->pipenum);
|
|
|
|
|
|
|
|
control_end(r8a66597, 1);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
pipe_stall(r8a66597, 0);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* if return value is true, call class driver's setup() */
|
|
|
|
static int setup_packet(struct r8a66597 *r8a66597, struct usb_ctrlrequest *ctrl)
|
|
|
|
{
|
|
|
|
u16 *p = (u16 *)ctrl;
|
|
|
|
unsigned long offset = USBREQ;
|
|
|
|
int i, ret = 0;
|
|
|
|
|
|
|
|
/* read fifo */
|
|
|
|
r8a66597_write(r8a66597, ~VALID, INTSTS0);
|
|
|
|
|
|
|
|
for (i = 0; i < 4; i++)
|
|
|
|
p[i] = r8a66597_read(r8a66597, offset + i*2);
|
|
|
|
|
|
|
|
/* check request */
|
|
|
|
if ((ctrl->bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD) {
|
|
|
|
switch (ctrl->bRequest) {
|
|
|
|
case USB_REQ_GET_STATUS:
|
|
|
|
get_status(r8a66597, ctrl);
|
|
|
|
break;
|
|
|
|
case USB_REQ_CLEAR_FEATURE:
|
|
|
|
clear_feature(r8a66597, ctrl);
|
|
|
|
break;
|
|
|
|
case USB_REQ_SET_FEATURE:
|
|
|
|
set_feature(r8a66597, ctrl);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
ret = 1;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
} else
|
|
|
|
ret = 1;
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void r8a66597_update_usb_speed(struct r8a66597 *r8a66597)
|
|
|
|
{
|
|
|
|
u16 speed = get_usb_speed(r8a66597);
|
|
|
|
|
|
|
|
switch (speed) {
|
|
|
|
case HSMODE:
|
|
|
|
r8a66597->gadget.speed = USB_SPEED_HIGH;
|
|
|
|
break;
|
|
|
|
case FSMODE:
|
|
|
|
r8a66597->gadget.speed = USB_SPEED_FULL;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
r8a66597->gadget.speed = USB_SPEED_UNKNOWN;
|
|
|
|
printk(KERN_ERR "USB speed unknown\n");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void irq_device_state(struct r8a66597 *r8a66597)
|
|
|
|
{
|
|
|
|
u16 dvsq;
|
|
|
|
|
|
|
|
dvsq = r8a66597_read(r8a66597, INTSTS0) & DVSQ;
|
|
|
|
r8a66597_write(r8a66597, ~DVST, INTSTS0);
|
|
|
|
|
|
|
|
if (dvsq == DS_DFLT) {
|
|
|
|
/* bus reset */
|
|
|
|
r8a66597->driver->disconnect(&r8a66597->gadget);
|
|
|
|
r8a66597_update_usb_speed(r8a66597);
|
|
|
|
}
|
|
|
|
if (r8a66597->old_dvsq == DS_CNFG && dvsq != DS_CNFG)
|
|
|
|
r8a66597_update_usb_speed(r8a66597);
|
|
|
|
if ((dvsq == DS_CNFG || dvsq == DS_ADDS)
|
|
|
|
&& r8a66597->gadget.speed == USB_SPEED_UNKNOWN)
|
|
|
|
r8a66597_update_usb_speed(r8a66597);
|
|
|
|
|
|
|
|
r8a66597->old_dvsq = dvsq;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void irq_control_stage(struct r8a66597 *r8a66597)
|
|
|
|
__releases(r8a66597->lock)
|
|
|
|
__acquires(r8a66597->lock)
|
|
|
|
{
|
|
|
|
struct usb_ctrlrequest ctrl;
|
|
|
|
u16 ctsq;
|
|
|
|
|
|
|
|
ctsq = r8a66597_read(r8a66597, INTSTS0) & CTSQ;
|
|
|
|
r8a66597_write(r8a66597, ~CTRT, INTSTS0);
|
|
|
|
|
|
|
|
switch (ctsq) {
|
|
|
|
