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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.c406
1 files changed, 199 insertions, 207 deletions
diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index 84fb1dcd30dc..c40f95c1951c 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -238,7 +238,7 @@ static int mos7840_set_reg_sync(struct usb_serial_port *port, __u16 reg,
{
struct usb_device *dev = port->serial->dev;
val = val & 0x00ff;
- dbg("mos7840_set_reg_sync offset is %x, value %x\n", reg, val);
+ dbg("mos7840_set_reg_sync offset is %x, value %x", reg, val);
return usb_control_msg(dev, usb_sndctrlpipe(dev, 0), MCS_WRREQ,
MCS_WR_RTYPE, val, reg, NULL, 0,
@@ -260,7 +260,7 @@ static int mos7840_get_reg_sync(struct usb_serial_port *port, __u16 reg,
ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), MCS_RDREQ,
MCS_RD_RTYPE, 0, reg, val, VENDOR_READ_LENGTH,
MOS_WDR_TIMEOUT);
- dbg("mos7840_get_reg_sync offset is %x, return val %x\n", reg, *val);
+ dbg("mos7840_get_reg_sync offset is %x, return val %x", reg, *val);
*val = (*val) & 0x00ff;
return ret;
}
@@ -282,18 +282,18 @@ static int mos7840_set_uart_reg(struct usb_serial_port *port, __u16 reg,
if (port->serial->num_ports == 4) {
val |= (((__u16) port->number -
(__u16) (port->serial->minor)) + 1) << 8;
- dbg("mos7840_set_uart_reg application number is %x\n", val);
+ dbg("mos7840_set_uart_reg application number is %x", val);
} else {
if (((__u16) port->number - (__u16) (port->serial->minor)) == 0) {
val |= (((__u16) port->number -
(__u16) (port->serial->minor)) + 1) << 8;
- dbg("mos7840_set_uart_reg application number is %x\n",
+ dbg("mos7840_set_uart_reg application number is %x",
val);
} else {
val |=
(((__u16) port->number -
(__u16) (port->serial->minor)) + 2) << 8;
- dbg("mos7840_set_uart_reg application number is %x\n",
+ dbg("mos7840_set_uart_reg application number is %x",
val);
}
}
@@ -315,24 +315,24 @@ static int mos7840_get_uart_reg(struct usb_serial_port *port, __u16 reg,
int ret = 0;
__u16 Wval;
- /* dbg("application number is %4x \n",
+ /* dbg("application number is %4x",
(((__u16)port->number - (__u16)(port->serial->minor))+1)<<8); */
/* Wval is same as application number */
if (port->serial->num_ports == 4) {
Wval =
(((__u16) port->number - (__u16) (port->serial->minor)) +
1) << 8;
- dbg("mos7840_get_uart_reg application number is %x\n", Wval);
+ dbg("mos7840_get_uart_reg application number is %x", Wval);
} else {
if (((__u16) port->number - (__u16) (port->serial->minor)) == 0) {
Wval = (((__u16) port->number -
(__u16) (port->serial->minor)) + 1) << 8;
- dbg("mos7840_get_uart_reg application number is %x\n",
+ dbg("mos7840_get_uart_reg application number is %x",
Wval);
} else {
Wval = (((__u16) port->number -
(__u16) (port->serial->minor)) + 2) << 8;
- dbg("mos7840_get_uart_reg application number is %x\n",
+ dbg("mos7840_get_uart_reg application number is %x",
Wval);
}
}
@@ -346,11 +346,11 @@ static int mos7840_get_uart_reg(struct usb_serial_port *port, __u16 reg,
static void mos7840_dump_serial_port(struct moschip_port *mos7840_port)
{
- dbg("***************************************\n");
- dbg("SpRegOffset is %2x\n", mos7840_port->SpRegOffset);
- dbg("ControlRegOffset is %2x \n", mos7840_port->ControlRegOffset);
- dbg("DCRRegOffset is %2x \n", mos7840_port->DcrRegOffset);
- dbg("***************************************\n");
+ dbg("***************************************");
+ dbg("SpRegOffset is %2x", mos7840_port->SpRegOffset);
+ dbg("ControlRegOffset is %2x", mos7840_port->ControlRegOffset);
+ dbg("DCRRegOffset is %2x", mos7840_port->DcrRegOffset);
+ dbg("***************************************");
}
@@ -474,12 +474,12 @@ static void mos7840_control_callback(struct urb *urb)
goto exit;
}
- dbg("%s urb buffer size is %d\n", __func__, urb->actual_length);
- dbg("%s mos7840_port->MsrLsr is %d port %d\n", __func__,
+ dbg("%s urb buffer size is %d", __func__, urb->actual_length);
+ dbg("%s mos7840_port->MsrLsr is %d port %d", __func__,
mos7840_port->MsrLsr, mos7840_port->port_num);
data = urb->transfer_buffer;
regval = (__u8) data[0];
- dbg("%s data is %x\n", __func__, regval);
+ dbg("%s data is %x", __func__, regval);
if (mos7840_port->MsrLsr == 0)
mos7840_handle_new_msr(mos7840_port, regval);
else if (mos7840_port->MsrLsr == 1)
@@ -538,7 +538,7 @@ static void mos7840_interrupt_callback(struct urb *urb)
__u16 wval, wreg = 0;
int status = urb->status;
- dbg("%s", " : Entering\n");
+ dbg("%s", " : Entering");
switch (status) {
case 0:
@@ -570,7 +570,7 @@ static void mos7840_interrupt_callback(struct urb *urb)
* Byte 5 FIFO status for both */
if (length && length > 5) {
- dbg("%s \n", "Wrong data !!!");
+ dbg("%s", "Wrong data !!!");
return;
