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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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[PATCH] Option Card driver update, Maintainer entry
This patch updates the Option Card driver: - remove a deadlock - add sponsor notice - add new card - renamed the device to what's usually printed on it - removed some dead code - clean up a bunch of irregular whitespace (end-of-line, tabs) Also add a MAINTAINERS entry for the Option Card driver. Signed-Off-By: Matthias Urlichs <smurf@smurf.noris.de> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Matthias Urlichs
Linus Torvalds
parent
98848fa83b
commit
ba460e4806
@ -2420,6 +2420,12 @@ L: linux-usb-users@lists.sourceforge.net
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L: linux-usb-devel@lists.sourceforge.net
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S: Maintained
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USB OPTION-CARD DRIVER
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P: Matthias Urlichs
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M: smurf@smurf.noris.de
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L: linux-usb-devel@lists.sourceforge.net
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S: Maintained
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USB OV511 DRIVER
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P: Mark McClelland
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M: mmcclell@bigfoot.com
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@ -12,14 +12,25 @@
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History:
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2005-05-19 v0.1 Initial version, based on incomplete docs
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and analysis of misbehavior of the standard driver
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and analysis of misbehavior with the standard driver
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2005-05-20 v0.2 Extended the input buffer to avoid losing
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random 64-byte chunks of data
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2005-05-21 v0.3 implemented chars_in_buffer()
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turned on low_latency
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simplified the code somewhat
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2005-05-24 v0.4 option_write() sometimes deadlocked under heavy load
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removed some dead code
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added sponsor notice
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coding style clean-up
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2005-06-20 v0.4.1 add missing braces :-/
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killed end-of-line whitespace
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2005-07-15 v0.4.2 rename WLAN product to FUSION, add FUSION2
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Work sponsored by: Sigos GmbH, Germany <info@sigos.de>
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*/
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#define DRIVER_VERSION "v0.3"
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#define DRIVER_VERSION "v0.4"
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#define DRIVER_AUTHOR "Matthias Urlichs <smurf@smurf.noris.de>"
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#define DRIVER_DESC "Option Card (PC-Card to) USB to Serial Driver"
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@ -44,7 +55,6 @@ static int option_write_room (struct usb_serial_port *port);
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static void option_instat_callback(struct urb *urb, struct pt_regs *regs);
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static int option_write (struct usb_serial_port *port,
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const unsigned char *buf, int count);
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@ -60,14 +70,17 @@ static int option_tiocmset (struct usb_serial_port *port, struct file *file,
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static int option_send_setup (struct usb_serial_port *port);
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/* Vendor and product IDs */
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#define OPTION_VENDOR_ID 0x0AF0
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#define OPTION_VENDOR_ID 0x0AF0
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#define OPTION_PRODUCT_OLD 0x5000
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#define OPTION_PRODUCT_FUSION 0x6000
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#define OPTION_PRODUCT_FUSION2 0x6300
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#define OPTION_PRODUCT_OLD 0x5000
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#define OPTION_PRODUCT_WLAN 0x6000
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static struct usb_device_id option_ids[] = {
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{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_OLD) },
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{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_WLAN) },
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{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUSION) },
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{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUSION2) },
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{ } /* Terminating entry */
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};
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@ -85,58 +98,62 @@ static struct usb_driver option_driver = {
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* recognizes separately, thus num_port=1.
