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); |
Johan Hovold | 10c642d | 2013-12-29 19:22:56 +0100 | [diff] [blame^] | 367 | if (!temp) |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 368 | return -ENOMEM; |
Johan Hovold | 10c642d | 2013-12-29 19:22:56 +0100 | [diff] [blame^] | 369 | |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 370 | status = read_boot_mem(serial, 0, 1, temp); |
| 371 | kfree(temp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 372 | if (status) |
| 373 | return status; |
| 374 | } |
| 375 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 376 | for (i = 0; i < length; ++i) { |
| 377 | status = ti_vsend_sync(serial->serial->dev, |
| 378 | UMPC_MEMORY_WRITE, buffer[i], |
| 379 | (__u16)(i + start_address), NULL, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 380 | if (status) |
| 381 | return status; |
| 382 | } |
| 383 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 384 | 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] | 385 | usb_serial_debug_data(&serial->serial->dev->dev, __func__, length, buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 386 | |
| 387 | return status; |
| 388 | } |
| 389 | |
| 390 | |
| 391 | /* Write edgeport I2C memory to TI chip */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 392 | static int write_i2c_mem(struct edgeport_serial *serial, |
| 393 | int start_address, int length, __u8 address_type, __u8 *buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 394 | { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 395 | struct device *dev = &serial->serial->dev->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 396 | int status = 0; |
| 397 | int write_length; |
| 398 | __be16 be_start_address; |
| 399 | |
| 400 | /* 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] | 401 | |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 402 | /* calculate the number of bytes left in the first page */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 403 | write_length = EPROM_PAGE_SIZE - |
| 404 | (start_address & (EPROM_PAGE_SIZE - 1)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 405 | |
| 406 | if (write_length > length) |
| 407 | write_length = length; |
| 408 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 409 | dev_dbg(dev, "%s - BytesInFirstPage Addr = %x, length = %d\n", |
| 410 | __func__, start_address, write_length); |
Greg Kroah-Hartman | 59d33f2 | 2012-09-18 09:58:57 +0100 | [diff] [blame] | 411 | usb_serial_debug_data(dev, __func__, write_length, buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 412 | |
| 413 | /* Write first page */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 414 | be_start_address = cpu_to_be16(start_address); |
| 415 | status = ti_vsend_sync(serial->serial->dev, |
| 416 | UMPC_MEMORY_WRITE, (__u16)address_type, |
| 417 | (__force __u16)be_start_address, |
| 418 | buffer, write_length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 419 | if (status) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 420 | dev_dbg(dev, "%s - ERROR %d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 421 | return status; |
| 422 | } |
| 423 | |
| 424 | length -= write_length; |
| 425 | start_address += write_length; |
| 426 | buffer += write_length; |
| 427 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 428 | /* We should be aligned now -- can write |
| 429 | max page size bytes at a time */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 430 | while (length) { |
| 431 | if (length > EPROM_PAGE_SIZE) |
| 432 | write_length = EPROM_PAGE_SIZE; |
| 433 | else |
| 434 | write_length = length; |
| 435 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 436 | dev_dbg(dev, "%s - Page Write Addr = %x, length = %d\n", |
| 437 | __func__, start_address, write_length); |
Greg Kroah-Hartman | 59d33f2 | 2012-09-18 09:58:57 +0100 | [diff] [blame] | 438 | usb_serial_debug_data(dev, __func__, write_length, buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 439 | |
| 440 | /* Write next page */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 441 | be_start_address = cpu_to_be16(start_address); |
| 442 | status = ti_vsend_sync(serial->serial->dev, UMPC_MEMORY_WRITE, |
| 443 | (__u16)address_type, |
| 444 | (__force __u16)be_start_address, |
| 445 | buffer, write_length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 446 | if (status) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 447 | dev_err(dev, "%s - ERROR %d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 448 | return status; |
| 449 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 450 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 451 | length -= write_length; |
| 452 | start_address += write_length; |
| 453 | buffer += write_length; |
| 454 | } |
| 455 | return status; |
| 456 | } |
| 457 | |
| 458 | /* Examine the UMP DMA registers and LSR |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 459 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 460 | * Check the MSBit of the X and Y DMA byte count registers. |
| 461 | * A zero in this bit indicates that the TX DMA buffers are empty |
| 462 | * then check the TX Empty bit in the UART. |
| 463 | */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 464 | static int tx_active(struct edgeport_port *port) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 465 | { |
| 466 | int status; |
| 467 | struct out_endpoint_desc_block *oedb; |
| 468 | __u8 *lsr; |
| 469 | int bytes_left = 0; |
| 470 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 471 | oedb = kmalloc(sizeof(*oedb), GFP_KERNEL); |
Johan Hovold | 10c642d | 2013-12-29 19:22:56 +0100 | [diff] [blame^] | 472 | if (!oedb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 473 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 474 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 475 | lsr = kmalloc(1, GFP_KERNEL); /* Sigh, that's right, just one byte, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 476 | as not all platforms can do DMA |
| 477 | from stack */ |
| 478 | if (!lsr) { |
| 479 | kfree(oedb); |
| 480 | return -ENOMEM; |
| 481 | } |
| 482 | /* Read the DMA Count Registers */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 483 | status = read_ram(port->port->serial->dev, port->dma_address, |
| 484 | sizeof(*oedb), (void *)oedb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 485 | if (status) |
| 486 | goto exit_is_tx_active; |
| 487 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 488 | 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] | 489 | |
| 490 | /* and the LSR */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 491 | status = read_ram(port->port->serial->dev, |
| 492 | port->uart_base + UMPMEM_OFFS_UART_LSR, 1, lsr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 493 | |
| 494 | if (status) |
| 495 | goto exit_is_tx_active; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 496 | dev_dbg(&port->port->dev, "%s - LSR = 0x%X\n", __func__, *lsr); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 497 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 498 | /* If either buffer has data or we are transmitting then return TRUE */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 499 | if ((oedb->XByteCount & 0x80) != 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 500 | bytes_left += 64; |
| 501 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 502 | if ((*lsr & UMP_UART_LSR_TX_MASK) == 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 503 | bytes_left += 1; |
| 504 | |
| 505 | /* We return Not Active if we get any kind of error */ |
| 506 | exit_is_tx_active: |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 507 | dev_dbg(&port->port->dev, "%s - return %d\n", __func__, bytes_left); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 508 | |
| 509 | kfree(lsr); |
| 510 | kfree(oedb); |
| 511 | return bytes_left; |
| 512 | } |
| 513 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 514 | static int choose_config(struct usb_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 515 | { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 516 | /* |
| 517 | * There may be multiple configurations on this device, in which case |
| 518 | * we would need to read and parse all of them to find out which one |
| 519 | * we want. However, we just support one config at this point, |
| 520 | * configuration # 1, which is Config Descriptor 0. |
| 521 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 522 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 523 | dev_dbg(&dev->dev, "%s - Number of Interfaces = %d\n", |
| 524 | __func__, dev->config->desc.bNumInterfaces); |
| 525 | dev_dbg(&dev->dev, "%s - MAX Power = %d\n", |
| 526 | __func__, dev->config->desc.bMaxPower * 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 527 | |
| 528 | if (dev->config->desc.bNumInterfaces != 1) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 529 | dev_err(&dev->dev, "%s - bNumInterfaces is not 1, ERROR!\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 530 | return -ENODEV; |
| 531 | } |
| 532 | |
| 533 | return 0; |
| 534 | } |
| 535 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 536 | static int read_rom(struct edgeport_serial *serial, |
| 537 | int start_address, int length, __u8 *buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 538 | { |
| 539 | int status; |
| 540 | |
| 541 | if (serial->product_info.TiMode == TI_MODE_DOWNLOAD) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 542 | status = read_download_mem(serial->serial->dev, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 543 | start_address, |
| 544 | length, |
| 545 | serial->TI_I2C_Type, |
| 546 | buffer); |
| 547 | } else { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 548 | status = read_boot_mem(serial, start_address, length, |
| 549 | buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 550 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 551 | return status; |
| 552 | } |
| 553 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 554 | static int write_rom(struct edgeport_serial *serial, int start_address, |
| 555 | int length, __u8 *buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 556 | { |
| 557 | if (serial->product_info.TiMode == TI_MODE_BOOT) |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 558 | return write_boot_mem(serial, start_address, length, |
| 559 | buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 560 | |
| 561 | if (serial->product_info.TiMode == TI_MODE_DOWNLOAD) |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 562 | return write_i2c_mem(serial, start_address, length, |
| 563 | serial->TI_I2C_Type, buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 564 | return -EINVAL; |
| 565 | } |
| 566 | |
| 567 | |
| 568 | |
| 569 | /* Read a descriptor header from I2C based on type */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 570 | static int get_descriptor_addr(struct edgeport_serial *serial, |
| 571 | int desc_type, struct ti_i2c_desc *rom_desc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 572 | { |
| 573 | int start_address; |
| 574 | int status; |
| 575 | |
| 576 | /* Search for requested descriptor in I2C */ |
| 577 | start_address = 2; |
| 578 | do { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 579 | status = read_rom(serial, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 580 | start_address, |
| 581 | sizeof(struct ti_i2c_desc), |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 582 | (__u8 *)rom_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 583 | if (status) |
| 584 | return 0; |
| 585 | |
| 586 | if (rom_desc->Type == desc_type) |
| 587 | return start_address; |
| 588 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 589 | start_address = start_address + sizeof(struct ti_i2c_desc) |
| 590 | + rom_desc->Size; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 591 | |
| 592 | } while ((start_address < TI_MAX_I2C_SIZE) && rom_desc->Type); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 593 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 594 | return 0; |
| 595 | } |
| 596 | |
| 597 | /* Validate descriptor checksum */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 598 | static int valid_csum(struct ti_i2c_desc *rom_desc, __u8 *buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 599 | { |
| 600 | __u16 i; |
| 601 | __u8 cs = 0; |
| 602 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 603 | for (i = 0; i < rom_desc->Size; i++) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 604 | cs = (__u8)(cs + buffer[i]); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 605 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 606 | if (cs != rom_desc->CheckSum) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 607 | pr_debug("%s - Mismatch %x - %x", __func__, rom_desc->CheckSum, cs); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 608 | return -EINVAL; |
| 609 | } |
| 610 | return 0; |
| 611 | } |
| 612 | |
| 613 | /* Make sure that the I2C image is good */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 614 | static int check_i2c_image(struct edgeport_serial *serial) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 615 | { |
| 616 | struct device *dev = &serial->serial->dev->dev; |
| 617 | int status = 0; |
| 618 | struct ti_i2c_desc *rom_desc; |
| 619 | int start_address = 2; |
| 620 | __u8 *buffer; |
| 621 | __u16 ttype; |
| 622 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 623 | rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL); |
Johan Hovold | 10c642d | 2013-12-29 19:22:56 +0100 | [diff] [blame^] | 624 | if (!rom_desc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 625 | return -ENOMEM; |
Johan Hovold | 10c642d | 2013-12-29 19:22:56 +0100 | [diff] [blame^] | 626 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 627 | buffer = kmalloc(TI_MAX_I2C_SIZE, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 628 | if (!buffer) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 629 | kfree(rom_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 630 | return -ENOMEM; |
| 631 | } |
| 632 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 633 | /* Read the first byte (Signature0) must be 0x52 or 0x10 */ |
| 634 | status = read_rom(serial, 0, 1, buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 635 | if (status) |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 636 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 637 | |
| 638 | if (*buffer != UMP5152 && *buffer != UMP3410) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 639 | dev_err(dev, "%s - invalid buffer signature\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 640 | status = -ENODEV; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 641 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 642 | } |
| 643 | |
| 644 | do { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 645 | /* Validate the I2C */ |
| 646 | status = read_rom(serial, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 647 | start_address, |
| 648 | sizeof(struct ti_i2c_desc), |
| 649 | (__u8 *)rom_desc); |
| 650 | if (status) |
| 651 | break; |
| 652 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 653 | if ((start_address + sizeof(struct ti_i2c_desc) + |
| 654 | rom_desc->Size) > TI_MAX_I2C_SIZE) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 655 | status = -ENODEV; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 656 | dev_dbg(dev, "%s - structure too big, erroring out.\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 657 | break; |
| 658 | } |
| 659 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 660 | dev_dbg(dev, "%s Type = 0x%x\n", __func__, rom_desc->Type); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 661 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 662 | /* Skip type 2 record */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 663 | ttype = rom_desc->Type & 0x0f; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 664 | if (ttype != I2C_DESC_TYPE_FIRMWARE_BASIC |
