Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* vi: ts=8 sw=8 |
| 2 | * |
| 3 | * TI 3410/5052 USB Serial Driver |
| 4 | * |
| 5 | * Copyright (C) 2004 Texas Instruments |
| 6 | * |
| 7 | * This driver is based on the Linux io_ti driver, which is |
| 8 | * Copyright (C) 2000-2002 Inside Out Networks |
| 9 | * Copyright (C) 2001-2002 Greg Kroah-Hartman |
| 10 | * |
| 11 | * This program is free software; you can redistribute it and/or modify |
| 12 | * it under the terms of the GNU General Public License as published by |
| 13 | * the Free Software Foundation; either version 2 of the License, or |
| 14 | * (at your option) any later version. |
| 15 | * |
| 16 | * For questions or problems with this driver, contact Texas Instruments |
| 17 | * technical support, or Al Borchers <alborchers@steinerpoint.com>, or |
| 18 | * Peter Berger <pberger@brimson.com>. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 19 | */ |
| 20 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 21 | #include <linux/kernel.h> |
| 22 | #include <linux/errno.h> |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 23 | #include <linux/firmware.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 24 | #include <linux/init.h> |
| 25 | #include <linux/slab.h> |
| 26 | #include <linux/tty.h> |
| 27 | #include <linux/tty_driver.h> |
| 28 | #include <linux/tty_flip.h> |
| 29 | #include <linux/module.h> |
| 30 | #include <linux/spinlock.h> |
| 31 | #include <linux/ioctl.h> |
| 32 | #include <linux/serial.h> |
Johan Hovold | 074ef65 | 2010-05-19 00:01:35 +0200 | [diff] [blame] | 33 | #include <linux/kfifo.h> |
Matthias Kaehlcke | 9da0068 | 2007-11-21 15:13:16 -0800 | [diff] [blame] | 34 | #include <linux/mutex.h> |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 35 | #include <linux/uaccess.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 36 | #include <linux/usb.h> |
Greg Kroah-Hartman | a969888 | 2006-07-11 21:22:58 -0700 | [diff] [blame] | 37 | #include <linux/usb/serial.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 39 | #include "ti_usb_3410_5052.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 40 | |
| 41 | /* Defines */ |
| 42 | |
Johan Hovold | 074ef65 | 2010-05-19 00:01:35 +0200 | [diff] [blame] | 43 | #define TI_DRIVER_VERSION "v0.10" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | #define TI_DRIVER_AUTHOR "Al Borchers <alborchers@steinerpoint.com>" |
| 45 | #define TI_DRIVER_DESC "TI USB 3410/5052 Serial Driver" |
| 46 | |
| 47 | #define TI_FIRMWARE_BUF_SIZE 16284 |
| 48 | |
| 49 | #define TI_WRITE_BUF_SIZE 1024 |
| 50 | |
| 51 | #define TI_TRANSFER_TIMEOUT 2 |
| 52 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | #define TI_DEFAULT_CLOSING_WAIT 4000 /* in .01 secs */ |
| 54 | |
| 55 | /* supported setserial flags */ |
Oliver Neukum | 2400a2b | 2009-04-20 17:28:53 +0200 | [diff] [blame] | 56 | #define TI_SET_SERIAL_FLAGS 0 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 57 | |
| 58 | /* read urb states */ |
| 59 | #define TI_READ_URB_RUNNING 0 |
| 60 | #define TI_READ_URB_STOPPING 1 |
| 61 | #define TI_READ_URB_STOPPED 2 |
| 62 | |
| 63 | #define TI_EXTRA_VID_PID_COUNT 5 |
| 64 | |
| 65 | |
| 66 | /* Structures */ |
| 67 | |
| 68 | struct ti_port { |
| 69 | int tp_is_open; |
| 70 | __u8 tp_msr; |
| 71 | __u8 tp_lsr; |
| 72 | __u8 tp_shadow_mcr; |
| 73 | __u8 tp_uart_mode; /* 232 or 485 modes */ |
| 74 | unsigned int tp_uart_base_addr; |
| 75 | int tp_flags; |
| 76 | int tp_closing_wait;/* in .01 secs */ |
| 77 | struct async_icount tp_icount; |
| 78 | wait_queue_head_t tp_msr_wait; /* wait for msr change */ |
| 79 | wait_queue_head_t tp_write_wait; |
| 80 | struct ti_device *tp_tdev; |
| 81 | struct usb_serial_port *tp_port; |
| 82 | spinlock_t tp_lock; |
| 83 | int tp_read_urb_state; |
| 84 | int tp_write_urb_in_use; |
Johan Hovold | 074ef65 | 2010-05-19 00:01:35 +0200 | [diff] [blame] | 85 | struct kfifo write_fifo; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 86 | }; |
| 87 | |
| 88 | struct ti_device { |
Matthias Kaehlcke | 9da0068 | 2007-11-21 15:13:16 -0800 | [diff] [blame] | 89 | struct mutex td_open_close_lock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 90 | int td_open_port_count; |
| 91 | struct usb_serial *td_serial; |
| 92 | int td_is_3410; |
| 93 | int td_urb_error; |
| 94 | }; |
| 95 | |
| 96 | |
| 97 | /* Function Declarations */ |
| 98 | |
| 99 | static int ti_startup(struct usb_serial *serial); |
Alan Stern | f9c99bb | 2009-06-02 11:53:55 -0400 | [diff] [blame] | 100 | static void ti_release(struct usb_serial *serial); |
Alan Cox | a509a7e | 2009-09-19 13:13:26 -0700 | [diff] [blame] | 101 | static int ti_open(struct tty_struct *tty, struct usb_serial_port *port); |
Alan Cox | 335f851 | 2009-06-11 12:26:29 +0100 | [diff] [blame] | 102 | static void ti_close(struct usb_serial_port *port); |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 103 | static int ti_write(struct tty_struct *tty, struct usb_serial_port *port, |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 104 | const unsigned char *data, int count); |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 105 | static int ti_write_room(struct tty_struct *tty); |
| 106 | static int ti_chars_in_buffer(struct tty_struct *tty); |
| 107 | static void ti_throttle(struct tty_struct *tty); |
| 108 | static void ti_unthrottle(struct tty_struct *tty); |
Alan Cox | 00a0d0d | 2011-02-14 16:27:06 +0000 | [diff] [blame] | 109 | static int ti_ioctl(struct tty_struct *tty, |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 110 | unsigned int cmd, unsigned long arg); |
Alan Cox | 0bca1b9 | 2010-09-16 18:21:40 +0100 | [diff] [blame] | 111 | static int ti_get_icount(struct tty_struct *tty, |
| 112 | struct serial_icounter_struct *icount); |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 113 | static void ti_set_termios(struct tty_struct *tty, |
| 114 | struct usb_serial_port *port, struct ktermios *old_termios); |
Alan Cox | 60b33c1 | 2011-02-14 16:26:14 +0000 | [diff] [blame] | 115 | static int ti_tiocmget(struct tty_struct *tty); |
Alan Cox | 20b9d17 | 2011-02-14 16:26:50 +0000 | [diff] [blame] | 116 | static int ti_tiocmset(struct tty_struct *tty, |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 117 | unsigned int set, unsigned int clear); |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 118 | static void ti_break(struct tty_struct *tty, int break_state); |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 119 | static void ti_interrupt_callback(struct urb *urb); |
| 120 | static void ti_bulk_in_callback(struct urb *urb); |
| 121 | static void ti_bulk_out_callback(struct urb *urb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 122 | |
| 123 | static void ti_recv(struct device *dev, struct tty_struct *tty, |
| 124 | unsigned char *data, int length); |
| 125 | static void ti_send(struct ti_port *tport); |
| 126 | static int ti_set_mcr(struct ti_port *tport, unsigned int mcr); |
| 127 | static int ti_get_lsr(struct ti_port *tport); |
| 128 | static int ti_get_serial_info(struct ti_port *tport, |
| 129 | struct serial_struct __user *ret_arg); |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 130 | static int ti_set_serial_info(struct tty_struct *tty, struct ti_port *tport, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 131 | struct serial_struct __user *new_arg); |
| 132 | static void ti_handle_new_msr(struct ti_port *tport, __u8 msr); |
| 133 | |
| 134 | static void ti_drain(struct ti_port *tport, unsigned long timeout, int flush); |
| 135 | |
| 136 | static void ti_stop_read(struct ti_port *tport, struct tty_struct *tty); |
| 137 | static int ti_restart_read(struct ti_port *tport, struct tty_struct *tty); |
| 138 | |
| 139 | static int ti_command_out_sync(struct ti_device *tdev, __u8 command, |
| 140 | __u16 moduleid, __u16 value, __u8 *data, int size); |
| 141 | static int ti_command_in_sync(struct ti_device *tdev, __u8 command, |
| 142 | __u16 moduleid, __u16 value, __u8 *data, int size); |
| 143 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 144 | static int ti_write_byte(struct usb_serial_port *port, struct ti_device *tdev, |
| 145 | unsigned long addr, __u8 mask, __u8 byte); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 146 | |
Chris Adams | 05a3d90 | 2009-01-11 19:48:53 +0000 | [diff] [blame] | 147 | static int ti_download_firmware(struct ti_device *tdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 148 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 149 | |
| 150 | /* Data */ |
| 151 | |
| 152 | /* module parameters */ |
Rusty Russell | 90ab5ee | 2012-01-13 09:32:20 +1030 | [diff] [blame] | 153 | static bool debug; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 154 | static int closing_wait = TI_DEFAULT_CLOSING_WAIT; |
| 155 | static ushort vendor_3410[TI_EXTRA_VID_PID_COUNT]; |
Al Viro | 64a6f95 | 2007-10-14 19:35:30 +0100 | [diff] [blame] | 156 | static unsigned int vendor_3410_count; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 157 | static ushort product_3410[TI_EXTRA_VID_PID_COUNT]; |
Al Viro | 64a6f95 | 2007-10-14 19:35:30 +0100 | [diff] [blame] | 158 | static unsigned int product_3410_count; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 159 | static ushort vendor_5052[TI_EXTRA_VID_PID_COUNT]; |
Al Viro | 64a6f95 | 2007-10-14 19:35:30 +0100 | [diff] [blame] | 160 | static unsigned int vendor_5052_count; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 161 | static ushort product_5052[TI_EXTRA_VID_PID_COUNT]; |
Al Viro | 64a6f95 | 2007-10-14 19:35:30 +0100 | [diff] [blame] | 162 | static unsigned int product_5052_count; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 163 | |
| 164 | /* supported devices */ |
| 165 | /* the array dimension is the number of default entries plus */ |
| 166 | /* TI_EXTRA_VID_PID_COUNT user defined entries plus 1 terminating */ |
| 167 | /* null entry */ |
Darren Hart | 975dc33 | 2012-05-11 13:56:57 -0700 | [diff] [blame] | 168 | static struct usb_device_id ti_id_table_3410[15+TI_EXTRA_VID_PID_COUNT+1] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 169 | { USB_DEVICE(TI_VENDOR_ID, TI_3410_PRODUCT_ID) }, |
Oleg Verych | 1f54a6a | 2006-11-17 08:21:27 +0000 | [diff] [blame] | 170 | { USB_DEVICE(TI_VENDOR_ID, TI_3410_EZ430_ID) }, |
Chris Adams | cb7a7c6 | 2009-01-11 19:49:00 +0000 | [diff] [blame] | 171 | { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_NO_FW_PRODUCT_ID) }, |
| 172 | { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_NO_FW_PRODUCT_ID) }, |
| 173 | { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_PRODUCT_ID) }, |
| 174 | { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_PRODUCT_ID) }, |
| 175 | { USB_DEVICE(MTS_VENDOR_ID, MTS_EDGE_PRODUCT_ID) }, |
Alex Manoussakis | cdc0483 | 2010-04-22 15:18:20 -0700 | [diff] [blame] | 176 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234MU_PRODUCT_ID) }, |
| 177 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBA_PRODUCT_ID) }, |
| 178 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBAOLD_PRODUCT_ID) }, |
Oliver Neukum | 1a1fab51 | 2009-01-12 13:31:16 +0100 | [diff] [blame] | 179 | { USB_DEVICE(IBM_VENDOR_ID, IBM_4543_PRODUCT_ID) }, |
Oliver Neukum | 97dcf04 | 2009-02-04 16:38:33 +0100 | [diff] [blame] | 180 | { USB_DEVICE(IBM_VENDOR_ID, IBM_454B_PRODUCT_ID) }, |
| 181 | { USB_DEVICE(IBM_VENDOR_ID, IBM_454C_PRODUCT_ID) }, |
Andrew Lunn | 7fd2570 | 2012-02-20 09:31:57 +0100 | [diff] [blame] | 182 | { USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_PRODUCT_ID) }, |
Darren Hart | 975dc33 | 2012-05-11 13:56:57 -0700 | [diff] [blame] | 183 | { USB_DEVICE(TI_VENDOR_ID, FRI2_PRODUCT_ID) }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 184 | }; |
