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path: root/drivers/usb/serial/pl2303.c
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Diffstat (limited to 'drivers/usb/serial/pl2303.c')
-rw-r--r--drivers/usb/serial/pl2303.c112
1 files changed, 58 insertions, 54 deletions
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index 0da1df9c79bf..ae3ec1a64008 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -65,6 +65,7 @@ static struct usb_device_id id_table [] = {
{ USB_DEVICE(ITEGNO_VENDOR_ID, ITEGNO_PRODUCT_ID_2080) },
{ USB_DEVICE(MA620_VENDOR_ID, MA620_PRODUCT_ID) },
{ USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID) },
+ { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) },
{ USB_DEVICE(TRIPP_VENDOR_ID, TRIPP_PRODUCT_ID) },
{ USB_DEVICE(RADIOSHACK_VENDOR_ID, RADIOSHACK_PRODUCT_ID) },
{ USB_DEVICE(DCU10_VENDOR_ID, DCU10_PRODUCT_ID) },
@@ -84,9 +85,10 @@ static struct usb_device_id id_table [] = {
{ USB_DEVICE(DATAPILOT_U2_VENDOR_ID, DATAPILOT_U2_PRODUCT_ID) },
{ USB_DEVICE(BELKIN_VENDOR_ID, BELKIN_PRODUCT_ID) },
{ USB_DEVICE(ALCOR_VENDOR_ID, ALCOR_PRODUCT_ID) },
- { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_ID) },
{ USB_DEVICE(WS002IN_VENDOR_ID, WS002IN_PRODUCT_ID) },
{ USB_DEVICE(COREGA_VENDOR_ID, COREGA_PRODUCT_ID) },
+ { USB_DEVICE(HL340_VENDOR_ID, HL340_PRODUCT_ID) },
+ { USB_DEVICE(YCCABLE_VENDOR_ID, YCCABLE_PRODUCT_ID) },
{ } /* Terminating entry */
};
@@ -97,7 +99,10 @@ static struct usb_driver pl2303_driver = {
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.id_table = id_table,
+ .suspend = usb_serial_suspend,
+ .resume = usb_serial_resume,
.no_dynamic_id = 1,
+ .supports_autosuspend = 1,
};
#define SET_LINE_REQUEST_TYPE 0x21
@@ -310,12 +315,39 @@ static unsigned int pl2303_buf_get(struct pl2303_buf *pb, char *buf,
return count;
}
+static int pl2303_vendor_read(__u16 value, __u16 index,
+ struct usb_serial *serial, unsigned char *buf)
+{
+ int res = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
+ VENDOR_READ_REQUEST, VENDOR_READ_REQUEST_TYPE,
+ value, index, buf, 1, 100);
+ dbg("0x%x:0x%x:0x%x:0x%x %d - %x", VENDOR_READ_REQUEST_TYPE,
+ VENDOR_READ_REQUEST, value, index, res, buf[0]);
+ return res;
+}
+
+static int pl2303_vendor_write(__u16 value, __u16 index,
+ struct usb_serial *serial)
+{
+ int res = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
+ VENDOR_WRITE_REQUEST, VENDOR_WRITE_REQUEST_TYPE,
+ value, index, NULL, 0, 100);
+ dbg("0x%x:0x%x:0x%x:0x%x %d", VENDOR_WRITE_REQUEST_TYPE,
+ VENDOR_WRITE_REQUEST, value, index, res);
+ return res;
+}
+
static int pl2303_startup(struct usb_serial *serial)
{
struct pl2303_private *priv;
enum pl2303_type type = type_0;
+ unsigned char *buf;
int i;
+ buf = kmalloc(10, GFP_KERNEL);
+ if (buf == NULL)
+ return -ENOMEM;
+
if (serial->dev->descriptor.bDeviceClass == 0x02)
type = type_0;
else if (serial->dev->descriptor.bMaxPacketSize0 == 0x40)
@@ -340,9 +372,27 @@ static int pl2303_startup(struct usb_serial *serial)
priv->type = type;
usb_set_serial_port_data(serial->port[i], priv);
}
+
+ pl2303_vendor_read(0x8484, 0, serial, buf);
+ pl2303_vendor_write(0x0404, 0, serial);
+ pl2303_vendor_read(0x8484, 0, serial, buf);
+ pl2303_vendor_read(0x8383, 0, serial, buf);
+ pl2303_vendor_read(0x8484, 0, serial, buf);
+ pl2303_vendor_write(0x0404, 1, serial);
+ pl2303_vendor_read(0x8484, 0, serial, buf);
+ pl2303_vendor_read(0x8383, 0, serial, buf);
+ pl2303_vendor_write(0, 1, serial);
+ pl2303_vendor_write(1, 0, serial);
+ if (type == HX)
+ pl2303_vendor_write(2, 0x44, serial);
+ else
+ pl2303_vendor_write(2, 0x24, serial);
+
+ kfree(buf);