| 665 | && ttype != I2C_DESC_TYPE_FIRMWARE_AUTO) { |
| 666 | /* Read the descriptor data */ |
| 667 | status = read_rom(serial, start_address + |
| 668 | sizeof(struct ti_i2c_desc), |
| 669 | rom_desc->Size, buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 670 | if (status) |
| 671 | break; |
| 672 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 673 | status = valid_csum(rom_desc, buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 674 | if (status) |
| 675 | break; |
| 676 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 677 | start_address = start_address + sizeof(struct ti_i2c_desc) + |
| 678 | rom_desc->Size; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 679 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 680 | } while ((rom_desc->Type != I2C_DESC_TYPE_ION) && |
| 681 | (start_address < TI_MAX_I2C_SIZE)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 682 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 683 | if ((rom_desc->Type != I2C_DESC_TYPE_ION) || |
| 684 | (start_address > TI_MAX_I2C_SIZE)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 685 | status = -ENODEV; |
| 686 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 687 | out: |
| 688 | kfree(buffer); |
| 689 | kfree(rom_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 690 | return status; |
| 691 | } |
| 692 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 693 | static int get_manuf_info(struct edgeport_serial *serial, __u8 *buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 694 | { |
| 695 | int status; |
| 696 | int start_address; |
| 697 | struct ti_i2c_desc *rom_desc; |
| 698 | struct edge_ti_manuf_descriptor *desc; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 699 | struct device *dev = &serial->serial->dev->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 700 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 701 | rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL); |
Johan Hovold | 10c642d | 2013-12-29 19:22:56 +0100 | [diff] [blame^] | 702 | if (!rom_desc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 703 | return -ENOMEM; |
Johan Hovold | 10c642d | 2013-12-29 19:22:56 +0100 | [diff] [blame^] | 704 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 705 | start_address = get_descriptor_addr(serial, I2C_DESC_TYPE_ION, |
| 706 | rom_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 707 | |
| 708 | if (!start_address) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 709 | dev_dbg(dev, "%s - Edge Descriptor not found in I2C\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 710 | status = -ENODEV; |
| 711 | goto exit; |
| 712 | } |
| 713 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 714 | /* Read the descriptor data */ |
| 715 | status = read_rom(serial, start_address+sizeof(struct ti_i2c_desc), |
| 716 | rom_desc->Size, buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 717 | if (status) |
| 718 | goto exit; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 719 | |
| 720 | status = valid_csum(rom_desc, buffer); |
| 721 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 722 | desc = (struct edge_ti_manuf_descriptor *)buffer; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 723 | dev_dbg(dev, "%s - IonConfig 0x%x\n", __func__, desc->IonConfig); |
| 724 | dev_dbg(dev, "%s - Version %d\n", __func__, desc->Version); |
| 725 | dev_dbg(dev, "%s - Cpu/Board 0x%x\n", __func__, desc->CpuRev_BoardRev); |
| 726 | dev_dbg(dev, "%s - NumPorts %d\n", __func__, desc->NumPorts); |
| 727 | dev_dbg(dev, "%s - NumVirtualPorts %d\n", __func__, desc->NumVirtualPorts); |
| 728 | dev_dbg(dev, "%s - TotalPorts %d\n", __func__, desc->TotalPorts); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 729 | |
| 730 | exit: |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 731 | kfree(rom_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 732 | return status; |
| 733 | } |
| 734 | |
| 735 | /* Build firmware header used for firmware update */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 736 | static int build_i2c_fw_hdr(__u8 *header, struct device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 737 | { |
| 738 | __u8 *buffer; |
| 739 | int buffer_size; |
| 740 | int i; |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 741 | int err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 742 | __u8 cs = 0; |
| 743 | struct ti_i2c_desc *i2c_header; |
| 744 | struct ti_i2c_image_header *img_header; |
| 745 | struct ti_i2c_firmware_rec *firmware_rec; |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 746 | const struct firmware *fw; |
| 747 | const char *fw_name = "edgeport/down3.bin"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 748 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 749 | /* In order to update the I2C firmware we must change the type 2 record |
| 750 | * to type 0xF2. This will force the UMP to come up in Boot Mode. |
| 751 | * Then while in boot mode, the driver will download the latest |
| 752 | * firmware (padded to 15.5k) into the UMP ram. And finally when the |
| 753 | * device comes back up in download mode the driver will cause the new |
| 754 | * firmware to be copied from the UMP Ram to I2C and the firmware will |
| 755 | * update the record type from 0xf2 to 0x02. |
| 756 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 757 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 758 | /* Allocate a 15.5k buffer + 2 bytes for version number |
| 759 | * (Firmware Record) */ |
| 760 | buffer_size = (((1024 * 16) - 512 ) + |
| 761 | sizeof(struct ti_i2c_firmware_rec)); |
| 762 | |
| 763 | buffer = kmalloc(buffer_size, GFP_KERNEL); |
Johan Hovold | 10c642d | 2013-12-29 19:22:56 +0100 | [diff] [blame^] | 764 | if (!buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 765 | return -ENOMEM; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 766 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 767 | // Set entire image of 0xffs |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 768 | memset(buffer, 0xff, buffer_size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 769 | |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 770 | err = request_firmware(&fw, fw_name, dev); |
| 771 | if (err) { |
Greg Kroah-Hartman | d9bb03d | 2012-09-18 16:59:23 +0100 | [diff] [blame] | 772 | dev_err(dev, "Failed to load image \"%s\" err %d\n", |
| 773 | fw_name, err); |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 774 | kfree(buffer); |
| 775 | return err; |
| 776 | } |
| 777 | |
| 778 | /* Save Download Version Number */ |
| 779 | OperationalMajorVersion = fw->data[0]; |
| 780 | OperationalMinorVersion = fw->data[1]; |
| 781 | OperationalBuildNumber = fw->data[2] | (fw->data[3] << 8); |
| 782 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 783 | /* Copy version number into firmware record */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 784 | firmware_rec = (struct ti_i2c_firmware_rec *)buffer; |
| 785 | |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 786 | firmware_rec->Ver_Major = OperationalMajorVersion; |
| 787 | firmware_rec->Ver_Minor = OperationalMinorVersion; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 788 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 789 | /* Pointer to fw_down memory image */ |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 790 | img_header = (struct ti_i2c_image_header *)&fw->data[4]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 791 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 792 | memcpy(buffer + sizeof(struct ti_i2c_firmware_rec), |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 793 | &fw->data[4 + sizeof(struct ti_i2c_image_header)], |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 794 | le16_to_cpu(img_header->Length)); |
| 795 | |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 796 | release_firmware(fw); |
| 797 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 798 | for (i=0; i < buffer_size; i++) { |
| 799 | cs = (__u8)(cs + buffer[i]); |
| 800 | } |
| 801 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 802 | kfree(buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 803 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 804 | /* Build new header */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 805 | i2c_header = (struct ti_i2c_desc *)header; |
| 806 | firmware_rec = (struct ti_i2c_firmware_rec*)i2c_header->Data; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 807 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 808 | i2c_header->Type = I2C_DESC_TYPE_FIRMWARE_BLANK; |
| 809 | i2c_header->Size = (__u16)buffer_size; |
| 810 | i2c_header->CheckSum = cs; |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 811 | firmware_rec->Ver_Major = OperationalMajorVersion; |
| 812 | firmware_rec->Ver_Minor = OperationalMinorVersion; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 813 | |
| 814 | return 0; |
| 815 | } |
| 816 | |
| 817 | /* Try to figure out what type of I2c we have */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 818 | static int i2c_type_bootmode(struct edgeport_serial *serial) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 819 | { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 820 | struct device *dev = &serial->serial->dev->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 821 | int status; |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 822 | u8 *data; |
| 823 | |
| 824 | data = kmalloc(1, GFP_KERNEL); |
Johan Hovold | 10c642d | 2013-12-29 19:22:56 +0100 | [diff] [blame^] | 825 | if (!data) |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 826 | return -ENOMEM; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 827 | |
| 828 | /* Try to read type 2 */ |
| 829 | status = ti_vread_sync(serial->serial->dev, UMPC_MEMORY_READ, |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 830 | DTK_ADDR_SPACE_I2C_TYPE_II, 0, data, 0x01); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 831 | if (status) |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 832 | dev_dbg(dev, "%s - read 2 status error = %d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 833 | else |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 834 | dev_dbg(dev, "%s - read 2 data = 0x%x\n", __func__, *data); |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 835 | if ((!status) && (*data == UMP5152 || *data == UMP3410)) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 836 | dev_dbg(dev, "%s - ROM_TYPE_II\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 837 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 838 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 839 | } |
| 840 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 841 | /* Try to read type 3 */ |
| 842 | status = ti_vread_sync(serial->serial->dev, UMPC_MEMORY_READ, |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 843 | DTK_ADDR_SPACE_I2C_TYPE_III, 0, data, 0x01); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 844 | if (status) |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 845 | dev_dbg(dev, "%s - read 3 status error = %d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 846 | else |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 847 | dev_dbg(dev, "%s - read 2 data = 0x%x\n", __func__, *data); |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 848 | if ((!status) && (*data == UMP5152 || *data == UMP3410)) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 849 | dev_dbg(dev, "%s - ROM_TYPE_III\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 850 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_III; |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 851 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 852 | } |
| 853 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 854 | dev_dbg(dev, "%s - Unknown\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 855 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 856 | status = -ENODEV; |
| 857 | out: |
| 858 | kfree(data); |
| 859 | return status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 860 | } |
| 861 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 862 | static int bulk_xfer(struct usb_serial *serial, void *buffer, |
| 863 | int length, int *num_sent) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 864 | { |
| 865 | int status; |
| 866 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 867 | status = usb_bulk_msg(serial->dev, |
| 868 | usb_sndbulkpipe(serial->dev, |
| 869 | serial->port[0]->bulk_out_endpointAddress), |
| 870 | buffer, length, num_sent, 1000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 871 | return status; |
| 872 | } |
| 873 | |
| 874 | /* Download given firmware image to the device (IN BOOT MODE) */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 875 | static int download_code(struct edgeport_serial *serial, __u8 *image, |
| 876 | int image_length) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 877 | { |
| 878 | int status = 0; |
| 879 | int pos; |
| 880 | int transfer; |
| 881 | int done; |
| 882 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 883 | /* Transfer firmware image */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 884 | for (pos = 0; pos < image_length; ) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 885 | /* Read the next buffer from file */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 886 | transfer = image_length - pos; |
| 887 | if (transfer > EDGE_FW_BULK_MAX_PACKET_SIZE) |
| 888 | transfer = EDGE_FW_BULK_MAX_PACKET_SIZE; |
| 889 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 890 | /* Transfer data */ |
| 891 | status = bulk_xfer(serial->serial, &image[pos], |
| 892 | transfer, &done); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 893 | if (status) |
| 894 | break; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 895 | /* Advance buffer pointer */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 896 | pos += done; |
| 897 | } |
| 898 | |
| 899 | return status; |
| 900 | } |
| 901 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 902 | /* FIXME!!! */ |
| 903 | static int config_boot_dev(struct usb_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 904 | { |
| 905 | return 0; |
| 906 | } |
| 907 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 908 | static int ti_cpu_rev(struct edge_ti_manuf_descriptor *desc) |
| 909 | { |
| 910 | return TI_GET_CPU_REVISION(desc->CpuRev_BoardRev); |
| 911 | } |
| 912 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 913 | /** |
| 914 | * DownloadTIFirmware - Download run-time operating firmware to the TI5052 |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 915 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 916 | * This routine downloads the main operating code into the TI5052, using the |
| 917 | * boot code already burned into E2PROM or ROM. |
| 918 | */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 919 | static int download_fw(struct edgeport_serial *serial) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 920 | { |
| 921 | struct device *dev = &serial->serial->dev->dev; |
| 922 | int status = 0; |
| 923 | int start_address; |
| 924 | struct edge_ti_manuf_descriptor *ti_manuf_desc; |
| 925 | struct usb_interface_descriptor *interface; |
| 926 | int download_cur_ver; |
| 927 | int download_new_ver; |
| 928 | |
| 929 | /* This routine is entered by both the BOOT mode and the Download mode |
| 930 | * We can determine which code is running by the reading the config |
| 931 | * descriptor and if we have only one bulk pipe it is in boot mode |
| 932 | */ |
| 933 | serial->product_info.hardware_type = HARDWARE_TYPE_TIUMP; |
