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 | |
| 67 | #define EDGE_OUT_BUF_SIZE 1024 |
| 68 | |
| 69 | |
| 70 | /* Product information read from the Edgeport */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 71 | struct product_info { |
| 72 | int TiMode; /* Current TI Mode */ |
| 73 | __u8 hardware_type; /* Type of hardware */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 74 | } __attribute__((packed)); |
| 75 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 76 | struct edgeport_port { |
| 77 | __u16 uart_base; |
| 78 | __u16 dma_address; |
| 79 | __u8 shadow_msr; |
| 80 | __u8 shadow_mcr; |
| 81 | __u8 shadow_lsr; |
| 82 | __u8 lsr_mask; |
Martin Olsson | 19af5cd | 2009-04-23 11:37:37 +0200 | [diff] [blame] | 83 | __u32 ump_read_timeout; /* Number of milliseconds the UMP will |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 84 | wait without data before completing |
| 85 | a read short */ |
| 86 | int baud_rate; |
| 87 | int close_pending; |
| 88 | int lsr_event; |
Johan Hovold | 48ee580 | 2013-03-21 12:37:10 +0100 | [diff] [blame] | 89 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 90 | struct edgeport_serial *edge_serial; |
| 91 | struct usb_serial_port *port; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 92 | __u8 bUartMode; /* Port type, 0: RS232, etc. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 93 | spinlock_t ep_lock; |
| 94 | int ep_read_urb_state; |
| 95 | int ep_write_urb_in_use; |
Johan Hovold | d733cec | 2010-05-19 00:01:37 +0200 | [diff] [blame] | 96 | struct kfifo write_fifo; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 97 | }; |
| 98 | |
| 99 | struct edgeport_serial { |
| 100 | struct product_info product_info; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 101 | u8 TI_I2C_Type; /* Type of I2C in UMP */ |
| 102 | u8 TiReadI2C; /* Set to TRUE if we have read the |
| 103 | I2c in Boot Mode */ |
Matthias Kaehlcke | 241ca64 | 2007-12-04 16:15:40 +0100 | [diff] [blame] | 104 | struct mutex es_lock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 105 | int num_ports_open; |
| 106 | struct usb_serial *serial; |
| 107 | }; |
| 108 | |
| 109 | |
| 110 | /* Devices that this driver supports */ |
Németh Márton | 7d40d7e | 2010-01-10 15:34:24 +0100 | [diff] [blame] | 111 | static const struct usb_device_id edgeport_1port_id_table[] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 112 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_1) }, |
| 113 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1) }, |
| 114 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1I) }, |
| 115 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROXIMITY) }, |
| 116 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOTION) }, |
| 117 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOISTURE) }, |
| 118 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_TEMPERATURE) }, |
| 119 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_HUMIDITY) }, |
| 120 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_POWER) }, |
| 121 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_LIGHT) }, |
| 122 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_RADIATION) }, |
| 123 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_DISTANCE) }, |
| 124 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_ACCELERATION) }, |
| 125 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROX_DIST) }, |
| 126 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_HP4CD) }, |
| 127 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_PCI) }, |
| 128 | { } |
| 129 | }; |
| 130 | |
Németh Márton | 7d40d7e | 2010-01-10 15:34:24 +0100 | [diff] [blame] | 131 | static const struct usb_device_id edgeport_2port_id_table[] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 132 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2) }, |
| 133 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2C) }, |
| 134 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2I) }, |
| 135 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_421) }, |
| 136 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21) }, |
| 137 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_42) }, |
| 138 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4) }, |
| 139 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4I) }, |
| 140 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22I) }, |
| 141 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_221C) }, |
| 142 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22C) }, |
| 143 | { 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] | 144 | /* 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] | 145 | { 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] | 146 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8) }, |
| 147 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8S) }, |
| 148 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416) }, |
| 149 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416B) }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 150 | { } |
| 151 | }; |
| 152 | |
| 153 | /* Devices that this driver supports */ |
Németh Márton | 7d40d7e | 2010-01-10 15:34:24 +0100 | [diff] [blame] | 154 | static const struct usb_device_id id_table_combined[] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 155 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_1) }, |
| 156 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1) }, |
| 157 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1I) }, |
| 158 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROXIMITY) }, |
| 159 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOTION) }, |
| 160 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOISTURE) }, |
| 161 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_TEMPERATURE) }, |
| 162 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_HUMIDITY) }, |
| 163 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_POWER) }, |
| 164 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_LIGHT) }, |
| 165 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_RADIATION) }, |
| 166 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_DISTANCE) }, |
| 167 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_ACCELERATION) }, |
| 168 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROX_DIST) }, |
| 169 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_HP4CD) }, |
| 170 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_PCI) }, |
| 171 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2) }, |
| 172 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2C) }, |
| 173 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2I) }, |
| 174 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_421) }, |
| 175 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21) }, |
| 176 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_42) }, |
| 177 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4) }, |
| 178 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4I) }, |
| 179 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22I) }, |
| 180 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_221C) }, |
| 181 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22C) }, |
| 182 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21C) }, |
| 183 | { 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] | 184 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8) }, |
| 185 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8S) }, |
| 186 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416) }, |
| 187 | { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416B) }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 188 | { } |
| 189 | }; |
| 190 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 191 | MODULE_DEVICE_TABLE(usb, id_table_combined); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 192 | |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 193 | static unsigned char OperationalMajorVersion; |
| 194 | static unsigned char OperationalMinorVersion; |
| 195 | static unsigned short OperationalBuildNumber; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 196 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 197 | static int closing_wait = EDGE_CLOSING_WAIT; |
Rusty Russell | 90ab5ee | 2012-01-13 09:32:20 +1030 | [diff] [blame] | 198 | static bool ignore_cpu_rev; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 199 | static int default_uart_mode; /* RS232 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | |
Jiri Slaby | 2e124b4 | 2013-01-03 15:53:06 +0100 | [diff] [blame] | 201 | static void edge_tty_recv(struct usb_serial_port *port, unsigned char *data, |
| 202 | int length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 203 | |
| 204 | static void stop_read(struct edgeport_port *edge_port); |
| 205 | static int restart_read(struct edgeport_port *edge_port); |
| 206 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 207 | static void edge_set_termios(struct tty_struct *tty, |
| 208 | struct usb_serial_port *port, struct ktermios *old_termios); |
Jiri Slaby | ae3759c | 2013-04-04 22:41:01 +0200 | [diff] [blame] | 209 | 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] | 210 | |
Martin K. Petersen | fc4cbd7 | 2007-05-22 15:57:04 -0400 | [diff] [blame] | 211 | /* sysfs attributes */ |
| 212 | static int edge_create_sysfs_attrs(struct usb_serial_port *port); |
| 213 | static int edge_remove_sysfs_attrs(struct usb_serial_port *port); |
| 214 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 215 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 216 | static int ti_vread_sync(struct usb_device *dev, __u8 request, |
| 217 | __u16 value, __u16 index, u8 *data, int size) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 218 | { |
| 219 | int status; |
| 220 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 221 | status = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), request, |
| 222 | (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN), |
| 223 | value, index, data, size, 1000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 224 | if (status < 0) |
| 225 | return status; |
| 226 | if (status != size) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 227 | dev_dbg(&dev->dev, "%s - wanted to write %d, but only wrote %d\n", |
| 228 | __func__, size, status); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 229 | return -ECOMM; |
| 230 | } |
| 231 | return 0; |
| 232 | } |
| 233 | |
| 234 | static int ti_vsend_sync(struct usb_device *dev, __u8 request, |
| 235 | __u16 value, __u16 index, u8 *data, int size) |
| 236 | { |
| 237 | int status; |
| 238 | |
| 239 | status = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), request, |
| 240 | (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT), |
| 241 | value, index, data, size, 1000); |
| 242 | if (status < 0) |
| 243 | return status; |
| 244 | if (status != size) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 245 | dev_dbg(&dev->dev, "%s - wanted to write %d, but only wrote %d\n", |
| 246 | __func__, size, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 247 | return -ECOMM; |
| 248 | } |
| 249 | return 0; |
| 250 | } |
| 251 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 252 | static int send_cmd(struct usb_device *dev, __u8 command, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 253 | __u8 moduleid, __u16 value, u8 *data, |
| 254 | int size) |
| 255 | { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 256 | return ti_vsend_sync(dev, command, value, moduleid, data, size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 257 | } |
| 258 | |
| 259 | /* clear tx/rx buffers and fifo in TI UMP */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 260 | static int purge_port(struct usb_serial_port *port, __u16 mask) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 261 | { |
| 262 | int port_number = port->number - port->serial->minor; |
| 263 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 264 | 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] | 265 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 266 | return send_cmd(port->serial->dev, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 267 | UMPC_PURGE_PORT, |
| 268 | (__u8)(UMPM_UART1_PORT + port_number), |
| 269 | mask, |
| 270 | NULL, |
| 271 | 0); |
| 272 | } |
| 273 | |
| 274 | /** |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 275 | * read_download_mem - Read edgeport memory from TI chip |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 276 | * @dev: usb device pointer |
| 277 | * @start_address: Device CPU address at which to read |
| 278 | * @length: Length of above data |
| 279 | * @address_type: Can read both XDATA and I2C |
| 280 | * @buffer: pointer to input data buffer |
| 281 | */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 282 | static int read_download_mem(struct usb_device *dev, int start_address, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 283 | int length, __u8 address_type, __u8 *buffer) |
| 284 | { |
| 285 | int status = 0; |
| 286 | __u8 read_length; |
| 287 | __be16 be_start_address; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 288 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 289 | 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] | 290 | |
| 291 | /* Read in blocks of 64 bytes |
| 292 | * (TI firmware can't handle more than 64 byte reads) |
| 293 | */ |
| 294 | while (length) { |
| 295 | if (length > 64) |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 296 | read_length = 64; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 297 | else |
| 298 | read_length = (__u8)length; |
| 299 | |
| 300 | if (read_length > 1) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 301 | 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] | 302 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 303 | be_start_address = cpu_to_be16(start_address); |
| 304 | status = ti_vread_sync(dev, UMPC_MEMORY_READ, |
| 305 | (__u16)address_type, |
| 306 | (__force __u16)be_start_address, |
| 307 | buffer, read_length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 308 | |
| 309 | if (status) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 310 | dev_dbg(&dev->dev, "%s - ERROR %x\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 311 | return status; |
| 312 | } |
| 313 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 314 | if (read_length > 1) |
Greg Kroah-Hartman | 59d33f2 | 2012-09-18 09:58:57 +0100 | [diff] [blame] | 315 | usb_serial_debug_data(&dev->dev, __func__, read_length, buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 316 | |
| 317 | /* Update pointers/length */ |
| 318 | start_address += read_length; |
| 319 | buffer += read_length; |
| 320 | length -= read_length; |
| 321 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 322 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 323 | return status; |
| 324 | } |
| 325 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 326 | static int read_ram(struct usb_device *dev, int start_address, |
| 327 | int length, __u8 *buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 328 | { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 329 | return read_download_mem(dev, start_address, length, |
| 330 | DTK_ADDR_SPACE_XDATA, buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 331 | } |
| 332 | |
| 333 | /* Read edgeport memory to a given block */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 334 | static int read_boot_mem(struct edgeport_serial *serial, |
| 335 | int start_address, int length, __u8 *buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 336 | { |