}
@@ -587,17 +587,17 @@ static void mos7840_interrupt_callback(struct urb *urb)
(__u16) (serial->minor)) + 1) << 8;
if (mos7840_port->open) {
if (sp[i] & 0x01) {
- dbg("SP%d No Interrupt !!!\n", i);
+ dbg("SP%d No Interrupt !!!", i);
} else {
switch (sp[i] & 0x0f) {
case SERIAL_IIR_RLS:
dbg("Serial Port %d: Receiver status error or ", i);
- dbg("address bit detected in 9-bit mode\n");
+ dbg("address bit detected in 9-bit mode");
mos7840_port->MsrLsr = 1;
wreg = LINE_STATUS_REGISTER;
break;
case SERIAL_IIR_MS:
- dbg("Serial Port %d: Modem status change\n", i);
+ dbg("Serial Port %d: Modem status change", i);
mos7840_port->MsrLsr = 0;
wreg = MODEM_STATUS_REGISTER;
break;
@@ -689,7 +689,7 @@ static void mos7840_bulk_in_callback(struct urb *urb)
mos7840_port = urb->context;
if (!mos7840_port) {
- dbg("%s", "NULL mos7840_port pointer \n");
+ dbg("%s", "NULL mos7840_port pointer");
mos7840_port->read_urb_busy = false;
return;
}
@@ -702,41 +702,41 @@ static void mos7840_bulk_in_callback(struct urb *urb)
port = (struct usb_serial_port *)mos7840_port->port;
if (mos7840_port_paranoia_check(port, __func__)) {
- dbg("%s", "Port Paranoia failed \n");
+ dbg("%s", "Port Paranoia failed");
mos7840_port->read_urb_busy = false;
return;
}
serial = mos7840_get_usb_serial(port, __func__);
if (!serial) {
- dbg("%s\n", "Bad serial pointer ");
+ dbg("%s", "Bad serial pointer");
mos7840_port->read_urb_busy = false;
return;
}
- dbg("%s\n", "Entering... \n");
+ dbg("%s", "Entering... ");
data = urb->transfer_buffer;
- dbg("%s", "Entering ........... \n");
+ dbg("%s", "Entering ...........");
if (urb->actual_length) {
tty = tty_port_tty_get(&mos7840_port->port->port);
if (tty) {
tty_buffer_request_room(tty, urb->actual_length);
tty_insert_flip_string(tty, data, urb->actual_length);
- dbg(" %s \n", data);
+ dbg(" %s ", data);
tty_flip_buffer_push(tty);
tty_kref_put(tty);
}
mos7840_port->icount.rx += urb->actual_length;
smp_wmb();
- dbg("mos7840_port->icount.rx is %d:\n",
+ dbg("mos7840_port->icount.rx is %d:",
mos7840_port->icount.rx);
}
if (!mos7840_port->read_urb) {
- dbg("%s", "URB KILLED !!!\n");
+ dbg("%s", "URB KILLED !!!");
mos7840_port->read_urb_busy = false;
return;
}
@@ -777,16 +777,16 @@ static void mos7840_bulk_out_data_callback(struct urb *urb)
spin_unlock(&mos7840_port->pool_lock);
if (status) {
- dbg("nonzero write bulk status received:%d\n", status);
+ dbg("nonzero write bulk status received:%d", status);
return;
}
if (mos7840_port_paranoia_check(mos7840_port->port, __func__)) {
- dbg("%s", "Port Paranoia failed \n");
+ dbg("%s", "Port Paranoia failed");
return;
}
- dbg("%s \n", "Entering .........");
+ dbg("%s", "Entering .........");
tty = tty_port_tty_get(&mos7840_port->port->port);
if (tty && mos7840_port->open)
@@ -830,15 +830,17 @@ static int mos7840_open(struct tty_struct *tty,
struct moschip_port *mos7840_port;
struct moschip_port *port0;
+ dbg ("%s enter", __func__);
+
if (mos7840_port_paranoia_check(port, __func__)) {
- dbg("%s", "Port Paranoia failed \n");
+ dbg("%s", "Port Paranoia failed");
return -ENODEV;
}
serial = port->serial;
if (mos7840_serial_paranoia_check(serial, __func__)) {
- dbg("%s", "Serial Paranoia failed \n");
+ dbg("%s", "Serial Paranoia failed");
return -ENODEV;
}
@@ -891,20 +893,20 @@ static int mos7840_open(struct tty_struct *tty,
Data = 0x0;
status = mos7840_get_reg_sync(port, mos7840_port->SpRegOffset, &Data);
if (status < 0) {
- dbg("Reading Spreg failed\n");
+ dbg("Reading Spreg failed");
return -1;
}
Data |= 0x80;
status = mos7840_set_reg_sync(port, mos7840_port->SpRegOffset, Data);
if (status < 0) {
- dbg("writing Spreg failed\n");
+ dbg("writing Spreg failed");
return -1;
}
Data &= ~0x80;
status = mos7840_set_reg_sync(port, mos7840_port->SpRegOffset, Data);
if (status < 0) {
- dbg("writing Spreg failed\n");
+ dbg("writing Spreg failed");
return -1;
}
/* End of block to be checked */
@@ -913,7 +915,7 @@ static int mos7840_open(struct tty_struct *tty,
status = mos7840_get_reg_sync(port, mos7840_port->ControlRegOffset,
&Data);
if (status < 0) {
- dbg("Reading Controlreg failed\n");
+ dbg("Reading Controlreg failed");
return -1;
}
Data |= 0x08; /* Driver done bit */
@@ -921,7 +923,7 @@ static int mos7840_open(struct tty_struct *tty,
status = mos7840_set_reg_sync(port,
mos7840_port->ControlRegOffset, Data);
if (status < 0) {
- dbg("writing Controlreg failed\n");
+ dbg("writing Controlreg failed");
return -1;
}
/* do register settings here */
@@ -932,21 +934,21 @@ static int mos7840_open(struct tty_struct *tty,
Data = 0x00;
status = mos7840_set_uart_reg(port, INTERRUPT_ENABLE_REGISTER, Data);
if (status < 0) {
- dbg("disableing interrupts failed\n");
+ dbg("disabling interrupts failed");