| 934 | |
| 935 | /* Default to type 2 i2c */ |
| 936 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; |
| 937 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 938 | status = choose_config(serial->serial->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 939 | if (status) |
| 940 | return status; |
| 941 | |
| 942 | interface = &serial->serial->interface->cur_altsetting->desc; |
| 943 | if (!interface) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 944 | dev_err(dev, "%s - no interface set, error!\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 945 | return -ENODEV; |
| 946 | } |
| 947 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 948 | /* |
| 949 | * Setup initial mode -- the default mode 0 is TI_MODE_CONFIGURING |
| 950 | * if we have more than one endpoint we are definitely in download |
| 951 | * mode |
| 952 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 953 | if (interface->bNumEndpoints > 1) |
| 954 | serial->product_info.TiMode = TI_MODE_DOWNLOAD; |
| 955 | else |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 956 | /* Otherwise we will remain in configuring mode */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 957 | serial->product_info.TiMode = TI_MODE_CONFIGURING; |
| 958 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 959 | /********************************************************************/ |
| 960 | /* Download Mode */ |
| 961 | /********************************************************************/ |
| 962 | if (serial->product_info.TiMode == TI_MODE_DOWNLOAD) { |
| 963 | struct ti_i2c_desc *rom_desc; |
| 964 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 965 | dev_dbg(dev, "%s - RUNNING IN DOWNLOAD MODE\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 966 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 967 | status = check_i2c_image(serial); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 968 | if (status) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 969 | dev_dbg(dev, "%s - DOWNLOAD MODE -- BAD I2C\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 970 | return status; |
| 971 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 972 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 973 | /* Validate Hardware version number |
| 974 | * Read Manufacturing Descriptor from TI Based Edgeport |
| 975 | */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 976 | ti_manuf_desc = kmalloc(sizeof(*ti_manuf_desc), GFP_KERNEL); |
Johan Hovold | 10c642d | 2013-12-29 19:22:56 +0100 | [diff] [blame^] | 977 | if (!ti_manuf_desc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 978 | return -ENOMEM; |
Johan Hovold | 10c642d | 2013-12-29 19:22:56 +0100 | [diff] [blame^] | 979 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 980 | status = get_manuf_info(serial, (__u8 *)ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 981 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 982 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 983 | return status; |
| 984 | } |
| 985 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 986 | /* Check version number of ION descriptor */ |
| 987 | if (!ignore_cpu_rev && ti_cpu_rev(ti_manuf_desc) < 2) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 988 | dev_dbg(dev, "%s - Wrong CPU Rev %d (Must be 2)\n", |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 989 | __func__, ti_cpu_rev(ti_manuf_desc)); |
| 990 | kfree(ti_manuf_desc); |
| 991 | return -EINVAL; |
| 992 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 993 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 994 | rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 995 | if (!rom_desc) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 996 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 997 | return -ENOMEM; |
| 998 | } |
| 999 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1000 | /* Search for type 2 record (firmware record) */ |
| 1001 | start_address = get_descriptor_addr(serial, |
| 1002 | I2C_DESC_TYPE_FIRMWARE_BASIC, rom_desc); |
| 1003 | if (start_address != 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1004 | struct ti_i2c_firmware_rec *firmware_version; |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 1005 | u8 *record; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1006 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1007 | dev_dbg(dev, "%s - Found Type FIRMWARE (Type 2) record\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1008 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1009 | firmware_version = kmalloc(sizeof(*firmware_version), |
| 1010 | GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1011 | if (!firmware_version) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1012 | kfree(rom_desc); |
| 1013 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1014 | return -ENOMEM; |
| 1015 | } |
| 1016 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1017 | /* Validate version number |
| 1018 | * Read the descriptor data |
| 1019 | */ |
| 1020 | status = read_rom(serial, start_address + |
| 1021 | sizeof(struct ti_i2c_desc), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1022 | sizeof(struct ti_i2c_firmware_rec), |
| 1023 | (__u8 *)firmware_version); |
| 1024 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1025 | kfree(firmware_version); |
| 1026 | kfree(rom_desc); |
| 1027 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1028 | return status; |
| 1029 | } |
| 1030 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1031 | /* Check version number of download with current |
| 1032 | version in I2c */ |
| 1033 | download_cur_ver = (firmware_version->Ver_Major << 8) + |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1034 | (firmware_version->Ver_Minor); |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 1035 | download_new_ver = (OperationalMajorVersion << 8) + |
| 1036 | (OperationalMinorVersion); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1037 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1038 | dev_dbg(dev, "%s - >> FW Versions Device %d.%d Driver %d.%d\n", |
| 1039 | __func__, firmware_version->Ver_Major, |
| 1040 | firmware_version->Ver_Minor, |
| 1041 | OperationalMajorVersion, |
| 1042 | OperationalMinorVersion); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1043 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1044 | /* Check if we have an old version in the I2C and |
| 1045 | update if necessary */ |
Greg Kroah-Hartman | 0827a9f | 2010-08-17 15:15:37 -0700 | [diff] [blame] | 1046 | if (download_cur_ver < download_new_ver) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1047 | dev_dbg(dev, "%s - Update I2C dld from %d.%d to %d.%d\n", |
| 1048 | __func__, |
| 1049 | firmware_version->Ver_Major, |
| 1050 | firmware_version->Ver_Minor, |
| 1051 | OperationalMajorVersion, |
| 1052 | OperationalMinorVersion); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1053 | |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 1054 | record = kmalloc(1, GFP_KERNEL); |
| 1055 | if (!record) { |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 1056 | kfree(firmware_version); |
| 1057 | kfree(rom_desc); |
| 1058 | kfree(ti_manuf_desc); |
| 1059 | return -ENOMEM; |
| 1060 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1061 | /* In order to update the I2C firmware we must |
| 1062 | * change the type 2 record to type 0xF2. This |
| 1063 | * will force the UMP to come up in Boot Mode. |
| 1064 | * Then while in boot mode, the driver will |
| 1065 | * download the latest firmware (padded to |
| 1066 | * 15.5k) into the UMP ram. Finally when the |
| 1067 | * device comes back up in download mode the |
| 1068 | * driver will cause the new firmware to be |
| 1069 | * copied from the UMP Ram to I2C and the |
| 1070 | * firmware will update the record type from |
| 1071 | * 0xf2 to 0x02. |
| 1072 | */ |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 1073 | *record = I2C_DESC_TYPE_FIRMWARE_BLANK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1074 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1075 | /* Change the I2C Firmware record type to |
| 1076 | 0xf2 to trigger an update */ |
| 1077 | status = write_rom(serial, start_address, |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 1078 | sizeof(*record), record); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1079 | if (status) { |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 1080 | kfree(record); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1081 | kfree(firmware_version); |
| 1082 | kfree(rom_desc); |
| 1083 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1084 | return status; |
| 1085 | } |
| 1086 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1087 | /* verify the write -- must do this in order |
| 1088 | * for write to complete before we do the |
| 1089 | * hardware reset |
| 1090 | */ |
| 1091 | status = read_rom(serial, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1092 | start_address, |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 1093 | sizeof(*record), |
| 1094 | record); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1095 | if (status) { |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 1096 | kfree(record); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1097 | kfree(firmware_version); |
| 1098 | kfree(rom_desc); |
| 1099 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1100 | return status; |
| 1101 | } |
| 1102 | |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 1103 | if (*record != I2C_DESC_TYPE_FIRMWARE_BLANK) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1104 | dev_err(dev, "%s - error resetting device\n", __func__); |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 1105 | kfree(record); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1106 | kfree(firmware_version); |
| 1107 | kfree(rom_desc); |
| 1108 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1109 | return -ENODEV; |
| 1110 | } |
| 1111 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1112 | dev_dbg(dev, "%s - HARDWARE RESET\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1113 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1114 | /* Reset UMP -- Back to BOOT MODE */ |
| 1115 | status = ti_vsend_sync(serial->serial->dev, |
| 1116 | UMPC_HARDWARE_RESET, |
| 1117 | 0, 0, NULL, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1118 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1119 | dev_dbg(dev, "%s - HARDWARE RESET return %d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1120 | |
| 1121 | /* return an error on purpose. */ |
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 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1128 | kfree(firmware_version); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1129 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1130 | /* Search for type 0xF2 record (firmware blank record) */ |
| 1131 | else if ((start_address = get_descriptor_addr(serial, I2C_DESC_TYPE_FIRMWARE_BLANK, rom_desc)) != 0) { |
| 1132 | #define HEADER_SIZE (sizeof(struct ti_i2c_desc) + \ |
| 1133 | sizeof(struct ti_i2c_firmware_rec)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1134 | __u8 *header; |
| 1135 | __u8 *vheader; |
| 1136 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1137 | header = kmalloc(HEADER_SIZE, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1138 | if (!header) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1139 | kfree(rom_desc); |
| 1140 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1141 | return -ENOMEM; |
| 1142 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1143 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1144 | vheader = kmalloc(HEADER_SIZE, GFP_KERNEL); |
| 1145 | if (!vheader) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1146 | kfree(header); |
| 1147 | kfree(rom_desc); |
| 1148 | kfree(ti_manuf_desc); |
| 1149 | return -ENOMEM; |
| 1150 | } |
| 1151 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1152 | 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] | 1153 | |
| 1154 | /* |
| 1155 | * In order to update the I2C firmware we must change |
| 1156 | * the type 2 record to type 0xF2. This will force the |
| 1157 | * UMP to come up in Boot Mode. Then while in boot |
| 1158 | * mode, the driver will download the latest firmware |
| 1159 | * (padded to 15.5k) into the UMP ram. Finally when the |
| 1160 | * device comes back up in download mode the driver |
| 1161 | * will cause the new firmware to be copied from the |
| 1162 | * UMP Ram to I2C and the firmware will update the |
| 1163 | * record type from 0xf2 to 0x02. |
| 1164 | */ |
| 1165 | status = build_i2c_fw_hdr(header, dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1166 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1167 | kfree(vheader); |
| 1168 | kfree(header); |
| 1169 | kfree(rom_desc); |
| 1170 | kfree(ti_manuf_desc); |
Roel Kluin | fd6e5bb | 2010-08-10 14:29:19 -0700 | [diff] [blame] | 1171 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1172 | } |
| 1173 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1174 | /* Update I2C with type 0xf2 record with correct |
| 1175 | size and checksum */ |
| 1176 | status = write_rom(serial, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1177 | start_address, |
| 1178 | HEADER_SIZE, |
| 1179 | header); |
| 1180 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1181 | kfree(vheader); |
| 1182 | kfree(header); |
| 1183 | kfree(rom_desc); |
| 1184 | kfree(ti_manuf_desc); |
Roel Kluin | 9800eb3 | 2010-07-20 15:29:08 -0700 | [diff] [blame] | 1185 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1186 | } |
| 1187 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1188 | /* verify the write -- must do this in order for |
| 1189 | write to complete before we do the hardware reset */ |
| 1190 | status = read_rom(serial, start_address, |
| 1191 | HEADER_SIZE, vheader); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1192 | |
| 1193 | if (status) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1194 | dev_dbg(dev, "%s - can't read header back\n", __func__); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1195 | kfree(vheader); |
| 1196 | kfree(header); |
| 1197 | kfree(rom_desc); |
| 1198 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1199 | return status; |
| 1200 | } |
| 1201 | if (memcmp(vheader, header, HEADER_SIZE)) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1202 | dev_dbg(dev, "%s - write download record failed\n", __func__); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1203 | kfree(vheader); |
| 1204 | kfree(header); |
| 1205 | kfree(rom_desc); |
| 1206 | kfree(ti_manuf_desc); |
Roel Kluin | 1e29709 | 2010-07-02 00:36:43 +0200 | [diff] [blame] | 1207 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1208 | } |
| 1209 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1210 | kfree(vheader); |
| 1211 | kfree(header); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1212 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1213 | dev_dbg(dev, "%s - Start firmware update\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1214 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1215 | /* Tell firmware to copy download image into I2C */ |
| 1216 | status = ti_vsend_sync(serial->serial->dev, |
| 1217 | UMPC_COPY_DNLD_TO_I2C, 0, 0, NULL, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1218 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1219 | dev_dbg(dev, "%s - Update complete 0x%x\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1220 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1221 | dev_err(dev, |
| 1222 | "%s - UMPC_COPY_DNLD_TO_I2C failed\n", |
| 1223 | __func__); |
| 1224 | kfree(rom_desc); |
| 1225 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1226 | return status; |
