Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Edgeport USB Serial Converter driver |
| 3 | * |
| 4 | * Copyright (C) 2000-2002 Inside Out Networks, All rights reserved. |
| 5 | * Copyright (C) 2001-2002 Greg Kroah-Hartman <greg@kroah.com> |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; either version 2 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * |
| 12 | * Supports the following devices: |
| 13 | * EP/1 EP/2 EP/4 EP/21 EP/22 EP/221 EP/42 EP/421 WATCHPORT |
| 14 | * |
| 15 | * For questions or problems with this driver, contact Inside Out |
| 16 | * Networks technical support, or Peter Berger <pberger@brimson.com>, |
| 17 | * or Al Borchers <alborchers@steinerpoint.com>. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 18 | */ |
| 19 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 20 | #include <linux/kernel.h> |
| 21 | #include <linux/jiffies.h> |
| 22 | #include <linux/errno.h> |
| 23 | #include <linux/init.h> |
| 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> |
Matthias Kaehlcke | 241ca64 | 2007-12-04 16:15:40 +0100 | [diff] [blame] | 30 | #include <linux/mutex.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 31 | #include <linux/serial.h> |
Johan Hovold | d733cec | 2010-05-19 00:01:37 +0200 | [diff] [blame] | 32 | #include <linux/kfifo.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 33 | #include <linux/ioctl.h> |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 34 | #include <linux/firmware.h> |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 35 | #include <linux/uaccess.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 36 | #include <linux/usb.h> |
Greg Kroah-Hartman | a969888 | 2006-07-11 21:22:58 -0700 | [diff] [blame] | 37 | #include <linux/usb/serial.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 39 | #include "io_16654.h" |
| 40 | #include "io_usbvend.h" |
| 41 | #include "io_ti.h" |
| 42 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 43 | #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com> and David Iacovelli" |
| 44 | #define DRIVER_DESC "Edgeport USB Serial Driver" |
| 45 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 46 | #define EPROM_PAGE_SIZE 64 |
| 47 | |
| 48 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 49 | /* different hardware types */ |
| 50 | #define HARDWARE_TYPE_930 0 |
| 51 | #define HARDWARE_TYPE_TIUMP 1 |
| 52 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 53 | /* IOCTL_PRIVATE_TI_GET_MODE Definitions */ |
| 54 | #define TI_MODE_CONFIGURING 0 /* Device has not entered start device */ |
| 55 | #define TI_MODE_BOOT 1 /* Staying in boot mode */ |
| 56 | #define TI_MODE_DOWNLOAD 2 /* Made it to download mode */ |
| 57 | #define TI_MODE_TRANSITIONING 3 /* Currently in boot mode but |
| 58 | transitioning to download mode */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 59 | |
| 60 | /* read urb state */ |
| 61 | #define EDGE_READ_URB_RUNNING 0 |
| 62 | #define EDGE_READ_URB_STOPPING 1 |
| 63 | #define EDGE_READ_URB_STOPPED 2 |
| 64 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | #define EDGE_CLOSING_WAIT 4000 /* in .01 sec */ |
| 66 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 67 | |
| 68 | /* Product information read from the Edgeport */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 69 | struct product_info { |
| 70 | int TiMode; /* Current TI Mode */ |
| 71 | __u8 hardware_type; /* Type of hardware */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 72 | } __attribute__((packed)); |
| 73 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 74 | struct edgeport_port { |
| 75 | __u16 uart_base; |
| 76 | __u16 dma_address; |
| 77 | __u8 shadow_msr; |
| 78 | __u8 shadow_mcr; |
| 79 | __u8 shadow_lsr; |
| 80 | __u8 lsr_mask; |
Martin Olsson | 19af5cd | 2009-04-23 11:37:37 +0200 | [diff] [blame] | 81 | __u32 ump_read_timeout; /* Number of milliseconds the UMP will |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 82 | wait without data before completing |
| 83 | a read short */ |
| 84 | int baud_rate; |
| 85 | int close_pending; |
| 86 | int lsr_event; |
Johan Hovold | 48ee580 | 2013-03-21 12:37:10 +0100 | [diff] [blame] | 87 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 88 | struct edgeport_serial *edge_serial; |
| 89 | struct usb_serial_port *port; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 90 | __u8 bUartMode; /* Port type, 0: RS232, etc. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 91 | spinlock_t ep_lock; |
| 92 | int ep_read_urb_state; |
| 93 | int ep_write_urb_in_use; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 94 | }; |
| 95 | |
| 96 | struct edgeport_serial { |
| 97 | struct product_info product_info; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 98 | u8 TI_I2C_Type; /* Type of I2C in UMP */ |
| 99 | u8 TiReadI2C; /* Set to TRUE if we have read the |
| 100 | I2c in Boot Mode */ |
Matthias Kaehlcke | 241ca64 | 2007-12-04 16:15:40 +0100 | [diff] [blame] | 101 | struct mutex es_lock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 102 | int num_ports_open; |
| 103 | struct usb_serial *serial; |
| 104 | }; |
| 105 | |
| 106 | |
| 107 | /* Devices that this driver supports */ |
Németh Márton | 7d40d7e | 2010-01-10 15:34:24 +0100 | [diff] [blame] | 108 | static const struct usb_device_id edgeport_1port_id_table[] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 109 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_1) }, |
| 110 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1) }, |
| 111 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1I) }, |
| 112 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROXIMITY) }, |
| 113 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOTION) }, |
| 114 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOISTURE) }, |
| 115 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_TEMPERATURE) }, |
| 116 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_HUMIDITY) }, |
| 117 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_POWER) }, |
| 118 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_LIGHT) }, |
| 119 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_RADIATION) }, |
| 120 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_DISTANCE) }, |
| 121 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_ACCELERATION) }, |
| 122 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROX_DIST) }, |
| 123 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_HP4CD) }, |
| 124 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_PCI) }, |
| 125 | { } |
| 126 | }; |
| 127 | |
Németh Márton | 7d40d7e | 2010-01-10 15:34:24 +0100 | [diff] [blame] | 128 | static const struct usb_device_id edgeport_2port_id_table[] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 129 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2) }, |
| 130 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2C) }, |
| 131 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2I) }, |
| 132 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_421) }, |
| 133 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21) }, |
| 134 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_42) }, |
| 135 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4) }, |
| 136 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4I) }, |
| 137 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22I) }, |
| 138 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_221C) }, |
| 139 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22C) }, |
| 140 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21C) }, |
Martin K. Petersen | fc4cbd7 | 2007-05-22 15:57:04 -0400 | [diff] [blame] | 141 | /* The 4, 8 and 16 port devices show up as multiple 2 port devices */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 142 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4S) }, |
Martin K. Petersen | fc4cbd7 | 2007-05-22 15:57:04 -0400 | [diff] [blame] | 143 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8) }, |
| 144 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8S) }, |
| 145 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416) }, |
| 146 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416B) }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 147 | { } |
| 148 | }; |
| 149 | |
| 150 | /* Devices that this driver supports */ |
Németh Márton | 7d40d7e | 2010-01-10 15:34:24 +0100 | [diff] [blame] | 151 | static const struct usb_device_id id_table_combined[] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 152 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_1) }, |
| 153 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1) }, |
| 154 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1I) }, |
| 155 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROXIMITY) }, |
| 156 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOTION) }, |
| 157 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOISTURE) }, |
| 158 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_TEMPERATURE) }, |
| 159 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_HUMIDITY) }, |
| 160 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_POWER) }, |
| 161 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_LIGHT) }, |
| 162 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_RADIATION) }, |
| 163 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_DISTANCE) }, |
| 164 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_ACCELERATION) }, |
| 165 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROX_DIST) }, |
| 166 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_HP4CD) }, |
| 167 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_PCI) }, |
| 168 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2) }, |
| 169 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2C) }, |
| 170 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2I) }, |
| 171 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_421) }, |
| 172 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21) }, |
| 173 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_42) }, |
| 174 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4) }, |
| 175 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4I) }, |
| 176 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22I) }, |
| 177 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_221C) }, |
| 178 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22C) }, |
| 179 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21C) }, |
| 180 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4S) }, |
Martin K. Petersen | fc4cbd7 | 2007-05-22 15:57:04 -0400 | [diff] [blame] | 181 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8) }, |
| 182 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8S) }, |
| 183 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416) }, |
| 184 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416B) }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 185 | { } |
| 186 | }; |
| 187 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 188 | MODULE_DEVICE_TABLE(usb, id_table_combined); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 189 | |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 190 | static unsigned char OperationalMajorVersion; |
| 191 | static unsigned char OperationalMinorVersion; |
| 192 | static unsigned short OperationalBuildNumber; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 193 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 194 | static int closing_wait = EDGE_CLOSING_WAIT; |
Rusty Russell | 90ab5ee | 2012-01-13 09:32:20 +1030 | [diff] [blame] | 195 | static bool ignore_cpu_rev; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 196 | static int default_uart_mode; /* RS232 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 197 | |
Jiri Slaby | 2e124b4 | 2013-01-03 15:53:06 +0100 | [diff] [blame] | 198 | static void edge_tty_recv(struct usb_serial_port *port, unsigned char *data, |
| 199 | int length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | |
| 201 | static void stop_read(struct edgeport_port *edge_port); |
| 202 | static int restart_read(struct edgeport_port *edge_port); |
| 203 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 204 | static void edge_set_termios(struct tty_struct *tty, |
| 205 | struct usb_serial_port *port, struct ktermios *old_termios); |
Jiri Slaby | ae3759c | 2013-04-04 22:41:01 +0200 | [diff] [blame] | 206 | static void edge_send(struct usb_serial_port *port, struct tty_struct *tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 207 | |
Martin K. Petersen | fc4cbd7 | 2007-05-22 15:57:04 -0400 | [diff] [blame] | 208 | /* sysfs attributes */ |
| 209 | static int edge_create_sysfs_attrs(struct usb_serial_port *port); |
| 210 | static int edge_remove_sysfs_attrs(struct usb_serial_port *port); |
| 211 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 212 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 213 | static int ti_vread_sync(struct usb_device *dev, __u8 request, |
| 214 | __u16 value, __u16 index, u8 *data, int size) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 215 | { |
| 216 | int status; |
| 217 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 218 | status = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), request, |
| 219 | (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN), |
| 220 | value, index, data, size, 1000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 221 | if (status < 0) |
| 222 | return status; |
| 223 | if (status != size) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 224 | dev_dbg(&dev->dev, "%s - wanted to write %d, but only wrote %d\n", |
| 225 | __func__, size, status); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 226 | return -ECOMM; |
| 227 | } |
| 228 | return 0; |
| 229 | } |
| 230 | |
| 231 | static int ti_vsend_sync(struct usb_device *dev, __u8 request, |
| 232 | __u16 value, __u16 index, u8 *data, int size) |
| 233 | { |
| 234 | int status; |
| 235 | |
| 236 | status = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), request, |
| 237 | (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT), |
| 238 | value, index, data, size, 1000); |
| 239 | if (status < 0) |
| 240 | return status; |
| 241 | if (status != size) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 242 | dev_dbg(&dev->dev, "%s - wanted to write %d, but only wrote %d\n", |
| 243 | __func__, size, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 244 | return -ECOMM; |
| 245 | } |
| 246 | return 0; |
| 247 | } |
| 248 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 249 | static int send_cmd(struct usb_device *dev, __u8 command, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 250 | __u8 moduleid, __u16 value, u8 *data, |
| 251 | int size) |
| 252 | { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 253 | return ti_vsend_sync(dev, command, value, moduleid, data, size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 254 | } |
| 255 | |
| 256 | /* clear tx/rx buffers and fifo in TI UMP */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 257 | static int purge_port(struct usb_serial_port *port, __u16 mask) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 258 | { |
Greg Kroah-Hartman | 1143832 | 2013-06-06 10:32:00 -0700 | [diff] [blame] | 259 | int port_number = port->port_number; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 260 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 261 | dev_dbg(&port->dev, "%s - port %d, mask %x\n", __func__, port_number, mask); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 262 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 263 | return send_cmd(port->serial->dev, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 264 | UMPC_PURGE_PORT, |
| 265 | (__u8)(UMPM_UART1_PORT + port_number), |
| 266 | mask, |
| 267 | NULL, |
| 268 | 0); |
| 269 | } |
| 270 | |
| 271 | /** |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 272 | * read_download_mem - Read edgeport memory from TI chip |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 273 | * @dev: usb device pointer |
| 274 | * @start_address: Device CPU address at which to read |
| 275 | * @length: Length of above data |
| 276 | * @address_type: Can read both XDATA and I2C |
| 277 | * @buffer: pointer to input data buffer |
| 278 | */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 279 | static int read_download_mem(struct usb_device *dev, int start_address, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 280 | int length, __u8 address_type, __u8 *buffer) |
| 281 | { |
| 282 | int status = 0; |
| 283 | __u8 read_length; |
| 284 | __be16 be_start_address; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 285 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 286 | dev_dbg(&dev->dev, "%s - @ %x for %d\n", __func__, start_address, length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 287 | |
| 288 | /* Read in blocks of 64 bytes |
| 289 | * (TI firmware can't handle more than 64 byte reads) |
| 290 | */ |
| 291 | while (length) { |
| 292 | if (length > 64) |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 293 | read_length = 64; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 294 | else |
| 295 | read_length = (__u8)length; |
| 296 | |
| 297 | if (read_length > 1) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 298 | dev_dbg(&dev->dev, "%s - @ %x for %d\n", __func__, start_address, read_length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 299 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 300 | be_start_address = cpu_to_be16(start_address); |
| 301 | status = ti_vread_sync(dev, UMPC_MEMORY_READ, |
| 302 | (__u16)address_type, |
| 303 | (__force __u16)be_start_address, |
| 304 | buffer, read_length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 305 | |
| 306 | if (status) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 307 | dev_dbg(&dev->dev, "%s - ERROR %x\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 308 | return status; |
| 309 | } |
| 310 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 311 | if (read_length > 1) |
Greg Kroah-Hartman | 59d33f2 | 2012-09-18 09:58:57 +0100 | [diff] [blame] | 312 | usb_serial_debug_data(&dev->dev, __func__, read_length, buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 313 | |
| 314 | /* Update pointers/length */ |
| 315 | start_address += read_length; |
| 316 | buffer += read_length; |
| 317 | length -= read_length; |
| 318 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 319 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 320 | return status; |
| 321 | } |
| 322 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 323 | static int read_ram(struct usb_device *dev, int start_address, |