| 185 | |
Oliver Neukum | 97dcf04 | 2009-02-04 16:38:33 +0100 | [diff] [blame] | 186 | static struct usb_device_id ti_id_table_5052[5+TI_EXTRA_VID_PID_COUNT+1] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 187 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_BOOT_PRODUCT_ID) }, |
| 188 | { USB_DEVICE(TI_VENDOR_ID, TI_5152_BOOT_PRODUCT_ID) }, |
| 189 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_EEPROM_PRODUCT_ID) }, |
| 190 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_FIRMWARE_PRODUCT_ID) }, |
| 191 | }; |
| 192 | |
Darren Hart | 975dc33 | 2012-05-11 13:56:57 -0700 | [diff] [blame] | 193 | static struct usb_device_id ti_id_table_combined[19+2*TI_EXTRA_VID_PID_COUNT+1] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 194 | { USB_DEVICE(TI_VENDOR_ID, TI_3410_PRODUCT_ID) }, |
Oleg Verych | 1f54a6a | 2006-11-17 08:21:27 +0000 | [diff] [blame] | 195 | { USB_DEVICE(TI_VENDOR_ID, TI_3410_EZ430_ID) }, |
Chris Adams | cb7a7c6 | 2009-01-11 19:49:00 +0000 | [diff] [blame] | 196 | { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_NO_FW_PRODUCT_ID) }, |
| 197 | { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_NO_FW_PRODUCT_ID) }, |
| 198 | { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_PRODUCT_ID) }, |
| 199 | { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_PRODUCT_ID) }, |
| 200 | { USB_DEVICE(MTS_VENDOR_ID, MTS_EDGE_PRODUCT_ID) }, |
Alex Manoussakis | cdc0483 | 2010-04-22 15:18:20 -0700 | [diff] [blame] | 201 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234MU_PRODUCT_ID) }, |
| 202 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBA_PRODUCT_ID) }, |
| 203 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBAOLD_PRODUCT_ID) }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 204 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_BOOT_PRODUCT_ID) }, |
| 205 | { USB_DEVICE(TI_VENDOR_ID, TI_5152_BOOT_PRODUCT_ID) }, |
| 206 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_EEPROM_PRODUCT_ID) }, |
| 207 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_FIRMWARE_PRODUCT_ID) }, |
Oliver Neukum | 1a1fab51 | 2009-01-12 13:31:16 +0100 | [diff] [blame] | 208 | { USB_DEVICE(IBM_VENDOR_ID, IBM_4543_PRODUCT_ID) }, |
Oliver Neukum | 97dcf04 | 2009-02-04 16:38:33 +0100 | [diff] [blame] | 209 | { USB_DEVICE(IBM_VENDOR_ID, IBM_454B_PRODUCT_ID) }, |
| 210 | { USB_DEVICE(IBM_VENDOR_ID, IBM_454C_PRODUCT_ID) }, |
Andrew Lunn | 7fd2570 | 2012-02-20 09:31:57 +0100 | [diff] [blame] | 211 | { USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_PRODUCT_ID) }, |
Darren Hart | 975dc33 | 2012-05-11 13:56:57 -0700 | [diff] [blame] | 212 | { USB_DEVICE(TI_VENDOR_ID, FRI2_PRODUCT_ID) }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 213 | { } |
| 214 | }; |
| 215 | |
Greg Kroah-Hartman | ea65370 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 216 | static struct usb_serial_driver ti_1port_device = { |
Greg Kroah-Hartman | 18fcac3 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 217 | .driver = { |
Greg Kroah-Hartman | 269bda1 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 218 | .owner = THIS_MODULE, |
| 219 | .name = "ti_usb_3410_5052_1", |
Greg Kroah-Hartman | 18fcac3 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 220 | }, |
Greg Kroah-Hartman | 269bda1 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 221 | .description = "TI USB 3410 1 port adapter", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 222 | .id_table = ti_id_table_3410, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 223 | .num_ports = 1, |
| 224 | .attach = ti_startup, |
Alan Stern | f9c99bb | 2009-06-02 11:53:55 -0400 | [diff] [blame] | 225 | .release = ti_release, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 226 | .open = ti_open, |
| 227 | .close = ti_close, |
| 228 | .write = ti_write, |
| 229 | .write_room = ti_write_room, |
| 230 | .chars_in_buffer = ti_chars_in_buffer, |
| 231 | .throttle = ti_throttle, |
| 232 | .unthrottle = ti_unthrottle, |
| 233 | .ioctl = ti_ioctl, |
| 234 | .set_termios = ti_set_termios, |
| 235 | .tiocmget = ti_tiocmget, |
| 236 | .tiocmset = ti_tiocmset, |
Alan Cox | 0bca1b9 | 2010-09-16 18:21:40 +0100 | [diff] [blame] | 237 | .get_icount = ti_get_icount, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 238 | .break_ctl = ti_break, |
| 239 | .read_int_callback = ti_interrupt_callback, |
| 240 | .read_bulk_callback = ti_bulk_in_callback, |
| 241 | .write_bulk_callback = ti_bulk_out_callback, |
| 242 | }; |
| 243 | |
Greg Kroah-Hartman | ea65370 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 244 | static struct usb_serial_driver ti_2port_device = { |
Greg Kroah-Hartman | 18fcac3 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 245 | .driver = { |
Greg Kroah-Hartman | 269bda1 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 246 | .owner = THIS_MODULE, |
| 247 | .name = "ti_usb_3410_5052_2", |
Greg Kroah-Hartman | 18fcac3 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 248 | }, |
Greg Kroah-Hartman | 269bda1 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 249 | .description = "TI USB 5052 2 port adapter", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 250 | .id_table = ti_id_table_5052, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 251 | .num_ports = 2, |
| 252 | .attach = ti_startup, |
Alan Stern | f9c99bb | 2009-06-02 11:53:55 -0400 | [diff] [blame] | 253 | .release = ti_release, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 254 | .open = ti_open, |
| 255 | .close = ti_close, |
| 256 | .write = ti_write, |
| 257 | .write_room = ti_write_room, |
| 258 | .chars_in_buffer = ti_chars_in_buffer, |
| 259 | .throttle = ti_throttle, |
| 260 | .unthrottle = ti_unthrottle, |
| 261 | .ioctl = ti_ioctl, |
| 262 | .set_termios = ti_set_termios, |
| 263 | .tiocmget = ti_tiocmget, |
| 264 | .tiocmset = ti_tiocmset, |
Alan Cox | 0bca1b9 | 2010-09-16 18:21:40 +0100 | [diff] [blame] | 265 | .get_icount = ti_get_icount, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 266 | .break_ctl = ti_break, |
| 267 | .read_int_callback = ti_interrupt_callback, |
| 268 | .read_bulk_callback = ti_bulk_in_callback, |
| 269 | .write_bulk_callback = ti_bulk_out_callback, |
| 270 | }; |
| 271 | |
Alan Stern | 29618e9 | 2012-02-23 14:57:32 -0500 | [diff] [blame] | 272 | static struct usb_serial_driver * const serial_drivers[] = { |
| 273 | &ti_1port_device, &ti_2port_device, NULL |
| 274 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 275 | |
| 276 | /* Module */ |
| 277 | |
| 278 | MODULE_AUTHOR(TI_DRIVER_AUTHOR); |
| 279 | MODULE_DESCRIPTION(TI_DRIVER_DESC); |
| 280 | MODULE_VERSION(TI_DRIVER_VERSION); |
| 281 | MODULE_LICENSE("GPL"); |
| 282 | |
David Woodhouse | 5f24e2d | 2008-05-30 18:49:51 +0300 | [diff] [blame] | 283 | MODULE_FIRMWARE("ti_3410.fw"); |
| 284 | MODULE_FIRMWARE("ti_5052.fw"); |
Chris Adams | 7df5231 | 2009-01-11 19:49:11 +0000 | [diff] [blame] | 285 | MODULE_FIRMWARE("mts_cdma.fw"); |
| 286 | MODULE_FIRMWARE("mts_gsm.fw"); |
| 287 | MODULE_FIRMWARE("mts_edge.fw"); |
Alex Manoussakis | cdc0483 | 2010-04-22 15:18:20 -0700 | [diff] [blame] | 288 | MODULE_FIRMWARE("mts_mt9234mu.fw"); |
| 289 | MODULE_FIRMWARE("mts_mt9234zba.fw"); |
David Woodhouse | 5f24e2d | 2008-05-30 18:49:51 +0300 | [diff] [blame] | 290 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 291 | module_param(debug, bool, S_IRUGO | S_IWUSR); |
| 292 | MODULE_PARM_DESC(debug, "Enable debugging, 0=no, 1=yes"); |
| 293 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 294 | module_param(closing_wait, int, S_IRUGO | S_IWUSR); |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 295 | MODULE_PARM_DESC(closing_wait, |
| 296 | "Maximum wait for data to drain in close, in .01 secs, default is 4000"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 297 | |
| 298 | module_param_array(vendor_3410, ushort, &vendor_3410_count, S_IRUGO); |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 299 | MODULE_PARM_DESC(vendor_3410, |
| 300 | "Vendor ids for 3410 based devices, 1-5 short integers"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 301 | module_param_array(product_3410, ushort, &product_3410_count, S_IRUGO); |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 302 | MODULE_PARM_DESC(product_3410, |
| 303 | "Product ids for 3410 based devices, 1-5 short integers"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 304 | module_param_array(vendor_5052, ushort, &vendor_5052_count, S_IRUGO); |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 305 | MODULE_PARM_DESC(vendor_5052, |
| 306 | "Vendor ids for 5052 based devices, 1-5 short integers"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 307 | module_param_array(product_5052, ushort, &product_5052_count, S_IRUGO); |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 308 | MODULE_PARM_DESC(product_5052, |
| 309 | "Product ids for 5052 based devices, 1-5 short integers"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 310 | |
| 311 | MODULE_DEVICE_TABLE(usb, ti_id_table_combined); |
| 312 | |
| 313 | |
| 314 | /* Functions */ |
| 315 | |
| 316 | static int __init ti_init(void) |
| 317 | { |
Chris Adams | 05a3d90 | 2009-01-11 19:48:53 +0000 | [diff] [blame] | 318 | int i, j, c; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 319 | int ret; |
| 320 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 321 | /* insert extra vendor and product ids */ |
Chris Adams | 05a3d90 | 2009-01-11 19:48:53 +0000 | [diff] [blame] | 322 | c = ARRAY_SIZE(ti_id_table_combined) - 2 * TI_EXTRA_VID_PID_COUNT - 1; |
Tobias Klauser | 52950ed | 2005-12-11 16:20:08 +0100 | [diff] [blame] | 323 | j = ARRAY_SIZE(ti_id_table_3410) - TI_EXTRA_VID_PID_COUNT - 1; |
Chris Adams | 05a3d90 | 2009-01-11 19:48:53 +0000 | [diff] [blame] | 324 | for (i = 0; i < min(vendor_3410_count, product_3410_count); i++, j++, c++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 325 | ti_id_table_3410[j].idVendor = vendor_3410[i]; |
| 326 | ti_id_table_3410[j].idProduct = product_3410[i]; |
| 327 | ti_id_table_3410[j].match_flags = USB_DEVICE_ID_MATCH_DEVICE; |
Chris Adams | 05a3d90 | 2009-01-11 19:48:53 +0000 | [diff] [blame] | 328 | ti_id_table_combined[c].idVendor = vendor_3410[i]; |
| 329 | ti_id_table_combined[c].idProduct = product_3410[i]; |
| 330 | ti_id_table_combined[c].match_flags = USB_DEVICE_ID_MATCH_DEVICE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 331 | } |
Tobias Klauser | 52950ed | 2005-12-11 16:20:08 +0100 | [diff] [blame] | 332 | j = ARRAY_SIZE(ti_id_table_5052) - TI_EXTRA_VID_PID_COUNT - 1; |
Chris Adams | 05a3d90 | 2009-01-11 19:48:53 +0000 | [diff] [blame] | 333 | for (i = 0; i < min(vendor_5052_count, product_5052_count); i++, j++, c++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 334 | ti_id_table_5052[j].idVendor = vendor_5052[i]; |
| 335 | ti_id_table_5052[j].idProduct = product_5052[i]; |
| 336 | ti_id_table_5052[j].match_flags = USB_DEVICE_ID_MATCH_DEVICE; |
Chris Adams | 05a3d90 | 2009-01-11 19:48:53 +0000 | [diff] [blame] | 337 | ti_id_table_combined[c].idVendor = vendor_5052[i]; |
| 338 | ti_id_table_combined[c].idProduct = product_5052[i]; |
| 339 | ti_id_table_combined[c].match_flags = USB_DEVICE_ID_MATCH_DEVICE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 340 | } |
| 341 | |
Greg Kroah-Hartman | 68e2411 | 2012-05-08 15:46:14 -0700 | [diff] [blame] | 342 | ret = usb_serial_register_drivers(serial_drivers, KBUILD_MODNAME, ti_id_table_combined); |
Alan Stern | 29618e9 | 2012-02-23 14:57:32 -0500 | [diff] [blame] | 343 | if (ret == 0) |
| 344 | printk(KERN_INFO KBUILD_MODNAME ": " TI_DRIVER_VERSION ":" |
| 345 | TI_DRIVER_DESC "\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 346 | return ret; |
