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path: root/drivers/usb/serial/mos7840.c
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Diffstat (limited to 'drivers/usb/serial/mos7840.c')
-rw-r--r--drivers/usb/serial/mos7840.c142
1 files changed, 63 insertions, 79 deletions
diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index 03b5e249e95e..c526550694a0 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -174,6 +174,7 @@
#define CLK_MULTI_REGISTER ((__u16)(0x02))
#define CLK_START_VALUE_REGISTER ((__u16)(0x03))
+#define GPIO_REGISTER ((__u16)(0x07))
#define SERIAL_LCR_DLAB ((__u16)(0x0080))
@@ -1101,14 +1102,25 @@ static int mos7840_open(struct tty_struct *tty, struct usb_serial_port *port)
mos7840_port->read_urb = port->read_urb;
/* set up our bulk in urb */
-
- usb_fill_bulk_urb(mos7840_port->read_urb,
- serial->dev,
- usb_rcvbulkpipe(serial->dev,
- port->bulk_in_endpointAddress),
- port->bulk_in_buffer,
- mos7840_port->read_urb->transfer_buffer_length,
- mos7840_bulk_in_callback, mos7840_port);
+ if ((serial->num_ports == 2)
+ && ((((__u16)port->number -
+ (__u16)(port->serial->minor)) % 2) != 0)) {
+ usb_fill_bulk_urb(mos7840_port->read_urb,
+ serial->dev,
+ usb_rcvbulkpipe(serial->dev,
+ (port->bulk_in_endpointAddress) + 2),
+ port->bulk_in_buffer,
+ mos7840_port->read_urb->transfer_buffer_length,
+ mos7840_bulk_in_callback, mos7840_port);
+ } else {
+ usb_fill_bulk_urb(mos7840_port->read_urb,
+ serial->dev,
+ usb_rcvbulkpipe(serial->dev,
+ port->bulk_in_endpointAddress),
+ port->bulk_in_buffer,
+ mos7840_port->read_urb->transfer_buffer_length,
+ mos7840_bulk_in_callback, mos7840_port);
+ }
dbg("mos7840_open: bulkin endpoint is %d",
port->bulk_in_endpointAddress);
@@ -1509,7 +1521,7 @@ static int mos7840_write(struct tty_struct *tty, struct usb_serial_port *port,
kmalloc(URB_TRANSFER_BUFFER_SIZE, GFP_KERNEL);
if (urb->transfer_buffer == NULL) {
- dev_err(&port->dev, "%s no more kernel memory...\n",
+ dev_err_console(port, "%s no more kernel memory...\n",
__func__);
goto exit;
}
@@ -1519,13 +1531,25 @@ static int mos7840_write(struct tty_struct *tty, struct usb_serial_port *port,
memcpy(urb->transfer_buffer, current_position, transfer_size);
/* fill urb with data and submit */
- usb_fill_bulk_urb(urb,
- serial->dev,
- usb_sndbulkpipe(serial->dev,
- port->bulk_out_endpointAddress),
- urb->transfer_buffer,
- transfer_size,
- mos7840_bulk_out_data_callback, mos7840_port);
+ if ((serial->num_ports == 2)
+ && ((((__u16)port->number -
+ (__u16)(port->serial->minor)) % 2) != 0)) {
+ usb_fill_bulk_urb(urb,
+ serial->dev,
+ usb_sndbulkpipe(serial->dev,
+ (port->bulk_out_endpointAddress) + 2),
+ urb->transfer_buffer,
+ transfer_size,
+ mos7840_bulk_out_data_callback, mos7840_port);
+ } else {
+ usb_fill_bulk_urb(urb,
+ serial->dev,
+ usb_sndbulkpipe(serial->dev,
+ port->bulk_out_endpointAddress),
+ urb->transfer_buffer,
+ transfer_size,
+ mos7840_bulk_out_data_callback, mos7840_port);
+ }
data1 = urb->transfer_buffer;
dbg("bulkout endpoint is %d", port->bulk_out_endpointAddress);
@@ -1535,7 +1559,7 @@ static int mos7840_write(struct tty_struct *tty, struct usb_serial_port *port,
if (status) {
mos7840_port->busy[i] = 0;
- dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed "
+ dev_err_console(port, "%s - usb_submit_urb(write bulk) failed "
"with status = %d\n", __func__, status);
bytes_sent = status;
goto exit;
@@ -1838,7 +1862,7 @@ static int mos7840_send_cmd_write_baud_rate(struct moschip_port *mos7840_port,
} else {
#ifdef HW_flow_control