| 324 | int length, __u8 *buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 325 | { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 326 | return read_download_mem(dev, start_address, length, |
| 327 | DTK_ADDR_SPACE_XDATA, buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 328 | } |
| 329 | |
| 330 | /* Read edgeport memory to a given block */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 331 | static int read_boot_mem(struct edgeport_serial *serial, |
| 332 | int start_address, int length, __u8 *buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 333 | { |
| 334 | int status = 0; |
| 335 | int i; |
| 336 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 337 | for (i = 0; i < length; i++) { |
| 338 | status = ti_vread_sync(serial->serial->dev, |
| 339 | UMPC_MEMORY_READ, serial->TI_I2C_Type, |
| 340 | (__u16)(start_address+i), &buffer[i], 0x01); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 341 | if (status) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 342 | dev_dbg(&serial->serial->dev->dev, "%s - ERROR %x\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 343 | return status; |
| 344 | } |
| 345 | } |
| 346 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 347 | dev_dbg(&serial->serial->dev->dev, "%s - start_address = %x, length = %d\n", |
| 348 | __func__, start_address, length); |
Greg Kroah-Hartman | 59d33f2 | 2012-09-18 09:58:57 +0100 | [diff] [blame] | 349 | usb_serial_debug_data(&serial->serial->dev->dev, __func__, length, buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 350 | |
| 351 | serial->TiReadI2C = 1; |
| 352 | |
| 353 | return status; |
| 354 | } |
| 355 | |
| 356 | /* Write given block to TI EPROM memory */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 357 | static int write_boot_mem(struct edgeport_serial *serial, |
| 358 | int start_address, int length, __u8 *buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 359 | { |
| 360 | int status = 0; |
| 361 | int i; |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 362 | u8 *temp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 363 | |
| 364 | /* Must do a read before write */ |
| 365 | if (!serial->TiReadI2C) { |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 366 | temp = kmalloc(1, GFP_KERNEL); |
| 367 | if (!temp) { |
| 368 | dev_err(&serial->serial->dev->dev, |
| 369 | "%s - out of memory\n", __func__); |
| 370 | return -ENOMEM; |
| 371 | } |
| 372 | status = read_boot_mem(serial, 0, 1, temp); |
| 373 | kfree(temp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 374 | if (status) |
| 375 | return status; |
| 376 | } |
| 377 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 378 | for (i = 0; i < length; ++i) { |
| 379 | status = ti_vsend_sync(serial->serial->dev, |
| 380 | UMPC_MEMORY_WRITE, buffer[i], |
| 381 | (__u16)(i + start_address), NULL, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 382 | if (status) |
| 383 | return status; |
| 384 | } |
| 385 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 386 | dev_dbg(&serial->serial->dev->dev, "%s - start_sddr = %x, length = %d\n", __func__, start_address, length); |
Greg Kroah-Hartman | 59d33f2 | 2012-09-18 09:58:57 +0100 | [diff] [blame] | 387 | usb_serial_debug_data(&serial->serial->dev->dev, __func__, length, buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 388 | |
| 389 | return status; |
| 390 | } |
| 391 | |
| 392 | |
| 393 | /* Write edgeport I2C memory to TI chip */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 394 | static int write_i2c_mem(struct edgeport_serial *serial, |
| 395 | int start_address, int length, __u8 address_type, __u8 *buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 396 | { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 397 | struct device *dev = &serial->serial->dev->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 398 | int status = 0; |
| 399 | int write_length; |
| 400 | __be16 be_start_address; |
| 401 | |
| 402 | /* We can only send a maximum of 1 aligned byte page at a time */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 403 | |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 404 | /* calculate the number of bytes left in the first page */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 405 | write_length = EPROM_PAGE_SIZE - |
| 406 | (start_address & (EPROM_PAGE_SIZE - 1)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 407 | |
| 408 | if (write_length > length) |
| 409 | write_length = length; |
| 410 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 411 | dev_dbg(dev, "%s - BytesInFirstPage Addr = %x, length = %d\n", |
| 412 | __func__, start_address, write_length); |
Greg Kroah-Hartman | 59d33f2 | 2012-09-18 09:58:57 +0100 | [diff] [blame] | 413 | usb_serial_debug_data(dev, __func__, write_length, buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 414 | |
| 415 | /* Write first page */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 416 | be_start_address = cpu_to_be16(start_address); |
| 417 | status = ti_vsend_sync(serial->serial->dev, |
| 418 | UMPC_MEMORY_WRITE, (__u16)address_type, |
| 419 | (__force __u16)be_start_address, |
| 420 | buffer, write_length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 421 | if (status) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 422 | dev_dbg(dev, "%s - ERROR %d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 423 | return status; |
| 424 | } |
| 425 | |
| 426 | length -= write_length; |
| 427 | start_address += write_length; |
| 428 | buffer += write_length; |
| 429 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 430 | /* We should be aligned now -- can write |
| 431 | max page size bytes at a time */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 432 | while (length) { |
| 433 | if (length > EPROM_PAGE_SIZE) |
| 434 | write_length = EPROM_PAGE_SIZE; |
| 435 | else |
| 436 | write_length = length; |
| 437 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 438 | dev_dbg(dev, "%s - Page Write Addr = %x, length = %d\n", |
| 439 | __func__, start_address, write_length); |
Greg Kroah-Hartman | 59d33f2 | 2012-09-18 09:58:57 +0100 | [diff] [blame] | 440 | usb_serial_debug_data(dev, __func__, write_length, buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 441 | |
| 442 | /* Write next page */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 443 | be_start_address = cpu_to_be16(start_address); |
| 444 | status = ti_vsend_sync(serial->serial->dev, UMPC_MEMORY_WRITE, |
| 445 | (__u16)address_type, |
| 446 | (__force __u16)be_start_address, |
| 447 | buffer, write_length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 448 | if (status) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 449 | dev_err(dev, "%s - ERROR %d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 450 | return status; |
| 451 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 452 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 453 | length -= write_length; |
| 454 | start_address += write_length; |
| 455 | buffer += write_length; |
| 456 | } |
| 457 | return status; |
| 458 | } |
| 459 | |
| 460 | /* Examine the UMP DMA registers and LSR |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 461 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 462 | * Check the MSBit of the X and Y DMA byte count registers. |
| 463 | * A zero in this bit indicates that the TX DMA buffers are empty |
| 464 | * then check the TX Empty bit in the UART. |
| 465 | */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 466 | static int tx_active(struct edgeport_port *port) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 467 | { |
| 468 | int status; |
| 469 | struct out_endpoint_desc_block *oedb; |
| 470 | __u8 *lsr; |
| 471 | int bytes_left = 0; |
| 472 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 473 | oedb = kmalloc(sizeof(*oedb), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 474 | if (!oedb) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 475 | dev_err(&port->port->dev, "%s - out of memory\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 476 | return -ENOMEM; |
| 477 | } |
| 478 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 479 | lsr = kmalloc(1, GFP_KERNEL); /* Sigh, that's right, just one byte, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 480 | as not all platforms can do DMA |
| 481 | from stack */ |
| 482 | if (!lsr) { |
| 483 | kfree(oedb); |
| 484 | return -ENOMEM; |
| 485 | } |
| 486 | /* Read the DMA Count Registers */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 487 | status = read_ram(port->port->serial->dev, port->dma_address, |
| 488 | sizeof(*oedb), (void *)oedb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 489 | if (status) |
| 490 | goto exit_is_tx_active; |
| 491 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 492 | dev_dbg(&port->port->dev, "%s - XByteCount 0x%X\n", __func__, oedb->XByteCount); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 493 | |
| 494 | /* and the LSR */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 495 | status = read_ram(port->port->serial->dev, |
| 496 | port->uart_base + UMPMEM_OFFS_UART_LSR, 1, lsr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 497 | |
| 498 | if (status) |
| 499 | goto exit_is_tx_active; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 500 | dev_dbg(&port->port->dev, "%s - LSR = 0x%X\n", __func__, *lsr); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 501 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 502 | /* If either buffer has data or we are transmitting then return TRUE */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 503 | if ((oedb->XByteCount & 0x80) != 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 504 | bytes_left += 64; |
| 505 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 506 | if ((*lsr & UMP_UART_LSR_TX_MASK) == 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 507 | bytes_left += 1; |
| 508 | |
| 509 | /* We return Not Active if we get any kind of error */ |
| 510 | exit_is_tx_active: |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 511 | dev_dbg(&port->port->dev, "%s - return %d\n", __func__, bytes_left); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 512 | |
| 513 | kfree(lsr); |
| 514 | kfree(oedb); |
| 515 | return bytes_left; |
| 516 | } |
| 517 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 518 | static int choose_config(struct usb_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 519 | { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 520 | /* |
| 521 | * There may be multiple configurations on this device, in which case |
| 522 | * we would need to read and parse all of them to find out which one |
| 523 | * we want. However, we just support one config at this point, |
| 524 | * configuration # 1, which is Config Descriptor 0. |
| 525 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 526 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 527 | dev_dbg(&dev->dev, "%s - Number of Interfaces = %d\n", |
| 528 | __func__, dev->config->desc.bNumInterfaces); |
| 529 | dev_dbg(&dev->dev, "%s - MAX Power = %d\n", |
| 530 | __func__, dev->config->desc.bMaxPower * 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 531 | |
| 532 | if (dev->config->desc.bNumInterfaces != 1) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 533 | dev_err(&dev->dev, "%s - bNumInterfaces is not 1, ERROR!\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 534 | return -ENODEV; |
| 535 | } |
| 536 | |
| 537 | return 0; |
| 538 | } |
| 539 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 540 | static int read_rom(struct edgeport_serial *serial, |
| 541 | int start_address, int length, __u8 *buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 542 | { |
| 543 | int status; |
| 544 | |
| 545 | if (serial->product_info.TiMode == TI_MODE_DOWNLOAD) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 546 | status = read_download_mem(serial->serial->dev, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 547 | start_address, |
| 548 | length, |
| 549 | serial->TI_I2C_Type, |
| 550 | buffer); |
| 551 | } else { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 552 | status = read_boot_mem(serial, start_address, length, |
| 553 | buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 554 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 555 | return status; |
| 556 | } |
| 557 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 558 | static int write_rom(struct edgeport_serial *serial, int start_address, |
| 559 | int length, __u8 *buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 560 | { |
| 561 | if (serial->product_info.TiMode == TI_MODE_BOOT) |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 562 | return write_boot_mem(serial, start_address, length, |
| 563 | buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 564 | |
| 565 | if (serial->product_info.TiMode == TI_MODE_DOWNLOAD) |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 566 | return write_i2c_mem(serial, start_address, length, |
| 567 | serial->TI_I2C_Type, buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 568 | return -EINVAL; |
| 569 | } |
| 570 | |
| 571 | |
| 572 | |
| 573 | /* Read a descriptor header from I2C based on type */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 574 | static int get_descriptor_addr(struct edgeport_serial *serial, |
| 575 | int desc_type, struct ti_i2c_desc *rom_desc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 576 | { |
| 577 | int start_address; |
| 578 | int status; |
| 579 | |
| 580 | /* Search for requested descriptor in I2C */ |
| 581 | start_address = 2; |
| 582 | do { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 583 | status = read_rom(serial, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 584 | start_address, |
| 585 | sizeof(struct ti_i2c_desc), |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 586 | (__u8 *)rom_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 587 | if (status) |
| 588 | return 0; |
| 589 | |
| 590 | if (rom_desc->Type == desc_type) |
| 591 | return start_address; |
| 592 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 593 | start_address = start_address + sizeof(struct ti_i2c_desc) |
| 594 | + rom_desc->Size; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 595 | |
| 596 | } while ((start_address < TI_MAX_I2C_SIZE) && rom_desc->Type); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 597 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 598 | return 0; |
| 599 | } |
| 600 | |
| 601 | /* Validate descriptor checksum */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 602 | static int valid_csum(struct ti_i2c_desc *rom_desc, __u8 *buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 603 | { |
| 604 | __u16 i; |
| 605 | __u8 cs = 0; |
| 606 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 607 | for (i = 0; i < rom_desc->Size; i++) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 608 | cs = (__u8)(cs + buffer[i]); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 609 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 610 | if (cs != rom_desc->CheckSum) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 611 | pr_debug("%s - Mismatch %x - %x", __func__, rom_desc->CheckSum, cs); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 612 | return -EINVAL; |
| 613 | } |
| 614 | return 0; |
| 615 | } |
| 616 | |
| 617 | /* Make sure that the I2C image is good */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 618 | static int check_i2c_image(struct edgeport_serial *serial) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 619 | { |
| 620 | struct device *dev = &serial->serial->dev->dev; |
| 621 | int status = 0; |
| 622 | struct ti_i2c_desc *rom_desc; |
| 623 | int start_address = 2; |
| 624 | __u8 *buffer; |
| 625 | __u16 ttype; |
| 626 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 627 | rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 628 | if (!rom_desc) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 629 | dev_err(dev, "%s - out of memory\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 630 | return -ENOMEM; |
| 631 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 632 | buffer = kmalloc(TI_MAX_I2C_SIZE, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 633 | if (!buffer) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 634 | dev_err(dev, "%s - out of memory when allocating buffer\n", |
| 635 | __func__); |
| 636 | kfree(rom_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 637 | return -ENOMEM; |
| 638 | } |
| 639 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 640 | /* Read the first byte (Signature0) must be 0x52 or 0x10 */ |
| 641 | status = read_rom(serial, 0, 1, buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 642 | if (status) |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 643 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 644 | |
| 645 | if (*buffer != UMP5152 && *buffer != UMP3410) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 646 | dev_err(dev, "%s - invalid buffer signature\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 647 | status = -ENODEV; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 648 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 649 | } |
| 650 | |
| 651 | do { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 652 | /* Validate the I2C */ |
| 653 | status = read_rom(serial, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 654 | start_address, |
| 655 | sizeof(struct ti_i2c_desc), |
| 656 | (__u8 *)rom_desc); |
| 657 | if (status) |
| 658 | break; |
| 659 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 660 | if ((start_address + sizeof(struct ti_i2c_desc) + |
| 661 | rom_desc->Size) > TI_MAX_I2C_SIZE) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 662 | status = -ENODEV; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 663 | dev_dbg(dev, "%s - structure too big, erroring out.\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 664 | break; |
| 665 | } |
| 666 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 667 | dev_dbg(dev, "%s Type = 0x%x\n", __func__, rom_desc->Type); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 668 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 669 | /* Skip type 2 record */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 670 | ttype = rom_desc->Type & 0x0f; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 671 | if (ttype != I2C_DESC_TYPE_FIRMWARE_BASIC |
| 672 | && ttype != I2C_DESC_TYPE_FIRMWARE_AUTO) { |
| 673 | /* Read the descriptor data */ |
| 674 | status = read_rom(serial, start_address + |
