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NetBSD/sys/dev/usb/pseye.c

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/* $NetBSD: pseye.c,v 1.10 2008/10/15 06:51:20 wrstuden Exp $ */
/*-
* Copyright (c) 2008 Jared D. McNeill <jmcneill@invisible.ca>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Sony PLAYSTATION(R) Eye Driver
*
* The only documentation we have for this part is based on a series
* of forum postings by Jim Paris on ps2dev.org. Many thanks for
* figuring this one out.
*
* URL: http://forums.ps2dev.org/viewtopic.php?t=9238
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: pseye.c,v 1.10 2008/10/15 06:51:20 wrstuden Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/malloc.h>
#include <sys/fcntl.h>
#include <sys/conf.h>
#include <sys/poll.h>
#include <sys/bus.h>
#include <sys/mutex.h>
#include <sys/kthread.h>
#include <sys/condvar.h>
#include <uvm/uvm_extern.h>
#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdi_util.h>
#include <dev/usb/usbdevs.h>
#include <dev/video_if.h>
#define PRI_PSEYE PRI_BIO
/* Bulk-in buffer length */
#define PSEYE_BULKIN_BUFLEN (640 * 480 * 2)
/* SCCB/sensor interface */
#define PSEYE_SCCB_ADDRESS 0xf1
#define PSEYE_SCCB_SUBADDR 0xf2
#define PSEYE_SCCB_WRITE 0xf3
#define PSEYE_SCCB_READ 0xf4
#define PSEYE_SCCB_OPERATION 0xf5
#define PSEYE_SCCB_STATUS 0xf6
#define PSEYE_SCCB_OP_WRITE_3 0x37
#define PSEYE_SCCB_OP_WRITE_2 0x33
#define PSEYE_SCCB_OP_READ_2 0xf9
struct pseye_softc {
USBBASEDEVICE sc_dev;
usbd_device_handle sc_udev;
usbd_interface_handle sc_iface;
device_t sc_videodev;
char sc_running;
kcondvar_t sc_cv;
kmutex_t sc_mtx;
usbd_pipe_handle sc_bulkin_pipe;
usbd_xfer_handle sc_bulkin_xfer;
int sc_bulkin;
uint8_t *sc_bulkin_buffer;
int sc_bulkin_bufferlen;
char sc_dying;
};
static int pseye_match(device_t, cfdata_t, void *);
static void pseye_attach(device_t, device_t, void *);
static int pseye_detach(device_t, int);
static void pseye_childdet(device_t, device_t);
static int pseye_activate(device_t, enum devact);
static void pseye_init(struct pseye_softc *);
static void pseye_sccb_init(struct pseye_softc *);
static void pseye_stop(struct pseye_softc *);
static void pseye_start(struct pseye_softc *);
static void pseye_led(struct pseye_softc *, bool);
static uint8_t pseye_getreg(struct pseye_softc *, uint16_t);
static void pseye_setreg(struct pseye_softc *, uint16_t, uint8_t);
static void pseye_setregv(struct pseye_softc *, uint16_t, uint8_t);
static void pseye_sccb_setreg(struct pseye_softc *, uint8_t, uint8_t);
static bool pseye_sccb_status(struct pseye_softc *);
static int pseye_init_pipes(struct pseye_softc *);
static int pseye_close_pipes(struct pseye_softc *);
static usbd_status pseye_get_frame(struct pseye_softc *);
/* video(9) API */
static int pseye_open(void *, int);
static void pseye_close(void *);
static const char * pseye_get_devname(void *);
static int pseye_enum_format(void *, uint32_t,
struct video_format *);