return 0;
cleanup:
+ kfree(buf);
for (--i; i>=0; --i) {
priv = usb_get_serial_port_data(serial->port[i]);
pl2303_buf_free(priv->buf);
@@ -582,24 +632,12 @@ static void pl2303_set_termios(struct usb_serial_port *port,
buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], buf[6]);
if (cflag & CRTSCTS) {
- __u16 index;
if (priv->type == HX)
- index = 0x61;
+ pl2303_vendor_write(0x0, 0x61, serial);
else
- index = 0x41;
- i = usb_control_msg(serial->dev,
- usb_sndctrlpipe(serial->dev, 0),
- VENDOR_WRITE_REQUEST,
- VENDOR_WRITE_REQUEST_TYPE,
- 0x0, index, NULL, 0, 100);
- dbg("0x40:0x1:0x0:0x%x %d", index, i);
+ pl2303_vendor_write(0x0, 0x41, serial);
} else {
- i = usb_control_msg(serial->dev,
- usb_sndctrlpipe(serial->dev, 0),
- VENDOR_WRITE_REQUEST,
- VENDOR_WRITE_REQUEST_TYPE,
- 0x0, 0x0, NULL, 0, 100);
- dbg ("0x40:0x1:0x0:0x0 %d", i);
+ pl2303_vendor_write(0x0, 0x0, serial);
}
/* FIXME: Need to read back resulting baud rate */
@@ -629,7 +667,7 @@ static void pl2303_close(struct usb_serial_port *port, struct file *filp)
set_current_state(TASK_INTERRUPTIBLE);
if (pl2303_buf_data_avail(priv->buf) == 0 ||
timeout == 0 || signal_pending(current) ||
- !usb_get_intfdata(port->serial->interface)) /* disconnect */
+ port->serial->disconnected)
break;
spin_unlock_irqrestore(&priv->lock, flags);
timeout = schedule_timeout(timeout);
@@ -678,7 +716,6 @@ static int pl2303_open(struct usb_serial_port *port, struct file *filp)
struct ktermios tmp_termios;
struct usb_serial *serial = port->serial;
struct pl2303_private *priv = usb_get_serial_port_data(port);
- unsigned char *buf;
int result;
dbg("%s - port %d", __FUNCTION__, port->number);
@@ -686,45 +723,12 @@ static int pl2303_open(struct usb_serial_port *port, struct file *filp)
if (priv->type != HX) {
usb_clear_halt(serial->dev, port->write_urb->pipe);
usb_clear_halt(serial->dev, port->read_urb->pipe);
- }
-
- buf = kmalloc(10, GFP_KERNEL);
- if (buf==NULL)
- return -ENOMEM;
-
-#define FISH(a,b,c,d) \
- result=usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev,0), \
- b, a, c, d, buf, 1, 100); \
- dbg("0x%x:0x%x:0x%x:0x%x %d - %x",a,b,c,d,result,buf[0]);
-
-#define SOUP(a,b,c,d) \
- result=usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev,0), \
- b, a, c, d, NULL, 0, 100); \
- dbg("0x%x:0x%x:0x%x:0x%x %d",a,b,c,d,result);
-
- FISH (VENDOR_READ_REQUEST_TYPE, VENDOR_READ_REQUEST, 0x8484, 0);
- SOUP (VENDOR_WRITE_REQUEST_TYPE, VENDOR_WRITE_REQUEST, 0x0404, 0);
- FISH (VENDOR_READ_REQUEST_TYPE, VENDOR_READ_REQUEST, 0x8484, 0);
- FISH (VENDOR_READ_REQUEST_TYPE, VENDOR_READ_REQUEST, 0x8383, 0);
- FISH (VENDOR_READ_REQUEST_TYPE, VENDOR_READ_REQUEST, 0x8484, 0);
- SOUP (VENDOR_WRITE_REQUEST_TYPE, VENDOR_WRITE_REQUEST, 0x0404, 1);
- FISH (VENDOR_READ_REQUEST_TYPE, VENDOR_READ_REQUEST, 0x8484, 0);
- FISH (VENDOR_READ_REQUEST_TYPE, VENDOR_READ_REQUEST, 0x8383, 0);
- SOUP (VENDOR_WRITE_REQUEST_TYPE, VENDOR_WRITE_REQUEST, 0, 1);
- SOUP (VENDOR_WRITE_REQUEST_TYPE, VENDOR_WRITE_REQUEST, 1, 0);
-
- if (priv->type == HX) {
- /* HX chip */
- SOUP (VENDOR_WRITE_REQUEST_TYPE, VENDOR_WRITE_REQUEST, 2, 0x44);
- /* reset upstream data pipes */
- SOUP (VENDOR_WRITE_REQUEST_TYPE, VENDOR_WRITE_REQUEST, 8, 0);
- SOUP (VENDOR_WRITE_REQUEST_TYPE, VENDOR_WRITE_REQUEST, 9, 0);
} else {
- SOUP (VENDOR_WRITE_REQUEST_TYPE, VENDOR_WRITE_REQUEST, 2, 0x24);
+ /* reset upstream data pipes */
+ pl2303_vendor_write(8, 0, serial);
+ pl2303_vendor_write(9, 0, serial);
}
- kfree(buf);
-
/* Setup termios */
if (port->tty) {
pl2303_set_termios(port, &tmp_termios);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.