| 337 | int status = 0; |
| 338 | int i; |
| 339 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 340 | for (i = 0; i < length; i++) { |
| 341 | status = ti_vread_sync(serial->serial->dev, |
| 342 | UMPC_MEMORY_READ, serial->TI_I2C_Type, |
| 343 | (__u16)(start_address+i), &buffer[i], 0x01); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 344 | if (status) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 345 | dev_dbg(&serial->serial->dev->dev, "%s - ERROR %x\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 346 | return status; |
| 347 | } |
| 348 | } |
| 349 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 350 | dev_dbg(&serial->serial->dev->dev, "%s - start_address = %x, length = %d\n", |
| 351 | __func__, start_address, length); |
Greg Kroah-Hartman | 59d33f2 | 2012-09-18 09:58:57 +0100 | [diff] [blame] | 352 | usb_serial_debug_data(&serial->serial->dev->dev, __func__, length, buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 353 | |
| 354 | serial->TiReadI2C = 1; |
| 355 | |
| 356 | return status; |
| 357 | } |
| 358 | |
| 359 | /* Write given block to TI EPROM memory */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 360 | static int write_boot_mem(struct edgeport_serial *serial, |
| 361 | int start_address, int length, __u8 *buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 362 | { |
| 363 | int status = 0; |
| 364 | int i; |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 365 | u8 *temp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 366 | |
| 367 | /* Must do a read before write */ |
| 368 | if (!serial->TiReadI2C) { |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 369 | temp = kmalloc(1, GFP_KERNEL); |
| 370 | if (!temp) { |
| 371 | dev_err(&serial->serial->dev->dev, |
| 372 | "%s - out of memory\n", __func__); |
| 373 | return -ENOMEM; |
| 374 | } |
| 375 | status = read_boot_mem(serial, 0, 1, temp); |
| 376 | kfree(temp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 377 | if (status) |
| 378 | return status; |
| 379 | } |
| 380 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 381 | for (i = 0; i < length; ++i) { |
| 382 | status = ti_vsend_sync(serial->serial->dev, |
| 383 | UMPC_MEMORY_WRITE, buffer[i], |
| 384 | (__u16)(i + start_address), NULL, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 385 | if (status) |
| 386 | return status; |
| 387 | } |
| 388 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 389 | 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] | 390 | usb_serial_debug_data(&serial->serial->dev->dev, __func__, length, buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 391 | |
| 392 | return status; |
| 393 | } |
| 394 | |
| 395 | |
| 396 | /* Write edgeport I2C memory to TI chip */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 397 | static int write_i2c_mem(struct edgeport_serial *serial, |
| 398 | int start_address, int length, __u8 address_type, __u8 *buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 399 | { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 400 | struct device *dev = &serial->serial->dev->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 401 | int status = 0; |
| 402 | int write_length; |
| 403 | __be16 be_start_address; |
| 404 | |
| 405 | /* 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] | 406 | |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 407 | /* calculate the number of bytes left in the first page */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 408 | write_length = EPROM_PAGE_SIZE - |
| 409 | (start_address & (EPROM_PAGE_SIZE - 1)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 410 | |
| 411 | if (write_length > length) |
| 412 | write_length = length; |
| 413 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 414 | dev_dbg(dev, "%s - BytesInFirstPage Addr = %x, length = %d\n", |
| 415 | __func__, start_address, write_length); |
Greg Kroah-Hartman | 59d33f2 | 2012-09-18 09:58:57 +0100 | [diff] [blame] | 416 | usb_serial_debug_data(dev, __func__, write_length, buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 417 | |
| 418 | /* Write first page */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 419 | be_start_address = cpu_to_be16(start_address); |
| 420 | status = ti_vsend_sync(serial->serial->dev, |
| 421 | UMPC_MEMORY_WRITE, (__u16)address_type, |
| 422 | (__force __u16)be_start_address, |
| 423 | buffer, write_length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 424 | if (status) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 425 | dev_dbg(dev, "%s - ERROR %d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 426 | return status; |
| 427 | } |
| 428 | |
| 429 | length -= write_length; |
| 430 | start_address += write_length; |
| 431 | buffer += write_length; |
| 432 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 433 | /* We should be aligned now -- can write |
| 434 | max page size bytes at a time */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 435 | while (length) { |
| 436 | if (length > EPROM_PAGE_SIZE) |
| 437 | write_length = EPROM_PAGE_SIZE; |
| 438 | else |
| 439 | write_length = length; |
| 440 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 441 | dev_dbg(dev, "%s - Page Write Addr = %x, length = %d\n", |
| 442 | __func__, start_address, write_length); |
Greg Kroah-Hartman | 59d33f2 | 2012-09-18 09:58:57 +0100 | [diff] [blame] | 443 | usb_serial_debug_data(dev, __func__, write_length, buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 444 | |
| 445 | /* Write next page */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 446 | be_start_address = cpu_to_be16(start_address); |
| 447 | status = ti_vsend_sync(serial->serial->dev, UMPC_MEMORY_WRITE, |
| 448 | (__u16)address_type, |
| 449 | (__force __u16)be_start_address, |
| 450 | buffer, write_length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 451 | if (status) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 452 | dev_err(dev, "%s - ERROR %d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 453 | return status; |
| 454 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 455 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 456 | length -= write_length; |
| 457 | start_address += write_length; |
| 458 | buffer += write_length; |
| 459 | } |
| 460 | return status; |
| 461 | } |
| 462 | |
| 463 | /* Examine the UMP DMA registers and LSR |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 464 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 465 | * Check the MSBit of the X and Y DMA byte count registers. |
| 466 | * A zero in this bit indicates that the TX DMA buffers are empty |
| 467 | * then check the TX Empty bit in the UART. |
| 468 | */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 469 | static int tx_active(struct edgeport_port *port) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 470 | { |
| 471 | int status; |
| 472 | struct out_endpoint_desc_block *oedb; |
| 473 | __u8 *lsr; |
| 474 | int bytes_left = 0; |
| 475 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 476 | oedb = kmalloc(sizeof(*oedb), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 477 | if (!oedb) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 478 | dev_err(&port->port->dev, "%s - out of memory\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 479 | return -ENOMEM; |
| 480 | } |
| 481 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 482 | lsr = kmalloc(1, GFP_KERNEL); /* Sigh, that's right, just one byte, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 483 | as not all platforms can do DMA |
| 484 | from stack */ |
| 485 | if (!lsr) { |
| 486 | kfree(oedb); |
| 487 | return -ENOMEM; |
| 488 | } |
| 489 | /* Read the DMA Count Registers */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 490 | status = read_ram(port->port->serial->dev, port->dma_address, |
| 491 | sizeof(*oedb), (void *)oedb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 492 | if (status) |
| 493 | goto exit_is_tx_active; |
| 494 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 495 | 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] | 496 | |
| 497 | /* and the LSR */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 498 | status = read_ram(port->port->serial->dev, |
| 499 | port->uart_base + UMPMEM_OFFS_UART_LSR, 1, lsr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 500 | |
| 501 | if (status) |
| 502 | goto exit_is_tx_active; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 503 | dev_dbg(&port->port->dev, "%s - LSR = 0x%X\n", __func__, *lsr); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 504 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 505 | /* If either buffer has data or we are transmitting then return TRUE */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 506 | if ((oedb->XByteCount & 0x80) != 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 507 | bytes_left += 64; |
| 508 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 509 | if ((*lsr & UMP_UART_LSR_TX_MASK) == 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 510 | bytes_left += 1; |
| 511 | |
| 512 | /* We return Not Active if we get any kind of error */ |
| 513 | exit_is_tx_active: |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 514 | dev_dbg(&port->port->dev, "%s - return %d\n", __func__, bytes_left); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 515 | |
| 516 | kfree(lsr); |
| 517 | kfree(oedb); |
| 518 | return bytes_left; |
| 519 | } |
| 520 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 521 | static int choose_config(struct usb_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 522 | { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 523 | /* |
| 524 | * There may be multiple configurations on this device, in which case |
| 525 | * we would need to read and parse all of them to find out which one |
| 526 | * we want. However, we just support one config at this point, |
| 527 | * configuration # 1, which is Config Descriptor 0. |
| 528 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 529 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 530 | dev_dbg(&dev->dev, "%s - Number of Interfaces = %d\n", |
| 531 | __func__, dev->config->desc.bNumInterfaces); |
| 532 | dev_dbg(&dev->dev, "%s - MAX Power = %d\n", |
| 533 | __func__, dev->config->desc.bMaxPower * 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 534 | |
| 535 | if (dev->config->desc.bNumInterfaces != 1) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 536 | dev_err(&dev->dev, "%s - bNumInterfaces is not 1, ERROR!\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 537 | return -ENODEV; |
| 538 | } |
| 539 | |
| 540 | return 0; |
| 541 | } |
| 542 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 543 | static int read_rom(struct edgeport_serial *serial, |
| 544 | int start_address, int length, __u8 *buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 545 | { |
| 546 | int status; |
| 547 | |
| 548 | if (serial->product_info.TiMode == TI_MODE_DOWNLOAD) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 549 | status = read_download_mem(serial->serial->dev, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 550 | start_address, |
| 551 | length, |
| 552 | serial->TI_I2C_Type, |
| 553 | buffer); |
| 554 | } else { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 555 | status = read_boot_mem(serial, start_address, length, |
| 556 | buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 557 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 558 | return status; |
| 559 | } |
| 560 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 561 | static int write_rom(struct edgeport_serial *serial, int start_address, |
| 562 | int length, __u8 *buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 563 | { |
| 564 | if (serial->product_info.TiMode == TI_MODE_BOOT) |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 565 | return write_boot_mem(serial, start_address, length, |
| 566 | buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 567 | |
| 568 | if (serial->product_info.TiMode == TI_MODE_DOWNLOAD) |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 569 | return write_i2c_mem(serial, start_address, length, |
| 570 | serial->TI_I2C_Type, buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 571 | return -EINVAL; |
| 572 | } |
| 573 | |
| 574 | |
| 575 | |
| 576 | /* Read a descriptor header from I2C based on type */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 577 | static int get_descriptor_addr(struct edgeport_serial *serial, |
| 578 | int desc_type, struct ti_i2c_desc *rom_desc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 579 | { |
| 580 | int start_address; |
| 581 | int status; |
| 582 | |
| 583 | /* Search for requested descriptor in I2C */ |
| 584 | start_address = 2; |
| 585 | do { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 586 | status = read_rom(serial, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 587 | start_address, |
| 588 | sizeof(struct ti_i2c_desc), |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 589 | (__u8 *)rom_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 590 | if (status) |
| 591 | return 0; |
| 592 | |
| 593 | if (rom_desc->Type == desc_type) |
| 594 | return start_address; |
| 595 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 596 | start_address = start_address + sizeof(struct ti_i2c_desc) |
| 597 | + rom_desc->Size; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 598 | |
| 599 | } while ((start_address < TI_MAX_I2C_SIZE) && rom_desc->Type); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 600 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 601 | return 0; |
| 602 | } |
| 603 | |
| 604 | /* Validate descriptor checksum */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 605 | static int valid_csum(struct ti_i2c_desc *rom_desc, __u8 *buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 606 | { |
| 607 | __u16 i; |
| 608 | __u8 cs = 0; |
| 609 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 610 | for (i = 0; i < rom_desc->Size; i++) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 611 | cs = (__u8)(cs + buffer[i]); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 612 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 613 | if (cs != rom_desc->CheckSum) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 614 | pr_debug("%s - Mismatch %x - %x", __func__, rom_desc->CheckSum, cs); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 615 | return -EINVAL; |
| 616 | } |
| 617 | return 0; |
| 618 | } |
| 619 | |
| 620 | /* Make sure that the I2C image is good */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 621 | static int check_i2c_image(struct edgeport_serial *serial) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 622 | { |
| 623 | struct device *dev = &serial->serial->dev->dev; |
| 624 | int status = 0; |
| 625 | struct ti_i2c_desc *rom_desc; |
| 626 | int start_address = 2; |
| 627 | __u8 *buffer; |
| 628 | __u16 ttype; |
| 629 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 630 | rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 631 | if (!rom_desc) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 632 | dev_err(dev, "%s - out of memory\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 633 | return -ENOMEM; |
| 634 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 635 | buffer = kmalloc(TI_MAX_I2C_SIZE, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 636 | if (!buffer) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 637 | dev_err(dev, "%s - out of memory when allocating buffer\n", |
| 638 | __func__); |
| 639 | kfree(rom_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 640 | return -ENOMEM; |
