[media] it913x ver 1.09 support for USB 1 devices (IT9135)

IT9135 devices do support USB 1.
Support added with restricton on pid count to 5.
IT9137 devices wil not connect in USB 1 mode.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 20 insertions, 3 deletions

diff --git a/drivers/media/dvb/dvb-usb/it913x.c b/drivers/media/dvb/dvb-usb/it913x.c
index a541904851f5..9f582411e7d3 100644
--- a/drivers/media/dvb/dvb-usb/it913x.c
+++ b/drivers/media/dvb/dvb-usb/it913x.c
@@ -350,6 +350,19 @@ static int it913x_identify_state(struct usb_device *udev,
         /* checnk for dual mode */
         it913x_config.dual_mode =  it913x_read_reg(udev, 0x49c5);
 
+        if (udev->speed != USB_SPEED_HIGH) {
+                props->adapter[0].fe[0].pid_filter_count = 5;
+                info("USB 1 low speed mode - connect to USB 2 port");
+                if (pid_filter > 0)
+                        pid_filter = 0;
+                if (it913x_config.dual_mode) {
+                        it913x_config.dual_mode = 0;
+                        info("Dual mode not supported in USB 1");
+                }
+        } else /* For replugging */
+                if(props->adapter[0].fe[0].pid_filter_count == 5)
+                        props->adapter[0].fe[0].pid_filter_count = 31;
+
         /* TODO different remotes */
         remote = it913x_read_reg(udev, 0x49ac); /* Remote */
         if (remote == 0)
@@ -499,6 +512,10 @@ static int it913x_frontend_attach(struct dvb_usb_adapter *adap)
         int ret = 0;
         u8 adap_addr = I2C_BASE_ADDR + (adap->id << 5);
         u16 ep_size = adap->props.fe[0].stream.u.bulk.buffersize;
+        u8 pkt_size = 0x80;
+
+        if (adap->dev->udev->speed != USB_SPEED_HIGH)
+                pkt_size = 0x10;
 
         it913x_config.adf = it913x_read_reg(udev, IO_MUX_POWER_CLK);
 
@@ -514,13 +531,13 @@ static int it913x_frontend_attach(struct dvb_usb_adapter *adap)
                 ret = it913x_wr_reg(udev, DEV_0, EP4_TX_LEN_LSB,
                                         ep_size & 0xff);
                 ret = it913x_wr_reg(udev, DEV_0, EP4_TX_LEN_MSB, ep_size >> 8);
-                ret = it913x_wr_reg(udev, DEV_0, EP4_MAX_PKT, 0x80);
+                ret = it913x_wr_reg(udev, DEV_0, EP4_MAX_PKT, pkt_size);
         } else if (adap->id == 1 && adap->fe_adap[0].fe) {
                 ret = it913x_wr_reg(udev, DEV_0, EP0_TX_EN, 0x6f);
                 ret = it913x_wr_reg(udev, DEV_0, EP5_TX_LEN_LSB,
                                         ep_size & 0xff);
                 ret = it913x_wr_reg(udev, DEV_0, EP5_TX_LEN_MSB, ep_size >> 8);
-                ret = it913x_wr_reg(udev, DEV_0, EP5_MAX_PKT, 0x80);
+                ret = it913x_wr_reg(udev, DEV_0, EP5_MAX_PKT, pkt_size);
                 ret = it913x_wr_reg(udev, DEV_0_DMOD, MP2IF2_EN, 0x1);
                 ret = it913x_wr_reg(udev, DEV_1_DMOD, MP2IF_SERIAL, 0x1);
                 ret = it913x_wr_reg(udev, DEV_1, TOP_HOSTB_SER_MODE, 0x1);
@@ -676,5 +693,5 @@ module_exit(it913x_module_exit);
 
 MODULE_AUTHOR("Malcolm Priestley <tvboxspy@gmail.com>");
 MODULE_DESCRIPTION("it913x USB 2 Driver");
-MODULE_VERSION("1.08");
+MODULE_VERSION("1.09");
 MODULE_LICENSE("GPL");