case CS_IDST: {
|
|
|
|
struct r8a66597_ep *ep;
|
|
|
|
struct r8a66597_request *req;
|
|
|
|
ep = &r8a66597->ep[0];
|
|
|
|
req = get_request_from_ep(ep);
|
|
|
|
transfer_complete(ep, req, 0);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CS_RDDS:
|
|
|
|
case CS_WRDS:
|
|
|
|
case CS_WRND:
|
|
|
|
if (setup_packet(r8a66597, &ctrl)) {
|
|
|
|
spin_unlock(&r8a66597->lock);
|
|
|
|
if (r8a66597->driver->setup(&r8a66597->gadget, &ctrl)
|
|
|
|
< 0)
|
|
|
|
pipe_stall(r8a66597, 0);
|
|
|
|
spin_lock(&r8a66597->lock);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case CS_RDSS:
|
|
|
|
case CS_WRSS:
|
|
|
|
control_end(r8a66597, 0);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
printk(KERN_ERR "ctrl_stage: unexpect ctsq(%x)\n", ctsq);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static irqreturn_t r8a66597_irq(int irq, void *_r8a66597)
|
|
|
|
{
|
|
|
|
struct r8a66597 *r8a66597 = _r8a66597;
|
|
|
|
u16 intsts0;
|
|
|
|
u16 intenb0;
|
|
|
|
u16 brdysts, nrdysts, bempsts;
|
|
|
|
u16 brdyenb, nrdyenb, bempenb;
|
|
|
|
u16 savepipe;
|
|
|
|
u16 mask0;
|
|
|
|
|
|
|
|
spin_lock(&r8a66597->lock);
|
|
|
|
|
|
|
|
intsts0 = r8a66597_read(r8a66597, INTSTS0);
|
|
|
|
intenb0 = r8a66597_read(r8a66597, INTENB0);
|
|
|
|
|
|
|
|
savepipe = r8a66597_read(r8a66597, CFIFOSEL);
|
|
|
|
|
|
|
|
mask0 = intsts0 & intenb0;
|
|
|
|
if (mask0) {
|
|
|
|
brdysts = r8a66597_read(r8a66597, BRDYSTS);
|
|
|
|
nrdysts = r8a66597_read(r8a66597, NRDYSTS);
|
|
|
|
bempsts = r8a66597_read(r8a66597, BEMPSTS);
|
|
|
|
brdyenb = r8a66597_read(r8a66597, BRDYENB);
|
|
|
|
nrdyenb = r8a66597_read(r8a66597, NRDYENB);
|
|
|
|
bempenb = r8a66597_read(r8a66597, BEMPENB);
|
|
|
|
|
|
|
|
if (mask0 & VBINT) {
|
|
|
|
r8a66597_write(r8a66597, 0xffff & ~VBINT,
|
|
|
|
INTSTS0);
|
|
|
|
r8a66597_start_xclock(r8a66597);
|
|
|
|
|
|
|
|
/* start vbus sampling */
|
|
|
|
r8a66597->old_vbus = r8a66597_read(r8a66597, INTSTS0)
|
|
|
|
& VBSTS;
|
|
|
|
r8a66597->scount = R8A66597_MAX_SAMPLING;
|
|
|
|
|
|
|
|
mod_timer(&r8a66597->timer,
|
|
|
|
jiffies + msecs_to_jiffies(50));
|
|
|
|
}
|
|
|
|
if (intsts0 & DVSQ)
|
|
|
|
irq_device_state(r8a66597);
|
|
|
|
|
|
|
|
if ((intsts0 & BRDY) && (intenb0 & BRDYE)
|
|
|
|
&& (brdysts & brdyenb))
|
|
|
|
irq_pipe_ready(r8a66597, brdysts, brdyenb);
|
|
|
|
if ((intsts0 & BEMP) && (intenb0 & BEMPE)
|
|
|
|
&& (bempsts & bempenb))
|
|
|
|
irq_pipe_empty(r8a66597, bempsts, bempenb);
|
|
|
|
|
|
|
|
if (intsts0 & CTRT)
|
|
|
|
irq_control_stage(r8a66597);
|
|
|
|
}
|
|
|
|
|
|
|
|
r8a66597_write(r8a66597, savepipe, CFIFOSEL);
|
|
|
|
|
|
|
|
spin_unlock(&r8a66597->lock);
|
|
|
|
return IRQ_HANDLED;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void r8a66597_timer(unsigned long _r8a66597)
