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/slab.h> |
| 25 | #include <linux/tty.h> |
| 26 | #include <linux/tty_driver.h> |
| 27 | #include <linux/tty_flip.h> |
| 28 | #include <linux/module.h> |
| 29 | #include <linux/spinlock.h> |
| 30 | #include <linux/ioctl.h> |
| 31 | #include <linux/serial.h> |
Johan Hovold | 074ef65 | 2010-05-19 00:01:35 +0200 | [diff] [blame] | 32 | #include <linux/kfifo.h> |
Matthias Kaehlcke | 9da0068 | 2007-11-21 15:13:16 -0800 | [diff] [blame] | 33 | #include <linux/mutex.h> |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 34 | #include <linux/uaccess.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | #include <linux/usb.h> |
Greg Kroah-Hartman | a969888 | 2006-07-11 21:22:58 -0700 | [diff] [blame] | 36 | #include <linux/usb/serial.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 37 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | #include "ti_usb_3410_5052.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 39 | |
| 40 | /* Defines */ |
| 41 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 42 | #define TI_DRIVER_AUTHOR "Al Borchers <alborchers@steinerpoint.com>" |
| 43 | #define TI_DRIVER_DESC "TI USB 3410/5052 Serial Driver" |
| 44 | |
| 45 | #define TI_FIRMWARE_BUF_SIZE 16284 |
| 46 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 47 | #define TI_TRANSFER_TIMEOUT 2 |
| 48 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 49 | #define TI_DEFAULT_CLOSING_WAIT 4000 /* in .01 secs */ |
| 50 | |
| 51 | /* supported setserial flags */ |
Oliver Neukum | 2400a2b | 2009-04-20 17:28:53 +0200 | [diff] [blame] | 52 | #define TI_SET_SERIAL_FLAGS 0 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | |
| 54 | /* read urb states */ |
| 55 | #define TI_READ_URB_RUNNING 0 |
| 56 | #define TI_READ_URB_STOPPING 1 |
| 57 | #define TI_READ_URB_STOPPED 2 |
| 58 | |
| 59 | #define TI_EXTRA_VID_PID_COUNT 5 |
| 60 | |
| 61 | |
| 62 | /* Structures */ |
| 63 | |
| 64 | struct ti_port { |
| 65 | int tp_is_open; |
| 66 | __u8 tp_msr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 67 | __u8 tp_shadow_mcr; |
| 68 | __u8 tp_uart_mode; /* 232 or 485 modes */ |
| 69 | unsigned int tp_uart_base_addr; |
| 70 | int tp_flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 71 | struct ti_device *tp_tdev; |
| 72 | struct usb_serial_port *tp_port; |
| 73 | spinlock_t tp_lock; |
| 74 | int tp_read_urb_state; |
| 75 | int tp_write_urb_in_use; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 76 | }; |
| 77 | |
| 78 | struct ti_device { |
Matthias Kaehlcke | 9da0068 | 2007-11-21 15:13:16 -0800 | [diff] [blame] | 79 | struct mutex td_open_close_lock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 80 | int td_open_port_count; |
| 81 | struct usb_serial *td_serial; |
| 82 | int td_is_3410; |
| 83 | int td_urb_error; |
| 84 | }; |
| 85 | |
| 86 | |
| 87 | /* Function Declarations */ |
| 88 | |
| 89 | static int ti_startup(struct usb_serial *serial); |
Alan Stern | f9c99bb | 2009-06-02 11:53:55 -0400 | [diff] [blame] | 90 | static void ti_release(struct usb_serial *serial); |
Johan Hovold | 51ef847 | 2012-10-17 16:31:35 +0200 | [diff] [blame] | 91 | static int ti_port_probe(struct usb_serial_port *port); |
| 92 | static int ti_port_remove(struct usb_serial_port *port); |
Alan Cox | a509a7e | 2009-09-19 13:13:26 -0700 | [diff] [blame] | 93 | 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] | 94 | static void ti_close(struct usb_serial_port *port); |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 95 | 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] | 96 | const unsigned char *data, int count); |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 97 | static int ti_write_room(struct tty_struct *tty); |
| 98 | static int ti_chars_in_buffer(struct tty_struct *tty); |
Johan Hovold | ff93b19 | 2013-05-05 20:32:32 +0200 | [diff] [blame] | 99 | static bool ti_tx_empty(struct usb_serial_port *port); |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 100 | static void ti_throttle(struct tty_struct *tty); |
| 101 | static void ti_unthrottle(struct tty_struct *tty); |
Alan Cox | 00a0d0d | 2011-02-14 16:27:06 +0000 | [diff] [blame] | 102 | static int ti_ioctl(struct tty_struct *tty, |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 103 | unsigned int cmd, unsigned long arg); |
| 104 | static void ti_set_termios(struct tty_struct *tty, |
| 105 | struct usb_serial_port *port, struct ktermios *old_termios); |
Alan Cox | 60b33c1 | 2011-02-14 16:26:14 +0000 | [diff] [blame] | 106 | static int ti_tiocmget(struct tty_struct *tty); |
Alan Cox | 20b9d17 | 2011-02-14 16:26:50 +0000 | [diff] [blame] | 107 | static int ti_tiocmset(struct tty_struct *tty, |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 108 | unsigned int set, unsigned int clear); |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 109 | static void ti_break(struct tty_struct *tty, int break_state); |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 110 | static void ti_interrupt_callback(struct urb *urb); |
| 111 | static void ti_bulk_in_callback(struct urb *urb); |
| 112 | static void ti_bulk_out_callback(struct urb *urb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 113 | |
Jiri Slaby | 2e124b4 | 2013-01-03 15:53:06 +0100 | [diff] [blame] | 114 | static void ti_recv(struct usb_serial_port *port, unsigned char *data, |
| 115 | int length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 116 | static void ti_send(struct ti_port *tport); |
| 117 | static int ti_set_mcr(struct ti_port *tport, unsigned int mcr); |
Johan Hovold | b5784f7 | 2013-04-18 17:33:20 +0200 | [diff] [blame] | 118 | static int ti_get_lsr(struct ti_port *tport, u8 *lsr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | static int ti_get_serial_info(struct ti_port *tport, |
| 120 | struct serial_struct __user *ret_arg); |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 121 | 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] | 122 | struct serial_struct __user *new_arg); |
| 123 | static void ti_handle_new_msr(struct ti_port *tport, __u8 msr); |
| 124 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 125 | static void ti_stop_read(struct ti_port *tport, struct tty_struct *tty); |
| 126 | static int ti_restart_read(struct ti_port *tport, struct tty_struct *tty); |
| 127 | |
| 128 | static int ti_command_out_sync(struct ti_device *tdev, __u8 command, |
| 129 | __u16 moduleid, __u16 value, __u8 *data, int size); |
| 130 | static int ti_command_in_sync(struct ti_device *tdev, __u8 command, |
| 131 | __u16 moduleid, __u16 value, __u8 *data, int size); |
| 132 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 133 | static int ti_write_byte(struct usb_serial_port *port, struct ti_device *tdev, |
| 134 | unsigned long addr, __u8 mask, __u8 byte); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 135 | |
Chris Adams | 05a3d90 | 2009-01-11 19:48:53 +0000 | [diff] [blame] | 136 | static int ti_download_firmware(struct ti_device *tdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 137 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 138 | |
| 139 | /* Data */ |
| 140 | |
| 141 | /* module parameters */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 142 | static int closing_wait = TI_DEFAULT_CLOSING_WAIT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 143 | |
| 144 | /* supported devices */ |
Johan Hovold | 5c6b98d | 2013-12-29 19:22:54 +0100 | [diff] [blame] | 145 | static const struct usb_device_id ti_id_table_3410[] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 146 | { USB_DEVICE(TI_VENDOR_ID, TI_3410_PRODUCT_ID) }, |
Oleg Verych | 1f54a6a | 2006-11-17 08:21:27 +0000 | [diff] [blame] | 147 | { USB_DEVICE(TI_VENDOR_ID, TI_3410_EZ430_ID) }, |
Chris Adams | cb7a7c6 | 2009-01-11 19:49:00 +0000 | [diff] [blame] | 148 | { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_NO_FW_PRODUCT_ID) }, |
| 149 | { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_NO_FW_PRODUCT_ID) }, |
| 150 | { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_PRODUCT_ID) }, |
| 151 | { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_PRODUCT_ID) }, |
| 152 | { USB_DEVICE(MTS_VENDOR_ID, MTS_EDGE_PRODUCT_ID) }, |
Alex Manoussakis | cdc0483 | 2010-04-22 15:18:20 -0700 | [diff] [blame] | 153 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234MU_PRODUCT_ID) }, |
| 154 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBA_PRODUCT_ID) }, |
| 155 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBAOLD_PRODUCT_ID) }, |
Oliver Neukum | 1a1fab51 | 2009-01-12 13:31:16 +0100 | [diff] [blame] | 156 | { USB_DEVICE(IBM_VENDOR_ID, IBM_4543_PRODUCT_ID) }, |
Oliver Neukum | 97dcf04 | 2009-02-04 16:38:33 +0100 | [diff] [blame] | 157 | { USB_DEVICE(IBM_VENDOR_ID, IBM_454B_PRODUCT_ID) }, |
| 158 | { USB_DEVICE(IBM_VENDOR_ID, IBM_454C_PRODUCT_ID) }, |
Anders Hammarquist | 35a2fbc | 2013-06-19 01:45:48 +0200 | [diff] [blame] | 159 | { USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_STEREO_PLUG_ID) }, |
| 160 | { USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_STRIP_PORT_ID) }, |
Darren Hart | 975dc33 | 2012-05-11 13:56:57 -0700 | [diff] [blame] | 161 | { USB_DEVICE(TI_VENDOR_ID, FRI2_PRODUCT_ID) }, |
David Woodhouse | 1bcb49e | 2015-11-14 16:49:30 +0000 | [diff] [blame] | 162 | { USB_DEVICE(HONEYWELL_VENDOR_ID, HONEYWELL_HGI80_PRODUCT_ID) }, |
Johan Hovold | d7ece65 | 2013-06-26 16:47:43 +0200 | [diff] [blame] | 163 | { } /* terminator */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 164 | }; |
| 165 | |
Johan Hovold | 5c6b98d | 2013-12-29 19:22:54 +0100 | [diff] [blame] | 166 | static const struct usb_device_id ti_id_table_5052[] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 167 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_BOOT_PRODUCT_ID) }, |
| 168 | { USB_DEVICE(TI_VENDOR_ID, TI_5152_BOOT_PRODUCT_ID) }, |
| 169 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_EEPROM_PRODUCT_ID) }, |
| 170 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_FIRMWARE_PRODUCT_ID) }, |
Johan Hovold | d7ece65 | 2013-06-26 16:47:43 +0200 | [diff] [blame] | 171 | { } /* terminator */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 172 | }; |
| 173 | |
Johan Hovold | 5c6b98d | 2013-12-29 19:22:54 +0100 | [diff] [blame] | 174 | static const struct usb_device_id ti_id_table_combined[] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 175 | { USB_DEVICE(TI_VENDOR_ID, TI_3410_PRODUCT_ID) }, |
Oleg Verych | 1f54a6a | 2006-11-17 08:21:27 +0000 | [diff] [blame] | 176 | { USB_DEVICE(TI_VENDOR_ID, TI_3410_EZ430_ID) }, |