| 675 | sizeof(struct ti_i2c_desc), |
| 676 | rom_desc->Size, buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 677 | if (status) |
| 678 | break; |
| 679 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 680 | status = valid_csum(rom_desc, buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 681 | if (status) |
| 682 | break; |
| 683 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 684 | start_address = start_address + sizeof(struct ti_i2c_desc) + |
| 685 | rom_desc->Size; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 686 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 687 | } while ((rom_desc->Type != I2C_DESC_TYPE_ION) && |
| 688 | (start_address < TI_MAX_I2C_SIZE)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 689 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 690 | if ((rom_desc->Type != I2C_DESC_TYPE_ION) || |
| 691 | (start_address > TI_MAX_I2C_SIZE)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 692 | status = -ENODEV; |
| 693 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 694 | out: |
| 695 | kfree(buffer); |
| 696 | kfree(rom_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 697 | return status; |
| 698 | } |
| 699 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 700 | static int get_manuf_info(struct edgeport_serial *serial, __u8 *buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 701 | { |
| 702 | int status; |
| 703 | int start_address; |
| 704 | struct ti_i2c_desc *rom_desc; |
| 705 | struct edge_ti_manuf_descriptor *desc; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 706 | struct device *dev = &serial->serial->dev->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 707 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 708 | rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 709 | if (!rom_desc) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 710 | dev_err(dev, "%s - out of memory\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 711 | return -ENOMEM; |
| 712 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 713 | start_address = get_descriptor_addr(serial, I2C_DESC_TYPE_ION, |
| 714 | rom_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 715 | |
| 716 | if (!start_address) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 717 | dev_dbg(dev, "%s - Edge Descriptor not found in I2C\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 718 | status = -ENODEV; |
| 719 | goto exit; |
| 720 | } |
| 721 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 722 | /* Read the descriptor data */ |
| 723 | status = read_rom(serial, start_address+sizeof(struct ti_i2c_desc), |
| 724 | rom_desc->Size, buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 725 | if (status) |
| 726 | goto exit; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 727 | |
| 728 | status = valid_csum(rom_desc, buffer); |
| 729 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 730 | desc = (struct edge_ti_manuf_descriptor *)buffer; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 731 | dev_dbg(dev, "%s - IonConfig 0x%x\n", __func__, desc->IonConfig); |
| 732 | dev_dbg(dev, "%s - Version %d\n", __func__, desc->Version); |
| 733 | dev_dbg(dev, "%s - Cpu/Board 0x%x\n", __func__, desc->CpuRev_BoardRev); |
| 734 | dev_dbg(dev, "%s - NumPorts %d\n", __func__, desc->NumPorts); |
| 735 | dev_dbg(dev, "%s - NumVirtualPorts %d\n", __func__, desc->NumVirtualPorts); |
| 736 | dev_dbg(dev, "%s - TotalPorts %d\n", __func__, desc->TotalPorts); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 737 | |
| 738 | exit: |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 739 | kfree(rom_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 740 | return status; |
| 741 | } |
| 742 | |
| 743 | /* Build firmware header used for firmware update */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 744 | static int build_i2c_fw_hdr(__u8 *header, struct device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 745 | { |
| 746 | __u8 *buffer; |
| 747 | int buffer_size; |
| 748 | int i; |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 749 | int err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 750 | __u8 cs = 0; |
| 751 | struct ti_i2c_desc *i2c_header; |
| 752 | struct ti_i2c_image_header *img_header; |
| 753 | struct ti_i2c_firmware_rec *firmware_rec; |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 754 | const struct firmware *fw; |
| 755 | const char *fw_name = "edgeport/down3.bin"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 756 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 757 | /* In order to update the I2C firmware we must change the type 2 record |
| 758 | * to type 0xF2. This will force the UMP to come up in Boot Mode. |
| 759 | * Then while in boot mode, the driver will download the latest |
| 760 | * firmware (padded to 15.5k) into the UMP ram. And finally when the |
| 761 | * device comes back up in download mode the driver will cause the new |
| 762 | * firmware to be copied from the UMP Ram to I2C and the firmware will |
| 763 | * update the record type from 0xf2 to 0x02. |
| 764 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 765 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 766 | /* Allocate a 15.5k buffer + 2 bytes for version number |
| 767 | * (Firmware Record) */ |
| 768 | buffer_size = (((1024 * 16) - 512 ) + |
| 769 | sizeof(struct ti_i2c_firmware_rec)); |
| 770 | |
| 771 | buffer = kmalloc(buffer_size, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 772 | if (!buffer) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 773 | dev_err(dev, "%s - out of memory\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 774 | return -ENOMEM; |
| 775 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 776 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 777 | // Set entire image of 0xffs |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 778 | memset(buffer, 0xff, buffer_size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 779 | |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 780 | err = request_firmware(&fw, fw_name, dev); |
| 781 | if (err) { |
Greg Kroah-Hartman | d9bb03d | 2012-09-18 16:59:23 +0100 | [diff] [blame] | 782 | dev_err(dev, "Failed to load image \"%s\" err %d\n", |
| 783 | fw_name, err); |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 784 | kfree(buffer); |
| 785 | return err; |
| 786 | } |
| 787 | |
| 788 | /* Save Download Version Number */ |
| 789 | OperationalMajorVersion = fw->data[0]; |
| 790 | OperationalMinorVersion = fw->data[1]; |
| 791 | OperationalBuildNumber = fw->data[2] | (fw->data[3] << 8); |
| 792 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 793 | /* Copy version number into firmware record */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 794 | firmware_rec = (struct ti_i2c_firmware_rec *)buffer; |
| 795 | |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 796 | firmware_rec->Ver_Major = OperationalMajorVersion; |
| 797 | firmware_rec->Ver_Minor = OperationalMinorVersion; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 798 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 799 | /* Pointer to fw_down memory image */ |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 800 | img_header = (struct ti_i2c_image_header *)&fw->data[4]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 801 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 802 | memcpy(buffer + sizeof(struct ti_i2c_firmware_rec), |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 803 | &fw->data[4 + sizeof(struct ti_i2c_image_header)], |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 804 | le16_to_cpu(img_header->Length)); |
| 805 | |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 806 | release_firmware(fw); |
| 807 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 808 | for (i=0; i < buffer_size; i++) { |
| 809 | cs = (__u8)(cs + buffer[i]); |
| 810 | } |
| 811 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 812 | kfree(buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 813 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 814 | /* Build new header */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 815 | i2c_header = (struct ti_i2c_desc *)header; |
| 816 | firmware_rec = (struct ti_i2c_firmware_rec*)i2c_header->Data; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 817 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 818 | i2c_header->Type = I2C_DESC_TYPE_FIRMWARE_BLANK; |
| 819 | i2c_header->Size = (__u16)buffer_size; |
| 820 | i2c_header->CheckSum = cs; |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 821 | firmware_rec->Ver_Major = OperationalMajorVersion; |
| 822 | firmware_rec->Ver_Minor = OperationalMinorVersion; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 823 | |
| 824 | return 0; |
| 825 | } |
| 826 | |
| 827 | /* Try to figure out what type of I2c we have */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 828 | static int i2c_type_bootmode(struct edgeport_serial *serial) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 829 | { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 830 | struct device *dev = &serial->serial->dev->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 831 | int status; |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 832 | u8 *data; |
| 833 | |
| 834 | data = kmalloc(1, GFP_KERNEL); |
| 835 | if (!data) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 836 | dev_err(dev, "%s - out of memory\n", __func__); |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 837 | return -ENOMEM; |
| 838 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 839 | |
| 840 | /* Try to read type 2 */ |
| 841 | status = ti_vread_sync(serial->serial->dev, UMPC_MEMORY_READ, |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 842 | DTK_ADDR_SPACE_I2C_TYPE_II, 0, data, 0x01); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 843 | if (status) |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 844 | dev_dbg(dev, "%s - read 2 status error = %d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 845 | else |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 846 | dev_dbg(dev, "%s - read 2 data = 0x%x\n", __func__, *data); |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 847 | if ((!status) && (*data == UMP5152 || *data == UMP3410)) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 848 | dev_dbg(dev, "%s - ROM_TYPE_II\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 849 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 850 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 851 | } |
| 852 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 853 | /* Try to read type 3 */ |
| 854 | status = ti_vread_sync(serial->serial->dev, UMPC_MEMORY_READ, |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 855 | DTK_ADDR_SPACE_I2C_TYPE_III, 0, data, 0x01); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 856 | if (status) |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 857 | dev_dbg(dev, "%s - read 3 status error = %d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 858 | else |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 859 | dev_dbg(dev, "%s - read 2 data = 0x%x\n", __func__, *data); |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 860 | if ((!status) && (*data == UMP5152 || *data == UMP3410)) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 861 | dev_dbg(dev, "%s - ROM_TYPE_III\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 862 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_III; |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 863 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 864 | } |
| 865 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 866 | dev_dbg(dev, "%s - Unknown\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 867 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 868 | status = -ENODEV; |
| 869 | out: |
| 870 | kfree(data); |
| 871 | return status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 872 | } |
| 873 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 874 | static int bulk_xfer(struct usb_serial *serial, void *buffer, |
| 875 | int length, int *num_sent) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 876 | { |
| 877 | int status; |
| 878 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 879 | status = usb_bulk_msg(serial->dev, |
| 880 | usb_sndbulkpipe(serial->dev, |
| 881 | serial->port[0]->bulk_out_endpointAddress), |
| 882 | buffer, length, num_sent, 1000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 883 | return status; |
| 884 | } |
| 885 | |
| 886 | /* Download given firmware image to the device (IN BOOT MODE) */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 887 | static int download_code(struct edgeport_serial *serial, __u8 *image, |
| 888 | int image_length) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 889 | { |
| 890 | int status = 0; |
| 891 | int pos; |
| 892 | int transfer; |
| 893 | int done; |
| 894 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 895 | /* Transfer firmware image */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 896 | for (pos = 0; pos < image_length; ) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 897 | /* Read the next buffer from file */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 898 | transfer = image_length - pos; |
| 899 | if (transfer > EDGE_FW_BULK_MAX_PACKET_SIZE) |
| 900 | transfer = EDGE_FW_BULK_MAX_PACKET_SIZE; |
| 901 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 902 | /* Transfer data */ |
| 903 | status = bulk_xfer(serial->serial, &image[pos], |
| 904 | transfer, &done); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 905 | if (status) |
| 906 | break; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 907 | /* Advance buffer pointer */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 908 | pos += done; |
| 909 | } |
| 910 | |
| 911 | return status; |
| 912 | } |
| 913 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 914 | /* FIXME!!! */ |
| 915 | static int config_boot_dev(struct usb_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 916 | { |
| 917 | return 0; |
| 918 | } |
| 919 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 920 | static int ti_cpu_rev(struct edge_ti_manuf_descriptor *desc) |
| 921 | { |
| 922 | return TI_GET_CPU_REVISION(desc->CpuRev_BoardRev); |
| 923 | } |
| 924 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 925 | /** |
| 926 | * DownloadTIFirmware - Download run-time operating firmware to the TI5052 |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 927 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 928 | * This routine downloads the main operating code into the TI5052, using the |
| 929 | * boot code already burned into E2PROM or ROM. |
| 930 | */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 931 | static int download_fw(struct edgeport_serial *serial) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 932 | { |
| 933 | struct device *dev = &serial->serial->dev->dev; |
| 934 | int status = 0; |
| 935 | int start_address; |
| 936 | struct edge_ti_manuf_descriptor *ti_manuf_desc; |
| 937 | struct usb_interface_descriptor *interface; |
| 938 | int download_cur_ver; |
| 939 | int download_new_ver; |
| 940 | |
| 941 | /* This routine is entered by both the BOOT mode and the Download mode |
| 942 | * We can determine which code is running by the reading the config |
| 943 | * descriptor and if we have only one bulk pipe it is in boot mode |
| 944 | */ |
| 945 | serial->product_info.hardware_type = HARDWARE_TYPE_TIUMP; |
| 946 | |
| 947 | /* Default to type 2 i2c */ |
| 948 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; |
| 949 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 950 | status = choose_config(serial->serial->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 951 | if (status) |
| 952 | return status; |
| 953 | |
| 954 | interface = &serial->serial->interface->cur_altsetting->desc; |
| 955 | if (!interface) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 956 | dev_err(dev, "%s - no interface set, error!\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 957 | return -ENODEV; |
| 958 | } |
| 959 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 960 | /* |
| 961 | * Setup initial mode -- the default mode 0 is TI_MODE_CONFIGURING |
| 962 | * if we have more than one endpoint we are definitely in download |
| 963 | * mode |
| 964 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 965 | if (interface->bNumEndpoints > 1) |
| 966 | serial->product_info.TiMode = TI_MODE_DOWNLOAD; |
| 967 | else |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 968 | /* Otherwise we will remain in configuring mode */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 969 | serial->product_info.TiMode = TI_MODE_CONFIGURING; |
| 970 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 971 | /********************************************************************/ |
| 972 | /* Download Mode */ |
| 973 | /********************************************************************/ |
| 974 | if (serial->product_info.TiMode == TI_MODE_DOWNLOAD) { |
| 975 | struct ti_i2c_desc *rom_desc; |
| 976 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 977 | dev_dbg(dev, "%s - RUNNING IN DOWNLOAD MODE\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 978 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 979 | status = check_i2c_image(serial); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 980 | if (status) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 981 | dev_dbg(dev, "%s - DOWNLOAD MODE -- BAD I2C\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 982 | return status; |
| 983 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 984 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 985 | /* Validate Hardware version number |
| 986 | * Read Manufacturing Descriptor from TI Based Edgeport |
| 987 | */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 988 | ti_manuf_desc = kmalloc(sizeof(*ti_manuf_desc), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 989 | if (!ti_manuf_desc) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 990 | dev_err(dev, "%s - out of memory.\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 991 | return -ENOMEM; |
| 992 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 993 | status = get_manuf_info(serial, (__u8 *)ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 994 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 995 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 996 | return status; |
| 997 | } |