| 641 | } |
| 642 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 643 | /* Read the first byte (Signature0) must be 0x52 or 0x10 */ |
| 644 | status = read_rom(serial, 0, 1, buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 645 | if (status) |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 646 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 647 | |
| 648 | if (*buffer != UMP5152 && *buffer != UMP3410) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 649 | dev_err(dev, "%s - invalid buffer signature\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 650 | status = -ENODEV; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 651 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 652 | } |
| 653 | |
| 654 | do { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 655 | /* Validate the I2C */ |
| 656 | status = read_rom(serial, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 657 | start_address, |
| 658 | sizeof(struct ti_i2c_desc), |
| 659 | (__u8 *)rom_desc); |
| 660 | if (status) |
| 661 | break; |
| 662 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 663 | if ((start_address + sizeof(struct ti_i2c_desc) + |
| 664 | rom_desc->Size) > TI_MAX_I2C_SIZE) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 665 | status = -ENODEV; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 666 | dev_dbg(dev, "%s - structure too big, erroring out.\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 667 | break; |
| 668 | } |
| 669 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 670 | dev_dbg(dev, "%s Type = 0x%x\n", __func__, rom_desc->Type); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 671 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 672 | /* Skip type 2 record */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 673 | ttype = rom_desc->Type & 0x0f; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 674 | if (ttype != I2C_DESC_TYPE_FIRMWARE_BASIC |
| 675 | && ttype != I2C_DESC_TYPE_FIRMWARE_AUTO) { |
| 676 | /* Read the descriptor data */ |
| 677 | status = read_rom(serial, start_address + |
| 678 | sizeof(struct ti_i2c_desc), |
| 679 | rom_desc->Size, buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 680 | if (status) |
| 681 | break; |
| 682 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 683 | status = valid_csum(rom_desc, buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 684 | if (status) |
| 685 | break; |
| 686 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 687 | start_address = start_address + sizeof(struct ti_i2c_desc) + |
| 688 | rom_desc->Size; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 689 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 690 | } while ((rom_desc->Type != I2C_DESC_TYPE_ION) && |
| 691 | (start_address < TI_MAX_I2C_SIZE)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 692 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 693 | if ((rom_desc->Type != I2C_DESC_TYPE_ION) || |
| 694 | (start_address > TI_MAX_I2C_SIZE)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 695 | status = -ENODEV; |
| 696 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 697 | out: |
| 698 | kfree(buffer); |
| 699 | kfree(rom_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 700 | return status; |
| 701 | } |
| 702 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 703 | static int get_manuf_info(struct edgeport_serial *serial, __u8 *buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 704 | { |
| 705 | int status; |
| 706 | int start_address; |
| 707 | struct ti_i2c_desc *rom_desc; |
| 708 | struct edge_ti_manuf_descriptor *desc; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 709 | struct device *dev = &serial->serial->dev->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 710 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 711 | rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 712 | if (!rom_desc) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 713 | dev_err(dev, "%s - out of memory\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 714 | return -ENOMEM; |
| 715 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 716 | start_address = get_descriptor_addr(serial, I2C_DESC_TYPE_ION, |
| 717 | rom_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 718 | |
| 719 | if (!start_address) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 720 | dev_dbg(dev, "%s - Edge Descriptor not found in I2C\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 721 | status = -ENODEV; |
| 722 | goto exit; |
| 723 | } |
| 724 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 725 | /* Read the descriptor data */ |
| 726 | status = read_rom(serial, start_address+sizeof(struct ti_i2c_desc), |
| 727 | rom_desc->Size, buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 728 | if (status) |
| 729 | goto exit; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 730 | |
| 731 | status = valid_csum(rom_desc, buffer); |
| 732 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 733 | desc = (struct edge_ti_manuf_descriptor *)buffer; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 734 | dev_dbg(dev, "%s - IonConfig 0x%x\n", __func__, desc->IonConfig); |
| 735 | dev_dbg(dev, "%s - Version %d\n", __func__, desc->Version); |
| 736 | dev_dbg(dev, "%s - Cpu/Board 0x%x\n", __func__, desc->CpuRev_BoardRev); |
| 737 | dev_dbg(dev, "%s - NumPorts %d\n", __func__, desc->NumPorts); |
| 738 | dev_dbg(dev, "%s - NumVirtualPorts %d\n", __func__, desc->NumVirtualPorts); |
| 739 | dev_dbg(dev, "%s - TotalPorts %d\n", __func__, desc->TotalPorts); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 740 | |
| 741 | exit: |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 742 | kfree(rom_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 743 | return status; |
| 744 | } |
| 745 | |
| 746 | /* Build firmware header used for firmware update */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 747 | static int build_i2c_fw_hdr(__u8 *header, struct device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 748 | { |
| 749 | __u8 *buffer; |
| 750 | int buffer_size; |
| 751 | int i; |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 752 | int err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 753 | __u8 cs = 0; |
| 754 | struct ti_i2c_desc *i2c_header; |
| 755 | struct ti_i2c_image_header *img_header; |
| 756 | struct ti_i2c_firmware_rec *firmware_rec; |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 757 | const struct firmware *fw; |
| 758 | const char *fw_name = "edgeport/down3.bin"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 759 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 760 | /* In order to update the I2C firmware we must change the type 2 record |
| 761 | * to type 0xF2. This will force the UMP to come up in Boot Mode. |
| 762 | * Then while in boot mode, the driver will download the latest |
| 763 | * firmware (padded to 15.5k) into the UMP ram. And finally when the |
| 764 | * device comes back up in download mode the driver will cause the new |
| 765 | * firmware to be copied from the UMP Ram to I2C and the firmware will |
| 766 | * update the record type from 0xf2 to 0x02. |
| 767 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 768 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 769 | /* Allocate a 15.5k buffer + 2 bytes for version number |
| 770 | * (Firmware Record) */ |
| 771 | buffer_size = (((1024 * 16) - 512 ) + |
| 772 | sizeof(struct ti_i2c_firmware_rec)); |
| 773 | |
| 774 | buffer = kmalloc(buffer_size, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 775 | if (!buffer) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 776 | dev_err(dev, "%s - out of memory\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 777 | return -ENOMEM; |
| 778 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 779 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 780 | // Set entire image of 0xffs |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 781 | memset(buffer, 0xff, buffer_size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 782 | |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 783 | err = request_firmware(&fw, fw_name, dev); |
| 784 | if (err) { |
Greg Kroah-Hartman | d9bb03d | 2012-09-18 16:59:23 +0100 | [diff] [blame] | 785 | dev_err(dev, "Failed to load image \"%s\" err %d\n", |
| 786 | fw_name, err); |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 787 | kfree(buffer); |
| 788 | return err; |
| 789 | } |
| 790 | |
| 791 | /* Save Download Version Number */ |
| 792 | OperationalMajorVersion = fw->data[0]; |
| 793 | OperationalMinorVersion = fw->data[1]; |
| 794 | OperationalBuildNumber = fw->data[2] | (fw->data[3] << 8); |
| 795 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 796 | /* Copy version number into firmware record */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 797 | firmware_rec = (struct ti_i2c_firmware_rec *)buffer; |
| 798 | |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 799 | firmware_rec->Ver_Major = OperationalMajorVersion; |
| 800 | firmware_rec->Ver_Minor = OperationalMinorVersion; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 801 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 802 | /* Pointer to fw_down memory image */ |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 803 | img_header = (struct ti_i2c_image_header *)&fw->data[4]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 804 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 805 | memcpy(buffer + sizeof(struct ti_i2c_firmware_rec), |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 806 | &fw->data[4 + sizeof(struct ti_i2c_image_header)], |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 807 | le16_to_cpu(img_header->Length)); |
| 808 | |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 809 | release_firmware(fw); |
| 810 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 811 | for (i=0; i < buffer_size; i++) { |
| 812 | cs = (__u8)(cs + buffer[i]); |
| 813 | } |
| 814 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 815 | kfree(buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 816 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 817 | /* Build new header */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 818 | i2c_header = (struct ti_i2c_desc *)header; |
| 819 | firmware_rec = (struct ti_i2c_firmware_rec*)i2c_header->Data; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 820 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 821 | i2c_header->Type = I2C_DESC_TYPE_FIRMWARE_BLANK; |
| 822 | i2c_header->Size = (__u16)buffer_size; |
| 823 | i2c_header->CheckSum = cs; |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 824 | firmware_rec->Ver_Major = OperationalMajorVersion; |
| 825 | firmware_rec->Ver_Minor = OperationalMinorVersion; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 826 | |
| 827 | return 0; |
| 828 | } |
| 829 | |
| 830 | /* Try to figure out what type of I2c we have */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 831 | static int i2c_type_bootmode(struct edgeport_serial *serial) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 832 | { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 833 | struct device *dev = &serial->serial->dev->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 834 | int status; |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 835 | u8 *data; |
| 836 | |
| 837 | data = kmalloc(1, GFP_KERNEL); |
| 838 | if (!data) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 839 | dev_err(dev, "%s - out of memory\n", __func__); |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 840 | return -ENOMEM; |
| 841 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 842 | |
| 843 | /* Try to read type 2 */ |
| 844 | status = ti_vread_sync(serial->serial->dev, UMPC_MEMORY_READ, |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 845 | DTK_ADDR_SPACE_I2C_TYPE_II, 0, data, 0x01); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 846 | if (status) |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 847 | dev_dbg(dev, "%s - read 2 status error = %d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 848 | else |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 849 | dev_dbg(dev, "%s - read 2 data = 0x%x\n", __func__, *data); |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 850 | if ((!status) && (*data == UMP5152 || *data == UMP3410)) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 851 | dev_dbg(dev, "%s - ROM_TYPE_II\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 852 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 853 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 854 | } |
| 855 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 856 | /* Try to read type 3 */ |
| 857 | status = ti_vread_sync(serial->serial->dev, UMPC_MEMORY_READ, |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 858 | DTK_ADDR_SPACE_I2C_TYPE_III, 0, data, 0x01); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 859 | if (status) |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 860 | dev_dbg(dev, "%s - read 3 status error = %d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 861 | else |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 862 | dev_dbg(dev, "%s - read 2 data = 0x%x\n", __func__, *data); |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 863 | if ((!status) && (*data == UMP5152 || *data == UMP3410)) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 864 | dev_dbg(dev, "%s - ROM_TYPE_III\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 865 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_III; |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 866 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 867 | } |
| 868 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 869 | dev_dbg(dev, "%s - Unknown\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 870 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 871 | status = -ENODEV; |
| 872 | out: |
| 873 | kfree(data); |
| 874 | return status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 875 | } |
| 876 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 877 | static int bulk_xfer(struct usb_serial *serial, void *buffer, |
| 878 | int length, int *num_sent) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 879 | { |
| 880 | int status; |
| 881 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 882 | status = usb_bulk_msg(serial->dev, |
| 883 | usb_sndbulkpipe(serial->dev, |
| 884 | serial->port[0]->bulk_out_endpointAddress), |
| 885 | buffer, length, num_sent, 1000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 886 | return status; |
| 887 | } |
| 888 | |
| 889 | /* Download given firmware image to the device (IN BOOT MODE) */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 890 | static int download_code(struct edgeport_serial *serial, __u8 *image, |
| 891 | int image_length) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 892 | { |
| 893 | int status = 0; |
| 894 | int pos; |
| 895 | int transfer; |
| 896 | int done; |
| 897 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 898 | /* Transfer firmware image */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 899 | for (pos = 0; pos < image_length; ) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 900 | /* Read the next buffer from file */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 901 | transfer = image_length - pos; |
| 902 | if (transfer > EDGE_FW_BULK_MAX_PACKET_SIZE) |
| 903 | transfer = EDGE_FW_BULK_MAX_PACKET_SIZE; |
| 904 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 905 | /* Transfer data */ |
