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USB-serial updates for 5.15-rc1 

Here are the USB serial updates for 5.15-rc1, including:
 
  - a couple of fixes for cp210x termios error handling
  - retrieval of fw revisions for more cp210x types
  - a switch to octal permissions for all module-parameter definitions
 
 Included are also various clean ups.
 
 All have been in linux-next with no reported issues.
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Merge tag 'usb-serial-5.15-rc1-2' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next

Johan writes:

USB-serial updates for 5.15-rc1

Here are the USB serial updates for 5.15-rc1, including:

 - a couple of fixes for cp210x termios error handling
 - retrieval of fw revisions for more cp210x types
 - a switch to octal permissions for all module-parameter definitions

Included are also various clean ups.

All have been in linux-next with no reported issues.

* tag 'usb-serial-5.15-rc1-2' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial:
  USB: serial: replace symbolic permissions by octal permissions
  USB: serial: cp210x: determine fw version for CP2105 and CP2108
  USB: serial: cp210x: clean up type detection
  USB: serial: cp210x: clean up set-chars request
  USB: serial: cp210x: clean up control-request timeout
  USB: serial: cp210x: fix flow-control error handling
  USB: serial: cp210x: fix control-characters error handling
  USB: serial: io_edgeport: drop unused descriptor helper
This commit is contained in:
Greg Kroah-Hartman 2021-09-01 20:10:40 +02:00
parent 835d31d319 a65ab973c1
commit 2037e5d6fb
9 changed files with 47 additions and 93 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