| 1227 | } |
| 1228 | } |
| 1229 | |
| 1230 | // The device is running the download code |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1231 | kfree(rom_desc); |
| 1232 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1233 | return 0; |
| 1234 | } |
| 1235 | |
| 1236 | /********************************************************************/ |
| 1237 | /* Boot Mode */ |
| 1238 | /********************************************************************/ |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1239 | dev_dbg(dev, "%s - RUNNING IN BOOT MODE\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1240 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1241 | /* Configure the TI device so we can use the BULK pipes for download */ |
| 1242 | status = config_boot_dev(serial->serial->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1243 | if (status) |
| 1244 | return status; |
| 1245 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1246 | if (le16_to_cpu(serial->serial->dev->descriptor.idVendor) |
| 1247 | != USB_VENDOR_ID_ION) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1248 | dev_dbg(dev, "%s - VID = 0x%x\n", __func__, |
| 1249 | le16_to_cpu(serial->serial->dev->descriptor.idVendor)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1250 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1251 | goto stayinbootmode; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1252 | } |
| 1253 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1254 | /* We have an ION device (I2c Must be programmed) |
| 1255 | Determine I2C image type */ |
| 1256 | if (i2c_type_bootmode(serial)) |
| 1257 | goto stayinbootmode; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1258 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1259 | /* Check for ION Vendor ID and that the I2C is valid */ |
| 1260 | if (!check_i2c_image(serial)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1261 | struct ti_i2c_image_header *header; |
| 1262 | int i; |
| 1263 | __u8 cs = 0; |
| 1264 | __u8 *buffer; |
| 1265 | int buffer_size; |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 1266 | int err; |
| 1267 | const struct firmware *fw; |
| 1268 | const char *fw_name = "edgeport/down3.bin"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1269 | |
| 1270 | /* Validate Hardware version number |
| 1271 | * Read Manufacturing Descriptor from TI Based Edgeport |
| 1272 | */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1273 | ti_manuf_desc = kmalloc(sizeof(*ti_manuf_desc), GFP_KERNEL); |
Johan Hovold | 10c642d | 2013-12-29 19:22:56 +0100 | [diff] [blame^] | 1274 | if (!ti_manuf_desc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1275 | return -ENOMEM; |
Johan Hovold | 10c642d | 2013-12-29 19:22:56 +0100 | [diff] [blame^] | 1276 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1277 | status = get_manuf_info(serial, (__u8 *)ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1278 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1279 | kfree(ti_manuf_desc); |
| 1280 | goto stayinbootmode; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1281 | } |
| 1282 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1283 | /* Check for version 2 */ |
| 1284 | if (!ignore_cpu_rev && ti_cpu_rev(ti_manuf_desc) < 2) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1285 | dev_dbg(dev, "%s - Wrong CPU Rev %d (Must be 2)\n", |
| 1286 | __func__, ti_cpu_rev(ti_manuf_desc)); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1287 | kfree(ti_manuf_desc); |
| 1288 | goto stayinbootmode; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1289 | } |
| 1290 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1291 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1292 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1293 | /* |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1294 | * In order to update the I2C firmware we must change the type |
| 1295 | * 2 record to type 0xF2. This will force the UMP to come up |
| 1296 | * in Boot Mode. Then while in boot mode, the driver will |
| 1297 | * download the latest firmware (padded to 15.5k) into the |
| 1298 | * UMP ram. Finally when the device comes back up in download |
| 1299 | * mode the driver will cause the new firmware to be copied |
| 1300 | * from the UMP Ram to I2C and the firmware will update the |
| 1301 | * record type from 0xf2 to 0x02. |
| 1302 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1303 | * Do we really have to copy the whole firmware image, |
| 1304 | * or could we do this in place! |
| 1305 | */ |
| 1306 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1307 | /* Allocate a 15.5k buffer + 3 byte header */ |
| 1308 | buffer_size = (((1024 * 16) - 512) + |
| 1309 | sizeof(struct ti_i2c_image_header)); |
| 1310 | buffer = kmalloc(buffer_size, GFP_KERNEL); |
Johan Hovold | 10c642d | 2013-12-29 19:22:56 +0100 | [diff] [blame^] | 1311 | if (!buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1312 | return -ENOMEM; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1313 | |
| 1314 | /* Initialize the buffer to 0xff (pad the buffer) */ |
| 1315 | memset(buffer, 0xff, buffer_size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1316 | |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 1317 | err = request_firmware(&fw, fw_name, dev); |
| 1318 | if (err) { |
Greg Kroah-Hartman | d9bb03d | 2012-09-18 16:59:23 +0100 | [diff] [blame] | 1319 | dev_err(dev, "Failed to load image \"%s\" err %d\n", |
| 1320 | fw_name, err); |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 1321 | kfree(buffer); |
| 1322 | return err; |
| 1323 | } |
| 1324 | memcpy(buffer, &fw->data[4], fw->size - 4); |
| 1325 | release_firmware(fw); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1326 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1327 | for (i = sizeof(struct ti_i2c_image_header); |
| 1328 | i < buffer_size; i++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1329 | cs = (__u8)(cs + buffer[i]); |
| 1330 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1331 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1332 | header = (struct ti_i2c_image_header *)buffer; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1333 | |
| 1334 | /* update length and checksum after padding */ |
| 1335 | header->Length = cpu_to_le16((__u16)(buffer_size - |
| 1336 | sizeof(struct ti_i2c_image_header))); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1337 | header->CheckSum = cs; |
| 1338 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1339 | /* Download the operational code */ |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1340 | dev_dbg(dev, "%s - Downloading operational code image (TI UMP)\n", __func__); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1341 | status = download_code(serial, buffer, buffer_size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1342 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1343 | kfree(buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1344 | |
| 1345 | if (status) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1346 | dev_dbg(dev, "%s - Error downloading operational code image\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1347 | return status; |
| 1348 | } |
| 1349 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1350 | /* Device will reboot */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1351 | serial->product_info.TiMode = TI_MODE_TRANSITIONING; |
| 1352 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1353 | dev_dbg(dev, "%s - Download successful -- Device rebooting...\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1354 | |
| 1355 | /* return an error on purpose */ |
| 1356 | return -ENODEV; |
| 1357 | } |
| 1358 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1359 | stayinbootmode: |
| 1360 | /* Eprom is invalid or blank stay in boot mode */ |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1361 | dev_dbg(dev, "%s - STAYING IN BOOT MODE\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1362 | serial->product_info.TiMode = TI_MODE_BOOT; |
| 1363 | |
| 1364 | return 0; |
| 1365 | } |
| 1366 | |
| 1367 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1368 | 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] | 1369 | { |
Greg Kroah-Hartman | 1143832 | 2013-06-06 10:32:00 -0700 | [diff] [blame] | 1370 | int port_number = port->port->port_number; |
| 1371 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1372 | on = !!on; /* 1 or 0 not bitmask */ |
| 1373 | return send_cmd(port->port->serial->dev, |
| 1374 | feature, (__u8)(UMPM_UART1_PORT + port_number), |
| 1375 | on, NULL, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1376 | } |
| 1377 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1378 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1379 | static int restore_mcr(struct edgeport_port *port, __u8 mcr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1380 | { |
| 1381 | int status = 0; |
| 1382 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1383 | dev_dbg(&port->port->dev, "%s - %x\n", __func__, mcr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1384 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1385 | status = ti_do_config(port, UMPC_SET_CLR_DTR, mcr & MCR_DTR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1386 | if (status) |
| 1387 | return status; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1388 | status = ti_do_config(port, UMPC_SET_CLR_RTS, mcr & MCR_RTS); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1389 | if (status) |
| 1390 | return status; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1391 | return ti_do_config(port, UMPC_SET_CLR_LOOPBACK, mcr & MCR_LOOPBACK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1392 | } |
| 1393 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1394 | /* Convert TI LSR to standard UART flags */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1395 | static __u8 map_line_status(__u8 ti_lsr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1396 | { |
| 1397 | __u8 lsr = 0; |
| 1398 | |
| 1399 | #define MAP_FLAG(flagUmp, flagUart) \ |
| 1400 | if (ti_lsr & flagUmp) \ |
| 1401 | lsr |= flagUart; |
| 1402 | |
| 1403 | MAP_FLAG(UMP_UART_LSR_OV_MASK, LSR_OVER_ERR) /* overrun */ |
| 1404 | MAP_FLAG(UMP_UART_LSR_PE_MASK, LSR_PAR_ERR) /* parity error */ |
| 1405 | MAP_FLAG(UMP_UART_LSR_FE_MASK, LSR_FRM_ERR) /* framing error */ |
| 1406 | MAP_FLAG(UMP_UART_LSR_BR_MASK, LSR_BREAK) /* break detected */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1407 | MAP_FLAG(UMP_UART_LSR_RX_MASK, LSR_RX_AVAIL) /* rx data available */ |
| 1408 | 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] | 1409 | |
| 1410 | #undef MAP_FLAG |
| 1411 | |
| 1412 | return lsr; |
| 1413 | } |
| 1414 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1415 | static void handle_new_msr(struct edgeport_port *edge_port, __u8 msr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1416 | { |
| 1417 | struct async_icount *icount; |
| 1418 | struct tty_struct *tty; |
| 1419 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1420 | dev_dbg(&edge_port->port->dev, "%s - %02x\n", __func__, msr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1421 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1422 | if (msr & (EDGEPORT_MSR_DELTA_CTS | EDGEPORT_MSR_DELTA_DSR | |
| 1423 | EDGEPORT_MSR_DELTA_RI | EDGEPORT_MSR_DELTA_CD)) { |
Johan Hovold | cf9a9d6 | 2013-03-21 12:37:09 +0100 | [diff] [blame] | 1424 | icount = &edge_port->port->icount; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1425 | |
| 1426 | /* update input line counters */ |
| 1427 | if (msr & EDGEPORT_MSR_DELTA_CTS) |
| 1428 | icount->cts++; |
| 1429 | if (msr & EDGEPORT_MSR_DELTA_DSR) |
| 1430 | icount->dsr++; |
| 1431 | if (msr & EDGEPORT_MSR_DELTA_CD) |
| 1432 | icount->dcd++; |
| 1433 | if (msr & EDGEPORT_MSR_DELTA_RI) |
| 1434 | icount->rng++; |
Johan Hovold | 48ee580 | 2013-03-21 12:37:10 +0100 | [diff] [blame] | 1435 | wake_up_interruptible(&edge_port->port->port.delta_msr_wait); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1436 | } |
| 1437 | |
| 1438 | /* Save the new modem status */ |
| 1439 | edge_port->shadow_msr = msr & 0xf0; |
| 1440 | |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1441 | tty = tty_port_tty_get(&edge_port->port->port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1442 | /* handle CTS flow control */ |
| 1443 | if (tty && C_CRTSCTS(tty)) { |
| 1444 | if (msr & EDGEPORT_MSR_CTS) { |
| 1445 | tty->hw_stopped = 0; |
| 1446 | tty_wakeup(tty); |
| 1447 | } else { |
| 1448 | tty->hw_stopped = 1; |
| 1449 | } |
| 1450 | } |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1451 | tty_kref_put(tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1452 | } |
| 1453 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1454 | static void handle_new_lsr(struct edgeport_port *edge_port, int lsr_data, |
| 1455 | __u8 lsr, __u8 data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1456 | { |
| 1457 | struct async_icount *icount; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1458 | __u8 new_lsr = (__u8)(lsr & (__u8)(LSR_OVER_ERR | LSR_PAR_ERR | |
| 1459 | LSR_FRM_ERR | LSR_BREAK)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1460 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1461 | dev_dbg(&edge_port->port->dev, "%s - %02x\n", __func__, new_lsr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1462 | |
| 1463 | edge_port->shadow_lsr = lsr; |
| 1464 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1465 | if (new_lsr & LSR_BREAK) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1466 | /* |
| 1467 | * Parity and Framing errors only count if they |
| 1468 | * occur exclusive of a break being received. |
| 1469 | */ |
| 1470 | new_lsr &= (__u8)(LSR_OVER_ERR | LSR_BREAK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1471 | |
| 1472 | /* Place LSR data byte into Rx buffer */ |
Jiri Slaby | 2e124b4 | 2013-01-03 15:53:06 +0100 | [diff] [blame] | 1473 | if (lsr_data) |
| 1474 | edge_tty_recv(edge_port->port, &data, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1475 | |
| 1476 | /* update input line counters */ |
Johan Hovold | cf9a9d6 | 2013-03-21 12:37:09 +0100 | [diff] [blame] | 1477 | icount = &edge_port->port->icount; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1478 | if (new_lsr & LSR_BREAK) |
| 1479 | icount->brk++; |
| 1480 | if (new_lsr & LSR_OVER_ERR) |
| 1481 | icount->overrun++; |
| 1482 | if (new_lsr & LSR_PAR_ERR) |
| 1483 | icount->parity++; |
| 1484 | if (new_lsr & LSR_FRM_ERR) |
| 1485 | icount->frame++; |
| 1486 | } |
| 1487 | |
| 1488 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1489 | static void edge_interrupt_callback(struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1490 | { |
Ming Lei | cdc9779 | 2008-02-24 18:41:47 +0800 | [diff] [blame] | 1491 | struct edgeport_serial *edge_serial = urb->context; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1492 | struct usb_serial_port *port; |
| 1493 | struct edgeport_port *edge_port; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1494 | struct device *dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1495 | unsigned char *data = urb->transfer_buffer; |
| 1496 | int length = urb->actual_length; |
| 1497 | int port_number; |
| 1498 | int function; |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1499 | int retval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1500 | __u8 lsr; |
| 1501 | __u8 msr; |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1502 | int status = urb->status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1503 | |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1504 | switch (status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1505 | case 0: |
| 1506 | /* success */ |
| 1507 | break; |
| 1508 | case -ECONNRESET: |