|
|
|
|
{
|
|
|
|
struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597;
|
|
|
|
unsigned long flags;
|
|
|
|
u16 tmp;
|
|
|
|
|
|
|
|
spin_lock_irqsave(&r8a66597->lock, flags);
|
|
|
|
tmp = r8a66597_read(r8a66597, SYSCFG0);
|
|
|
|
if (r8a66597->scount > 0) {
|
|
|
|
tmp = r8a66597_read(r8a66597, INTSTS0) & VBSTS;
|
|
|
|
if (tmp == r8a66597->old_vbus) {
|
|
|
|
r8a66597->scount--;
|
|
|
|
if (r8a66597->scount == 0) {
|
|
|
|
if (tmp == VBSTS)
|
|
|
|
r8a66597_usb_connect(r8a66597);
|
|
|
|
else
|
|
|
|
r8a66597_usb_disconnect(r8a66597);
|
|
|
|
} else {
|
|
|
|
mod_timer(&r8a66597->timer,
|
|
|
|
jiffies + msecs_to_jiffies(50));
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
r8a66597->scount = R8A66597_MAX_SAMPLING;
|
|
|
|
r8a66597->old_vbus = tmp;
|
|
|
|
mod_timer(&r8a66597->timer,
|
|
|
|
jiffies + msecs_to_jiffies(50));
|
|
|
|
}
|
|
|
|
}
|
|
|
|
spin_unlock_irqrestore(&r8a66597->lock, flags);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
static int r8a66597_enable(struct usb_ep *_ep,
|
|
|
|
const struct usb_endpoint_descriptor *desc)
|
|
|
|
{
|
|
|
|
struct r8a66597_ep *ep;
|
|
|
|
|
|
|
|
ep = container_of(_ep, struct r8a66597_ep, ep);
|
|
|
|
return alloc_pipe_config(ep, desc);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int r8a66597_disable(struct usb_ep *_ep)
|
|
|
|
{
|
|
|
|
struct r8a66597_ep *ep;
|
|
|
|
struct r8a66597_request *req;
|
|
|
|
unsigned long flags;
|
|
|
|
|
|
|
|
ep = container_of(_ep, struct r8a66597_ep, ep);
|
|
|
|
BUG_ON(!ep);
|
|
|
|
|
|
|
|
while (!list_empty(&ep->queue)) {
|
|
|
|
req = get_request_from_ep(ep);
|
|
|
|
spin_lock_irqsave(&ep->r8a66597->lock, flags);
|
|
|
|
transfer_complete(ep, req, -ECONNRESET);
|
|
|
|
spin_unlock_irqrestore(&ep->r8a66597->lock, flags);
|
|
|
|
}
|
|
|
|
|
|
|
|
pipe_irq_disable(ep->r8a66597, ep->pipenum);
|
|
|
|
return free_pipe_config(ep);
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct usb_request *r8a66597_alloc_request(struct usb_ep *_ep,
|
|
|
|
gfp_t gfp_flags)
|
|
|
|
{
|
|
|
|
struct r8a66597_request *req;
|
|
|
|
|
|
|
|
req = kzalloc(sizeof(struct r8a66597_request), gfp_flags);
|
|
|
|
if (!req)
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
INIT_LIST_HEAD(&req->queue);
|
|
|
|
|
|
|
|
return &req->req;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void r8a66597_free_request(struct usb_ep *_ep, struct usb_request *_req)
|
|
|
|
{
|
|
|
|
struct r8a66597_request *req;
|
|
|
|
|
|
|
|
req = container_of(_req, struct r8a66597_request, req);
|
|
|
|
kfree(req);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int r8a66597_queue(struct usb_ep *_ep, struct usb_request *_req,
|
|
|
|
gfp_t gfp_flags)
|
|
|
|
{
|
|
|
|
struct r8a66597_ep *ep;
|
|
|
|
struct r8a66597_request *req;
