USB: Add new FT232H chip to drivers/usb/serial/ftdi_sio.c

appended patch adds support for the new FTDI FT232H chip. This chip is a
single channel version of the dual FT2232H/quad FT4232H, coming with it's
own default PID 0x6014 (FT2232H uses the same PID 0x6010 like FT2232C,
FT4232H has also it's own PID).

The patch was checked on an UM232H module and a terminal program with TX/RX
shorted to that typing in the terminal reproduced the characters.

Signed-off-by: Uwe Bonnes <bon@elektron.ikp.physik.tu-darmstadt.de>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 1627289775538eaa2b1967e2547c54717c82baa3..2e06b90aa1f8f50139c8873011f1c34956077b63 100644 (file)
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -179,6 +179,7 @@ static struct usb_device_id id_table_combined [] = {
        { USB_DEVICE(FTDI_VID, FTDI_232RL_PID) },
        { USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) },
        { USB_DEVICE(FTDI_VID, FTDI_4232H_PID) },
+       { USB_DEVICE(FTDI_VID, FTDI_232H_PID) },
        { USB_DEVICE(FTDI_VID, FTDI_MICRO_CHAMELEON_PID) },
        { USB_DEVICE(FTDI_VID, FTDI_RELAIS_PID) },
        { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_PID) },
@@ -848,7 +849,8 @@ static const char *ftdi_chip_name[] = {
        [FT2232C] = "FT2232C",
        [FT232RL] = "FT232RL",
        [FT2232H] = "FT2232H",
-       [FT4232H] = "FT4232H"
+       [FT4232H] = "FT4232H",
+       [FT232H]  = "FT232H"
 };
 
 
@@ -1168,6 +1170,7 @@ static __u32 get_ftdi_divisor(struct tty_struct *tty,
                break;
        case FT2232H: /* FT2232H chip */
        case FT4232H: /* FT4232H chip */
+       case FT232H:  /* FT232H chip */
                if ((baud <= 12000000) & (baud >= 1200)) {
                        div_value = ftdi_2232h_baud_to_divisor(baud);
                } else if (baud < 1200) {
@@ -1429,9 +1432,12 @@ static void ftdi_determine_type(struct usb_serial_port *port)
        } else if (version < 0x600) {
                /* Assume it's an FT232BM (or FT245BM) */
                priv->chip_type = FT232BM;
-       } else {
-               /* Assume it's an FT232R */
+       } else if (version < 0x900) {
+               /* Assume it's an FT232RL */
                priv->chip_type = FT232RL;
+       } else {
+               /* Assume it's an FT232H */
+               priv->chip_type = FT232H;
        }
        dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]);
 }
@@ -1559,7 +1565,8 @@ static int create_sysfs_attrs(struct usb_serial_port *port)
                     priv->chip_type == FT2232C ||
                     priv->chip_type == FT232RL ||
                     priv->chip_type == FT2232H ||
-                    priv->chip_type == FT4232H)) {
+                    priv->chip_type == FT4232H ||
+                    priv->chip_type == FT232H)) {
                        retval = device_create_file(&port->dev,
                                                    &dev_attr_latency_timer);
                }
@@ -1580,7 +1587,8 @@ static void remove_sysfs_attrs(struct usb_serial_port *port)
                    priv->chip_type == FT2232C ||
                    priv->chip_type == FT232RL ||
                    priv->chip_type == FT2232H ||
-                   priv->chip_type == FT4232H) {
+                   priv->chip_type == FT4232H ||
+                    priv->chip_type == FT232H) {
                        device_remove_file(&port->dev, &dev_attr_latency_timer);
                }
        }
@@ -2212,6 +2220,7 @@ static int ftdi_tiocmget(struct tty_struct *tty)
        case FT232RL:
        case FT2232H:
        case FT4232H:
+       case FT232H:
                len = 2;
                break;
        default:

diff --git a/drivers/usb/serial/ftdi_sio.h b/drivers/usb/serial/ftdi_sio.h
index 213fe3d61282478270e757518d4453a3dca1c69d..19584faa86f92c35ce94fcdf345c5d591da58187 100644 (file)
--- a/drivers/usb/serial/ftdi_sio.h
+++ b/drivers/usb/serial/ftdi_sio.h
@@ -156,7 +156,8 @@ enum ftdi_chip_type {
        FT2232C = 4,
        FT232RL = 5,
        FT2232H = 6,
-       FT4232H = 7
+       FT4232H = 7,
+       FT232H  = 8
 };
 
 enum ftdi_sio_baudrate {

diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h
index ab1fcdf3c378e954882a8a7db9bc1e4cb672aed8..19156d1049fe22134e745158a6dc64da1a9d0a1b 100644 (file)
--- a/drivers/usb/serial/ftdi_sio_ids.h
+++ b/drivers/usb/serial/ftdi_sio_ids.h
@@ -22,6 +22,7 @@
 #define FTDI_8U232AM_ALT_PID 0x6006 /* FTDI's alternate PID for above */
 #define FTDI_8U2232C_PID 0x6010 /* Dual channel device */
 #define FTDI_4232H_PID 0x6011 /* Quad channel hi-speed device */
+#define FTDI_232H_PID  0x6014 /* Single channel hi-speed device */
 #define FTDI_SIO_PID   0x8372  /* Product Id SIO application of 8U100AX */
 #define FTDI_232RL_PID  0xFBFA  /* Product ID for FT232RL */