diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-23 02:50:46 +0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-23 02:50:46 +0400 |
commit | a481991467d38afb43c3921d5b5b59ccb61b04ba (patch) | |
tree | a4b0b9a14da6fd5ef7b9b512bb32dbfcfcf2cd71 /drivers/usb/serial/whiteheat.c | |
parent | f6a26ae7699416d86bea8cb68ce413571e9cab3c (diff) | |
parent | cda4db53e9c28061c100400e1a4d273ea61dfba9 (diff) | |
download | linux-a481991467d38afb43c3921d5b5b59ccb61b04ba.tar.xz |
Merge tag 'usb-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB 3.5-rc1 changes from Greg Kroah-Hartman:
"Here is the big USB 3.5-rc1 pull request for the 3.5-rc1 merge window.
It's touches a lot of different parts of the kernel, all USB drivers,
due to some API cleanups (getting rid of the ancient err() macro) and
some changes that are needed for USB 3.0 power management updates.
There are also lots of new drivers, pimarily gadget, but others as
well. We deleted a staging driver, which was nice, and finally
dropped the obsolete usbfs code, which will make Al happy to never
have to touch that again.
There were some build errors in the tree that linux-next found a few
days ago, but those were fixed by the most recent changes (all were
due to us not building with CONFIG_PM disabled.)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'usb-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (477 commits)
xhci: Fix DIV_ROUND_UP compile error.
xhci: Fix compile with CONFIG_USB_SUSPEND=n
USB: Fix core compile with CONFIG_USB_SUSPEND=n
brcm80211: Fix compile error for .disable_hub_initiated_lpm.
Revert "USB: EHCI: work around bug in the Philips ISP1562 controller"
MAINTAINERS: Add myself as maintainer to the USB PHY Layer
USB: EHCI: fix command register configuration lost problem
USB: Remove races in devio.c
USB: ehci-platform: remove update_device
USB: Disable hub-initiated LPM for comms devices.
xhci: Add Intel U1/U2 timeout policy.
xhci: Add infrastructure for host-specific LPM policies.
USB: Add macros for interrupt endpoint types.
xhci: Reserve one command for USB3 LPM disable.
xhci: Some Evaluate Context commands must succeed.
USB: Disable USB 3.0 LPM in critical sections.
USB: Add support to enable/disable USB3 link states.
USB: Allow drivers to disable hub-initiated LPM.
USB: Calculate USB 3.0 exit latencies for LPM.
USB: Refactor code to set LPM support flag.
...
Conflicts:
arch/arm/mach-exynos/mach-nuri.c
arch/arm/mach-exynos/mach-universal_c210.c
drivers/net/wireless/ath/ath6kl/usb.c
Diffstat (limited to 'drivers/usb/serial/whiteheat.c')
-rw-r--r-- | drivers/usb/serial/whiteheat.c | 569 |
1 files changed, 11 insertions, 558 deletions
diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c index 407e23c87946..473635e7f5db 100644 --- a/drivers/usb/serial/whiteheat.c +++ b/drivers/usb/serial/whiteheat.c @@ -45,7 +45,6 @@ static bool debug; /* * Version Information */ -#define DRIVER_VERSION "v2.0" #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Stuart MacDonald <stuartm@connecttech.com>" #define DRIVER_DESC "USB ConnectTech WhiteHEAT driver" @@ -78,12 +77,6 @@ static const struct usb_device_id id_table_combined[] = { MODULE_DEVICE_TABLE(usb, id_table_combined); -static struct usb_driver whiteheat_driver = { - .name = "whiteheat", - .probe = usb_serial_probe, - .disconnect = usb_serial_disconnect, - .id_table = id_table_combined, -}; /* function prototypes for the Connect Tech WhiteHEAT prerenumeration device */ static int whiteheat_firmware_download(struct usb_serial *serial, @@ -96,10 +89,6 @@ static void whiteheat_release(struct usb_serial *serial); static int whiteheat_open(struct tty_struct *tty, struct usb_serial_port *port); static void whiteheat_close(struct usb_serial_port *port); -static int whiteheat_write(struct tty_struct *tty, - struct usb_serial_port *port, - const unsigned char *buf, int count); -static int whiteheat_write_room(struct tty_struct *tty); static int whiteheat_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg); static void whiteheat_set_termios(struct tty_struct *tty, @@ -108,11 +97,6 @@ static int whiteheat_tiocmget(struct tty_struct *tty); static int whiteheat_tiocmset(struct tty_struct *tty, unsigned int set, unsigned int clear); static void whiteheat_break_ctl(struct tty_struct *tty, int break_state); -static int whiteheat_chars_in_buffer(struct tty_struct *tty); -static void whiteheat_throttle(struct tty_struct *tty); -static void whiteheat_unthrottle(struct tty_struct *tty); -static void whiteheat_read_callback(struct urb *urb); -static void whiteheat_write_callback(struct urb *urb); static struct usb_serial_driver whiteheat_fake_device = { .driver = { @@ -138,18 +122,13 @@ static struct usb_serial_driver whiteheat_device = { .release = whiteheat_release, .open = whiteheat_open, .close = whiteheat_close, - .write = whiteheat_write, - .write_room = whiteheat_write_room, .ioctl = whiteheat_ioctl, .set_termios = whiteheat_set_termios, .break_ctl = whiteheat_break_ctl, .tiocmget = whiteheat_tiocmget, .tiocmset = whiteheat_tiocmset, - .chars_in_buffer = whiteheat_chars_in_buffer, - .throttle = whiteheat_throttle, - .unthrottle = whiteheat_unthrottle, - .read_bulk_callback = whiteheat_read_callback, - .write_bulk_callback = whiteheat_write_callback, + .throttle = usb_serial_generic_throttle, + .unthrottle = usb_serial_generic_unthrottle, }; static struct usb_serial_driver * const serial_drivers[] = { @@ -166,29 +145,8 @@ struct whiteheat_command_private { __u8 result_buffer[64]; }; - -#define THROTTLED 0x01 -#define ACTUALLY_THROTTLED 0x02 - -static int urb_pool_size = 8; - -struct whiteheat_urb_wrap { - struct list_head list; - struct urb *urb; -}; - struct whiteheat_private { - spinlock_t lock; - __u8 flags; __u8 mcr; /* FIXME: no locking on mcr */ - struct list_head rx_urbs_free; - struct list_head rx_urbs_submitted; - struct list_head rx_urb_q; - struct work_struct rx_work; - struct usb_serial_port *port; - struct list_head tx_urbs_free; - struct list_head tx_urbs_submitted; - struct mutex deathwarrant; }; @@ -198,12 +156,6 @@ static void stop_command_port(struct usb_serial *serial); static void command_port_write_callback(struct urb *urb); static void command_port_read_callback(struct urb *urb); -static int start_port_read(struct usb_serial_port *port); -static struct whiteheat_urb_wrap *urb_to_wrap(struct urb *urb, - struct list_head *head); -static struct list_head *list_first(struct list_head *head); -static void rx_data_softint(struct work_struct *work); - static int firm_send_command(struct usb_serial_port *port, __u8 command, __u8 *data, __u8 datasize); static int firm_open(struct usb_serial_port *port); @@ -247,8 +199,6 @@ static int whiteheat_firmware_download(struct usb_serial *serial, const struct firmware *loader_fw = NULL, *firmware_fw = NULL; const struct ihex_binrec *record; - dbg("%s", __func__); - if (request_ihex_firmware(&firmware_fw, "whiteheat.fw", &serial->dev->dev)) { dev_err(&serial->dev->dev, @@ -349,11 +299,6 @@ static int whiteheat_attach(struct usb_serial *serial) __u8 *command; __u8 *result; int i; - int j; - struct urb *urb; - int buf_size; - struct whiteheat_urb_wrap *wrap; - struct list_head *tmp; command_port = serial->port[COMMAND_PORT]; @@ -408,8 +353,8 @@ static int whiteheat_attach(struct usb_serial *serial) hw_info = (struct whiteheat_hw_info *)&result[1]; - dev_info(&serial->dev->dev, "%s: Driver %s: Firmware v%d.