|
|
|
|
unsigned long flags;
|
|
|
|
int request = 0;
|
|
|
|
|
|
|
|
ep = container_of(_ep, struct r8a66597_ep, ep);
|
|
|
|
req = container_of(_req, struct r8a66597_request, req);
|
|
|
|
|
|
|
|
if (ep->r8a66597->gadget.speed == USB_SPEED_UNKNOWN)
|
|
|
|
return -ESHUTDOWN;
|
|
|
|
|
|
|
|
spin_lock_irqsave(&ep->r8a66597->lock, flags);
|
|
|
|
|
|
|
|
if (list_empty(&ep->queue))
|
|
|
|
request = 1;
|
|
|
|
|
|
|
|
list_add_tail(&req->queue, &ep->queue);
|
|
|
|
req->req.actual = 0;
|
|
|
|
req->req.status = -EINPROGRESS;
|
|
|
|
|
|
|
|
if (ep->desc == NULL) /* control */
|
|
|
|
start_ep0(ep, req);
|
|
|
|
else {
|
|
|
|
if (request && !ep->busy)
|
|
|
|
start_packet(ep, req);
|
|
|
|
}
|
|
|
|
|
|
|
|
spin_unlock_irqrestore(&ep->r8a66597->lock, flags);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int r8a66597_dequeue(struct usb_ep *_ep, struct usb_request *_req)
|
|
|
|
{
|
|
|
|
struct r8a66597_ep *ep;
|
|
|
|
struct r8a66597_request *req;
|
|
|
|
unsigned long flags;
|
|
|
|
|
|
|
|
ep = container_of(_ep, struct r8a66597_ep, ep);
|
|
|
|
req = container_of(_req, struct r8a66597_request, req);
|
|
|
|
|
|
|
|
spin_lock_irqsave(&ep->r8a66597->lock, flags);
|
|
|
|
if (!list_empty(&ep->queue))
|
|
|
|
transfer_complete(ep, req, -ECONNRESET);
|
|
|
|
spin_unlock_irqrestore(&ep->r8a66597->lock, flags);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int r8a66597_set_halt(struct usb_ep *_ep, int value)
|
|
|
|
{
|
|
|
|
struct r8a66597_ep *ep;
|
|
|
|
struct r8a66597_request *req;
|
|
|
|
unsigned long flags;
|
|
|
|
int ret = 0;
|
|
|
|
|
|
|
|
ep = container_of(_ep, struct r8a66597_ep, ep);
|
|
|
|
req = get_request_from_ep(ep);
|
|
|
|
|
|
|
|
spin_lock_irqsave(&ep->r8a66597->lock, flags);
|
|
|
|
if (!list_empty(&ep->queue)) {
|
|
|
|
ret = -EAGAIN;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
if (value) {
|
|
|
|
ep->busy = 1;
|
|
|
|
pipe_stall(ep->r8a66597, ep->pipenum);
|
|
|
|
} else {
|
|
|
|
ep->busy = 0;
|
2009-08-20 00:01:06 -07:00
|
|
|
ep->wedge = 0;
|
2009-08-18 21:59:39 -07:00
|
|
|
pipe_stop(ep->r8a66597, ep->pipenum);
|
|
|
|
}
|
|
|
|
|
|
|
|
out:
|
|
|
|
spin_unlock_irqrestore(&ep->r8a66597->lock, flags);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2009-08-20 00:01:06 -07:00
|
|
|
static int r8a66597_set_wedge(struct usb_ep *_ep)
|
|
|
|
{
|
|
|
|
struct r8a66597_ep *ep;
|
|
|
|
unsigned long flags;
|
|
|
|
|
|
|
|
ep = container_of(_ep, struct r8a66597_ep, ep);
|
|
|
|
|
|
|
|
if (!ep || !ep->desc)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
spin_lock_irqsave(&ep->r8a66597->lock, flags);
|
|
|
|
ep->wedge = 1;
|
|
|
|
spin_unlock_irqrestore(&ep->r8a66597->lock, flags);
|
|
|
|
|
|
|
|
return usb_ep_set_halt(_ep);
|
|
|
|
}
|
|
|