Chris Adams | cb7a7c6 | 2009-01-11 19:49:00 +0000 | [diff] [blame] | 177 | { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_NO_FW_PRODUCT_ID) }, |
| 178 | { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_NO_FW_PRODUCT_ID) }, |
| 179 | { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_PRODUCT_ID) }, |
| 180 | { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_PRODUCT_ID) }, |
| 181 | { USB_DEVICE(MTS_VENDOR_ID, MTS_EDGE_PRODUCT_ID) }, |
Alex Manoussakis | cdc0483 | 2010-04-22 15:18:20 -0700 | [diff] [blame] | 182 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234MU_PRODUCT_ID) }, |
| 183 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBA_PRODUCT_ID) }, |
| 184 | { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBAOLD_PRODUCT_ID) }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 185 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_BOOT_PRODUCT_ID) }, |
| 186 | { USB_DEVICE(TI_VENDOR_ID, TI_5152_BOOT_PRODUCT_ID) }, |
| 187 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_EEPROM_PRODUCT_ID) }, |
| 188 | { USB_DEVICE(TI_VENDOR_ID, TI_5052_FIRMWARE_PRODUCT_ID) }, |
Oliver Neukum | 1a1fab51 | 2009-01-12 13:31:16 +0100 | [diff] [blame] | 189 | { USB_DEVICE(IBM_VENDOR_ID, IBM_4543_PRODUCT_ID) }, |
Oliver Neukum | 97dcf04 | 2009-02-04 16:38:33 +0100 | [diff] [blame] | 190 | { USB_DEVICE(IBM_VENDOR_ID, IBM_454B_PRODUCT_ID) }, |
| 191 | { USB_DEVICE(IBM_VENDOR_ID, IBM_454C_PRODUCT_ID) }, |
Andrew Lunn | 7fd2570 | 2012-02-20 09:31:57 +0100 | [diff] [blame] | 192 | { USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_PRODUCT_ID) }, |
Diego Elio Pettenò | c9d09dc | 2013-10-08 20:03:37 +0100 | [diff] [blame] | 193 | { USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_STRIP_PORT_ID) }, |
Darren Hart | 975dc33 | 2012-05-11 13:56:57 -0700 | [diff] [blame] | 194 | { USB_DEVICE(TI_VENDOR_ID, FRI2_PRODUCT_ID) }, |
David Woodhouse | 1bcb49e | 2015-11-14 16:49:30 +0000 | [diff] [blame] | 195 | { USB_DEVICE(HONEYWELL_VENDOR_ID, HONEYWELL_HGI80_PRODUCT_ID) }, |
Johan Hovold | d7ece65 | 2013-06-26 16:47:43 +0200 | [diff] [blame] | 196 | { } /* terminator */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 197 | }; |
| 198 | |
Greg Kroah-Hartman | ea65370 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 199 | static struct usb_serial_driver ti_1port_device = { |
Greg Kroah-Hartman | 18fcac3 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 200 | .driver = { |
Greg Kroah-Hartman | 269bda1 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 201 | .owner = THIS_MODULE, |
| 202 | .name = "ti_usb_3410_5052_1", |
Greg Kroah-Hartman | 18fcac3 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 203 | }, |
Greg Kroah-Hartman | 269bda1 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 204 | .description = "TI USB 3410 1 port adapter", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 205 | .id_table = ti_id_table_3410, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 206 | .num_ports = 1, |
| 207 | .attach = ti_startup, |
Alan Stern | f9c99bb | 2009-06-02 11:53:55 -0400 | [diff] [blame] | 208 | .release = ti_release, |
Johan Hovold | 51ef847 | 2012-10-17 16:31:35 +0200 | [diff] [blame] | 209 | .port_probe = ti_port_probe, |
| 210 | .port_remove = ti_port_remove, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 211 | .open = ti_open, |
| 212 | .close = ti_close, |
| 213 | .write = ti_write, |
| 214 | .write_room = ti_write_room, |
| 215 | .chars_in_buffer = ti_chars_in_buffer, |
Johan Hovold | ff93b19 | 2013-05-05 20:32:32 +0200 | [diff] [blame] | 216 | .tx_empty = ti_tx_empty, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 217 | .throttle = ti_throttle, |
| 218 | .unthrottle = ti_unthrottle, |
| 219 | .ioctl = ti_ioctl, |
| 220 | .set_termios = ti_set_termios, |
| 221 | .tiocmget = ti_tiocmget, |
| 222 | .tiocmset = ti_tiocmset, |
Johan Hovold | 6c75e26 | 2013-03-21 12:37:34 +0100 | [diff] [blame] | 223 | .tiocmiwait = usb_serial_generic_tiocmiwait, |
Johan Hovold | 783ca35 | 2013-03-21 12:37:33 +0100 | [diff] [blame] | 224 | .get_icount = usb_serial_generic_get_icount, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 225 | .break_ctl = ti_break, |
| 226 | .read_int_callback = ti_interrupt_callback, |
| 227 | .read_bulk_callback = ti_bulk_in_callback, |
| 228 | .write_bulk_callback = ti_bulk_out_callback, |
| 229 | }; |
| 230 | |
Greg Kroah-Hartman | ea65370 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 231 | static struct usb_serial_driver ti_2port_device = { |
Greg Kroah-Hartman | 18fcac3 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 232 | .driver = { |
Greg Kroah-Hartman | 269bda1 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 233 | .owner = THIS_MODULE, |
| 234 | .name = "ti_usb_3410_5052_2", |
Greg Kroah-Hartman | 18fcac3 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 235 | }, |
Greg Kroah-Hartman | 269bda1 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 236 | .description = "TI USB 5052 2 port adapter", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 237 | .id_table = ti_id_table_5052, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 238 | .num_ports = 2, |
| 239 | .attach = ti_startup, |
Alan Stern | f9c99bb | 2009-06-02 11:53:55 -0400 | [diff] [blame] | 240 | .release = ti_release, |
Johan Hovold | 51ef847 | 2012-10-17 16:31:35 +0200 | [diff] [blame] | 241 | .port_probe = ti_port_probe, |
| 242 | .port_remove = ti_port_remove, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 243 | .open = ti_open, |
| 244 | .close = ti_close, |
| 245 | .write = ti_write, |
| 246 | .write_room = ti_write_room, |
| 247 | .chars_in_buffer = ti_chars_in_buffer, |
Johan Hovold | ff93b19 | 2013-05-05 20:32:32 +0200 | [diff] [blame] | 248 | .tx_empty = ti_tx_empty, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 249 | .throttle = ti_throttle, |
| 250 | .unthrottle = ti_unthrottle, |
| 251 | .ioctl = ti_ioctl, |
| 252 | .set_termios = ti_set_termios, |
| 253 | .tiocmget = ti_tiocmget, |
| 254 | .tiocmset = ti_tiocmset, |
Johan Hovold | 6c75e26 | 2013-03-21 12:37:34 +0100 | [diff] [blame] | 255 | .tiocmiwait = usb_serial_generic_tiocmiwait, |
Johan Hovold | 783ca35 | 2013-03-21 12:37:33 +0100 | [diff] [blame] | 256 | .get_icount = usb_serial_generic_get_icount, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 257 | .break_ctl = ti_break, |
| 258 | .read_int_callback = ti_interrupt_callback, |
| 259 | .read_bulk_callback = ti_bulk_in_callback, |
| 260 | .write_bulk_callback = ti_bulk_out_callback, |
| 261 | }; |
| 262 | |
Alan Stern | 29618e9 | 2012-02-23 14:57:32 -0500 | [diff] [blame] | 263 | static struct usb_serial_driver * const serial_drivers[] = { |
| 264 | &ti_1port_device, &ti_2port_device, NULL |
| 265 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 266 | |
| 267 | /* Module */ |
| 268 | |
| 269 | MODULE_AUTHOR(TI_DRIVER_AUTHOR); |
| 270 | MODULE_DESCRIPTION(TI_DRIVER_DESC); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 271 | MODULE_LICENSE("GPL"); |
| 272 | |
David Woodhouse | 5f24e2d | 2008-05-30 18:49:51 +0300 | [diff] [blame] | 273 | MODULE_FIRMWARE("ti_3410.fw"); |
| 274 | MODULE_FIRMWARE("ti_5052.fw"); |
Chris Adams | 7df5231 | 2009-01-11 19:49:11 +0000 | [diff] [blame] | 275 | MODULE_FIRMWARE("mts_cdma.fw"); |
| 276 | MODULE_FIRMWARE("mts_gsm.fw"); |
| 277 | MODULE_FIRMWARE("mts_edge.fw"); |
Alex Manoussakis | cdc0483 | 2010-04-22 15:18:20 -0700 | [diff] [blame] | 278 | MODULE_FIRMWARE("mts_mt9234mu.fw"); |
| 279 | MODULE_FIRMWARE("mts_mt9234zba.fw"); |
David Woodhouse | 5f24e2d | 2008-05-30 18:49:51 +0300 | [diff] [blame] | 280 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 281 | module_param(closing_wait, int, S_IRUGO | S_IWUSR); |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 282 | MODULE_PARM_DESC(closing_wait, |
| 283 | "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] | 284 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 285 | MODULE_DEVICE_TABLE(usb, ti_id_table_combined); |
| 286 | |
Johan Hovold | d7ece65 | 2013-06-26 16:47:43 +0200 | [diff] [blame] | 287 | module_usb_serial_driver(serial_drivers, ti_id_table_combined); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 288 | |
| 289 | /* Functions */ |
| 290 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 291 | static int ti_startup(struct usb_serial *serial) |
| 292 | { |
| 293 | struct ti_device *tdev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 294 | struct usb_device *dev = serial->dev; |
| 295 | int status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 296 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 297 | dev_dbg(&dev->dev, |
Johan Hovold | d9a38a8 | 2014-03-12 19:09:42 +0100 | [diff] [blame] | 298 | "%s - product 0x%4X, num configurations %d, configuration value %d\n", |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 299 | __func__, le16_to_cpu(dev->descriptor.idProduct), |
| 300 | dev->descriptor.bNumConfigurations, |
| 301 | dev->actconfig->desc.bConfigurationValue); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 302 | |
| 303 | /* create device structure */ |
Eric Sesterhenn | 80b6ca4 | 2006-02-27 21:29:43 +0100 | [diff] [blame] | 304 | tdev = kzalloc(sizeof(struct ti_device), GFP_KERNEL); |
Johan Hovold | 10c642d | 2013-12-29 19:22:56 +0100 | [diff] [blame] | 305 | if (!tdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 306 | return -ENOMEM; |
Johan Hovold | 10c642d | 2013-12-29 19:22:56 +0100 | [diff] [blame] | 307 | |
Matthias Kaehlcke | 9da0068 | 2007-11-21 15:13:16 -0800 | [diff] [blame] | 308 | mutex_init(&tdev->td_open_close_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 309 | tdev->td_serial = serial; |
| 310 | usb_set_serial_data(serial, tdev); |
| 311 | |
| 312 | /* determine device type */ |
Johan Hovold | 1fad564 | 2013-06-28 12:24:26 +0200 | [diff] [blame] | 313 | if (serial->type == &ti_1port_device) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 314 | tdev->td_is_3410 = 1; |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 315 | dev_dbg(&dev->dev, "%s - device type is %s\n", __func__, |
| 316 | tdev->td_is_3410 ? "3410" : "5052"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 317 | |
| 318 | /* if we have only 1 configuration, download firmware */ |
| 319 | if (dev->descriptor.bNumConfigurations == 1) { |
Adhir Ramjiawan | 72b27a0 | 2012-04-09 14:01:38 +0200 | [diff] [blame] | 320 | status = ti_download_firmware(tdev); |
| 321 | |
| 322 | if (status != 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 323 | goto free_tdev; |
| 324 | |
| 325 | /* 3410 must be reset, 5052 resets itself */ |