%02d\n", - serial->type->description, DRIVER_VERSION, + dev_info(&serial->dev->dev, "%s: Firmware v%d.%02d\n", + serial->type->description, hw_info->sw_major_rev, hw_info->sw_minor_rev); for (i = 0; i < serial->num_ports; i++) { @@ -423,72 +368,7 @@ static int whiteheat_attach(struct usb_serial *serial) goto no_private; } - spin_lock_init(&info->lock); - mutex_init(&info->deathwarrant); - info->flags = 0; info->mcr = 0; - INIT_WORK(&info->rx_work, rx_data_softint); - info->port = port; - - INIT_LIST_HEAD(&info->rx_urbs_free); - INIT_LIST_HEAD(&info->rx_urbs_submitted); - INIT_LIST_HEAD(&info->rx_urb_q); - INIT_LIST_HEAD(&info->tx_urbs_free); - INIT_LIST_HEAD(&info->tx_urbs_submitted); - - for (j = 0; j < urb_pool_size; j++) { - urb = usb_alloc_urb(0, GFP_KERNEL); - if (!urb) { - dev_err(&port->dev, "No free urbs available\n"); - goto no_rx_urb; - } - buf_size = port->read_urb->transfer_buffer_length; - urb->transfer_buffer = kmalloc(buf_size, GFP_KERNEL); - if (!urb->transfer_buffer) { - dev_err(&port->dev, - "Couldn't allocate urb buffer\n"); - goto no_rx_buf; - } - wrap = kmalloc(sizeof(*wrap), GFP_KERNEL); - if (!wrap) { - dev_err(&port->dev, - "Couldn't allocate urb wrapper\n"); - goto no_rx_wrap; - } - usb_fill_bulk_urb(urb, serial->dev, - usb_rcvbulkpipe(serial->dev, - port->bulk_in_endpointAddress), - urb->transfer_buffer, buf_size, - whiteheat_read_callback, port); - wrap->urb = urb; - list_add(&wrap->list, &info->rx_urbs_free); - - urb = usb_alloc_urb(0, GFP_KERNEL); - if (!urb) { - dev_err(&port->dev, "No free urbs available\n"); - goto no_tx_urb; - } - buf_size = port->write_urb->transfer_buffer_length; - urb->transfer_buffer = kmalloc(buf_size, GFP_KERNEL); - if (!urb->transfer_buffer) { - dev_err(&port->dev, - "Couldn't allocate urb buffer\n"); - goto no_tx_buf; - } - wrap = kmalloc(sizeof(*wrap), GFP_KERNEL); - if (!wrap) { - dev_err(&port->dev, - "Couldn't allocate urb wrapper\n"); - goto no_tx_wrap; - } - usb_fill_bulk_urb(urb, serial->dev, - usb_sndbulkpipe(serial->dev, - port->bulk_out_endpointAddress), - urb->transfer_buffer, buf_size, - whiteheat_write_callback, port); - wrap->urb = urb; - list_add(&wrap->list, &info->tx_urbs_free); - } usb_set_serial_port_data(port, info); } @@ -531,29 +411,6 @@ no_command_private: for (i = serial->num_ports - 1; i >= 0; i--) { port = serial->port[i]; info = usb_get_serial_port_data(port); - for (j = urb_pool_size - 1; j >= 0; j--) { - tmp = list_first(&info->tx_urbs_free); - list_del(tmp); - wrap = list_entry(tmp, struct whiteheat_urb_wrap, list); - urb = wrap->urb; - kfree(wrap); -no_tx_wrap: - kfree(urb->transfer_buffer); -no_tx_buf: - usb_free_urb(urb); -no_tx_urb: - tmp = list_first(&info->rx_urbs_free); - list_del(tmp); - wrap = list_entry(tmp, struct whiteheat_urb_wrap, list); - urb = wrap->urb; - kfree(wrap); -no_rx_wrap: - kfree(urb->transfer_buffer); -no_rx_buf: - usb_free_urb(urb); -no_rx_urb: - ; - } kfree(info); no_private: ; @@ -569,56 +426,27 @@ no_command_buffer: static void whiteheat_release(struct usb_serial *serial) { struct usb_serial_port *command_port; - struct usb_serial_port *port; struct whiteheat_private *info; - struct whiteheat_urb_wrap *wrap; - struct urb *urb; - struct list_head *tmp; - struct list_head *tmp2; int i; - dbg("%s", __func__); - /* free up our private data for our command port */ command_port = serial->port[COMMAND_PORT]; kfree(usb_get_serial_port_data(command_port)); for (i = 0; i < serial->num_ports; i++) { - port = serial->port[i]; - info = usb_get_serial_port_data(port); - list_for_each_safe(tmp, tmp2, &info->rx_urbs_free) { - list_del(tmp); - wrap = list_entry(tmp, struct whiteheat_urb_wrap, list); - urb = wrap->urb; - kfree(wrap); - kfree(urb->transfer_buffer); - usb_free_urb(urb); - } - list_for_each_safe(tmp, tmp2, &info->tx_urbs_free) { - list_del(tmp); - wrap = list_entry(tmp, struct whiteheat_urb_wrap, list); - urb = wrap->urb; - kfree(wrap); - kfree(urb->transfer_buffer); - usb_free_urb(urb); - } + info = usb_get_serial_port_data(serial->port[i]); kfree(info); } } static int whiteheat_open(struct tty_struct *tty, struct usb_serial_port *port) { - int retval = 0; - - dbg("%s - port %d", __func__, port->number); + int retval; retval = start_command_port(port->serial); if (retval) goto exit; - if (tty) - tty->low_latency = 1; - /* send an open port command */ retval = firm_open(port); if (retval) { @@ -640,144 +468,25 @@ static int whiteheat_open(struct tty_struct *tty, struct usb_serial_port *port) usb_clear_halt(port->serial->dev, port->read_urb->pipe); usb_clear_halt(port->serial->dev, port->write_urb->pipe); - /* Start reading from the device */ - retval = start_port_read(port); + retval = usb_serial_generic_open(tty, port); if (retval) { - dev_err(&port->dev, - "%s - failed submitting read urb, error %d\n", - __func__, retval); firm_close(port); stop_command_port(port->serial); goto exit; } - exit: - dbg("%s - exit, retval = %d", __func__, retval); return retval; } static void whiteheat_close(struct usb_serial_port *port) { - struct whiteheat_private *info = usb_get_serial_port_data(port); - struct whiteheat_urb_wrap *wrap; - struct urb *urb; - struct list_head *tmp; - struct list_head *tmp2; - - dbg("%s - port %d", __func__, port->number); - firm_report_tx_done(port); firm_close(port); - /* shutdown our bulk reads and writes */ - mutex_lock(&info->deathwarrant); - spin_lock_irq(&info->lock); - list_for_each_safe(tmp, tmp2, &info->rx_urbs_submitted) { - wrap = list_entry(tmp, struct whiteheat_urb_wrap, list); - urb = wrap->urb; - list_del(tmp); - spin_unlock_irq(&info->lock); - usb_kill_urb(urb); - spin_lock_irq(&info->lock); - list_add(tmp, &info->rx_urbs_free); - } - list_for_each_safe(tmp, tmp2, &info->rx_urb_q) - list_move(tmp, &info->rx_urbs_free); - list_for_each_safe(tmp, tmp2, &info->tx_urbs_submitted) { - wrap = list_entry(tmp, struct whiteheat_urb_wrap, list); - urb = wrap->urb; - list_del(tmp); - spin_unlock_irq(&info->lock); - usb_kill_urb(urb); - spin_lock_irq(&info->lock); - list_add(tmp, &info->tx_urbs_free); - } - spin_unlock_irq(&info->lock); - mutex_unlock(&info->deathwarrant); - stop_command_port(port->serial); -} - - -static int whiteheat_write(struct tty_struct *tty, - struct usb_serial_port *port, const unsigned char *buf, int count) -{ - struct whiteheat_private *info = usb_get_serial_port_data(port); - struct whiteheat_urb_wrap *wrap; - struct urb *urb; - int result; - int bytes; - int sent = 0; - unsigned long flags; - struct list_head *tmp; - - dbg("%s - port %d", __func__, port->number); - - if (count == 0) { - dbg("%s - write request of 0 bytes", __func__); - return (0); - } - - while (count) { - spin_lock_irqsave(&info->lock, flags); - if (list_empty(&info->tx_urbs_free)) { - spin_unlock_irqrestore(&info->lock, flags); - break; - } - tmp = list_first(&info->tx_urbs_free); - list_del(tmp); - spin_unlock_irqrestore(&info->lock, flags); - - wrap = list_entry(tmp, struct whiteheat_urb_wrap, list); - urb = wrap->urb; - bytes = (count > port->bulk_out_size) ? - port->bulk_out_size : count; - memcpy(urb->transfer_buffer, buf + sent, bytes); - - usb_serial_debug_data(debug, &port->dev, - __func__, bytes, urb->transfer_buffer); - - urb->transfer_buffer_length = bytes; - result = usb_submit_urb(urb, GFP_ATOMIC); - if (result) { - dev_err_console(port, - "%s - failed submitting write urb, error %d\n", - __func__, result); - sent = result; - spin_lock_irqsave(&info->lock, flags); - list_add(tmp, &info->tx_urbs_free); - spin_unlock_irqrestore(&info->lock, flags); - break; - } else { - sent += bytes; - count -= bytes; - spin_lock_irqsave(&info->lock, flags); - list_add(tmp, &info->tx_urbs_submitted); - spin_unlock_irqrestore(&info->lock, flags); - } - } - - return sent; -} - -static int whiteheat_write_room(struct tty_struct *tty) -{ - struct usb_serial_port *port = tty->driver_data; - struct whiteheat_private *info = usb_get_serial_port_data(port); - struct list_head *tmp; - int room = 0; - unsigned long flags; - - dbg("%s - port %d", __func__, port->number); + usb_serial_generic_close(port); - spin_lock_irqsave(&info->lock, flags); - list_for_each(tmp, &info->tx_urbs_free) - room++; - spin_unlock_irqrestore(&info->lock, flags); - room *= port->bulk_out_size; - - dbg("%s - returns %d", __func__, room); - return (room); + stop_command_port(port->serial); } static int whiteheat_tiocmget(struct tty_struct *tty) @@ -786,8 +495,6 @@ static int whiteheat_tiocmget(struct tty_struct *tty) struct whiteheat_private *info = usb_get_serial_port_data(port); unsigned int modem_signals = 0; - dbg("%s - port %d", __func__, port->number); - firm_get_dtr_rts(port); if (info->mcr & UART_MCR_DTR) modem_signals |= TIOCM_DTR; @@ -803,8 +510,6 @@ static int whiteheat_tiocmset(struct tty_struct *tty, struct usb_serial_port *port = tty->driver_data; struct whiteheat_private *info = usb_get_serial_port_data(port); - dbg("%s - port %d", __func__, port->number); - if (set & TIOCM_RTS) info->mcr |= UART_MCR_RTS; if (set & TIOCM_DTR) @@ -837,7 +542,7 @@ static int whiteheat_ioctl(struct tty_struct *tty, serstruct.line = port->serial->minor; serstruct.port = port->number; serstruct.flags = ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ; - serstruct.xmit_fifo_size = port->bulk_out_size; + serstruct.xmit_fifo_size = kfifo_size(&port->write_fifo); serstruct.custom_divisor = 0; serstruct.baud_base = 460800; serstruct.close_delay = CLOSING_DELAY; @@ -867,60 +572,6 @@ static void whiteheat_break_ctl(struct tty_struct *tty, int break_state) } -static int whiteheat_chars_in_buffer(struct tty_struct *tty) -{ - struct usb_serial_port *port = tty->driver_data; - struct whiteheat_private *info = usb_get_serial_port_data(port); - struct list_head *tmp; - struct whiteheat_urb_wrap *wrap; - int chars = 0; - unsigned long flags; - - dbg("%s - port %d", __func__, port->number); - - spin_lock_irqsave(&info->lock, flags); - list_for_each(tmp, &info->tx_urbs_submitted) { - wrap = list_entry(tmp, struct whiteheat_urb_wrap, list); - chars += wrap->urb->transfer_buffer_length; - } - spin_unlock_irqrestore(&info->lock, flags); - - dbg("%s - returns %d", __func__, chars); - return chars; -} - - -static void whiteheat_throttle(struct tty_struct *tty) -{ - struct usb_serial_port *port = tty->driver_data; - struct whiteheat_private *info = usb_get_serial_port_data(port); - - dbg("%s - port %d", __func__, port->number); - - spin_lock_irq(&info->lock); - info->flags |= THROTTLED; - spin_unlock_irq(&info->lock); -} - - -static void whiteheat_unthrottle(struct tty_struct *tty) -{ - struct usb_serial_port *port = tty->driver_data; - struct whiteheat_private *info = usb_get_serial_port_data(port); - int actually_throttled; - - dbg("%s - port %d", __func__, port->number); - - spin_lock_irq(&info->lock); - actually_throttled = info->flags & ACTUALLY_THROTTLED; - info->flags &= ~(THROTTLED | ACTUALLY_THROTTLED); - spin_unlock_irq(&info->lock); - - if (actually_throttled) - rx_data_softint(&info->rx_work); -} - - /***************************************************************************** * Connect Tech's White Heat callback routines *****************************************************************************/ @@ -928,8 +579,6 @@ static void command_port_write_callback(struct urb *urb) { int status = urb->status; - dbg("%s", __func__); - if (status) { dbg("nonzero urb status: %d", status); return; @@ -945,8 +594,6 @@ static void command_port_read_callback(struct urb *urb) unsigned char *data = urb->transfer_buffer; int result; - dbg("%s", __func__); - command_info = usb_get_serial_port_data(command_port); if (!command_info) { dbg("%s - command_info is NULL, exiting.", __func__); @@ -989,80 +636,6 @@ static void command_port_read_callback(struct urb *urb) } -static void whiteheat_read_callback(struct urb *urb) -{ - struct usb_serial_port *port = urb->context; - struct whiteheat_urb_wrap *wrap; - unsigned char *data = urb->transfer_buffer; - struct whiteheat_private *info = usb_get_serial_port_data(port); - int status = urb->status; - - dbg("%s - port %d", __func__, port->number); - - spin_lock(&info->lock); - wrap = urb_to_wrap(urb, &info->rx_urbs_submitted); - if (!wrap) { - spin_unlock(&info->lock); - dev_err(&port->dev, "%s - Not my urb!\n", __func__); - return; - } - list_del(&wrap->list); - spin_unlock(&info->lock); - - if (status) { - dbg("%s - nonzero read bulk status received: %d", - __func__, status); - spin_lock(&info->lock); - list_add(&wrap->list, &info->rx_urbs_free); - spin_unlock(&info->lock); - return; - } - - usb_serial_debug_data(debug, &port->dev, - __func__, urb->actual_length, data); - - spin_lock(&info->lock); - list_add_tail(&wrap->list, &info->rx_urb_q); - if (info->flags & THROTTLED) { - info->flags |= ACTUALLY_THROTTLED; - spin_unlock(&info->lock); - return; - } - spin_unlock(&info->lock); - - schedule_work(&info->rx_work); -} - - -static void whiteheat_write_callback(struct urb *urb) -{ - struct usb_serial_port *port = urb->context; - struct whiteheat_private *info = usb_get_serial_port_data(port); - struct whiteheat_urb_wrap *wrap; - int status = urb->status; - - dbg("%s - port %d", __func__, port->number); - - spin_lock(&info->lock); - wrap = urb_to_wrap(urb, &info->tx_urbs_submitted); - if (!wrap) { - spin_unlock(&info->lock); - dev_err(&port->dev, "%s - Not my urb!