|
|
2009-08-18 21:59:39 -07:00
|
|
|
static void r8a66597_fifo_flush(struct usb_ep *_ep)
|
|
|
|
{
|
|
|
|
struct r8a66597_ep *ep;
|
|
|
|
unsigned long flags;
|
|
|
|
|
|
|
|
ep = container_of(_ep, struct r8a66597_ep, ep);
|
|
|
|
spin_lock_irqsave(&ep->r8a66597->lock, flags);
|
|
|
|
if (list_empty(&ep->queue) && !ep->busy) {
|
|
|
|
pipe_stop(ep->r8a66597, ep->pipenum);
|
|
|
|
r8a66597_bclr(ep->r8a66597, BCLR, ep->fifoctr);
|
|
|
|
}
|
|
|
|
spin_unlock_irqrestore(&ep->r8a66597->lock, flags);
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct usb_ep_ops r8a66597_ep_ops = {
|
|
|
|
.enable = r8a66597_enable,
|
|
|
|
.disable = r8a66597_disable,
|
|
|
|
|
|
|
|
.alloc_request = r8a66597_alloc_request,
|
|
|
|
.free_request = r8a66597_free_request,
|
|
|
|
|
|
|
|
.queue = r8a66597_queue,
|
|
|
|
.dequeue = r8a66597_dequeue,
|
|
|
|
|
|
|
|
.set_halt = r8a66597_set_halt,
|
2009-08-20 00:01:06 -07:00
|
|
|
.set_wedge = r8a66597_set_wedge,
|
2009-08-18 21:59:39 -07:00
|
|
|
.fifo_flush = r8a66597_fifo_flush,
|
|
|
|
};
|
|
|
|
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
static struct r8a66597 *the_controller;
|
|
|
|
|
2010-08-12 08:43:53 -07:00
|
|
|
int usb_gadget_probe_driver(struct usb_gadget_driver *driver,
|
|
|
|
int (*bind)(struct usb_gadget *))
|
2009-08-18 21:59:39 -07:00
|
|
|
{
|
|
|
|
struct r8a66597 *r8a66597 = the_controller;
|
|
|
|
int retval;
|
|
|
|
|
|
|
|
if (!driver
|
|
|
|
|| driver->speed != USB_SPEED_HIGH
|
2010-08-12 08:43:53 -07:00
|
|
|
|| !bind
|
2009-08-18 21:59:39 -07:00
|
|
|
|| !driver->setup)
|
|
|
|
return -EINVAL;
|
|
|
|
if (!r8a66597)
|
|
|
|
return -ENODEV;
|
|
|
|
if (r8a66597->driver)
|
|
|
|
return -EBUSY;
|
|
|
|
|
|
|
|
/* hook up the driver */
|
|
|
|
driver->driver.bus = NULL;
|
|
|
|
r8a66597->driver = driver;
|
|
|
|
r8a66597->gadget.dev.driver = &driver->driver;
|
|
|
|
|
|
|
|
retval = device_add(&r8a66597->gadget.dev);
|
|
|
|
if (retval) {
|
|
|
|
printk(KERN_ERR "device_add error (%d)\n", retval);
|
|
|
|
goto error;
|
|
|
|
}
|
|
|
|
|
2010-08-12 08:43:53 -07:00
|
|
|
retval = bind(&r8a66597->gadget);
|
2009-08-18 21:59:39 -07:00
|
|
|
if (retval) {
|
|
|
|
printk(KERN_ERR "bind to driver error (%d)\n", retval);
|
|
|
|
device_del(&r8a66597->gadget.dev);
|
|
|
|
goto error;
|
|
|
|
}
|
|
|
|
|
|
|
|
r8a66597_bset(r8a66597, VBSE, INTENB0);
|
|
|
|
if (r8a66597_read(r8a66597, INTSTS0) & VBSTS) {
|
|
|
|
r8a66597_start_xclock(r8a66597);
|
|
|
|
/* start vbus sampling */
|
|
|
|
r8a66597->old_vbus = r8a66597_read(r8a66597,
|
|
|
|
INTSTS0) & VBSTS;
|
|
|
|
r8a66597->scount = R8A66597_MAX_SAMPLING;
|
|
|
|
mod_timer(&r8a66597->timer, jiffies + msecs_to_jiffies(50));
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
error:
|
|
|
|