return -1;
}
/* Set FIFO_CONTROL_REGISTER to the default value */
Data = 0x00;
status = mos7840_set_uart_reg(port, FIFO_CONTROL_REGISTER, Data);
if (status < 0) {
- dbg("Writing FIFO_CONTROL_REGISTER failed\n");
+ dbg("Writing FIFO_CONTROL_REGISTER failed");
return -1;
}
Data = 0xcf;
status = mos7840_set_uart_reg(port, FIFO_CONTROL_REGISTER, Data);
if (status < 0) {
- dbg("Writing FIFO_CONTROL_REGISTER failed\n");
+ dbg("Writing FIFO_CONTROL_REGISTER failed");
return -1;
}
@@ -1043,12 +1045,12 @@ static int mos7840_open(struct tty_struct *tty,
* (can't set it up in mos7840_startup as the *
* structures were not set up at that time.) */
- dbg("port number is %d \n", port->number);
- dbg("serial number is %d \n", port->serial->minor);
- dbg("Bulkin endpoint is %d \n", port->bulk_in_endpointAddress);
- dbg("BulkOut endpoint is %d \n", port->bulk_out_endpointAddress);
- dbg("Interrupt endpoint is %d \n", port->interrupt_in_endpointAddress);
- dbg("port's number in the device is %d\n", mos7840_port->port_num);
+ dbg("port number is %d", port->number);
+ dbg("serial number is %d", port->serial->minor);
+ dbg("Bulkin endpoint is %d", port->bulk_in_endpointAddress);
+ dbg("BulkOut endpoint is %d", port->bulk_out_endpointAddress);
+ dbg("Interrupt endpoint is %d", port->interrupt_in_endpointAddress);
+ dbg("port's number in the device is %d", mos7840_port->port_num);
mos7840_port->read_urb = port->read_urb;
/* set up our bulk in urb */
@@ -1061,7 +1063,7 @@ static int mos7840_open(struct tty_struct *tty,
mos7840_port->read_urb->transfer_buffer_length,
mos7840_bulk_in_callback, mos7840_port);
- dbg("mos7840_open: bulkin endpoint is %d\n",
+ dbg("mos7840_open: bulkin endpoint is %d",
port->bulk_in_endpointAddress);
mos7840_port->read_urb_busy = true;
response = usb_submit_urb(mos7840_port->read_urb, GFP_KERNEL);
@@ -1087,9 +1089,11 @@ static int mos7840_open(struct tty_struct *tty,
mos7840_port->icount.tx = 0;
mos7840_port->icount.rx = 0;
- dbg("\n\nusb_serial serial:%p mos7840_port:%p\n usb_serial_port port:%p\n\n",
+ dbg("usb_serial serial:%p mos7840_port:%p\n usb_serial_port port:%p",
serial, mos7840_port, port);
+ dbg ("%s leave", __func__);
+
return 0;
}
@@ -1112,16 +1116,16 @@ static int mos7840_chars_in_buffer(struct tty_struct *tty)
unsigned long flags;
struct moschip_port *mos7840_port;
- dbg("%s \n", " mos7840_chars_in_buffer:entering ...........");
+ dbg("%s", " mos7840_chars_in_buffer:entering ...........");
if (mos7840_port_paranoia_check(port, __func__)) {
- dbg("%s", "Invalid port \n");
+ dbg("%s", "Invalid port");
return 0;
}
mos7840_port = mos7840_get_port_private(port);
if (mos7840_port == NULL) {
- dbg("%s \n", "mos7840_break:leaving ...........");
+ dbg("%s", "mos7840_break:leaving ...........");
return 0;
}
@@ -1135,54 +1139,12 @@ static int mos7840_chars_in_buffer(struct tty_struct *tty)
}
-/************************************************************************
- *
- * mos7840_block_until_tx_empty
- *
- * This function will block the close until one of the following:
- * 1. TX count are 0
- * 2. The mos7840 has stopped
- * 3. A timeout of 3 seconds without activity has expired
- *
- ************************************************************************/
-static void mos7840_block_until_tx_empty(struct tty_struct *tty,
- struct moschip_port *mos7840_port)
-{
- int timeout = HZ / 10;
- int wait = 30;
- int count;
-
- while (1) {
-
- count = mos7840_chars_in_buffer(tty);
-
- /* Check for Buffer status */
- if (count <= 0)
- return;
-
- /* Block the thread for a while */
- interruptible_sleep_on_timeout(&mos7840_port->wait_chase,
- timeout);
-
- /* No activity.. count down section */
- wait--;
- if (wait == 0) {
- dbg("%s - TIMEOUT", __func__);
- return;
- } else {
- /* Reset timeout value back to seconds */
- wait = 30;
- }
- }
-}
-
/*****************************************************************************
* mos7840_close
* this function is called by the tty driver when a port is closed
*****************************************************************************/
-static void mos7840_close(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp)
+static void mos7840_close(struct usb_serial_port *port)
{
struct usb_serial *serial;
struct moschip_port *mos7840_port;
@@ -1190,16 +1152,16 @@ static void mos7840_close(struct tty_struct *tty,
int j;
__u16 Data;
- dbg("%s\n", "mos7840_close:entering...");
+ dbg("%s", "mos7840_close:entering...");
if (mos7840_port_paranoia_check(port, __func__)) {
- dbg("%s", "Port Paranoia failed \n");
+ dbg("%s", "Port Paranoia failed");
return;
}
serial = mos7840_get_usb_serial(port, __func__);
if (!serial) {
- dbg("%s", "Serial Paranoia failed \n");
+ dbg("%s", "Serial Paranoia failed");