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*/
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static struct usb_serial_device_type option_3port_device = {
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.owner = THIS_MODULE,
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.name = "Option 3-port card",
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.short_name = "option",
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.id_table = option_ids,
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.num_interrupt_in = NUM_DONT_CARE,
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.num_bulk_in = NUM_DONT_CARE,
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.num_bulk_out = NUM_DONT_CARE,
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.num_ports = 1, /* 3 */
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.open = option_open,
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.close = option_close,
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.write = option_write,
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.write_room = option_write_room,
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.chars_in_buffer = option_chars_in_buffer,
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.throttle = option_rx_throttle,
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.unthrottle = option_rx_unthrottle,
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.ioctl = option_ioctl,
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.set_termios = option_set_termios,
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.break_ctl = option_break_ctl,
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.tiocmget = option_tiocmget,
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.tiocmset = option_tiocmset,
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.attach = option_startup,
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.shutdown = option_shutdown,
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.read_int_callback = option_instat_callback,
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.owner = THIS_MODULE,
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.name = "Option 3G data card",
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.short_name = "option",
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.id_table = option_ids,
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.num_interrupt_in = NUM_DONT_CARE,
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.num_bulk_in = NUM_DONT_CARE,
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.num_bulk_out = NUM_DONT_CARE,
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.num_ports = 1, /* 3, but the card reports its ports separately */
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.open = option_open,
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.close = option_close,
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.write = option_write,
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.write_room = option_write_room,
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.chars_in_buffer = option_chars_in_buffer,
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.throttle = option_rx_throttle,
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.unthrottle = option_rx_unthrottle,
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.ioctl = option_ioctl,
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.set_termios = option_set_termios,
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.break_ctl = option_break_ctl,
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.tiocmget = option_tiocmget,
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.tiocmset = option_tiocmset,
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.attach = option_startup,
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.shutdown = option_shutdown,
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.read_int_callback = option_instat_callback,
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};
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#ifdef CONFIG_USB_DEBUG
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static int debug;
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#else
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#define debug 0
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#endif
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/* per port private data */
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#define N_IN_URB 4
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#define N_OUT_URB 1
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#define IN_BUFLEN 1024
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#define OUT_BUFLEN 1024
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#define N_IN_URB 4
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#define N_OUT_URB 1
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#define IN_BUFLEN 1024
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#define OUT_BUFLEN 128
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struct option_port_private {
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/* Input endpoints and buffer for this port */
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struct urb *in_urbs[N_IN_URB];
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char in_buffer[N_IN_URB][IN_BUFLEN];
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struct urb *in_urbs[N_IN_URB];
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char in_buffer[N_IN_URB][IN_BUFLEN];
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/* Output endpoints and buffer for this port */
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struct urb *out_urbs[N_OUT_URB];
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char out_buffer[N_OUT_URB][OUT_BUFLEN];
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struct urb *out_urbs[N_OUT_URB];
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char out_buffer[N_OUT_URB][OUT_BUFLEN];
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/* Settings for the port */
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int rts_state; /* Handshaking pins (outputs) */
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int dtr_state;
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int cts_state; /* Handshaking pins (inputs) */
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int dsr_state;
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int dcd_state;
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int ri_state;
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// int break_on;
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int rts_state; /* Handshaking pins (outputs) */
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int dtr_state;
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int cts_state; /* Handshaking pins (inputs) */
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int dsr_state;
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int dcd_state;
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int ri_state;
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unsigned long tx_start_time[N_OUT_URB];
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unsigned long tx_start_time[N_OUT_URB];
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};
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@ -190,13 +207,13 @@ static void
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option_break_ctl (struct usb_serial_port *port, int break_state)
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{
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/* Unfortunately, I don't know how to send a break */
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dbg("%s", __FUNCTION__);
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dbg("%s", __FUNCTION__);
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}
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static void
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option_set_termios (struct usb_serial_port *port,
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struct termios *old_termios)
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struct termios *old_termios)
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{
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dbg("%s", __FUNCTION__);
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@ -204,10 +221,10 @@ option_set_termios (struct usb_serial_port *port,
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}
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static int
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option_tiocmget(struct usb_serial_port *port, struct file *file)