r8a66597->driver = NULL;
|
|
|
|
r8a66597->gadget.dev.driver = NULL;
|
|
|
|
|
|
|
|
return retval;
|
|
|
|
}
|
2010-08-12 08:43:53 -07:00
|
|
|
EXPORT_SYMBOL(usb_gadget_probe_driver);
|
2009-08-18 21:59:39 -07:00
|
|
|
|
|
|
|
int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
|
|
|
|
{
|
|
|
|
struct r8a66597 *r8a66597 = the_controller;
|
|
|
|
unsigned long flags;
|
|
|
|
|
|
|
|
if (driver != r8a66597->driver || !driver->unbind)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
spin_lock_irqsave(&r8a66597->lock, flags);
|
|
|
|
if (r8a66597->gadget.speed != USB_SPEED_UNKNOWN)
|
|
|
|
r8a66597_usb_disconnect(r8a66597);
|
|
|
|
spin_unlock_irqrestore(&r8a66597->lock, flags);
|
|
|
|
|
|
|
|
r8a66597_bclr(r8a66597, VBSE, INTENB0);
|
|
|
|
|
|
|
|
driver->unbind(&r8a66597->gadget);
|
|
|
|
|
|
|
|
init_controller(r8a66597);
|
|
|
|
disable_controller(r8a66597);
|
|
|
|
|
|
|
|
device_del(&r8a66597->gadget.dev);
|
|
|
|
r8a66597->driver = NULL;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(usb_gadget_unregister_driver);
|
|
|
|
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
static int r8a66597_get_frame(struct usb_gadget *_gadget)
|
|
|
|
{
|
|
|
|
struct r8a66597 *r8a66597 = gadget_to_r8a66597(_gadget);
|
|
|
|
return r8a66597_read(r8a66597, FRMNUM) & 0x03FF;
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct usb_gadget_ops r8a66597_gadget_ops = {
|
|
|
|
.get_frame = r8a66597_get_frame,
|
|
|
|
};
|
|
|
|
|
|
|
|
static int __exit r8a66597_remove(struct platform_device *pdev)
|
|
|
|
{
|
|
|
|
struct r8a66597 *r8a66597 = dev_get_drvdata(&pdev->dev);
|
|
|
|
|
|
|
|
del_timer_sync(&r8a66597->timer);
|
2010-06-02 00:27:12 -07:00
|
|
|
iounmap(r8a66597->reg);
|
2009-08-18 21:59:39 -07:00
|
|
|
free_irq(platform_get_irq(pdev, 0), r8a66597);
|
|
|
|
r8a66597_free_request(&r8a66597->ep[0].ep, r8a66597->ep0_req);
|
2009-08-19 02:50:49 -07:00
|
|
|
#ifdef CONFIG_HAVE_CLK
|
|
|
|
if (r8a66597->pdata->on_chip) {
|
|
|
|
clk_disable(r8a66597->clk);
|
|
|
|
clk_put(r8a66597->clk);
|
|
|
|
}
|
|
|
|
#endif
|
2009-08-18 21:59:39 -07:00
|
|
|
kfree(r8a66597);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void nop_completion(struct usb_ep *ep, struct usb_request *r)
|
|
|
|
{
|
|
|
|
}
|
|
|
|
|
|
|
|
static int __init r8a66597_probe(struct platform_device *pdev)
|
|
|
|
{
|
2009-08-19 02:50:49 -07:00
|
|
|
#ifdef CONFIG_HAVE_CLK
|
|
|
|
char clk_name[8];
|
|
|
|
#endif
|
2009-08-18 21:59:39 -07:00
|
|
|
struct resource *res, *ires;
|
|
|
|
int irq;
|
|
|
|
void __iomem *reg = NULL;
|
|
|
|
struct r8a66597 *r8a66597 = NULL;
|
|
|
|
int ret = 0;
|
|
|
|
int i;
|
|
|
|
unsigned long irq_trigger;
|
|
|
|
|
|
|
|
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
|
|
|
if (!res) {
|
|
|
|