static int pseye_get_format(void *, struct video_format *);
static int pseye_set_format(void *, struct video_format *);
static int pseye_try_format(void *, struct video_format *);
static int pseye_start_transfer(void *);
static int pseye_stop_transfer(void *);
CFATTACH_DECL2_NEW(pseye, sizeof(struct pseye_softc),
pseye_match, pseye_attach, pseye_detach, pseye_activate,
NULL, pseye_childdet);
static const struct video_hw_if pseye_hw_if = {
.open = pseye_open,
.close = pseye_close,
.get_devname = pseye_get_devname,
.enum_format = pseye_enum_format,
.get_format = pseye_get_format,
.set_format = pseye_set_format,
.try_format = pseye_try_format,
.start_transfer = pseye_start_transfer,
.stop_transfer = pseye_stop_transfer,
.control_iter_init = NULL,
.control_iter_next = NULL,
.get_control_desc_group = NULL,
.get_control_group = NULL,
.set_control_group = NULL,
};
static int
pseye_match(device_t parent, cfdata_t match, void *opaque)
{
struct usbif_attach_arg *uaa = opaque;
if (uaa->class != UICLASS_VENDOR)
return UMATCH_NONE;
if (uaa->vendor == USB_VENDOR_OMNIVISION2) {
switch (uaa->product) {
case USB_PRODUCT_OMNIVISION2_PSEYE:
if (uaa->ifaceno != 0)
return UMATCH_NONE;
return UMATCH_VENDOR_PRODUCT;
}
}
return UMATCH_NONE;
}
static void
pseye_attach(device_t parent, device_t self, void *opaque)
{
struct pseye_softc *sc = device_private(self);
struct usbif_attach_arg *uaa = opaque;
usbd_device_handle dev = uaa->device;
usb_interface_descriptor_t *id = NULL;
usb_endpoint_descriptor_t *ed = NULL, *ed_bulkin = NULL;
char *devinfo;
int i;
devinfo = usbd_devinfo_alloc(dev, 0);
aprint_naive("\n");
aprint_normal(": %s\n", devinfo);
usbd_devinfo_free(devinfo);
sc->sc_dev = self;
sc->sc_udev = dev;
sc->sc_iface = uaa->iface;
sc->sc_bulkin_bufferlen = PSEYE_BULKIN_BUFLEN;
sc->sc_dying = sc->sc_running = 0;
cv_init(&sc->sc_cv, device_xname(self));
mutex_init(&sc->sc_mtx, MUTEX_DEFAULT, IPL_NONE);
id = usbd_get_interface_descriptor(sc->sc_iface);
if (id == NULL) {
aprint_error_dev(self, "failed to get interface descriptor\n");
sc->sc_dying = 1;
return;
}
for (i = 0; i < id->bNumEndpoints; i++) {
ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i);
if (ed == NULL) {
aprint_error_dev(self, "couldn't get ep %d\n", i);
sc->sc_dying = 1;
return;
}
if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
ed_bulkin = ed;
break;
}
}
if (ed_bulkin == NULL) {
aprint_error_dev(self, "no bulk-in endpoint found\n");
sc->sc_dying = 1;
return;
}
sc->sc_bulkin = ed_bulkin->bEndpointAddress;
sc->sc_bulkin_xfer = usbd_alloc_xfer(sc->sc_udev);
if (sc->sc_bulkin_xfer == NULL) {
sc->sc_dying = 1;
return;
}
sc->sc_bulkin_buffer = usbd_alloc_buffer(sc->sc_bulkin_xfer,
sc->sc_bulkin_bufferlen);
if (sc->sc_bulkin_buffer == NULL) {
usbd_free_xfer(sc->sc_bulkin_xfer);
sc->sc_bulkin_xfer = NULL;
sc->sc_dying = 1;
return;
}
pseye_init(sc);
if (!pmf_device_register(self, NULL, NULL))
aprint_error_dev(self, "couldn't establish power handler\n");