| 1509 | case -ENOENT: |
| 1510 | case -ESHUTDOWN: |
| 1511 | /* this urb is terminated, clean up */ |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1512 | 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] | 1513 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1514 | return; |
| 1515 | default: |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1516 | dev_err(&urb->dev->dev, "%s - nonzero urb status received: " |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1517 | "%d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1518 | goto exit; |
| 1519 | } |
| 1520 | |
| 1521 | if (!length) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1522 | dev_dbg(&urb->dev->dev, "%s - no data in urb\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1523 | goto exit; |
| 1524 | } |
| 1525 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1526 | dev = &edge_serial->serial->dev->dev; |
Greg Kroah-Hartman | 59d33f2 | 2012-09-18 09:58:57 +0100 | [diff] [blame] | 1527 | usb_serial_debug_data(dev, __func__, length, data); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1528 | |
| 1529 | if (length != 2) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1530 | 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] | 1531 | goto exit; |
| 1532 | } |
| 1533 | |
| 1534 | port_number = TIUMP_GET_PORT_FROM_CODE(data[0]); |
| 1535 | function = TIUMP_GET_FUNC_FROM_CODE(data[0]); |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1536 | dev_dbg(dev, "%s - port_number %d, function %d, info 0x%x\n", __func__, |
| 1537 | port_number, function, data[1]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1538 | port = edge_serial->serial->port[port_number]; |
| 1539 | edge_port = usb_get_serial_port_data(port); |
| 1540 | if (!edge_port) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1541 | dev_dbg(dev, "%s - edge_port not found\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1542 | return; |
| 1543 | } |
| 1544 | switch (function) { |
| 1545 | case TIUMP_INTERRUPT_CODE_LSR: |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1546 | lsr = map_line_status(data[1]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1547 | if (lsr & UMP_UART_LSR_DATA_MASK) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1548 | /* Save the LSR event for bulk read |
| 1549 | completion routine */ |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1550 | dev_dbg(dev, "%s - LSR Event Port %u LSR Status = %02x\n", |
| 1551 | __func__, port_number, lsr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1552 | edge_port->lsr_event = 1; |
| 1553 | edge_port->lsr_mask = lsr; |
| 1554 | } else { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1555 | dev_dbg(dev, "%s - ===== Port %d LSR Status = %02x ======\n", |
| 1556 | __func__, port_number, lsr); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1557 | handle_new_lsr(edge_port, 0, lsr, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1558 | } |
| 1559 | break; |
| 1560 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1561 | case TIUMP_INTERRUPT_CODE_MSR: /* MSR */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1562 | /* Copy MSR from UMP */ |
| 1563 | msr = data[1]; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1564 | dev_dbg(dev, "%s - ===== Port %u MSR Status = %02x ======\n", |
| 1565 | __func__, port_number, msr); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1566 | handle_new_msr(edge_port, msr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1567 | break; |
| 1568 | |
| 1569 | default: |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1570 | dev_err(&urb->dev->dev, |
| 1571 | "%s - Unknown Interrupt code from UMP %x\n", |
| 1572 | __func__, data[1]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1573 | break; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1574 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1575 | } |
| 1576 | |
| 1577 | exit: |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1578 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1579 | if (retval) |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1580 | dev_err(&urb->dev->dev, |
| 1581 | "%s - usb_submit_urb failed with result %d\n", |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1582 | __func__, retval); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1583 | } |
| 1584 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1585 | static void edge_bulk_in_callback(struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1586 | { |
Ming Lei | cdc9779 | 2008-02-24 18:41:47 +0800 | [diff] [blame] | 1587 | struct edgeport_port *edge_port = urb->context; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1588 | struct device *dev = &edge_port->port->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1589 | unsigned char *data = urb->transfer_buffer; |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1590 | int retval = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1591 | int port_number; |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1592 | int status = urb->status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1593 | |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1594 | switch (status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1595 | case 0: |
| 1596 | /* success */ |
| 1597 | break; |
| 1598 | case -ECONNRESET: |
| 1599 | case -ENOENT: |
| 1600 | case -ESHUTDOWN: |
| 1601 | /* this urb is terminated, clean up */ |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1602 | 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] | 1603 | return; |
| 1604 | default: |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1605 | 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] | 1606 | } |
| 1607 | |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1608 | if (status == -EPIPE) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1609 | goto exit; |
| 1610 | |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1611 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1612 | dev_err(&urb->dev->dev, "%s - stopping read!\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1613 | return; |
| 1614 | } |
| 1615 | |
Greg Kroah-Hartman | 1143832 | 2013-06-06 10:32:00 -0700 | [diff] [blame] | 1616 | port_number = edge_port->port->port_number; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1617 | |
| 1618 | if (edge_port->lsr_event) { |
| 1619 | edge_port->lsr_event = 0; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1620 | dev_dbg(dev, "%s ===== Port %u LSR Status = %02x, Data = %02x ======\n", |
| 1621 | __func__, port_number, edge_port->lsr_mask, *data); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1622 | handle_new_lsr(edge_port, 1, edge_port->lsr_mask, *data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1623 | /* Adjust buffer length/pointer */ |
| 1624 | --urb->actual_length; |
| 1625 | ++data; |
| 1626 | } |
| 1627 | |
Jiri Slaby | 2e124b4 | 2013-01-03 15:53:06 +0100 | [diff] [blame] | 1628 | if (urb->actual_length) { |
Greg Kroah-Hartman | 59d33f2 | 2012-09-18 09:58:57 +0100 | [diff] [blame] | 1629 | usb_serial_debug_data(dev, __func__, urb->actual_length, data); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1630 | if (edge_port->close_pending) |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1631 | dev_dbg(dev, "%s - close pending, dropping data on the floor\n", |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1632 | __func__); |
| 1633 | else |
Jiri Slaby | 2e124b4 | 2013-01-03 15:53:06 +0100 | [diff] [blame] | 1634 | edge_tty_recv(edge_port->port, data, |
Jiri Slaby | 05c7cd3 | 2013-01-03 15:53:04 +0100 | [diff] [blame] | 1635 | urb->actual_length); |
Johan Hovold | cf9a9d6 | 2013-03-21 12:37:09 +0100 | [diff] [blame] | 1636 | edge_port->port->icount.rx += urb->actual_length; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1637 | } |
| 1638 | |
| 1639 | exit: |
| 1640 | /* continue read unless stopped */ |
| 1641 | spin_lock(&edge_port->ep_lock); |
Johan Hovold | 5833041 | 2011-11-06 19:06:28 +0100 | [diff] [blame] | 1642 | if (edge_port->ep_read_urb_state == EDGE_READ_URB_RUNNING) |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1643 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
Johan Hovold | 5833041 | 2011-11-06 19:06:28 +0100 | [diff] [blame] | 1644 | else if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPING) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1645 | edge_port->ep_read_urb_state = EDGE_READ_URB_STOPPED; |
Johan Hovold | 5833041 | 2011-11-06 19:06:28 +0100 | [diff] [blame] | 1646 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1647 | spin_unlock(&edge_port->ep_lock); |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1648 | if (retval) |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1649 | 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] | 1650 | } |
| 1651 | |
Jiri Slaby | 2e124b4 | 2013-01-03 15:53:06 +0100 | [diff] [blame] | 1652 | static void edge_tty_recv(struct usb_serial_port *port, unsigned char *data, |
| 1653 | int length) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1654 | { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1655 | int queued; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1656 | |
Jiri Slaby | 05c7cd3 | 2013-01-03 15:53:04 +0100 | [diff] [blame] | 1657 | queued = tty_insert_flip_string(&port->port, data, length); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1658 | if (queued < length) |
Jiri Slaby | 05c7cd3 | 2013-01-03 15:53:04 +0100 | [diff] [blame] | 1659 | dev_err(&port->dev, "%s - dropping data, %d bytes lost\n", |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1660 | __func__, length - queued); |
Jiri Slaby | 2e124b4 | 2013-01-03 15:53:06 +0100 | [diff] [blame] | 1661 | tty_flip_buffer_push(&port->port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1662 | } |
| 1663 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1664 | static void edge_bulk_out_callback(struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1665 | { |
Ming Lei | cdc9779 | 2008-02-24 18:41:47 +0800 | [diff] [blame] | 1666 | struct usb_serial_port *port = urb->context; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1667 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1668 | int status = urb->status; |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1669 | struct tty_struct *tty; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1670 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1671 | edge_port->ep_write_urb_in_use = 0; |
| 1672 | |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1673 | switch (status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1674 | case 0: |
| 1675 | /* success */ |
| 1676 | break; |
| 1677 | case -ECONNRESET: |
| 1678 | case -ENOENT: |
| 1679 | case -ESHUTDOWN: |
| 1680 | /* this urb is terminated, clean up */ |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1681 | 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] | 1682 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1683 | return; |
| 1684 | default: |
Johan Hovold | 22a416c | 2012-02-10 13:20:51 +0100 | [diff] [blame] | 1685 | dev_err_console(port, "%s - nonzero write bulk status " |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1686 | "received: %d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1687 | } |
| 1688 | |
| 1689 | /* send any buffered data */ |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1690 | tty = tty_port_tty_get(&port->port); |
Jiri Slaby | ae3759c | 2013-04-04 22:41:01 +0200 | [diff] [blame] | 1691 | edge_send(port, tty); |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1692 | tty_kref_put(tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1693 | } |
| 1694 | |
Alan Cox | a509a7e | 2009-09-19 13:13:26 -0700 | [diff] [blame] | 1695 | 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] | 1696 | { |
| 1697 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 1698 | struct edgeport_serial *edge_serial; |
| 1699 | struct usb_device *dev; |
| 1700 | struct urb *urb; |
| 1701 | int port_number; |
| 1702 | int status; |
| 1703 | u16 open_settings; |
| 1704 | u8 transaction_timeout; |
| 1705 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1706 | if (edge_port == NULL) |
| 1707 | return -ENODEV; |
| 1708 | |
Greg Kroah-Hartman | 1143832 | 2013-06-06 10:32:00 -0700 | [diff] [blame] | 1709 | port_number = port->port_number; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1710 | |
| 1711 | dev = port->serial->dev; |
| 1712 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1713 | /* turn off loopback */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1714 | status = ti_do_config(edge_port, UMPC_SET_CLR_LOOPBACK, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1715 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1716 | dev_err(&port->dev, |
| 1717 | "%s - cannot send clear loopback command, %d\n", |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1718 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1719 | return status; |
| 1720 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1721 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1722 | /* set up the port settings */ |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1723 | if (tty) |
Alan Cox | adc8d74 | 2012-07-14 15:31:47 +0100 | [diff] [blame] | 1724 | edge_set_termios(tty, port, &tty->termios); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1725 | |
| 1726 | /* open up the port */ |
| 1727 | |
| 1728 | /* milliseconds to timeout for DMA transfer */ |
| 1729 | transaction_timeout = 2; |
| 1730 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1731 | edge_port->ump_read_timeout = |
| 1732 | max(20, ((transaction_timeout * 3) / 2)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1733 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1734 | /* milliseconds to timeout for DMA transfer */ |
| 1735 | open_settings = (u8)(UMP_DMA_MODE_CONTINOUS | |
| 1736 | UMP_PIPE_TRANS_TIMEOUT_ENA | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1737 | (transaction_timeout << 2)); |
| 1738 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1739 | dev_dbg(&port->dev, "%s - Sending UMPC_OPEN_PORT\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1740 | |
| 1741 | /* Tell TI to open and start the port */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1742 | status = send_cmd(dev, UMPC_OPEN_PORT, |
| 1743 | (u8)(UMPM_UART1_PORT + port_number), open_settings, NULL, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1744 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1745 | dev_err(&port->dev, "%s - cannot send open command, %d\n", |
| 1746 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1747 | return status; |
| 1748 | } |
| 1749 | |
| 1750 | /* Start the DMA? */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1751 | status = send_cmd(dev, UMPC_START_PORT, |
| 1752 | (u8)(UMPM_UART1_PORT + port_number), 0, NULL, 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, "%s - cannot send start DMA command, %d\n", |
| 1755 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1756 | return status; |
| 1757 | } |
| 1758 | |
| 1759 | /* Clear TX and RX buffers in UMP */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1760 | status = purge_port(port, UMP_PORT_DIR_OUT | UMP_PORT_DIR_IN); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1761 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1762 | dev_err(&port->dev, |
| 1763 | "%s - cannot send clear buffers command, %d\n", |
| 1764 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1765 | return status; |
| 1766 | } |
| 1767 | |
| 1768 | /* Read Initial MSR */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1769 | status = ti_vread_sync(dev, UMPC_READ_MSR, 0, |
| 1770 | (__u16)(UMPM_UART1_PORT + port_number), |