| 906 | status = bulk_xfer(serial->serial, &image[pos], |
| 907 | transfer, &done); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 908 | if (status) |
| 909 | break; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 910 | /* Advance buffer pointer */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 911 | pos += done; |
| 912 | } |
| 913 | |
| 914 | return status; |
| 915 | } |
| 916 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 917 | /* FIXME!!! */ |
| 918 | static int config_boot_dev(struct usb_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 919 | { |
| 920 | return 0; |
| 921 | } |
| 922 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 923 | static int ti_cpu_rev(struct edge_ti_manuf_descriptor *desc) |
| 924 | { |
| 925 | return TI_GET_CPU_REVISION(desc->CpuRev_BoardRev); |
| 926 | } |
| 927 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 928 | /** |
| 929 | * DownloadTIFirmware - Download run-time operating firmware to the TI5052 |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 930 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 931 | * This routine downloads the main operating code into the TI5052, using the |
| 932 | * boot code already burned into E2PROM or ROM. |
| 933 | */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 934 | static int download_fw(struct edgeport_serial *serial) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 935 | { |
| 936 | struct device *dev = &serial->serial->dev->dev; |
| 937 | int status = 0; |
| 938 | int start_address; |
| 939 | struct edge_ti_manuf_descriptor *ti_manuf_desc; |
| 940 | struct usb_interface_descriptor *interface; |
| 941 | int download_cur_ver; |
| 942 | int download_new_ver; |
| 943 | |
| 944 | /* This routine is entered by both the BOOT mode and the Download mode |
| 945 | * We can determine which code is running by the reading the config |
| 946 | * descriptor and if we have only one bulk pipe it is in boot mode |
| 947 | */ |
| 948 | serial->product_info.hardware_type = HARDWARE_TYPE_TIUMP; |
| 949 | |
| 950 | /* Default to type 2 i2c */ |
| 951 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; |
| 952 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 953 | status = choose_config(serial->serial->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 954 | if (status) |
| 955 | return status; |
| 956 | |
| 957 | interface = &serial->serial->interface->cur_altsetting->desc; |
| 958 | if (!interface) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 959 | dev_err(dev, "%s - no interface set, error!\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 960 | return -ENODEV; |
| 961 | } |
| 962 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 963 | /* |
| 964 | * Setup initial mode -- the default mode 0 is TI_MODE_CONFIGURING |
| 965 | * if we have more than one endpoint we are definitely in download |
| 966 | * mode |
| 967 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 968 | if (interface->bNumEndpoints > 1) |
| 969 | serial->product_info.TiMode = TI_MODE_DOWNLOAD; |
| 970 | else |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 971 | /* Otherwise we will remain in configuring mode */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 972 | serial->product_info.TiMode = TI_MODE_CONFIGURING; |
| 973 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 974 | /********************************************************************/ |
| 975 | /* Download Mode */ |
| 976 | /********************************************************************/ |
| 977 | if (serial->product_info.TiMode == TI_MODE_DOWNLOAD) { |
| 978 | struct ti_i2c_desc *rom_desc; |
| 979 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 980 | dev_dbg(dev, "%s - RUNNING IN DOWNLOAD MODE\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 981 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 982 | status = check_i2c_image(serial); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 983 | if (status) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 984 | dev_dbg(dev, "%s - DOWNLOAD MODE -- BAD I2C\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 985 | return status; |
| 986 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 987 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 988 | /* Validate Hardware version number |
| 989 | * Read Manufacturing Descriptor from TI Based Edgeport |
| 990 | */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 991 | ti_manuf_desc = kmalloc(sizeof(*ti_manuf_desc), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 992 | if (!ti_manuf_desc) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 993 | dev_err(dev, "%s - out of memory.\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 994 | return -ENOMEM; |
| 995 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 996 | status = get_manuf_info(serial, (__u8 *)ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 997 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 998 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 999 | return status; |
| 1000 | } |
| 1001 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1002 | /* Check version number of ION descriptor */ |
| 1003 | if (!ignore_cpu_rev && ti_cpu_rev(ti_manuf_desc) < 2) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1004 | dev_dbg(dev, "%s - Wrong CPU Rev %d (Must be 2)\n", |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1005 | __func__, ti_cpu_rev(ti_manuf_desc)); |
| 1006 | kfree(ti_manuf_desc); |
| 1007 | return -EINVAL; |
| 1008 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1009 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1010 | rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1011 | if (!rom_desc) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1012 | dev_err(dev, "%s - out of memory.\n", __func__); |
| 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 | /* Search for type 2 record (firmware record) */ |
| 1018 | start_address = get_descriptor_addr(serial, |
| 1019 | I2C_DESC_TYPE_FIRMWARE_BASIC, rom_desc); |
| 1020 | if (start_address != 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1021 | struct ti_i2c_firmware_rec *firmware_version; |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 1022 | u8 *record; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1023 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1024 | dev_dbg(dev, "%s - Found Type FIRMWARE (Type 2) record\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1025 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1026 | firmware_version = kmalloc(sizeof(*firmware_version), |
| 1027 | GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1028 | if (!firmware_version) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1029 | dev_err(dev, "%s - out of memory.\n", __func__); |
| 1030 | kfree(rom_desc); |
| 1031 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1032 | return -ENOMEM; |
| 1033 | } |
| 1034 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1035 | /* Validate version number |
| 1036 | * Read the descriptor data |
| 1037 | */ |
| 1038 | status = read_rom(serial, start_address + |
| 1039 | sizeof(struct ti_i2c_desc), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1040 | sizeof(struct ti_i2c_firmware_rec), |
| 1041 | (__u8 *)firmware_version); |
| 1042 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1043 | kfree(firmware_version); |
| 1044 | kfree(rom_desc); |
| 1045 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1046 | return status; |
| 1047 | } |
| 1048 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1049 | /* Check version number of download with current |
| 1050 | version in I2c */ |
| 1051 | download_cur_ver = (firmware_version->Ver_Major << 8) + |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1052 | (firmware_version->Ver_Minor); |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 1053 | download_new_ver = (OperationalMajorVersion << 8) + |
| 1054 | (OperationalMinorVersion); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1055 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1056 | dev_dbg(dev, "%s - >> FW Versions Device %d.%d Driver %d.%d\n", |
| 1057 | __func__, firmware_version->Ver_Major, |
| 1058 | firmware_version->Ver_Minor, |
| 1059 | OperationalMajorVersion, |
| 1060 | OperationalMinorVersion); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1061 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1062 | /* Check if we have an old version in the I2C and |
| 1063 | update if necessary */ |
Greg Kroah-Hartman | 0827a9f | 2010-08-17 15:15:37 -0700 | [diff] [blame] | 1064 | if (download_cur_ver < download_new_ver) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1065 | dev_dbg(dev, "%s - Update I2C dld from %d.%d to %d.%d\n", |
| 1066 | __func__, |
| 1067 | firmware_version->Ver_Major, |
| 1068 | firmware_version->Ver_Minor, |
| 1069 | OperationalMajorVersion, |
| 1070 | OperationalMinorVersion); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1071 | |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 1072 | record = kmalloc(1, GFP_KERNEL); |
| 1073 | if (!record) { |
| 1074 | dev_err(dev, "%s - out of memory.\n", |
| 1075 | __func__); |
| 1076 | kfree(firmware_version); |
| 1077 | kfree(rom_desc); |
| 1078 | kfree(ti_manuf_desc); |
| 1079 | return -ENOMEM; |
| 1080 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1081 | /* In order to update the I2C firmware we must |
| 1082 | * change the type 2 record to type 0xF2. This |
| 1083 | * will force the UMP to come up in Boot Mode. |
| 1084 | * Then while in boot mode, the driver will |
| 1085 | * download the latest firmware (padded to |
| 1086 | * 15.5k) into the UMP ram. Finally when the |
| 1087 | * device comes back up in download mode the |
| 1088 | * driver will cause the new firmware to be |
| 1089 | * copied from the UMP Ram to I2C and the |
| 1090 | * firmware will update the record type from |
| 1091 | * 0xf2 to 0x02. |
| 1092 | */ |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 1093 | *record = I2C_DESC_TYPE_FIRMWARE_BLANK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1094 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1095 | /* Change the I2C Firmware record type to |
| 1096 | 0xf2 to trigger an update */ |
| 1097 | status = write_rom(serial, start_address, |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 1098 | sizeof(*record), record); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1099 | if (status) { |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 1100 | kfree(record); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1101 | kfree(firmware_version); |
| 1102 | kfree(rom_desc); |
| 1103 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1104 | return status; |
| 1105 | } |
| 1106 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1107 | /* verify the write -- must do this in order |
| 1108 | * for write to complete before we do the |
| 1109 | * hardware reset |
| 1110 | */ |
| 1111 | status = read_rom(serial, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1112 | start_address, |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 1113 | sizeof(*record), |
| 1114 | record); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1115 | if (status) { |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 1116 | kfree(record); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1117 | kfree(firmware_version); |
| 1118 | kfree(rom_desc); |
| 1119 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1120 | return status; |
| 1121 | } |
| 1122 | |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 1123 | if (*record != I2C_DESC_TYPE_FIRMWARE_BLANK) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1124 | dev_err(dev, "%s - error resetting device\n", __func__); |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 1125 | kfree(record); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1126 | kfree(firmware_version); |
| 1127 | kfree(rom_desc); |
| 1128 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1129 | return -ENODEV; |
| 1130 | } |
| 1131 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1132 | dev_dbg(dev, "%s - HARDWARE RESET\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1133 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1134 | /* Reset UMP -- Back to BOOT MODE */ |
| 1135 | status = ti_vsend_sync(serial->serial->dev, |
| 1136 | UMPC_HARDWARE_RESET, |
| 1137 | 0, 0, NULL, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1138 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1139 | dev_dbg(dev, "%s - HARDWARE RESET return %d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1140 | |
| 1141 | /* return an error on purpose. */ |
Johan Hovold | e9305d2 | 2009-12-28 23:01:50 +0100 | [diff] [blame] | 1142 | kfree(record); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1143 | kfree(firmware_version); |
| 1144 | kfree(rom_desc); |
| 1145 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1146 | return -ENODEV; |
| 1147 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1148 | kfree(firmware_version); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1149 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1150 | /* Search for type 0xF2 record (firmware blank record) */ |
| 1151 | else if ((start_address = get_descriptor_addr(serial, I2C_DESC_TYPE_FIRMWARE_BLANK, rom_desc)) != 0) { |
| 1152 | #define HEADER_SIZE (sizeof(struct ti_i2c_desc) + \ |
| 1153 | sizeof(struct ti_i2c_firmware_rec)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1154 | __u8 *header; |
| 1155 | __u8 *vheader; |
| 1156 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1157 | header = kmalloc(HEADER_SIZE, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1158 | if (!header) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1159 | dev_err(dev, "%s - out of memory.\n", __func__); |
| 1160 | kfree(rom_desc); |
| 1161 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1162 | return -ENOMEM; |
| 1163 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1164 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1165 | vheader = kmalloc(HEADER_SIZE, GFP_KERNEL); |
| 1166 | if (!vheader) { |
| 1167 | dev_err(dev, "%s - out of memory.\n", __func__); |
| 1168 | kfree(header); |
| 1169 | kfree(rom_desc); |
| 1170 | kfree(ti_manuf_desc); |
| 1171 | return -ENOMEM; |
| 1172 | } |
| 1173 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1174 | 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] | 1175 | |
| 1176 | /* |
| 1177 | * In order to update the I2C firmware we must change |
| 1178 | * the type 2 record to type 0xF2. This will force the |
| 1179 | * UMP to come up in Boot Mode. Then while in boot |
| 1180 | * mode, the driver will download the latest firmware |
| 1181 | * (padded to 15.5k) into the UMP ram. Finally when the |
| 1182 | * device comes back up in download mode the driver |
| 1183 | * will cause the new firmware to be copied from the |
| 1184 | * UMP Ram to I2C and the firmware will update the |
| 1185 | * record type from 0xf2 to 0x02. |
| 1186 | */ |
| 1187 | status = build_i2c_fw_hdr(header, dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1188 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1189 | kfree(vheader); |
| 1190 | kfree(header); |
| 1191 | kfree(rom_desc); |
| 1192 | kfree(ti_manuf_desc); |
Roel Kluin | fd6e5bb | 2010-08-10 14:29:19 -0700 | [diff] [blame] | 1193 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1194 | } |
| 1195 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1196 | /* Update I2C with type 0xf2 record with correct |
| 1197 | size and checksum */ |
| 1198 | status = write_rom(serial, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1199 | start_address, |