| 347 | } |
| 348 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 349 | static void __exit ti_exit(void) |
| 350 | { |
Greg Kroah-Hartman | 68e2411 | 2012-05-08 15:46:14 -0700 | [diff] [blame] | 351 | usb_serial_deregister_drivers(serial_drivers); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 352 | } |
| 353 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 354 | module_init(ti_init); |
| 355 | module_exit(ti_exit); |
| 356 | |
| 357 | |
| 358 | static int ti_startup(struct usb_serial *serial) |
| 359 | { |
| 360 | struct ti_device *tdev; |
| 361 | struct ti_port *tport; |
| 362 | struct usb_device *dev = serial->dev; |
| 363 | int status; |
| 364 | int i; |
| 365 | |
| 366 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 367 | dev_dbg(&dev->dev, |
| 368 | "%s - product 0x%4X, num configurations %d, configuration value %d", |
| 369 | __func__, le16_to_cpu(dev->descriptor.idProduct), |
| 370 | dev->descriptor.bNumConfigurations, |
| 371 | dev->actconfig->desc.bConfigurationValue); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 372 | |
| 373 | /* create device structure */ |
Eric Sesterhenn | 80b6ca4 | 2006-02-27 21:29:43 +0100 | [diff] [blame] | 374 | tdev = kzalloc(sizeof(struct ti_device), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 375 | if (tdev == NULL) { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 376 | dev_err(&dev->dev, "%s - out of memory\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 377 | return -ENOMEM; |
| 378 | } |
Matthias Kaehlcke | 9da0068 | 2007-11-21 15:13:16 -0800 | [diff] [blame] | 379 | mutex_init(&tdev->td_open_close_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 380 | tdev->td_serial = serial; |
| 381 | usb_set_serial_data(serial, tdev); |
| 382 | |
| 383 | /* determine device type */ |
| 384 | if (usb_match_id(serial->interface, ti_id_table_3410)) |
| 385 | tdev->td_is_3410 = 1; |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 386 | dev_dbg(&dev->dev, "%s - device type is %s\n", __func__, |
| 387 | tdev->td_is_3410 ? "3410" : "5052"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 388 | |
| 389 | /* if we have only 1 configuration, download firmware */ |
| 390 | if (dev->descriptor.bNumConfigurations == 1) { |
Adhir Ramjiawan | 72b27a0 | 2012-04-09 14:01:38 +0200 | [diff] [blame] | 391 | status = ti_download_firmware(tdev); |
| 392 | |
| 393 | if (status != 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 394 | goto free_tdev; |
| 395 | |
| 396 | /* 3410 must be reset, 5052 resets itself */ |
| 397 | if (tdev->td_is_3410) { |
| 398 | msleep_interruptible(100); |
| 399 | usb_reset_device(dev); |
| 400 | } |
| 401 | |
| 402 | status = -ENODEV; |
| 403 | goto free_tdev; |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 404 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 405 | |
Oliver Neukum | 413ba6f | 2008-12-16 12:25:55 +0100 | [diff] [blame] | 406 | /* the second configuration must be set */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 407 | if (dev->actconfig->desc.bConfigurationValue == TI_BOOT_CONFIG) { |
Oliver Neukum | 413ba6f | 2008-12-16 12:25:55 +0100 | [diff] [blame] | 408 | status = usb_driver_set_configuration(dev, TI_ACTIVE_CONFIG); |
| 409 | status = status ? status : -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 410 | goto free_tdev; |
| 411 | } |
| 412 | |
| 413 | /* set up port structures */ |
| 414 | for (i = 0; i < serial->num_ports; ++i) { |
Burman Yan | 7ac9da1 | 2006-11-22 20:54:38 +0200 | [diff] [blame] | 415 | tport = kzalloc(sizeof(struct ti_port), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 416 | if (tport == NULL) { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 417 | dev_err(&dev->dev, "%s - out of memory\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 418 | status = -ENOMEM; |
| 419 | goto free_tports; |
| 420 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 421 | spin_lock_init(&tport->tp_lock); |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 422 | tport->tp_uart_base_addr = (i == 0 ? |
| 423 | TI_UART1_BASE_ADDR : TI_UART2_BASE_ADDR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 424 | tport->tp_closing_wait = closing_wait; |
| 425 | init_waitqueue_head(&tport->tp_msr_wait); |
| 426 | init_waitqueue_head(&tport->tp_write_wait); |
Johan Hovold | 074ef65 | 2010-05-19 00:01:35 +0200 | [diff] [blame] | 427 | if (kfifo_alloc(&tport->write_fifo, TI_WRITE_BUF_SIZE, |
| 428 | GFP_KERNEL)) { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 429 | dev_err(&dev->dev, "%s - out of memory\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 430 | kfree(tport); |
| 431 | status = -ENOMEM; |
| 432 | goto free_tports; |
| 433 | } |
| 434 | tport->tp_port = serial->port[i]; |
| 435 | tport->tp_tdev = tdev; |
| 436 | usb_set_serial_port_data(serial->port[i], tport); |
| 437 | tport->tp_uart_mode = 0; /* default is RS232 */ |
| 438 | } |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 439 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 440 | return 0; |
| 441 | |
| 442 | free_tports: |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 443 | for (--i; i >= 0; --i) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 444 | tport = usb_get_serial_port_data(serial->port[i]); |
Johan Hovold | 074ef65 | 2010-05-19 00:01:35 +0200 | [diff] [blame] | 445 | kfifo_free(&tport->write_fifo); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 446 | kfree(tport); |
| 447 | usb_set_serial_port_data(serial->port[i], NULL); |
| 448 | } |
| 449 | free_tdev: |
| 450 | kfree(tdev); |
| 451 | usb_set_serial_data(serial, NULL); |
| 452 | return status; |
| 453 | } |
| 454 | |
| 455 | |
Alan Stern | f9c99bb | 2009-06-02 11:53:55 -0400 | [diff] [blame] | 456 | static void ti_release(struct usb_serial *serial) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 457 | { |
| 458 | int i; |
| 459 | struct ti_device *tdev = usb_get_serial_data(serial); |
| 460 | struct ti_port *tport; |
| 461 | |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 462 | for (i = 0; i < serial->num_ports; ++i) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 463 | tport = usb_get_serial_port_data(serial->port[i]); |
| 464 | if (tport) { |
Johan Hovold | 074ef65 | 2010-05-19 00:01:35 +0200 | [diff] [blame] | 465 | kfifo_free(&tport->write_fifo); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 466 | kfree(tport); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 467 | } |
| 468 | } |
| 469 | |
Jesper Juhl | 1bc3c9e | 2005-04-18 17:39:34 -0700 | [diff] [blame] | 470 | kfree(tdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 471 | } |
| 472 | |
| 473 | |
Alan Cox | a509a7e | 2009-09-19 13:13:26 -0700 | [diff] [blame] | 474 | static int ti_open(struct tty_struct *tty, struct usb_serial_port *port) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 475 | { |
| 476 | struct ti_port *tport = usb_get_serial_port_data(port); |
| 477 | struct ti_device *tdev; |
| 478 | struct usb_device *dev; |
| 479 | struct urb *urb; |
| 480 | int port_number; |
| 481 | int status; |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 482 | __u16 open_settings = (__u8)(TI_PIPE_MODE_CONTINOUS | |
| 483 | TI_PIPE_TIMEOUT_ENABLE | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 484 | (TI_TRANSFER_TIMEOUT << 2)); |
| 485 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 486 | if (tport == NULL) |
| 487 | return -ENODEV; |
| 488 | |
| 489 | dev = port->serial->dev; |
| 490 | tdev = tport->tp_tdev; |
| 491 | |
| 492 | /* only one open on any port on a device at a time */ |
Matthias Kaehlcke | 9da0068 | 2007-11-21 15:13:16 -0800 | [diff] [blame] | 493 | if (mutex_lock_interruptible(&tdev->td_open_close_lock)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 494 | return -ERESTARTSYS; |
| 495 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 496 | port_number = port->number - port->serial->minor; |
| 497 | |
| 498 | memset(&(tport->tp_icount), 0x00, sizeof(tport->tp_icount)); |
| 499 | |
| 500 | tport->tp_msr = 0; |
| 501 | tport->tp_shadow_mcr |= (TI_MCR_RTS | TI_MCR_DTR); |
| 502 | |
| 503 | /* start interrupt urb the first time a port is opened on this device */ |
| 504 | if (tdev->td_open_port_count == 0) { |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 505 | dev_dbg(&port->dev, "%s - start interrupt in urb\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 506 | urb = tdev->td_serial->port[0]->interrupt_in_urb; |
| 507 | if (!urb) { |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 508 | dev_err(&port->dev, "%s - no interrupt urb\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 509 | status = -EINVAL; |
Matthias Kaehlcke | 9da0068 | 2007-11-21 15:13:16 -0800 | [diff] [blame] | 510 | goto release_lock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 511 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 512 | urb->context = tdev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 513 | status = usb_submit_urb(urb, GFP_KERNEL); |
| 514 | if (status) { |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 515 | dev_err(&port->dev, "%s - submit interrupt urb failed, %d\n", __func__, status); |
Matthias Kaehlcke | 9da0068 | 2007-11-21 15:13:16 -0800 | [diff] [blame] | 516 | goto release_lock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 517 | } |
| 518 | } |
| 519 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 520 | if (tty) |
| 521 | ti_set_termios(tty, port, tty->termios); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 522 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 523 | dev_dbg(&port->dev, "%s - sending TI_OPEN_PORT\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 524 | status = ti_command_out_sync(tdev, TI_OPEN_PORT, |
| 525 | (__u8)(TI_UART1_PORT + port_number), open_settings, NULL, 0); |
| 526 | if (status) { |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 527 | dev_err(&port->dev, "%s - cannot send open command, %d\n", |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 528 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 529 | goto unlink_int_urb; |
| 530 | } |
| 531 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 532 | dev_dbg(&port->dev, "%s - sending TI_START_PORT\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 533 | status = ti_command_out_sync(tdev, TI_START_PORT, |
| 534 | (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0); |
| 535 | if (status) { |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 536 | dev_err(&port->dev, "%s - cannot send start command, %d\n", |
| 537 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 538 | goto unlink_int_urb; |
| 539 | } |
| 540 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 541 | dev_dbg(&port->dev, "%s - sending TI_PURGE_PORT\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 542 | status = ti_command_out_sync(tdev, TI_PURGE_PORT, |
| 543 | (__u8)(TI_UART1_PORT + port_number), TI_PURGE_INPUT, NULL, 0); |
| 544 | if (status) { |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 545 | dev_err(&port->dev, "%s - cannot clear input buffers, %d\n", |
| 546 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 547 | goto unlink_int_urb; |
| 548 | } |
| 549 | status = ti_command_out_sync(tdev, TI_PURGE_PORT, |
| 550 | (__u8)(TI_UART1_PORT + port_number), TI_PURGE_OUTPUT, NULL, 0); |
| 551 | if (status) { |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 552 | dev_err(&port->dev, "%s - cannot clear output buffers, %d\n", |
| 553 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 554 | goto unlink_int_urb; |
| 555 | } |
| 556 | |
| 557 | /* reset the data toggle on the bulk endpoints to work around bug in |