| 326 | if (tdev->td_is_3410) { |
| 327 | msleep_interruptible(100); |
| 328 | usb_reset_device(dev); |
| 329 | } |
| 330 | |
| 331 | status = -ENODEV; |
| 332 | goto free_tdev; |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 333 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 334 | |
Oliver Neukum | 413ba6f | 2008-12-16 12:25:55 +0100 | [diff] [blame] | 335 | /* the second configuration must be set */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 336 | if (dev->actconfig->desc.bConfigurationValue == TI_BOOT_CONFIG) { |
Oliver Neukum | 413ba6f | 2008-12-16 12:25:55 +0100 | [diff] [blame] | 337 | status = usb_driver_set_configuration(dev, TI_ACTIVE_CONFIG); |
| 338 | status = status ? status : -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 339 | goto free_tdev; |
| 340 | } |
| 341 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 342 | return 0; |
| 343 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 344 | free_tdev: |
| 345 | kfree(tdev); |
| 346 | usb_set_serial_data(serial, NULL); |
| 347 | return status; |
| 348 | } |
| 349 | |
| 350 | |
Alan Stern | f9c99bb | 2009-06-02 11:53:55 -0400 | [diff] [blame] | 351 | static void ti_release(struct usb_serial *serial) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 352 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 353 | struct ti_device *tdev = usb_get_serial_data(serial); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 354 | |
Jesper Juhl | 1bc3c9e | 2005-04-18 17:39:34 -0700 | [diff] [blame] | 355 | kfree(tdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 356 | } |
| 357 | |
Johan Hovold | 51ef847 | 2012-10-17 16:31:35 +0200 | [diff] [blame] | 358 | static int ti_port_probe(struct usb_serial_port *port) |
| 359 | { |
| 360 | struct ti_port *tport; |
| 361 | |
| 362 | tport = kzalloc(sizeof(*tport), GFP_KERNEL); |
| 363 | if (!tport) |
| 364 | return -ENOMEM; |
| 365 | |
| 366 | spin_lock_init(&tport->tp_lock); |
| 367 | if (port == port->serial->port[0]) |
| 368 | tport->tp_uart_base_addr = TI_UART1_BASE_ADDR; |
| 369 | else |
| 370 | tport->tp_uart_base_addr = TI_UART2_BASE_ADDR; |
Johan Hovold | f1175da | 2013-04-18 17:33:23 +0200 | [diff] [blame] | 371 | port->port.closing_wait = msecs_to_jiffies(10 * closing_wait); |
Johan Hovold | 51ef847 | 2012-10-17 16:31:35 +0200 | [diff] [blame] | 372 | tport->tp_port = port; |
| 373 | tport->tp_tdev = usb_get_serial_data(port->serial); |
| 374 | tport->tp_uart_mode = 0; /* default is RS232 */ |
| 375 | |
| 376 | usb_set_serial_port_data(port, tport); |
| 377 | |
Johan Hovold | d7be622 | 2013-06-26 16:47:23 +0200 | [diff] [blame] | 378 | port->port.drain_delay = 3; |
| 379 | |
Johan Hovold | 51ef847 | 2012-10-17 16:31:35 +0200 | [diff] [blame] | 380 | return 0; |
| 381 | } |
| 382 | |
| 383 | static int ti_port_remove(struct usb_serial_port *port) |
| 384 | { |
| 385 | struct ti_port *tport; |
| 386 | |
| 387 | tport = usb_get_serial_port_data(port); |
Johan Hovold | 51ef847 | 2012-10-17 16:31:35 +0200 | [diff] [blame] | 388 | kfree(tport); |
| 389 | |
| 390 | return 0; |
| 391 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 392 | |
Alan Cox | a509a7e | 2009-09-19 13:13:26 -0700 | [diff] [blame] | 393 | 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] | 394 | { |
| 395 | struct ti_port *tport = usb_get_serial_port_data(port); |
| 396 | struct ti_device *tdev; |
| 397 | struct usb_device *dev; |
| 398 | struct urb *urb; |
| 399 | int port_number; |
| 400 | int status; |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 401 | __u16 open_settings = (__u8)(TI_PIPE_MODE_CONTINOUS | |
| 402 | TI_PIPE_TIMEOUT_ENABLE | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 403 | (TI_TRANSFER_TIMEOUT << 2)); |
| 404 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 405 | if (tport == NULL) |
| 406 | return -ENODEV; |
| 407 | |
| 408 | dev = port->serial->dev; |
| 409 | tdev = tport->tp_tdev; |
| 410 | |
| 411 | /* only one open on any port on a device at a time */ |
Matthias Kaehlcke | 9da0068 | 2007-11-21 15:13:16 -0800 | [diff] [blame] | 412 | if (mutex_lock_interruptible(&tdev->td_open_close_lock)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 413 | return -ERESTARTSYS; |
| 414 | |
Greg Kroah-Hartman | 1143832 | 2013-06-06 10:32:00 -0700 | [diff] [blame] | 415 | port_number = port->port_number; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 416 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 417 | tport->tp_msr = 0; |
| 418 | tport->tp_shadow_mcr |= (TI_MCR_RTS | TI_MCR_DTR); |
| 419 | |
| 420 | /* start interrupt urb the first time a port is opened on this device */ |
| 421 | if (tdev->td_open_port_count == 0) { |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 422 | dev_dbg(&port->dev, "%s - start interrupt in urb\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 423 | urb = tdev->td_serial->port[0]->interrupt_in_urb; |
| 424 | if (!urb) { |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 425 | dev_err(&port->dev, "%s - no interrupt urb\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 426 | status = -EINVAL; |
Matthias Kaehlcke | 9da0068 | 2007-11-21 15:13:16 -0800 | [diff] [blame] | 427 | goto release_lock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 428 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 429 | urb->context = tdev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 430 | status = usb_submit_urb(urb, GFP_KERNEL); |
| 431 | if (status) { |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 432 | 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] | 433 | goto release_lock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 434 | } |
| 435 | } |
| 436 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 437 | if (tty) |
Alan Cox | adc8d74 | 2012-07-14 15:31:47 +0100 | [diff] [blame] | 438 | ti_set_termios(tty, port, &tty->termios); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 439 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 440 | dev_dbg(&port->dev, "%s - sending TI_OPEN_PORT\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 441 | status = ti_command_out_sync(tdev, TI_OPEN_PORT, |
| 442 | (__u8)(TI_UART1_PORT + port_number), open_settings, NULL, 0); |
| 443 | if (status) { |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 444 | dev_err(&port->dev, "%s - cannot send open command, %d\n", |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 445 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 446 | goto unlink_int_urb; |
| 447 | } |
| 448 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 449 | dev_dbg(&port->dev, "%s - sending TI_START_PORT\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 450 | status = ti_command_out_sync(tdev, TI_START_PORT, |
| 451 | (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0); |
| 452 | if (status) { |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 453 | dev_err(&port->dev, "%s - cannot send start command, %d\n", |
| 454 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 455 | goto unlink_int_urb; |
| 456 | } |
| 457 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 458 | dev_dbg(&port->dev, "%s - sending TI_PURGE_PORT\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 459 | status = ti_command_out_sync(tdev, TI_PURGE_PORT, |
| 460 | (__u8)(TI_UART1_PORT + port_number), TI_PURGE_INPUT, NULL, 0); |
| 461 | if (status) { |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 462 | dev_err(&port->dev, "%s - cannot clear input buffers, %d\n", |
| 463 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 464 | goto unlink_int_urb; |
| 465 | } |
| 466 | status = ti_command_out_sync(tdev, TI_PURGE_PORT, |
| 467 | (__u8)(TI_UART1_PORT + port_number), TI_PURGE_OUTPUT, NULL, 0); |
| 468 | if (status) { |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 469 | dev_err(&port->dev, "%s - cannot clear output buffers, %d\n", |
| 470 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 471 | goto unlink_int_urb; |
| 472 | } |
| 473 | |
| 474 | /* reset the data toggle on the bulk endpoints to work around bug in |
| 475 | * host controllers where things get out of sync some times */ |
| 476 | usb_clear_halt(dev, port->write_urb->pipe); |
| 477 | usb_clear_halt(dev, port->read_urb->pipe); |
| 478 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 479 | if (tty) |
Alan Cox | adc8d74 | 2012-07-14 15:31:47 +0100 | [diff] [blame] | 480 | ti_set_termios(tty, port, &tty->termios); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 481 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 482 | dev_dbg(&port->dev, "%s - sending TI_OPEN_PORT (2)\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 483 | status = ti_command_out_sync(tdev, TI_OPEN_PORT, |
| 484 | (__u8)(TI_UART1_PORT + port_number), open_settings, NULL, 0); |
| 485 | if (status) { |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 486 | dev_err(&port->dev, "%s - cannot send open command (2), %d\n", |
| 487 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 488 | goto unlink_int_urb; |
| 489 | } |
| 490 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 491 | dev_dbg(&port->dev, "%s - sending TI_START_PORT (2)\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 492 | status = ti_command_out_sync(tdev, TI_START_PORT, |
| 493 | (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0); |
| 494 | if (status) { |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 495 | dev_err(&port->dev, "%s - cannot send start command (2), %d\n", |
| 496 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 497 | goto unlink_int_urb; |
| 498 | } |
| 499 | |
| 500 | /* start read urb */ |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 501 | dev_dbg(&port->dev, "%s - start read urb\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 502 | urb = port->read_urb; |
| 503 | if (!urb) { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 504 | dev_err(&port->dev, "%s - no read urb\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 505 | status = -EINVAL; |
| 506 | goto unlink_int_urb; |
| 507 | } |
| 508 | tport->tp_read_urb_state = TI_READ_URB_RUNNING; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 509 | urb->context = tport; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 510 | status = usb_submit_urb(urb, GFP_KERNEL); |
| 511 | if (status) { |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 512 | dev_err(&port->dev, "%s - submit read urb failed, %d\n", |
| 513 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 514 | goto unlink_int_urb; |
| 515 | } |
| 516 | |
| 517 | tport->tp_is_open = 1; |
