diff options
| -rw-r--r-- | drivers/usb/serial/ti_usb_3410_5052.c | 266 |
1 files changed, 151 insertions, 115 deletions
diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c index 48831a7..e39c779 100644 --- a/drivers/usb/serial/ti_usb_3410_5052.c +++ b/drivers/usb/serial/ti_usb_3410_5052.c @@ -16,7 +16,7 @@ * For questions or problems with this driver, contact Texas Instruments * technical support, or Al Borchers <alborchers@steinerpoint.com>, or * Peter Berger <pberger@brimson.com>. - * + * * This driver needs this hotplug script in /etc/hotplug/usb/ti_usb_3410_5052 * or in /etc/hotplug.d/usb/ti_usb_3410_5052.hotplug to set the device * configuration. @@ -82,7 +82,7 @@ #include <linux/serial.h> #include <linux/circ_buf.h> #include <linux/mutex.h> -#include <asm/uaccess.h> +#include <linux/uaccess.h> #include <linux/usb.h> #include <linux/usb/serial.h> #include <linux/firmware.h> @@ -151,21 +151,22 @@ struct ti_device { static int ti_startup(struct usb_serial *serial); static void ti_shutdown(struct usb_serial *serial); static int ti_open(struct tty_struct *tty, struct usb_serial_port *port, - struct file *file); + struct file *file); static void ti_close(struct tty_struct *tty, struct usb_serial_port *port, - struct file *file); + struct file *file); static int ti_write(struct tty_struct *tty, struct usb_serial_port *port, - const unsigned char *data, int count); + const unsigned char *data, int count); static int ti_write_room(struct tty_struct *tty); static int ti_chars_in_buffer(struct tty_struct *tty); static void ti_throttle(struct tty_struct *tty); static void ti_unthrottle(struct tty_struct *tty); -static int ti_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg); -static void ti_set_termios(struct tty_struct *tty, struct usb_serial_port *port, - struct ktermios *old_termios); +static int ti_ioctl(struct tty_struct *tty, struct file *file, + unsigned int cmd, unsigned long arg); +static void ti_set_termios(struct tty_struct *tty, + struct usb_serial_port *port, struct ktermios *old_termios); static int ti_tiocmget(struct tty_struct *tty, struct file *file); static int ti_tiocmset(struct tty_struct *tty, struct file *file, - unsigned int set, unsigned int clear); + unsigned int set, unsigned int clear); static void ti_break(struct tty_struct *tty, int break_state); static void ti_interrupt_callback(struct urb *urb); static void ti_bulk_in_callback(struct urb *urb); @@ -327,19 +328,25 @@ module_param(debug, bool, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(debug, "Enable debugging, 0=no, 1=yes"); module_param(low_latency, bool, S_IRUGO | S_IWUSR); -MODULE_PARM_DESC(low_latency, "TTY low_latency flag, 0=off, 1=on, default is off"); +MODULE_PARM_DESC(low_latency, + "TTY low_latency flag, 0=off, 1=on, default is off"); module_param(closing_wait, int, S_IRUGO | S_IWUSR); -MODULE_PARM_DESC(closing_wait, "Maximum wait for data to drain in close, in .01 secs, default is 4000"); +MODULE_PARM_DESC(closing_wait, + "Maximum wait for data to drain in close, in .01 secs, default is 4000"); module_param_array(vendor_3410, ushort, &vendor_3410_count, S_IRUGO); -MODULE_PARM_DESC(vendor_3410, "Vendor ids for 3410 based devices, 1-5 short integers"); +MODULE_PARM_DESC(vendor_3410, + "Vendor ids for 3410 based devices, 1-5 short integers"); module_param_array(product_3410, ushort, &product_3410_count, S_IRUGO); -MODULE_PARM_DESC(product_3410, "Product ids for 3410 based devices, 1-5 short integers"); +MODULE_PARM_DESC(product_3410, + "Product ids for 3410 based devices, 1-5 short integers"); module_param_array(vendor_5052, ushort, &vendor_5052_count, S_IRUGO); -MODULE_PARM_DESC(vendor_5052, "Vendor ids for 5052 based devices, 