| 998 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 999 | /* Check version number of ION descriptor */ |
| 1000 | if (!ignore_cpu_rev && ti_cpu_rev(ti_manuf_desc) < 2) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1001 | dev_dbg(dev, "%s - Wrong CPU Rev %d (Must be 2)\n", |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1002 | __func__, ti_cpu_rev(ti_manuf_desc)); |
| 1003 | kfree(ti_manuf_desc); |
| 1004 | return -EINVAL; |
| 1005 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1006 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1007 | rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1008 | if (!rom_desc) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1009 | dev_err(dev, "%s - out of memory.\n", __func__); |
| 1010 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1011 | return -ENOMEM; |
| 1012 | } |
| 1013 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1014 | /* Search for type 2 record (firmware record) */ |
| 1015 | start_address = get_descriptor_addr(serial, |
| 1016 | I2C_DESC_TYPE_FIRMWARE_BASIC, rom_desc); |
| 1017 | if (start_address != 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1018 | struct ti_i2c_firmware_rec *firmware_version; |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 1019 | u8 *record; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1020 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1021 | dev_dbg(dev, "%s - Found Type FIRMWARE (Type 2) record\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1022 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1023 | firmware_version = kmalloc(sizeof(*firmware_version), |
| 1024 | GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1025 | if (!firmware_version) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1026 | dev_err(dev, "%s - out of memory.\n", __func__); |
| 1027 | kfree(rom_desc); |
| 1028 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1029 | return -ENOMEM; |
| 1030 | } |
| 1031 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1032 | /* Validate version number |
| 1033 | * Read the descriptor data |
| 1034 | */ |
| 1035 | status = read_rom(serial, start_address + |
| 1036 | sizeof(struct ti_i2c_desc), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1037 | sizeof(struct ti_i2c_firmware_rec), |
| 1038 | (__u8 *)firmware_version); |
| 1039 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1040 | kfree(firmware_version); |
| 1041 | kfree(rom_desc); |
| 1042 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1043 | return status; |
| 1044 | } |
| 1045 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1046 | /* Check version number of download with current |
| 1047 | version in I2c */ |
| 1048 | download_cur_ver = (firmware_version->Ver_Major << 8) + |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1049 | (firmware_version->Ver_Minor); |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 1050 | download_new_ver = (OperationalMajorVersion << 8) + |
| 1051 | (OperationalMinorVersion); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1052 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1053 | dev_dbg(dev, "%s - >> FW Versions Device %d.%d Driver %d.%d\n", |
| 1054 | __func__, firmware_version->Ver_Major, |
| 1055 | firmware_version->Ver_Minor, |
| 1056 | OperationalMajorVersion, |
| 1057 | OperationalMinorVersion); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1058 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1059 | /* Check if we have an old version in the I2C and |
| 1060 | update if necessary */ |
Greg Kroah-Hartman | 0827a9f | 2010-08-17 15:15:37 -0700 | [diff] [blame] | 1061 | if (download_cur_ver < download_new_ver) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1062 | dev_dbg(dev, "%s - Update I2C dld from %d.%d to %d.%d\n", |
| 1063 | __func__, |
| 1064 | firmware_version->Ver_Major, |
| 1065 | firmware_version->Ver_Minor, |
| 1066 | OperationalMajorVersion, |
| 1067 | OperationalMinorVersion); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1068 | |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 1069 | record = kmalloc(1, GFP_KERNEL); |
| 1070 | if (!record) { |
| 1071 | dev_err(dev, "%s - out of memory.\n", |
| 1072 | __func__); |
| 1073 | kfree(firmware_version); |
| 1074 | kfree(rom_desc); |
| 1075 | kfree(ti_manuf_desc); |
| 1076 | return -ENOMEM; |
| 1077 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1078 | /* In order to update the I2C firmware we must |
| 1079 | * change the type 2 record to type 0xF2. This |
| 1080 | * will force the UMP to come up in Boot Mode. |
| 1081 | * Then while in boot mode, the driver will |
| 1082 | * download the latest firmware (padded to |
| 1083 | * 15.5k) into the UMP ram. Finally when the |
| 1084 | * device comes back up in download mode the |
| 1085 | * driver will cause the new firmware to be |
| 1086 | * copied from the UMP Ram to I2C and the |
| 1087 | * firmware will update the record type from |
| 1088 | * 0xf2 to 0x02. |
| 1089 | */ |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 1090 | *record = I2C_DESC_TYPE_FIRMWARE_BLANK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1091 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1092 | /* Change the I2C Firmware record type to |
| 1093 | 0xf2 to trigger an update */ |
| 1094 | status = write_rom(serial, start_address, |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 1095 | sizeof(*record), record); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1096 | if (status) { |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 1097 | kfree(record); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1098 | kfree(firmware_version); |
| 1099 | kfree(rom_desc); |
| 1100 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1101 | return status; |
| 1102 | } |
| 1103 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1104 | /* verify the write -- must do this in order |
| 1105 | * for write to complete before we do the |
| 1106 | * hardware reset |
| 1107 | */ |
| 1108 | status = read_rom(serial, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1109 | start_address, |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 1110 | sizeof(*record), |
| 1111 | record); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1112 | if (status) { |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 1113 | kfree(record); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1114 | kfree(firmware_version); |
| 1115 | kfree(rom_desc); |
| 1116 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1117 | return status; |
| 1118 | } |
| 1119 | |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 1120 | if (*record != I2C_DESC_TYPE_FIRMWARE_BLANK) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1121 | dev_err(dev, "%s - error resetting device\n", __func__); |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 1122 | kfree(record); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1123 | kfree(firmware_version); |
| 1124 | kfree(rom_desc); |
| 1125 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1126 | return -ENODEV; |
| 1127 | } |
| 1128 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1129 | dev_dbg(dev, "%s - HARDWARE RESET\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1130 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1131 | /* Reset UMP -- Back to BOOT MODE */ |
| 1132 | status = ti_vsend_sync(serial->serial->dev, |
| 1133 | UMPC_HARDWARE_RESET, |
| 1134 | 0, 0, NULL, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1135 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1136 | dev_dbg(dev, "%s - HARDWARE RESET return %d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1137 | |
| 1138 | /* return an error on purpose. */ |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 1139 | kfree(record); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1140 | kfree(firmware_version); |
| 1141 | kfree(rom_desc); |
| 1142 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1143 | return -ENODEV; |
| 1144 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1145 | kfree(firmware_version); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1146 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1147 | /* Search for type 0xF2 record (firmware blank record) */ |
| 1148 | else if ((start_address = get_descriptor_addr(serial, I2C_DESC_TYPE_FIRMWARE_BLANK, rom_desc)) != 0) { |
| 1149 | #define HEADER_SIZE (sizeof(struct ti_i2c_desc) + \ |
| 1150 | sizeof(struct ti_i2c_firmware_rec)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1151 | __u8 *header; |
| 1152 | __u8 *vheader; |
| 1153 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1154 | header = kmalloc(HEADER_SIZE, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1155 | if (!header) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1156 | dev_err(dev, "%s - out of memory.\n", __func__); |
| 1157 | kfree(rom_desc); |
| 1158 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1159 | return -ENOMEM; |
| 1160 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1161 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1162 | vheader = kmalloc(HEADER_SIZE, GFP_KERNEL); |
| 1163 | if (!vheader) { |
| 1164 | dev_err(dev, "%s - out of memory.\n", __func__); |
| 1165 | kfree(header); |
| 1166 | kfree(rom_desc); |
| 1167 | kfree(ti_manuf_desc); |
| 1168 | return -ENOMEM; |
| 1169 | } |
| 1170 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1171 | dev_dbg(dev, "%s - Found Type BLANK FIRMWARE (Type F2) record\n", __func__); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1172 | |
| 1173 | /* |
| 1174 | * In order to update the I2C firmware we must change |
| 1175 | * the type 2 record to type 0xF2. This will force the |
| 1176 | * UMP to come up in Boot Mode. Then while in boot |
| 1177 | * mode, the driver will download the latest firmware |
| 1178 | * (padded to 15.5k) into the UMP ram. Finally when the |
| 1179 | * device comes back up in download mode the driver |
| 1180 | * will cause the new firmware to be copied from the |
| 1181 | * UMP Ram to I2C and the firmware will update the |
| 1182 | * record type from 0xf2 to 0x02. |
| 1183 | */ |
| 1184 | status = build_i2c_fw_hdr(header, dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1185 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1186 | kfree(vheader); |
| 1187 | kfree(header); |
| 1188 | kfree(rom_desc); |
| 1189 | kfree(ti_manuf_desc); |
Roel Kluin | fd6e5bb | 2010-08-10 14:29:19 -0700 | [diff] [blame] | 1190 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1191 | } |
| 1192 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1193 | /* Update I2C with type 0xf2 record with correct |
| 1194 | size and checksum */ |
| 1195 | status = write_rom(serial, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1196 | start_address, |
| 1197 | HEADER_SIZE, |
| 1198 | header); |
| 1199 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1200 | kfree(vheader); |
| 1201 | kfree(header); |
| 1202 | kfree(rom_desc); |
| 1203 | kfree(ti_manuf_desc); |
Roel Kluin | 9800eb3 | 2010-07-20 15:29:08 -0700 | [diff] [blame] | 1204 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1205 | } |
| 1206 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1207 | /* verify the write -- must do this in order for |
| 1208 | write to complete before we do the hardware reset */ |
| 1209 | status = read_rom(serial, start_address, |
| 1210 | HEADER_SIZE, vheader); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1211 | |
| 1212 | if (status) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1213 | dev_dbg(dev, "%s - can't read header back\n", __func__); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1214 | kfree(vheader); |
| 1215 | kfree(header); |
| 1216 | kfree(rom_desc); |
| 1217 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1218 | return status; |
| 1219 | } |
| 1220 | if (memcmp(vheader, header, HEADER_SIZE)) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1221 | dev_dbg(dev, "%s - write download record failed\n", __func__); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1222 | kfree(vheader); |
| 1223 | kfree(header); |
| 1224 | kfree(rom_desc); |
| 1225 | kfree(ti_manuf_desc); |
Roel Kluin | 1e29709 | 2010-07-02 00:36:43 +0200 | [diff] [blame] | 1226 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1227 | } |
| 1228 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1229 | kfree(vheader); |
| 1230 | kfree(header); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1231 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1232 | dev_dbg(dev, "%s - Start firmware update\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1233 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1234 | /* Tell firmware to copy download image into I2C */ |
| 1235 | status = ti_vsend_sync(serial->serial->dev, |
| 1236 | UMPC_COPY_DNLD_TO_I2C, 0, 0, NULL, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1237 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1238 | dev_dbg(dev, "%s - Update complete 0x%x\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1239 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1240 | dev_err(dev, |
| 1241 | "%s - UMPC_COPY_DNLD_TO_I2C failed\n", |
| 1242 | __func__); |
| 1243 | kfree(rom_desc); |
| 1244 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1245 | return status; |
| 1246 | } |
| 1247 | } |
| 1248 | |
| 1249 | // The device is running the download code |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1250 | kfree(rom_desc); |
| 1251 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1252 | return 0; |
| 1253 | } |
| 1254 | |
| 1255 | /********************************************************************/ |
| 1256 | /* Boot Mode */ |
| 1257 | /********************************************************************/ |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1258 | dev_dbg(dev, "%s - RUNNING IN BOOT MODE\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1259 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1260 | /* Configure the TI device so we can use the BULK pipes for download */ |
| 1261 | status = config_boot_dev(serial->serial->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1262 | if (status) |
| 1263 | return status; |
| 1264 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1265 | if (le16_to_cpu(serial->serial->dev->descriptor.idVendor) |
| 1266 | != USB_VENDOR_ID_ION) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1267 | dev_dbg(dev, "%s - VID = 0x%x\n", __func__, |
| 1268 | le16_to_cpu(serial->serial->dev->descriptor.idVendor)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1269 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1270 | goto stayinbootmode; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1271 | } |
| 1272 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1273 | /* We have an ION device (I2c Must be programmed) |
| 1274 | Determine I2C image type */ |
| 1275 | if (i2c_type_bootmode(serial)) |
| 1276 | goto stayinbootmode; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1277 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1278 | /* Check for ION Vendor ID and that the I2C is valid */ |
| 1279 | if (!check_i2c_image(serial)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1280 | struct ti_i2c_image_header *header; |
| 1281 | int i; |
| 1282 | __u8 cs = 0; |
| 1283 | __u8 *buffer; |
| 1284 | int buffer_size; |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 1285 | int err; |
| 1286 | const struct firmware *fw; |
| 1287 | const char *fw_name = "edgeport/down3.bin"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1288 | |
| 1289 | /* Validate Hardware version number |
| 1290 | * Read Manufacturing Descriptor from TI Based Edgeport |
| 1291 | */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1292 | ti_manuf_desc = kmalloc(sizeof(*ti_manuf_desc), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1293 | if (!ti_manuf_desc) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1294 | dev_err(dev, "%s - out of memory.\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1295 | return -ENOMEM; |
| 1296 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1297 | status = get_manuf_info(serial, (__u8 *)ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1298 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1299 | kfree(ti_manuf_desc); |
| 1300 | goto stayinbootmode; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1301 | } |
| 1302 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1303 | /* Check for version 2 */ |
| 1304 | if (!ignore_cpu_rev && ti_cpu_rev(ti_manuf_desc) < 2) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1305 | dev_dbg(dev, "%s - Wrong CPU Rev %d (Must be 2)\n", |
| 1306 | __func__, ti_cpu_rev(ti_manuf_desc)); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1307 | kfree(ti_manuf_desc); |
| 1308 | goto stayinbootmode; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1309 | } |
| 1310 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1311 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1312 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1313 | /* |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1314 | * In order to update the I2C firmware we must change the type |
| 1315 | * 2 record to type 0xF2. This will force the UMP to come up |
| 1316 | * in Boot Mode. Then while in boot mode, the driver will |
| 1317 | * download the latest firmware (padded to 15.5k) into the |
| 1318 | * UMP ram. Finally when the device comes back up in download |
| 1319 | * mode the driver will cause the new firmware to be copied |
| 1320 | * from the UMP Ram to I2C and the firmware will update the |
| 1321 | * record type from 0xf2 to 0x02. |
| 1322 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1323 | * Do we really have to copy the whole firmware image, |
| 1324 | * or could we do this in place! |
| 1325 | */ |
| 1326 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1327 | /* Allocate a 15.5k buffer + 3 byte header */ |
| 1328 | buffer_size = (((1024 * 16) - 512) + |
| 1329 | sizeof(struct ti_i2c_image_header)); |
| 1330 | buffer = kmalloc(buffer_size, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1331 | if (!buffer) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1332 | dev_err(dev, "%s - out of memory\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1333 | return -ENOMEM; |
| 1334 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1335 | |
| 1336 | /* Initialize the buffer to 0xff (pad the buffer) */ |
| 1337 | memset(buffer, 0xff, buffer_size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1338 | |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 1339 | err = request_firmware(&fw, fw_name, dev); |
| 1340 | if (err) { |