| 518 | ++tdev->td_open_port_count; |
| 519 | |
Matthias Kaehlcke | 9da0068 | 2007-11-21 15:13:16 -0800 | [diff] [blame] | 520 | goto release_lock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 521 | |
| 522 | unlink_int_urb: |
| 523 | if (tdev->td_open_port_count == 0) |
| 524 | usb_kill_urb(port->serial->port[0]->interrupt_in_urb); |
Matthias Kaehlcke | 9da0068 | 2007-11-21 15:13:16 -0800 | [diff] [blame] | 525 | release_lock: |
| 526 | mutex_unlock(&tdev->td_open_close_lock); |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 527 | dev_dbg(&port->dev, "%s - exit %d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 528 | return status; |
| 529 | } |
| 530 | |
| 531 | |
Alan Cox | 335f851 | 2009-06-11 12:26:29 +0100 | [diff] [blame] | 532 | static void ti_close(struct usb_serial_port *port) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 533 | { |
| 534 | struct ti_device *tdev; |
| 535 | struct ti_port *tport; |
| 536 | int port_number; |
| 537 | int status; |
Matthias Kaehlcke | 9da0068 | 2007-11-21 15:13:16 -0800 | [diff] [blame] | 538 | int do_unlock; |
Johan Hovold | 113ec31 | 2013-04-18 17:33:19 +0200 | [diff] [blame] | 539 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 540 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 541 | tdev = usb_get_serial_data(port->serial); |
| 542 | tport = usb_get_serial_port_data(port); |
| 543 | if (tdev == NULL || tport == NULL) |
| 544 | return; |
| 545 | |
| 546 | tport->tp_is_open = 0; |
| 547 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 548 | usb_kill_urb(port->read_urb); |
| 549 | usb_kill_urb(port->write_urb); |
| 550 | tport->tp_write_urb_in_use = 0; |
Johan Hovold | 113ec31 | 2013-04-18 17:33:19 +0200 | [diff] [blame] | 551 | spin_lock_irqsave(&tport->tp_lock, flags); |
Johan Hovold | cd1e098 | 2013-06-26 16:47:41 +0200 | [diff] [blame] | 552 | kfifo_reset_out(&port->write_fifo); |
Johan Hovold | 113ec31 | 2013-04-18 17:33:19 +0200 | [diff] [blame] | 553 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 554 | |
Greg Kroah-Hartman | 1143832 | 2013-06-06 10:32:00 -0700 | [diff] [blame] | 555 | port_number = port->port_number; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 556 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 557 | dev_dbg(&port->dev, "%s - sending TI_CLOSE_PORT\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 558 | status = ti_command_out_sync(tdev, TI_CLOSE_PORT, |
| 559 | (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0); |
| 560 | if (status) |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 561 | dev_err(&port->dev, |
| 562 | "%s - cannot send close port command, %d\n" |
| 563 | , __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 564 | |
Matthias Kaehlcke | 9da0068 | 2007-11-21 15:13:16 -0800 | [diff] [blame] | 565 | /* if mutex_lock is interrupted, continue anyway */ |
| 566 | do_unlock = !mutex_lock_interruptible(&tdev->td_open_close_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 567 | --tport->tp_tdev->td_open_port_count; |
| 568 | if (tport->tp_tdev->td_open_port_count <= 0) { |
| 569 | /* last port is closed, shut down interrupt urb */ |
| 570 | usb_kill_urb(port->serial->port[0]->interrupt_in_urb); |
| 571 | tport->tp_tdev->td_open_port_count = 0; |
| 572 | } |
Matthias Kaehlcke | 9da0068 | 2007-11-21 15:13:16 -0800 | [diff] [blame] | 573 | if (do_unlock) |
| 574 | mutex_unlock(&tdev->td_open_close_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 575 | } |
| 576 | |
| 577 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 578 | static int ti_write(struct tty_struct *tty, struct usb_serial_port *port, |
| 579 | const unsigned char *data, int count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 580 | { |
| 581 | struct ti_port *tport = usb_get_serial_port_data(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 582 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 583 | if (count == 0) { |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 584 | dev_dbg(&port->dev, "%s - write request of 0 bytes\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 585 | return 0; |
| 586 | } |
| 587 | |
| 588 | if (tport == NULL || !tport->tp_is_open) |
| 589 | return -ENODEV; |
| 590 | |
Johan Hovold | cd1e098 | 2013-06-26 16:47:41 +0200 | [diff] [blame] | 591 | count = kfifo_in_locked(&port->write_fifo, data, count, |
Johan Hovold | 074ef65 | 2010-05-19 00:01:35 +0200 | [diff] [blame] | 592 | &tport->tp_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 593 | ti_send(tport); |
| 594 | |
| 595 | return count; |
| 596 | } |
| 597 | |
| 598 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 599 | static int ti_write_room(struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 600 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 601 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 602 | struct ti_port *tport = usb_get_serial_port_data(port); |
| 603 | int room = 0; |
| 604 | unsigned long flags; |
| 605 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 606 | if (tport == NULL) |
Alan Cox | 23198fd | 2009-07-20 16:05:27 +0100 | [diff] [blame] | 607 | return 0; |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 608 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 609 | spin_lock_irqsave(&tport->tp_lock, flags); |
Johan Hovold | cd1e098 | 2013-06-26 16:47:41 +0200 | [diff] [blame] | 610 | room = kfifo_avail(&port->write_fifo); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 611 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
| 612 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 613 | dev_dbg(&port->dev, "%s - returns %d\n", __func__, room); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 614 | return room; |
| 615 | } |
| 616 | |
| 617 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 618 | static int ti_chars_in_buffer(struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 619 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 620 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 621 | struct ti_port *tport = usb_get_serial_port_data(port); |
| 622 | int chars = 0; |
| 623 | unsigned long flags; |
| 624 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 625 | if (tport == NULL) |
Alan Cox | 23198fd | 2009-07-20 16:05:27 +0100 | [diff] [blame] | 626 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 627 | |
| 628 | spin_lock_irqsave(&tport->tp_lock, flags); |
Johan Hovold | cd1e098 | 2013-06-26 16:47:41 +0200 | [diff] [blame] | 629 | chars = kfifo_len(&port->write_fifo); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 630 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
| 631 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 632 | dev_dbg(&port->dev, "%s - returns %d\n", __func__, chars); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 633 | return chars; |
| 634 | } |
| 635 | |
Johan Hovold | ff93b19 | 2013-05-05 20:32:32 +0200 | [diff] [blame] | 636 | static bool ti_tx_empty(struct usb_serial_port *port) |
| 637 | { |
| 638 | struct ti_port *tport = usb_get_serial_port_data(port); |
| 639 | int ret; |
| 640 | u8 lsr; |
| 641 | |
| 642 | ret = ti_get_lsr(tport, &lsr); |
| 643 | if (!ret && !(lsr & TI_LSR_TX_EMPTY)) |
| 644 | return false; |
| 645 | |
| 646 | return true; |
| 647 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 648 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 649 | static void ti_throttle(struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 650 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 651 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 652 | struct ti_port *tport = usb_get_serial_port_data(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 653 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 654 | if (tport == NULL) |
| 655 | return; |
| 656 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 657 | if (I_IXOFF(tty) || C_CRTSCTS(tty)) |
| 658 | ti_stop_read(tport, tty); |
| 659 | |
| 660 | } |
| 661 | |
| 662 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 663 | static void ti_unthrottle(struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 664 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 665 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 666 | struct ti_port *tport = usb_get_serial_port_data(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 667 | int status; |
| 668 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 669 | if (tport == NULL) |
| 670 | return; |
| 671 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 672 | if (I_IXOFF(tty) || C_CRTSCTS(tty)) { |
| 673 | status = ti_restart_read(tport, tty); |
| 674 | if (status) |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 675 | dev_err(&port->dev, "%s - cannot restart read, %d\n", |
| 676 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 677 | } |
| 678 | } |
| 679 | |
Alan Cox | 00a0d0d | 2011-02-14 16:27:06 +0000 | [diff] [blame] | 680 | static int ti_ioctl(struct tty_struct *tty, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 681 | unsigned int cmd, unsigned long arg) |
| 682 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 683 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 684 | struct ti_port *tport = usb_get_serial_port_data(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 685 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 686 | if (tport == NULL) |
| 687 | return -ENODEV; |
| 688 | |
| 689 | switch (cmd) { |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 690 | case TIOCGSERIAL: |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 691 | dev_dbg(&port->dev, "%s - TIOCGSERIAL\n", __func__); |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 692 | return ti_get_serial_info(tport, |
| 693 | (struct serial_struct __user *)arg); |
| 694 | case TIOCSSERIAL: |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 695 | dev_dbg(&port->dev, "%s - TIOCSSERIAL\n", __func__); |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 696 | return ti_set_serial_info(tty, tport, |
| 697 | (struct serial_struct __user *)arg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 698 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 699 | return -ENOIOCTLCMD; |
| 700 | } |
| 701 | |
| 702 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 703 | static void ti_set_termios(struct tty_struct *tty, |
| 704 | struct usb_serial_port *port, struct ktermios *old_termios) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 705 | { |