sc->sc_videodev = video_attach_mi(&pseye_hw_if, self);
if (sc->sc_videodev == NULL) {
aprint_error_dev(self, "couldn't attach video layer\n");
sc->sc_dying = 1;
return;
}
usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev,
USBDEV(self));
}
static int
pseye_detach(device_t self, int flags)
{
struct pseye_softc *sc = device_private(self);
sc->sc_dying = 1;
pmf_device_deregister(self);
if (sc->sc_videodev != NULL) {
config_detach(sc->sc_videodev, flags);
sc->sc_videodev = NULL;
}
if (sc->sc_bulkin_xfer != NULL) {
usbd_free_xfer(sc->sc_bulkin_xfer);
sc->sc_bulkin_xfer = NULL;
}
if (sc->sc_bulkin_pipe != NULL) {
usbd_abort_pipe(sc->sc_bulkin_pipe);
sc->sc_bulkin_pipe = NULL;
}
mutex_enter(&sc->sc_mtx);
if (sc->sc_running) {
sc->sc_running = 0;
cv_wait_sig(&sc->sc_cv, &sc->sc_mtx);
}
mutex_exit(&sc->sc_mtx);
cv_destroy(&sc->sc_cv);
mutex_destroy(&sc->sc_mtx);
usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev,
USBDEV(sc->sc_dev));
return 0;
}
int
pseye_activate(device_ptr_t self, enum devact act)
{
struct pseye_softc *sc = device_private(self);
int rv;
rv = 0;
switch (act) {
case DVACT_ACTIVATE:
break;
case DVACT_DEACTIVATE:
sc->sc_dying = 1;
break;
}
return rv;
}
static void
pseye_childdet(device_t self, device_t child)
{
struct pseye_softc *sc = device_private(self);
if (sc->sc_videodev) {
KASSERT(sc->sc_videodev == child);
sc->sc_videodev = NULL;
}
}
/*
* Device access
*/
static void
pseye_init(struct pseye_softc *sc)
{
pseye_sccb_init(sc);
pseye_setregv(sc, 0xc2, 0x0c);
pseye_setregv(sc, 0x88, 0xf8);
pseye_setregv(sc, 0xc3, 0x69);
pseye_setregv(sc, 0x89, 0xff);
pseye_setregv(sc, 0x76, 0x03);
pseye_setregv(sc, 0x92, 0x01);
pseye_setregv(sc, 0x93, 0x18);
pseye_setregv(sc, 0x94, 0x10);
pseye_setregv(sc, 0x95, 0x10);
pseye_setregv(sc, 0xe2, 0x00);
pseye_setregv(sc, 0xe7, 0x3e);
pseye_setreg(sc, 0x1c, 0x0a);
pseye_setreg(sc, 0x1d, 0x22);
pseye_setreg(sc, 0x1d, 0x06);
pseye_setregv(sc, 0x96, 0x00);
pseye_setreg(sc, 0x97, 0x20);
pseye_setreg(sc, 0x97, 0x20);
pseye_setreg(sc, 0x97, 0x20);
pseye_setreg(sc, 0x97, 0x0a);
pseye_setreg(sc, 0x97, 0x3f);
pseye_setreg(sc, 0x97, 0x4a);
pseye_setreg(sc, 0x97, 0x20);
pseye_setreg(sc, 0x97, 0x15);
pseye_setreg(sc, 0x97, 0x0b);
pseye_setregv(sc, 0x8e, 0x40);
pseye_setregv(sc, 0x1f, 0x81);
pseye_setregv(sc, 0x34, 0x05);
pseye_setregv(sc, 0xe3, 0x04);
pseye_setregv(sc, 0x88, 0x00);
pseye_setregv(sc, 0x89, 0x00);
pseye_setregv(sc, 0x76, 0x00);
pseye_setregv(sc, 0xe7, 0x2e);
pseye_setregv(sc, 0x31, 0xf9);
pseye_setregv(sc, 0x25, 0x42);
pseye_setregv(sc, 0x21, 0xf0);
pseye_setreg(sc, 0x1c, 0x00);
pseye_setreg(sc, 0x1d, 0x40);
pseye_setreg(sc, 0x1d, 0x02);
pseye_setreg(sc, 0x1d, 0x00);
pseye_setreg(sc, 0x1d, 0x02);
pseye_setreg(sc, 0x1d, 0x57);
pseye_setreg(sc, 0x1d, 0xff);
pseye_setregv(sc, 0x8d, 0x1c);
pseye_setregv(sc, 0x8e, 0x80);
pseye_setregv(sc, 0xe5, 0x04);
pseye_sccb_setreg(sc, 0x12, 0x80);
pseye_sccb_setreg(sc, 0x11, 0x01);
pseye_sccb_setreg(sc, 0x11, 0x01);