| 558 | * host controllers where things get out of sync some times */ |
| 559 | usb_clear_halt(dev, port->write_urb->pipe); |
| 560 | usb_clear_halt(dev, port->read_urb->pipe); |
| 561 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 562 | if (tty) |
| 563 | ti_set_termios(tty, port, tty->termios); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 564 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 565 | dev_dbg(&port->dev, "%s - sending TI_OPEN_PORT (2)\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 566 | status = ti_command_out_sync(tdev, TI_OPEN_PORT, |
| 567 | (__u8)(TI_UART1_PORT + port_number), open_settings, NULL, 0); |
| 568 | if (status) { |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 569 | dev_err(&port->dev, "%s - cannot send open command (2), %d\n", |
| 570 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 571 | goto unlink_int_urb; |
| 572 | } |
| 573 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 574 | dev_dbg(&port->dev, "%s - sending TI_START_PORT (2)\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 575 | status = ti_command_out_sync(tdev, TI_START_PORT, |
| 576 | (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0); |
| 577 | if (status) { |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 578 | dev_err(&port->dev, "%s - cannot send start command (2), %d\n", |
| 579 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 580 | goto unlink_int_urb; |
| 581 | } |
| 582 | |
| 583 | /* start read urb */ |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 584 | dev_dbg(&port->dev, "%s - start read urb\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 585 | urb = port->read_urb; |
| 586 | if (!urb) { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 587 | dev_err(&port->dev, "%s - no read urb\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 588 | status = -EINVAL; |
| 589 | goto unlink_int_urb; |
| 590 | } |
| 591 | tport->tp_read_urb_state = TI_READ_URB_RUNNING; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 592 | urb->context = tport; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 593 | status = usb_submit_urb(urb, GFP_KERNEL); |
| 594 | if (status) { |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 595 | dev_err(&port->dev, "%s - submit read urb failed, %d\n", |
| 596 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 597 | goto unlink_int_urb; |
| 598 | } |
| 599 | |
| 600 | tport->tp_is_open = 1; |
| 601 | ++tdev->td_open_port_count; |
| 602 | |
Matthias Kaehlcke | 9da0068 | 2007-11-21 15:13:16 -0800 | [diff] [blame] | 603 | goto release_lock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 604 | |
| 605 | unlink_int_urb: |
| 606 | if (tdev->td_open_port_count == 0) |
| 607 | usb_kill_urb(port->serial->port[0]->interrupt_in_urb); |
Matthias Kaehlcke | 9da0068 | 2007-11-21 15:13:16 -0800 | [diff] [blame] | 608 | release_lock: |
| 609 | mutex_unlock(&tdev->td_open_close_lock); |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 610 | dev_dbg(&port->dev, "%s - exit %d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 611 | return status; |
| 612 | } |
| 613 | |
| 614 | |
Alan Cox | 335f851 | 2009-06-11 12:26:29 +0100 | [diff] [blame] | 615 | static void ti_close(struct usb_serial_port *port) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 616 | { |
| 617 | struct ti_device *tdev; |
| 618 | struct ti_port *tport; |
| 619 | int port_number; |
| 620 | int status; |
Matthias Kaehlcke | 9da0068 | 2007-11-21 15:13:16 -0800 | [diff] [blame] | 621 | int do_unlock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 622 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 623 | tdev = usb_get_serial_data(port->serial); |
| 624 | tport = usb_get_serial_port_data(port); |
| 625 | if (tdev == NULL || tport == NULL) |
| 626 | return; |
| 627 | |
| 628 | tport->tp_is_open = 0; |
| 629 | |
| 630 | ti_drain(tport, (tport->tp_closing_wait*HZ)/100, 1); |
| 631 | |
| 632 | usb_kill_urb(port->read_urb); |
| 633 | usb_kill_urb(port->write_urb); |
| 634 | tport->tp_write_urb_in_use = 0; |
| 635 | |
| 636 | port_number = port->number - port->serial->minor; |
| 637 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 638 | dev_dbg(&port->dev, "%s - sending TI_CLOSE_PORT\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 639 | status = ti_command_out_sync(tdev, TI_CLOSE_PORT, |
| 640 | (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0); |
| 641 | if (status) |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 642 | dev_err(&port->dev, |
| 643 | "%s - cannot send close port command, %d\n" |
| 644 | , __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 645 | |
Matthias Kaehlcke | 9da0068 | 2007-11-21 15:13:16 -0800 | [diff] [blame] | 646 | /* if mutex_lock is interrupted, continue anyway */ |
| 647 | do_unlock = !mutex_lock_interruptible(&tdev->td_open_close_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 648 | --tport->tp_tdev->td_open_port_count; |
| 649 | if (tport->tp_tdev->td_open_port_count <= 0) { |
| 650 | /* last port is closed, shut down interrupt urb */ |
| 651 | usb_kill_urb(port->serial->port[0]->interrupt_in_urb); |
| 652 | tport->tp_tdev->td_open_port_count = 0; |
| 653 | } |
Matthias Kaehlcke | 9da0068 | 2007-11-21 15:13:16 -0800 | [diff] [blame] | 654 | if (do_unlock) |
| 655 | mutex_unlock(&tdev->td_open_close_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 656 | } |
| 657 | |
| 658 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 659 | static int ti_write(struct tty_struct *tty, struct usb_serial_port *port, |
| 660 | const unsigned char *data, int count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 661 | { |
| 662 | struct ti_port *tport = usb_get_serial_port_data(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 663 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 664 | if (count == 0) { |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 665 | dev_dbg(&port->dev, "%s - write request of 0 bytes\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 666 | return 0; |
| 667 | } |
| 668 | |
| 669 | if (tport == NULL || !tport->tp_is_open) |
| 670 | return -ENODEV; |
| 671 | |
Johan Hovold | 074ef65 | 2010-05-19 00:01:35 +0200 | [diff] [blame] | 672 | count = kfifo_in_locked(&tport->write_fifo, data, count, |
| 673 | &tport->tp_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 674 | ti_send(tport); |
| 675 | |
| 676 | return count; |
| 677 | } |
| 678 | |
| 679 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 680 | static int ti_write_room(struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 681 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 682 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 683 | struct ti_port *tport = usb_get_serial_port_data(port); |
| 684 | int room = 0; |
| 685 | unsigned long flags; |
| 686 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 687 | if (tport == NULL) |
Alan Cox | 23198fd | 2009-07-20 16:05:27 +0100 | [diff] [blame] | 688 | return 0; |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 689 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 690 | spin_lock_irqsave(&tport->tp_lock, flags); |
Johan Hovold | 074ef65 | 2010-05-19 00:01:35 +0200 | [diff] [blame] | 691 | room = kfifo_avail(&tport->write_fifo); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 692 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
| 693 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 694 | dev_dbg(&port->dev, "%s - returns %d\n", __func__, room); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 695 | return room; |
| 696 | } |
| 697 | |
| 698 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 699 | static int ti_chars_in_buffer(struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 700 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 701 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 702 | struct ti_port *tport = usb_get_serial_port_data(port); |
| 703 | int chars = 0; |
| 704 | unsigned long flags; |
| 705 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 706 | if (tport == NULL) |
Alan Cox | 23198fd | 2009-07-20 16:05:27 +0100 | [diff] [blame] | 707 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 708 | |
| 709 | spin_lock_irqsave(&tport->tp_lock, flags); |
Johan Hovold | 074ef65 | 2010-05-19 00:01:35 +0200 | [diff] [blame] | 710 | chars = kfifo_len(&tport->write_fifo); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 711 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
| 712 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 713 | dev_dbg(&port->dev, "%s - returns %d\n", __func__, chars); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 714 | return chars; |
| 715 | } |
| 716 | |
| 717 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 718 | static void ti_throttle(struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 719 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 720 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 721 | struct ti_port *tport = usb_get_serial_port_data(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 722 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 723 | if (tport == NULL) |
| 724 | return; |
| 725 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 726 | if (I_IXOFF(tty) || C_CRTSCTS(tty)) |
| 727 | ti_stop_read(tport, tty); |
| 728 | |
| 729 | } |
| 730 | |
| 731 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 732 | static void ti_unthrottle(struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 733 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 734 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 735 | struct ti_port *tport = usb_get_serial_port_data(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 736 | int status; |
| 737 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 738 | if (tport == NULL) |
| 739 | return; |
| 740 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 741 | if (I_IXOFF(tty) || C_CRTSCTS(tty)) { |
| 742 | status = ti_restart_read(tport, tty); |
| 743 | if (status) |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 744 | dev_err(&port->dev, "%s - cannot restart read, %d\n", |
| 745 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 746 | } |
| 747 | } |
| 748 | |
Alan Cox | 0bca1b9 | 2010-09-16 18:21:40 +0100 | [diff] [blame] | 749 | static int ti_get_icount(struct tty_struct *tty, |
| 750 | struct serial_icounter_struct *icount) |
| 751 | { |
| 752 | struct usb_serial_port *port = tty->driver_data; |
| 753 | struct ti_port *tport = usb_get_serial_port_data(port); |
| 754 | struct async_icount cnow = tport->tp_icount; |
| 755 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 756 | dev_dbg(&port->dev, "%s - TIOCGICOUNT RX=%d, TX=%d\n", __func__, |
Alan Cox | 0bca1b9 | 2010-09-16 18:21:40 +0100 | [diff] [blame] | 757 | cnow.rx, cnow.tx); |
| 758 | |
| 759 | icount->cts = cnow.cts; |
| 760 | icount->dsr = cnow.dsr; |
| 761 | icount->rng = cnow.rng; |
| 762 | icount->dcd = cnow.dcd; |
| 763 | icount->rx = cnow.rx; |
| 764 | icount->tx = cnow.tx; |
| 765 | icount->frame = cnow.frame; |
| 766 | icount->overrun = cnow.overrun; |
| 767 | icount->parity = cnow.parity; |
| 768 | icount->brk = cnow.brk; |
| 769 | icount->buf_overrun = cnow.buf_overrun; |
| 770 | |
| 771 | return 0; |
| 772 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 773 | |
Alan Cox | 00a0d0d | 2011-02-14 16:27:06 +0000 | [diff] [blame] | 774 | static int ti_ioctl(struct tty_struct *tty, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 775 | unsigned int cmd, unsigned long arg) |
| 776 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 777 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 778 | struct ti_port *tport = usb_get_serial_port_data(port); |