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option_tiocmget (struct usb_serial_port *port, struct file *file)
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{
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unsigned int value;
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struct option_port_private *portdata;
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unsigned int value;
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struct option_port_private *portdata;
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portdata = usb_get_serial_port_data(port);
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@ -225,7 +242,7 @@ static int
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option_tiocmset (struct usb_serial_port *port, struct file *file,
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unsigned int set, unsigned int clear)
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{
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struct option_port_private *portdata;
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struct option_port_private *portdata;
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portdata = usb_get_serial_port_data(port);
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@ -250,71 +267,50 @@ option_ioctl (struct usb_serial_port *port, struct file *file,
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/* Write */
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static int
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option_write(struct usb_serial_port *port,
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const unsigned char *buf, int count)
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option_write (struct usb_serial_port *port,
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const unsigned char *buf, int count)
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{
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struct option_port_private *portdata;
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int i;
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int left, todo;
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struct urb *this_urb = NULL; /* spurious */
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int err;
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struct option_port_private *portdata;
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int i;
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int left, todo;
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struct urb *this_urb = NULL; /* spurious */
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int err;
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portdata = usb_get_serial_port_data(port);
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dbg("%s: write (%d chars)", __FUNCTION__, count);
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#if 0
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spin_lock(&port->lock);
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if (port->write_urb_busy) {
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spin_unlock(&port->lock);
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dbg("%s: already writing", __FUNCTION__);
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return 0;
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}
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port->write_urb_busy = 1;
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spin_unlock(&port->lock);
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#endif
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i = 0;
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left = count;
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while (left>0) {
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for (i=0; left > 0 && i < N_OUT_URB; i++) {
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todo = left;
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if (todo > OUT_BUFLEN)
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todo = OUT_BUFLEN;
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for (;i < N_OUT_URB; i++) {
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/* Check we have a valid urb/endpoint before we use it... */
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this_urb = portdata->out_urbs[i];
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if (this_urb->status != -EINPROGRESS)
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break;
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this_urb = portdata->out_urbs[i];
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if (this_urb->status == -EINPROGRESS) {
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if (this_urb->transfer_flags & URB_ASYNC_UNLINK)
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continue;
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if (time_before(jiffies, portdata->tx_start_time[i] + 10 * HZ))
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continue;
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this_urb->transfer_flags |= URB_ASYNC_UNLINK;
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usb_unlink_urb(this_urb);
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continue;
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}
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if (i == N_OUT_URB) {
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/* no bulk out free! */
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dbg("%s: no output urb -- left %d", __FUNCTION__,count-left);
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#if 0
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port->write_urb_busy = 0;
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#endif
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return count-left;
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}
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if (this_urb->status != 0)
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dbg("usb_write %p failed (err=%d)", this_urb, this_urb->status);
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dbg("%s: endpoint %d buf %d", __FUNCTION__, usb_pipeendpoint(this_urb->pipe), i);
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/* send the data */
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memcpy (this_urb->transfer_buffer, buf, todo);
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/* send the data out the bulk port */
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this_urb->transfer_buffer_length = todo;
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this_urb->transfer_flags &= ~URB_ASYNC_UNLINK;
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this_urb->dev = port->serial->dev;
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err = usb_submit_urb(this_urb, GFP_ATOMIC);
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if (err) {
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dbg("usb_submit_urb %p (write bulk) failed (%d,, has %d)", this_urb, err, this_urb->status);
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dbg("usb_submit_urb %p (write bulk) failed (%d, has %d)", this_urb, err, this_urb->status);
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continue;
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}
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portdata->tx_start_time[i] = jiffies;
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@ -323,9 +319,6 @@ option_write(struct usb_serial_port *port,
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}
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count -= left;
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#if 0
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port->write_urb_busy = 0;
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#endif
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dbg("%s: wrote (did %d)", __FUNCTION__, count);
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return count;
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}
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@ -333,7 +326,7 @@ option_write(struct usb_serial_port *port,
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static void
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option_indat_callback (struct urb *urb, struct pt_regs *regs)
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{
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int i, err;
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int i, err;
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int endpoint;
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struct usb_serial_port *port;
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struct tty_struct *tty;