| 1200 | HEADER_SIZE, |
| 1201 | header); |
| 1202 | if (status) { |
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 | 9800eb3 | 2010-07-20 15:29:08 -0700 | [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 | /* verify the write -- must do this in order for |
| 1211 | write to complete before we do the hardware reset */ |
| 1212 | status = read_rom(serial, start_address, |
| 1213 | HEADER_SIZE, vheader); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1214 | |
| 1215 | if (status) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1216 | dev_dbg(dev, "%s - can't read header back\n", __func__); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1217 | kfree(vheader); |
| 1218 | kfree(header); |
| 1219 | kfree(rom_desc); |
| 1220 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1221 | return status; |
| 1222 | } |
| 1223 | if (memcmp(vheader, header, HEADER_SIZE)) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1224 | dev_dbg(dev, "%s - write download record failed\n", __func__); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1225 | kfree(vheader); |
| 1226 | kfree(header); |
| 1227 | kfree(rom_desc); |
| 1228 | kfree(ti_manuf_desc); |
Roel Kluin | 1e29709 | 2010-07-02 00:36:43 +0200 | [diff] [blame] | 1229 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1230 | } |
| 1231 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1232 | kfree(vheader); |
| 1233 | kfree(header); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1234 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1235 | dev_dbg(dev, "%s - Start firmware update\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1236 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1237 | /* Tell firmware to copy download image into I2C */ |
| 1238 | status = ti_vsend_sync(serial->serial->dev, |
| 1239 | UMPC_COPY_DNLD_TO_I2C, 0, 0, NULL, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1240 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1241 | dev_dbg(dev, "%s - Update complete 0x%x\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1242 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1243 | dev_err(dev, |
| 1244 | "%s - UMPC_COPY_DNLD_TO_I2C failed\n", |
| 1245 | __func__); |
| 1246 | kfree(rom_desc); |
| 1247 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1248 | return status; |
| 1249 | } |
| 1250 | } |
| 1251 | |
| 1252 | // The device is running the download code |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1253 | kfree(rom_desc); |
| 1254 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1255 | return 0; |
| 1256 | } |
| 1257 | |
| 1258 | /********************************************************************/ |
| 1259 | /* Boot Mode */ |
| 1260 | /********************************************************************/ |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1261 | dev_dbg(dev, "%s - RUNNING IN BOOT MODE\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1262 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1263 | /* Configure the TI device so we can use the BULK pipes for download */ |
| 1264 | status = config_boot_dev(serial->serial->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1265 | if (status) |
| 1266 | return status; |
| 1267 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1268 | if (le16_to_cpu(serial->serial->dev->descriptor.idVendor) |
| 1269 | != USB_VENDOR_ID_ION) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1270 | dev_dbg(dev, "%s - VID = 0x%x\n", __func__, |
| 1271 | le16_to_cpu(serial->serial->dev->descriptor.idVendor)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1272 | serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1273 | goto stayinbootmode; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1274 | } |
| 1275 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1276 | /* We have an ION device (I2c Must be programmed) |
| 1277 | Determine I2C image type */ |
| 1278 | if (i2c_type_bootmode(serial)) |
| 1279 | goto stayinbootmode; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1280 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1281 | /* Check for ION Vendor ID and that the I2C is valid */ |
| 1282 | if (!check_i2c_image(serial)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1283 | struct ti_i2c_image_header *header; |
| 1284 | int i; |
| 1285 | __u8 cs = 0; |
| 1286 | __u8 *buffer; |
| 1287 | int buffer_size; |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 1288 | int err; |
| 1289 | const struct firmware *fw; |
| 1290 | const char *fw_name = "edgeport/down3.bin"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1291 | |
| 1292 | /* Validate Hardware version number |
| 1293 | * Read Manufacturing Descriptor from TI Based Edgeport |
| 1294 | */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1295 | ti_manuf_desc = kmalloc(sizeof(*ti_manuf_desc), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1296 | if (!ti_manuf_desc) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1297 | dev_err(dev, "%s - out of memory.\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1298 | return -ENOMEM; |
| 1299 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1300 | status = get_manuf_info(serial, (__u8 *)ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1301 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1302 | kfree(ti_manuf_desc); |
| 1303 | goto stayinbootmode; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1304 | } |
| 1305 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1306 | /* Check for version 2 */ |
| 1307 | if (!ignore_cpu_rev && ti_cpu_rev(ti_manuf_desc) < 2) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1308 | dev_dbg(dev, "%s - Wrong CPU Rev %d (Must be 2)\n", |
| 1309 | __func__, ti_cpu_rev(ti_manuf_desc)); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1310 | kfree(ti_manuf_desc); |
| 1311 | goto stayinbootmode; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1312 | } |
| 1313 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1314 | kfree(ti_manuf_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1315 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1316 | /* |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1317 | * In order to update the I2C firmware we must change the type |
| 1318 | * 2 record to type 0xF2. This will force the UMP to come up |
| 1319 | * in Boot Mode. Then while in boot mode, the driver will |
| 1320 | * download the latest firmware (padded to 15.5k) into the |
| 1321 | * UMP ram. Finally when the device comes back up in download |
| 1322 | * mode the driver will cause the new firmware to be copied |
| 1323 | * from the UMP Ram to I2C and the firmware will update the |
| 1324 | * record type from 0xf2 to 0x02. |
| 1325 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1326 | * Do we really have to copy the whole firmware image, |
| 1327 | * or could we do this in place! |
| 1328 | */ |
| 1329 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1330 | /* Allocate a 15.5k buffer + 3 byte header */ |
| 1331 | buffer_size = (((1024 * 16) - 512) + |
| 1332 | sizeof(struct ti_i2c_image_header)); |
| 1333 | buffer = kmalloc(buffer_size, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1334 | if (!buffer) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1335 | dev_err(dev, "%s - out of memory\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1336 | return -ENOMEM; |
| 1337 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1338 | |
| 1339 | /* Initialize the buffer to 0xff (pad the buffer) */ |
| 1340 | memset(buffer, 0xff, buffer_size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1341 | |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 1342 | err = request_firmware(&fw, fw_name, dev); |
| 1343 | if (err) { |
Greg Kroah-Hartman | d9bb03d | 2012-09-18 16:59:23 +0100 | [diff] [blame] | 1344 | dev_err(dev, "Failed to load image \"%s\" err %d\n", |
| 1345 | fw_name, err); |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 1346 | kfree(buffer); |
| 1347 | return err; |
| 1348 | } |
| 1349 | memcpy(buffer, &fw->data[4], fw->size - 4); |
| 1350 | release_firmware(fw); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1351 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1352 | for (i = sizeof(struct ti_i2c_image_header); |
| 1353 | i < buffer_size; i++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1354 | cs = (__u8)(cs + buffer[i]); |
| 1355 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1356 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1357 | header = (struct ti_i2c_image_header *)buffer; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1358 | |
| 1359 | /* update length and checksum after padding */ |
| 1360 | header->Length = cpu_to_le16((__u16)(buffer_size - |
| 1361 | sizeof(struct ti_i2c_image_header))); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1362 | header->CheckSum = cs; |
| 1363 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1364 | /* Download the operational code */ |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1365 | dev_dbg(dev, "%s - Downloading operational code image (TI UMP)\n", __func__); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1366 | status = download_code(serial, buffer, buffer_size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1367 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1368 | kfree(buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1369 | |
| 1370 | if (status) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1371 | dev_dbg(dev, "%s - Error downloading operational code image\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1372 | return status; |
| 1373 | } |
| 1374 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1375 | /* Device will reboot */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1376 | serial->product_info.TiMode = TI_MODE_TRANSITIONING; |
| 1377 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1378 | dev_dbg(dev, "%s - Download successful -- Device rebooting...\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1379 | |
| 1380 | /* return an error on purpose */ |
| 1381 | return -ENODEV; |
| 1382 | } |
| 1383 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1384 | stayinbootmode: |
| 1385 | /* Eprom is invalid or blank stay in boot mode */ |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1386 | dev_dbg(dev, "%s - STAYING IN BOOT MODE\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1387 | serial->product_info.TiMode = TI_MODE_BOOT; |
| 1388 | |
| 1389 | return 0; |
| 1390 | } |
| 1391 | |
| 1392 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1393 | 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] | 1394 | { |
| 1395 | int port_number = port->port->number - port->port->serial->minor; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1396 | on = !!on; /* 1 or 0 not bitmask */ |
| 1397 | return send_cmd(port->port->serial->dev, |
| 1398 | feature, (__u8)(UMPM_UART1_PORT + port_number), |
| 1399 | on, NULL, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1400 | } |
| 1401 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1402 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1403 | static int restore_mcr(struct edgeport_port *port, __u8 mcr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1404 | { |
| 1405 | int status = 0; |
| 1406 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1407 | dev_dbg(&port->port->dev, "%s - %x\n", __func__, mcr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1408 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1409 | status = ti_do_config(port, UMPC_SET_CLR_DTR, mcr & MCR_DTR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1410 | if (status) |
| 1411 | return status; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1412 | status = ti_do_config(port, UMPC_SET_CLR_RTS, mcr & MCR_RTS); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1413 | if (status) |
| 1414 | return status; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1415 | return ti_do_config(port, UMPC_SET_CLR_LOOPBACK, mcr & MCR_LOOPBACK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1416 | } |
| 1417 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1418 | /* Convert TI LSR to standard UART flags */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1419 | static __u8 map_line_status(__u8 ti_lsr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1420 | { |
| 1421 | __u8 lsr = 0; |
| 1422 | |
| 1423 | #define MAP_FLAG(flagUmp, flagUart) \ |
| 1424 | if (ti_lsr & flagUmp) \ |
| 1425 | lsr |= flagUart; |
| 1426 | |
| 1427 | MAP_FLAG(UMP_UART_LSR_OV_MASK, LSR_OVER_ERR) /* overrun */ |
| 1428 | MAP_FLAG(UMP_UART_LSR_PE_MASK, LSR_PAR_ERR) /* parity error */ |
| 1429 | MAP_FLAG(UMP_UART_LSR_FE_MASK, LSR_FRM_ERR) /* framing error */ |
| 1430 | MAP_FLAG(UMP_UART_LSR_BR_MASK, LSR_BREAK) /* break detected */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1431 | MAP_FLAG(UMP_UART_LSR_RX_MASK, LSR_RX_AVAIL) /* rx data available */ |
| 1432 | 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] | 1433 | |
| 1434 | #undef MAP_FLAG |
| 1435 | |
| 1436 | return lsr; |
| 1437 | } |
| 1438 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1439 | static void handle_new_msr(struct edgeport_port *edge_port, __u8 msr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1440 | { |
| 1441 | struct async_icount *icount; |
| 1442 | struct tty_struct *tty; |
| 1443 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1444 | dev_dbg(&edge_port->port->dev, "%s - %02x\n", __func__, msr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1445 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1446 | if (msr & (EDGEPORT_MSR_DELTA_CTS | EDGEPORT_MSR_DELTA_DSR | |
| 1447 | EDGEPORT_MSR_DELTA_RI | EDGEPORT_MSR_DELTA_CD)) { |
Johan Hovold | cf9a9d6 | 2013-03-21 12:37:09 +0100 | [diff] [blame] | 1448 | icount = &edge_port->port->icount; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1449 | |
| 1450 | /* update input line counters */ |
| 1451 | if (msr & EDGEPORT_MSR_DELTA_CTS) |
| 1452 | icount->cts++; |
| 1453 | if (msr & EDGEPORT_MSR_DELTA_DSR) |
| 1454 | icount->dsr++; |
| 1455 | if (msr & EDGEPORT_MSR_DELTA_CD) |
| 1456 | icount->dcd++; |
| 1457 | if (msr & EDGEPORT_MSR_DELTA_RI) |
| 1458 | icount->rng++; |
Johan Hovold | 48ee580 | 2013-03-21 12:37:10 +0100 | [diff] [blame] | 1459 | wake_up_interruptible(&edge_port->port->port.delta_msr_wait); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1460 | } |
| 1461 | |
| 1462 | /* Save the new modem status */ |
| 1463 | edge_port->shadow_msr = msr & 0xf0; |
| 1464 | |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1465 | tty = tty_port_tty_get(&edge_port->port->port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1466 | /* handle CTS flow control */ |
| 1467 | if (tty && C_CRTSCTS(tty)) { |
| 1468 | if (msr & EDGEPORT_MSR_CTS) { |
| 1469 | tty->hw_stopped = 0; |
| 1470 | tty_wakeup(tty); |
| 1471 | } else { |
| 1472 | tty->hw_stopped = 1; |
| 1473 | } |
| 1474 | } |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1475 | tty_kref_put(tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1476 | } |
| 1477 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1478 | static void handle_new_lsr(struct edgeport_port *edge_port, int lsr_data, |
| 1479 | __u8 lsr, __u8 data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1480 | { |
| 1481 | struct async_icount *icount; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1482 | __u8 new_lsr = (__u8)(lsr & (__u8)(LSR_OVER_ERR | LSR_PAR_ERR | |
| 1483 | LSR_FRM_ERR | LSR_BREAK)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1484 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1485 | dev_dbg(&edge_port->port->dev, "%s - %02x\n", __func__, new_lsr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1486 | |