ret = -ENODEV;
|
|
|
|
printk(KERN_ERR "platform_get_resource error.\n");
|
|
|
|
goto clean_up;
|
|
|
|
}
|
|
|
|
|
|
|
|
ires = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
|
|
|
|
irq = ires->start;
|
|
|
|
irq_trigger = ires->flags & IRQF_TRIGGER_MASK;
|
|
|
|
|
|
|
|
if (irq < 0) {
|
|
|
|
ret = -ENODEV;
|
|
|
|
printk(KERN_ERR "platform_get_irq error.\n");
|
|
|
|
goto clean_up;
|
|
|
|
}
|
|
|
|
|
|
|
|
reg = ioremap(res->start, resource_size(res));
|
|
|
|
if (reg == NULL) {
|
|
|
|
ret = -ENOMEM;
|
|
|
|
printk(KERN_ERR "ioremap error.\n");
|
|
|
|
goto clean_up;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* initialize ucd */
|
|
|
|
r8a66597 = kzalloc(sizeof(struct r8a66597), GFP_KERNEL);
|
|
|
|
if (r8a66597 == NULL) {
|
2010-08-16 18:41:29 -07:00
|
|
|
ret = -ENOMEM;
|
2009-08-18 21:59:39 -07:00
|
|
|
printk(KERN_ERR "kzalloc error\n");
|
|
|
|
goto clean_up;
|
|
|
|
}
|
|
|
|
|
|
|
|
spin_lock_init(&r8a66597->lock);
|
|
|
|
dev_set_drvdata(&pdev->dev, r8a66597);
|
|
|
|
r8a66597->pdata = pdev->dev.platform_data;
|
|
|
|
r8a66597->irq_sense_low = irq_trigger == IRQF_TRIGGER_LOW;
|
|
|
|
|
|
|
|
r8a66597->gadget.ops = &r8a66597_gadget_ops;
|
|
|
|
device_initialize(&r8a66597->gadget.dev);
|
|
|
|
dev_set_name(&r8a66597->gadget.dev, "gadget");
|
|
|
|
r8a66597->gadget.is_dualspeed = 1;
|
|
|
|
r8a66597->gadget.dev.parent = &pdev->dev;
|
|
|
|
r8a66597->gadget.dev.dma_mask = pdev->dev.dma_mask;
|
|
|
|
r8a66597->gadget.dev.release = pdev->dev.release;
|
|
|
|
r8a66597->gadget.name = udc_name;
|
|
|
|
|
|
|
|
init_timer(&r8a66597->timer);
|
|
|
|
r8a66597->timer.function = r8a66597_timer;
|
|
|
|
r8a66597->timer.data = (unsigned long)r8a66597;
|
2010-06-02 00:27:12 -07:00
|
|
|
r8a66597->reg = reg;
|
2009-08-18 21:59:39 -07:00
|
|
|
|
2009-08-19 02:50:49 -07:00
|
|
|
#ifdef CONFIG_HAVE_CLK
|
|
|
|
if (r8a66597->pdata->on_chip) {
|
|
|
|
snprintf(clk_name, sizeof(clk_name), "usb%d", pdev->id);
|
|
|
|
r8a66597->clk = clk_get(&pdev->dev, clk_name);
|
|
|
|
if (IS_ERR(r8a66597->clk)) {
|
|
|
|
dev_err(&pdev->dev, "cannot get clock \"%s\"\n",
|
|
|
|
clk_name);
|
|
|
|
ret = PTR_ERR(r8a66597->clk);
|
|
|
|
goto clean_up;
|
|
|
|
}
|
|
|
|
clk_enable(r8a66597->clk);
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
2009-08-18 21:59:39 -07:00
|
|
|
disable_controller(r8a66597); /* make sure controller is disabled */
|
|
|
|
|
|
|
|
ret = request_irq(irq, r8a66597_irq, IRQF_DISABLED | IRQF_SHARED,
|
|
|
|
udc_name, r8a66597);
|
|
|
|
if (ret < 0) {
|
|
|
|
printk(KERN_ERR "request_irq error (%d)\n", ret);
|
2009-08-19 02:50:49 -07:00
|
|
|
goto clean_up2;
|
2009-08-18 21:59:39 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
INIT_LIST_HEAD(&r8a66597->gadget.ep_list);
|
|
|
|