pseye_sccb_setreg(sc, 0x11, 0x01);
pseye_sccb_setreg(sc, 0x11, 0x01);
pseye_sccb_setreg(sc, 0x11, 0x01);
pseye_sccb_setreg(sc, 0x11, 0x01);
pseye_sccb_setreg(sc, 0x11, 0x01);
pseye_sccb_setreg(sc, 0x11, 0x01);
pseye_sccb_setreg(sc, 0x11, 0x01);
pseye_sccb_setreg(sc, 0x11, 0x01);
pseye_sccb_setreg(sc, 0x11, 0x01);
pseye_sccb_setreg(sc, 0x3d, 0x03);
pseye_sccb_setreg(sc, 0x17, 0x26);
pseye_sccb_setreg(sc, 0x18, 0xa0);
pseye_sccb_setreg(sc, 0x19, 0x07);
pseye_sccb_setreg(sc, 0x1a, 0xf0);
pseye_sccb_setreg(sc, 0x32, 0x00);
pseye_sccb_setreg(sc, 0x29, 0xa0);
pseye_sccb_setreg(sc, 0x2c, 0xf0);
pseye_sccb_setreg(sc, 0x65, 0x20);
pseye_sccb_setreg(sc, 0x11, 0x01);
pseye_sccb_setreg(sc, 0x42, 0x7f);
pseye_sccb_setreg(sc, 0x63, 0xe0);
pseye_sccb_setreg(sc, 0x64, 0xff);
pseye_sccb_setreg(sc, 0x66, 0x00);
pseye_sccb_setreg(sc, 0x13, 0xf0);
pseye_sccb_setreg(sc, 0x0d, 0x41);
pseye_sccb_setreg(sc, 0x0f, 0xc5);
pseye_sccb_setreg(sc, 0x14, 0x11);
pseye_sccb_setreg(sc, 0x22, 0x7f);
pseye_sccb_setreg(sc, 0x23, 0x03);
pseye_sccb_setreg(sc, 0x24, 0x40);
pseye_sccb_setreg(sc, 0x25, 0x30);
pseye_sccb_setreg(sc, 0x26, 0xa1);
pseye_sccb_setreg(sc, 0x2a, 0x00);
pseye_sccb_setreg(sc, 0x2b, 0x00);
pseye_sccb_setreg(sc, 0x6b, 0xaa);
pseye_sccb_setreg(sc, 0x13, 0xff);
pseye_sccb_setreg(sc, 0x90, 0x05);
pseye_sccb_setreg(sc, 0x91, 0x01);
pseye_sccb_setreg(sc, 0x92, 0x03);
pseye_sccb_setreg(sc, 0x93, 0x00);
pseye_sccb_setreg(sc, 0x94, 0x60);
pseye_sccb_setreg(sc, 0x95, 0x3c);
pseye_sccb_setreg(sc, 0x96, 0x24);
pseye_sccb_setreg(sc, 0x97, 0x1e);
pseye_sccb_setreg(sc, 0x98, 0x62);
pseye_sccb_setreg(sc, 0x99, 0x80);
pseye_sccb_setreg(sc, 0x9a, 0x1e);
pseye_sccb_setreg(sc, 0x9b, 0x08);
pseye_sccb_setreg(sc, 0x9c, 0x20);
pseye_sccb_setreg(sc, 0x9e, 0x81);
pseye_sccb_setreg(sc, 0xa6, 0x04);
pseye_sccb_setreg(sc, 0x7e, 0x0c);
pseye_sccb_setreg(sc, 0x7f, 0x16);
pseye_sccb_setreg(sc, 0x80, 0x2a);
pseye_sccb_setreg(sc, 0x81, 0x4e);
pseye_sccb_setreg(sc, 0x82, 0x61);
pseye_sccb_setreg(sc, 0x83, 0x6f);
pseye_sccb_setreg(sc, 0x84, 0x7b);
pseye_sccb_setreg(sc, 0x85, 0x86);
pseye_sccb_setreg(sc, 0x86, 0x8e);
pseye_sccb_setreg(sc, 0x87, 0x97);
pseye_sccb_setreg(sc, 0x88, 0xa4);
pseye_sccb_setreg(sc, 0x89, 0xaf);
pseye_sccb_setreg(sc, 0x8a, 0xc5);
pseye_sccb_setreg(sc, 0x8b, 0xd7);
pseye_sccb_setreg(sc, 0x8c, 0xe8);
pseye_sccb_setreg(sc, 0x8d, 0x20);
pseye_sccb_setreg(sc, 0x0c, 0x90);
pseye_setregv(sc, 0xc0, 0x50);
pseye_setregv(sc, 0xc1, 0x3c);
pseye_setregv(sc, 0xc2, 0x0c);
pseye_sccb_setreg(sc, 0x2b, 0x00);
pseye_sccb_setreg(sc, 0x22, 0x7f);
pseye_sccb_setreg(sc, 0x23, 0x03);
pseye_sccb_setreg(sc, 0x11, 0x01);
pseye_sccb_setreg(sc, 0x0c, 0xd0);
pseye_sccb_setreg(sc, 0x64, 0xff);
pseye_sccb_setreg(sc, 0x0d, 0x41);
pseye_sccb_setreg(sc, 0x14, 0x41);
pseye_sccb_setreg(sc, 0x0e, 0xcd);
pseye_sccb_setreg(sc, 0xac, 0xbf);
pseye_sccb_setreg(sc, 0x8e, 0x00);
pseye_sccb_setreg(sc, 0x0c, 0xd0);
pseye_stop(sc);
}
static void