Greg Kroah-Hartman | d9bb03d | 2012-09-18 16:59:23 +0100 | [diff] [blame] | 1341 | dev_err(dev, "Failed to load image \"%s\" err %d\n", |
| 1342 | fw_name, err); |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 1343 | kfree(buffer); |
| 1344 | return err; |
| 1345 | } |
| 1346 | memcpy(buffer, &fw->data[4], fw->size - 4); |
| 1347 | release_firmware(fw); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1348 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1349 | for (i = sizeof(struct ti_i2c_image_header); |
| 1350 | i < buffer_size; i++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1351 | cs = (__u8)(cs + buffer[i]); |
| 1352 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1353 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1354 | header = (struct ti_i2c_image_header *)buffer; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1355 | |
| 1356 | /* update length and checksum after padding */ |
| 1357 | header->Length = cpu_to_le16((__u16)(buffer_size - |
| 1358 | sizeof(struct ti_i2c_image_header))); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1359 | header->CheckSum = cs; |
| 1360 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1361 | /* Download the operational code */ |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1362 | dev_dbg(dev, "%s - Downloading operational code image (TI UMP)\n", __func__); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1363 | status = download_code(serial, buffer, buffer_size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1364 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1365 | kfree(buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1366 | |
| 1367 | if (status) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1368 | dev_dbg(dev, "%s - Error downloading operational code image\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1369 | return status; |
| 1370 | } |
| 1371 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1372 | /* Device will reboot */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1373 | serial->product_info.TiMode = TI_MODE_TRANSITIONING; |
| 1374 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1375 | dev_dbg(dev, "%s - Download successful -- Device rebooting...\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1376 | |
| 1377 | /* return an error on purpose */ |
| 1378 | return -ENODEV; |
| 1379 | } |
| 1380 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1381 | stayinbootmode: |
| 1382 | /* Eprom is invalid or blank stay in boot mode */ |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1383 | dev_dbg(dev, "%s - STAYING IN BOOT MODE\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1384 | serial->product_info.TiMode = TI_MODE_BOOT; |
| 1385 | |
| 1386 | return 0; |
| 1387 | } |
| 1388 | |
| 1389 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1390 | static int ti_do_config(struct edgeport_port *port, int feature, int on) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1391 | { |
Greg Kroah-Hartman | 1143832 | 2013-06-06 10:32:00 -0700 | [diff] [blame] | 1392 | int port_number = port->port->port_number; |
| 1393 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1394 | on = !!on; /* 1 or 0 not bitmask */ |
| 1395 | return send_cmd(port->port->serial->dev, |
| 1396 | feature, (__u8)(UMPM_UART1_PORT + port_number), |
| 1397 | on, NULL, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1398 | } |
| 1399 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1400 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1401 | static int restore_mcr(struct edgeport_port *port, __u8 mcr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1402 | { |
| 1403 | int status = 0; |
| 1404 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1405 | dev_dbg(&port->port->dev, "%s - %x\n", __func__, mcr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1406 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1407 | status = ti_do_config(port, UMPC_SET_CLR_DTR, mcr & MCR_DTR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1408 | if (status) |
| 1409 | return status; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1410 | status = ti_do_config(port, UMPC_SET_CLR_RTS, mcr & MCR_RTS); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1411 | if (status) |
| 1412 | return status; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1413 | return ti_do_config(port, UMPC_SET_CLR_LOOPBACK, mcr & MCR_LOOPBACK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1414 | } |
| 1415 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1416 | /* Convert TI LSR to standard UART flags */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1417 | static __u8 map_line_status(__u8 ti_lsr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1418 | { |
| 1419 | __u8 lsr = 0; |
| 1420 | |
| 1421 | #define MAP_FLAG(flagUmp, flagUart) \ |
| 1422 | if (ti_lsr & flagUmp) \ |
| 1423 | lsr |= flagUart; |
| 1424 | |
| 1425 | MAP_FLAG(UMP_UART_LSR_OV_MASK, LSR_OVER_ERR) /* overrun */ |
| 1426 | MAP_FLAG(UMP_UART_LSR_PE_MASK, LSR_PAR_ERR) /* parity error */ |
| 1427 | MAP_FLAG(UMP_UART_LSR_FE_MASK, LSR_FRM_ERR) /* framing error */ |
| 1428 | MAP_FLAG(UMP_UART_LSR_BR_MASK, LSR_BREAK) /* break detected */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1429 | MAP_FLAG(UMP_UART_LSR_RX_MASK, LSR_RX_AVAIL) /* rx data available */ |
| 1430 | MAP_FLAG(UMP_UART_LSR_TX_MASK, LSR_TX_EMPTY) /* tx hold reg empty */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1431 | |
| 1432 | #undef MAP_FLAG |
| 1433 | |
| 1434 | return lsr; |
| 1435 | } |
| 1436 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1437 | static void handle_new_msr(struct edgeport_port *edge_port, __u8 msr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1438 | { |
| 1439 | struct async_icount *icount; |
| 1440 | struct tty_struct *tty; |
| 1441 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1442 | dev_dbg(&edge_port->port->dev, "%s - %02x\n", __func__, msr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1443 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1444 | if (msr & (EDGEPORT_MSR_DELTA_CTS | EDGEPORT_MSR_DELTA_DSR | |
| 1445 | EDGEPORT_MSR_DELTA_RI | EDGEPORT_MSR_DELTA_CD)) { |
Johan Hovold | cf9a9d6 | 2013-03-21 12:37:09 +0100 | [diff] [blame] | 1446 | icount = &edge_port->port->icount; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1447 | |
| 1448 | /* update input line counters */ |
| 1449 | if (msr & EDGEPORT_MSR_DELTA_CTS) |
| 1450 | icount->cts++; |
| 1451 | if (msr & EDGEPORT_MSR_DELTA_DSR) |
| 1452 | icount->dsr++; |
| 1453 | if (msr & EDGEPORT_MSR_DELTA_CD) |
| 1454 | icount->dcd++; |
| 1455 | if (msr & EDGEPORT_MSR_DELTA_RI) |
| 1456 | icount->rng++; |
Johan Hovold | 48ee580 | 2013-03-21 12:37:10 +0100 | [diff] [blame] | 1457 | wake_up_interruptible(&edge_port->port->port.delta_msr_wait); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1458 | } |
| 1459 | |
| 1460 | /* Save the new modem status */ |
| 1461 | edge_port->shadow_msr = msr & 0xf0; |
| 1462 | |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1463 | tty = tty_port_tty_get(&edge_port->port->port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1464 | /* handle CTS flow control */ |
| 1465 | if (tty && C_CRTSCTS(tty)) { |
| 1466 | if (msr & EDGEPORT_MSR_CTS) { |
| 1467 | tty->hw_stopped = 0; |
| 1468 | tty_wakeup(tty); |
| 1469 | } else { |
| 1470 | tty->hw_stopped = 1; |
| 1471 | } |
| 1472 | } |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1473 | tty_kref_put(tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1474 | } |
| 1475 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1476 | static void handle_new_lsr(struct edgeport_port *edge_port, int lsr_data, |
| 1477 | __u8 lsr, __u8 data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1478 | { |
| 1479 | struct async_icount *icount; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1480 | __u8 new_lsr = (__u8)(lsr & (__u8)(LSR_OVER_ERR | LSR_PAR_ERR | |
| 1481 | LSR_FRM_ERR | LSR_BREAK)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1482 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1483 | dev_dbg(&edge_port->port->dev, "%s - %02x\n", __func__, new_lsr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1484 | |
| 1485 | edge_port->shadow_lsr = lsr; |
| 1486 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1487 | if (new_lsr & LSR_BREAK) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1488 | /* |
| 1489 | * Parity and Framing errors only count if they |
| 1490 | * occur exclusive of a break being received. |
| 1491 | */ |
| 1492 | new_lsr &= (__u8)(LSR_OVER_ERR | LSR_BREAK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1493 | |
| 1494 | /* Place LSR data byte into Rx buffer */ |
Jiri Slaby | 2e124b4 | 2013-01-03 15:53:06 +0100 | [diff] [blame] | 1495 | if (lsr_data) |
| 1496 | edge_tty_recv(edge_port->port, &data, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1497 | |
| 1498 | /* update input line counters */ |
Johan Hovold | cf9a9d6 | 2013-03-21 12:37:09 +0100 | [diff] [blame] | 1499 | icount = &edge_port->port->icount; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1500 | if (new_lsr & LSR_BREAK) |
| 1501 | icount->brk++; |
| 1502 | if (new_lsr & LSR_OVER_ERR) |
| 1503 | icount->overrun++; |
| 1504 | if (new_lsr & LSR_PAR_ERR) |
| 1505 | icount->parity++; |
| 1506 | if (new_lsr & LSR_FRM_ERR) |
| 1507 | icount->frame++; |
| 1508 | } |
| 1509 | |
| 1510 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1511 | static void edge_interrupt_callback(struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1512 | { |
Ming Lei | cdc9779 | 2008-02-24 18:41:47 +0800 | [diff] [blame] | 1513 | struct edgeport_serial *edge_serial = urb->context; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1514 | struct usb_serial_port *port; |
| 1515 | struct edgeport_port *edge_port; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1516 | struct device *dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1517 | unsigned char *data = urb->transfer_buffer; |
| 1518 | int length = urb->actual_length; |
| 1519 | int port_number; |
| 1520 | int function; |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1521 | int retval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1522 | __u8 lsr; |
| 1523 | __u8 msr; |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1524 | int status = urb->status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1525 | |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1526 | switch (status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1527 | case 0: |
| 1528 | /* success */ |
| 1529 | break; |
| 1530 | case -ECONNRESET: |
| 1531 | case -ENOENT: |
| 1532 | case -ESHUTDOWN: |
| 1533 | /* this urb is terminated, clean up */ |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1534 | dev_dbg(&urb->dev->dev, "%s - urb shutting down with status: %d\n", |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1535 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1536 | return; |
| 1537 | default: |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1538 | dev_err(&urb->dev->dev, "%s - nonzero urb status received: " |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1539 | "%d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1540 | goto exit; |
| 1541 | } |
| 1542 | |
| 1543 | if (!length) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1544 | dev_dbg(&urb->dev->dev, "%s - no data in urb\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1545 | goto exit; |
| 1546 | } |
| 1547 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1548 | dev = &edge_serial->serial->dev->dev; |
Greg Kroah-Hartman | 59d33f2 | 2012-09-18 09:58:57 +0100 | [diff] [blame] | 1549 | usb_serial_debug_data(dev, __func__, length, data); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1550 | |
| 1551 | if (length != 2) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1552 | dev_dbg(dev, "%s - expecting packet of size 2, got %d\n", __func__, length); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1553 | goto exit; |
| 1554 | } |
| 1555 | |
| 1556 | port_number = TIUMP_GET_PORT_FROM_CODE(data[0]); |
| 1557 | function = TIUMP_GET_FUNC_FROM_CODE(data[0]); |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1558 | dev_dbg(dev, "%s - port_number %d, function %d, info 0x%x\n", __func__, |
| 1559 | port_number, function, data[1]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1560 | port = edge_serial->serial->port[port_number]; |
| 1561 | edge_port = usb_get_serial_port_data(port); |
| 1562 | if (!edge_port) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1563 | dev_dbg(dev, "%s - edge_port not found\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1564 | return; |
| 1565 | } |
| 1566 | switch (function) { |
| 1567 | case TIUMP_INTERRUPT_CODE_LSR: |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1568 | lsr = map_line_status(data[1]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1569 | if (lsr & UMP_UART_LSR_DATA_MASK) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1570 | /* Save the LSR event for bulk read |
| 1571 | completion routine */ |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1572 | dev_dbg(dev, "%s - LSR Event Port %u LSR Status = %02x\n", |
| 1573 | __func__, port_number, lsr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1574 | edge_port->lsr_event = 1; |
| 1575 | edge_port->lsr_mask = lsr; |
| 1576 | } else { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1577 | dev_dbg(dev, "%s - ===== Port %d LSR Status = %02x ======\n", |
| 1578 | __func__, port_number, lsr); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1579 | handle_new_lsr(edge_port, 0, lsr, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1580 | } |
| 1581 | break; |
| 1582 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1583 | case TIUMP_INTERRUPT_CODE_MSR: /* MSR */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1584 | /* Copy MSR from UMP */ |
| 1585 | msr = data[1]; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1586 | dev_dbg(dev, "%s - ===== Port %u MSR Status = %02x ======\n", |
| 1587 | __func__, port_number, msr); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1588 | handle_new_msr(edge_port, msr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1589 | break; |
| 1590 | |
| 1591 | default: |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1592 | dev_err(&urb->dev->dev, |
| 1593 | "%s - Unknown Interrupt code from UMP %x\n", |
| 1594 | __func__, data[1]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1595 | break; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1596 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1597 | } |
| 1598 | |
| 1599 | exit: |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1600 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1601 | if (retval) |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1602 | dev_err(&urb->dev->dev, |
| 1603 | "%s - usb_submit_urb failed with result %d\n", |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1604 | __func__, retval); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1605 | } |
| 1606 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1607 | static void edge_bulk_in_callback(struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1608 | { |
Ming Lei | cdc9779 | 2008-02-24 18:41:47 +0800 | [diff] [blame] | 1609 | struct edgeport_port *edge_port = urb->context; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1610 | struct device *dev = &edge_port->port->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1611 | unsigned char *data = urb->transfer_buffer; |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1612 | int retval = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1613 | int port_number; |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1614 | int status = urb->status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1615 | |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1616 | switch (status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1617 | case 0: |
| 1618 | /* success */ |
| 1619 | break; |
| 1620 | case -ECONNRESET: |
| 1621 | case -ENOENT: |
| 1622 | case -ESHUTDOWN: |
| 1623 | /* this urb is terminated, clean up */ |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1624 | dev_dbg(&urb->dev->dev, "%s - urb shutting down with status: %d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1625 | return; |
| 1626 | default: |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1627 | dev_err(&urb->dev->dev, "%s - nonzero read bulk status received: %d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1628 | } |
| 1629 | |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1630 | if (status == -EPIPE) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1631 | goto exit; |
| 1632 | |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1633 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1634 | dev_err(&urb->dev->dev, "%s - stopping read!\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1635 | return; |
| 1636 | } |
| 1637 | |
Greg Kroah-Hartman | 1143832 | 2013-06-06 10:32:00 -0700 | [diff] [blame] | 1638 | port_number = edge_port->port->port_number; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1639 | |
| 1640 | if (edge_port->lsr_event) { |
| 1641 | edge_port->lsr_event = 0; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1642 | dev_dbg(dev, "%s ===== Port %u LSR Status = %02x, Data = %02x ======\n", |
| 1643 | __func__, port_number, edge_port->lsr_mask, *data); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1644 | handle_new_lsr(edge_port, 1, edge_port->lsr_mask, *data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1645 | /* Adjust buffer length/pointer */ |
| 1646 | --urb->actual_length; |
| 1647 | ++data; |
| 1648 | } |
| 1649 | |
Jiri Slaby | 2e124b4 | 2013-01-03 15:53:06 +0100 | [diff] [blame] | 1650 | if (urb->actual_length) { |
Greg Kroah-Hartman | 59d33f2 | 2012-09-18 09:58:57 +0100 | [diff] [blame] | 1651 | usb_serial_debug_data(dev, __func__, urb->actual_length, data); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1652 | if (edge_port->close_pending) |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1653 | dev_dbg(dev, "%s - close pending, dropping data on the floor\n", |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1654 | __func__); |
| 1655 | else |
Jiri Slaby | 2e124b4 | 2013-01-03 15:53:06 +0100 | [diff] [blame] | 1656 | edge_tty_recv(edge_port->port, data, |
Jiri Slaby | 05c7cd3 | 2013-01-03 15:53:04 +0100 | [diff] [blame] | 1657 | urb->actual_length); |
Johan Hovold | cf9a9d6 | 2013-03-21 12:37:09 +0100 | [diff] [blame] | 1658 | edge_port->port->icount.rx += urb->actual_length; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1659 | } |