| 706 | struct ti_port *tport = usb_get_serial_port_data(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 707 | struct ti_uart_config *config; |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 708 | tcflag_t cflag, iflag; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 709 | int baud; |
| 710 | int status; |
Greg Kroah-Hartman | 1143832 | 2013-06-06 10:32:00 -0700 | [diff] [blame] | 711 | int port_number = port->port_number; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 712 | unsigned int mcr; |
| 713 | |
Alan Cox | adc8d74 | 2012-07-14 15:31:47 +0100 | [diff] [blame] | 714 | cflag = tty->termios.c_cflag; |
| 715 | iflag = tty->termios.c_iflag; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 716 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 717 | dev_dbg(&port->dev, "%s - cflag %08x, iflag %08x\n", __func__, cflag, iflag); |
| 718 | dev_dbg(&port->dev, "%s - old clfag %08x, old iflag %08x\n", __func__, |
| 719 | old_termios->c_cflag, old_termios->c_iflag); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 720 | |
| 721 | if (tport == NULL) |
| 722 | return; |
| 723 | |
| 724 | config = kmalloc(sizeof(*config), GFP_KERNEL); |
Johan Hovold | 10c642d | 2013-12-29 19:22:56 +0100 | [diff] [blame] | 725 | if (!config) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 726 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 727 | |
| 728 | config->wFlags = 0; |
| 729 | |
| 730 | /* these flags must be set */ |
| 731 | config->wFlags |= TI_UART_ENABLE_MS_INTS; |
| 732 | config->wFlags |= TI_UART_ENABLE_AUTO_START_DMA; |
| 733 | config->bUartMode = (__u8)(tport->tp_uart_mode); |
| 734 | |
| 735 | switch (cflag & CSIZE) { |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 736 | case CS5: |
| 737 | config->bDataBits = TI_UART_5_DATA_BITS; |
| 738 | break; |
| 739 | case CS6: |
| 740 | config->bDataBits = TI_UART_6_DATA_BITS; |
| 741 | break; |
| 742 | case CS7: |
| 743 | config->bDataBits = TI_UART_7_DATA_BITS; |
| 744 | break; |
| 745 | default: |
| 746 | case CS8: |
| 747 | config->bDataBits = TI_UART_8_DATA_BITS; |
| 748 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 749 | } |
| 750 | |
Alan Cox | 537699e | 2008-01-03 17:03:11 +0000 | [diff] [blame] | 751 | /* CMSPAR isn't supported by this driver */ |
Alan Cox | adc8d74 | 2012-07-14 15:31:47 +0100 | [diff] [blame] | 752 | tty->termios.c_cflag &= ~CMSPAR; |
Alan Cox | 537699e | 2008-01-03 17:03:11 +0000 | [diff] [blame] | 753 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 754 | if (cflag & PARENB) { |
| 755 | if (cflag & PARODD) { |
| 756 | config->wFlags |= TI_UART_ENABLE_PARITY_CHECKING; |
| 757 | config->bParity = TI_UART_ODD_PARITY; |
| 758 | } else { |
| 759 | config->wFlags |= TI_UART_ENABLE_PARITY_CHECKING; |
| 760 | config->bParity = TI_UART_EVEN_PARITY; |
| 761 | } |
| 762 | } else { |
| 763 | config->wFlags &= ~TI_UART_ENABLE_PARITY_CHECKING; |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 764 | config->bParity = TI_UART_NO_PARITY; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 765 | } |
| 766 | |
| 767 | if (cflag & CSTOPB) |
| 768 | config->bStopBits = TI_UART_2_STOP_BITS; |
| 769 | else |
| 770 | config->bStopBits = TI_UART_1_STOP_BITS; |
| 771 | |
| 772 | if (cflag & CRTSCTS) { |
| 773 | /* RTS flow control must be off to drop RTS for baud rate B0 */ |
| 774 | if ((cflag & CBAUD) != B0) |
| 775 | config->wFlags |= TI_UART_ENABLE_RTS_IN; |
| 776 | config->wFlags |= TI_UART_ENABLE_CTS_OUT; |
| 777 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 778 | ti_restart_read(tport, tty); |
| 779 | } |
| 780 | |
| 781 | if (I_IXOFF(tty) || I_IXON(tty)) { |
| 782 | config->cXon = START_CHAR(tty); |
| 783 | config->cXoff = STOP_CHAR(tty); |
| 784 | |
| 785 | if (I_IXOFF(tty)) |
| 786 | config->wFlags |= TI_UART_ENABLE_X_IN; |
| 787 | else |
| 788 | ti_restart_read(tport, tty); |
| 789 | |
| 790 | if (I_IXON(tty)) |
| 791 | config->wFlags |= TI_UART_ENABLE_X_OUT; |
| 792 | } |
| 793 | |
| 794 | baud = tty_get_baud_rate(tty); |
Alan Cox | 537699e | 2008-01-03 17:03:11 +0000 | [diff] [blame] | 795 | if (!baud) |
| 796 | baud = 9600; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 797 | if (tport->tp_tdev->td_is_3410) |
| 798 | config->wBaudRate = (__u16)((923077 + baud/2) / baud); |
| 799 | else |
| 800 | config->wBaudRate = (__u16)((461538 + baud/2) / baud); |
| 801 | |
Alan Cox | 537699e | 2008-01-03 17:03:11 +0000 | [diff] [blame] | 802 | /* FIXME: Should calculate resulting baud here and report it back */ |
| 803 | if ((cflag & CBAUD) != B0) |
| 804 | tty_encode_baud_rate(tty, baud, baud); |
| 805 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 806 | dev_dbg(&port->dev, |
Johan Hovold | d9a38a8 | 2014-03-12 19:09:42 +0100 | [diff] [blame] | 807 | "%s - BaudRate=%d, wBaudRate=%d, wFlags=0x%04X, bDataBits=%d, bParity=%d, bStopBits=%d, cXon=%d, cXoff=%d, bUartMode=%d\n", |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 808 | __func__, baud, config->wBaudRate, config->wFlags, |
| 809 | config->bDataBits, config->bParity, config->bStopBits, |
| 810 | config->cXon, config->cXoff, config->bUartMode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 811 | |
| 812 | cpu_to_be16s(&config->wBaudRate); |
| 813 | cpu_to_be16s(&config->wFlags); |
| 814 | |
| 815 | status = ti_command_out_sync(tport->tp_tdev, TI_SET_CONFIG, |
| 816 | (__u8)(TI_UART1_PORT + port_number), 0, (__u8 *)config, |
| 817 | sizeof(*config)); |
| 818 | if (status) |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 819 | dev_err(&port->dev, "%s - cannot set config on port %d, %d\n", |
| 820 | __func__, port_number, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 821 | |
| 822 | /* SET_CONFIG asserts RTS and DTR, reset them correctly */ |
| 823 | mcr = tport->tp_shadow_mcr; |
| 824 | /* if baud rate is B0, clear RTS and DTR */ |
| 825 | if ((cflag & CBAUD) == B0) |
| 826 | mcr &= ~(TI_MCR_DTR | TI_MCR_RTS); |
| 827 | status = ti_set_mcr(tport, mcr); |
| 828 | if (status) |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 829 | dev_err(&port->dev, |
| 830 | "%s - cannot set modem control on port %d, %d\n", |
| 831 | __func__, port_number, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 832 | |
| 833 | kfree(config); |
| 834 | } |
| 835 | |
| 836 | |
Alan Cox | 60b33c1 | 2011-02-14 16:26:14 +0000 | [diff] [blame] | 837 | static int ti_tiocmget(struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 838 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 839 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 840 | struct ti_port *tport = usb_get_serial_port_data(port); |
| 841 | unsigned int result; |
| 842 | unsigned int msr; |
| 843 | unsigned int mcr; |
Alan Cox | 04ca89d | 2008-02-20 21:41:40 +0000 | [diff] [blame] | 844 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 845 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 846 | if (tport == NULL) |
| 847 | return -ENODEV; |
| 848 | |
Alan Cox | 04ca89d | 2008-02-20 21:41:40 +0000 | [diff] [blame] | 849 | spin_lock_irqsave(&tport->tp_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 850 | msr = tport->tp_msr; |
| 851 | mcr = tport->tp_shadow_mcr; |
Alan Cox | 04ca89d | 2008-02-20 21:41:40 +0000 | [diff] [blame] | 852 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 853 | |
| 854 | result = ((mcr & TI_MCR_DTR) ? TIOCM_DTR : 0) |
| 855 | | ((mcr & TI_MCR_RTS) ? TIOCM_RTS : 0) |
| 856 | | ((mcr & TI_MCR_LOOP) ? TIOCM_LOOP : 0) |
| 857 | | ((msr & TI_MSR_CTS) ? TIOCM_CTS : 0) |
| 858 | | ((msr & TI_MSR_CD) ? TIOCM_CAR : 0) |
| 859 | | ((msr & TI_MSR_RI) ? TIOCM_RI : 0) |
| 860 | | ((msr & TI_MSR_DSR) ? TIOCM_DSR : 0); |
| 861 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 862 | dev_dbg(&port->dev, "%s - 0x%04X\n", __func__, result); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 863 | |
| 864 | return result; |
| 865 | } |
| 866 | |
| 867 | |
Alan Cox | 20b9d17 | 2011-02-14 16:26:50 +0000 | [diff] [blame] | 868 | static int ti_tiocmset(struct tty_struct *tty, |
| 869 | unsigned int set, unsigned int clear) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 870 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 871 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 872 | struct ti_port *tport = usb_get_serial_port_data(port); |
| 873 | unsigned int mcr; |
Alan Cox | 04ca89d | 2008-02-20 21:41:40 +0000 | [diff] [blame] | 874 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 875 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 876 | if (tport == NULL) |
| 877 | return -ENODEV; |
| 878 | |
Alan Cox | 04ca89d | 2008-02-20 21:41:40 +0000 | [diff] [blame] | 879 | spin_lock_irqsave(&tport->tp_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 880 | mcr = tport->tp_shadow_mcr; |
| 881 | |
| 882 | if (set & TIOCM_RTS) |
| 883 | mcr |= TI_MCR_RTS; |
| 884 | if (set & TIOCM_DTR) |
| 885 | mcr |= TI_MCR_DTR; |
| 886 | if (set & TIOCM_LOOP) |
| 887 | mcr |= TI_MCR_LOOP; |
| 888 | |
| 889 | if (clear & TIOCM_RTS) |
| 890 | mcr &= ~TI_MCR_RTS; |
| 891 | if (clear & TIOCM_DTR) |
| 892 | mcr &= ~TI_MCR_DTR; |
| 893 | if (clear & TIOCM_LOOP) |
| 894 | mcr &= ~TI_MCR_LOOP; |
Alan Cox | 04ca89d | 2008-02-20 21:41:40 +0000 | [diff] [blame] | 895 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 896 | |
| 897 | return ti_set_mcr(tport, mcr); |
| 898 | } |
| 899 | |
| 900 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 901 | static void ti_break(struct tty_struct *tty, int break_state) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 902 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 903 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 904 | struct ti_port *tport = usb_get_serial_port_data(port); |
| 905 | int status; |
| 906 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 907 | dev_dbg(&port->dev, "%s - state = %d\n", __func__, break_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 908 | |
| 909 | if (tport == NULL) |
| 910 | return; |
| 911 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 912 | status = ti_write_byte(port, tport->tp_tdev, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 913 | tport->tp_uart_base_addr + TI_UART_OFFSET_LCR, |
| 914 | TI_LCR_BREAK, break_state == -1 ? TI_LCR_BREAK : 0); |
| 915 | |
| 916 | if (status) |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 917 | dev_dbg(&port->dev, "%s - error setting break, %d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 918 | } |
| 919 | |
| 920 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 921 | static void ti_interrupt_callback(struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 922 | { |