pseye_sccb_init(struct pseye_softc *sc)
{
pseye_setregv(sc, 0xe7, 0x3a);
pseye_setreg(sc, PSEYE_SCCB_ADDRESS, 0x60);
pseye_setreg(sc, PSEYE_SCCB_ADDRESS, 0x60);
pseye_setreg(sc, PSEYE_SCCB_ADDRESS, 0x60);
pseye_setreg(sc, PSEYE_SCCB_ADDRESS, 0x42);
}
static void
pseye_stop(struct pseye_softc *sc)
{
pseye_led(sc, false);
pseye_setreg(sc, 0xe0, 0x09);
}
static void
pseye_start(struct pseye_softc *sc)
{
pseye_led(sc, true);
pseye_setreg(sc, 0xe0, 0x00);
}
static void
pseye_led(struct pseye_softc *sc, bool enabled)
{
uint8_t val;
val = pseye_getreg(sc, 0x21);
pseye_setreg(sc, 0x21, val | 0x80);
val = pseye_getreg(sc, 0x23);
if (enabled == true)
val |= 0x80;
else
val &= ~0x80;
pseye_setreg(sc, 0x23, val);
}
static uint8_t
pseye_getreg(struct pseye_softc *sc, uint16_t reg)
{
usb_device_request_t req;
usbd_status err;
uint8_t buf;
req.bmRequestType = UT_READ_VENDOR_DEVICE;
req.bRequest = 1;
USETW(req.wValue, 0x0000);
USETW(req.wIndex, reg);
USETW(req.wLength, 1);
err = usbd_do_request(sc->sc_udev, &req, &buf);
if (err) {
aprint_error_dev(sc->sc_dev, "couldn't read reg 0x%04x: %s\n",
reg, usbd_errstr(err));
return 0xff;
}
return buf;
}
static void
pseye_setreg(struct pseye_softc *sc, uint16_t reg, uint8_t val)
{
usb_device_request_t req;
usbd_status err;
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
req.bRequest = 1;
USETW(req.wValue, 0x0000);
USETW(req.wIndex, reg);
USETW(req.wLength, 1);
err = usbd_do_request(sc->sc_udev, &req, &val);
if (err)
aprint_error_dev(sc->sc_dev, "couldn't write reg 0x%04x: %s\n",
reg, usbd_errstr(err));
}
static void
pseye_setregv(struct pseye_softc *sc, uint16_t reg, uint8_t val)
{
pseye_setreg(sc, reg, val);
if (pseye_getreg(sc, reg) != val)
aprint_error_dev(sc->sc_dev, "couldn't verify reg 0x%04x\n",
reg);
}
static void
pseye_sccb_setreg(struct pseye_softc *sc, uint8_t reg, uint8_t val)
{
pseye_setreg(sc, PSEYE_SCCB_SUBADDR, reg);
pseye_setreg(sc, PSEYE_SCCB_WRITE, val);
pseye_setreg(sc, PSEYE_SCCB_OPERATION, PSEYE_SCCB_OP_WRITE_3);
if (pseye_sccb_status(sc) == false)
aprint_error_dev(sc->sc_dev, "couldn't write sccb reg 0x%04x\n",
reg);
}
static bool
pseye_sccb_status(struct pseye_softc *sc)
{
int retry = 5;
uint8_t reg;
while (retry-- >= 0) {
reg = pseye_getreg(sc, PSEYE_SCCB_STATUS);
if (reg == 0x00)
return true;
else if (reg == 0x04)
return false;
}
aprint_error_dev(sc->sc_dev, "timeout reading sccb status\n");
return false;
}
static usbd_status
pseye_get_frame(struct pseye_softc *sc)
{
uint32_t len = sc->sc_bulkin_bufferlen;
if (sc->sc_dying)
return USBD_IOERROR;
return usbd_bulk_transfer(sc->sc_bulkin_xfer, sc->sc_bulkin_pipe,
USBD_SHORT_XFER_OK|USBD_NO_COPY, 50,
sc->sc_bulkin_buffer, &len, "pseyerb");
}
static int
pseye_init_pipes(struct pseye_softc *sc)
{
usbd_status err;
if (sc->sc_dying)
return EIO;
err = usbd_open_pipe(sc->sc_iface, sc->sc_bulkin, 0,
&sc->sc_bulkin_pipe);
if (err) {
aprint_error_dev(sc->sc_dev, "couldn't open bulk-in pipe: %s\n",
usbd_errstr(err));