| 1771 | &edge_port->shadow_msr, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1772 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1773 | dev_err(&port->dev, "%s - cannot send read MSR command, %d\n", |
| 1774 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1775 | return status; |
| 1776 | } |
| 1777 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1778 | dev_dbg(&port->dev, "ShadowMSR 0x%X\n", edge_port->shadow_msr); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1779 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1780 | /* Set Initial MCR */ |
| 1781 | edge_port->shadow_mcr = MCR_RTS | MCR_DTR; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1782 | dev_dbg(&port->dev, "ShadowMCR 0x%X\n", edge_port->shadow_mcr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1783 | |
| 1784 | edge_serial = edge_port->edge_serial; |
Matthias Kaehlcke | 241ca64 | 2007-12-04 16:15:40 +0100 | [diff] [blame] | 1785 | if (mutex_lock_interruptible(&edge_serial->es_lock)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1786 | return -ERESTARTSYS; |
| 1787 | if (edge_serial->num_ports_open == 0) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1788 | /* we are the first port to open, post the interrupt urb */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1789 | urb = edge_serial->serial->port[0]->interrupt_in_urb; |
| 1790 | if (!urb) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1791 | dev_err(&port->dev, |
| 1792 | "%s - no interrupt urb present, exiting\n", |
| 1793 | __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1794 | status = -EINVAL; |
Matthias Kaehlcke | 241ca64 | 2007-12-04 16:15:40 +0100 | [diff] [blame] | 1795 | goto release_es_lock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1796 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1797 | urb->context = edge_serial; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1798 | status = usb_submit_urb(urb, GFP_KERNEL); |
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 - usb_submit_urb failed with value %d\n", |
| 1802 | __func__, status); |
Matthias Kaehlcke | 241ca64 | 2007-12-04 16:15:40 +0100 | [diff] [blame] | 1803 | goto release_es_lock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1804 | } |
| 1805 | } |
| 1806 | |
| 1807 | /* |
| 1808 | * reset the data toggle on the bulk endpoints to work around bug in |
| 1809 | * host controllers where things get out of sync some times |
| 1810 | */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1811 | usb_clear_halt(dev, port->write_urb->pipe); |
| 1812 | usb_clear_halt(dev, port->read_urb->pipe); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1813 | |
| 1814 | /* start up our bulk read urb */ |
| 1815 | urb = port->read_urb; |
| 1816 | if (!urb) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1817 | dev_err(&port->dev, "%s - no read urb present, exiting\n", |
| 1818 | __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1819 | status = -EINVAL; |
| 1820 | goto unlink_int_urb; |
| 1821 | } |
| 1822 | edge_port->ep_read_urb_state = EDGE_READ_URB_RUNNING; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1823 | urb->context = edge_port; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1824 | status = usb_submit_urb(urb, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1825 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1826 | dev_err(&port->dev, |
| 1827 | "%s - read bulk usb_submit_urb failed with value %d\n", |
| 1828 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1829 | goto unlink_int_urb; |
| 1830 | } |
| 1831 | |
| 1832 | ++edge_serial->num_ports_open; |
| 1833 | |
Matthias Kaehlcke | 241ca64 | 2007-12-04 16:15:40 +0100 | [diff] [blame] | 1834 | goto release_es_lock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1835 | |
| 1836 | unlink_int_urb: |
| 1837 | if (edge_port->edge_serial->num_ports_open == 0) |
| 1838 | usb_kill_urb(port->serial->port[0]->interrupt_in_urb); |
Matthias Kaehlcke | 241ca64 | 2007-12-04 16:15:40 +0100 | [diff] [blame] | 1839 | release_es_lock: |
| 1840 | mutex_unlock(&edge_serial->es_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1841 | return status; |
| 1842 | } |
| 1843 | |
Alan Cox | 335f851 | 2009-06-11 12:26:29 +0100 | [diff] [blame] | 1844 | static void edge_close(struct usb_serial_port *port) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1845 | { |
| 1846 | struct edgeport_serial *edge_serial; |
| 1847 | struct edgeport_port *edge_port; |
Johan Hovold | af58105 | 2012-03-26 20:31:38 +0200 | [diff] [blame] | 1848 | struct usb_serial *serial = port->serial; |
Johan Hovold | 77de251 | 2013-01-14 16:52:54 +0100 | [diff] [blame] | 1849 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1850 | int port_number; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1851 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1852 | edge_serial = usb_get_serial_data(port->serial); |
| 1853 | edge_port = usb_get_serial_port_data(port); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1854 | if (edge_serial == NULL || edge_port == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1855 | return; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1856 | |
| 1857 | /* The bulkreadcompletion routine will check |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1858 | * this flag and dump add read data */ |
| 1859 | edge_port->close_pending = 1; |
| 1860 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1861 | usb_kill_urb(port->read_urb); |
| 1862 | usb_kill_urb(port->write_urb); |
| 1863 | edge_port->ep_write_urb_in_use = 0; |
Johan Hovold | 77de251 | 2013-01-14 16:52:54 +0100 | [diff] [blame] | 1864 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
Johan Hovold | ddca16e | 2013-06-26 16:47:37 +0200 | [diff] [blame] | 1865 | kfifo_reset_out(&port->write_fifo); |
Johan Hovold | 77de251 | 2013-01-14 16:52:54 +0100 | [diff] [blame] | 1866 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1867 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1868 | dev_dbg(&port->dev, "%s - send umpc_close_port\n", __func__); |
Greg Kroah-Hartman | 1143832 | 2013-06-06 10:32:00 -0700 | [diff] [blame] | 1869 | port_number = port->port_number; |
Johan Hovold | bca87e9 | 2013-03-21 12:37:38 +0100 | [diff] [blame] | 1870 | send_cmd(serial->dev, UMPC_CLOSE_PORT, |
| 1871 | (__u8)(UMPM_UART1_PORT + port_number), 0, NULL, 0); |
Johan Hovold | af58105 | 2012-03-26 20:31:38 +0200 | [diff] [blame] | 1872 | |
Matthias Kaehlcke | 241ca64 | 2007-12-04 16:15:40 +0100 | [diff] [blame] | 1873 | mutex_lock(&edge_serial->es_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1874 | --edge_port->edge_serial->num_ports_open; |
| 1875 | if (edge_port->edge_serial->num_ports_open <= 0) { |
| 1876 | /* last port is now closed, let's shut down our interrupt urb */ |
| 1877 | usb_kill_urb(port->serial->port[0]->interrupt_in_urb); |
| 1878 | edge_port->edge_serial->num_ports_open = 0; |
| 1879 | } |
Matthias Kaehlcke | 241ca64 | 2007-12-04 16:15:40 +0100 | [diff] [blame] | 1880 | mutex_unlock(&edge_serial->es_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1881 | edge_port->close_pending = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1882 | } |
| 1883 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1884 | static int edge_write(struct tty_struct *tty, struct usb_serial_port *port, |
| 1885 | const unsigned char *data, int count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1886 | { |
| 1887 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1888 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1889 | if (count == 0) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1890 | dev_dbg(&port->dev, "%s - write request of 0 bytes\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1891 | return 0; |
| 1892 | } |
| 1893 | |
| 1894 | if (edge_port == NULL) |
| 1895 | return -ENODEV; |
| 1896 | if (edge_port->close_pending == 1) |
| 1897 | return -ENODEV; |
| 1898 | |
Johan Hovold | ddca16e | 2013-06-26 16:47:37 +0200 | [diff] [blame] | 1899 | count = kfifo_in_locked(&port->write_fifo, data, count, |
Johan Hovold | d733cec | 2010-05-19 00:01:37 +0200 | [diff] [blame] | 1900 | &edge_port->ep_lock); |
Jiri Slaby | ae3759c | 2013-04-04 22:41:01 +0200 | [diff] [blame] | 1901 | edge_send(port, tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1902 | |
| 1903 | return count; |
| 1904 | } |
| 1905 | |
Jiri Slaby | ae3759c | 2013-04-04 22:41:01 +0200 | [diff] [blame] | 1906 | 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] | 1907 | { |
| 1908 | int count, result; |
| 1909 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1910 | unsigned long flags; |
| 1911 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1912 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
| 1913 | |
| 1914 | if (edge_port->ep_write_urb_in_use) { |
| 1915 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
| 1916 | return; |
| 1917 | } |
| 1918 | |
Johan Hovold | ddca16e | 2013-06-26 16:47:37 +0200 | [diff] [blame] | 1919 | count = kfifo_out(&port->write_fifo, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1920 | port->write_urb->transfer_buffer, |
| 1921 | port->bulk_out_size); |
| 1922 | |
| 1923 | if (count == 0) { |
| 1924 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
| 1925 | return; |
| 1926 | } |
| 1927 | |
| 1928 | edge_port->ep_write_urb_in_use = 1; |
| 1929 | |
| 1930 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
| 1931 | |
Greg Kroah-Hartman | 59d33f2 | 2012-09-18 09:58:57 +0100 | [diff] [blame] | 1932 | 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] | 1933 | |
| 1934 | /* set up our urb */ |
Johan Hovold | fd11961 | 2011-11-06 19:06:30 +0100 | [diff] [blame] | 1935 | port->write_urb->transfer_buffer_length = count; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1936 | |
| 1937 | /* send the data out the bulk port */ |
| 1938 | result = usb_submit_urb(port->write_urb, GFP_ATOMIC); |
| 1939 | if (result) { |
Johan Hovold | 22a416c | 2012-02-10 13:20:51 +0100 | [diff] [blame] | 1940 | dev_err_console(port, |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1941 | "%s - failed submitting write urb, error %d\n", |
| 1942 | __func__, result); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1943 | edge_port->ep_write_urb_in_use = 0; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1944 | /* TODO: reschedule edge_send */ |
| 1945 | } else |
Johan Hovold | cf9a9d6 | 2013-03-21 12:37:09 +0100 | [diff] [blame] | 1946 | edge_port->port->icount.tx += count; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1947 | |
| 1948 | /* wakeup any process waiting for writes to complete */ |
| 1949 | /* there is now more room in the buffer for new writes */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1950 | if (tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1951 | tty_wakeup(tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1952 | } |
| 1953 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1954 | static int edge_write_room(struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1955 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1956 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1957 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 1958 | int room = 0; |
| 1959 | unsigned long flags; |
| 1960 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1961 | if (edge_port == NULL) |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1962 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1963 | if (edge_port->close_pending == 1) |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1964 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1965 | |
| 1966 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
Johan Hovold | ddca16e | 2013-06-26 16:47:37 +0200 | [diff] [blame] | 1967 | room = kfifo_avail(&port->write_fifo); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1968 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
| 1969 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1970 | dev_dbg(&port->dev, "%s - returns %d\n", __func__, room); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1971 | return room; |
| 1972 | } |
| 1973 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1974 | static int edge_chars_in_buffer(struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1975 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1976 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1977 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 1978 | int chars = 0; |
| 1979 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1980 | if (edge_port == NULL) |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1981 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1982 | |
| 1983 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
Johan Hovold | ddca16e | 2013-06-26 16:47:37 +0200 | [diff] [blame] | 1984 | chars = kfifo_len(&port->write_fifo); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1985 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
| 1986 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1987 | dev_dbg(&port->dev, "%s - returns %d\n", __func__, chars); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1988 | return chars; |
| 1989 | } |
| 1990 | |
Johan Hovold | b16634a | 2013-05-05 20:32:31 +0200 | [diff] [blame] | 1991 | static bool edge_tx_empty(struct usb_serial_port *port) |
| 1992 | { |
| 1993 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 1994 | int ret; |
| 1995 | |
| 1996 | ret = tx_active(edge_port); |
| 1997 | if (ret > 0) |
| 1998 | return false; |
| 1999 | |
| 2000 | return true; |
| 2001 | } |
| 2002 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2003 | static void edge_throttle(struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2004 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2005 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2006 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2007 | int status; |
| 2008 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2009 | if (edge_port == NULL) |
| 2010 | return; |
| 2011 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2012 | /* if we are implementing XON/XOFF, send the stop character */ |
| 2013 | if (I_IXOFF(tty)) { |
| 2014 | unsigned char stop_char = STOP_CHAR(tty); |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2015 | status = edge_write(tty, port, &stop_char, 1); |
| 2016 | if (status <= 0) { |
| 2017 | dev_err(&port->dev, "%s - failed to write stop character, %d\n", __func__, status); |
| 2018 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2019 | } |
| 2020 | |
| 2021 | /* if we are implementing RTS/CTS, stop reads */ |
| 2022 | /* and the Edgeport will clear the RTS line */ |
| 2023 | if (C_CRTSCTS(tty)) |
| 2024 | stop_read(edge_port); |
| 2025 | |
| 2026 | } |
| 2027 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2028 | static void edge_unthrottle(struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2029 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2030 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2031 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2032 | int status; |
| 2033 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2034 | if (edge_port == NULL) |
| 2035 | return; |
| 2036 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2037 | /* if we are implementing XON/XOFF, send the start character */ |
| 2038 | if (I_IXOFF(tty)) { |
| 2039 | unsigned char start_char = START_CHAR(tty); |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2040 | status = edge_write(tty, port, &start_char, 1); |
| 2041 | if (status <= 0) { |
| 2042 | dev_err(&port->dev, "%s - failed to write start character, %d\n", __func__, status); |
| 2043 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2044 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2045 | /* if we are implementing RTS/CTS, restart reads */ |
| 2046 | /* are the Edgeport will assert the RTS line */ |