77
drivers/usb/serial/cp210x.c
View File

@ -400,6 +400,7 @@ struct cp210x_special_chars {
};
/* CP210X_VENDOR_SPECIFIC values */
#define CP210X_GET_FW_VER 0x000E
#define CP210X_READ_2NCONFIG 0x000E
#define CP210X_GET_FW_VER_2N 0x0010
#define CP210X_READ_LATCH 0x00C2
@ -638,7 +639,7 @@ static int cp210x_read_reg_block(struct usb_serial_port *port, u8 req,
result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
req, REQTYPE_INTERFACE_TO_HOST, 0,
port_priv->bInterfaceNumber, dmabuf, bufsize,
USB_CTRL_SET_TIMEOUT);
USB_CTRL_GET_TIMEOUT);
if (result == bufsize) {
memcpy(buf, dmabuf, bufsize);
result = 0;
@ -1145,33 +1146,6 @@ static void cp210x_disable_event_mode(struct usb_serial_port *port)
port_priv->event_mode = false;
}
static int cp210x_set_chars(struct usb_serial_port *port,
struct cp210x_special_chars *chars)
{
struct cp210x_port_private *port_priv = usb_get_serial_port_data(port);
struct usb_serial *serial = port->serial;
void *dmabuf;
int result;
dmabuf = kmemdup(chars, sizeof(*chars), GFP_KERNEL);
if (!dmabuf)
return -ENOMEM;
result = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
CP210X_SET_CHARS, REQTYPE_HOST_TO_INTERFACE, 0,
port_priv->bInterfaceNumber,
dmabuf, sizeof(*chars), USB_CTRL_SET_TIMEOUT);
kfree(dmabuf);
if (result < 0) {
dev_err(&port->dev, "failed to set special chars: %d\n", result);
return result;
}
return 0;
}
static bool cp210x_termios_change(const struct ktermios *a, const struct ktermios *b)
{
bool iflag_change, cc_change;
@ -1192,6 +1166,7 @@ static void cp210x_set_flow_control(struct tty_struct *tty,
struct cp210x_flow_ctl flow_ctl;
u32 flow_repl;
u32 ctl_hs;
bool crtscts;
int ret;
/*
@ -1218,9 +1193,12 @@ static void cp210x_set_flow_control(struct tty_struct *tty,
chars.bXonChar = START_CHAR(tty);
chars.bXoffChar = STOP_CHAR(tty);
ret = cp210x_set_chars(port, &chars);
if (ret)
return;
ret = cp210x_write_reg_block(port, CP210X_SET_CHARS, &chars,
sizeof(chars));
if (ret) {
dev_err(&port->dev, "failed to set special chars: %d\n",
ret);
}
}
mutex_lock(&port_priv->mutex);
@ -1249,14 +1227,14 @@ static void cp210x_set_flow_control(struct tty_struct *tty,
flow_repl |= CP210X_SERIAL_RTS_FLOW_CTL;
else
flow_repl |= CP210X_SERIAL_RTS_INACTIVE;
port_priv->crtscts = true;
crtscts = true;
} else {
ctl_hs &= ~CP210X_SERIAL_CTS_HANDSHAKE;
if (port_priv->rts)
flow_repl |= CP210X_SERIAL_RTS_ACTIVE;
else
flow_repl |= CP210X_SERIAL_RTS_INACTIVE;
port_priv->crtscts = false;
crtscts = false;
}
if (I_IXOFF(tty)) {
@ -1279,8 +1257,12 @@ static void cp210x_set_flow_control(struct tty_struct *tty,
flow_ctl.ulControlHandshake = cpu_to_le32(ctl_hs);
flow_ctl.ulFlowReplace = cpu_to_le32(flow_repl);
cp210x_write_reg_block(port, CP210X_SET_FLOW, &flow_ctl,
ret = cp210x_write_reg_block(port, CP210X_SET_FLOW, &flow_ctl,
sizeof(flow_ctl));
if (ret)
goto out_unlock;
port_priv->crtscts = crtscts;
out_unlock:
mutex_unlock(&port_priv->mutex);
}
@ -2111,12 +2093,26 @@ static int cp210x_get_fw_version(struct usb_serial *serial, u16 value)
return 0;
}
static void cp210x_determine_quirks(struct usb_serial *serial)
static void cp210x_determine_type(struct usb_serial *serial)
{
struct cp210x_serial_private *priv = usb_get_serial_data(serial);
int ret;
ret = cp210x_read_vendor_block(serial, REQTYPE_DEVICE_TO_HOST,
CP210X_GET_PARTNUM, &priv->partnum,
sizeof(priv->partnum));
if (ret < 0) {
dev_warn(&serial->interface->dev,
"querying part number failed\n");
priv->partnum = CP210X_PARTNUM_UNKNOWN;
return;
}
switch (priv->partnum) {
case CP210X_PARTNUM_CP2105:
case CP210X_PARTNUM_CP2108:
cp210x_get_fw_version(serial, CP210X_GET_FW_VER);
break;
case CP210X_PARTNUM_CP2102N_QFN28:
case CP210X_PARTNUM_CP2102N_QFN24:
case CP210X_PARTNUM_CP2102N_QFN20:
@ -2140,18 +2136,9 @@ static int cp210x_attach(struct usb_serial *serial)
if (!priv)
return -ENOMEM;
result = cp210x_read_vendor_block(serial, REQTYPE_DEVICE_TO_HOST,
CP210X_GET_PARTNUM, &priv->partnum,
sizeof(priv->partnum));
if (result < 0) {
dev_warn(&serial->interface->dev,
"querying part number failed\n");
priv->partnum = CP210X_PARTNUM_UNKNOWN;
}
usb_set_serial_data(serial, priv);
cp210x_determine_quirks(serial);
cp210x_determine_type(serial);
cp210x_init_max_speed(serial);
result = cp210x_gpio_init(serial);

6
drivers/usb/serial/cypress_m8.c
View File

@ -1199,9 +1199,9 @@ MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
module_param(stats, bool, S_IRUGO | S_IWUSR);
module_param(stats, bool, 0644);
MODULE_PARM_DESC(stats, "Enable statistics or not");
module_param(interval, int, S_IRUGO | S_IWUSR);
module_param(interval, int, 0644);
MODULE_PARM_DESC(interval, "Overrides interrupt interval");
module_param(unstable_bauds, bool, S_IRUGO | S_IWUSR);
module_param(unstable_bauds, bool, 0644);
MODULE_PARM_DESC(unstable_bauds, "Allow unstable baud rates");

2
drivers/usb/serial/ftdi_sio.c
View File

@ -2938,5 +2938,5 @@ MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
module_param(ndi_latency_timer, int, S_IRUGO | S_IWUSR);
module_param(ndi_latency_timer, int, 0644);
MODULE_PARM_DESC(ndi_latency_timer, "NDI device latency timer override");