return ENOMEM;
}
pseye_start(sc);
return 0;
}
int
pseye_close_pipes(struct pseye_softc *sc)
{
if (sc->sc_bulkin_pipe != NULL) {
usbd_abort_pipe(sc->sc_bulkin_pipe);
usbd_close_pipe(sc->sc_bulkin_pipe);
sc->sc_bulkin_pipe = NULL;
}
pseye_stop(sc);
return 0;
}
static void
pseye_transfer_thread(void *opaque)
{
struct pseye_softc *sc = opaque;
int error;
struct video_payload payload;
payload.frameno = 0;
while (sc->sc_running) {
error = pseye_get_frame(sc);
if (error == USBD_NORMAL_COMPLETION) {
payload.data = sc->sc_bulkin_buffer;
payload.size = sc->sc_bulkin_bufferlen;
payload.frameno = (payload.frameno + 1) & 1;
payload.end_of_frame = 1;
video_submit_payload(sc->sc_videodev, &payload);
}
}
mutex_enter(&sc->sc_mtx);
cv_broadcast(&sc->sc_cv);
mutex_exit(&sc->sc_mtx);
kthread_exit(0);
}
/* video(9) API implementations */
static int
pseye_open(void *opaque, int flags)
{
struct pseye_softc *sc = opaque;
if (sc->sc_dying)
return EIO;
return pseye_init_pipes(sc);
}
static void
pseye_close(void *opaque)
{
struct pseye_softc *sc = opaque;
pseye_close_pipes(sc);
}
static const char *
pseye_get_devname(void *opaque)
{
return "PLAYSTATION(R) Eye";
}
static int
pseye_enum_format(void *opaque, uint32_t index, struct video_format *format)
{
if (index != 0)
return EINVAL;
return pseye_get_format(opaque, format);
}
static int
pseye_get_format(void *opaque, struct video_format *format)
{
format->pixel_format = VIDEO_FORMAT_YUY2; /* XXX actually YUYV */
format->width = 640;
format->height = 480;
format->aspect_x = 4;
format->aspect_y = 3;
format->sample_size = format->width * format->height * 2;
format->stride = format->width * 2;
format->color.primaries = VIDEO_COLOR_PRIMARIES_UNSPECIFIED;
format->color.gamma_function = VIDEO_GAMMA_FUNCTION_UNSPECIFIED;
format->color.matrix_coeff = VIDEO_MATRIX_COEFF_UNSPECIFIED;
format->interlace_flags = VIDEO_INTERLACE_ON;
format->priv = 0;
return 0;
}
static int
pseye_set_format(void *opaque, struct video_format *format)
{
#if notyet
if (format->pixel_format != VIDEO_FORMAT_YUYV)
return EINVAL;
if (format->width != 640 || format->height != 480)
return EINVAL;
#endif
/* XXX */
return pseye_get_format(opaque, format);
}
static int
pseye_try_format(void *opaque, struct video_format *format)
{
return pseye_get_format(opaque, format);
}
static int
pseye_start_transfer(void *opaque)
{
struct pseye_softc *sc = opaque;
int err = 0;
mutex_enter(&sc->sc_mtx);
if (sc->sc_running == 0) {
sc->sc_running = 1;
err = kthread_create(PRI_PSEYE, 0, NULL, pseye_transfer_thread,
opaque, NULL, device_xname(sc->sc_dev));
} else
aprint_error_dev(sc->sc_dev, "transfer already in progress\n");
mutex_exit(&sc->sc_mtx);
return err;
}
static int
pseye_stop_transfer(void *opaque)
{
struct pseye_softc *sc = opaque;
mutex_enter(&sc->sc_mtx);
if (sc->sc_running) {
sc->sc_running = 0;
cv_wait_sig(&sc->sc_cv, &sc->sc_mtx);
}
mutex_exit(&sc->sc_mtx);
return 0;
}
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