return;
}
@@ -1223,35 +1185,31 @@ static void mos7840_close(struct tty_struct *tty,
}
}
- if (serial->dev)
- /* flush and block until tx is empty */
- mos7840_block_until_tx_empty(tty, mos7840_port);
-
/* While closing port, shutdown all bulk read, write *
* and interrupt read if they exists */
if (serial->dev) {
if (mos7840_port->write_urb) {
- dbg("%s", "Shutdown bulk write\n");
+ dbg("%s", "Shutdown bulk write");
usb_kill_urb(mos7840_port->write_urb);
}
if (mos7840_port->read_urb) {
- dbg("%s", "Shutdown bulk read\n");
+ dbg("%s", "Shutdown bulk read");
usb_kill_urb(mos7840_port->read_urb);
mos7840_port->read_urb_busy = false;
}
if ((&mos7840_port->control_urb)) {
- dbg("%s", "Shutdown control read\n");
+ dbg("%s", "Shutdown control read");
/*/ usb_kill_urb (mos7840_port->control_urb); */
}
}
/* if(mos7840_port->ctrl_buf != NULL) */
/* kfree(mos7840_port->ctrl_buf); */
port0->open_ports--;
- dbg("mos7840_num_open_ports in close%d:in port%d\n",
+ dbg("mos7840_num_open_ports in close%d:in port%d",
port0->open_ports, port->number);
if (port0->open_ports == 0) {
if (serial->port[0]->interrupt_in_urb) {
- dbg("%s", "Shutdown interrupt_in_urb\n");
+ dbg("%s", "Shutdown interrupt_in_urb");
usb_kill_urb(serial->port[0]->interrupt_in_urb);
}
}
@@ -1271,7 +1229,7 @@ static void mos7840_close(struct tty_struct *tty,
mos7840_port->open = 0;
- dbg("%s \n", "Leaving ............");
+ dbg("%s", "Leaving ............");
}
/************************************************************************
@@ -1326,17 +1284,17 @@ static void mos7840_break(struct tty_struct *tty, int break_state)
struct usb_serial *serial;
struct moschip_port *mos7840_port;
- dbg("%s \n", "Entering ...........");
- dbg("mos7840_break: Start\n");
+ dbg("%s", "Entering ...........");
+ dbg("mos7840_break: Start");
if (mos7840_port_paranoia_check(port, __func__)) {
- dbg("%s", "Port Paranoia failed \n");
+ dbg("%s", "Port Paranoia failed");
return;
}
serial = mos7840_get_usb_serial(port, __func__);
if (!serial) {
- dbg("%s", "Serial Paranoia failed \n");
+ dbg("%s", "Serial Paranoia failed");
return;
}
@@ -1356,7 +1314,7 @@ static void mos7840_break(struct tty_struct *tty, int break_state)
/* FIXME: no locking on shadowLCR anywhere in driver */
mos7840_port->shadowLCR = data;
- dbg("mcs7840_break mos7840_port->shadowLCR is %x\n",
+ dbg("mcs7840_break mos7840_port->shadowLCR is %x",
mos7840_port->shadowLCR);
mos7840_set_uart_reg(port, LINE_CONTROL_REGISTER,
mos7840_port->shadowLCR);
@@ -1380,17 +1338,17 @@ static int mos7840_write_room(struct tty_struct *tty)
unsigned long flags;
struct moschip_port *mos7840_port;
- dbg("%s \n", " mos7840_write_room:entering ...........");
+ dbg("%s", " mos7840_write_room:entering ...........");
if (mos7840_port_paranoia_check(port, __func__)) {
- dbg("%s", "Invalid port \n");
- dbg("%s \n", " mos7840_write_room:leaving ...........");
+ dbg("%s", "Invalid port");
+ dbg("%s", " mos7840_write_room:leaving ...........");
return -1;
}
mos7840_port = mos7840_get_port_private(port);
if (mos7840_port == NULL) {
- dbg("%s \n", "mos7840_break:leaving ...........");
+ dbg("%s", "mos7840_break:leaving ...........");
return -1;
}
@@ -1430,16 +1388,16 @@ static int mos7840_write(struct tty_struct *tty, struct usb_serial_port *port,
/* __u16 Data; */
const unsigned char *current_position = data;
unsigned char *data1;
- dbg("%s \n", "entering ...........");
- /* dbg("mos7840_write: mos7840_port->shadowLCR is %x\n",
+ dbg("%s", "entering ...........");
+ /* dbg("mos7840_write: mos7840_port->shadowLCR is %x",
mos7840_port->shadowLCR); */
#ifdef NOTMOS7840
Data = 0x00;
status = mos7840_get_uart_reg(port, LINE_CONTROL_REGISTER, &Data);
mos7840_port->shadowLCR = Data;
- dbg("mos7840_write: LINE_CONTROL_REGISTER is %x\n", Data);
- dbg("mos7840_write: mos7840_port->shadowLCR is %x\n",
+ dbg("mos7840_write: LINE_CONTROL_REGISTER is %x", Data);
+ dbg("mos7840_write: mos7840_port->shadowLCR is %x",
mos7840_port->shadowLCR);
/* Data = 0x03; */
@@ -1453,32 +1411,32 @@ static int mos7840_write(struct tty_struct *tty, struct usb_serial_port *port,
/* status = mos7840_set_uart_reg(port,DIVISOR_LATCH_LSB,Data); */
Data = 0x00;
status = mos7840_get_uart_reg(port, DIVISOR_LATCH_LSB, &Data);
- dbg("mos7840_write:DLL value is %x\n", Data);
+ dbg("mos7840_write:DLL value is %x", Data);
Data = 0x0;
status = mos7840_get_uart_reg(port, DIVISOR_LATCH_MSB, &Data);
- dbg("mos7840_write:DLM value is %x\n", Data);
+ dbg("mos7840_write:DLM value is %x", Data);
Data = Data & ~SERIAL_LCR_DLAB;
- dbg("mos7840_write: mos7840_port->shadowLCR is %x\n",
+ dbg("mos7840_write: mos7840_port->shadowLCR is %x",
mos7840_port->shadowLCR);