r8a66597->gadget.ep0 = &r8a66597->ep[0].ep;
|
|
|
|
INIT_LIST_HEAD(&r8a66597->gadget.ep0->ep_list);
|
|
|
|
for (i = 0; i < R8A66597_MAX_NUM_PIPE; i++) {
|
|
|
|
struct r8a66597_ep *ep = &r8a66597->ep[i];
|
|
|
|
|
|
|
|
if (i != 0) {
|
|
|
|
INIT_LIST_HEAD(&r8a66597->ep[i].ep.ep_list);
|
|
|
|
list_add_tail(&r8a66597->ep[i].ep.ep_list,
|
|
|
|
&r8a66597->gadget.ep_list);
|
|
|
|
}
|
|
|
|
ep->r8a66597 = r8a66597;
|
|
|
|
INIT_LIST_HEAD(&ep->queue);
|
|
|
|
ep->ep.name = r8a66597_ep_name[i];
|
|
|
|
ep->ep.ops = &r8a66597_ep_ops;
|
|
|
|
ep->ep.maxpacket = 512;
|
|
|
|
}
|
|
|
|
r8a66597->ep[0].ep.maxpacket = 64;
|
|
|
|
r8a66597->ep[0].pipenum = 0;
|
|
|
|
r8a66597->ep[0].fifoaddr = CFIFO;
|
|
|
|
r8a66597->ep[0].fifosel = CFIFOSEL;
|
|
|
|
r8a66597->ep[0].fifoctr = CFIFOCTR;
|
|
|
|
r8a66597->ep[0].fifotrn = 0;
|
|
|
|
r8a66597->ep[0].pipectr = get_pipectr_addr(0);
|
|
|
|
r8a66597->pipenum2ep[0] = &r8a66597->ep[0];
|
|
|
|
r8a66597->epaddr2ep[0] = &r8a66597->ep[0];
|
|
|
|
|
|
|
|
the_controller = r8a66597;
|
|
|
|
|
|
|
|
r8a66597->ep0_req = r8a66597_alloc_request(&r8a66597->ep[0].ep,
|
|
|
|
GFP_KERNEL);
|
|
|
|
if (r8a66597->ep0_req == NULL)
|
2009-08-19 02:50:49 -07:00
|
|
|
goto clean_up3;
|
2009-08-18 21:59:39 -07:00
|
|
|
r8a66597->ep0_req->complete = nop_completion;
|
|
|
|
|
|
|
|
init_controller(r8a66597);
|
|
|
|
|
|
|
|
dev_info(&pdev->dev, "version %s\n", DRIVER_VERSION);
|
|
|
|
return 0;
|
|
|
|
|
2009-08-19 02:50:49 -07:00
|
|
|
clean_up3:
|
2009-08-18 21:59:39 -07:00
|
|
|
free_irq(irq, r8a66597);
|
2009-08-19 02:50:49 -07:00
|
|
|
clean_up2:
|
|
|
|
#ifdef CONFIG_HAVE_CLK
|
|
|
|
if (r8a66597->pdata->on_chip) {
|
|
|
|
clk_disable(r8a66597->clk);
|
|
|
|
clk_put(r8a66597->clk);
|
|
|
|
}
|
|
|
|
#endif
|
2009-08-18 21:59:39 -07:00
|
|
|
clean_up:
|
|
|
|
if (r8a66597) {
|
|
|
|
if (r8a66597->ep0_req)
|
|
|
|
r8a66597_free_request(&r8a66597->ep[0].ep,
|
|
|
|
r8a66597->ep0_req);
|
|
|
|
kfree(r8a66597);
|
|
|
|
}
|
|
|
|
if (reg)
|
|
|
|
iounmap(reg);
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
static struct platform_driver r8a66597_driver = {
|
|
|
|
.remove = __exit_p(r8a66597_remove),
|
|
|
|
.driver = {
|
|
|
|
.name = (char *) udc_name,
|
|
|
|
},
|
|
|
|
};
|
|
|
|
|
|
|
|
static int __init r8a66597_udc_init(void)
|
|
|
|
{
|
|
|
|
return platform_driver_probe(&r8a66597_driver, r8a66597_probe);
|
|
|
|
}
|
|
|
|
module_init(r8a66597_udc_init);
|
|
|
|
|
|
|
|
static void __exit r8a66597_udc_cleanup(void)
|
|
|
|
{
|
|
|
|
platform_driver_unregister(&r8a66597_driver);
|
|
|
|
}
|
|
|
|
module_exit(r8a66597_udc_cleanup);
|
|
|
|
|
|
|
|
MODULE_DESCRIPTION("R8A66597 USB gadget driver");
|
|
|
|
MODULE_LICENSE("GPL");
|
|
|
|
MODULE_AUTHOR("Yoshihiro Shimoda");
|
|
|
|
|