- / *setting h/w flow control bit to 0 */
+ /* setting h/w flow control bit to 0 */
Data = 0xb;
mos7840_port->shadowMCR = Data;
status = mos7840_set_uart_reg(port, MODEM_CONTROL_REGISTER,
@@ -2305,19 +2329,26 @@ static int mos7840_ioctl(struct tty_struct *tty,
static int mos7840_calc_num_ports(struct usb_serial *serial)
{
- int mos7840_num_ports = 0;
-
- dbg("numberofendpoints: cur %d, alt %d",
- (int)serial->interface->cur_altsetting->desc.bNumEndpoints,
- (int)serial->interface->altsetting->desc.bNumEndpoints);
- if (serial->interface->cur_altsetting->desc.bNumEndpoints == 5) {
- mos7840_num_ports = serial->num_ports = 2;
- } else if (serial->interface->cur_altsetting->desc.bNumEndpoints == 9) {
+ __u16 Data = 0x00;
+ int ret = 0;
+ int mos7840_num_ports;
+
+ ret = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
+ MCS_RDREQ, MCS_RD_RTYPE, 0, GPIO_REGISTER, &Data,
+ VENDOR_READ_LENGTH, MOS_WDR_TIMEOUT);
+
+ if ((Data & 0x01) == 0) {
+ mos7840_num_ports = 2;
+ serial->num_bulk_in = 2;
+ serial->num_bulk_out = 2;
+ serial->num_ports = 2;
+ } else {
+ mos7840_num_ports = 4;
serial->num_bulk_in = 4;
serial->num_bulk_out = 4;
- mos7840_num_ports = serial->num_ports = 4;
+ serial->num_ports = 4;
}
- dbg ("mos7840_num_ports = %d", mos7840_num_ports);
+
return mos7840_num_ports;
}
@@ -2638,7 +2669,6 @@ static struct usb_driver io_driver = {
.probe = usb_serial_probe,
.disconnect = usb_serial_disconnect,
.id_table = moschip_id_table_combined,
- .no_dynamic_id = 1,
};
static struct usb_serial_driver moschip7840_4port_device = {
@@ -2647,7 +2677,6 @@ static struct usb_serial_driver moschip7840_4port_device = {
.name = "mos7840",
},
.description = DRIVER_DESC,
- .usb_driver = &io_driver,
.id_table = moschip_port_id_table,
.num_ports = 4,
.open = mos7840_open,
@@ -2674,57 +2703,12 @@ static struct usb_serial_driver moschip7840_4port_device = {
.read_int_callback = mos7840_interrupt_callback,
};
-/****************************************************************************
- * moschip7840_init
- * This is called by the module subsystem, or on startup to initialize us
- ****************************************************************************/
-static int __init moschip7840_init(void)
-{
- int retval;
-
- dbg("%s", " mos7840_init :entering..........");
-
- /* Register with the usb serial */
- retval = usb_serial_register(&moschip7840_4port_device);
-
- if (retval)
- goto failed_port_device_register;
-
- dbg("%s", "Entering...");
- printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
- DRIVER_DESC "\n");
-
- /* Register with the usb */
- retval = usb_register(&io_driver);
- if (retval == 0) {
- dbg("%s", "Leaving...");
- return 0;
- }
- usb_serial_deregister(&moschip7840_4port_device);
-failed_port_device_register:
- return retval;
-}
-
-/****************************************************************************
- * moschip7840_exit
- * Called when the driver is about to be unloaded.
- ****************************************************************************/
-static void __exit moschip7840_exit(void)
-{
-
- dbg("%s", " mos7840_exit :entering..........");
-
- usb_deregister(&io_driver);
-
- usb_serial_deregister(&moschip7840_4port_device);
-
- dbg("%s", "Entering...");
-}
+static struct usb_serial_driver * const serial_drivers[] = {
+ &moschip7840_4port_device, NULL
+};
-module_init(moschip7840_init);
-module_exit(moschip7840_exit);
+module_usb_serial_driver(io_driver, serial_drivers);
-/* Module information */
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-17 18:49:36 +0000