status = mos7840_set_uart_reg(port, LINE_CONTROL_REGISTER, Data);
#endif
if (mos7840_port_paranoia_check(port, __func__)) {
- dbg("%s", "Port Paranoia failed \n");
+ dbg("%s", "Port Paranoia failed");
return -1;
}
serial = port->serial;
if (mos7840_serial_paranoia_check(serial, __func__)) {
- dbg("%s", "Serial Paranoia failed \n");
+ dbg("%s", "Serial Paranoia failed");
return -1;
}
mos7840_port = mos7840_get_port_private(port);
if (mos7840_port == NULL) {
- dbg("%s", "mos7840_port is NULL\n");
+ dbg("%s", "mos7840_port is NULL");
return -1;
}
@@ -1490,7 +1448,7 @@ static int mos7840_write(struct tty_struct *tty, struct usb_serial_port *port,
if (!mos7840_port->busy[i]) {
mos7840_port->busy[i] = 1;
urb = mos7840_port->write_urb_pool[i];
- dbg("\nURB:%d", i);
+ dbg("URB:%d", i);
break;
}
}
@@ -1525,7 +1483,7 @@ static int mos7840_write(struct tty_struct *tty, struct usb_serial_port *port,
mos7840_bulk_out_data_callback, mos7840_port);
data1 = urb->transfer_buffer;
- dbg("\nbulkout endpoint is %d", port->bulk_out_endpointAddress);
+ dbg("bulkout endpoint is %d", port->bulk_out_endpointAddress);
/* send it down the pipe */
status = usb_submit_urb(urb, GFP_ATOMIC);
@@ -1540,7 +1498,7 @@ static int mos7840_write(struct tty_struct *tty, struct usb_serial_port *port,
bytes_sent = transfer_size;
mos7840_port->icount.tx += transfer_size;
smp_wmb();
- dbg("mos7840_port->icount.tx is %d:\n", mos7840_port->icount.tx);
+ dbg("mos7840_port->icount.tx is %d:", mos7840_port->icount.tx);
exit:
return bytes_sent;
@@ -1559,11 +1517,11 @@ static void mos7840_throttle(struct tty_struct *tty)
int status;
if (mos7840_port_paranoia_check(port, __func__)) {
- dbg("%s", "Invalid port \n");
+ dbg("%s", "Invalid port");
return;
}
- dbg("- port %d\n", port->number);
+ dbg("- port %d", port->number);
mos7840_port = mos7840_get_port_private(port);
@@ -1571,11 +1529,11 @@ static void mos7840_throttle(struct tty_struct *tty)
return;
if (!mos7840_port->open) {
- dbg("%s\n", "port not opened");
+ dbg("%s", "port not opened");
return;
}
- dbg("%s", "Entering .......... \n");
+ dbg("%s", "Entering ..........");
/* if we are implementing XON/XOFF, send the stop character */
if (I_IXOFF(tty)) {
@@ -1609,7 +1567,7 @@ static void mos7840_unthrottle(struct tty_struct *tty)
struct moschip_port *mos7840_port = mos7840_get_port_private(port);
if (mos7840_port_paranoia_check(port, __func__)) {
- dbg("%s", "Invalid port \n");
+ dbg("%s", "Invalid port");
return;
}
@@ -1621,7 +1579,7 @@ static void mos7840_unthrottle(struct tty_struct *tty)
return;
}
- dbg("%s", "Entering .......... \n");
+ dbg("%s", "Entering ..........");
/* if we are implementing XON/XOFF, send the start character */
if (I_IXOFF(tty)) {
@@ -1706,7 +1664,7 @@ static int mos7840_tiocmset(struct tty_struct *tty, struct file *file,
status = mos7840_set_uart_reg(port, MODEM_CONTROL_REGISTER, mcr);
if (status < 0) {
- dbg("setting MODEM_CONTROL_REGISTER Failed\n");
+ dbg("setting MODEM_CONTROL_REGISTER Failed");
return status;
}
@@ -1775,11 +1733,11 @@ static int mos7840_calc_baud_rate_divisor(int baudRate, int *divisor,
custom++;
*divisor = custom;
- dbg(" Baud %d = %d\n", baudrate, custom);
+ dbg(" Baud %d = %d", baudrate, custom);
return 0;
}
- dbg("%s\n", " Baud calculation Failed...");
+ dbg("%s", " Baud calculation Failed...");
return -1;
#endif
}
@@ -1805,16 +1763,16 @@ static int mos7840_send_cmd_write_baud_rate(struct moschip_port *mos7840_port,
port = (struct usb_serial_port *)mos7840_port->port;
if (mos7840_port_paranoia_check(port, __func__)) {
- dbg("%s", "Invalid port \n");
+ dbg("%s", "Invalid port");
return -1;
}
if (mos7840_serial_paranoia_check(port->serial, __func__)) {
- dbg("%s", "Invalid Serial \n");
+ dbg("%s", "Invalid Serial");
return -1;
}
- dbg("%s", "Entering .......... \n");
+ dbg("%s", "Entering ..........");
number = mos7840_port->port->number - mos7840_port->port->serial->minor;
@@ -1830,7 +1788,7 @@ static int mos7840_send_cmd_write_baud_rate(struct moschip_port *mos7840_port,
status = mos7840_set_uart_reg(port, MODEM_CONTROL_REGISTER,
Data);
if (status < 0) {
- dbg("Writing spreg failed in set_serial_baud\n");
+ dbg("Writing spreg failed in set_serial_baud");
return -1;
}
#endif
@@ -1843,7 +1801,7 @@ static int mos7840_send_cmd_write_baud_rate(struct moschip_port *mos7840_port,
status = mos7840_set_uart_reg(port, MODEM_CONTROL_REGISTER,
Data);
if (status < 0) {
- dbg("Writing spreg failed in set_serial_baud\n");
+ dbg("Writing spreg failed in set_serial_baud");
return -1;
}
#endif
@@ -1858,14 +1816,14 @@ static int mos7840_send_cmd_write_baud_rate(struct moschip_port *mos7840_port,
status = mos7840_get_reg_sync(port, mos7840_port->SpRegOffset,
&Data);
if (status < 0) {
