[mirror_ubuntu-bionic-kernel.git] / drivers / staging / udlfb / udlfb.h

#ifndef UDLFB_H
#define UDLFB_H

/* as libdlo */
#define BUF_HIGH_WATER_MARK	1024
#define BUF_SIZE		(64*1024)

struct dlfb_data {
	struct usb_device *udev;
	struct usb_interface *interface;
	struct urb *tx_urb, *ctrl_urb;
	struct usb_ctrlrequest dr;
	struct fb_info *info;
	char *buf;
	char *bufend;
	char *backing_buffer;
	struct mutex bulk_mutex;
	char edid[128];
	int screen_size;
	int line_length;
	struct completion done;
	int base16;
	int base16d;
	int base8;
	int base8d;
	u32 pseudo_palette[256];
};

#define NR_USB_REQUEST_I2C_SUB_IO 0x02
#define NR_USB_REQUEST_CHANNEL 0x12

static void dlfb_bulk_callback(struct urb *urb)
{
	struct dlfb_data *dev_info = urb->context;
	complete(&dev_info->done);
}

static void dlfb_edid(struct dlfb_data *dev_info)
{
	int i;
	int ret;
	char rbuf[2];

	for (i = 0; i < 128; i++) {
		ret =
		    usb_control_msg(dev_info->udev,
				    usb_rcvctrlpipe(dev_info->udev, 0), (0x02),
				    (0x80 | (0x02 << 5)), i << 8, 0xA1, rbuf, 2,
				    0);
		dev_info->edid[i] = rbuf[1];
	}

}

static int dlfb_bulk_msg(struct dlfb_data *dev_info, int len)
{
	int ret;

	init_completion(&dev_info->done);

	dev_info->tx_urb->actual_length = 0;
	dev_info->tx_urb->transfer_buffer_length = len;

	ret = usb_submit_urb(dev_info->tx_urb, GFP_KERNEL);
	if (!wait_for_completion_timeout(&dev_info->done, 1000)) {
		usb_kill_urb(dev_info->tx_urb);
		printk("usb timeout !!!\n");
	}

	return dev_info->tx_urb->actual_length;
}

#define dlfb_set_register insert_command

#endif
Commit	Line	Data
39e7df5d GKH	1	#ifndef UDLFB_H
39e7df5d GKH	2	#define UDLFB_H
88e58b1a	3
39e7df5d GKH	4	/* as libdlo */
	5	#define BUF_HIGH_WATER_MARK 1024
	6	#define BUF_SIZE (64*1024)
88e58b1a RDI	7
	8	struct dlfb_data {
	9	struct usb_device *udev;
	10	struct usb_interface *interface;
	11	struct urb tx_urb, ctrl_urb;
	12	struct usb_ctrlrequest dr;
	13	struct fb_info *info;
	14	char *buf;
	15	char *bufend;
	16	char *backing_buffer;
	17	struct mutex bulk_mutex;
	18	char edid[128];
	19	int screen_size;
	20	int line_length;
	21	struct completion done;
	22	int base16;
7316bc55	23	int base16d;
88e58b1a	24	int base8;
7316bc55	25	int base8d;
59277b67	26	u32 pseudo_palette[256];
88e58b1a RDI	27	};
88e58b1a RDI	28
cc403dc6 BT	29	#define NR_USB_REQUEST_I2C_SUB_IO 0x02
	30	#define NR_USB_REQUEST_CHANNEL 0x12
	31
88e58b1a RDI	32	static void dlfb_bulk_callback(struct urb *urb)
88e58b1a RDI	33	{
88e58b1a RDI	34	struct dlfb_data *dev_info = urb->context;
88e58b1a RDI	35	complete(&dev_info->done);
88e58b1a RDI	36	}
88e58b1a RDI	37
7316bc55 RDI	38	static void dlfb_edid(struct dlfb_data *dev_info)
	39	{
	40	int i;
	41	int ret;
	42	char rbuf[2];
	43
	44	for (i = 0; i < 128; i++) {
	45	ret =
	46	usb_control_msg(dev_info->udev,
	47	usb_rcvctrlpipe(dev_info->udev, 0), (0x02),
	48	(0x80 \| (0x02 << 5)), i << 8, 0xA1, rbuf, 2,
	49	0);
7316bc55 RDI	50	dev_info->edid[i] = rbuf[1];
	51	}
	52
	53	}
	54
88e58b1a RDI	55	static int dlfb_bulk_msg(struct dlfb_data *dev_info, int len)
88e58b1a RDI	56	{
88e58b1a RDI	57	int ret;
	58
	59	init_completion(&dev_info->done);
	60
	61	dev_info->tx_urb->actual_length = 0;
	62	dev_info->tx_urb->transfer_buffer_length = len;
	63
	64	ret = usb_submit_urb(dev_info->tx_urb, GFP_KERNEL);
	65	if (!wait_for_completion_timeout(&dev_info->done, 1000)) {
	66	usb_kill_urb(dev_info->tx_urb);
	67	printk("usb timeout !!!\n");
	68	}
	69
	70	return dev_info->tx_urb->actual_length;
88e58b1a RDI	71	}
88e58b1a RDI	72
59277b67	73	#define dlfb_set_register insert_command
39e7df5d GKH	74
39e7df5d GKH	75	#endif