1-5 short integers"); +MODULE_PARM_DESC(vendor_5052, + "Vendor ids for 5052 based devices, 1-5 short integers"); module_param_array(product_5052, ushort, &product_5052_count, S_IRUGO); -MODULE_PARM_DESC(product_5052, "Product ids for 5052 based devices, 1-5 short integers"); +MODULE_PARM_DESC(product_5052, + "Product ids for 5052 based devices, 1-5 short integers"); MODULE_DEVICE_TABLE(usb, ti_id_table_combined); @@ -348,18 +355,18 @@ MODULE_DEVICE_TABLE(usb, ti_id_table_combined); static int __init ti_init(void) { - int i,j; + int i, j; int ret; /* insert extra vendor and product ids */ j = ARRAY_SIZE(ti_id_table_3410) - TI_EXTRA_VID_PID_COUNT - 1; - for (i=0; i<min(vendor_3410_count,product_3410_count); i++,j++) { + for (i = 0; i < min(vendor_3410_count, product_3410_count); i++, j++) { ti_id_table_3410[j].idVendor = vendor_3410[i]; ti_id_table_3410[j].idProduct = product_3410[i]; ti_id_table_3410[j].match_flags = USB_DEVICE_ID_MATCH_DEVICE; } j = ARRAY_SIZE(ti_id_table_5052) - TI_EXTRA_VID_PID_COUNT - 1; - for (i=0; i<min(vendor_5052_count,product_5052_count); i++,j++) { + for (i = 0; i < min(vendor_5052_count, product_5052_count); i++, j++) { ti_id_table_5052[j].idVendor = vendor_5052[i]; ti_id_table_5052[j].idProduct = product_5052[i]; ti_id_table_5052[j].match_flags = USB_DEVICE_ID_MATCH_DEVICE; @@ -428,7 +435,8 @@ static int ti_startup(struct usb_serial *serial) /* determine device type */ if (usb_match_id(serial->interface, ti_id_table_3410)) tdev->td_is_3410 = 1; - dbg("%s - device type is %s", __func__, tdev->td_is_3410 ? "3410" : "5052"); + dbg("%s - device type is %s", __func__, + tdev->td_is_3410 ? "3410" : "5052"); /* if we have only 1 configuration, download firmware */ if (dev->descriptor.bNumConfigurations == 1) { @@ -447,7 +455,7 @@ static int ti_startup(struct usb_serial *serial) status = -ENODEV; goto free_tdev; - } + } /* the second configuration must be set (in sysfs by hotplug script) */ if (dev->actconfig->desc.bConfigurationValue == TI_BOOT_CONFIG) { @@ -464,7 +472,8 @@ static int ti_startup(struct usb_serial *serial) goto free_tports; } spin_lock_init(&tport->tp_lock); - tport->tp_uart_base_addr = (i == 0 ? TI_UART1_BASE_ADDR : TI_UART2_BASE_ADDR); + tport->tp_uart_base_addr = (i == 0 ? + TI_UART1_BASE_ADDR : TI_UART2_BASE_ADDR); tport->tp_flags = low_latency ? ASYNC_LOW_LATENCY : 0; tport->tp_closing_wait = closing_wait; init_waitqueue_head(&tport->tp_msr_wait); @@ -481,11 +490,11 @@ static int ti_startup(struct usb_serial *serial) usb_set_serial_port_data(serial->port[i], tport); tport->tp_uart_mode = 0; /* default is RS232 */ } - + return 0; free_tports: - for (--i; i>=0; --i) { + for (--i; i >= 0; --i) { tport = usb_get_serial_port_data(serial->port[i]); ti_buf_free(tport->tp_write_buf); kfree(tport); @@ -506,7 +515,7 @@ static void ti_shutdown(struct usb_serial *serial) dbg("%s", __func__); - for (i=0; i < serial->num_ports; ++i) { + for (i = 0; i < serial->num_ports; ++i) { tport = usb_get_serial_port_data(serial->port[i]); if (tport) { ti_buf_free(tport->tp_write_buf); @@ -529,8 +538,8 @@ static int ti_open(struct tty_struct *tty, struct urb *urb; int port_number; int status; - __u16 open_settings = (__u8)(TI_PIPE_MODE_CONTINOUS | - TI_PIPE_TIMEOUT_ENABLE | + __u16 open_settings = (__u8)(TI_PIPE_MODE_CONTINOUS | + TI_PIPE_TIMEOUT_ENABLE | (TI_TRANSFER_TIMEOUT << 2)); dbg("%s - port %d", __func__, port->number); @@ -561,7 +570,8 @@ static int ti_open(struct tty_struct *tty, dbg("%s - start interrupt in urb", __func__); urb = tdev->td_serial->port[0]->interrupt_in_urb; if (!urb) { - dev_err(&port->dev, "%s - no interrupt urb\n", __func__); + dev_err(&port->dev, "%s - no interrupt urb\n", + __func__); status = -EINVAL; goto release_lock; } @@ -570,7 +580,9 @@ static int ti_open(struct tty_struct *tty, urb->dev = dev; status = usb_submit_urb(urb, GFP_KERNEL); if (status) { - dev_err(&port->dev, "%s - submit interrupt urb failed, %d\n", __func__, status); + dev_err(&port->dev, + "%s - submit interrupt urb failed, %d\n", + __func__, status); goto release_lock; } } @@ -582,7 +594,8 @@ static int ti_open(struct tty_struct *tty, status = ti_command_out_sync(tdev, TI_OPEN_PORT, (__u8)(TI_UART1_PORT + port_number), open_settings, NULL, 0); if (status) { - dev_err(&port->dev, "%s - cannot send open command, %d\n", __func__, status); + dev_err(&port->dev, "%s - cannot send open command, %d\n", + __func__, status); goto unlink_int_urb; } @@ -590,7 +603,8 @@ static int ti_open(struct tty_struct *tty, status = ti_command_out_sync(tdev, TI_START_PORT, (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0); if (status) { - dev_err(&port->dev, "%s - cannot send start command, %d\n", __func__, status); + dev_err(&port->dev, "%s - cannot send start command, %d\n", + __func__, status); goto unlink_int_urb; } @@ -598,13 +612,15 @@ static int ti_open(struct tty_struct *tty, status = ti_command_out_sync(tdev, TI_PURGE_PORT, (__u8)(TI_UART1_PORT + port_number), TI_PURGE_INPUT, NULL, 0); if (status) { - dev_err(&port->dev, "%s - cannot clear input buffers, %d\n", __func__, status); + dev_err(&port->dev, "%s - cannot clear input buffers, %d\n", + __func__, status); goto unlink_int_urb; } status = ti_command_out_sync(tdev, TI_PURGE_PORT, (__u8)(TI_UART1_PORT + port_number), TI_PURGE_OUTPUT, NULL, 0); if (status) { - dev_err(&port->dev, "%s - cannot clear output buffers, %d\n", __func__, status); + dev_err(&port->dev, "%s - cannot clear output buffers, %d\n", + __func__, status); goto unlink_int_urb; } @@ -620,7 +636,8 @@ static int ti_open(struct tty_struct *tty, status = ti_command_out_sync(tdev, TI_OPEN_PORT, (__u8)(TI_UART1_PORT + port_number), open_settings, NULL, 0); if (status) { - dev_err(&port->dev, "%s - cannot send open command (2), %d\n", __func__, status); + dev_err(&port->dev, "%s - cannot send open command (2), %d\n", + __func__, status); goto unlink_int_urb; } @@ -628,7 +645,8 @@ static int ti_open(struct tty_struct *tty, status = ti_command_out_sync(tdev, TI_START_PORT, (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0); if (status) { - dev_err(&port->dev, "%s - cannot send start command (2), %d\n", __func__, status); + dev_err(&port->dev, "%s - cannot send start command (2), %d\n", + __func__, status); goto unlink_int_urb; } @@ -646,7 +664,8 @@ static int ti_open(struct tty_struct *tty, urb->dev = dev; status = usb_submit_urb(urb, GFP_KERNEL); if (status) { - dev_err(&port->dev, "%s - submit read urb failed, %d\n", __func__, status); + dev_err(&port->dev, "%s - submit read urb failed, %d\n", + __func__, status); goto unlink_int_urb; } @@ -675,7 +694,7 @@ static void ti_close(struct tty_struct *tty, struct usb_serial_port *port, int do_unlock; dbg("%s - port %d", __func__, port->number); - + tdev = usb_get_serial_data(port->serial); tport = usb_get_serial_port_data(port); if (tdev == NULL || tport == NULL) @@ -695,7 +714,9 @@ static void ti_close(struct tty_struct *tty, struct usb_serial_port *port, status = ti_command_out_sync(tdev, TI_CLOSE_PORT, (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0); if (status) - dev_err(&port->dev, "%s - cannot send close port command, %d\n" , __func__, status); + dev_err(&port->dev, + "%s - cannot send close port command, %d\n" + , __func__, status); /* if mutex_lock is interrupted, continue anyway */ do_unlock = !mutex_lock_interruptible(&tdev->td_open_close_lock); @@ -749,7 +770,7 @@ static int ti_write_room(struct tty_struct *tty) if (tport == NULL) return -ENODEV; - + spin_lock_irqsave(&tport->tp_lock, flags); room = ti_buf_space_avail(tport->tp_write_buf); spin_unlock_irqrestore(&tport->tp_lock, flags); @@ -810,7 +831,8 @@ static void ti_unthrottle(struct tty_struct *tty) if (I_IXOFF(tty) || C_CRTSCTS(tty)) { status = ti_restart_read(tport, tty); if (status) - dev_err(&port->dev, "%s - cannot restart read, %d\n", __func__, status); + dev_err(&port->dev, "%s - cannot restart read, %d\n", + __func__, status); } } @@ -829,44 +851,42 @@ static int ti_ioctl(struct tty_struct *tty, struct file *file, return -ENODEV; switch (cmd) { - case TIOCGSERIAL: - dbg("%s - (%d) TIOCGSERIAL", __func__, port->number); - return ti_get_serial_info(tport, (struct serial_struct __user *)arg); - break; - - case TIOCSSERIAL: - dbg("%s - (%d) TIOCSSERIAL", __func__, port->number); - return ti_set_serial_info(tport, (struct serial_struct __user *)arg); - break; - - case TIOCMIWAIT: - dbg("%s - (%d) TIOCMIWAIT", __func__, port->number); - cprev = tport->tp_icount; - while (1) { - interruptible_sleep_on(&tport->tp_msr_wait); - if (signal_pending(current)) - return -ERESTARTSYS; - cnow = tport->tp_icount; - if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr && - cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) - return -EIO; /* no change => error */ - if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) || - ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) || - ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) || - ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts)) ) { - return 0; - } - cprev = cnow; - } - break; - - case TIOCGICOUNT: - dbg("%s - (%d) TIOCGICOUNT RX=%d, TX=%d", __func__, port->number, tport->tp_icount.rx, tport->tp_icount.tx); - if (copy_to_user((void __user *)arg, &tport->tp_icount, sizeof(tport->tp_icount))) - return -EFAULT; - return 0; + case TIOCGSERIAL: + dbg("%s - (%d) TIOCGSERIAL", __func__, port->number); + return ti_get_serial_info(tport, + (struct serial_struct __user *)arg); + case TIOCSSERIAL: + dbg("%s - (%d) TIOCSSERIAL", __func__, port->number); + return ti_set_serial_info(tport, + (struct serial_struct __user *)arg); + case TIOCMIWAIT: + dbg("%s - (%d) TIOCMIWAIT", __func__, port->number); + cprev = tport->tp_icount; + while (1) { + interruptible_sleep_on(&tport->tp_msr_wait); + if (signal_pending(current)) + return -ERESTARTSYS; + cnow = tport->tp_icount; + if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr && + cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) + return -EIO; /* no change => error */ + if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) || + ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) || + ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) || + ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts))) + return 0; + cprev = cnow; + } + break; + case TIOCGICOUNT: + dbg("%s - (%d) TIOCGICOUNT RX=%d, TX=%d", + __func__, port->number, + tport->tp_icount.rx, tport->tp_icount.tx); + if (copy_to_user((void __user *)arg, &tport->tp_icount, + sizeof(tport->tp_icount))) + return -EFAULT; + return 0; } - return -ENOIOCTLCMD; } @@ -876,7 +896,7 @@ static void ti_set_termios(struct tty_struct *tty, { struct ti_port *tport = usb_get_serial_port_data(port); struct ti_uart_config *config; - tcflag_t cflag,iflag; + tcflag_t cflag, iflag; int baud; int status; int port_number = port->number - port->serial->minor; @@ -888,7 +908,8 @@ static void ti_set_termios(struct tty_struct *tty, iflag = tty->termios->c_iflag; dbg("%s - cflag %08x, iflag %08x", __func__, cflag, iflag); - dbg("%s - old clfag %08x, old iflag %08x", __func__, old_termios->c_cflag, old_termios->c_iflag); + dbg("%s - old clfag %08x, old iflag %08x", __func__, + old_termios->c_cflag, old_termios->c_iflag); if (tport == NULL) return; @@ -907,19 +928,19 @@ static void ti_set_termios(struct tty_struct *tty, config->bUartMode = (__u8)(tport->tp_uart_mode); switch (cflag & CSIZE) { - case CS5: - config->bDataBits = TI_UART_5_DATA_BITS; - break; - case CS6: - config->bDataBits = TI_UART_6_DATA_BITS; - break; - case CS7: - config->bDataBits = TI_UART_7_DATA_BITS; - break; - default: - case CS8: - config->bDataBits = TI_UART_8_DATA_BITS; - break; + case CS5: + config->bDataBits = TI_UART_5_DATA_BITS; + break; + case CS6: + config->bDataBits = TI_UART_6_DATA_BITS; + break; + case CS7: + config->bDataBits = TI_UART_7_DATA_BITS; + break; + default: + case CS8: + config->bDataBits = TI_UART_8_DATA_BITS; + break; } /* CMSPAR isn't supported by this driver */ @@ -935,7 +956,7 @@ static void ti_set_termios(struct tty_struct *tty, } } else { config->wFlags &= ~TI_UART_ENABLE_PARITY_CHECKING; - config->bParity = TI_UART_NO_PARITY; + config->bParity = TI_UART_NO_PARITY; } if (cflag & CSTOPB) @@ -988,7 +1009,8 @@ static void ti_set_termios(struct tty_struct *tty, (__u8)(TI_UART1_PORT + port_number), 0, (__u8 *)config, sizeof(*config)); if (status) - dev_err(&port->dev, "%s - cannot set config on port %d, %d\n", __func__, port_number, status); + dev_err(&port->dev, "%s - cannot set config on port %d, %d\n", + __func__, port_number, status); /* SET_CONFIG asserts RTS and DTR, reset them correctly */ mcr = tport->tp_shadow_mcr; @@ -997,7 +1019,9 @@ static void ti_set_termios(struct tty_struct *tty, mcr &= ~(TI_MCR_DTR | TI_MCR_RTS); status = ti_set_mcr(tport, mcr); if (status) - dev_err(&port->dev, "%s - cannot set modem control on port %d, %d\n", __func__, port_number, status); + dev_err(&port->dev, + "%s - cannot set modem control on port %d, %d\n", + __func__, port_number, status); kfree(config); } @@ -1139,10 +1163,12 @@ static void ti_interrupt_callback(struct urb *urb) port_number = TI_GET_PORT_FROM_CODE(data[0]); function = TI_GET_FUNC_FROM_CODE(data[0]); - dbg("%s - port_number %d, function %d, data 0x%02X", __func__, port_number, function, data[1]); + dbg("%s - port_number %d, function %d, data 0x%02X", + __func__, port_number, function, data[1]); if (port_number >= serial->num_ports) { - dev_err(dev, "%s - bad port number, %d\n", __func__, port_number); + dev_err(dev, "%s - bad port number, %d\n", + __func__, port_number); goto exit; } @@ -1154,7 +1180,8 @@ static void ti_interrupt_callback(struct urb *urb) switch (function) { case TI_CODE_DATA_ERROR: - dev_err(dev, "%s - DATA ERROR, port %d, data 0x%02X\n", __func__, port_number, data[1]); + dev_err(dev, "%s - DATA ERROR, port %d, data 0x%02X\n", + __func__, port_number, data[1]); break; case TI_CODE_MODEM_STATUS: @@ -1164,7 +1191,8 @@ static void ti_interrupt_callback(struct urb *urb) break; default: - dev_err(dev, "%s - unknown interrupt code, 0x%02X\n", __func__, data[1]); + dev_err(dev, "%s - unknown interrupt code, 0x%02X\n", + __func__, data[1]); break; } @@ -1198,7 +1226,7 @@ static void ti_bulk_in_callback(struct urb *urb) return; default: dev_err(dev, "%s - nonzero urb status, %d\n", - __func__, status ); + __func__, status); tport->tp_tdev->td_urb_error = 1; wake_up_interruptible(&tport->tp_write_wait); } @@ -1218,8 +1246,9 @@ static void ti_bulk_in_callback(struct urb *urb) if (!tport->tp_is_open) dbg("%s - port closed, dropping data", __func__); else - ti_recv(&urb->dev->dev, port->port.tty, urb->transfer_buffer, - urb->actual_length); + ti_recv(&urb->dev->dev, port->port.tty, + urb->transfer_buffer, + urb->actual_length); spin_lock(&tport->tp_lock); tport->tp_icount.rx += urb->actual_length; @@ -1283,8 +1312,9 @@ static void ti_recv(struct device *dev, struct tty_struct *tty, do { cnt = tty_buffer_request_room(tty, length); if (cnt < length) { - dev_err(dev, "%s - dropping data, %d bytes lost\n", __func__, length - cnt); - if(cnt == 0) + dev_err(dev, "%s - dropping data, %d bytes lost\n", + __func__, length - cnt); + if (cnt == 0) break; } tty_insert_flip_string(tty, data, cnt); @@ -1326,7 +1356,8 @@ static void ti_send(struct ti_port *tport) spin_unlock_irqrestore(&tport->tp_lock, flags); - usb_serial_debug_data(debug, &port->dev, __func__, count, port->write_urb->transfer_buffer); + usb_serial_debug_data(debug, &port->dev, __func__, count, + port->write_urb->transfer_buffer); usb_fill_bulk_urb(port->write_urb, port->serial->dev, usb_sndbulkpipe(port->serial->dev, @@ -1336,8 +1367,9 @@ static void ti_send(struct ti_port *tport) result = usb_submit_urb(port->write_urb, GFP_ATOMIC); if (result) { - dev_err(&port->dev, "%s - submit write urb failed, %d\n", __func__, result); - tport->tp_write_urb_in_use = 0; + dev_err(&port->dev, "%s - submit write urb failed, %d\n", + __func__, result); + tport->tp_write_urb_in_use = 0; /* TODO: reschedule ti_send */ } else { spin_lock_irqsave(&tport->tp_lock, flags); @@ -1372,7 +1404,7 @@ static int ti_set_mcr(struct ti_port *tport, unsigned int mcr) static int ti_get_lsr(struct ti_port *tport) { - int size,status; + int size, status; struct ti_device *tdev = tport->tp_tdev; struct usb_serial_port *port = tport->tp_port; int port_number = port->number - port->serial->minor; @@ -1390,7 +1422,9 @@ static int ti_get_lsr(struct ti_port *tport) status = ti_command_in_sync(tdev, TI_GET_PORT_STATUS, (__u8)(TI_UART1_PORT+port_number), 0, (__u8 *)data, size); if (status) { - dev_err(&port->dev, "%s - get port status command failed, %d\n", __func__, status); + dev_err(&port->dev, + "%s - get port status command failed, %d\n", + __func__, status); goto free_data; } @@ -1626,7 +1660,8 @@ static int ti_write_byte(struct ti_device *tdev, unsigned long addr, struct ti_write_data_bytes *data; struct device *dev = &tdev->td_serial->dev->dev; - dbg("%s - addr 0x%08lX, mask 0x%02X, byte 0x%02X", __func__, addr, mask, byte); + dbg("%s - addr 0x%08lX, mask 0x%02X, byte 0x%02X", + __func__, addr, mask, byte); size = sizeof(struct ti_write_data_bytes) + 2; data = kmalloc(size, GFP_KERNEL); @@ -1663,12 +1698,12 @@ static int ti_do_download(struct usb_device *dev, int pipe, struct ti_firmware_header *header; int status; int len; - - for(pos = sizeof(struct ti_firmware_header); pos < size; pos++) + + for (pos = sizeof(struct ti_firmware_header); pos < size; pos++) cs = (__u8)(cs + buffer[pos]); header = (struct ti_firmware_header *)buffer; - header->wLength = cpu_to_le16((__u16)(size + header->wLength = cpu_to_le16((__u16)(size - sizeof(struct ti_firmware_header))); header->bCheckSum = cs; @@ -1714,7 +1749,8 @@ static int ti_download_firmware(struct ti_device *tdev, int type) } release_firmware(fw_p); if (status) { - dev_err(&dev->dev, "%s - error downloading firmware, %d\n", __func__, status); + dev_err(&dev->dev, "%s - error downloading firmware, %d\n", + __func__, status); return status; } @@ -1786,7 +1822,7 @@ static void ti_buf_clear(struct circ_buf *cb) static int ti_buf_data_avail(struct circ_buf *cb) { - return CIRC_CNT(cb->head,cb->tail,TI_WRITE_BUF_SIZE); + return CIRC_CNT(cb->head, cb->tail, TI_WRITE_BUF_SIZE); } @@ -1799,7 +1835,7 @@ static int ti_buf_data_avail(struct circ_buf *cb) static int ti_buf_space_avail(struct circ_buf *cb) { - return CIRC_SPACE(cb->head,cb->tail,TI_WRITE_BUF_SIZE); + return CIRC_SPACE(cb->head, cb->tail, TI_WRITE_BUF_SIZE); } |