- dbg("reading spreg failed in set_serial_baud\n");
+ dbg("reading spreg failed in set_serial_baud");
return -1;
}
Data = (Data & 0x8f) | clk_sel_val;
status = mos7840_set_reg_sync(port, mos7840_port->SpRegOffset,
Data);
if (status < 0) {
- dbg("Writing spreg failed in set_serial_baud\n");
+ dbg("Writing spreg failed in set_serial_baud");
return -1;
}
/* Calculate the Divisor */
@@ -1881,11 +1839,11 @@ static int mos7840_send_cmd_write_baud_rate(struct moschip_port *mos7840_port,
/* Write the divisor */
Data = (unsigned char)(divisor & 0xff);
- dbg("set_serial_baud Value to write DLL is %x\n", Data);
+ dbg("set_serial_baud Value to write DLL is %x", Data);
mos7840_set_uart_reg(port, DIVISOR_LATCH_LSB, Data);
Data = (unsigned char)((divisor & 0xff00) >> 8);
- dbg("set_serial_baud Value to write DLM is %x\n", Data);
+ dbg("set_serial_baud Value to write DLM is %x", Data);
mos7840_set_uart_reg(port, DIVISOR_LATCH_MSB, Data);
/* Disable access to divisor latch */
@@ -1923,12 +1881,12 @@ static void mos7840_change_port_settings(struct tty_struct *tty,
port = (struct usb_serial_port *)mos7840_port->port;
if (mos7840_port_paranoia_check(port, __func__)) {
- dbg("%s", "Invalid port \n");
+ dbg("%s", "Invalid port");
return;
}
if (mos7840_serial_paranoia_check(port->serial, __func__)) {
- dbg("%s", "Invalid Serial \n");
+ dbg("%s", "Invalid Serial");
return;
}
@@ -1941,7 +1899,7 @@ static void mos7840_change_port_settings(struct tty_struct *tty,
return;
}
- dbg("%s", "Entering .......... \n");
+ dbg("%s", "Entering ..........");
lData = LCR_BITS_8;
lStop = LCR_STOP_1;
@@ -2001,7 +1959,7 @@ static void mos7840_change_port_settings(struct tty_struct *tty,
~(LCR_BITS_MASK | LCR_STOP_MASK | LCR_PAR_MASK);
mos7840_port->shadowLCR |= (lData | lParity | lStop);
- dbg("mos7840_change_port_settings mos7840_port->shadowLCR is %x\n",
+ dbg("mos7840_change_port_settings mos7840_port->shadowLCR is %x",
mos7840_port->shadowLCR);
/* Disable Interrupts */
Data = 0x00;
@@ -2043,7 +2001,7 @@ static void mos7840_change_port_settings(struct tty_struct *tty,
if (!baud) {
/* pick a default, any default... */
- dbg("%s\n", "Picked default baud...");
+ dbg("%s", "Picked default baud...");
baud = 9600;
}
@@ -2066,7 +2024,7 @@ static void mos7840_change_port_settings(struct tty_struct *tty,
}
wake_up(&mos7840_port->delta_msr_wait);
mos7840_port->delta_msr_cond = 1;
- dbg("mos7840_change_port_settings mos7840_port->shadowLCR is End %x\n",
+ dbg("mos7840_change_port_settings mos7840_port->shadowLCR is End %x",
mos7840_port->shadowLCR);
return;
@@ -2086,16 +2044,16 @@ static void mos7840_set_termios(struct tty_struct *tty,
unsigned int cflag;
struct usb_serial *serial;
struct moschip_port *mos7840_port;
- dbg("mos7840_set_termios: START\n");
+ dbg("mos7840_set_termios: START");
if (mos7840_port_paranoia_check(port, __func__)) {
- dbg("%s", "Invalid port \n");
+ dbg("%s", "Invalid port");
return;
}
serial = port->serial;
if (mos7840_serial_paranoia_check(serial, __func__)) {
- dbg("%s", "Invalid Serial \n");
+ dbg("%s", "Invalid Serial");
return;
}
@@ -2109,7 +2067,7 @@ static void mos7840_set_termios(struct tty_struct *tty,
return;
}
- dbg("%s\n", "setting termios - ");
+ dbg("%s", "setting termios - ");
cflag = tty->termios->c_cflag;
@@ -2124,7 +2082,7 @@ static void mos7840_set_termios(struct tty_struct *tty,
mos7840_change_port_settings(tty, mos7840_port, old_termios);
if (!mos7840_port->read_urb) {
- dbg("%s", "URB KILLED !!!!!\n");
+ dbg("%s", "URB KILLED !!!!!");
return;
}
@@ -2190,7 +2148,7 @@ static int mos7840_set_modem_info(struct moschip_port *mos7840_port,
port = (struct usb_serial_port *)mos7840_port->port;
if (mos7840_port_paranoia_check(port, __func__)) {
- dbg("%s", "Invalid port \n");
+ dbg("%s", "Invalid port");
return -1;
}
@@ -2235,7 +2193,7 @@ static int mos7840_set_modem_info(struct moschip_port *mos7840_port,
status = mos7840_set_uart_reg(port, MODEM_CONTROL_REGISTER, Data);
unlock_kernel();
if (status < 0) {
- dbg("setting MODEM_CONTROL_REGISTER Failed\n");
+ dbg("setting MODEM_CONTROL_REGISTER Failed");
return -1;
}
@@ -2320,7 +2278,7 @@ static int mos7840_ioctl(struct tty_struct *tty, struct file *file,
int mosret = 0;
if (mos7840_port_paranoia_check(port, __func__)) {
- dbg("%s", "Invalid port \n");
+ dbg("%s", "Invalid port");
return -1;
}
@@ -2420,9 +2378,8 @@ static int mos7840_calc_num_ports(struct usb_serial *serial)
{
int mos7840_num_ports = 0;
- dbg("numberofendpoints: %d \n",
- (int)serial->interface->cur_altsetting->desc.bNumEndpoints);
- dbg("numberofendpoints: %d \n",
+ 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;
@@ -2431,7 +2388,7 @@ static int mos7840_calc_num_ports(struct usb_serial *serial)
serial->num_bulk_out = 4;