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@ -444,10 +437,11 @@ option_write_room (struct usb_serial_port *port)
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portdata = usb_get_serial_port_data(port);
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for (i=0; i < N_OUT_URB; i++)
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for (i=0; i < N_OUT_URB; i++) {
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this_urb = portdata->out_urbs[i];
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if (this_urb && this_urb->status != -EINPROGRESS)
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data_len += OUT_BUFLEN;
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}
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dbg("%s: %d", __FUNCTION__, data_len);
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return data_len;
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@ -464,11 +458,11 @@ option_chars_in_buffer (struct usb_serial_port *port)
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portdata = usb_get_serial_port_data(port);
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for (i=0; i < N_OUT_URB; i++)
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for (i=0; i < N_OUT_URB; i++) {
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this_urb = portdata->out_urbs[i];
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if (this_urb && this_urb->status == -EINPROGRESS)
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data_len += this_urb->transfer_buffer_length;
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}
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dbg("%s: %d", __FUNCTION__, data_len);
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return data_len;
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}
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@ -477,10 +471,10 @@ option_chars_in_buffer (struct usb_serial_port *port)
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static int
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option_open (struct usb_serial_port *port, struct file *filp)
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{
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struct option_port_private *portdata;
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struct usb_serial *serial = port->serial;
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int i, err;
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struct urb *urb;
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struct option_port_private *portdata;
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struct usb_serial *serial = port->serial;
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int i, err;
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struct urb *urb;
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portdata = usb_get_serial_port_data(port);
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@ -528,7 +522,7 @@ option_open (struct usb_serial_port *port, struct file *filp)
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}
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static inline void
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stop_urb(struct urb *urb)
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stop_urb (struct urb *urb)
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{
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if (urb && urb->status == -EINPROGRESS) {
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urb->transfer_flags &= ~URB_ASYNC_UNLINK;
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@ -537,11 +531,11 @@ stop_urb(struct urb *urb)
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}
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static void
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option_close(struct usb_serial_port *port, struct file *filp)
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option_close (struct usb_serial_port *port, struct file *filp)
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{
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int i;
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struct usb_serial *serial = port->serial;
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struct option_port_private *portdata;
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int i;
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struct usb_serial *serial = port->serial;
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struct option_port_private *portdata;
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dbg("%s", __FUNCTION__);
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portdata = usb_get_serial_port_data(port);
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@ -589,11 +583,11 @@ option_setup_urb (struct usb_serial *serial, int endpoint,
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/* Setup urbs */
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static void
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option_setup_urbs(struct usb_serial *serial)
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option_setup_urbs (struct usb_serial *serial)
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{
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int j;
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struct usb_serial_port *port;
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struct option_port_private *portdata;
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int j;
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struct usb_serial_port *port;
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struct option_port_private *portdata;
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dbg("%s", __FUNCTION__);
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@ -617,7 +611,7 @@ option_setup_urbs(struct usb_serial *serial)
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static int
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option_send_setup(struct usb_serial_port *port)
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option_send_setup (struct usb_serial_port *port)
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{
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struct usb_serial *serial = port->serial;
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struct option_port_private *portdata;
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@ -644,9 +638,9 @@ option_send_setup(struct usb_serial_port *port)
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static int
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option_startup (struct usb_serial *serial)
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{
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int i, err;
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struct usb_serial_port *port;
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struct option_port_private *portdata;
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int i, err;
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struct usb_serial_port *port;
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struct option_port_private *portdata;
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dbg("%s", __FUNCTION__);
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@ -677,9 +671,9 @@ option_startup (struct usb_serial *serial)
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static void
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option_shutdown (struct usb_serial *serial)
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{
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int i, j;
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struct usb_serial_port *port;
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struct option_port_private *portdata;
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int i, j;
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struct usb_serial_port *port;
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struct option_port_private *portdata;
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dbg("%s", __FUNCTION__);
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@ -724,6 +718,8 @@ MODULE_DESCRIPTION(DRIVER_DESC);
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MODULE_VERSION(DRIVER_VERSION);
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MODULE_LICENSE("GPL");
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#ifdef CONFIG_USB_DEBUG
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module_param(debug, bool, S_IRUGO | S_IWUSR);
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MODULE_PARM_DESC(debug, "Debug messages");
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#endif
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