[media] tm6000: improve loading speed on hauppauge 900H

- enable fast usb quirk
- use usleep_range instead on msleep for short sleep
- merge i2c out and usb delay
- do like the windows driver that upload the tuner firmware
  with 80 bytes packets

Signed-off-by: Matthieu CASTET <castet.matthieu@free.fr>
CC: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/tm6000/tm6000-cards.c

@@ -943,6 +943,7 @@ static void tm6000_config_tuner(struct tm6000_core *dev)
 		case TM6010_BOARD_HAUPPAUGE_900H:
 		case TM6010_BOARD_TERRATEC_CINERGY_HYBRID_XE:
 		case TM6010_BOARD_TWINHAN_TU501:
+			ctl.max_len = 80;
 			ctl.fname = "xc3028L-v36.fw";
 			break;
 		default:
@@ -1004,6 +1005,7 @@ static int fill_board_specific_data(struct tm6000_core *dev)
 	/* setup per-model quirks */
 	switch (dev->model) {
 	case TM6010_BOARD_TERRATEC_CINERGY_HYBRID_XE:
+	case TM6010_BOARD_HAUPPAUGE_900H:
 		dev->quirks |= TM6000_QUIRK_NO_USB_DELAY;
 		break;
 

drivers/media/video/tm6000/tm6000-core.c

@@ -38,6 +38,7 @@ int tm6000_read_write_usb(struct tm6000_core *dev, u8 req_type, u8 req,
 	int          ret, i;
 	unsigned int pipe;
 	u8	     *data = NULL;
+	int delay = 5000;
 
 	mutex_lock(&dev->usb_lock);
 
@@ -89,8 +90,19 @@ int tm6000_read_write_usb(struct tm6000_core *dev, u8 req_type, u8 req,
 
 	kfree(data);
 
-	if ((dev->quirks & TM6000_QUIRK_NO_USB_DELAY) == 0)
-		msleep(5);
+	if (dev->quirks & TM6000_QUIRK_NO_USB_DELAY)
+		delay = 0;
+
+	if (req == REQ_16_SET_GET_I2C_WR1_RDN && !(req_type & USB_DIR_IN)) {
+		unsigned int tsleep;
+		/* Calculate delay time, 14000us for 64 bytes */
+		tsleep = (len * 200) + 200;
+		if (tsleep < delay)
+			tsleep = delay;
+		usleep_range(tsleep, tsleep + 1000);
+	}
+	else if (delay)
+		usleep_range(delay, delay + 1000);
 
 	mutex_unlock(&dev->usb_lock);
 	return ret;

drivers/media/video/tm6000/tm6000-i2c.c

@@ -46,11 +46,10 @@ static int tm6000_i2c_send_regs(struct tm6000_core *dev, unsigned char addr,
 				__u8 reg, char *buf, int len)
 {
 	int rc;
-	unsigned int tsleep;
 	unsigned int i2c_packet_limit = 16;
 
 	if (dev->dev_type == TM6010)
-		i2c_packet_limit = 64;
+		i2c_packet_limit = 80;
 
 	if (!buf)
 		return -1;
@@ -71,10 +70,6 @@ static int tm6000_i2c_send_regs(struct tm6000_core *dev, unsigned char addr,
 		return rc;
 	}
 
-	/* Calculate delay time, 14000us for 64 bytes */
-	tsleep = ((len * 200) + 200 + 1000) / 1000;
-	msleep(tsleep);
-
 	/* release mutex */
 	return rc;
 }
@@ -145,7 +140,6 @@ static int tm6000_i2c_recv_regs16(struct tm6000_core *dev, unsigned char addr,
 			return rc;
 		}
 
-		msleep(1400 / 1000);
 		rc = tm6000_read_write_usb(dev, USB_DIR_IN | USB_TYPE_VENDOR |
 			USB_RECIP_DEVICE, REQ_35_AFTEK_TUNER_READ,
 			reg, 0, buf, len);