2
drivers/usb/serial/garmin_gps.c
View File

@ -1444,5 +1444,5 @@ MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
module_param(initial_mode, int, S_IRUGO);
module_param(initial_mode, int, 0444);
MODULE_PARM_DESC(initial_mode, "Initial mode");

33
drivers/usb/serial/io_edgeport.c
View File

@ -389,39 +389,6 @@ static void update_edgeport_E2PROM(struct edgeport_serial *edge_serial)
release_firmware(fw);
}
#if 0
/************************************************************************
*
* Get string descriptor from device
*
************************************************************************/
static int get_string_desc(struct usb_device *dev, int Id,
struct usb_string_descriptor **pRetDesc)
{
struct usb_string_descriptor StringDesc;
struct usb_string_descriptor *pStringDesc;
dev_dbg(&dev->dev, "%s - USB String ID = %d\n", __func__, Id);
if (!usb_get_descriptor(dev, USB_DT_STRING, Id, &StringDesc,
sizeof(StringDesc)))
return 0;
pStringDesc = kmalloc(StringDesc.bLength, GFP_KERNEL);
if (!pStringDesc)
return -1;
if (!usb_get_descriptor(dev, USB_DT_STRING, Id, pStringDesc,
StringDesc.bLength)) {
kfree(pStringDesc);
return -1;
}
*pRetDesc = pStringDesc;
return 0;
}
#endif
static void dump_product_info(struct edgeport_serial *edge_serial,
struct edgeport_product_info *product_info)
{

4
drivers/usb/serial/io_ti.c
View File

@ -2746,9 +2746,9 @@ MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
MODULE_FIRMWARE("edgeport/down3.bin");
module_param(ignore_cpu_rev, bool, S_IRUGO | S_IWUSR);
module_param(ignore_cpu_rev, bool, 0644);
MODULE_PARM_DESC(ignore_cpu_rev,
"Ignore the cpu revision when connecting to a device");
module_param(default_uart_mode, int, S_IRUGO | S_IWUSR);
module_param(default_uart_mode, int, 0644);
MODULE_PARM_DESC(default_uart_mode, "Default uart_mode, 0=RS232, ...");

4
drivers/usb/serial/ipaq.c
View File

@ -599,10 +599,10 @@ MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
module_param(connect_retries, int, S_IRUGO|S_IWUSR);
module_param(connect_retries, int, 0644);
MODULE_PARM_DESC(connect_retries,
"Maximum number of connect retries (one second each)");
module_param(initial_wait, int, S_IRUGO|S_IWUSR);
module_param(initial_wait, int, 0644);
MODULE_PARM_DESC(initial_wait,
"Time to wait before attempting a connection (in seconds)");

10
drivers/usb/serial/iuu_phoenix.c
View File

@ -1188,20 +1188,20 @@ MODULE_AUTHOR("Alain Degreffe eczema@ecze.com");
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
module_param(xmas, bool, S_IRUGO | S_IWUSR);
module_param(xmas, bool, 0644);
MODULE_PARM_DESC(xmas, "Xmas colors enabled or not");
module_param(boost, int, S_IRUGO | S_IWUSR);
module_param(boost, int, 0644);
MODULE_PARM_DESC(boost, "Card overclock boost (in percent 100-500)");
module_param(clockmode, int, S_IRUGO | S_IWUSR);
module_param(clockmode, int, 0644);
MODULE_PARM_DESC(clockmode, "Card clock mode (1=3.579 MHz, 2=3.680 MHz, "
"3=6 Mhz)");
module_param(cdmode, int, S_IRUGO | S_IWUSR);
module_param(cdmode, int, 0644);
MODULE_PARM_DESC(cdmode, "Card detect mode (0=none, 1=CD, 2=!CD, 3=DSR, "
"4=!DSR, 5=CTS, 6=!CTS, 7=RING, 8=!RING)");
module_param(vcc_default, int, S_IRUGO | S_IWUSR);
module_param(vcc_default, int, 0644);
MODULE_PARM_DESC(vcc_default, "Set default VCC (either 3 for 3.3V or 5 "
"for 5V). Default to 5.");

2
drivers/usb/serial/sierra.c
View File

@ -1056,5 +1056,5 @@ MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL v2");
module_param(nmea, bool, S_IRUGO | S_IWUSR);
module_param(nmea, bool, 0644);
MODULE_PARM_DESC(nmea, "NMEA streaming");