| 779 | struct async_icount cnow; |
| 780 | struct async_icount cprev; |
| 781 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 782 | dev_dbg(&port->dev, "%s - cmd = 0x%04X\n", __func__, cmd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 783 | |
| 784 | if (tport == NULL) |
| 785 | return -ENODEV; |
| 786 | |
| 787 | switch (cmd) { |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 788 | case TIOCGSERIAL: |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 789 | dev_dbg(&port->dev, "%s - TIOCGSERIAL\n", __func__); |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 790 | return ti_get_serial_info(tport, |
| 791 | (struct serial_struct __user *)arg); |
| 792 | case TIOCSSERIAL: |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 793 | dev_dbg(&port->dev, "%s - TIOCSSERIAL\n", __func__); |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 794 | return ti_set_serial_info(tty, tport, |
| 795 | (struct serial_struct __user *)arg); |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 796 | case TIOCMIWAIT: |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 797 | dev_dbg(&port->dev, "%s - TIOCMIWAIT\n", __func__); |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 798 | cprev = tport->tp_icount; |
| 799 | while (1) { |
| 800 | interruptible_sleep_on(&tport->tp_msr_wait); |
| 801 | if (signal_pending(current)) |
| 802 | return -ERESTARTSYS; |
| 803 | cnow = tport->tp_icount; |
| 804 | if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr && |
| 805 | cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) |
| 806 | return -EIO; /* no change => error */ |
| 807 | if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) || |
| 808 | ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) || |
| 809 | ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) || |
| 810 | ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts))) |
| 811 | return 0; |
| 812 | cprev = cnow; |
| 813 | } |
| 814 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 815 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 816 | return -ENOIOCTLCMD; |
| 817 | } |
| 818 | |
| 819 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 820 | static void ti_set_termios(struct tty_struct *tty, |
| 821 | struct usb_serial_port *port, struct ktermios *old_termios) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 822 | { |
| 823 | struct ti_port *tport = usb_get_serial_port_data(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 824 | struct ti_uart_config *config; |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 825 | tcflag_t cflag, iflag; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 826 | int baud; |
| 827 | int status; |
| 828 | int port_number = port->number - port->serial->minor; |
| 829 | unsigned int mcr; |
| 830 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 831 | cflag = tty->termios->c_cflag; |
| 832 | iflag = tty->termios->c_iflag; |
| 833 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 834 | dev_dbg(&port->dev, "%s - cflag %08x, iflag %08x\n", __func__, cflag, iflag); |
| 835 | dev_dbg(&port->dev, "%s - old clfag %08x, old iflag %08x\n", __func__, |
| 836 | old_termios->c_cflag, old_termios->c_iflag); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 837 | |
| 838 | if (tport == NULL) |
| 839 | return; |
| 840 | |
| 841 | config = kmalloc(sizeof(*config), GFP_KERNEL); |
| 842 | if (!config) { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 843 | dev_err(&port->dev, "%s - out of memory\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 844 | return; |
| 845 | } |
| 846 | |
| 847 | config->wFlags = 0; |
| 848 | |
| 849 | /* these flags must be set */ |
| 850 | config->wFlags |= TI_UART_ENABLE_MS_INTS; |
| 851 | config->wFlags |= TI_UART_ENABLE_AUTO_START_DMA; |
| 852 | config->bUartMode = (__u8)(tport->tp_uart_mode); |
| 853 | |
| 854 | switch (cflag & CSIZE) { |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 855 | case CS5: |
| 856 | config->bDataBits = TI_UART_5_DATA_BITS; |
| 857 | break; |
| 858 | case CS6: |
| 859 | config->bDataBits = TI_UART_6_DATA_BITS; |
| 860 | break; |
| 861 | case CS7: |
| 862 | config->bDataBits = TI_UART_7_DATA_BITS; |
| 863 | break; |
| 864 | default: |
| 865 | case CS8: |
| 866 | config->bDataBits = TI_UART_8_DATA_BITS; |
| 867 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 868 | } |
| 869 | |
Alan Cox | 537699e | 2008-01-03 17:03:11 +0000 | [diff] [blame] | 870 | /* CMSPAR isn't supported by this driver */ |
| 871 | tty->termios->c_cflag &= ~CMSPAR; |
| 872 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 873 | if (cflag & PARENB) { |
| 874 | if (cflag & PARODD) { |
| 875 | config->wFlags |= TI_UART_ENABLE_PARITY_CHECKING; |
| 876 | config->bParity = TI_UART_ODD_PARITY; |
| 877 | } else { |
| 878 | config->wFlags |= TI_UART_ENABLE_PARITY_CHECKING; |
| 879 | config->bParity = TI_UART_EVEN_PARITY; |
| 880 | } |
| 881 | } else { |
| 882 | config->wFlags &= ~TI_UART_ENABLE_PARITY_CHECKING; |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 883 | config->bParity = TI_UART_NO_PARITY; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 884 | } |
| 885 | |
| 886 | if (cflag & CSTOPB) |
| 887 | config->bStopBits = TI_UART_2_STOP_BITS; |
| 888 | else |
| 889 | config->bStopBits = TI_UART_1_STOP_BITS; |
| 890 | |
| 891 | if (cflag & CRTSCTS) { |
| 892 | /* RTS flow control must be off to drop RTS for baud rate B0 */ |
| 893 | if ((cflag & CBAUD) != B0) |
| 894 | config->wFlags |= TI_UART_ENABLE_RTS_IN; |
| 895 | config->wFlags |= TI_UART_ENABLE_CTS_OUT; |
| 896 | } else { |
| 897 | tty->hw_stopped = 0; |
| 898 | ti_restart_read(tport, tty); |
| 899 | } |
| 900 | |
| 901 | if (I_IXOFF(tty) || I_IXON(tty)) { |
| 902 | config->cXon = START_CHAR(tty); |
| 903 | config->cXoff = STOP_CHAR(tty); |
| 904 | |
| 905 | if (I_IXOFF(tty)) |
| 906 | config->wFlags |= TI_UART_ENABLE_X_IN; |
| 907 | else |
| 908 | ti_restart_read(tport, tty); |
| 909 | |
| 910 | if (I_IXON(tty)) |
| 911 | config->wFlags |= TI_UART_ENABLE_X_OUT; |
| 912 | } |
| 913 | |
| 914 | baud = tty_get_baud_rate(tty); |
Alan Cox | 537699e | 2008-01-03 17:03:11 +0000 | [diff] [blame] | 915 | if (!baud) |
| 916 | baud = 9600; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 917 | if (tport->tp_tdev->td_is_3410) |
| 918 | config->wBaudRate = (__u16)((923077 + baud/2) / baud); |
| 919 | else |
| 920 | config->wBaudRate = (__u16)((461538 + baud/2) / baud); |
| 921 | |
Alan Cox | 537699e | 2008-01-03 17:03:11 +0000 | [diff] [blame] | 922 | /* FIXME: Should calculate resulting baud here and report it back */ |
| 923 | if ((cflag & CBAUD) != B0) |
| 924 | tty_encode_baud_rate(tty, baud, baud); |
| 925 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 926 | dev_dbg(&port->dev, |
| 927 | "%s - BaudRate=%d, wBaudRate=%d, wFlags=0x%04X, bDataBits=%d, bParity=%d, bStopBits=%d, cXon=%d, cXoff=%d, bUartMode=%d", |
| 928 | __func__, baud, config->wBaudRate, config->wFlags, |
| 929 | config->bDataBits, config->bParity, config->bStopBits, |
| 930 | config->cXon, config->cXoff, config->bUartMode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 931 | |
| 932 | cpu_to_be16s(&config->wBaudRate); |
| 933 | cpu_to_be16s(&config->wFlags); |
| 934 | |
| 935 | status = ti_command_out_sync(tport->tp_tdev, TI_SET_CONFIG, |
| 936 | (__u8)(TI_UART1_PORT + port_number), 0, (__u8 *)config, |
| 937 | sizeof(*config)); |
| 938 | if (status) |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 939 | dev_err(&port->dev, "%s - cannot set config on port %d, %d\n", |
| 940 | __func__, port_number, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 941 | |
| 942 | /* SET_CONFIG asserts RTS and DTR, reset them correctly */ |
| 943 | mcr = tport->tp_shadow_mcr; |
| 944 | /* if baud rate is B0, clear RTS and DTR */ |
| 945 | if ((cflag & CBAUD) == B0) |
| 946 | mcr &= ~(TI_MCR_DTR | TI_MCR_RTS); |
| 947 | status = ti_set_mcr(tport, mcr); |
| 948 | if (status) |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 949 | dev_err(&port->dev, |
| 950 | "%s - cannot set modem control on port %d, %d\n", |
| 951 | __func__, port_number, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 952 | |
| 953 | kfree(config); |
| 954 | } |
| 955 | |
| 956 | |
Alan Cox | 60b33c1 | 2011-02-14 16:26:14 +0000 | [diff] [blame] | 957 | static int ti_tiocmget(struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 958 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 959 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 960 | struct ti_port *tport = usb_get_serial_port_data(port); |
| 961 | unsigned int result; |
| 962 | unsigned int msr; |
| 963 | unsigned int mcr; |
Alan Cox | 04ca89d | 2008-02-20 21:41:40 +0000 | [diff] [blame] | 964 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 965 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 966 | if (tport == NULL) |
| 967 | return -ENODEV; |
| 968 | |
Alan Cox | 04ca89d | 2008-02-20 21:41:40 +0000 | [diff] [blame] | 969 | spin_lock_irqsave(&tport->tp_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 970 | msr = tport->tp_msr; |
| 971 | mcr = tport->tp_shadow_mcr; |
Alan Cox | 04ca89d | 2008-02-20 21:41:40 +0000 | [diff] [blame] | 972 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 973 | |
| 974 | result = ((mcr & TI_MCR_DTR) ? TIOCM_DTR : 0) |
| 975 | | ((mcr & TI_MCR_RTS) ? TIOCM_RTS : 0) |
| 976 | | ((mcr & TI_MCR_LOOP) ? TIOCM_LOOP : 0) |
| 977 | | ((msr & TI_MSR_CTS) ? TIOCM_CTS : 0) |
| 978 | | ((msr & TI_MSR_CD) ? TIOCM_CAR : 0) |
| 979 | | ((msr & TI_MSR_RI) ? TIOCM_RI : 0) |
| 980 | | ((msr & TI_MSR_DSR) ? TIOCM_DSR : 0); |
| 981 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 982 | dev_dbg(&port->dev, "%s - 0x%04X\n", __func__, result); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 983 | |
| 984 | return result; |
| 985 | } |
| 986 | |
| 987 | |
Alan Cox | 20b9d17 | 2011-02-14 16:26:50 +0000 | [diff] [blame] | 988 | static int ti_tiocmset(struct tty_struct *tty, |
| 989 | unsigned int set, unsigned int clear) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 990 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 991 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 992 | struct ti_port *tport = usb_get_serial_port_data(port); |
| 993 | unsigned int mcr; |
Alan Cox | 04ca89d | 2008-02-20 21:41:40 +0000 | [diff] [blame] | 994 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 995 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 996 | if (tport == NULL) |
| 997 | return -ENODEV; |
| 998 | |
Alan Cox | 04ca89d | 2008-02-20 21:41:40 +0000 | [diff] [blame] | 999 | spin_lock_irqsave(&tport->tp_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1000 | mcr = tport->tp_shadow_mcr; |
| 1001 | |
| 1002 | if (set & TIOCM_RTS) |
| 1003 | mcr |= TI_MCR_RTS; |
| 1004 | if (set & TIOCM_DTR) |
| 1005 | mcr |= TI_MCR_DTR; |
| 1006 | if (set & TIOCM_LOOP) |
| 1007 | mcr |= TI_MCR_LOOP; |
| 1008 | |
| 1009 | if (clear & TIOCM_RTS) |
| 1010 | mcr &= ~TI_MCR_RTS; |
| 1011 | if (clear & TIOCM_DTR) |
| 1012 | mcr &= ~TI_MCR_DTR; |
| 1013 | if (clear & TIOCM_LOOP) |
| 1014 | mcr &= ~TI_MCR_LOOP; |
Alan Cox | 04ca89d | 2008-02-20 21:41:40 +0000 | [diff] [blame] | 1015 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1016 | |
| 1017 | return ti_set_mcr(tport, mcr); |
| 1018 | } |
| 1019 | |
| 1020 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1021 | static void ti_break(struct tty_struct *tty, int break_state) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1022 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1023 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1024 | struct ti_port *tport = usb_get_serial_port_data(port); |
