示例#1
0
/*
 *		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;
	int ret = 0;

	/********************  spin lock ********************/
	usbhs_lock(priv, flags);

	usbhsg_status_set(gpriv, status);
	if (!(usbhsg_status_has(gpriv, USBHSG_STATUS_STARTED) &&
	      usbhsg_status_has(gpriv, USBHSG_STATUS_REGISTERD)))
		ret = -1; /* not ready */

	usbhs_unlock(priv, flags);
	/********************  spin unlock ********************/

	if (ret < 0)
		return 0; /* not ready is not error */

	/*
	 * enable interrupt and systems if ready
	 */
	dev_dbg(dev, "start gadget\n");

	/*
	 * pipe initialize and enable DCP
	 */
	usbhs_pipe_init(priv,
			usbhsg_queue_done,
			usbhsg_dma_map_ctrl);
	usbhs_fifo_init(priv);
	usbhsg_uep_init(gpriv);

	/* dcp init */
	dcp->pipe		= usbhs_dcp_malloc(priv);
	dcp->pipe->mod_private	= dcp;

	/*
	 * system config enble
	 * - HI speed
	 * - function
	 * - usb module
	 */
	usbhs_sys_hispeed_ctrl(priv, 1);
	usbhs_sys_function_ctrl(priv, 1);
	usbhs_sys_usb_ctrl(priv, 1);

	/*
	 * 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;
}
/*
 *		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);
	spinlock_t *lock;
	unsigned long flags;

	/********************  spin lock ********************/
	lock = usbhsg_trylock(gpriv, &flags);

	/*
	 * enable interrupt and systems if ready
	 */
	usbhsg_status_set(gpriv, status);
	if (!(usbhsg_status_has(gpriv, USBHSG_STATUS_STARTED) &&
	      usbhsg_status_has(gpriv, USBHSG_STATUS_REGISTERD)))
		goto usbhsg_try_start_unlock;

	dev_dbg(dev, "start gadget\n");

	/*
	 * pipe initialize and enable DCP
	 */
	usbhs_pipe_init(priv);
	usbhsg_uep_init(gpriv);
	usbhsg_dcp_enable(dcp);

	/*
	 * system config enble
	 * - HI speed
	 * - function
	 * - usb module
	 */
	usbhs_sys_hispeed_ctrl(priv, 1);
	usbhs_sys_function_ctrl(priv, 1);
	usbhs_sys_usb_ctrl(priv, 1);

	/*
	 * enable irq callback
	 */
	mod->irq_dev_state	= usbhsg_irq_dev_state;
	mod->irq_ctrl_stage	= usbhsg_irq_ctrl_stage;
	mod->irq_empty		= usbhsg_irq_empty;
	mod->irq_ready		= usbhsg_irq_ready;
	mod->irq_bempsts	= 0;
	mod->irq_brdysts	= 0;
	usbhs_irq_callback_update(priv, mod);

usbhsg_try_start_unlock:
	usbhsg_unlock(lock, &flags);
	/********************  spin unlock ********************/

	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);
	struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv);
	struct device *dev = usbhs_priv_to_dev(priv);
	spinlock_t *lock;
	unsigned long flags;

	/********************  spin lock ********************/
	lock = usbhsg_trylock(gpriv, &flags);

	/*
	 * disable interrupt and systems if 1st try
	 */
	usbhsg_status_clr(gpriv, status);
	if (!usbhsg_status_has(gpriv, USBHSG_STATUS_STARTED) &&
	    !usbhsg_status_has(gpriv, USBHSG_STATUS_REGISTERD))
		goto usbhsg_try_stop_unlock;

	/* disable all irq */
	mod->irq_dev_state	= NULL;
	mod->irq_ctrl_stage	= NULL;
	mod->irq_empty		= NULL;
	mod->irq_ready		= NULL;
	mod->irq_bempsts	= 0;
	mod->irq_brdysts	= 0;
	usbhs_irq_callback_update(priv, mod);

	usbhsg_dcp_disable(dcp);

	gpriv->gadget.speed = USB_SPEED_UNKNOWN;

	/* disable sys */
	usbhs_sys_hispeed_ctrl(priv, 0);
	usbhs_sys_function_ctrl(priv, 0);
	usbhs_sys_usb_ctrl(priv, 0);

	usbhsg_unlock(lock, &flags);
	/********************  spin unlock ********************/

	if (gpriv->driver &&
	    gpriv->driver->disconnect)
		gpriv->driver->disconnect(&gpriv->gadget);

	dev_dbg(dev, "stop gadget\n");

	return 0;

usbhsg_try_stop_unlock:
	usbhsg_unlock(lock, &flags);

	return 0;
}
示例#4
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);
	struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv);
	struct device *dev = usbhs_priv_to_dev(priv);
	unsigned long flags;
	int ret = 0;

	/********************  spin lock ********************/
	usbhs_lock(priv, flags);

	usbhsg_status_clr(gpriv, status);
	if (!usbhsg_status_has(gpriv, USBHSG_STATUS_STARTED) &&
	    !usbhsg_status_has(gpriv, USBHSG_STATUS_REGISTERD))
		ret = -1; /* already done */

	usbhs_unlock(priv, flags);
	/********************  spin unlock ********************/

	if (ret < 0)
		return 0; /* already done is not error */

	/*
	 * disable interrupt and systems if 1st try
	 */
	usbhs_fifo_quit(priv);

	/* 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 */
	usbhs_sys_hispeed_ctrl(priv, 0);
	usbhs_sys_function_ctrl(priv, 0);
	usbhs_sys_usb_ctrl(priv, 0);

	usbhsg_pipe_disable(dcp);

	if (gpriv->driver &&
	    gpriv->driver->disconnect)
		gpriv->driver->disconnect(&gpriv->gadget);

	dev_dbg(dev, "stop gadget\n");

	return 0;
}