| 1660 | |
| 1661 | exit: |
| 1662 | /* continue read unless stopped */ |
| 1663 | spin_lock(&edge_port->ep_lock); |
Johan Hovold | 5833041 | 2011-11-06 19:06:28 +0100 | [diff] [blame] | 1664 | if (edge_port->ep_read_urb_state == EDGE_READ_URB_RUNNING) |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1665 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
Johan Hovold | 5833041 | 2011-11-06 19:06:28 +0100 | [diff] [blame] | 1666 | else if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPING) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1667 | edge_port->ep_read_urb_state = EDGE_READ_URB_STOPPED; |
Johan Hovold | 5833041 | 2011-11-06 19:06:28 +0100 | [diff] [blame] | 1668 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1669 | spin_unlock(&edge_port->ep_lock); |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1670 | if (retval) |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1671 | dev_err(dev, "%s - usb_submit_urb failed with result %d\n", __func__, retval); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1672 | } |
| 1673 | |
Jiri Slaby | 2e124b4 | 2013-01-03 15:53:06 +0100 | [diff] [blame] | 1674 | static void edge_tty_recv(struct usb_serial_port *port, unsigned char *data, |
| 1675 | int length) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1676 | { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1677 | int queued; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1678 | |
Jiri Slaby | 05c7cd3 | 2013-01-03 15:53:04 +0100 | [diff] [blame] | 1679 | queued = tty_insert_flip_string(&port->port, data, length); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1680 | if (queued < length) |
Jiri Slaby | 05c7cd3 | 2013-01-03 15:53:04 +0100 | [diff] [blame] | 1681 | dev_err(&port->dev, "%s - dropping data, %d bytes lost\n", |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1682 | __func__, length - queued); |
Jiri Slaby | 2e124b4 | 2013-01-03 15:53:06 +0100 | [diff] [blame] | 1683 | tty_flip_buffer_push(&port->port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1684 | } |
| 1685 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1686 | static void edge_bulk_out_callback(struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1687 | { |
Ming Lei | cdc9779 | 2008-02-24 18:41:47 +0800 | [diff] [blame] | 1688 | struct usb_serial_port *port = urb->context; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1689 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1690 | int status = urb->status; |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1691 | struct tty_struct *tty; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1692 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1693 | edge_port->ep_write_urb_in_use = 0; |
| 1694 | |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1695 | switch (status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1696 | case 0: |
| 1697 | /* success */ |
| 1698 | break; |
| 1699 | case -ECONNRESET: |
| 1700 | case -ENOENT: |
| 1701 | case -ESHUTDOWN: |
| 1702 | /* this urb is terminated, clean up */ |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1703 | dev_dbg(&urb->dev->dev, "%s - urb shutting down with status: %d\n", |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1704 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1705 | return; |
| 1706 | default: |
Johan Hovold | 22a416c | 2012-02-10 13:20:51 +0100 | [diff] [blame] | 1707 | dev_err_console(port, "%s - nonzero write bulk status " |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1708 | "received: %d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1709 | } |
| 1710 | |
| 1711 | /* send any buffered data */ |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1712 | tty = tty_port_tty_get(&port->port); |
Jiri Slaby | ae3759c | 2013-04-04 22:41:01 +0200 | [diff] [blame] | 1713 | edge_send(port, tty); |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1714 | tty_kref_put(tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1715 | } |
| 1716 | |
Alan Cox | a509a7e | 2009-09-19 13:13:26 -0700 | [diff] [blame] | 1717 | static int edge_open(struct tty_struct *tty, struct usb_serial_port *port) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1718 | { |
| 1719 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 1720 | struct edgeport_serial *edge_serial; |
| 1721 | struct usb_device *dev; |
| 1722 | struct urb *urb; |
| 1723 | int port_number; |
| 1724 | int status; |
| 1725 | u16 open_settings; |
| 1726 | u8 transaction_timeout; |
| 1727 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1728 | if (edge_port == NULL) |
| 1729 | return -ENODEV; |
| 1730 | |
Greg Kroah-Hartman | 1143832 | 2013-06-06 10:32:00 -0700 | [diff] [blame] | 1731 | port_number = port->port_number; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1732 | switch (port_number) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1733 | case 0: |
| 1734 | edge_port->uart_base = UMPMEM_BASE_UART1; |
| 1735 | edge_port->dma_address = UMPD_OEDB1_ADDRESS; |
| 1736 | break; |
| 1737 | case 1: |
| 1738 | edge_port->uart_base = UMPMEM_BASE_UART2; |
| 1739 | edge_port->dma_address = UMPD_OEDB2_ADDRESS; |
| 1740 | break; |
| 1741 | default: |
| 1742 | dev_err(&port->dev, "Unknown port number!!!\n"); |
| 1743 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1744 | } |
| 1745 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1746 | dev_dbg(&port->dev, "%s - port_number = %d, uart_base = %04x, dma_address = %04x\n", |
| 1747 | __func__, port_number, edge_port->uart_base, edge_port->dma_address); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1748 | |
| 1749 | dev = port->serial->dev; |
| 1750 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1751 | /* turn off loopback */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1752 | status = ti_do_config(edge_port, UMPC_SET_CLR_LOOPBACK, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1753 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1754 | dev_err(&port->dev, |
| 1755 | "%s - cannot send clear loopback command, %d\n", |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1756 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1757 | return status; |
| 1758 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1759 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1760 | /* set up the port settings */ |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1761 | if (tty) |
Alan Cox | adc8d74 | 2012-07-14 15:31:47 +0100 | [diff] [blame] | 1762 | edge_set_termios(tty, port, &tty->termios); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1763 | |
| 1764 | /* open up the port */ |
| 1765 | |
| 1766 | /* milliseconds to timeout for DMA transfer */ |
| 1767 | transaction_timeout = 2; |
| 1768 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1769 | edge_port->ump_read_timeout = |
| 1770 | max(20, ((transaction_timeout * 3) / 2)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1771 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1772 | /* milliseconds to timeout for DMA transfer */ |
| 1773 | open_settings = (u8)(UMP_DMA_MODE_CONTINOUS | |
| 1774 | UMP_PIPE_TRANS_TIMEOUT_ENA | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1775 | (transaction_timeout << 2)); |
| 1776 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1777 | dev_dbg(&port->dev, "%s - Sending UMPC_OPEN_PORT\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1778 | |
| 1779 | /* Tell TI to open and start the port */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1780 | status = send_cmd(dev, UMPC_OPEN_PORT, |
| 1781 | (u8)(UMPM_UART1_PORT + port_number), open_settings, NULL, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1782 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1783 | dev_err(&port->dev, "%s - cannot send open command, %d\n", |
| 1784 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1785 | return status; |
| 1786 | } |
| 1787 | |
| 1788 | /* Start the DMA? */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1789 | status = send_cmd(dev, UMPC_START_PORT, |
| 1790 | (u8)(UMPM_UART1_PORT + port_number), 0, NULL, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1791 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1792 | dev_err(&port->dev, "%s - cannot send start DMA command, %d\n", |
| 1793 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1794 | return status; |
| 1795 | } |
| 1796 | |
| 1797 | /* Clear TX and RX buffers in UMP */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1798 | status = purge_port(port, UMP_PORT_DIR_OUT | UMP_PORT_DIR_IN); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1799 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1800 | dev_err(&port->dev, |
| 1801 | "%s - cannot send clear buffers command, %d\n", |
| 1802 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1803 | return status; |
| 1804 | } |
| 1805 | |
| 1806 | /* Read Initial MSR */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1807 | status = ti_vread_sync(dev, UMPC_READ_MSR, 0, |
| 1808 | (__u16)(UMPM_UART1_PORT + port_number), |
| 1809 | &edge_port->shadow_msr, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1810 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1811 | dev_err(&port->dev, "%s - cannot send read MSR command, %d\n", |
| 1812 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1813 | return status; |
| 1814 | } |
| 1815 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1816 | dev_dbg(&port->dev, "ShadowMSR 0x%X\n", edge_port->shadow_msr); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1817 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1818 | /* Set Initial MCR */ |
| 1819 | edge_port->shadow_mcr = MCR_RTS | MCR_DTR; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1820 | dev_dbg(&port->dev, "ShadowMCR 0x%X\n", edge_port->shadow_mcr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1821 | |
| 1822 | edge_serial = edge_port->edge_serial; |
Matthias Kaehlcke | 241ca64 | 2007-12-04 16:15:40 +0100 | [diff] [blame] | 1823 | if (mutex_lock_interruptible(&edge_serial->es_lock)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1824 | return -ERESTARTSYS; |
| 1825 | if (edge_serial->num_ports_open == 0) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1826 | /* we are the first port to open, post the interrupt urb */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1827 | urb = edge_serial->serial->port[0]->interrupt_in_urb; |
| 1828 | if (!urb) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1829 | dev_err(&port->dev, |
| 1830 | "%s - no interrupt urb present, exiting\n", |
| 1831 | __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1832 | status = -EINVAL; |
Matthias Kaehlcke | 241ca64 | 2007-12-04 16:15:40 +0100 | [diff] [blame] | 1833 | goto release_es_lock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1834 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1835 | urb->context = edge_serial; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1836 | status = usb_submit_urb(urb, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1837 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1838 | dev_err(&port->dev, |
| 1839 | "%s - usb_submit_urb failed with value %d\n", |
| 1840 | __func__, status); |
Matthias Kaehlcke | 241ca64 | 2007-12-04 16:15:40 +0100 | [diff] [blame] | 1841 | goto release_es_lock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1842 | } |
| 1843 | } |
| 1844 | |
| 1845 | /* |
| 1846 | * reset the data toggle on the bulk endpoints to work around bug in |
| 1847 | * host controllers where things get out of sync some times |
| 1848 | */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1849 | usb_clear_halt(dev, port->write_urb->pipe); |
| 1850 | usb_clear_halt(dev, port->read_urb->pipe); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1851 | |
| 1852 | /* start up our bulk read urb */ |
| 1853 | urb = port->read_urb; |
| 1854 | if (!urb) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1855 | dev_err(&port->dev, "%s - no read urb present, exiting\n", |
| 1856 | __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1857 | status = -EINVAL; |
| 1858 | goto unlink_int_urb; |
| 1859 | } |
| 1860 | edge_port->ep_read_urb_state = EDGE_READ_URB_RUNNING; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1861 | urb->context = edge_port; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1862 | status = usb_submit_urb(urb, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1863 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1864 | dev_err(&port->dev, |
| 1865 | "%s - read bulk usb_submit_urb failed with value %d\n", |
| 1866 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1867 | goto unlink_int_urb; |
| 1868 | } |
| 1869 | |
| 1870 | ++edge_serial->num_ports_open; |
| 1871 | |
Matthias Kaehlcke | 241ca64 | 2007-12-04 16:15:40 +0100 | [diff] [blame] | 1872 | goto release_es_lock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1873 | |
| 1874 | unlink_int_urb: |
| 1875 | if (edge_port->edge_serial->num_ports_open == 0) |
| 1876 | usb_kill_urb(port->serial->port[0]->interrupt_in_urb); |
Matthias Kaehlcke | 241ca64 | 2007-12-04 16:15:40 +0100 | [diff] [blame] | 1877 | release_es_lock: |
| 1878 | mutex_unlock(&edge_serial->es_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1879 | return status; |
| 1880 | } |
| 1881 | |
Alan Cox | 335f851 | 2009-06-11 12:26:29 +0100 | [diff] [blame] | 1882 | static void edge_close(struct usb_serial_port *port) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1883 | { |
| 1884 | struct edgeport_serial *edge_serial; |
| 1885 | struct edgeport_port *edge_port; |
Johan Hovold | af58105 | 2012-03-26 20:31:38 +0200 | [diff] [blame] | 1886 | struct usb_serial *serial = port->serial; |
Johan Hovold | 77de251 | 2013-01-14 16:52:54 +0100 | [diff] [blame] | 1887 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1888 | int port_number; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1889 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1890 | edge_serial = usb_get_serial_data(port->serial); |
| 1891 | edge_port = usb_get_serial_port_data(port); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1892 | if (edge_serial == NULL || edge_port == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1893 | return; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1894 | |
| 1895 | /* The bulkreadcompletion routine will check |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1896 | * this flag and dump add read data */ |
| 1897 | edge_port->close_pending = 1; |
| 1898 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1899 | usb_kill_urb(port->read_urb); |
| 1900 | usb_kill_urb(port->write_urb); |
| 1901 | edge_port->ep_write_urb_in_use = 0; |
Johan Hovold | 77de251 | 2013-01-14 16:52:54 +0100 | [diff] [blame] | 1902 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
Johan Hovold | ddca16e | 2013-06-26 16:47:37 +0200 | [diff] [blame^] | 1903 | kfifo_reset_out(&port->write_fifo); |
Johan Hovold | 77de251 | 2013-01-14 16:52:54 +0100 | [diff] [blame] | 1904 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1905 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1906 | dev_dbg(&port->dev, "%s - send umpc_close_port\n", __func__); |
Greg Kroah-Hartman | 1143832 | 2013-06-06 10:32:00 -0700 | [diff] [blame] | 1907 | port_number = port->port_number; |
Johan Hovold | bca87e9 | 2013-03-21 12:37:38 +0100 | [diff] [blame] | 1908 | send_cmd(serial->dev, UMPC_CLOSE_PORT, |
| 1909 | (__u8)(UMPM_UART1_PORT + port_number), 0, NULL, 0); |
Johan Hovold | af58105 | 2012-03-26 20:31:38 +0200 | [diff] [blame] | 1910 | |
Matthias Kaehlcke | 241ca64 | 2007-12-04 16:15:40 +0100 | [diff] [blame] | 1911 | mutex_lock(&edge_serial->es_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1912 | --edge_port->edge_serial->num_ports_open; |
| 1913 | if (edge_port->edge_serial->num_ports_open <= 0) { |
| 1914 | /* last port is now closed, let's shut down our interrupt urb */ |
| 1915 | usb_kill_urb(port->serial->port[0]->interrupt_in_urb); |
| 1916 | edge_port->edge_serial->num_ports_open = 0; |
| 1917 | } |
Matthias Kaehlcke | 241ca64 | 2007-12-04 16:15:40 +0100 | [diff] [blame] | 1918 | mutex_unlock(&edge_serial->es_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1919 | edge_port->close_pending = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1920 | } |
| 1921 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1922 | static int edge_write(struct tty_struct *tty, struct usb_serial_port *port, |
| 1923 | const unsigned char *data, int count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1924 | { |
| 1925 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1926 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1927 | if (count == 0) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1928 | dev_dbg(&port->dev, "%s - write request of 0 bytes\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1929 | return 0; |
| 1930 | } |
| 1931 | |
| 1932 | if (edge_port == NULL) |
| 1933 | return -ENODEV; |
| 1934 | if (edge_port->close_pending == 1) |
| 1935 | return -ENODEV; |
| 1936 | |
Johan Hovold | ddca16e | 2013-06-26 16:47:37 +0200 | [diff] [blame^] | 1937 | count = kfifo_in_locked(&port->write_fifo, data, count, |
Johan Hovold | d733cec | 2010-05-19 00:01:37 +0200 | [diff] [blame] | 1938 | &edge_port->ep_lock); |
Jiri Slaby | ae3759c | 2013-04-04 22:41:01 +0200 | [diff] [blame] | 1939 | edge_send(port, tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1940 | |
| 1941 | return count; |
| 1942 | } |
| 1943 | |
Jiri Slaby | ae3759c | 2013-04-04 22:41:01 +0200 | [diff] [blame] | 1944 | static void edge_send(struct usb_serial_port *port, struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1945 | { |
| 1946 | int count, result; |
| 1947 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1948 | unsigned long flags; |
| 1949 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1950 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
| 1951 | |
| 1952 | if (edge_port->ep_write_urb_in_use) { |
| 1953 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
| 1954 | return; |
| 1955 | } |
| 1956 | |
Johan Hovold | ddca16e | 2013-06-26 16:47:37 +0200 | [diff] [blame^] | 1957 | count = kfifo_out(&port->write_fifo, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1958 | port->write_urb->transfer_buffer, |
| 1959 | port->bulk_out_size); |
| 1960 | |
| 1961 | if (count == 0) { |
| 1962 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
| 1963 | return; |
| 1964 | } |
| 1965 | |
| 1966 | edge_port->ep_write_urb_in_use = 1; |
| 1967 | |
| 1968 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
| 1969 | |