\n", __func__); - return; - } - list_move(&wrap->list, &info->tx_urbs_free); - spin_unlock(&info->lock); - - if (status) { - dbg("%s - nonzero write bulk status received: %d", - __func__, status); - return; - } - - usb_serial_port_softint(port); -} - - /***************************************************************************** * Connect Tech's White Heat firmware interface *****************************************************************************/ @@ -1337,124 +910,7 @@ static void stop_command_port(struct usb_serial *serial) mutex_unlock(&command_info->mutex); } - -static int start_port_read(struct usb_serial_port *port) -{ - struct whiteheat_private *info = usb_get_serial_port_data(port); - struct whiteheat_urb_wrap *wrap; - struct urb *urb; - int retval = 0; - unsigned long flags; - struct list_head *tmp; - struct list_head *tmp2; - - spin_lock_irqsave(&info->lock, flags); - - list_for_each_safe(tmp, tmp2, &info->rx_urbs_free) { - list_del(tmp); - wrap = list_entry(tmp, struct whiteheat_urb_wrap, list); - urb = wrap->urb; - spin_unlock_irqrestore(&info->lock, flags); - retval = usb_submit_urb(urb, GFP_KERNEL); - if (retval) { - spin_lock_irqsave(&info->lock, flags); - list_add(tmp, &info->rx_urbs_free); - list_for_each_safe(tmp, tmp2, &info->rx_urbs_submitted) { - wrap = list_entry(tmp, struct whiteheat_urb_wrap, list); - urb = wrap->urb; - list_del(tmp); - spin_unlock_irqrestore(&info->lock, flags); - usb_kill_urb(urb); - spin_lock_irqsave(&info->lock, flags); - list_add(tmp, &info->rx_urbs_free); - } - break; - } - spin_lock_irqsave(&info->lock, flags); - list_add(tmp, &info->rx_urbs_submitted); - } - - spin_unlock_irqrestore(&info->lock, flags); - - return retval; -} - - -static struct whiteheat_urb_wrap *urb_to_wrap(struct urb *urb, - struct list_head *head) -{ - struct whiteheat_urb_wrap *wrap; - struct list_head *tmp; - - list_for_each(tmp, head) { - wrap = list_entry(tmp, struct whiteheat_urb_wrap, list); - if (wrap->urb == urb) - return wrap; - } - - return NULL; -} - - -static struct list_head *list_first(struct list_head *head) -{ - return head->next; -} - - -static void rx_data_softint(struct work_struct *work) -{ - struct whiteheat_private *info = - container_of(work, struct whiteheat_private, rx_work); - struct usb_serial_port *port = info->port; - struct tty_struct *tty = tty_port_tty_get(&port->port); - struct whiteheat_urb_wrap *wrap; - struct urb *urb; - unsigned long flags; - struct list_head *tmp; - struct list_head *tmp2; - int result; - int sent = 0; - - spin_lock_irqsave(&info->lock, flags); - if (info->flags & THROTTLED) { - spin_unlock_irqrestore(&info->lock, flags); - goto out; - } - - list_for_each_safe(tmp, tmp2, &info->rx_urb_q) { - list_del(tmp); - spin_unlock_irqrestore(&info->lock, flags); - - wrap = list_entry(tmp, struct whiteheat_urb_wrap, list); - urb = wrap->urb; - - if (tty && urb->actual_length) - sent += tty_insert_flip_string(tty, - urb->transfer_buffer, urb->actual_length); - - result = usb_submit_urb(urb, GFP_ATOMIC); - if (result) { - dev_err(&port->dev, - "%s - failed resubmitting read urb, error %d\n", - __func__, result); - spin_lock_irqsave(&info->lock, flags); - list_add(tmp, &info->rx_urbs_free); - continue; - } - - spin_lock_irqsave(&info->lock, flags); - list_add(tmp, &info->rx_urbs_submitted); - } - spin_unlock_irqrestore(&info->lock, flags); - - if (sent) - tty_flip_buffer_push(tty); -out: - tty_kref_put(tty); -} - -module_usb_serial_driver(whiteheat_driver, serial_drivers); +module_usb_serial_driver(serial_drivers, id_table_combined); MODULE_AUTHOR(DRIVER_AUTHOR); MODULE_DESCRIPTION(DRIVER_DESC); @@ -1463,8 +919,5 @@ MODULE_LICENSE("GPL"); MODULE_FIRMWARE("whiteheat.fw"); MODULE_FIRMWARE("whiteheat_loader.fw"); -module_param(urb_pool_size, int, 0); -MODULE_PARM_DESC(urb_pool_size, "Number of urbs to use for buffering"); - module_param(debug, bool, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(debug, "Debug enabled or not"); |