Ming Lei | cdc9779 | 2008-02-24 18:41:47 +0800 | [diff] [blame] | 923 | struct ti_device *tdev = urb->context; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 924 | struct usb_serial_port *port; |
| 925 | struct usb_serial *serial = tdev->td_serial; |
| 926 | struct ti_port *tport; |
| 927 | struct device *dev = &urb->dev->dev; |
| 928 | unsigned char *data = urb->transfer_buffer; |
| 929 | int length = urb->actual_length; |
| 930 | int port_number; |
| 931 | int function; |
Greg Kroah-Hartman | 52171b4 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 932 | int status = urb->status; |
| 933 | int retval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 934 | __u8 msr; |
| 935 | |
Greg Kroah-Hartman | 52171b4 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 936 | switch (status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 937 | case 0: |
| 938 | break; |
| 939 | case -ECONNRESET: |
| 940 | case -ENOENT: |
| 941 | case -ESHUTDOWN: |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 942 | dev_dbg(dev, "%s - urb shutting down, %d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 943 | tdev->td_urb_error = 1; |
| 944 | return; |
| 945 | default: |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 946 | dev_err(dev, "%s - nonzero urb status, %d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 947 | tdev->td_urb_error = 1; |
| 948 | goto exit; |
| 949 | } |
| 950 | |
| 951 | if (length != 2) { |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 952 | dev_dbg(dev, "%s - bad packet size, %d\n", __func__, length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 953 | goto exit; |
| 954 | } |
| 955 | |
| 956 | if (data[0] == TI_CODE_HARDWARE_ERROR) { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 957 | dev_err(dev, "%s - hardware error, %d\n", __func__, data[1]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 958 | goto exit; |
| 959 | } |
| 960 | |
| 961 | port_number = TI_GET_PORT_FROM_CODE(data[0]); |
| 962 | function = TI_GET_FUNC_FROM_CODE(data[0]); |
| 963 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 964 | dev_dbg(dev, "%s - port_number %d, function %d, data 0x%02X\n", |
| 965 | __func__, port_number, function, data[1]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 966 | |
| 967 | if (port_number >= serial->num_ports) { |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 968 | dev_err(dev, "%s - bad port number, %d\n", |
| 969 | __func__, port_number); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 970 | goto exit; |
| 971 | } |
| 972 | |
| 973 | port = serial->port[port_number]; |
| 974 | |
| 975 | tport = usb_get_serial_port_data(port); |
| 976 | if (!tport) |
| 977 | goto exit; |
| 978 | |
| 979 | switch (function) { |
| 980 | case TI_CODE_DATA_ERROR: |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 981 | 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] | 982 | __func__, port_number, data[1]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 983 | break; |
| 984 | |
| 985 | case TI_CODE_MODEM_STATUS: |
| 986 | msr = data[1]; |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 987 | 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] | 988 | ti_handle_new_msr(tport, msr); |
| 989 | break; |
| 990 | |
| 991 | default: |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 992 | dev_err(dev, "%s - unknown interrupt code, 0x%02X\n", |
| 993 | __func__, data[1]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 994 | break; |
| 995 | } |
| 996 | |
| 997 | exit: |
Greg Kroah-Hartman | 52171b4 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 998 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
| 999 | if (retval) |
| 1000 | dev_err(dev, "%s - resubmit interrupt urb failed, %d\n", |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1001 | __func__, retval); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1002 | } |
| 1003 | |
| 1004 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 1005 | static void ti_bulk_in_callback(struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1006 | { |
Ming Lei | cdc9779 | 2008-02-24 18:41:47 +0800 | [diff] [blame] | 1007 | struct ti_port *tport = urb->context; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1008 | struct usb_serial_port *port = tport->tp_port; |
| 1009 | struct device *dev = &urb->dev->dev; |
Greg Kroah-Hartman | 52171b4 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1010 | int status = urb->status; |
| 1011 | int retval = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1012 | |
Greg Kroah-Hartman | 52171b4 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1013 | switch (status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1014 | case 0: |
| 1015 | break; |
| 1016 | case -ECONNRESET: |
| 1017 | case -ENOENT: |
| 1018 | case -ESHUTDOWN: |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 1019 | dev_dbg(dev, "%s - urb shutting down, %d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1020 | tport->tp_tdev->td_urb_error = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1021 | return; |
| 1022 | default: |
Greg Kroah-Hartman | 52171b4 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1023 | dev_err(dev, "%s - nonzero urb status, %d\n", |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 1024 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1025 | tport->tp_tdev->td_urb_error = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1026 | } |
| 1027 | |
Greg Kroah-Hartman | 52171b4 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1028 | if (status == -EPIPE) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1029 | goto exit; |
| 1030 | |
Greg Kroah-Hartman | 52171b4 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1031 | if (status) { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1032 | dev_err(dev, "%s - stopping read!\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1033 | return; |
| 1034 | } |
| 1035 | |
Jiri Slaby | 2e124b4 | 2013-01-03 15:53:06 +0100 | [diff] [blame] | 1036 | if (urb->actual_length) { |
| 1037 | usb_serial_debug_data(dev, __func__, urb->actual_length, |
| 1038 | urb->transfer_buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1039 | |
Jiri Slaby | 2e124b4 | 2013-01-03 15:53:06 +0100 | [diff] [blame] | 1040 | if (!tport->tp_is_open) |
| 1041 | dev_dbg(dev, "%s - port closed, dropping data\n", |
| 1042 | __func__); |
| 1043 | else |
| 1044 | ti_recv(port, urb->transfer_buffer, urb->actual_length); |
| 1045 | spin_lock(&tport->tp_lock); |
Johan Hovold | 783ca35 | 2013-03-21 12:37:33 +0100 | [diff] [blame] | 1046 | port->icount.rx += urb->actual_length; |
Jiri Slaby | 2e124b4 | 2013-01-03 15:53:06 +0100 | [diff] [blame] | 1047 | spin_unlock(&tport->tp_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1048 | } |
| 1049 | |
| 1050 | exit: |
| 1051 | /* continue to read unless stopping */ |
| 1052 | spin_lock(&tport->tp_lock); |
Johan Hovold | 5833041 | 2011-11-06 19:06:28 +0100 | [diff] [blame] | 1053 | if (tport->tp_read_urb_state == TI_READ_URB_RUNNING) |
Greg Kroah-Hartman | 52171b4 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1054 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
Johan Hovold | 5833041 | 2011-11-06 19:06:28 +0100 | [diff] [blame] | 1055 | else if (tport->tp_read_urb_state == TI_READ_URB_STOPPING) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1056 | tport->tp_read_urb_state = TI_READ_URB_STOPPED; |
Johan Hovold | 5833041 | 2011-11-06 19:06:28 +0100 | [diff] [blame] | 1057 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1058 | spin_unlock(&tport->tp_lock); |
Greg Kroah-Hartman | 52171b4 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1059 | if (retval) |
| 1060 | dev_err(dev, "%s - resubmit read urb failed, %d\n", |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1061 | __func__, retval); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1062 | } |
| 1063 | |
| 1064 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 1065 | static void ti_bulk_out_callback(struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1066 | { |
Ming Lei | cdc9779 | 2008-02-24 18:41:47 +0800 | [diff] [blame] | 1067 | struct ti_port *tport = urb->context; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1068 | struct usb_serial_port *port = tport->tp_port; |
Greg Kroah-Hartman | 52171b4 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1069 | int status = urb->status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1070 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1071 | tport->tp_write_urb_in_use = 0; |
| 1072 | |
Greg Kroah-Hartman | 52171b4 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1073 | switch (status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1074 | case 0: |
| 1075 | break; |
| 1076 | case -ECONNRESET: |
| 1077 | case -ENOENT: |
| 1078 | case -ESHUTDOWN: |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 1079 | dev_dbg(&port->dev, "%s - urb shutting down, %d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1080 | tport->tp_tdev->td_urb_error = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1081 | return; |
| 1082 | default: |
Johan Hovold | 22a416c | 2012-02-10 13:20:51 +0100 | [diff] [blame] | 1083 | dev_err_console(port, "%s - nonzero urb status, %d\n", |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1084 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1085 | tport->tp_tdev->td_urb_error = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1086 | } |
| 1087 | |
| 1088 | /* send any buffered data */ |
| 1089 | ti_send(tport); |
| 1090 | } |
| 1091 | |
| 1092 | |
Jiri Slaby | 2e124b4 | 2013-01-03 15:53:06 +0100 | [diff] [blame] | 1093 | static void ti_recv(struct usb_serial_port *port, unsigned char *data, |
| 1094 | int length) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1095 | { |
| 1096 | int cnt; |
| 1097 | |
| 1098 | do { |
Jiri Slaby | 05c7cd3 | 2013-01-03 15:53:04 +0100 | [diff] [blame] | 1099 | cnt = tty_insert_flip_string(&port->port, data, length); |
Alan Cox | 33f0f88 | 2006-01-09 20:54:13 -0800 | [diff] [blame] | 1100 | if (cnt < length) { |
Jiri Slaby | 05c7cd3 | 2013-01-03 15:53:04 +0100 | [diff] [blame] | 1101 | dev_err(&port->dev, "%s - dropping data, %d bytes lost\n", |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 1102 | __func__, length - cnt); |
| 1103 | if (cnt == 0) |
Alan Cox | 33f0f88 | 2006-01-09 20:54:13 -0800 | [diff] [blame] | 1104 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1105 | } |
Jiri Slaby | 2e124b4 | 2013-01-03 15:53:06 +0100 | [diff] [blame] | 1106 | tty_flip_buffer_push(&port->port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1107 | data += cnt; |
| 1108 | length -= cnt; |