| 1025 | int status; |
| 1026 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 1027 | dev_dbg(&port->dev, "%s - state = %d\n", __func__, break_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1028 | |
| 1029 | if (tport == NULL) |
| 1030 | return; |
| 1031 | |
| 1032 | ti_drain(tport, (tport->tp_closing_wait*HZ)/100, 0); |
| 1033 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 1034 | status = ti_write_byte(port, tport->tp_tdev, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1035 | tport->tp_uart_base_addr + TI_UART_OFFSET_LCR, |
| 1036 | TI_LCR_BREAK, break_state == -1 ? TI_LCR_BREAK : 0); |
| 1037 | |
| 1038 | if (status) |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 1039 | dev_dbg(&port->dev, "%s - error setting break, %d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1040 | } |
| 1041 | |
| 1042 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 1043 | static void ti_interrupt_callback(struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1044 | { |
Ming Lei | cdc9779 | 2008-02-24 18:41:47 +0800 | [diff] [blame] | 1045 | struct ti_device *tdev = urb->context; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1046 | struct usb_serial_port *port; |
| 1047 | struct usb_serial *serial = tdev->td_serial; |
| 1048 | struct ti_port *tport; |
| 1049 | struct device *dev = &urb->dev->dev; |
| 1050 | unsigned char *data = urb->transfer_buffer; |
| 1051 | int length = urb->actual_length; |
| 1052 | int port_number; |
| 1053 | int function; |
Greg Kroah-Hartman | 52171b4 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1054 | int status = urb->status; |
| 1055 | int retval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1056 | __u8 msr; |
| 1057 | |
Greg Kroah-Hartman | 52171b4 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1058 | switch (status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1059 | case 0: |
| 1060 | break; |
| 1061 | case -ECONNRESET: |
| 1062 | case -ENOENT: |
| 1063 | case -ESHUTDOWN: |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 1064 | dev_dbg(dev, "%s - urb shutting down, %d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1065 | tdev->td_urb_error = 1; |
| 1066 | return; |
| 1067 | default: |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 1068 | dev_err(dev, "%s - nonzero urb status, %d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1069 | tdev->td_urb_error = 1; |
| 1070 | goto exit; |
| 1071 | } |
| 1072 | |
| 1073 | if (length != 2) { |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 1074 | dev_dbg(dev, "%s - bad packet size, %d\n", __func__, length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1075 | goto exit; |
| 1076 | } |
| 1077 | |
| 1078 | if (data[0] == TI_CODE_HARDWARE_ERROR) { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1079 | dev_err(dev, "%s - hardware error, %d\n", __func__, data[1]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1080 | goto exit; |
| 1081 | } |
| 1082 | |
| 1083 | port_number = TI_GET_PORT_FROM_CODE(data[0]); |
| 1084 | function = TI_GET_FUNC_FROM_CODE(data[0]); |
| 1085 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 1086 | dev_dbg(dev, "%s - port_number %d, function %d, data 0x%02X\n", |
| 1087 | __func__, port_number, function, data[1]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1088 | |
| 1089 | if (port_number >= serial->num_ports) { |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 1090 | dev_err(dev, "%s - bad port number, %d\n", |
| 1091 | __func__, port_number); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1092 | goto exit; |
| 1093 | } |
| 1094 | |
| 1095 | port = serial->port[port_number]; |
| 1096 | |
| 1097 | tport = usb_get_serial_port_data(port); |
| 1098 | if (!tport) |
| 1099 | goto exit; |
| 1100 | |
| 1101 | switch (function) { |
| 1102 | case TI_CODE_DATA_ERROR: |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 1103 | dev_err(dev, "%s - DATA ERROR, port %d, data 0x%02X\n", |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 1104 | __func__, port_number, data[1]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1105 | break; |
| 1106 | |
| 1107 | case TI_CODE_MODEM_STATUS: |
| 1108 | msr = data[1]; |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 1109 | dev_dbg(dev, "%s - port %d, msr 0x%02X\n", __func__, port_number, msr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1110 | ti_handle_new_msr(tport, msr); |
| 1111 | break; |
| 1112 | |
| 1113 | default: |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 1114 | dev_err(dev, "%s - unknown interrupt code, 0x%02X\n", |
| 1115 | __func__, data[1]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1116 | break; |
| 1117 | } |
| 1118 | |
| 1119 | exit: |
Greg Kroah-Hartman | 52171b4 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1120 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
| 1121 | if (retval) |
| 1122 | dev_err(dev, "%s - resubmit interrupt urb failed, %d\n", |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1123 | __func__, retval); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1124 | } |
| 1125 | |
| 1126 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 1127 | static void ti_bulk_in_callback(struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1128 | { |
Ming Lei | cdc9779 | 2008-02-24 18:41:47 +0800 | [diff] [blame] | 1129 | struct ti_port *tport = urb->context; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1130 | struct usb_serial_port *port = tport->tp_port; |
| 1131 | struct device *dev = &urb->dev->dev; |
Greg Kroah-Hartman | 52171b4 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1132 | int status = urb->status; |
| 1133 | int retval = 0; |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1134 | struct tty_struct *tty; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1135 | |
Greg Kroah-Hartman | 52171b4 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1136 | switch (status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1137 | case 0: |
| 1138 | break; |
| 1139 | case -ECONNRESET: |
| 1140 | case -ENOENT: |
| 1141 | case -ESHUTDOWN: |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 1142 | dev_dbg(dev, "%s - urb shutting down, %d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1143 | tport->tp_tdev->td_urb_error = 1; |
| 1144 | wake_up_interruptible(&tport->tp_write_wait); |
| 1145 | return; |
| 1146 | default: |
Greg Kroah-Hartman | 52171b4 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1147 | dev_err(dev, "%s - nonzero urb status, %d\n", |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 1148 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1149 | tport->tp_tdev->td_urb_error = 1; |
| 1150 | wake_up_interruptible(&tport->tp_write_wait); |
| 1151 | } |
| 1152 | |
Greg Kroah-Hartman | 52171b4 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1153 | if (status == -EPIPE) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1154 | goto exit; |
| 1155 | |
Greg Kroah-Hartman | 52171b4 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1156 | if (status) { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1157 | dev_err(dev, "%s - stopping read!\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1158 | return; |
| 1159 | } |
| 1160 | |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1161 | tty = tty_port_tty_get(&port->port); |
Alan Cox | cf54509 | 2009-04-14 14:58:11 +0100 | [diff] [blame] | 1162 | if (tty) { |
| 1163 | if (urb->actual_length) { |
Greg Kroah-Hartman | 59d33f2 | 2012-09-18 09:58:57 +0100 | [diff] [blame^] | 1164 | usb_serial_debug_data(dev, __func__, urb->actual_length, |
| 1165 | urb->transfer_buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1166 | |
Alan Cox | cf54509 | 2009-04-14 14:58:11 +0100 | [diff] [blame] | 1167 | if (!tport->tp_is_open) |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 1168 | dev_dbg(dev, "%s - port closed, dropping data\n", |
Alan Cox | cf54509 | 2009-04-14 14:58:11 +0100 | [diff] [blame] | 1169 | __func__); |
| 1170 | else |
| 1171 | ti_recv(&urb->dev->dev, tty, |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 1172 | urb->transfer_buffer, |
| 1173 | urb->actual_length); |
Alan Cox | cf54509 | 2009-04-14 14:58:11 +0100 | [diff] [blame] | 1174 | spin_lock(&tport->tp_lock); |
| 1175 | tport->tp_icount.rx += urb->actual_length; |
| 1176 | spin_unlock(&tport->tp_lock); |
| 1177 | } |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1178 | tty_kref_put(tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1179 | } |
| 1180 | |
| 1181 | exit: |
| 1182 | /* continue to read unless stopping */ |
| 1183 | spin_lock(&tport->tp_lock); |
Johan Hovold | 5833041 | 2011-11-06 19:06:28 +0100 | [diff] [blame] | 1184 | if (tport->tp_read_urb_state == TI_READ_URB_RUNNING) |
Greg Kroah-Hartman | 52171b4 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1185 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
Johan Hovold | 5833041 | 2011-11-06 19:06:28 +0100 | [diff] [blame] | 1186 | else if (tport->tp_read_urb_state == TI_READ_URB_STOPPING) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1187 | tport->tp_read_urb_state = TI_READ_URB_STOPPED; |
Johan Hovold | 5833041 | 2011-11-06 19:06:28 +0100 | [diff] [blame] | 1188 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1189 | spin_unlock(&tport->tp_lock); |
Greg Kroah-Hartman | 52171b4 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1190 | if (retval) |
| 1191 | dev_err(dev, "%s - resubmit read urb failed, %d\n", |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1192 | __func__, retval); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1193 | } |
| 1194 | |
| 1195 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 1196 | static void ti_bulk_out_callback(struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1197 | { |
Ming Lei | cdc9779 | 2008-02-24 18:41:47 +0800 | [diff] [blame] | 1198 | struct ti_port *tport = urb->context; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1199 | struct usb_serial_port *port = tport->tp_port; |
Greg Kroah-Hartman | 52171b4 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1200 | int status = urb->status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1201 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1202 | tport->tp_write_urb_in_use = 0; |
| 1203 | |
Greg Kroah-Hartman | 52171b4 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1204 | switch (status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1205 | case 0: |
| 1206 | break; |
| 1207 | case -ECONNRESET: |
| 1208 | case -ENOENT: |
| 1209 | case -ESHUTDOWN: |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 1210 | dev_dbg(&port->dev, "%s - urb shutting down, %d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1211 | tport->tp_tdev->td_urb_error = 1; |
| 1212 | wake_up_interruptible(&tport->tp_write_wait); |
| 1213 | return; |
| 1214 | default: |
Johan Hovold | 22a416c | 2012-02-10 13:20:51 +0100 | [diff] [blame] | 1215 | dev_err_console(port, "%s - nonzero urb status, %d\n", |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1216 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1217 | tport->tp_tdev->td_urb_error = 1; |
| 1218 | wake_up_interruptible(&tport->tp_write_wait); |
| 1219 | } |
| 1220 | |
| 1221 | /* send any buffered data */ |
| 1222 | ti_send(tport); |
| 1223 | } |
| 1224 | |
| 1225 | |
| 1226 | static void ti_recv(struct device *dev, struct tty_struct *tty, |
| 1227 | unsigned char *data, int length) |
| 1228 | { |
| 1229 | int cnt; |
| 1230 | |
| 1231 | do { |
Alan Cox | a108bfc | 2010-02-18 16:44:01 +0000 | [diff] [blame] | 1232 | cnt = tty_insert_flip_string(tty, data, length); |