mos7840_num_ports = serial->num_ports = 4;
}
-
+ dbg ("mos7840_num_ports = %d", mos7840_num_ports);
return mos7840_num_ports;
}
@@ -2446,22 +2403,24 @@ static int mos7840_startup(struct usb_serial *serial)
int i, status;
__u16 Data;
- dbg("%s \n", " mos7840_startup :entering..........");
+ dbg("%s", "mos7840_startup :Entering..........");
if (!serial) {
- dbg("%s\n", "Invalid Handler");
+ dbg("%s", "Invalid Handler");
return -1;
}
dev = serial->dev;
- dbg("%s\n", "Entering...");
+ dbg("%s", "Entering...");
+ dbg ("mos7840_startup: serial = %p", serial);
/* we set up the pointers to the endpoints in the mos7840_open *
* function, as the structures aren't created yet. */
/* set up port private structures */
for (i = 0; i < serial->num_ports; ++i) {
+ dbg ("mos7840_startup: configuring port %d............", i);
mos7840_port = kzalloc(sizeof(struct moschip_port), GFP_KERNEL);
if (mos7840_port == NULL) {
dev_err(&dev->dev, "%s - Out of memory\n", __func__);
@@ -2519,10 +2478,10 @@ static int mos7840_startup(struct usb_serial *serial)
status = mos7840_get_reg_sync(serial->port[i],
mos7840_port->ControlRegOffset, &Data);
if (status < 0) {
- dbg("Reading ControlReg failed status-0x%x\n", status);
+ dbg("Reading ControlReg failed status-0x%x", status);
break;
} else
- dbg("ControlReg Reading success val is %x, status%d\n",
+ dbg("ControlReg Reading success val is %x, status%d",
Data, status);
Data |= 0x08; /* setting driver done bit */
Data |= 0x04; /* sp1_bit to have cts change reflect in
@@ -2532,10 +2491,10 @@ static int mos7840_startup(struct usb_serial *serial)
status = mos7840_set_reg_sync(serial->port[i],
mos7840_port->ControlRegOffset, Data);
if (status < 0) {
- dbg("Writing ControlReg failed(rx_disable) status-0x%x\n", status);
+ dbg("Writing ControlReg failed(rx_disable) status-0x%x", status);
break;
} else
- dbg("ControlReg Writing success(rx_disable) status%d\n",
+ dbg("ControlReg Writing success(rx_disable) status%d",
status);
/* Write default values in DCR (i.e 0x01 in DCR0, 0x05 in DCR2
@@ -2544,48 +2503,48 @@ static int mos7840_startup(struct usb_serial *serial)
status = mos7840_set_reg_sync(serial->port[i],
(__u16) (mos7840_port->DcrRegOffset + 0), Data);
if (status < 0) {
- dbg("Writing DCR0 failed status-0x%x\n", status);
+ dbg("Writing DCR0 failed status-0x%x", status);
break;
} else
- dbg("DCR0 Writing success status%d\n", status);
+ dbg("DCR0 Writing success status%d", status);
Data = 0x05;
status = mos7840_set_reg_sync(serial->port[i],
(__u16) (mos7840_port->DcrRegOffset + 1), Data);
if (status < 0) {
- dbg("Writing DCR1 failed status-0x%x\n", status);
+ dbg("Writing DCR1 failed status-0x%x", status);
break;
} else
- dbg("DCR1 Writing success status%d\n", status);
+ dbg("DCR1 Writing success status%d", status);
Data = 0x24;
status = mos7840_set_reg_sync(serial->port[i],
(__u16) (mos7840_port->DcrRegOffset + 2), Data);
if (status < 0) {
- dbg("Writing DCR2 failed status-0x%x\n", status);
+ dbg("Writing DCR2 failed status-0x%x", status);
break;
} else
- dbg("DCR2 Writing success status%d\n", status);
+ dbg("DCR2 Writing success status%d", status);
/* write values in clkstart0x0 and clkmulti 0x20 */
Data = 0x0;
status = mos7840_set_reg_sync(serial->port[i],
CLK_START_VALUE_REGISTER, Data);
if (status < 0) {
- dbg("Writing CLK_START_VALUE_REGISTER failed status-0x%x\n", status);
+ dbg("Writing CLK_START_VALUE_REGISTER failed status-0x%x", status);
break;
} else
- dbg("CLK_START_VALUE_REGISTER Writing success status%d\n", status);
+ dbg("CLK_START_VALUE_REGISTER Writing success status%d", status);
Data = 0x20;
status = mos7840_set_reg_sync(serial->port[i],
CLK_MULTI_REGISTER, Data);
if (status < 0) {
- dbg("Writing CLK_MULTI_REGISTER failed status-0x%x\n",
+ dbg("Writing CLK_MULTI_REGISTER failed status-0x%x",
status);
goto error;
} else
- dbg("CLK_MULTI_REGISTER Writing success status%d\n",
+ dbg("CLK_MULTI_REGISTER Writing success status%d",
status);
/* write value 0x0 to scratchpad register */
@@ -2593,11 +2552,11 @@ static int mos7840_startup(struct usb_serial *serial)
status = mos7840_set_uart_reg(serial->port[i],
SCRATCH_PAD_REGISTER, Data);
if (status < 0) {
- dbg("Writing SCRATCH_PAD_REGISTER failed status-0x%x\n",
+ dbg("Writing SCRATCH_PAD_REGISTER failed status-0x%x",
status);
break;
} else
- dbg("SCRATCH_PAD_REGISTER Writing success status%d\n",
+ dbg("SCRATCH_PAD_REGISTER Writing success status%d",
status);
/* Zero Length flag register */
@@ -2608,30 +2567,30 @@ static int mos7840_startup(struct usb_serial *serial)
status = mos7840_set_reg_sync(serial->port[i],
(__u16) (ZLP_REG1 +
((__u16)mos7840_port->port_num)), Data);
- dbg("ZLIP offset%x\n",
+ dbg("ZLIP offset %x",
(__u16) (ZLP_REG1 +