| 1109 | } while (length > 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1110 | } |
| 1111 | |
| 1112 | |
| 1113 | static void ti_send(struct ti_port *tport) |
| 1114 | { |
| 1115 | int count, result; |
| 1116 | struct usb_serial_port *port = tport->tp_port; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1117 | unsigned long flags; |
| 1118 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1119 | spin_lock_irqsave(&tport->tp_lock, flags); |
| 1120 | |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1121 | if (tport->tp_write_urb_in_use) |
| 1122 | goto unlock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1123 | |
Johan Hovold | cd1e098 | 2013-06-26 16:47:41 +0200 | [diff] [blame] | 1124 | count = kfifo_out(&port->write_fifo, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1125 | port->write_urb->transfer_buffer, |
| 1126 | port->bulk_out_size); |
| 1127 | |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1128 | if (count == 0) |
| 1129 | goto unlock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1130 | |
| 1131 | tport->tp_write_urb_in_use = 1; |
| 1132 | |
| 1133 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
| 1134 | |
Greg Kroah-Hartman | 59d33f2 | 2012-09-18 09:58:57 +0100 | [diff] [blame] | 1135 | usb_serial_debug_data(&port->dev, __func__, count, |
| 1136 | port->write_urb->transfer_buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1137 | |
| 1138 | usb_fill_bulk_urb(port->write_urb, port->serial->dev, |
| 1139 | usb_sndbulkpipe(port->serial->dev, |
| 1140 | port->bulk_out_endpointAddress), |
| 1141 | port->write_urb->transfer_buffer, count, |
| 1142 | ti_bulk_out_callback, tport); |
| 1143 | |
| 1144 | result = usb_submit_urb(port->write_urb, GFP_ATOMIC); |
| 1145 | if (result) { |
Johan Hovold | 22a416c | 2012-02-10 13:20:51 +0100 | [diff] [blame] | 1146 | dev_err_console(port, "%s - submit write urb failed, %d\n", |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 1147 | __func__, result); |
| 1148 | tport->tp_write_urb_in_use = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1149 | /* TODO: reschedule ti_send */ |
| 1150 | } else { |
| 1151 | spin_lock_irqsave(&tport->tp_lock, flags); |
Johan Hovold | 783ca35 | 2013-03-21 12:37:33 +0100 | [diff] [blame] | 1152 | port->icount.tx += count; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1153 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
| 1154 | } |
| 1155 | |
| 1156 | /* more room in the buffer for new writes, wakeup */ |
Jiri Slaby | 6aad04f | 2013-03-07 13:12:29 +0100 | [diff] [blame] | 1157 | tty_port_tty_wakeup(&port->port); |
| 1158 | |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1159 | return; |
| 1160 | unlock: |
| 1161 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1162 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1163 | } |
| 1164 | |
| 1165 | |
| 1166 | static int ti_set_mcr(struct ti_port *tport, unsigned int mcr) |
| 1167 | { |
Alan Cox | 04ca89d | 2008-02-20 21:41:40 +0000 | [diff] [blame] | 1168 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1169 | int status; |
| 1170 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 1171 | status = ti_write_byte(tport->tp_port, tport->tp_tdev, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1172 | tport->tp_uart_base_addr + TI_UART_OFFSET_MCR, |
| 1173 | TI_MCR_RTS | TI_MCR_DTR | TI_MCR_LOOP, mcr); |
| 1174 | |
Alan Cox | 04ca89d | 2008-02-20 21:41:40 +0000 | [diff] [blame] | 1175 | spin_lock_irqsave(&tport->tp_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1176 | if (!status) |
| 1177 | tport->tp_shadow_mcr = mcr; |
Alan Cox | 04ca89d | 2008-02-20 21:41:40 +0000 | [diff] [blame] | 1178 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1179 | |
| 1180 | return status; |
| 1181 | } |
| 1182 | |
| 1183 | |
Johan Hovold | b5784f7 | 2013-04-18 17:33:20 +0200 | [diff] [blame] | 1184 | static int ti_get_lsr(struct ti_port *tport, u8 *lsr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1185 | { |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 1186 | int size, status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1187 | struct ti_device *tdev = tport->tp_tdev; |
| 1188 | struct usb_serial_port *port = tport->tp_port; |
Greg Kroah-Hartman | 1143832 | 2013-06-06 10:32:00 -0700 | [diff] [blame] | 1189 | int port_number = port->port_number; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1190 | struct ti_port_status *data; |
| 1191 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1192 | size = sizeof(struct ti_port_status); |
| 1193 | data = kmalloc(size, GFP_KERNEL); |
Johan Hovold | 10c642d | 2013-12-29 19:22:56 +0100 | [diff] [blame] | 1194 | if (!data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1195 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1196 | |
| 1197 | status = ti_command_in_sync(tdev, TI_GET_PORT_STATUS, |
| 1198 | (__u8)(TI_UART1_PORT+port_number), 0, (__u8 *)data, size); |
| 1199 | if (status) { |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 1200 | dev_err(&port->dev, |
| 1201 | "%s - get port status command failed, %d\n", |
| 1202 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1203 | goto free_data; |
| 1204 | } |
| 1205 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 1206 | dev_dbg(&port->dev, "%s - lsr 0x%02X\n", __func__, data->bLSR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1207 | |
Johan Hovold | b5784f7 | 2013-04-18 17:33:20 +0200 | [diff] [blame] | 1208 | *lsr = data->bLSR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1209 | |
| 1210 | free_data: |
| 1211 | kfree(data); |
| 1212 | return status; |
| 1213 | } |
| 1214 | |
| 1215 | |
| 1216 | static int ti_get_serial_info(struct ti_port *tport, |
| 1217 | struct serial_struct __user *ret_arg) |
| 1218 | { |
| 1219 | struct usb_serial_port *port = tport->tp_port; |
| 1220 | struct serial_struct ret_serial; |
Johan Hovold | f1175da | 2013-04-18 17:33:23 +0200 | [diff] [blame] | 1221 | unsigned cwait; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1222 | |
| 1223 | if (!ret_arg) |
| 1224 | return -EFAULT; |
| 1225 | |
Johan Hovold | f1175da | 2013-04-18 17:33:23 +0200 | [diff] [blame] | 1226 | cwait = port->port.closing_wait; |
| 1227 | if (cwait != ASYNC_CLOSING_WAIT_NONE) |
| 1228 | cwait = jiffies_to_msecs(cwait) / 10; |
| 1229 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1230 | memset(&ret_serial, 0, sizeof(ret_serial)); |
| 1231 | |
| 1232 | ret_serial.type = PORT_16550A; |
Greg Kroah-Hartman | e5b1e20 | 2013-06-07 11:04:28 -0700 | [diff] [blame] | 1233 | ret_serial.line = port->minor; |
Greg Kroah-Hartman | 1143832 | 2013-06-06 10:32:00 -0700 | [diff] [blame] | 1234 | ret_serial.port = port->port_number; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1235 | ret_serial.flags = tport->tp_flags; |
Johan Hovold | cd1e098 | 2013-06-26 16:47:41 +0200 | [diff] [blame] | 1236 | ret_serial.xmit_fifo_size = kfifo_size(&port->write_fifo); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1237 | ret_serial.baud_base = tport->tp_tdev->td_is_3410 ? 921600 : 460800; |
Johan Hovold | f1175da | 2013-04-18 17:33:23 +0200 | [diff] [blame] | 1238 | ret_serial.closing_wait = cwait; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1239 | |
| 1240 | if (copy_to_user(ret_arg, &ret_serial, sizeof(*ret_arg))) |
| 1241 | return -EFAULT; |
| 1242 | |
| 1243 | return 0; |
| 1244 | } |
| 1245 | |
| 1246 | |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1247 | 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] | 1248 | struct serial_struct __user *new_arg) |
| 1249 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1250 | struct serial_struct new_serial; |
Johan Hovold | f1175da | 2013-04-18 17:33:23 +0200 | [diff] [blame] | 1251 | unsigned cwait; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1252 | |
| 1253 | if (copy_from_user(&new_serial, new_arg, sizeof(new_serial))) |
| 1254 | return -EFAULT; |
| 1255 | |
Johan Hovold | f1175da | 2013-04-18 17:33:23 +0200 | [diff] [blame] | 1256 | cwait = new_serial.closing_wait; |
| 1257 | if (cwait != ASYNC_CLOSING_WAIT_NONE) |
| 1258 | cwait = msecs_to_jiffies(10 * new_serial.closing_wait); |
| 1259 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1260 | tport->tp_flags = new_serial.flags & TI_SET_SERIAL_FLAGS; |
Johan Hovold | f1175da | 2013-04-18 17:33:23 +0200 | [diff] [blame] | 1261 | tport->tp_port->port.closing_wait = cwait; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1262 | |
| 1263 | return 0; |
| 1264 | } |
| 1265 | |
| 1266 | |
| 1267 | static void ti_handle_new_msr(struct ti_port *tport, __u8 msr) |
| 1268 | { |
| 1269 | struct async_icount *icount; |
| 1270 | struct tty_struct *tty; |
| 1271 | unsigned long flags; |
| 1272 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 1273 | 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] | 1274 | |
| 1275 | if (msr & TI_MSR_DELTA_MASK) { |
| 1276 | spin_lock_irqsave(&tport->tp_lock, flags); |
Johan Hovold | 783ca35 | 2013-03-21 12:37:33 +0100 | [diff] [blame] | 1277 | icount = &tport->tp_port->icount; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1278 | if (msr & TI_MSR_DELTA_CTS) |
| 1279 | icount->cts++; |
| 1280 | if (msr & TI_MSR_DELTA_DSR) |
| 1281 | icount->dsr++; |
| 1282 | if (msr & TI_MSR_DELTA_CD) |
| 1283 | icount->dcd++; |
| 1284 | if (msr & TI_MSR_DELTA_RI) |
| 1285 | icount->rng++; |
Johan Hovold | 6c75e26 | 2013-03-21 12:37:34 +0100 | [diff] [blame] | 1286 | wake_up_interruptible(&tport->tp_port->port.delta_msr_wait); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1287 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
| 1288 | } |
| 1289 | |
| 1290 | tport->tp_msr = msr & TI_MSR_MASK; |
| 1291 | |
| 1292 | /* handle CTS flow control */ |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1293 | tty = tty_port_tty_get(&tport->tp_port->port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1294 | if (tty && C_CRTSCTS(tty)) { |
Peter Hurley | d95e3ca | 2014-09-10 15:06:27 -0400 | [diff] [blame] | 1295 | if (msr & TI_MSR_CTS) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1296 | tty_wakeup(tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1297 | } |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1298 | tty_kref_put(tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1299 | } |
| 1300 | |
| 1301 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1302 | static void ti_stop_read(struct ti_port *tport, struct tty_struct *tty) |
| 1303 | { |
| 1304 | unsigned long flags; |
| 1305 | |
| 1306 | spin_lock_irqsave(&tport->tp_lock, flags); |
| 1307 | |