| 2047 | if (C_CRTSCTS(tty)) { |
| 2048 | status = restart_read(edge_port); |
| 2049 | if (status) |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2050 | dev_err(&port->dev, |
| 2051 | "%s - read bulk usb_submit_urb failed: %d\n", |
| 2052 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2053 | } |
| 2054 | |
| 2055 | } |
| 2056 | |
| 2057 | static void stop_read(struct edgeport_port *edge_port) |
| 2058 | { |
| 2059 | unsigned long flags; |
| 2060 | |
| 2061 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
| 2062 | |
| 2063 | if (edge_port->ep_read_urb_state == EDGE_READ_URB_RUNNING) |
| 2064 | edge_port->ep_read_urb_state = EDGE_READ_URB_STOPPING; |
| 2065 | edge_port->shadow_mcr &= ~MCR_RTS; |
| 2066 | |
| 2067 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
| 2068 | } |
| 2069 | |
| 2070 | static int restart_read(struct edgeport_port *edge_port) |
| 2071 | { |
| 2072 | struct urb *urb; |
| 2073 | int status = 0; |
| 2074 | unsigned long flags; |
| 2075 | |
| 2076 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
| 2077 | |
| 2078 | if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPED) { |
| 2079 | urb = edge_port->port->read_urb; |
Oliver Neukum | efdff60 | 2007-06-05 10:50:48 +0200 | [diff] [blame] | 2080 | status = usb_submit_urb(urb, GFP_ATOMIC); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2081 | } |
| 2082 | edge_port->ep_read_urb_state = EDGE_READ_URB_RUNNING; |
| 2083 | edge_port->shadow_mcr |= MCR_RTS; |
| 2084 | |
| 2085 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
| 2086 | |
| 2087 | return status; |
| 2088 | } |
| 2089 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2090 | static void change_port_settings(struct tty_struct *tty, |
| 2091 | struct edgeport_port *edge_port, struct ktermios *old_termios) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2092 | { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2093 | struct device *dev = &edge_port->port->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2094 | struct ump_uart_config *config; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2095 | int baud; |
| 2096 | unsigned cflag; |
| 2097 | int status; |
Greg Kroah-Hartman | 1143832 | 2013-06-06 10:32:00 -0700 | [diff] [blame] | 2098 | int port_number = edge_port->port->port_number; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2099 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2100 | config = kmalloc (sizeof (*config), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2101 | if (!config) { |
Alan Cox | adc8d74 | 2012-07-14 15:31:47 +0100 | [diff] [blame] | 2102 | tty->termios = *old_termios; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2103 | return; |
| 2104 | } |
| 2105 | |
Alan Cox | adc8d74 | 2012-07-14 15:31:47 +0100 | [diff] [blame] | 2106 | cflag = tty->termios.c_cflag; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2107 | |
| 2108 | config->wFlags = 0; |
| 2109 | |
| 2110 | /* These flags must be set */ |
| 2111 | config->wFlags |= UMP_MASK_UART_FLAGS_RECEIVE_MS_INT; |
| 2112 | config->wFlags |= UMP_MASK_UART_FLAGS_AUTO_START_ON_ERR; |
| 2113 | config->bUartMode = (__u8)(edge_port->bUartMode); |
| 2114 | |
| 2115 | switch (cflag & CSIZE) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2116 | case CS5: |
| 2117 | config->bDataBits = UMP_UART_CHAR5BITS; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2118 | dev_dbg(dev, "%s - data bits = 5\n", __func__); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2119 | break; |
| 2120 | case CS6: |
| 2121 | config->bDataBits = UMP_UART_CHAR6BITS; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2122 | dev_dbg(dev, "%s - data bits = 6\n", __func__); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2123 | break; |
| 2124 | case CS7: |
| 2125 | config->bDataBits = UMP_UART_CHAR7BITS; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2126 | dev_dbg(dev, "%s - data bits = 7\n", __func__); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2127 | break; |
| 2128 | default: |
| 2129 | case CS8: |
| 2130 | config->bDataBits = UMP_UART_CHAR8BITS; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2131 | dev_dbg(dev, "%s - data bits = 8\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2132 | break; |
| 2133 | } |
| 2134 | |
| 2135 | if (cflag & PARENB) { |
| 2136 | if (cflag & PARODD) { |
| 2137 | config->wFlags |= UMP_MASK_UART_FLAGS_PARITY; |
| 2138 | config->bParity = UMP_UART_ODDPARITY; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2139 | dev_dbg(dev, "%s - parity = odd\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2140 | } else { |
| 2141 | config->wFlags |= UMP_MASK_UART_FLAGS_PARITY; |
| 2142 | config->bParity = UMP_UART_EVENPARITY; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2143 | dev_dbg(dev, "%s - parity = even\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2144 | } |
| 2145 | } else { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2146 | config->bParity = UMP_UART_NOPARITY; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2147 | dev_dbg(dev, "%s - parity = none\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2148 | } |
| 2149 | |
| 2150 | if (cflag & CSTOPB) { |
| 2151 | config->bStopBits = UMP_UART_STOPBIT2; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2152 | dev_dbg(dev, "%s - stop bits = 2\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2153 | } else { |
| 2154 | config->bStopBits = UMP_UART_STOPBIT1; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2155 | dev_dbg(dev, "%s - stop bits = 1\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2156 | } |
| 2157 | |
| 2158 | /* figure out the flow control settings */ |
| 2159 | if (cflag & CRTSCTS) { |
| 2160 | config->wFlags |= UMP_MASK_UART_FLAGS_OUT_X_CTS_FLOW; |
| 2161 | config->wFlags |= UMP_MASK_UART_FLAGS_RTS_FLOW; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2162 | dev_dbg(dev, "%s - RTS/CTS is enabled\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2163 | } else { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2164 | dev_dbg(dev, "%s - RTS/CTS is disabled\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2165 | tty->hw_stopped = 0; |
| 2166 | restart_read(edge_port); |
| 2167 | } |
| 2168 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2169 | /* if we are implementing XON/XOFF, set the start and stop |
| 2170 | character in the device */ |
| 2171 | config->cXon = START_CHAR(tty); |
| 2172 | config->cXoff = STOP_CHAR(tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2173 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2174 | /* if we are implementing INBOUND XON/XOFF */ |
| 2175 | if (I_IXOFF(tty)) { |
| 2176 | config->wFlags |= UMP_MASK_UART_FLAGS_IN_X; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2177 | dev_dbg(dev, "%s - INBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x\n", |
| 2178 | __func__, config->cXon, config->cXoff); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2179 | } else |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2180 | dev_dbg(dev, "%s - INBOUND XON/XOFF is disabled\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2181 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2182 | /* if we are implementing OUTBOUND XON/XOFF */ |
| 2183 | if (I_IXON(tty)) { |
| 2184 | config->wFlags |= UMP_MASK_UART_FLAGS_OUT_X; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2185 | dev_dbg(dev, "%s - OUTBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x\n", |
| 2186 | __func__, config->cXon, config->cXoff); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2187 | } else |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2188 | dev_dbg(dev, "%s - OUTBOUND XON/XOFF is disabled\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2189 | |
Alan Cox | adc8d74 | 2012-07-14 15:31:47 +0100 | [diff] [blame] | 2190 | tty->termios.c_cflag &= ~CMSPAR; |
Alan Cox | d5f5bcd | 2008-01-03 16:57:33 +0000 | [diff] [blame] | 2191 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2192 | /* Round the baud rate */ |
| 2193 | baud = tty_get_baud_rate(tty); |
| 2194 | if (!baud) { |
| 2195 | /* pick a default, any default... */ |
| 2196 | baud = 9600; |
Alan Cox | d5f5bcd | 2008-01-03 16:57:33 +0000 | [diff] [blame] | 2197 | } else |
| 2198 | tty_encode_baud_rate(tty, baud, baud); |
| 2199 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2200 | edge_port->baud_rate = baud; |
| 2201 | config->wBaudRate = (__u16)((461550L + baud/2) / baud); |
| 2202 | |
Alan Cox | d5f5bcd | 2008-01-03 16:57:33 +0000 | [diff] [blame] | 2203 | /* FIXME: Recompute actual baud from divisor here */ |
| 2204 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2205 | 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] | 2206 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2207 | dev_dbg(dev, "wBaudRate: %d\n", (int)(461550L / config->wBaudRate)); |
| 2208 | dev_dbg(dev, "wFlags: 0x%x\n", config->wFlags); |
| 2209 | dev_dbg(dev, "bDataBits: %d\n", config->bDataBits); |
| 2210 | dev_dbg(dev, "bParity: %d\n", config->bParity); |
| 2211 | dev_dbg(dev, "bStopBits: %d\n", config->bStopBits); |
| 2212 | dev_dbg(dev, "cXon: %d\n", config->cXon); |
| 2213 | dev_dbg(dev, "cXoff: %d\n", config->cXoff); |
| 2214 | dev_dbg(dev, "bUartMode: %d\n", config->bUartMode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2215 | |
| 2216 | /* move the word values into big endian mode */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2217 | cpu_to_be16s(&config->wFlags); |
| 2218 | cpu_to_be16s(&config->wBaudRate); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2219 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2220 | status = send_cmd(edge_port->port->serial->dev, UMPC_SET_CONFIG, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2221 | (__u8)(UMPM_UART1_PORT + port_number), |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2222 | 0, (__u8 *)config, sizeof(*config)); |
| 2223 | if (status) |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2224 | dev_dbg(dev, "%s - error %d when trying to write config to device\n", |
| 2225 | __func__, status); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2226 | kfree(config); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2227 | } |
| 2228 | |
Alan Cox | 2e0ddd6 | 2008-07-22 11:12:33 +0100 | [diff] [blame] | 2229 | static void edge_set_termios(struct tty_struct *tty, |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2230 | struct usb_serial_port *port, struct ktermios *old_termios) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2231 | { |
| 2232 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2233 | unsigned int cflag; |
| 2234 | |
Alan Cox | adc8d74 | 2012-07-14 15:31:47 +0100 | [diff] [blame] | 2235 | cflag = tty->termios.c_cflag; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2236 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2237 | dev_dbg(&port->dev, "%s - clfag %08x iflag %08x\n", __func__, |
Linus Torvalds | d9a8074 | 2012-10-01 13:23:01 -0700 | [diff] [blame] | 2238 | tty->termios.c_cflag, tty->termios.c_iflag); |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2239 | dev_dbg(&port->dev, "%s - old clfag %08x old iflag %08x\n", __func__, |
| 2240 | old_termios->c_cflag, old_termios->c_iflag); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2241 | |
| 2242 | if (edge_port == NULL) |
| 2243 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2244 | /* change the port settings to the new ones specified */ |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2245 | change_port_settings(tty, edge_port, old_termios); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2246 | } |
| 2247 | |
Alan Cox | 20b9d17 | 2011-02-14 16:26:50 +0000 | [diff] [blame] | 2248 | static int edge_tiocmset(struct tty_struct *tty, |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2249 | unsigned int set, unsigned int clear) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2250 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2251 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2252 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 2253 | unsigned int mcr; |
Alan Cox | 3d71fe0 | 2008-02-20 21:38:32 +0000 | [diff] [blame] | 2254 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2255 | |
Alan Cox | 3d71fe0 | 2008-02-20 21:38:32 +0000 | [diff] [blame] | 2256 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2257 | mcr = edge_port->shadow_mcr; |
| 2258 | if (set & TIOCM_RTS) |
| 2259 | mcr |= MCR_RTS; |
| 2260 | if (set & TIOCM_DTR) |
| 2261 | mcr |= MCR_DTR; |
| 2262 | if (set & TIOCM_LOOP) |
| 2263 | mcr |= MCR_LOOPBACK; |
| 2264 | |
| 2265 | if (clear & TIOCM_RTS) |
| 2266 | mcr &= ~MCR_RTS; |
| 2267 | if (clear & TIOCM_DTR) |
| 2268 | mcr &= ~MCR_DTR; |
| 2269 | if (clear & TIOCM_LOOP) |
| 2270 | mcr &= ~MCR_LOOPBACK; |
| 2271 | |
| 2272 | edge_port->shadow_mcr = mcr; |
Alan Cox | 3d71fe0 | 2008-02-20 21:38:32 +0000 | [diff] [blame] | 2273 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2274 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2275 | restore_mcr(edge_port, mcr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2276 | return 0; |
| 2277 | } |
| 2278 | |
Alan Cox | 60b33c1 | 2011-02-14 16:26:14 +0000 | [diff] [blame] | 2279 | static int edge_tiocmget(struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2280 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2281 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2282 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 2283 | unsigned int result = 0; |
| 2284 | unsigned int msr; |
| 2285 | unsigned int mcr; |
Alan Cox | 3d71fe0 | 2008-02-20 21:38:32 +0000 | [diff] [blame] | 2286 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2287 | |
Alan Cox | 3d71fe0 | 2008-02-20 21:38:32 +0000 | [diff] [blame] | 2288 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
| 2289 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2290 | msr = edge_port->shadow_msr; |
| 2291 | mcr = edge_port->shadow_mcr; |
| 2292 | result = ((mcr & MCR_DTR) ? TIOCM_DTR: 0) /* 0x002 */ |
| 2293 | | ((mcr & MCR_RTS) ? TIOCM_RTS: 0) /* 0x004 */ |
| 2294 | | ((msr & EDGEPORT_MSR_CTS) ? TIOCM_CTS: 0) /* 0x020 */ |
| 2295 | | ((msr & EDGEPORT_MSR_CD) ? TIOCM_CAR: 0) /* 0x040 */ |
| 2296 | | ((msr & EDGEPORT_MSR_RI) ? TIOCM_RI: 0) /* 0x080 */ |
| 2297 | | ((msr & EDGEPORT_MSR_DSR) ? TIOCM_DSR: 0); /* 0x100 */ |
| 2298 | |
| 2299 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2300 | dev_dbg(&port->dev, "%s -- %x\n", __func__, result); |
Alan Cox | 3d71fe0 | 2008-02-20 21:38:32 +0000 | [diff] [blame] | 2301 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2302 | |
| 2303 | return result; |
| 2304 | } |
| 2305 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2306 | static int get_serial_info(struct edgeport_port *edge_port, |
| 2307 | struct serial_struct __user *retinfo) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2308 | { |
| 2309 | struct serial_struct tmp; |
Johan Hovold | f40d781 | 2013-01-14 16:52:58 +0100 | [diff] [blame] | 2310 | unsigned cwait; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2311 | |
| 2312 | if (!retinfo) |
| 2313 | return -EFAULT; |
| 2314 | |
Johan Hovold | f40d781 | 2013-01-14 16:52:58 +0100 | [diff] [blame] | 2315 | cwait = edge_port->port->port.closing_wait; |
| 2316 | if (cwait != ASYNC_CLOSING_WAIT_NONE) |
Johan Hovold | b6fd35e | 2013-04-18 17:33:17 +0200 | [diff] [blame] | 2317 | cwait = jiffies_to_msecs(cwait) / 10; |
Johan Hovold | f40d781 | 2013-01-14 16:52:58 +0100 | [diff] [blame] | 2318 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2319 | memset(&tmp, 0, sizeof(tmp)); |
| 2320 | |
| 2321 | tmp.type = PORT_16550A; |
Greg Kroah-Hartman | e5b1e20 | 2013-06-07 11:04:28 -0700 | [diff] [blame] | 2322 | tmp.line = edge_port->port->minor; |