| 1487 | edge_port->shadow_lsr = lsr; |
| 1488 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1489 | if (new_lsr & LSR_BREAK) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1490 | /* |
| 1491 | * Parity and Framing errors only count if they |
| 1492 | * occur exclusive of a break being received. |
| 1493 | */ |
| 1494 | new_lsr &= (__u8)(LSR_OVER_ERR | LSR_BREAK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1495 | |
| 1496 | /* Place LSR data byte into Rx buffer */ |
Jiri Slaby | 2e124b4 | 2013-01-03 15:53:06 +0100 | [diff] [blame] | 1497 | if (lsr_data) |
| 1498 | edge_tty_recv(edge_port->port, &data, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1499 | |
| 1500 | /* update input line counters */ |
Johan Hovold | cf9a9d6 | 2013-03-21 12:37:09 +0100 | [diff] [blame] | 1501 | icount = &edge_port->port->icount; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1502 | if (new_lsr & LSR_BREAK) |
| 1503 | icount->brk++; |
| 1504 | if (new_lsr & LSR_OVER_ERR) |
| 1505 | icount->overrun++; |
| 1506 | if (new_lsr & LSR_PAR_ERR) |
| 1507 | icount->parity++; |
| 1508 | if (new_lsr & LSR_FRM_ERR) |
| 1509 | icount->frame++; |
| 1510 | } |
| 1511 | |
| 1512 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1513 | static void edge_interrupt_callback(struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1514 | { |
Ming Lei | cdc9779 | 2008-02-24 18:41:47 +0800 | [diff] [blame] | 1515 | struct edgeport_serial *edge_serial = urb->context; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1516 | struct usb_serial_port *port; |
| 1517 | struct edgeport_port *edge_port; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1518 | struct device *dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1519 | unsigned char *data = urb->transfer_buffer; |
| 1520 | int length = urb->actual_length; |
| 1521 | int port_number; |
| 1522 | int function; |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1523 | int retval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1524 | __u8 lsr; |
| 1525 | __u8 msr; |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1526 | int status = urb->status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1527 | |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1528 | switch (status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1529 | case 0: |
| 1530 | /* success */ |
| 1531 | break; |
| 1532 | case -ECONNRESET: |
| 1533 | case -ENOENT: |
| 1534 | case -ESHUTDOWN: |
| 1535 | /* this urb is terminated, clean up */ |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1536 | 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] | 1537 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1538 | return; |
| 1539 | default: |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1540 | dev_err(&urb->dev->dev, "%s - nonzero urb status received: " |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1541 | "%d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1542 | goto exit; |
| 1543 | } |
| 1544 | |
| 1545 | if (!length) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1546 | dev_dbg(&urb->dev->dev, "%s - no data in urb\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1547 | goto exit; |
| 1548 | } |
| 1549 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1550 | dev = &edge_serial->serial->dev->dev; |
Greg Kroah-Hartman | 59d33f2 | 2012-09-18 09:58:57 +0100 | [diff] [blame] | 1551 | usb_serial_debug_data(dev, __func__, length, data); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1552 | |
| 1553 | if (length != 2) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1554 | 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] | 1555 | goto exit; |
| 1556 | } |
| 1557 | |
| 1558 | port_number = TIUMP_GET_PORT_FROM_CODE(data[0]); |
| 1559 | function = TIUMP_GET_FUNC_FROM_CODE(data[0]); |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1560 | dev_dbg(dev, "%s - port_number %d, function %d, info 0x%x\n", __func__, |
| 1561 | port_number, function, data[1]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1562 | port = edge_serial->serial->port[port_number]; |
| 1563 | edge_port = usb_get_serial_port_data(port); |
| 1564 | if (!edge_port) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1565 | dev_dbg(dev, "%s - edge_port not found\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1566 | return; |
| 1567 | } |
| 1568 | switch (function) { |
| 1569 | case TIUMP_INTERRUPT_CODE_LSR: |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1570 | lsr = map_line_status(data[1]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1571 | if (lsr & UMP_UART_LSR_DATA_MASK) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1572 | /* Save the LSR event for bulk read |
| 1573 | completion routine */ |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1574 | dev_dbg(dev, "%s - LSR Event Port %u LSR Status = %02x\n", |
| 1575 | __func__, port_number, lsr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1576 | edge_port->lsr_event = 1; |
| 1577 | edge_port->lsr_mask = lsr; |
| 1578 | } else { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1579 | dev_dbg(dev, "%s - ===== Port %d LSR Status = %02x ======\n", |
| 1580 | __func__, port_number, lsr); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1581 | handle_new_lsr(edge_port, 0, lsr, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1582 | } |
| 1583 | break; |
| 1584 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1585 | case TIUMP_INTERRUPT_CODE_MSR: /* MSR */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1586 | /* Copy MSR from UMP */ |
| 1587 | msr = data[1]; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1588 | dev_dbg(dev, "%s - ===== Port %u MSR Status = %02x ======\n", |
| 1589 | __func__, port_number, msr); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1590 | handle_new_msr(edge_port, msr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1591 | break; |
| 1592 | |
| 1593 | default: |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1594 | dev_err(&urb->dev->dev, |
| 1595 | "%s - Unknown Interrupt code from UMP %x\n", |
| 1596 | __func__, data[1]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1597 | break; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1598 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1599 | } |
| 1600 | |
| 1601 | exit: |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1602 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1603 | if (retval) |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1604 | dev_err(&urb->dev->dev, |
| 1605 | "%s - usb_submit_urb failed with result %d\n", |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1606 | __func__, retval); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1607 | } |
| 1608 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1609 | static void edge_bulk_in_callback(struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1610 | { |
Ming Lei | cdc9779 | 2008-02-24 18:41:47 +0800 | [diff] [blame] | 1611 | struct edgeport_port *edge_port = urb->context; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1612 | struct device *dev = &edge_port->port->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1613 | unsigned char *data = urb->transfer_buffer; |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1614 | int retval = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1615 | int port_number; |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1616 | int status = urb->status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1617 | |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1618 | switch (status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1619 | case 0: |
| 1620 | /* success */ |
| 1621 | break; |
| 1622 | case -ECONNRESET: |
| 1623 | case -ENOENT: |
| 1624 | case -ESHUTDOWN: |
| 1625 | /* this urb is terminated, clean up */ |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1626 | 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] | 1627 | return; |
| 1628 | default: |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1629 | 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] | 1630 | } |
| 1631 | |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1632 | if (status == -EPIPE) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1633 | goto exit; |
| 1634 | |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1635 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1636 | dev_err(&urb->dev->dev, "%s - stopping read!\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1637 | return; |
| 1638 | } |
| 1639 | |
| 1640 | port_number = edge_port->port->number - edge_port->port->serial->minor; |
| 1641 | |
| 1642 | if (edge_port->lsr_event) { |
| 1643 | edge_port->lsr_event = 0; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1644 | dev_dbg(dev, "%s ===== Port %u LSR Status = %02x, Data = %02x ======\n", |
| 1645 | __func__, port_number, edge_port->lsr_mask, *data); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1646 | handle_new_lsr(edge_port, 1, edge_port->lsr_mask, *data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1647 | /* Adjust buffer length/pointer */ |
| 1648 | --urb->actual_length; |
| 1649 | ++data; |
| 1650 | } |
| 1651 | |
Jiri Slaby | 2e124b4 | 2013-01-03 15:53:06 +0100 | [diff] [blame] | 1652 | if (urb->actual_length) { |
Greg Kroah-Hartman | 59d33f2 | 2012-09-18 09:58:57 +0100 | [diff] [blame] | 1653 | usb_serial_debug_data(dev, __func__, urb->actual_length, data); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1654 | if (edge_port->close_pending) |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1655 | dev_dbg(dev, "%s - close pending, dropping data on the floor\n", |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1656 | __func__); |
| 1657 | else |
Jiri Slaby | 2e124b4 | 2013-01-03 15:53:06 +0100 | [diff] [blame] | 1658 | edge_tty_recv(edge_port->port, data, |
Jiri Slaby | 05c7cd3 | 2013-01-03 15:53:04 +0100 | [diff] [blame] | 1659 | urb->actual_length); |
Johan Hovold | cf9a9d6 | 2013-03-21 12:37:09 +0100 | [diff] [blame] | 1660 | edge_port->port->icount.rx += urb->actual_length; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1661 | } |
| 1662 | |
| 1663 | exit: |
| 1664 | /* continue read unless stopped */ |
| 1665 | spin_lock(&edge_port->ep_lock); |
Johan Hovold | 5833041 | 2011-11-06 19:06:28 +0100 | [diff] [blame] | 1666 | if (edge_port->ep_read_urb_state == EDGE_READ_URB_RUNNING) |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1667 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
Johan Hovold | 5833041 | 2011-11-06 19:06:28 +0100 | [diff] [blame] | 1668 | else if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPING) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1669 | edge_port->ep_read_urb_state = EDGE_READ_URB_STOPPED; |
Johan Hovold | 5833041 | 2011-11-06 19:06:28 +0100 | [diff] [blame] | 1670 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1671 | spin_unlock(&edge_port->ep_lock); |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1672 | if (retval) |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1673 | 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] | 1674 | } |
| 1675 | |
Jiri Slaby | 2e124b4 | 2013-01-03 15:53:06 +0100 | [diff] [blame] | 1676 | static void edge_tty_recv(struct usb_serial_port *port, unsigned char *data, |
| 1677 | int length) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1678 | { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1679 | int queued; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1680 | |
Jiri Slaby | 05c7cd3 | 2013-01-03 15:53:04 +0100 | [diff] [blame] | 1681 | queued = tty_insert_flip_string(&port->port, data, length); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1682 | if (queued < length) |
Jiri Slaby | 05c7cd3 | 2013-01-03 15:53:04 +0100 | [diff] [blame] | 1683 | dev_err(&port->dev, "%s - dropping data, %d bytes lost\n", |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1684 | __func__, length - queued); |
Jiri Slaby | 2e124b4 | 2013-01-03 15:53:06 +0100 | [diff] [blame] | 1685 | tty_flip_buffer_push(&port->port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1686 | } |
| 1687 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1688 | static void edge_bulk_out_callback(struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1689 | { |
Ming Lei | cdc9779 | 2008-02-24 18:41:47 +0800 | [diff] [blame] | 1690 | struct usb_serial_port *port = urb->context; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1691 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1692 | int status = urb->status; |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1693 | struct tty_struct *tty; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1694 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1695 | edge_port->ep_write_urb_in_use = 0; |
| 1696 | |
Greg Kroah-Hartman | ee337c2 | 2007-06-15 15:44:13 -0700 | [diff] [blame] | 1697 | switch (status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1698 | case 0: |
| 1699 | /* success */ |
| 1700 | break; |
| 1701 | case -ECONNRESET: |
| 1702 | case -ENOENT: |
| 1703 | case -ESHUTDOWN: |
| 1704 | /* this urb is terminated, clean up */ |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1705 | 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] | 1706 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1707 | return; |
| 1708 | default: |
Johan Hovold | 22a416c | 2012-02-10 13:20:51 +0100 | [diff] [blame] | 1709 | dev_err_console(port, "%s - nonzero write bulk status " |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1710 | "received: %d\n", __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1711 | } |
| 1712 | |
| 1713 | /* send any buffered data */ |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1714 | tty = tty_port_tty_get(&port->port); |
Jiri Slaby | ae3759c | 2013-04-04 22:41:01 +0200 | [diff] [blame] | 1715 | edge_send(port, tty); |
Alan Cox | 4a90f09 | 2008-10-13 10:39:46 +0100 | [diff] [blame] | 1716 | tty_kref_put(tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1717 | } |
| 1718 | |
Alan Cox | a509a7e | 2009-09-19 13:13:26 -0700 | [diff] [blame] | 1719 | 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] | 1720 | { |
| 1721 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 1722 | struct edgeport_serial *edge_serial; |
| 1723 | struct usb_device *dev; |
| 1724 | struct urb *urb; |
| 1725 | int port_number; |
| 1726 | int status; |
| 1727 | u16 open_settings; |
| 1728 | u8 transaction_timeout; |
| 1729 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1730 | if (edge_port == NULL) |
| 1731 | return -ENODEV; |
| 1732 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1733 | port_number = port->number - port->serial->minor; |
| 1734 | switch (port_number) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1735 | case 0: |
| 1736 | edge_port->uart_base = UMPMEM_BASE_UART1; |
| 1737 | edge_port->dma_address = UMPD_OEDB1_ADDRESS; |
| 1738 | break; |
| 1739 | case 1: |
| 1740 | edge_port->uart_base = UMPMEM_BASE_UART2; |
| 1741 | edge_port->dma_address = UMPD_OEDB2_ADDRESS; |
| 1742 | break; |
| 1743 | default: |
| 1744 | dev_err(&port->dev, "Unknown port number!!!\n"); |
| 1745 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1746 | } |
| 1747 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1748 | dev_dbg(&port->dev, "%s - port_number = %d, uart_base = %04x, dma_address = %04x\n", |
| 1749 | __func__, port_number, edge_port->uart_base, edge_port->dma_address); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1750 | |
| 1751 | dev = port->serial->dev; |