Alan Cox | 33f0f88 | 2006-01-09 20:54:13 -0800 | [diff] [blame] | 1233 | if (cnt < length) { |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 1234 | dev_err(dev, "%s - dropping data, %d bytes lost\n", |
| 1235 | __func__, length - cnt); |
| 1236 | if (cnt == 0) |
Alan Cox | 33f0f88 | 2006-01-09 20:54:13 -0800 | [diff] [blame] | 1237 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1238 | } |
Alan Cox | 33f0f88 | 2006-01-09 20:54:13 -0800 | [diff] [blame] | 1239 | tty_flip_buffer_push(tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1240 | data += cnt; |
| 1241 | length -= cnt; |
| 1242 | } while (length > 0); |
| 1243 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1244 | } |
| 1245 | |
| 1246 | |
| 1247 | static void ti_send(struct ti_port *tport) |
| 1248 | { |
| 1249 | int count, result; |
| 1250 | struct usb_serial_port *port = tport->tp_port; |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1251 | struct tty_struct *tty = tty_port_tty_get(&port->port); /* FIXME */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1252 | unsigned long flags; |
| 1253 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1254 | spin_lock_irqsave(&tport->tp_lock, flags); |
| 1255 | |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1256 | if (tport->tp_write_urb_in_use) |
| 1257 | goto unlock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1258 | |
Johan Hovold | 074ef65 | 2010-05-19 00:01:35 +0200 | [diff] [blame] | 1259 | count = kfifo_out(&tport->write_fifo, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1260 | port->write_urb->transfer_buffer, |
| 1261 | port->bulk_out_size); |
| 1262 | |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1263 | if (count == 0) |
| 1264 | goto unlock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1265 | |
| 1266 | tport->tp_write_urb_in_use = 1; |
| 1267 | |
| 1268 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
| 1269 | |
Greg Kroah-Hartman | 59d33f2 | 2012-09-18 09:58:57 +0100 | [diff] [blame^] | 1270 | usb_serial_debug_data(&port->dev, __func__, count, |
| 1271 | port->write_urb->transfer_buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1272 | |
| 1273 | usb_fill_bulk_urb(port->write_urb, port->serial->dev, |
| 1274 | usb_sndbulkpipe(port->serial->dev, |
| 1275 | port->bulk_out_endpointAddress), |
| 1276 | port->write_urb->transfer_buffer, count, |
| 1277 | ti_bulk_out_callback, tport); |
| 1278 | |
| 1279 | result = usb_submit_urb(port->write_urb, GFP_ATOMIC); |
| 1280 | if (result) { |
Johan Hovold | 22a416c | 2012-02-10 13:20:51 +0100 | [diff] [blame] | 1281 | dev_err_console(port, "%s - submit write urb failed, %d\n", |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 1282 | __func__, result); |
| 1283 | tport->tp_write_urb_in_use = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1284 | /* TODO: reschedule ti_send */ |
| 1285 | } else { |
| 1286 | spin_lock_irqsave(&tport->tp_lock, flags); |
| 1287 | tport->tp_icount.tx += count; |
| 1288 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
| 1289 | } |
| 1290 | |
| 1291 | /* more room in the buffer for new writes, wakeup */ |
| 1292 | if (tty) |
| 1293 | tty_wakeup(tty); |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1294 | tty_kref_put(tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1295 | wake_up_interruptible(&tport->tp_write_wait); |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1296 | return; |
| 1297 | unlock: |
| 1298 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
| 1299 | tty_kref_put(tty); |
| 1300 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1301 | } |
| 1302 | |
| 1303 | |
| 1304 | static int ti_set_mcr(struct ti_port *tport, unsigned int mcr) |
| 1305 | { |
Alan Cox | 04ca89d | 2008-02-20 21:41:40 +0000 | [diff] [blame] | 1306 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1307 | int status; |
| 1308 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 1309 | status = ti_write_byte(tport->tp_port, tport->tp_tdev, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1310 | tport->tp_uart_base_addr + TI_UART_OFFSET_MCR, |
| 1311 | TI_MCR_RTS | TI_MCR_DTR | TI_MCR_LOOP, mcr); |
| 1312 | |
Alan Cox | 04ca89d | 2008-02-20 21:41:40 +0000 | [diff] [blame] | 1313 | spin_lock_irqsave(&tport->tp_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1314 | if (!status) |
| 1315 | tport->tp_shadow_mcr = mcr; |
Alan Cox | 04ca89d | 2008-02-20 21:41:40 +0000 | [diff] [blame] | 1316 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1317 | |
| 1318 | return status; |
| 1319 | } |
| 1320 | |
| 1321 | |
| 1322 | static int ti_get_lsr(struct ti_port *tport) |
| 1323 | { |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 1324 | int size, status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1325 | struct ti_device *tdev = tport->tp_tdev; |
| 1326 | struct usb_serial_port *port = tport->tp_port; |
| 1327 | int port_number = port->number - port->serial->minor; |
| 1328 | struct ti_port_status *data; |
| 1329 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1330 | size = sizeof(struct ti_port_status); |
| 1331 | data = kmalloc(size, GFP_KERNEL); |
| 1332 | if (!data) { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1333 | dev_err(&port->dev, "%s - out of memory\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1334 | return -ENOMEM; |
| 1335 | } |
| 1336 | |
| 1337 | status = ti_command_in_sync(tdev, TI_GET_PORT_STATUS, |
| 1338 | (__u8)(TI_UART1_PORT+port_number), 0, (__u8 *)data, size); |
| 1339 | if (status) { |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 1340 | dev_err(&port->dev, |
| 1341 | "%s - get port status command failed, %d\n", |
| 1342 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1343 | goto free_data; |
| 1344 | } |
| 1345 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 1346 | dev_dbg(&port->dev, "%s - lsr 0x%02X\n", __func__, data->bLSR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1347 | |
| 1348 | tport->tp_lsr = data->bLSR; |
| 1349 | |
| 1350 | free_data: |
| 1351 | kfree(data); |
| 1352 | return status; |
| 1353 | } |
| 1354 | |
| 1355 | |
| 1356 | static int ti_get_serial_info(struct ti_port *tport, |
| 1357 | struct serial_struct __user *ret_arg) |
| 1358 | { |
| 1359 | struct usb_serial_port *port = tport->tp_port; |
| 1360 | struct serial_struct ret_serial; |
| 1361 | |
| 1362 | if (!ret_arg) |
| 1363 | return -EFAULT; |
| 1364 | |
| 1365 | memset(&ret_serial, 0, sizeof(ret_serial)); |
| 1366 | |
| 1367 | ret_serial.type = PORT_16550A; |
| 1368 | ret_serial.line = port->serial->minor; |
| 1369 | ret_serial.port = port->number - port->serial->minor; |
| 1370 | ret_serial.flags = tport->tp_flags; |
| 1371 | ret_serial.xmit_fifo_size = TI_WRITE_BUF_SIZE; |
| 1372 | ret_serial.baud_base = tport->tp_tdev->td_is_3410 ? 921600 : 460800; |
| 1373 | ret_serial.closing_wait = tport->tp_closing_wait; |
| 1374 | |
| 1375 | if (copy_to_user(ret_arg, &ret_serial, sizeof(*ret_arg))) |
| 1376 | return -EFAULT; |
| 1377 | |
| 1378 | return 0; |
| 1379 | } |
| 1380 | |
| 1381 | |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1382 | static int ti_set_serial_info(struct tty_struct *tty, struct ti_port *tport, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1383 | struct serial_struct __user *new_arg) |
| 1384 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1385 | struct serial_struct new_serial; |
| 1386 | |
| 1387 | if (copy_from_user(&new_serial, new_arg, sizeof(new_serial))) |
| 1388 | return -EFAULT; |
| 1389 | |
| 1390 | tport->tp_flags = new_serial.flags & TI_SET_SERIAL_FLAGS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1391 | tport->tp_closing_wait = new_serial.closing_wait; |
| 1392 | |
| 1393 | return 0; |
| 1394 | } |
| 1395 | |
| 1396 | |
| 1397 | static void ti_handle_new_msr(struct ti_port *tport, __u8 msr) |
| 1398 | { |
| 1399 | struct async_icount *icount; |
| 1400 | struct tty_struct *tty; |
| 1401 | unsigned long flags; |
| 1402 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 1403 | dev_dbg(&tport->tp_port->dev, "%s - msr 0x%02X\n", __func__, msr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1404 | |
| 1405 | if (msr & TI_MSR_DELTA_MASK) { |
| 1406 | spin_lock_irqsave(&tport->tp_lock, flags); |
| 1407 | icount = &tport->tp_icount; |
| 1408 | if (msr & TI_MSR_DELTA_CTS) |
| 1409 | icount->cts++; |
| 1410 | if (msr & TI_MSR_DELTA_DSR) |
| 1411 | icount->dsr++; |
| 1412 | if (msr & TI_MSR_DELTA_CD) |
| 1413 | icount->dcd++; |
| 1414 | if (msr & TI_MSR_DELTA_RI) |
| 1415 | icount->rng++; |
| 1416 | wake_up_interruptible(&tport->tp_msr_wait); |
| 1417 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
| 1418 | } |
| 1419 | |
| 1420 | tport->tp_msr = msr & TI_MSR_MASK; |
| 1421 | |
| 1422 | /* handle CTS flow control */ |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1423 | tty = tty_port_tty_get(&tport->tp_port->port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1424 | if (tty && C_CRTSCTS(tty)) { |
| 1425 | if (msr & TI_MSR_CTS) { |
| 1426 | tty->hw_stopped = 0; |
| 1427 | tty_wakeup(tty); |
| 1428 | } else { |
| 1429 | tty->hw_stopped = 1; |
| 1430 | } |
| 1431 | } |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1432 | tty_kref_put(tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1433 | } |
| 1434 | |
| 1435 | |
| 1436 | static void ti_drain(struct ti_port *tport, unsigned long timeout, int flush) |
| 1437 | { |
| 1438 | struct ti_device *tdev = tport->tp_tdev; |
| 1439 | struct usb_serial_port *port = tport->tp_port; |
| 1440 | wait_queue_t wait; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1441 | |
Oliver Neukum | 0915f49 | 2008-01-23 12:28:45 +0100 | [diff] [blame] | 1442 | spin_lock_irq(&tport->tp_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1443 | |
| 1444 | /* wait for data to drain from the buffer */ |
| 1445 | tdev->td_urb_error = 0; |
| 1446 | init_waitqueue_entry(&wait, current); |
| 1447 | add_wait_queue(&tport->tp_write_wait, &wait); |
| 1448 | for (;;) { |
| 1449 | set_current_state(TASK_INTERRUPTIBLE); |
Johan Hovold | 074ef65 | 2010-05-19 00:01:35 +0200 | [diff] [blame] | 1450 | if (kfifo_len(&tport->write_fifo) == 0 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1451 | || timeout == 0 || signal_pending(current) |
| 1452 | || tdev->td_urb_error |
Oliver Neukum | 0915f49 | 2008-01-23 12:28:45 +0100 | [diff] [blame] | 1453 | || port->serial->disconnected) /* disconnect */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1454 | break; |
Oliver Neukum | 0915f49 | 2008-01-23 12:28:45 +0100 | [diff] [blame] | 1455 | spin_unlock_irq(&tport->tp_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1456 | timeout = schedule_timeout(timeout); |
Oliver Neukum | 0915f49 | 2008-01-23 12:28:45 +0100 | [diff] [blame] | 1457 | spin_lock_irq(&tport->tp_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1458 | } |
| 1459 | set_current_state(TASK_RUNNING); |
| 1460 | remove_wait_queue(&tport->tp_write_wait, &wait); |
| 1461 | |
| 1462 | /* flush any remaining data in the buffer */ |
| 1463 | if (flush) |
Johan Hovold | 074ef65 | 2010-05-19 00:01:35 +0200 | [diff] [blame] | 1464 | kfifo_reset_out(&tport->write_fifo); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1465 | |
Oliver Neukum | 0915f49 | 2008-01-23 12:28:45 +0100 | [diff] [blame] | 1466 | spin_unlock_irq(&tport->tp_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1467 | |
Oliver Neukum | 0915f49 | 2008-01-23 12:28:45 +0100 | [diff] [blame] | 1468 | mutex_lock(&port->serial->disc_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1469 | /* wait for data to drain from the device */ |
| 1470 | /* wait for empty tx register, plus 20 ms */ |
| 1471 | timeout += jiffies; |
| 1472 | tport->tp_lsr &= ~TI_LSR_TX_EMPTY; |