Greg Kroah-Hartman | 1143832 | 2013-06-06 10:32:00 -0700 | [diff] [blame] | 2323 | tmp.port = edge_port->port->port_number; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2324 | tmp.irq = 0; |
| 2325 | tmp.flags = ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ; |
| 2326 | tmp.xmit_fifo_size = edge_port->port->bulk_out_size; |
| 2327 | tmp.baud_base = 9600; |
| 2328 | tmp.close_delay = 5*HZ; |
Johan Hovold | f40d781 | 2013-01-14 16:52:58 +0100 | [diff] [blame] | 2329 | tmp.closing_wait = cwait; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2330 | |
| 2331 | if (copy_to_user(retinfo, &tmp, sizeof(*retinfo))) |
| 2332 | return -EFAULT; |
| 2333 | return 0; |
| 2334 | } |
| 2335 | |
Alan Cox | 00a0d0d | 2011-02-14 16:27:06 +0000 | [diff] [blame] | 2336 | static int edge_ioctl(struct tty_struct *tty, |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2337 | unsigned int cmd, unsigned long arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2338 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2339 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2340 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2341 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2342 | switch (cmd) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2343 | case TIOCGSERIAL: |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2344 | dev_dbg(&port->dev, "%s - TIOCGSERIAL\n", __func__); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2345 | return get_serial_info(edge_port, |
| 2346 | (struct serial_struct __user *) arg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2347 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2348 | return -ENOIOCTLCMD; |
| 2349 | } |
| 2350 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2351 | static void edge_break(struct tty_struct *tty, int break_state) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2352 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2353 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2354 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 2355 | int status; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2356 | int bv = 0; /* Off */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2357 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2358 | if (break_state == -1) |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2359 | bv = 1; /* On */ |
| 2360 | status = ti_do_config(edge_port, UMPC_SET_CLR_BREAK, bv); |
| 2361 | if (status) |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2362 | dev_dbg(&port->dev, "%s - error %d sending break set/clear command.\n", |
| 2363 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2364 | } |
| 2365 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2366 | static int edge_startup(struct usb_serial *serial) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2367 | { |
| 2368 | struct edgeport_serial *edge_serial; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2369 | int status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2370 | |
| 2371 | /* create our private serial structure */ |
Eric Sesterhenn | 80b6ca4 | 2006-02-27 21:29:43 +0100 | [diff] [blame] | 2372 | edge_serial = kzalloc(sizeof(struct edgeport_serial), GFP_KERNEL); |
Johan Hovold | 10c642d | 2013-12-29 19:22:56 +0100 | [diff] [blame^] | 2373 | if (!edge_serial) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2374 | return -ENOMEM; |
Johan Hovold | 10c642d | 2013-12-29 19:22:56 +0100 | [diff] [blame^] | 2375 | |
Matthias Kaehlcke | 241ca64 | 2007-12-04 16:15:40 +0100 | [diff] [blame] | 2376 | mutex_init(&edge_serial->es_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2377 | edge_serial->serial = serial; |
| 2378 | usb_set_serial_data(serial, edge_serial); |
| 2379 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2380 | status = download_fw(edge_serial); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2381 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2382 | kfree(edge_serial); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2383 | return status; |
| 2384 | } |
| 2385 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2386 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2387 | } |
| 2388 | |
Alan Stern | f9c99bb | 2009-06-02 11:53:55 -0400 | [diff] [blame] | 2389 | static void edge_disconnect(struct usb_serial *serial) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2390 | { |
Alan Stern | f9c99bb | 2009-06-02 11:53:55 -0400 | [diff] [blame] | 2391 | } |
| 2392 | |
| 2393 | static void edge_release(struct usb_serial *serial) |
| 2394 | { |
Jesper Juhl | 0d46c00 | 2007-07-16 22:17:25 +0200 | [diff] [blame] | 2395 | kfree(usb_get_serial_data(serial)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2396 | } |
| 2397 | |
Johan Hovold | 0036153 | 2012-10-17 13:34:58 +0200 | [diff] [blame] | 2398 | static int edge_port_probe(struct usb_serial_port *port) |
| 2399 | { |
| 2400 | struct edgeport_port *edge_port; |
| 2401 | int ret; |
| 2402 | |
| 2403 | edge_port = kzalloc(sizeof(*edge_port), GFP_KERNEL); |
| 2404 | if (!edge_port) |
| 2405 | return -ENOMEM; |
| 2406 | |
Johan Hovold | 0036153 | 2012-10-17 13:34:58 +0200 | [diff] [blame] | 2407 | spin_lock_init(&edge_port->ep_lock); |
| 2408 | edge_port->port = port; |
| 2409 | edge_port->edge_serial = usb_get_serial_data(port->serial); |
| 2410 | edge_port->bUartMode = default_uart_mode; |
| 2411 | |
Johan Hovold | 0fce06d | 2013-06-26 16:47:38 +0200 | [diff] [blame] | 2412 | switch (port->port_number) { |
| 2413 | case 0: |
| 2414 | edge_port->uart_base = UMPMEM_BASE_UART1; |
| 2415 | edge_port->dma_address = UMPD_OEDB1_ADDRESS; |
| 2416 | break; |
| 2417 | case 1: |
| 2418 | edge_port->uart_base = UMPMEM_BASE_UART2; |
| 2419 | edge_port->dma_address = UMPD_OEDB2_ADDRESS; |
| 2420 | break; |
| 2421 | default: |
| 2422 | dev_err(&port->dev, "unknown port number\n"); |
| 2423 | ret = -ENODEV; |
| 2424 | goto err; |
| 2425 | } |
| 2426 | |
| 2427 | dev_dbg(&port->dev, |
| 2428 | "%s - port_number = %d, uart_base = %04x, dma_address = %04x\n", |
| 2429 | __func__, port->port_number, edge_port->uart_base, |
| 2430 | edge_port->dma_address); |
| 2431 | |
Johan Hovold | 0036153 | 2012-10-17 13:34:58 +0200 | [diff] [blame] | 2432 | usb_set_serial_port_data(port, edge_port); |
| 2433 | |
Johan Hovold | 5d8c61b | 2012-10-18 11:43:28 +0200 | [diff] [blame] | 2434 | ret = edge_create_sysfs_attrs(port); |
Johan Hovold | 0fce06d | 2013-06-26 16:47:38 +0200 | [diff] [blame] | 2435 | if (ret) |
| 2436 | goto err; |
Johan Hovold | 5d8c61b | 2012-10-18 11:43:28 +0200 | [diff] [blame] | 2437 | |
Johan Hovold | f40d781 | 2013-01-14 16:52:58 +0100 | [diff] [blame] | 2438 | port->port.closing_wait = msecs_to_jiffies(closing_wait * 10); |
Johan Hovold | d7be622 | 2013-06-26 16:47:23 +0200 | [diff] [blame] | 2439 | port->port.drain_delay = 1; |
Johan Hovold | f40d781 | 2013-01-14 16:52:58 +0100 | [diff] [blame] | 2440 | |
Johan Hovold | 0036153 | 2012-10-17 13:34:58 +0200 | [diff] [blame] | 2441 | return 0; |
Johan Hovold | 0fce06d | 2013-06-26 16:47:38 +0200 | [diff] [blame] | 2442 | err: |
| 2443 | kfree(edge_port); |
| 2444 | |
| 2445 | return ret; |
Johan Hovold | 0036153 | 2012-10-17 13:34:58 +0200 | [diff] [blame] | 2446 | } |
| 2447 | |
| 2448 | static int edge_port_remove(struct usb_serial_port *port) |
| 2449 | { |
| 2450 | struct edgeport_port *edge_port; |
| 2451 | |
| 2452 | edge_port = usb_get_serial_port_data(port); |
Johan Hovold | 0036153 | 2012-10-17 13:34:58 +0200 | [diff] [blame] | 2453 | edge_remove_sysfs_attrs(port); |
Johan Hovold | 0036153 | 2012-10-17 13:34:58 +0200 | [diff] [blame] | 2454 | kfree(edge_port); |
| 2455 | |
| 2456 | return 0; |
| 2457 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2458 | |
Martin K. Petersen | fc4cbd7 | 2007-05-22 15:57:04 -0400 | [diff] [blame] | 2459 | /* Sysfs Attributes */ |
| 2460 | |
Greg Kroah-Hartman | 154547c | 2013-08-23 16:18:34 -0700 | [diff] [blame] | 2461 | static ssize_t uart_mode_show(struct device *dev, |
Martin K. Petersen | fc4cbd7 | 2007-05-22 15:57:04 -0400 | [diff] [blame] | 2462 | struct device_attribute *attr, char *buf) |
| 2463 | { |
| 2464 | struct usb_serial_port *port = to_usb_serial_port(dev); |
| 2465 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 2466 | |
| 2467 | return sprintf(buf, "%d\n", edge_port->bUartMode); |
| 2468 | } |
| 2469 | |
Greg Kroah-Hartman | 154547c | 2013-08-23 16:18:34 -0700 | [diff] [blame] | 2470 | static ssize_t uart_mode_store(struct device *dev, |
Martin K. Petersen | fc4cbd7 | 2007-05-22 15:57:04 -0400 | [diff] [blame] | 2471 | struct device_attribute *attr, const char *valbuf, size_t count) |
| 2472 | { |
| 2473 | struct usb_serial_port *port = to_usb_serial_port(dev); |
| 2474 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 2475 | unsigned int v = simple_strtoul(valbuf, NULL, 0); |
| 2476 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2477 | dev_dbg(dev, "%s: setting uart_mode = %d\n", __func__, v); |
Martin K. Petersen | fc4cbd7 | 2007-05-22 15:57:04 -0400 | [diff] [blame] | 2478 | |
| 2479 | if (v < 256) |
| 2480 | edge_port->bUartMode = v; |
| 2481 | else |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 2482 | 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] | 2483 | |
| 2484 | return count; |
| 2485 | } |
Greg Kroah-Hartman | 154547c | 2013-08-23 16:18:34 -0700 | [diff] [blame] | 2486 | static DEVICE_ATTR_RW(uart_mode); |
Martin K. Petersen | fc4cbd7 | 2007-05-22 15:57:04 -0400 | [diff] [blame] | 2487 | |
| 2488 | static int edge_create_sysfs_attrs(struct usb_serial_port *port) |
| 2489 | { |
| 2490 | return device_create_file(&port->dev, &dev_attr_uart_mode); |
| 2491 | } |
| 2492 | |
| 2493 | static int edge_remove_sysfs_attrs(struct usb_serial_port *port) |
| 2494 | { |
| 2495 | device_remove_file(&port->dev, &dev_attr_uart_mode); |
| 2496 | return 0; |
| 2497 | } |
| 2498 | |
| 2499 | |
Greg Kroah-Hartman | ea65370 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 2500 | static struct usb_serial_driver edgeport_1port_device = { |
Greg Kroah-Hartman | 18fcac3 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 2501 | .driver = { |
Greg Kroah-Hartman | 269bda1 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 2502 | .owner = THIS_MODULE, |
| 2503 | .name = "edgeport_ti_1", |
Greg Kroah-Hartman | 18fcac3 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 2504 | }, |
Greg Kroah-Hartman | 269bda1 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 2505 | .description = "Edgeport TI 1 port adapter", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2506 | .id_table = edgeport_1port_id_table, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2507 | .num_ports = 1, |
| 2508 | .open = edge_open, |
| 2509 | .close = edge_close, |
| 2510 | .throttle = edge_throttle, |
| 2511 | .unthrottle = edge_unthrottle, |
| 2512 | .attach = edge_startup, |
Alan Stern | f9c99bb | 2009-06-02 11:53:55 -0400 | [diff] [blame] | 2513 | .disconnect = edge_disconnect, |
| 2514 | .release = edge_release, |
Johan Hovold | 0036153 | 2012-10-17 13:34:58 +0200 | [diff] [blame] | 2515 | .port_probe = edge_port_probe, |
| 2516 | .port_remove = edge_port_remove, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2517 | .ioctl = edge_ioctl, |
| 2518 | .set_termios = edge_set_termios, |
| 2519 | .tiocmget = edge_tiocmget, |
| 2520 | .tiocmset = edge_tiocmset, |
Johan Hovold | 48ee580 | 2013-03-21 12:37:10 +0100 | [diff] [blame] | 2521 | .tiocmiwait = usb_serial_generic_tiocmiwait, |
Johan Hovold | cf9a9d6 | 2013-03-21 12:37:09 +0100 | [diff] [blame] | 2522 | .get_icount = usb_serial_generic_get_icount, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2523 | .write = edge_write, |
| 2524 | .write_room = edge_write_room, |
| 2525 | .chars_in_buffer = edge_chars_in_buffer, |
Johan Hovold | b16634a | 2013-05-05 20:32:31 +0200 | [diff] [blame] | 2526 | .tx_empty = edge_tx_empty, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2527 | .break_ctl = edge_break, |
| 2528 | .read_int_callback = edge_interrupt_callback, |
| 2529 | .read_bulk_callback = edge_bulk_in_callback, |
| 2530 | .write_bulk_callback = edge_bulk_out_callback, |
| 2531 | }; |
| 2532 | |
Greg Kroah-Hartman | ea65370 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 2533 | static struct usb_serial_driver edgeport_2port_device = { |
Greg Kroah-Hartman | 18fcac3 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 2534 | .driver = { |
Greg Kroah-Hartman | 269bda1 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 2535 | .owner = THIS_MODULE, |
| 2536 | .name = "edgeport_ti_2", |
Greg Kroah-Hartman | 18fcac3 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 2537 | }, |
Greg Kroah-Hartman | 269bda1 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 2538 | .description = "Edgeport TI 2 port adapter", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2539 | .id_table = edgeport_2port_id_table, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2540 | .num_ports = 2, |
| 2541 | .open = edge_open, |
| 2542 | .close = edge_close, |
| 2543 | .throttle = edge_throttle, |
| 2544 | .unthrottle = edge_unthrottle, |
| 2545 | .attach = edge_startup, |
Alan Stern | f9c99bb | 2009-06-02 11:53:55 -0400 | [diff] [blame] | 2546 | .disconnect = edge_disconnect, |
| 2547 | .release = edge_release, |
Johan Hovold | 0036153 | 2012-10-17 13:34:58 +0200 | [diff] [blame] | 2548 | .port_probe = edge_port_probe, |
| 2549 | .port_remove = edge_port_remove, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2550 | .ioctl = edge_ioctl, |
| 2551 | .set_termios = edge_set_termios, |
| 2552 | .tiocmget = edge_tiocmget, |
| 2553 | .tiocmset = edge_tiocmset, |
Johan Hovold | 48ee580 | 2013-03-21 12:37:10 +0100 | [diff] [blame] | 2554 | .tiocmiwait = usb_serial_generic_tiocmiwait, |
Johan Hovold | cf9a9d6 | 2013-03-21 12:37:09 +0100 | [diff] [blame] | 2555 | .get_icount = usb_serial_generic_get_icount, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2556 | .write = edge_write, |
| 2557 | .write_room = edge_write_room, |
| 2558 | .chars_in_buffer = edge_chars_in_buffer, |
Johan Hovold | b16634a | 2013-05-05 20:32:31 +0200 | [diff] [blame] | 2559 | .tx_empty = edge_tx_empty, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2560 | .break_ctl = edge_break, |
| 2561 | .read_int_callback = edge_interrupt_callback, |
| 2562 | .read_bulk_callback = edge_bulk_in_callback, |
| 2563 | .write_bulk_callback = edge_bulk_out_callback, |
| 2564 | }; |
| 2565 | |
Alan Stern | 7dbe246 | 2012-02-23 14:56:57 -0500 | [diff] [blame] | 2566 | static struct usb_serial_driver * const serial_drivers[] = { |
| 2567 | &edgeport_1port_device, &edgeport_2port_device, NULL |
| 2568 | }; |
| 2569 | |
Greg Kroah-Hartman | 68e2411 | 2012-05-08 15:46:14 -0700 | [diff] [blame] | 2570 | module_usb_serial_driver(serial_drivers, id_table_combined); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2571 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2572 | MODULE_AUTHOR(DRIVER_AUTHOR); |
| 2573 | MODULE_DESCRIPTION(DRIVER_DESC); |
| 2574 | MODULE_LICENSE("GPL"); |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 2575 | MODULE_FIRMWARE("edgeport/down3.bin"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2576 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2577 | module_param(closing_wait, int, S_IRUGO | S_IWUSR); |
| 2578 | MODULE_PARM_DESC(closing_wait, "Maximum wait for data to drain, in .01 secs"); |
| 2579 | |
| 2580 | module_param(ignore_cpu_rev, bool, S_IRUGO | S_IWUSR); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2581 | MODULE_PARM_DESC(ignore_cpu_rev, |
| 2582 | "Ignore the cpu revision when connecting to a device"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2583 | |
Martin K. Petersen | fc4cbd7 | 2007-05-22 15:57:04 -0400 | [diff] [blame] | 2584 | module_param(default_uart_mode, int, S_IRUGO | S_IWUSR); |
| 2585 | MODULE_PARM_DESC(default_uart_mode, "Default uart_mode, 0=RS232, ..."); |