| 1752 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1753 | /* turn off loopback */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1754 | status = ti_do_config(edge_port, UMPC_SET_CLR_LOOPBACK, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1755 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1756 | dev_err(&port->dev, |
| 1757 | "%s - cannot send clear loopback command, %d\n", |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 1758 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1759 | return status; |
| 1760 | } |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1761 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1762 | /* set up the port settings */ |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1763 | if (tty) |
Alan Cox | adc8d74 | 2012-07-14 15:31:47 +0100 | [diff] [blame] | 1764 | edge_set_termios(tty, port, &tty->termios); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1765 | |
| 1766 | /* open up the port */ |
| 1767 | |
| 1768 | /* milliseconds to timeout for DMA transfer */ |
| 1769 | transaction_timeout = 2; |
| 1770 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1771 | edge_port->ump_read_timeout = |
| 1772 | max(20, ((transaction_timeout * 3) / 2)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1773 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1774 | /* milliseconds to timeout for DMA transfer */ |
| 1775 | open_settings = (u8)(UMP_DMA_MODE_CONTINOUS | |
| 1776 | UMP_PIPE_TRANS_TIMEOUT_ENA | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1777 | (transaction_timeout << 2)); |
| 1778 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1779 | dev_dbg(&port->dev, "%s - Sending UMPC_OPEN_PORT\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1780 | |
| 1781 | /* Tell TI to open and start the port */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1782 | status = send_cmd(dev, UMPC_OPEN_PORT, |
| 1783 | (u8)(UMPM_UART1_PORT + port_number), open_settings, NULL, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1784 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1785 | dev_err(&port->dev, "%s - cannot send open command, %d\n", |
| 1786 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1787 | return status; |
| 1788 | } |
| 1789 | |
| 1790 | /* Start the DMA? */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1791 | status = send_cmd(dev, UMPC_START_PORT, |
| 1792 | (u8)(UMPM_UART1_PORT + port_number), 0, NULL, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1793 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1794 | dev_err(&port->dev, "%s - cannot send start DMA command, %d\n", |
| 1795 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1796 | return status; |
| 1797 | } |
| 1798 | |
| 1799 | /* Clear TX and RX buffers in UMP */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1800 | status = purge_port(port, UMP_PORT_DIR_OUT | UMP_PORT_DIR_IN); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1801 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1802 | dev_err(&port->dev, |
| 1803 | "%s - cannot send clear buffers command, %d\n", |
| 1804 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1805 | return status; |
| 1806 | } |
| 1807 | |
| 1808 | /* Read Initial MSR */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1809 | status = ti_vread_sync(dev, UMPC_READ_MSR, 0, |
| 1810 | (__u16)(UMPM_UART1_PORT + port_number), |
| 1811 | &edge_port->shadow_msr, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1812 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1813 | dev_err(&port->dev, "%s - cannot send read MSR command, %d\n", |
| 1814 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1815 | return status; |
| 1816 | } |
| 1817 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1818 | dev_dbg(&port->dev, "ShadowMSR 0x%X\n", edge_port->shadow_msr); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1819 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1820 | /* Set Initial MCR */ |
| 1821 | edge_port->shadow_mcr = MCR_RTS | MCR_DTR; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1822 | dev_dbg(&port->dev, "ShadowMCR 0x%X\n", edge_port->shadow_mcr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1823 | |
| 1824 | edge_serial = edge_port->edge_serial; |
Matthias Kaehlcke | 241ca64 | 2007-12-04 16:15:40 +0100 | [diff] [blame] | 1825 | if (mutex_lock_interruptible(&edge_serial->es_lock)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1826 | return -ERESTARTSYS; |
| 1827 | if (edge_serial->num_ports_open == 0) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1828 | /* we are the first port to open, post the interrupt urb */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1829 | urb = edge_serial->serial->port[0]->interrupt_in_urb; |
| 1830 | if (!urb) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1831 | dev_err(&port->dev, |
| 1832 | "%s - no interrupt urb present, exiting\n", |
| 1833 | __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1834 | status = -EINVAL; |
Matthias Kaehlcke | 241ca64 | 2007-12-04 16:15:40 +0100 | [diff] [blame] | 1835 | goto release_es_lock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1836 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1837 | urb->context = edge_serial; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1838 | status = usb_submit_urb(urb, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1839 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1840 | dev_err(&port->dev, |
| 1841 | "%s - usb_submit_urb failed with value %d\n", |
| 1842 | __func__, status); |
Matthias Kaehlcke | 241ca64 | 2007-12-04 16:15:40 +0100 | [diff] [blame] | 1843 | goto release_es_lock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1844 | } |
| 1845 | } |
| 1846 | |
| 1847 | /* |
| 1848 | * reset the data toggle on the bulk endpoints to work around bug in |
| 1849 | * host controllers where things get out of sync some times |
| 1850 | */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1851 | usb_clear_halt(dev, port->write_urb->pipe); |
| 1852 | usb_clear_halt(dev, port->read_urb->pipe); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1853 | |
| 1854 | /* start up our bulk read urb */ |
| 1855 | urb = port->read_urb; |
| 1856 | if (!urb) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1857 | dev_err(&port->dev, "%s - no read urb present, exiting\n", |
| 1858 | __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1859 | status = -EINVAL; |
| 1860 | goto unlink_int_urb; |
| 1861 | } |
| 1862 | edge_port->ep_read_urb_state = EDGE_READ_URB_RUNNING; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1863 | urb->context = edge_port; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1864 | status = usb_submit_urb(urb, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1865 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1866 | dev_err(&port->dev, |
| 1867 | "%s - read bulk usb_submit_urb failed with value %d\n", |
| 1868 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1869 | goto unlink_int_urb; |
| 1870 | } |
| 1871 | |
| 1872 | ++edge_serial->num_ports_open; |
| 1873 | |
Johan Hovold | fcdb6a2 | 2013-01-14 16:52:55 +0100 | [diff] [blame] | 1874 | port->port.drain_delay = 1; |
| 1875 | |
Matthias Kaehlcke | 241ca64 | 2007-12-04 16:15:40 +0100 | [diff] [blame] | 1876 | goto release_es_lock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1877 | |
| 1878 | unlink_int_urb: |
| 1879 | if (edge_port->edge_serial->num_ports_open == 0) |
| 1880 | usb_kill_urb(port->serial->port[0]->interrupt_in_urb); |
Matthias Kaehlcke | 241ca64 | 2007-12-04 16:15:40 +0100 | [diff] [blame] | 1881 | release_es_lock: |
| 1882 | mutex_unlock(&edge_serial->es_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1883 | return status; |
| 1884 | } |
| 1885 | |
Alan Cox | 335f851 | 2009-06-11 12:26:29 +0100 | [diff] [blame] | 1886 | static void edge_close(struct usb_serial_port *port) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1887 | { |
| 1888 | struct edgeport_serial *edge_serial; |
| 1889 | struct edgeport_port *edge_port; |
Johan Hovold | af58105 | 2012-03-26 20:31:38 +0200 | [diff] [blame] | 1890 | struct usb_serial *serial = port->serial; |
Johan Hovold | 77de251 | 2013-01-14 16:52:54 +0100 | [diff] [blame] | 1891 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1892 | int port_number; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1893 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1894 | edge_serial = usb_get_serial_data(port->serial); |
| 1895 | edge_port = usb_get_serial_port_data(port); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1896 | if (edge_serial == NULL || edge_port == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1897 | return; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1898 | |
| 1899 | /* The bulkreadcompletion routine will check |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1900 | * this flag and dump add read data */ |
| 1901 | edge_port->close_pending = 1; |
| 1902 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1903 | usb_kill_urb(port->read_urb); |
| 1904 | usb_kill_urb(port->write_urb); |
| 1905 | edge_port->ep_write_urb_in_use = 0; |
Johan Hovold | 77de251 | 2013-01-14 16:52:54 +0100 | [diff] [blame] | 1906 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
| 1907 | kfifo_reset_out(&edge_port->write_fifo); |
| 1908 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1909 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1910 | dev_dbg(&port->dev, "%s - send umpc_close_port\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1911 | port_number = port->number - port->serial->minor; |
Johan Hovold | bca87e9 | 2013-03-21 12:37:38 +0100 | [diff] [blame] | 1912 | send_cmd(serial->dev, UMPC_CLOSE_PORT, |
| 1913 | (__u8)(UMPM_UART1_PORT + port_number), 0, NULL, 0); |
Johan Hovold | af58105 | 2012-03-26 20:31:38 +0200 | [diff] [blame] | 1914 | |
Matthias Kaehlcke | 241ca64 | 2007-12-04 16:15:40 +0100 | [diff] [blame] | 1915 | mutex_lock(&edge_serial->es_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1916 | --edge_port->edge_serial->num_ports_open; |
| 1917 | if (edge_port->edge_serial->num_ports_open <= 0) { |
| 1918 | /* last port is now closed, let's shut down our interrupt urb */ |
| 1919 | usb_kill_urb(port->serial->port[0]->interrupt_in_urb); |
| 1920 | edge_port->edge_serial->num_ports_open = 0; |
| 1921 | } |
Matthias Kaehlcke | 241ca64 | 2007-12-04 16:15:40 +0100 | [diff] [blame] | 1922 | mutex_unlock(&edge_serial->es_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1923 | edge_port->close_pending = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1924 | } |
| 1925 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1926 | static int edge_write(struct tty_struct *tty, struct usb_serial_port *port, |
| 1927 | const unsigned char *data, int count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1928 | { |
| 1929 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1930 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1931 | if (count == 0) { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 1932 | dev_dbg(&port->dev, "%s - write request of 0 bytes\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1933 | return 0; |
| 1934 | } |
| 1935 | |
| 1936 | if (edge_port == NULL) |
| 1937 | return -ENODEV; |
| 1938 | if (edge_port->close_pending == 1) |
| 1939 | return -ENODEV; |
| 1940 | |
Johan Hovold | d733cec | 2010-05-19 00:01:37 +0200 | [diff] [blame] | 1941 | count = kfifo_in_locked(&edge_port->write_fifo, data, count, |
| 1942 | &edge_port->ep_lock); |
Jiri Slaby | ae3759c | 2013-04-04 22:41:01 +0200 | [diff] [blame] | 1943 | edge_send(port, tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1944 | |
| 1945 | return count; |
| 1946 | } |
| 1947 | |
Jiri Slaby | ae3759c | 2013-04-04 22:41:01 +0200 | [diff] [blame] | 1948 | 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] | 1949 | { |
| 1950 | int count, result; |
| 1951 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1952 | unsigned long flags; |
| 1953 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1954 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
| 1955 | |
| 1956 | if (edge_port->ep_write_urb_in_use) { |
| 1957 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
| 1958 | return; |
| 1959 | } |
| 1960 | |
Johan Hovold | d733cec | 2010-05-19 00:01:37 +0200 | [diff] [blame] | 1961 | count = kfifo_out(&edge_port->write_fifo, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1962 | port->write_urb->transfer_buffer, |
| 1963 | port->bulk_out_size); |
| 1964 | |
| 1965 | if (count == 0) { |
| 1966 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
| 1967 | return; |
| 1968 | } |
| 1969 | |
| 1970 | edge_port->ep_write_urb_in_use = 1; |
| 1971 | |
| 1972 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
| 1973 | |
Greg Kroah-Hartman | 59d33f2 | 2012-09-18 09:58:57 +0100 | [diff] [blame] | 1974 | 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] | 1975 | |
| 1976 | /* set up our urb */ |
Johan Hovold | fd11961 | 2011-11-06 19:06:30 +0100 | [diff] [blame] | 1977 | port->write_urb->transfer_buffer_length = count; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1978 | |
| 1979 | /* send the data out the bulk port */ |
| 1980 | result = usb_submit_urb(port->write_urb, GFP_ATOMIC); |
| 1981 | if (result) { |
Johan Hovold | 22a416c | 2012-02-10 13:20:51 +0100 | [diff] [blame] | 1982 | dev_err_console(port, |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1983 | "%s - failed submitting write urb, error %d\n", |
| 1984 | __func__, result); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1985 | edge_port->ep_write_urb_in_use = 0; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1986 | /* TODO: reschedule edge_send */ |
| 1987 | } else |
Johan Hovold | cf9a9d6 | 2013-03-21 12:37:09 +0100 | [diff] [blame] | 1988 | edge_port->port->icount.tx += count; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1989 | |
| 1990 | /* wakeup any process waiting for writes to complete */ |
| 1991 | /* there is now more room in the buffer for new writes */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 1992 | if (tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1993 | tty_wakeup(tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1994 | } |
| 1995 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1996 | static int edge_write_room(struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1997 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 1998 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1999 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 2000 | int room = 0; |
| 2001 | unsigned long flags; |
| 2002 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2003 | if (edge_port == NULL) |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2004 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2005 | if (edge_port->close_pending == 1) |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2006 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2007 | |
| 2008 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
Johan Hovold | d733cec | 2010-05-19 00:01:37 +0200 | [diff] [blame] | 2009 | room = kfifo_avail(&edge_port->write_fifo); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2010 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
| 2011 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2012 | dev_dbg(&port->dev, "%s - returns %d\n", __func__, room); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2013 | return room; |
| 2014 | } |