((__u16) mos7840_port->port_num)));
if (status < 0) {
- dbg("Writing ZLP_REG%d failed status-0x%x\n",
+ dbg("Writing ZLP_REG%d failed status-0x%x",
i + 2, status);
break;
} else
- dbg("ZLP_REG%d Writing success status%d\n",
+ dbg("ZLP_REG%d Writing success status%d",
i + 2, status);
} else {
Data = 0xff;
status = mos7840_set_reg_sync(serial->port[i],
(__u16) (ZLP_REG1 +
((__u16)mos7840_port->port_num) - 0x1), Data);
- dbg("ZLIP offset%x\n",
+ dbg("ZLIP offset %x",
(__u16) (ZLP_REG1 +
((__u16) mos7840_port->port_num) - 0x1));
if (status < 0) {
- dbg("Writing ZLP_REG%d failed status-0x%x\n",
+ dbg("Writing ZLP_REG%d failed status-0x%x",
i + 1, status);
break;
} else
- dbg("ZLP_REG%d Writing success status%d\n",
+ dbg("ZLP_REG%d Writing success status%d",
i + 1, status);
}
@@ -2645,15 +2604,16 @@ static int mos7840_startup(struct usb_serial *serial)
goto error;
}
}
+ dbg ("mos7840_startup: all ports configured...........");
/* Zero Length flag enable */
Data = 0x0f;
status = mos7840_set_reg_sync(serial->port[0], ZLP_REG5, Data);
if (status < 0) {
- dbg("Writing ZLP_REG5 failed status-0x%x\n", status);
+ dbg("Writing ZLP_REG5 failed status-0x%x", status);
goto error;
} else
- dbg("ZLP_REG5 Writing success status%d\n", status);
+ dbg("ZLP_REG5 Writing success status%d", status);
/* setting configuration feature to one */
usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
@@ -2673,19 +2633,19 @@ error:
}
/****************************************************************************
- * mos7840_shutdown
+ * mos7840_disconnect
* This function is called whenever the device is removed from the usb bus.
****************************************************************************/
-static void mos7840_shutdown(struct usb_serial *serial)
+static void mos7840_disconnect(struct usb_serial *serial)
{
int i;
unsigned long flags;
struct moschip_port *mos7840_port;
- dbg("%s \n", " shutdown :entering..........");
+ dbg("%s", " disconnect :entering..........");
if (!serial) {
- dbg("%s", "Invalid Handler \n");
+ dbg("%s", "Invalid Handler");
return;
}
@@ -2702,14 +2662,45 @@ static void mos7840_shutdown(struct usb_serial *serial)
mos7840_port->zombie = 1;
spin_unlock_irqrestore(&mos7840_port->pool_lock, flags);
usb_kill_urb(mos7840_port->control_urb);
+ }
+ }
+
+ dbg("%s", "Thank u :: ");
+
+}
+
+/****************************************************************************
+ * mos7840_release
+ * This function is called when the usb_serial structure is freed.
+ ****************************************************************************/
+
+static void mos7840_release(struct usb_serial *serial)
+{
+ int i;
+ struct moschip_port *mos7840_port;
+ dbg("%s", " release :entering..........");
+
+ if (!serial) {
+ dbg("%s", "Invalid Handler");
+ return;
+ }
+
+ /* check for the ports to be closed,close the ports and disconnect */
+
+ /* free private structure allocated for serial port *
+ * stop reads and writes on all ports */
+
+ for (i = 0; i < serial->num_ports; ++i) {
+ mos7840_port = mos7840_get_port_private(serial->port[i]);
+ dbg("mos7840_port %d = %p", i, mos7840_port);
+ if (mos7840_port) {
kfree(mos7840_port->ctrl_buf);
kfree(mos7840_port->dr);
kfree(mos7840_port);
}
- mos7840_set_port_private(serial->port[i], NULL);
}
- dbg("%s\n", "Thank u :: ");
+ dbg("%s", "Thank u :: ");
}
@@ -2747,7 +2738,8 @@ static struct usb_serial_driver moschip7840_4port_device = {
.tiocmget = mos7840_tiocmget,
.tiocmset = mos7840_tiocmset,
.attach = mos7840_startup,
- .shutdown = mos7840_shutdown,
+ .disconnect = mos7840_disconnect,
+ .release = mos7840_release,
.read_bulk_callback = mos7840_bulk_in_callback,
.read_int_callback = mos7840_interrupt_callback,
};
@@ -2760,7 +2752,7 @@ static int __init moschip7840_init(void)
{
int retval;
- dbg("%s \n", " mos7840_init :entering..........");
+ dbg("%s", " mos7840_init :entering..........");
/* Register with the usb serial */
retval = usb_serial_register(&moschip7840_4port_device);
@@ -2768,14 +2760,14 @@ static int __init moschip7840_init(void)
if (retval)
goto failed_port_device_register;
- dbg("%s\n", "Entring...");
+ 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\n", "Leaving...");
+ dbg("%s", "Leaving...");
return 0;
}
usb_serial_deregister(&moschip7840_4port_device);
@@ -2790,13 +2782,13 @@ failed_port_device_register:
static void __exit moschip7840_exit(void)
{
- dbg("%s \n", " mos7840_exit :entering..........");
+ dbg("%s", " mos7840_exit :entering..........");
usb_deregister(&io_driver);
usb_serial_deregister(&moschip7840_4port_device);
- dbg("%s\n", "Entring...");
+ dbg("%s", "Entering...");
}
module_init(moschip7840_init);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-21 12:05:28 +0100