Greg Kroah-Hartman | 59d33f2 | 2012-09-18 09:58:57 +0100 | [diff] [blame] | 1970 | usb_serial_debug_data(&port->dev, __func__, count, port->write_urb->transfer_buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1971 | |
| 1972 | /* set up our urb */ |
Johan Hovold | fd11961 | 2011-11-06 19:06:30 +0100 | [diff] [blame] | 1973 | port->write_urb->transfer_buffer_length = count; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1974 | |
| 1975 | /* send the data out the bulk port */ |
| 1976 | result = usb_submit_urb(port->write_urb, GFP_ATOMIC); |
| 1977 | if (result) { |
Johan Hovold | 22a416c | 2012-02-10 13:20:51 +0100 | [diff] [blame] | 1978 | dev_err_console(port, |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1979 | "%s - failed submitting write urb, error %d\n", |
| 1980 | __func__, result); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1981 | edge_port->ep_write_urb_in_use = 0; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1982 | /* TODO: reschedule edge_send */ |
| 1983 | } else |
Johan Hovold | cf9a9d6 | 2013-03-21 12:37:09 +0100 | [diff] [blame] | 1984 | edge_port->port->icount.tx += count; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1985 | |
| 1986 | /* wakeup any process waiting for writes to complete */ |
| 1987 | /* there is now more room in the buffer for new writes */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1988 | if (tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1989 | tty_wakeup(tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1990 | } |
| 1991 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1992 | static int edge_write_room(struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1993 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1994 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1995 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 1996 | int room = 0; |
| 1997 | unsigned long flags; |
| 1998 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1999 | if (edge_port == NULL) |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2000 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2001 | if (edge_port->close_pending == 1) |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2002 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2003 | |
| 2004 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
Johan Hovold | ddca16e | 2013-06-26 16:47:37 +0200 | [diff] [blame^] | 2005 | room = kfifo_avail(&port->write_fifo); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2006 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
| 2007 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2008 | dev_dbg(&port->dev, "%s - returns %d\n", __func__, room); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2009 | return room; |
| 2010 | } |
| 2011 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2012 | static int edge_chars_in_buffer(struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2013 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2014 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2015 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 2016 | int chars = 0; |
| 2017 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2018 | if (edge_port == NULL) |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2019 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2020 | |
| 2021 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
Johan Hovold | ddca16e | 2013-06-26 16:47:37 +0200 | [diff] [blame^] | 2022 | chars = kfifo_len(&port->write_fifo); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2023 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
| 2024 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2025 | dev_dbg(&port->dev, "%s - returns %d\n", __func__, chars); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2026 | return chars; |
| 2027 | } |
| 2028 | |
Johan Hovold | b16634a | 2013-05-05 20:32:31 +0200 | [diff] [blame] | 2029 | static bool edge_tx_empty(struct usb_serial_port *port) |
| 2030 | { |
| 2031 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 2032 | int ret; |
| 2033 | |
| 2034 | ret = tx_active(edge_port); |
| 2035 | if (ret > 0) |
| 2036 | return false; |
| 2037 | |
| 2038 | return true; |
| 2039 | } |
| 2040 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2041 | static void edge_throttle(struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2042 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2043 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2044 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2045 | int status; |
| 2046 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2047 | if (edge_port == NULL) |
| 2048 | return; |
| 2049 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2050 | /* if we are implementing XON/XOFF, send the stop character */ |
| 2051 | if (I_IXOFF(tty)) { |
| 2052 | unsigned char stop_char = STOP_CHAR(tty); |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2053 | status = edge_write(tty, port, &stop_char, 1); |
| 2054 | if (status <= 0) { |
| 2055 | dev_err(&port->dev, "%s - failed to write stop character, %d\n", __func__, status); |
| 2056 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2057 | } |
| 2058 | |
| 2059 | /* if we are implementing RTS/CTS, stop reads */ |
| 2060 | /* and the Edgeport will clear the RTS line */ |
| 2061 | if (C_CRTSCTS(tty)) |
| 2062 | stop_read(edge_port); |
| 2063 | |
| 2064 | } |
| 2065 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2066 | static void edge_unthrottle(struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2067 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2068 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2069 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2070 | int status; |
| 2071 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2072 | if (edge_port == NULL) |
| 2073 | return; |
| 2074 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2075 | /* if we are implementing XON/XOFF, send the start character */ |
| 2076 | if (I_IXOFF(tty)) { |
| 2077 | unsigned char start_char = START_CHAR(tty); |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2078 | status = edge_write(tty, port, &start_char, 1); |
| 2079 | if (status <= 0) { |
| 2080 | dev_err(&port->dev, "%s - failed to write start character, %d\n", __func__, status); |
| 2081 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2082 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2083 | /* if we are implementing RTS/CTS, restart reads */ |
| 2084 | /* are the Edgeport will assert the RTS line */ |
| 2085 | if (C_CRTSCTS(tty)) { |
| 2086 | status = restart_read(edge_port); |
| 2087 | if (status) |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2088 | dev_err(&port->dev, |
| 2089 | "%s - read bulk usb_submit_urb failed: %d\n", |
| 2090 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2091 | } |
| 2092 | |
| 2093 | } |
| 2094 | |
| 2095 | static void stop_read(struct edgeport_port *edge_port) |
| 2096 | { |
| 2097 | unsigned long flags; |
| 2098 | |
| 2099 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
| 2100 | |
| 2101 | if (edge_port->ep_read_urb_state == EDGE_READ_URB_RUNNING) |
| 2102 | edge_port->ep_read_urb_state = EDGE_READ_URB_STOPPING; |
| 2103 | edge_port->shadow_mcr &= ~MCR_RTS; |
| 2104 | |
| 2105 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
| 2106 | } |
| 2107 | |
| 2108 | static int restart_read(struct edgeport_port *edge_port) |
| 2109 | { |
| 2110 | struct urb *urb; |
| 2111 | int status = 0; |
| 2112 | unsigned long flags; |
| 2113 | |
| 2114 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
| 2115 | |
| 2116 | if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPED) { |
| 2117 | urb = edge_port->port->read_urb; |
Oliver Neukum | efdff60 | 2007-06-05 10:50:48 +0200 | [diff] [blame] | 2118 | status = usb_submit_urb(urb, GFP_ATOMIC); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2119 | } |
| 2120 | edge_port->ep_read_urb_state = EDGE_READ_URB_RUNNING; |
| 2121 | edge_port->shadow_mcr |= MCR_RTS; |
| 2122 | |
| 2123 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
| 2124 | |
| 2125 | return status; |
| 2126 | } |
| 2127 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2128 | static void change_port_settings(struct tty_struct *tty, |
| 2129 | struct edgeport_port *edge_port, struct ktermios *old_termios) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2130 | { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2131 | struct device *dev = &edge_port->port->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2132 | struct ump_uart_config *config; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2133 | int baud; |
| 2134 | unsigned cflag; |
| 2135 | int status; |
Greg Kroah-Hartman | 1143832 | 2013-06-06 10:32:00 -0700 | [diff] [blame] | 2136 | int port_number = edge_port->port->port_number; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2137 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2138 | config = kmalloc (sizeof (*config), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2139 | if (!config) { |
Alan Cox | adc8d74 | 2012-07-14 15:31:47 +0100 | [diff] [blame] | 2140 | tty->termios = *old_termios; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2141 | dev_err(dev, "%s - out of memory\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2142 | return; |
| 2143 | } |
| 2144 | |
Alan Cox | adc8d74 | 2012-07-14 15:31:47 +0100 | [diff] [blame] | 2145 | cflag = tty->termios.c_cflag; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2146 | |
| 2147 | config->wFlags = 0; |
| 2148 | |
| 2149 | /* These flags must be set */ |
| 2150 | config->wFlags |= UMP_MASK_UART_FLAGS_RECEIVE_MS_INT; |
| 2151 | config->wFlags |= UMP_MASK_UART_FLAGS_AUTO_START_ON_ERR; |
| 2152 | config->bUartMode = (__u8)(edge_port->bUartMode); |
| 2153 | |
| 2154 | switch (cflag & CSIZE) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2155 | case CS5: |
| 2156 | config->bDataBits = UMP_UART_CHAR5BITS; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2157 | dev_dbg(dev, "%s - data bits = 5\n", __func__); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2158 | break; |
| 2159 | case CS6: |
| 2160 | config->bDataBits = UMP_UART_CHAR6BITS; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2161 | dev_dbg(dev, "%s - data bits = 6\n", __func__); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2162 | break; |
| 2163 | case CS7: |
| 2164 | config->bDataBits = UMP_UART_CHAR7BITS; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2165 | dev_dbg(dev, "%s - data bits = 7\n", __func__); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2166 | break; |
| 2167 | default: |
| 2168 | case CS8: |
| 2169 | config->bDataBits = UMP_UART_CHAR8BITS; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2170 | dev_dbg(dev, "%s - data bits = 8\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2171 | break; |
| 2172 | } |
| 2173 | |
| 2174 | if (cflag & PARENB) { |
| 2175 | if (cflag & PARODD) { |
| 2176 | config->wFlags |= UMP_MASK_UART_FLAGS_PARITY; |
| 2177 | config->bParity = UMP_UART_ODDPARITY; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2178 | dev_dbg(dev, "%s - parity = odd\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2179 | } else { |
| 2180 | config->wFlags |= UMP_MASK_UART_FLAGS_PARITY; |
| 2181 | config->bParity = UMP_UART_EVENPARITY; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2182 | dev_dbg(dev, "%s - parity = even\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2183 | } |
| 2184 | } else { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2185 | config->bParity = UMP_UART_NOPARITY; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2186 | dev_dbg(dev, "%s - parity = none\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2187 | } |
| 2188 | |
| 2189 | if (cflag & CSTOPB) { |
| 2190 | config->bStopBits = UMP_UART_STOPBIT2; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2191 | dev_dbg(dev, "%s - stop bits = 2\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2192 | } else { |
| 2193 | config->bStopBits = UMP_UART_STOPBIT1; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2194 | dev_dbg(dev, "%s - stop bits = 1\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2195 | } |
| 2196 | |
| 2197 | /* figure out the flow control settings */ |
| 2198 | if (cflag & CRTSCTS) { |
| 2199 | config->wFlags |= UMP_MASK_UART_FLAGS_OUT_X_CTS_FLOW; |
| 2200 | config->wFlags |= UMP_MASK_UART_FLAGS_RTS_FLOW; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2201 | dev_dbg(dev, "%s - RTS/CTS is enabled\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2202 | } else { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2203 | dev_dbg(dev, "%s - RTS/CTS is disabled\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2204 | tty->hw_stopped = 0; |
| 2205 | restart_read(edge_port); |
| 2206 | } |
| 2207 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2208 | /* if we are implementing XON/XOFF, set the start and stop |
| 2209 | character in the device */ |
| 2210 | config->cXon = START_CHAR(tty); |
| 2211 | config->cXoff = STOP_CHAR(tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2212 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2213 | /* if we are implementing INBOUND XON/XOFF */ |
| 2214 | if (I_IXOFF(tty)) { |
| 2215 | config->wFlags |= UMP_MASK_UART_FLAGS_IN_X; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2216 | dev_dbg(dev, "%s - INBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x\n", |
| 2217 | __func__, config->cXon, config->cXoff); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2218 | } else |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2219 | dev_dbg(dev, "%s - INBOUND XON/XOFF is disabled\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2220 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2221 | /* if we are implementing OUTBOUND XON/XOFF */ |
| 2222 | if (I_IXON(tty)) { |
| 2223 | config->wFlags |= UMP_MASK_UART_FLAGS_OUT_X; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2224 | dev_dbg(dev, "%s - OUTBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x\n", |
| 2225 | __func__, config->cXon, config->cXoff); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2226 | } else |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2227 | dev_dbg(dev, "%s - OUTBOUND XON/XOFF is disabled\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2228 | |
Alan Cox | adc8d74 | 2012-07-14 15:31:47 +0100 | [diff] [blame] | 2229 | tty->termios.c_cflag &= ~CMSPAR; |
Alan Cox | d5f5bcd | 2008-01-03 16:57:33 +0000 | [diff] [blame] | 2230 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2231 | /* Round the baud rate */ |
| 2232 | baud = tty_get_baud_rate(tty); |
| 2233 | if (!baud) { |
| 2234 | /* pick a default, any default... */ |
| 2235 | baud = 9600; |
Alan Cox | d5f5bcd | 2008-01-03 16:57:33 +0000 | [diff] [blame] | 2236 | } else |
| 2237 | tty_encode_baud_rate(tty, baud, baud); |
| 2238 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2239 | edge_port->baud_rate = baud; |
| 2240 | config->wBaudRate = (__u16)((461550L + baud/2) / baud); |
| 2241 | |
Alan Cox | d5f5bcd | 2008-01-03 16:57:33 +0000 | [diff] [blame] | 2242 | /* FIXME: Recompute actual baud from divisor here */ |
| 2243 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2244 | dev_dbg(dev, "%s - baud rate = %d, wBaudRate = %d\n", __func__, baud, config->wBaudRate); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2245 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2246 | dev_dbg(dev, "wBaudRate: %d\n", (int)(461550L / config->wBaudRate)); |
| 2247 | dev_dbg(dev, "wFlags: 0x%x\n", config->wFlags); |
| 2248 | dev_dbg(dev, "bDataBits: %d\n", config->bDataBits); |
| 2249 | dev_dbg(dev, "bParity: %d\n", config->bParity); |
| 2250 | dev_dbg(dev, "bStopBits: %d\n", config->bStopBits); |
| 2251 | dev_dbg(dev, "cXon: %d\n", config->cXon); |
| 2252 | dev_dbg(dev, "cXoff: %d\n", config->cXoff); |
| 2253 | dev_dbg(dev, "bUartMode: %d\n", config->bUartMode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2254 | |
| 2255 | /* move the word values into big endian mode */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2256 | cpu_to_be16s(&config->wFlags); |
| 2257 | cpu_to_be16s(&config->wBaudRate); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2258 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2259 | status = send_cmd(edge_port->port->serial->dev, UMPC_SET_CONFIG, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2260 | (__u8)(UMPM_UART1_PORT + port_number), |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2261 | 0, (__u8 *)config, sizeof(*config)); |
| 2262 | if (status) |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2263 | dev_dbg(dev, "%s - error %d when trying to write config to device\n", |
| 2264 | __func__, status); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2265 | kfree(config); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2266 | } |
| 2267 | |
Alan Cox | 2e0ddd6 | 2008-07-22 11:12:33 +0100 | [diff] [blame] | 2268 | static void edge_set_termios(struct tty_struct *tty, |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2269 | struct usb_serial_port *port, struct ktermios *old_termios) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2270 | { |
| 2271 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2272 | unsigned int cflag; |
| 2273 | |
Alan Cox | adc8d74 | 2012-07-14 15:31:47 +0100 | [diff] [blame] | 2274 | cflag = tty->termios.c_cflag; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2275 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2276 | dev_dbg(&port->dev, "%s - clfag %08x iflag %08x\n", __func__, |
Linus Torvalds | d9a8074 | 2012-10-01 13:23:01 -0700 | [diff] [blame] | 2277 | tty->termios.c_cflag, tty->termios.c_iflag); |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2278 | dev_dbg(&port->dev, "%s - old clfag %08x old iflag %08x\n", __func__, |
| 2279 | old_termios->c_cflag, old_termios->c_iflag); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2280 | |
| 2281 | if (edge_port == NULL) |
| 2282 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2283 | /* change the port settings to the new ones specified */ |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2284 | change_port_settings(tty, edge_port, old_termios); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2285 | } |
| 2286 | |
Alan Cox | 20b9d17 | 2011-02-14 16:26:50 +0000 | [diff] [blame] | 2287 | static int edge_tiocmset(struct tty_struct *tty, |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2288 | unsigned int set, unsigned int clear) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2289 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2290 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2291 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 2292 | unsigned int mcr; |