| 1308 | if (tport->tp_read_urb_state == TI_READ_URB_RUNNING) |
| 1309 | tport->tp_read_urb_state = TI_READ_URB_STOPPING; |
| 1310 | |
| 1311 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
| 1312 | } |
| 1313 | |
| 1314 | |
| 1315 | static int ti_restart_read(struct ti_port *tport, struct tty_struct *tty) |
| 1316 | { |
| 1317 | struct urb *urb; |
| 1318 | int status = 0; |
| 1319 | unsigned long flags; |
| 1320 | |
| 1321 | spin_lock_irqsave(&tport->tp_lock, flags); |
| 1322 | |
| 1323 | if (tport->tp_read_urb_state == TI_READ_URB_STOPPED) { |
Oliver Neukum | 944dc18 | 2007-05-07 08:33:18 +0200 | [diff] [blame] | 1324 | tport->tp_read_urb_state = TI_READ_URB_RUNNING; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1325 | urb = tport->tp_port->read_urb; |
Oliver Neukum | 944dc18 | 2007-05-07 08:33:18 +0200 | [diff] [blame] | 1326 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1327 | urb->context = tport; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1328 | status = usb_submit_urb(urb, GFP_KERNEL); |
Oliver Neukum | 944dc18 | 2007-05-07 08:33:18 +0200 | [diff] [blame] | 1329 | } else { |
| 1330 | tport->tp_read_urb_state = TI_READ_URB_RUNNING; |
| 1331 | spin_unlock_irqrestore(&tport->tp_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1332 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1333 | |
| 1334 | return status; |
| 1335 | } |
| 1336 | |
| 1337 | |
| 1338 | static int ti_command_out_sync(struct ti_device *tdev, __u8 command, |
| 1339 | __u16 moduleid, __u16 value, __u8 *data, int size) |
| 1340 | { |
| 1341 | int status; |
| 1342 | |
| 1343 | status = usb_control_msg(tdev->td_serial->dev, |
| 1344 | usb_sndctrlpipe(tdev->td_serial->dev, 0), command, |
| 1345 | (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT), |
| 1346 | value, moduleid, data, size, 1000); |
| 1347 | |
| 1348 | if (status == size) |
| 1349 | status = 0; |
| 1350 | |
| 1351 | if (status > 0) |
| 1352 | status = -ECOMM; |
| 1353 | |
| 1354 | return status; |
| 1355 | } |
| 1356 | |
| 1357 | |
| 1358 | static int ti_command_in_sync(struct ti_device *tdev, __u8 command, |
| 1359 | __u16 moduleid, __u16 value, __u8 *data, int size) |
| 1360 | { |
| 1361 | int status; |
| 1362 | |
| 1363 | status = usb_control_msg(tdev->td_serial->dev, |
| 1364 | usb_rcvctrlpipe(tdev->td_serial->dev, 0), command, |
| 1365 | (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN), |
| 1366 | value, moduleid, data, size, 1000); |
| 1367 | |
| 1368 | if (status == size) |
| 1369 | status = 0; |
| 1370 | |
| 1371 | if (status > 0) |
| 1372 | status = -ECOMM; |
| 1373 | |
| 1374 | return status; |
| 1375 | } |
| 1376 | |
| 1377 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 1378 | static int ti_write_byte(struct usb_serial_port *port, |
| 1379 | struct ti_device *tdev, unsigned long addr, |
| 1380 | __u8 mask, __u8 byte) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1381 | { |
| 1382 | int status; |
| 1383 | unsigned int size; |
| 1384 | struct ti_write_data_bytes *data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1385 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 1386 | dev_dbg(&port->dev, "%s - addr 0x%08lX, mask 0x%02X, byte 0x%02X\n", __func__, |
| 1387 | addr, mask, byte); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1388 | |
| 1389 | size = sizeof(struct ti_write_data_bytes) + 2; |
| 1390 | data = kmalloc(size, GFP_KERNEL); |
Johan Hovold | 10c642d | 2013-12-29 19:22:56 +0100 | [diff] [blame] | 1391 | if (!data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1392 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1393 | |
| 1394 | data->bAddrType = TI_RW_DATA_ADDR_XDATA; |
| 1395 | data->bDataType = TI_RW_DATA_BYTE; |
| 1396 | data->bDataCounter = 1; |
| 1397 | data->wBaseAddrHi = cpu_to_be16(addr>>16); |
| 1398 | data->wBaseAddrLo = cpu_to_be16(addr); |
| 1399 | data->bData[0] = mask; |
| 1400 | data->bData[1] = byte; |
| 1401 | |
| 1402 | status = ti_command_out_sync(tdev, TI_WRITE_DATA, TI_RAM_PORT, 0, |
| 1403 | (__u8 *)data, size); |
| 1404 | |
| 1405 | if (status < 0) |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 1406 | dev_err(&port->dev, "%s - failed, %d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1407 | |
| 1408 | kfree(data); |
| 1409 | |
| 1410 | return status; |
| 1411 | } |
| 1412 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1413 | static int ti_do_download(struct usb_device *dev, int pipe, |
| 1414 | u8 *buffer, int size) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1415 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1416 | int pos; |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1417 | u8 cs = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1418 | int done; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1419 | struct ti_firmware_header *header; |
Oliver Neukum | 87ea8c8 | 2009-06-30 09:44:24 +0200 | [diff] [blame] | 1420 | int status = 0; |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1421 | int len; |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 1422 | |
| 1423 | for (pos = sizeof(struct ti_firmware_header); pos < size; pos++) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1424 | cs = (__u8)(cs + buffer[pos]); |
| 1425 | |
| 1426 | header = (struct ti_firmware_header *)buffer; |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 1427 | header->wLength = cpu_to_le16((__u16)(size |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1428 | - sizeof(struct ti_firmware_header))); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1429 | header->bCheckSum = cs; |
| 1430 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 1431 | dev_dbg(&dev->dev, "%s - downloading firmware\n", __func__); |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1432 | for (pos = 0; pos < size; pos += done) { |
| 1433 | len = min(size - pos, TI_DOWNLOAD_MAX_PACKET_SIZE); |
| 1434 | status = usb_bulk_msg(dev, pipe, buffer + pos, len, |
| 1435 | &done, 1000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1436 | if (status) |
| 1437 | break; |
| 1438 | } |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1439 | return status; |
| 1440 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1441 | |
Chris Adams | 05a3d90 | 2009-01-11 19:48:53 +0000 | [diff] [blame] | 1442 | static int ti_download_firmware(struct ti_device *tdev) |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1443 | { |
Chris Adams | 05a3d90 | 2009-01-11 19:48:53 +0000 | [diff] [blame] | 1444 | int status; |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1445 | int buffer_size; |
| 1446 | __u8 *buffer; |
| 1447 | struct usb_device *dev = tdev->td_serial->dev; |
| 1448 | unsigned int pipe = usb_sndbulkpipe(dev, |
| 1449 | tdev->td_serial->port[0]->bulk_out_endpointAddress); |
| 1450 | const struct firmware *fw_p; |
| 1451 | char buf[32]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1452 | |
Chris Adams | 05a3d90 | 2009-01-11 19:48:53 +0000 | [diff] [blame] | 1453 | /* try ID specific firmware first, then try generic firmware */ |
Johan Hovold | e877dd2 | 2013-08-11 16:49:23 +0200 | [diff] [blame] | 1454 | sprintf(buf, "ti_usb-v%04x-p%04x.fw", |
| 1455 | le16_to_cpu(dev->descriptor.idVendor), |
| 1456 | le16_to_cpu(dev->descriptor.idProduct)); |
Adhir Ramjiawan | 72b27a0 | 2012-04-09 14:01:38 +0200 | [diff] [blame] | 1457 | status = request_firmware(&fw_p, buf, &dev->dev); |
| 1458 | |
| 1459 | if (status != 0) { |
Chris Adams | cb7a7c6 | 2009-01-11 19:49:00 +0000 | [diff] [blame] | 1460 | buf[0] = '\0'; |
Johan Hovold | e877dd2 | 2013-08-11 16:49:23 +0200 | [diff] [blame] | 1461 | if (le16_to_cpu(dev->descriptor.idVendor) == MTS_VENDOR_ID) { |
| 1462 | switch (le16_to_cpu(dev->descriptor.idProduct)) { |
Chris Adams | cb7a7c6 | 2009-01-11 19:49:00 +0000 | [diff] [blame] | 1463 | case MTS_CDMA_PRODUCT_ID: |
| 1464 | strcpy(buf, "mts_cdma.fw"); |
| 1465 | break; |
| 1466 | case MTS_GSM_PRODUCT_ID: |
| 1467 | strcpy(buf, "mts_gsm.fw"); |
| 1468 | break; |
| 1469 | case MTS_EDGE_PRODUCT_ID: |
| 1470 | strcpy(buf, "mts_edge.fw"); |
| 1471 | break; |
Alex Manoussakis | cdc0483 | 2010-04-22 15:18:20 -0700 | [diff] [blame] | 1472 | case MTS_MT9234MU_PRODUCT_ID: |
| 1473 | strcpy(buf, "mts_mt9234mu.fw"); |
| 1474 | break; |
| 1475 | case MTS_MT9234ZBA_PRODUCT_ID: |
| 1476 | strcpy(buf, "mts_mt9234zba.fw"); |
| 1477 | break; |
| 1478 | case MTS_MT9234ZBAOLD_PRODUCT_ID: |
| 1479 | strcpy(buf, "mts_mt9234zba.fw"); |
| 1480 | break; } |
Chris Adams | cb7a7c6 | 2009-01-11 19:49:00 +0000 | [diff] [blame] | 1481 | } |
| 1482 | if (buf[0] == '\0') { |
| 1483 | if (tdev->td_is_3410) |
| 1484 | strcpy(buf, "ti_3410.fw"); |
| 1485 | else |
| 1486 | strcpy(buf, "ti_5052.fw"); |
| 1487 | } |
Chris Adams | 05a3d90 | 2009-01-11 19:48:53 +0000 | [diff] [blame] | 1488 | status = request_firmware(&fw_p, buf, &dev->dev); |
| 1489 | } |
| 1490 | if (status) { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1491 | dev_err(&dev->dev, "%s - firmware not found\n", __func__); |
| 1492 | return -ENOENT; |
| 1493 | } |
| 1494 | if (fw_p->size > TI_FIRMWARE_BUF_SIZE) { |
Randy Dunlap | 75181f3 | 2010-04-15 11:38:56 -0700 | [diff] [blame] | 1495 | 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] | 1496 | release_firmware(fw_p); |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1497 | return -ENOENT; |
| 1498 | } |
| 1499 | |
| 1500 | buffer_size = TI_FIRMWARE_BUF_SIZE + sizeof(struct ti_firmware_header); |
| 1501 | buffer = kmalloc(buffer_size, GFP_KERNEL); |
| 1502 | if (buffer) { |
| 1503 | memcpy(buffer, fw_p->data, fw_p->size); |
| 1504 | memset(buffer + fw_p->size, 0xff, buffer_size - fw_p->size); |
Chris Adams | 2bcbe4c1 | 2008-09-10 14:11:38 -0700 | [diff] [blame] | 1505 | status = ti_do_download(dev, pipe, buffer, fw_p->size); |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1506 | kfree(buffer); |
Chris Adams | 05a3d90 | 2009-01-11 19:48:53 +0000 | [diff] [blame] | 1507 | } else { |
| 1508 | status = -ENOMEM; |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1509 | } |
| 1510 | release_firmware(fw_p); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1511 | if (status) { |
Alan Cox | a30fa79 | 2008-07-22 11:15:17 +0100 | [diff] [blame] | 1512 | dev_err(&dev->dev, "%s - error downloading firmware, %d\n", |
| 1513 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1514 | return status; |
| 1515 | } |
| 1516 | |
Greg Kroah-Hartman | d53839c | 2012-09-14 15:08:36 -0700 | [diff] [blame] | 1517 | dev_dbg(&dev->dev, "%s - download successful\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1518 | |
| 1519 | return 0; |
| 1520 | } |