| 1473 | while ((long)(jiffies - timeout) < 0 && !signal_pending(current) |
| 1474 | && !(tport->tp_lsr&TI_LSR_TX_EMPTY) && !tdev->td_urb_error |
Oliver Neukum | 0915f49 | 2008-01-23 12:28:45 +0100 | [diff] [blame] | 1475 | && !port->serial->disconnected) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1476 | if (ti_get_lsr(tport)) |
| 1477 | break; |
Oliver Neukum | 0915f49 | 2008-01-23 12:28:45 +0100 | [diff] [blame] | 1478 | mutex_unlock(&port->serial->disc_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1479 | msleep_interruptible(20); |
Oliver Neukum | 0915f49 | 2008-01-23 12:28:45 +0100 | [diff] [blame] | 1480 | mutex_lock(&port->serial->disc_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1481 | } |
Oliver Neukum | 0915f49 | 2008-01-23 12:28:45 +0100 | [diff] [blame] | 1482 | mutex_unlock(&port->serial->disc_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1483 | } |
| 1484 | |
| 1485 | |
| 1486 | static void ti_stop_read(struct ti_port *tport, struct tty_struct *tty) |
| 1487 | { |
| 1488 | unsigned long flags; |
| 1489 | |
| 1490 | spin_lock_irqsave(&tport->tp_lock, flags); |
| 1491 | |
| 1492 | if (tport->tp_read_urb_state == TI_READ_URB_RUNNING) |
| 1493 | tport->tp_read_urb_state = TI_READ_URB_STOPPING; |
| 1494 | |
| 1495 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
| 1496 | } |
| 1497 | |
| 1498 | |
| 1499 | static int ti_restart_read(struct ti_port *tport, struct tty_struct *tty) |
| 1500 | { |
| 1501 | struct urb *urb; |
| 1502 | int status = 0; |
| 1503 | unsigned long flags; |
| 1504 | |
| 1505 | spin_lock_irqsave(&tport->tp_lock, flags); |
| 1506 | |
| 1507 | if (tport->tp_read_urb_state == TI_READ_URB_STOPPED) { |
Oliver Neukum | 944dc18 | 2007-05-07 08:33:18 +0200 | [diff] [blame] | 1508 | tport->tp_read_urb_state = TI_READ_URB_RUNNING; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1509 | urb = tport->tp_port->read_urb; |
Oliver Neukum | 944dc18 | 2007-05-07 08:33:18 +0200 | [diff] [blame] | 1510 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1511 | urb->context = tport; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1512 | status = usb_submit_urb(urb, GFP_KERNEL); |
Oliver Neukum | 944dc18 | 2007-05-07 08:33:18 +0200 | [diff] [blame] | 1513 | } else { |
| 1514 | tport->tp_read_urb_state = TI_READ_URB_RUNNING; |
| 1515 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1516 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1517 | |
| 1518 | return status; |
| 1519 | } |
| 1520 | |
| 1521 | |
| 1522 | static int ti_command_out_sync(struct ti_device *tdev, __u8 command, |
| 1523 | __u16 moduleid, __u16 value, __u8 *data, int size) |
| 1524 | { |
| 1525 | int status; |
| 1526 | |
| 1527 | status = usb_control_msg(tdev->td_serial->dev, |
| 1528 | usb_sndctrlpipe(tdev->td_serial->dev, 0), command, |
| 1529 | (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT), |
| 1530 | value, moduleid, data, size, 1000); |
| 1531 | |
| 1532 | if (status == size) |
| 1533 | status = 0; |
| 1534 | |
| 1535 | if (status > 0) |
| 1536 | status = -ECOMM; |
| 1537 | |
| 1538 | return status; |
| 1539 | } |
| 1540 | |
| 1541 | |
| 1542 | static int ti_command_in_sync(struct ti_device *tdev, __u8 command, |
| 1543 | __u16 moduleid, __u16 value, __u8 *data, int size) |
| 1544 | { |
| 1545 | int status; |
| 1546 | |
| 1547 | status = usb_control_msg(tdev->td_serial->dev, |
| 1548 | usb_rcvctrlpipe(tdev->td_serial->dev, 0), command, |
| 1549 | (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN), |
| 1550 | value, moduleid, data, size, 1000); |
| 1551 | |
| 1552 | if (status == size) |
| 1553 | status = 0; |
| 1554 | |
| 1555 | if (status > 0) |
| 1556 | status = -ECOMM; |
| 1557 | |
| 1558 | return status; |
| 1559 | } |
| 1560 | |
| 1561 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 1562 | static int ti_write_byte(struct usb_serial_port *port, |
| 1563 | struct ti_device *tdev, unsigned long addr, |
| 1564 | __u8 mask, __u8 byte) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1565 | { |
| 1566 | int status; |
| 1567 | unsigned int size; |
| 1568 | struct ti_write_data_bytes *data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1569 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 1570 | dev_dbg(&port->dev, "%s - addr 0x%08lX, mask 0x%02X, byte 0x%02X\n", __func__, |
| 1571 | addr, mask, byte); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1572 | |
| 1573 | size = sizeof(struct ti_write_data_bytes) + 2; |
| 1574 | data = kmalloc(size, GFP_KERNEL); |
| 1575 | if (!data) { |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 1576 | dev_err(&port->dev, "%s - out of memory\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1577 | return -ENOMEM; |
| 1578 | } |
| 1579 | |
| 1580 | data->bAddrType = TI_RW_DATA_ADDR_XDATA; |
| 1581 | data->bDataType = TI_RW_DATA_BYTE; |
| 1582 | data->bDataCounter = 1; |
| 1583 | data->wBaseAddrHi = cpu_to_be16(addr>>16); |
| 1584 | data->wBaseAddrLo = cpu_to_be16(addr); |
| 1585 | data->bData[0] = mask; |
| 1586 | data->bData[1] = byte; |
| 1587 | |
| 1588 | status = ti_command_out_sync(tdev, TI_WRITE_DATA, TI_RAM_PORT, 0, |
| 1589 | (__u8 *)data, size); |
| 1590 | |
| 1591 | if (status < 0) |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 1592 | dev_err(&port->dev, "%s - failed, %d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1593 | |
| 1594 | kfree(data); |
| 1595 | |
| 1596 | return status; |
| 1597 | } |
| 1598 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1599 | static int ti_do_download(struct usb_device *dev, int pipe, |
| 1600 | u8 *buffer, int size) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1601 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1602 | int pos; |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1603 | u8 cs = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1604 | int done; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1605 | struct ti_firmware_header *header; |
Oliver Neukum | 87ea8c8 | 2009-06-30 09:44:24 +0200 | [diff] [blame] | 1606 | int status = 0; |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1607 | int len; |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 1608 | |
| 1609 | for (pos = sizeof(struct ti_firmware_header); pos < size; pos++) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1610 | cs = (__u8)(cs + buffer[pos]); |
| 1611 | |
| 1612 | header = (struct ti_firmware_header *)buffer; |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 1613 | header->wLength = cpu_to_le16((__u16)(size |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1614 | - sizeof(struct ti_firmware_header))); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1615 | header->bCheckSum = cs; |
| 1616 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 1617 | dev_dbg(&dev->dev, "%s - downloading firmware\n", __func__); |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1618 | for (pos = 0; pos < size; pos += done) { |
| 1619 | len = min(size - pos, TI_DOWNLOAD_MAX_PACKET_SIZE); |
| 1620 | status = usb_bulk_msg(dev, pipe, buffer + pos, len, |
| 1621 | &done, 1000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1622 | if (status) |
| 1623 | break; |
| 1624 | } |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1625 | return status; |
| 1626 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1627 | |
Chris Adams | 05a3d90 | 2009-01-11 19:48:53 +0000 | [diff] [blame] | 1628 | static int ti_download_firmware(struct ti_device *tdev) |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1629 | { |
Chris Adams | 05a3d90 | 2009-01-11 19:48:53 +0000 | [diff] [blame] | 1630 | int status; |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1631 | int buffer_size; |
| 1632 | __u8 *buffer; |
| 1633 | struct usb_device *dev = tdev->td_serial->dev; |
| 1634 | unsigned int pipe = usb_sndbulkpipe(dev, |
| 1635 | tdev->td_serial->port[0]->bulk_out_endpointAddress); |
| 1636 | const struct firmware *fw_p; |
| 1637 | char buf[32]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1638 | |
Chris Adams | 05a3d90 | 2009-01-11 19:48:53 +0000 | [diff] [blame] | 1639 | /* try ID specific firmware first, then try generic firmware */ |
| 1640 | sprintf(buf, "ti_usb-v%04x-p%04x.fw", dev->descriptor.idVendor, |
| 1641 | dev->descriptor.idProduct); |
Adhir Ramjiawan | 72b27a0 | 2012-04-09 14:01:38 +0200 | [diff] [blame] | 1642 | status = request_firmware(&fw_p, buf, &dev->dev); |
| 1643 | |
| 1644 | if (status != 0) { |
Chris Adams | cb7a7c6 | 2009-01-11 19:49:00 +0000 | [diff] [blame] | 1645 | buf[0] = '\0'; |
| 1646 | if (dev->descriptor.idVendor == MTS_VENDOR_ID) { |
| 1647 | switch (dev->descriptor.idProduct) { |
| 1648 | case MTS_CDMA_PRODUCT_ID: |
| 1649 | strcpy(buf, "mts_cdma.fw"); |
| 1650 | break; |
| 1651 | case MTS_GSM_PRODUCT_ID: |
| 1652 | strcpy(buf, "mts_gsm.fw"); |
| 1653 | break; |
| 1654 | case MTS_EDGE_PRODUCT_ID: |
| 1655 | strcpy(buf, "mts_edge.fw"); |
| 1656 | break; |
Alex Manoussakis | cdc0483 | 2010-04-22 15:18:20 -0700 | [diff] [blame] | 1657 | case MTS_MT9234MU_PRODUCT_ID: |
| 1658 | strcpy(buf, "mts_mt9234mu.fw"); |
| 1659 | break; |
| 1660 | case MTS_MT9234ZBA_PRODUCT_ID: |
| 1661 | strcpy(buf, "mts_mt9234zba.fw"); |
| 1662 | break; |
| 1663 | case MTS_MT9234ZBAOLD_PRODUCT_ID: |
| 1664 | strcpy(buf, "mts_mt9234zba.fw"); |
| 1665 | break; } |
Chris Adams | cb7a7c6 | 2009-01-11 19:49:00 +0000 | [diff] [blame] | 1666 | } |
| 1667 | if (buf[0] == '\0') { |
| 1668 | if (tdev->td_is_3410) |
| 1669 | strcpy(buf, "ti_3410.fw"); |
| 1670 | else |
| 1671 | strcpy(buf, "ti_5052.fw"); |
| 1672 | } |
Chris Adams | 05a3d90 | 2009-01-11 19:48:53 +0000 | [diff] [blame] | 1673 | status = request_firmware(&fw_p, buf, &dev->dev); |
| 1674 | } |
| 1675 | if (status) { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1676 | dev_err(&dev->dev, "%s - firmware not found\n", __func__); |
| 1677 | return -ENOENT; |
| 1678 | } |
| 1679 | if (fw_p->size > TI_FIRMWARE_BUF_SIZE) { |
Randy Dunlap | 75181f3 | 2010-04-15 11:38:56 -0700 | [diff] [blame] | 1680 | dev_err(&dev->dev, "%s - firmware too large %zu\n", __func__, fw_p->size); |
Jesper Juhl | 357f45d | 2011-06-13 22:50:41 +0200 | [diff] [blame] | 1681 | release_firmware(fw_p); |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1682 | return -ENOENT; |
| 1683 | } |
| 1684 | |
| 1685 | buffer_size = TI_FIRMWARE_BUF_SIZE + sizeof(struct ti_firmware_header); |
| 1686 | buffer = kmalloc(buffer_size, GFP_KERNEL); |
| 1687 | if (buffer) { |
| 1688 | memcpy(buffer, fw_p->data, fw_p->size); |
| 1689 | memset(buffer + fw_p->size, 0xff, buffer_size - fw_p->size); |
Chris Adams | 2bcbe4c1 | 2008-09-10 14:11:38 -0700 | [diff] [blame] | 1690 | status = ti_do_download(dev, pipe, buffer, fw_p->size); |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1691 | kfree(buffer); |
Chris Adams | 05a3d90 | 2009-01-11 19:48:53 +0000 | [diff] [blame] | 1692 | } else { |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 1693 | dev_dbg(&dev->dev, "%s ENOMEM\n", __func__); |
Chris Adams | 05a3d90 | 2009-01-11 19:48:53 +0000 | [diff] [blame] | 1694 | status = -ENOMEM; |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1695 | } |
| 1696 | release_firmware(fw_p); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1697 | if (status) { |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 1698 | dev_err(&dev->dev, "%s - error downloading firmware, %d\n", |
| 1699 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1700 | return status; |
| 1701 | } |
| 1702 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 1703 | dev_dbg(&dev->dev, "%s - download successful\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1704 | |
| 1705 | return 0; |
| 1706 | } |