Alan Cox | 3d71fe0 | 2008-02-20 21:38:32 +0000 | [diff] [blame] | 2293 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2294 | |
Alan Cox | 3d71fe0 | 2008-02-20 21:38:32 +0000 | [diff] [blame] | 2295 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2296 | mcr = edge_port->shadow_mcr; |
| 2297 | if (set & TIOCM_RTS) |
| 2298 | mcr |= MCR_RTS; |
| 2299 | if (set & TIOCM_DTR) |
| 2300 | mcr |= MCR_DTR; |
| 2301 | if (set & TIOCM_LOOP) |
| 2302 | mcr |= MCR_LOOPBACK; |
| 2303 | |
| 2304 | if (clear & TIOCM_RTS) |
| 2305 | mcr &= ~MCR_RTS; |
| 2306 | if (clear & TIOCM_DTR) |
| 2307 | mcr &= ~MCR_DTR; |
| 2308 | if (clear & TIOCM_LOOP) |
| 2309 | mcr &= ~MCR_LOOPBACK; |
| 2310 | |
| 2311 | edge_port->shadow_mcr = mcr; |
Alan Cox | 3d71fe0 | 2008-02-20 21:38:32 +0000 | [diff] [blame] | 2312 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2313 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2314 | restore_mcr(edge_port, mcr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2315 | return 0; |
| 2316 | } |
| 2317 | |
Alan Cox | 60b33c1 | 2011-02-14 16:26:14 +0000 | [diff] [blame] | 2318 | static int edge_tiocmget(struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2319 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2320 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2321 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 2322 | unsigned int result = 0; |
| 2323 | unsigned int msr; |
| 2324 | unsigned int mcr; |
Alan Cox | 3d71fe0 | 2008-02-20 21:38:32 +0000 | [diff] [blame] | 2325 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2326 | |
Alan Cox | 3d71fe0 | 2008-02-20 21:38:32 +0000 | [diff] [blame] | 2327 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
| 2328 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2329 | msr = edge_port->shadow_msr; |
| 2330 | mcr = edge_port->shadow_mcr; |
| 2331 | result = ((mcr & MCR_DTR) ? TIOCM_DTR: 0) /* 0x002 */ |
| 2332 | | ((mcr & MCR_RTS) ? TIOCM_RTS: 0) /* 0x004 */ |
| 2333 | | ((msr & EDGEPORT_MSR_CTS) ? TIOCM_CTS: 0) /* 0x020 */ |
| 2334 | | ((msr & EDGEPORT_MSR_CD) ? TIOCM_CAR: 0) /* 0x040 */ |
| 2335 | | ((msr & EDGEPORT_MSR_RI) ? TIOCM_RI: 0) /* 0x080 */ |
| 2336 | | ((msr & EDGEPORT_MSR_DSR) ? TIOCM_DSR: 0); /* 0x100 */ |
| 2337 | |
| 2338 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2339 | dev_dbg(&port->dev, "%s -- %x\n", __func__, result); |
Alan Cox | 3d71fe0 | 2008-02-20 21:38:32 +0000 | [diff] [blame] | 2340 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2341 | |
| 2342 | return result; |
| 2343 | } |
| 2344 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2345 | static int get_serial_info(struct edgeport_port *edge_port, |
| 2346 | struct serial_struct __user *retinfo) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2347 | { |
| 2348 | struct serial_struct tmp; |
Johan Hovold | f40d781 | 2013-01-14 16:52:58 +0100 | [diff] [blame] | 2349 | unsigned cwait; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2350 | |
| 2351 | if (!retinfo) |
| 2352 | return -EFAULT; |
| 2353 | |
Johan Hovold | f40d781 | 2013-01-14 16:52:58 +0100 | [diff] [blame] | 2354 | cwait = edge_port->port->port.closing_wait; |
| 2355 | if (cwait != ASYNC_CLOSING_WAIT_NONE) |
Johan Hovold | b6fd35e | 2013-04-18 17:33:17 +0200 | [diff] [blame] | 2356 | cwait = jiffies_to_msecs(cwait) / 10; |
Johan Hovold | f40d781 | 2013-01-14 16:52:58 +0100 | [diff] [blame] | 2357 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2358 | memset(&tmp, 0, sizeof(tmp)); |
| 2359 | |
| 2360 | tmp.type = PORT_16550A; |
Greg Kroah-Hartman | e5b1e20 | 2013-06-07 11:04:28 -0700 | [diff] [blame] | 2361 | tmp.line = edge_port->port->minor; |
Greg Kroah-Hartman | 1143832 | 2013-06-06 10:32:00 -0700 | [diff] [blame] | 2362 | tmp.port = edge_port->port->port_number; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2363 | tmp.irq = 0; |
| 2364 | tmp.flags = ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ; |
| 2365 | tmp.xmit_fifo_size = edge_port->port->bulk_out_size; |
| 2366 | tmp.baud_base = 9600; |
| 2367 | tmp.close_delay = 5*HZ; |
Johan Hovold | f40d781 | 2013-01-14 16:52:58 +0100 | [diff] [blame] | 2368 | tmp.closing_wait = cwait; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2369 | |
| 2370 | if (copy_to_user(retinfo, &tmp, sizeof(*retinfo))) |
| 2371 | return -EFAULT; |
| 2372 | return 0; |
| 2373 | } |
| 2374 | |
Alan Cox | 00a0d0d | 2011-02-14 16:27:06 +0000 | [diff] [blame] | 2375 | static int edge_ioctl(struct tty_struct *tty, |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2376 | unsigned int cmd, unsigned long arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2377 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2378 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2379 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2380 | |
Greg Kroah-Hartman | 1143832 | 2013-06-06 10:32:00 -0700 | [diff] [blame] | 2381 | dev_dbg(&port->dev, "%s - cmd = 0x%x\n", __func__, cmd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2382 | |
| 2383 | switch (cmd) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2384 | case TIOCGSERIAL: |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2385 | dev_dbg(&port->dev, "%s - TIOCGSERIAL\n", __func__); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2386 | return get_serial_info(edge_port, |
| 2387 | (struct serial_struct __user *) arg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2388 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2389 | return -ENOIOCTLCMD; |
| 2390 | } |
| 2391 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2392 | static void edge_break(struct tty_struct *tty, int break_state) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2393 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2394 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2395 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 2396 | int status; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2397 | int bv = 0; /* Off */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2398 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2399 | if (break_state == -1) |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2400 | bv = 1; /* On */ |
| 2401 | status = ti_do_config(edge_port, UMPC_SET_CLR_BREAK, bv); |
| 2402 | if (status) |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2403 | dev_dbg(&port->dev, "%s - error %d sending break set/clear command.\n", |
| 2404 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2405 | } |
| 2406 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2407 | static int edge_startup(struct usb_serial *serial) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2408 | { |
| 2409 | struct edgeport_serial *edge_serial; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2410 | int status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2411 | |
| 2412 | /* create our private serial structure */ |
Eric Sesterhenn | 80b6ca4 | 2006-02-27 21:29:43 +0100 | [diff] [blame] | 2413 | edge_serial = kzalloc(sizeof(struct edgeport_serial), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2414 | if (edge_serial == NULL) { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 2415 | dev_err(&serial->dev->dev, "%s - Out of memory\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2416 | return -ENOMEM; |
| 2417 | } |
Matthias Kaehlcke | 241ca64 | 2007-12-04 16:15:40 +0100 | [diff] [blame] | 2418 | mutex_init(&edge_serial->es_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2419 | edge_serial->serial = serial; |
| 2420 | usb_set_serial_data(serial, edge_serial); |
| 2421 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2422 | status = download_fw(edge_serial); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2423 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2424 | kfree(edge_serial); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2425 | return status; |
| 2426 | } |
| 2427 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2428 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2429 | } |
| 2430 | |
Alan Stern | f9c99bb | 2009-06-02 11:53:55 -0400 | [diff] [blame] | 2431 | static void edge_disconnect(struct usb_serial *serial) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2432 | { |
Alan Stern | f9c99bb | 2009-06-02 11:53:55 -0400 | [diff] [blame] | 2433 | } |
| 2434 | |
| 2435 | static void edge_release(struct usb_serial *serial) |
| 2436 | { |
Jesper Juhl | 0d46c00 | 2007-07-16 22:17:25 +0200 | [diff] [blame] | 2437 | kfree(usb_get_serial_data(serial)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2438 | } |
| 2439 | |
Johan Hovold | 0036153 | 2012-10-17 13:34:58 +0200 | [diff] [blame] | 2440 | static int edge_port_probe(struct usb_serial_port *port) |
| 2441 | { |
| 2442 | struct edgeport_port *edge_port; |
| 2443 | int ret; |
| 2444 | |
| 2445 | edge_port = kzalloc(sizeof(*edge_port), GFP_KERNEL); |
| 2446 | if (!edge_port) |
| 2447 | return -ENOMEM; |
| 2448 | |
Johan Hovold | 0036153 | 2012-10-17 13:34:58 +0200 | [diff] [blame] | 2449 | spin_lock_init(&edge_port->ep_lock); |
| 2450 | edge_port->port = port; |
| 2451 | edge_port->edge_serial = usb_get_serial_data(port->serial); |
| 2452 | edge_port->bUartMode = default_uart_mode; |
| 2453 | |
| 2454 | usb_set_serial_port_data(port, edge_port); |
| 2455 | |
Johan Hovold | 5d8c61b | 2012-10-18 11:43:28 +0200 | [diff] [blame] | 2456 | ret = edge_create_sysfs_attrs(port); |
| 2457 | if (ret) { |
Johan Hovold | 5d8c61b | 2012-10-18 11:43:28 +0200 | [diff] [blame] | 2458 | kfree(edge_port); |
| 2459 | return ret; |
| 2460 | } |
| 2461 | |
Johan Hovold | f40d781 | 2013-01-14 16:52:58 +0100 | [diff] [blame] | 2462 | port->port.closing_wait = msecs_to_jiffies(closing_wait * 10); |
Johan Hovold | d7be622 | 2013-06-26 16:47:23 +0200 | [diff] [blame] | 2463 | port->port.drain_delay = 1; |
Johan Hovold | f40d781 | 2013-01-14 16:52:58 +0100 | [diff] [blame] | 2464 | |
Johan Hovold | 0036153 | 2012-10-17 13:34:58 +0200 | [diff] [blame] | 2465 | return 0; |
| 2466 | } |
| 2467 | |
| 2468 | static int edge_port_remove(struct usb_serial_port *port) |
| 2469 | { |
| 2470 | struct edgeport_port *edge_port; |
| 2471 | |
| 2472 | edge_port = usb_get_serial_port_data(port); |
Johan Hovold | 0036153 | 2012-10-17 13:34:58 +0200 | [diff] [blame] | 2473 | edge_remove_sysfs_attrs(port); |
Johan Hovold | 0036153 | 2012-10-17 13:34:58 +0200 | [diff] [blame] | 2474 | kfree(edge_port); |
| 2475 | |
| 2476 | return 0; |
| 2477 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2478 | |
Martin K. Petersen | fc4cbd7 | 2007-05-22 15:57:04 -0400 | [diff] [blame] | 2479 | /* Sysfs Attributes */ |
| 2480 | |
| 2481 | static ssize_t show_uart_mode(struct device *dev, |
| 2482 | struct device_attribute *attr, char *buf) |
| 2483 | { |
| 2484 | struct usb_serial_port *port = to_usb_serial_port(dev); |
| 2485 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 2486 | |
| 2487 | return sprintf(buf, "%d\n", edge_port->bUartMode); |
| 2488 | } |
| 2489 | |
| 2490 | static ssize_t store_uart_mode(struct device *dev, |
| 2491 | struct device_attribute *attr, const char *valbuf, size_t count) |
| 2492 | { |
| 2493 | struct usb_serial_port *port = to_usb_serial_port(dev); |
| 2494 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 2495 | unsigned int v = simple_strtoul(valbuf, NULL, 0); |
| 2496 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2497 | dev_dbg(dev, "%s: setting uart_mode = %d\n", __func__, v); |
Martin K. Petersen | fc4cbd7 | 2007-05-22 15:57:04 -0400 | [diff] [blame] | 2498 | |
| 2499 | if (v < 256) |
| 2500 | edge_port->bUartMode = v; |
| 2501 | else |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 2502 | dev_err(dev, "%s - uart_mode %d is invalid\n", __func__, v); |
Martin K. Petersen | fc4cbd7 | 2007-05-22 15:57:04 -0400 | [diff] [blame] | 2503 | |
| 2504 | return count; |
| 2505 | } |
| 2506 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2507 | static DEVICE_ATTR(uart_mode, S_IWUSR | S_IRUGO, show_uart_mode, |
| 2508 | store_uart_mode); |
Martin K. Petersen | fc4cbd7 | 2007-05-22 15:57:04 -0400 | [diff] [blame] | 2509 | |
| 2510 | static int edge_create_sysfs_attrs(struct usb_serial_port *port) |
| 2511 | { |
| 2512 | return device_create_file(&port->dev, &dev_attr_uart_mode); |
| 2513 | } |
| 2514 | |
| 2515 | static int edge_remove_sysfs_attrs(struct usb_serial_port *port) |
| 2516 | { |
| 2517 | device_remove_file(&port->dev, &dev_attr_uart_mode); |
| 2518 | return 0; |
| 2519 | } |
| 2520 | |
| 2521 | |
Greg Kroah-Hartman | ea65370 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 2522 | static struct usb_serial_driver edgeport_1port_device = { |
Greg Kroah-Hartman | 18fcac3 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 2523 | .driver = { |
Greg Kroah-Hartman | 269bda1 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 2524 | .owner = THIS_MODULE, |
| 2525 | .name = "edgeport_ti_1", |
Greg Kroah-Hartman | 18fcac3 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 2526 | }, |
Greg Kroah-Hartman | 269bda1 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 2527 | .description = "Edgeport TI 1 port adapter", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2528 | .id_table = edgeport_1port_id_table, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2529 | .num_ports = 1, |
| 2530 | .open = edge_open, |
| 2531 | .close = edge_close, |
| 2532 | .throttle = edge_throttle, |
| 2533 | .unthrottle = edge_unthrottle, |
| 2534 | .attach = edge_startup, |
Alan Stern | f9c99bb | 2009-06-02 11:53:55 -0400 | [diff] [blame] | 2535 | .disconnect = edge_disconnect, |
| 2536 | .release = edge_release, |
Johan Hovold | 0036153 | 2012-10-17 13:34:58 +0200 | [diff] [blame] | 2537 | .port_probe = edge_port_probe, |
| 2538 | .port_remove = edge_port_remove, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2539 | .ioctl = edge_ioctl, |
| 2540 | .set_termios = edge_set_termios, |
| 2541 | .tiocmget = edge_tiocmget, |
| 2542 | .tiocmset = edge_tiocmset, |
Johan Hovold | 48ee580 | 2013-03-21 12:37:10 +0100 | [diff] [blame] | 2543 | .tiocmiwait = usb_serial_generic_tiocmiwait, |
Johan Hovold | cf9a9d6 | 2013-03-21 12:37:09 +0100 | [diff] [blame] | 2544 | .get_icount = usb_serial_generic_get_icount, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2545 | .write = edge_write, |
| 2546 | .write_room = edge_write_room, |
| 2547 | .chars_in_buffer = edge_chars_in_buffer, |
Johan Hovold | b16634a | 2013-05-05 20:32:31 +0200 | [diff] [blame] | 2548 | .tx_empty = edge_tx_empty, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2549 | .break_ctl = edge_break, |
| 2550 | .read_int_callback = edge_interrupt_callback, |
| 2551 | .read_bulk_callback = edge_bulk_in_callback, |
| 2552 | .write_bulk_callback = edge_bulk_out_callback, |
| 2553 | }; |
| 2554 | |
Greg Kroah-Hartman | ea65370 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 2555 | static struct usb_serial_driver edgeport_2port_device = { |
Greg Kroah-Hartman | 18fcac3 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 2556 | .driver = { |
Greg Kroah-Hartman | 269bda1 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 2557 | .owner = THIS_MODULE, |
| 2558 | .name = "edgeport_ti_2", |
Greg Kroah-Hartman | 18fcac3 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 2559 | }, |
Greg Kroah-Hartman | 269bda1 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 2560 | .description = "Edgeport TI 2 port adapter", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2561 | .id_table = edgeport_2port_id_table, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2562 | .num_ports = 2, |
| 2563 | .open = edge_open, |
| 2564 | .close = edge_close, |
| 2565 | .throttle = edge_throttle, |
| 2566 | .unthrottle = edge_unthrottle, |
| 2567 | .attach = edge_startup, |
Alan Stern | f9c99bb | 2009-06-02 11:53:55 -0400 | [diff] [blame] | 2568 | .disconnect = edge_disconnect, |
| 2569 | .release = edge_release, |
Johan Hovold | 0036153 | 2012-10-17 13:34:58 +0200 | [diff] [blame] | 2570 | .port_probe = edge_port_probe, |
| 2571 | .port_remove = edge_port_remove, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2572 | .ioctl = edge_ioctl, |
| 2573 | .set_termios = edge_set_termios, |
| 2574 | .tiocmget = edge_tiocmget, |
| 2575 | .tiocmset = edge_tiocmset, |
Johan Hovold | 48ee580 | 2013-03-21 12:37:10 +0100 | [diff] [blame] | 2576 | .tiocmiwait = usb_serial_generic_tiocmiwait, |
Johan Hovold | cf9a9d6 | 2013-03-21 12:37:09 +0100 | [diff] [blame] | 2577 | .get_icount = usb_serial_generic_get_icount, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2578 | .write = edge_write, |
| 2579 | .write_room = edge_write_room, |
| 2580 | .chars_in_buffer = edge_chars_in_buffer, |
Johan Hovold | b16634a | 2013-05-05 20:32:31 +0200 | [diff] [blame] | 2581 | .tx_empty = edge_tx_empty, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2582 | .break_ctl = edge_break, |
| 2583 | .read_int_callback = edge_interrupt_callback, |
| 2584 | .read_bulk_callback = edge_bulk_in_callback, |
| 2585 | .write_bulk_callback = edge_bulk_out_callback, |
| 2586 | }; |
| 2587 | |
Alan Stern | 7dbe246 | 2012-02-23 14:56:57 -0500 | [diff] [blame] | 2588 | static struct usb_serial_driver * const serial_drivers[] = { |
| 2589 | &edgeport_1port_device, &edgeport_2port_device, NULL |
| 2590 | }; |
| 2591 | |
Greg Kroah-Hartman | 68e2411 | 2012-05-08 15:46:14 -0700 | [diff] [blame] | 2592 | module_usb_serial_driver(serial_drivers, id_table_combined); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2593 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2594 | MODULE_AUTHOR(DRIVER_AUTHOR); |
| 2595 | MODULE_DESCRIPTION(DRIVER_DESC); |
| 2596 | MODULE_LICENSE("GPL"); |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 2597 | MODULE_FIRMWARE("edgeport/down3.bin"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2598 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2599 | module_param(closing_wait, int, S_IRUGO | S_IWUSR); |
| 2600 | MODULE_PARM_DESC(closing_wait, "Maximum wait for data to drain, in .01 secs"); |
| 2601 | |
| 2602 | module_param(ignore_cpu_rev, bool, S_IRUGO | S_IWUSR); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2603 | MODULE_PARM_DESC(ignore_cpu_rev, |
| 2604 | "Ignore the cpu revision when connecting to a device"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2605 | |
Martin K. Petersen | fc4cbd7 | 2007-05-22 15:57:04 -0400 | [diff] [blame] | 2606 | module_param(default_uart_mode, int, S_IRUGO | S_IWUSR); |
| 2607 | MODULE_PARM_DESC(default_uart_mode, "Default uart_mode, 0=RS232, ..."); |