| 2015 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2016 | static int edge_chars_in_buffer(struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2017 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2018 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2019 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 2020 | int chars = 0; |
| 2021 | unsigned long flags; |
Johan Hovold | 263e1f9 | 2013-01-14 16:52:57 +0100 | [diff] [blame] | 2022 | int ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2023 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2024 | if (edge_port == NULL) |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2025 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2026 | |
| 2027 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
Johan Hovold | d733cec | 2010-05-19 00:01:37 +0200 | [diff] [blame] | 2028 | chars = kfifo_len(&edge_port->write_fifo); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2029 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
| 2030 | |
Johan Hovold | 263e1f9 | 2013-01-14 16:52:57 +0100 | [diff] [blame] | 2031 | if (!chars) { |
| 2032 | ret = tx_active(edge_port); |
| 2033 | if (ret > 0) |
| 2034 | chars = ret; |
| 2035 | } |
| 2036 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2037 | dev_dbg(&port->dev, "%s - returns %d\n", __func__, chars); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2038 | return chars; |
| 2039 | } |
| 2040 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2041 | static void edge_throttle(struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2042 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2043 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2044 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2045 | int status; |
| 2046 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2047 | if (edge_port == NULL) |
| 2048 | return; |
| 2049 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2050 | /* if we are implementing XON/XOFF, send the stop character */ |
| 2051 | if (I_IXOFF(tty)) { |
| 2052 | unsigned char stop_char = STOP_CHAR(tty); |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2053 | status = edge_write(tty, port, &stop_char, 1); |
| 2054 | if (status <= 0) { |
| 2055 | dev_err(&port->dev, "%s - failed to write stop character, %d\n", __func__, status); |
| 2056 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2057 | } |
| 2058 | |
| 2059 | /* if we are implementing RTS/CTS, stop reads */ |
| 2060 | /* and the Edgeport will clear the RTS line */ |
| 2061 | if (C_CRTSCTS(tty)) |
| 2062 | stop_read(edge_port); |
| 2063 | |
| 2064 | } |
| 2065 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2066 | static void edge_unthrottle(struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2067 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2068 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2069 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2070 | int status; |
| 2071 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2072 | if (edge_port == NULL) |
| 2073 | return; |
| 2074 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2075 | /* if we are implementing XON/XOFF, send the start character */ |
| 2076 | if (I_IXOFF(tty)) { |
| 2077 | unsigned char start_char = START_CHAR(tty); |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2078 | status = edge_write(tty, port, &start_char, 1); |
| 2079 | if (status <= 0) { |
| 2080 | dev_err(&port->dev, "%s - failed to write start character, %d\n", __func__, status); |
| 2081 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2082 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2083 | /* if we are implementing RTS/CTS, restart reads */ |
| 2084 | /* are the Edgeport will assert the RTS line */ |
| 2085 | if (C_CRTSCTS(tty)) { |
| 2086 | status = restart_read(edge_port); |
| 2087 | if (status) |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2088 | dev_err(&port->dev, |
| 2089 | "%s - read bulk usb_submit_urb failed: %d\n", |
| 2090 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2091 | } |
| 2092 | |
| 2093 | } |
| 2094 | |
| 2095 | static void stop_read(struct edgeport_port *edge_port) |
| 2096 | { |
| 2097 | unsigned long flags; |
| 2098 | |
| 2099 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
| 2100 | |
| 2101 | if (edge_port->ep_read_urb_state == EDGE_READ_URB_RUNNING) |
| 2102 | edge_port->ep_read_urb_state = EDGE_READ_URB_STOPPING; |
| 2103 | edge_port->shadow_mcr &= ~MCR_RTS; |
| 2104 | |
| 2105 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
| 2106 | } |
| 2107 | |
| 2108 | static int restart_read(struct edgeport_port *edge_port) |
| 2109 | { |
| 2110 | struct urb *urb; |
| 2111 | int status = 0; |
| 2112 | unsigned long flags; |
| 2113 | |
| 2114 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
| 2115 | |
| 2116 | if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPED) { |
| 2117 | urb = edge_port->port->read_urb; |
Oliver Neukum | efdff60 | 2007-06-05 10:50:48 +0200 | [diff] [blame] | 2118 | status = usb_submit_urb(urb, GFP_ATOMIC); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2119 | } |
| 2120 | edge_port->ep_read_urb_state = EDGE_READ_URB_RUNNING; |
| 2121 | edge_port->shadow_mcr |= MCR_RTS; |
| 2122 | |
| 2123 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
| 2124 | |
| 2125 | return status; |
| 2126 | } |
| 2127 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2128 | static void change_port_settings(struct tty_struct *tty, |
| 2129 | struct edgeport_port *edge_port, struct ktermios *old_termios) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2130 | { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2131 | struct device *dev = &edge_port->port->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2132 | struct ump_uart_config *config; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2133 | int baud; |
| 2134 | unsigned cflag; |
| 2135 | int status; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2136 | int port_number = edge_port->port->number - |
| 2137 | edge_port->port->serial->minor; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2138 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2139 | dev_dbg(dev, "%s - port %d\n", __func__, edge_port->port->number); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2140 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2141 | config = kmalloc (sizeof (*config), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2142 | if (!config) { |
Alan Cox | adc8d74 | 2012-07-14 15:31:47 +0100 | [diff] [blame] | 2143 | tty->termios = *old_termios; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2144 | dev_err(dev, "%s - out of memory\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2145 | return; |
| 2146 | } |
| 2147 | |
Alan Cox | adc8d74 | 2012-07-14 15:31:47 +0100 | [diff] [blame] | 2148 | cflag = tty->termios.c_cflag; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2149 | |
| 2150 | config->wFlags = 0; |
| 2151 | |
| 2152 | /* These flags must be set */ |
| 2153 | config->wFlags |= UMP_MASK_UART_FLAGS_RECEIVE_MS_INT; |
| 2154 | config->wFlags |= UMP_MASK_UART_FLAGS_AUTO_START_ON_ERR; |
| 2155 | config->bUartMode = (__u8)(edge_port->bUartMode); |
| 2156 | |
| 2157 | switch (cflag & CSIZE) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2158 | case CS5: |
| 2159 | config->bDataBits = UMP_UART_CHAR5BITS; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2160 | dev_dbg(dev, "%s - data bits = 5\n", __func__); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2161 | break; |
| 2162 | case CS6: |
| 2163 | config->bDataBits = UMP_UART_CHAR6BITS; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2164 | dev_dbg(dev, "%s - data bits = 6\n", __func__); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2165 | break; |
| 2166 | case CS7: |
| 2167 | config->bDataBits = UMP_UART_CHAR7BITS; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2168 | dev_dbg(dev, "%s - data bits = 7\n", __func__); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2169 | break; |
| 2170 | default: |
| 2171 | case CS8: |
| 2172 | config->bDataBits = UMP_UART_CHAR8BITS; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2173 | dev_dbg(dev, "%s - data bits = 8\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2174 | break; |
| 2175 | } |
| 2176 | |
| 2177 | if (cflag & PARENB) { |
| 2178 | if (cflag & PARODD) { |
| 2179 | config->wFlags |= UMP_MASK_UART_FLAGS_PARITY; |
| 2180 | config->bParity = UMP_UART_ODDPARITY; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2181 | dev_dbg(dev, "%s - parity = odd\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2182 | } else { |
| 2183 | config->wFlags |= UMP_MASK_UART_FLAGS_PARITY; |
| 2184 | config->bParity = UMP_UART_EVENPARITY; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2185 | dev_dbg(dev, "%s - parity = even\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2186 | } |
| 2187 | } else { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2188 | config->bParity = UMP_UART_NOPARITY; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2189 | dev_dbg(dev, "%s - parity = none\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2190 | } |
| 2191 | |
| 2192 | if (cflag & CSTOPB) { |
| 2193 | config->bStopBits = UMP_UART_STOPBIT2; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2194 | dev_dbg(dev, "%s - stop bits = 2\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2195 | } else { |
| 2196 | config->bStopBits = UMP_UART_STOPBIT1; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2197 | dev_dbg(dev, "%s - stop bits = 1\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2198 | } |
| 2199 | |
| 2200 | /* figure out the flow control settings */ |
| 2201 | if (cflag & CRTSCTS) { |
| 2202 | config->wFlags |= UMP_MASK_UART_FLAGS_OUT_X_CTS_FLOW; |
| 2203 | config->wFlags |= UMP_MASK_UART_FLAGS_RTS_FLOW; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2204 | dev_dbg(dev, "%s - RTS/CTS is enabled\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2205 | } else { |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2206 | dev_dbg(dev, "%s - RTS/CTS is disabled\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2207 | tty->hw_stopped = 0; |
| 2208 | restart_read(edge_port); |
| 2209 | } |
| 2210 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2211 | /* if we are implementing XON/XOFF, set the start and stop |
| 2212 | character in the device */ |
| 2213 | config->cXon = START_CHAR(tty); |
| 2214 | config->cXoff = STOP_CHAR(tty); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2215 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2216 | /* if we are implementing INBOUND XON/XOFF */ |
| 2217 | if (I_IXOFF(tty)) { |
| 2218 | config->wFlags |= UMP_MASK_UART_FLAGS_IN_X; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2219 | dev_dbg(dev, "%s - INBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x\n", |
| 2220 | __func__, config->cXon, config->cXoff); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2221 | } else |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2222 | dev_dbg(dev, "%s - INBOUND XON/XOFF is disabled\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2223 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2224 | /* if we are implementing OUTBOUND XON/XOFF */ |
| 2225 | if (I_IXON(tty)) { |
| 2226 | config->wFlags |= UMP_MASK_UART_FLAGS_OUT_X; |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2227 | dev_dbg(dev, "%s - OUTBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x\n", |
| 2228 | __func__, config->cXon, config->cXoff); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2229 | } else |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2230 | dev_dbg(dev, "%s - OUTBOUND XON/XOFF is disabled\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2231 | |
Alan Cox | adc8d74 | 2012-07-14 15:31:47 +0100 | [diff] [blame] | 2232 | tty->termios.c_cflag &= ~CMSPAR; |
Alan Cox | d5f5bcd | 2008-01-03 16:57:33 +0000 | [diff] [blame] | 2233 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2234 | /* Round the baud rate */ |
| 2235 | baud = tty_get_baud_rate(tty); |
| 2236 | if (!baud) { |
| 2237 | /* pick a default, any default... */ |
| 2238 | baud = 9600; |
Alan Cox | d5f5bcd | 2008-01-03 16:57:33 +0000 | [diff] [blame] | 2239 | } else |
| 2240 | tty_encode_baud_rate(tty, baud, baud); |
| 2241 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2242 | edge_port->baud_rate = baud; |
| 2243 | config->wBaudRate = (__u16)((461550L + baud/2) / baud); |
| 2244 | |
Alan Cox | d5f5bcd | 2008-01-03 16:57:33 +0000 | [diff] [blame] | 2245 | /* FIXME: Recompute actual baud from divisor here */ |
| 2246 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2247 | 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] | 2248 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2249 | dev_dbg(dev, "wBaudRate: %d\n", (int)(461550L / config->wBaudRate)); |
| 2250 | dev_dbg(dev, "wFlags: 0x%x\n", config->wFlags); |
| 2251 | dev_dbg(dev, "bDataBits: %d\n", config->bDataBits); |
| 2252 | dev_dbg(dev, "bParity: %d\n", config->bParity); |
| 2253 | dev_dbg(dev, "bStopBits: %d\n", config->bStopBits); |
| 2254 | dev_dbg(dev, "cXon: %d\n", config->cXon); |
| 2255 | dev_dbg(dev, "cXoff: %d\n", config->cXoff); |
| 2256 | dev_dbg(dev, "bUartMode: %d\n", config->bUartMode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2257 | |
| 2258 | /* move the word values into big endian mode */ |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2259 | cpu_to_be16s(&config->wFlags); |
| 2260 | cpu_to_be16s(&config->wBaudRate); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2261 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2262 | status = send_cmd(edge_port->port->serial->dev, UMPC_SET_CONFIG, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2263 | (__u8)(UMPM_UART1_PORT + port_number), |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2264 | 0, (__u8 *)config, sizeof(*config)); |
| 2265 | if (status) |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2266 | dev_dbg(dev, "%s - error %d when trying to write config to device\n", |
| 2267 | __func__, status); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2268 | kfree(config); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2269 | } |
| 2270 | |
Alan Cox | 2e0ddd6 | 2008-07-22 11:12:33 +0100 | [diff] [blame] | 2271 | static void edge_set_termios(struct tty_struct *tty, |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2272 | struct usb_serial_port *port, struct ktermios *old_termios) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2273 | { |
| 2274 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2275 | unsigned int cflag; |
| 2276 | |
Alan Cox | adc8d74 | 2012-07-14 15:31:47 +0100 | [diff] [blame] | 2277 | cflag = tty->termios.c_cflag; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2278 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2279 | dev_dbg(&port->dev, "%s - clfag %08x iflag %08x\n", __func__, |
Linus Torvalds | d9a8074 | 2012-10-01 13:23:01 -0700 | [diff] [blame] | 2280 | tty->termios.c_cflag, tty->termios.c_iflag); |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2281 | dev_dbg(&port->dev, "%s - old clfag %08x old iflag %08x\n", __func__, |
| 2282 | old_termios->c_cflag, old_termios->c_iflag); |
| 2283 | dev_dbg(&port->dev, "%s - port %d\n", __func__, port->number); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2284 | |
| 2285 | if (edge_port == NULL) |
| 2286 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2287 | /* change the port settings to the new ones specified */ |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2288 | change_port_settings(tty, edge_port, old_termios); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2289 | } |
| 2290 | |
Alan Cox | 20b9d17 | 2011-02-14 16:26:50 +0000 | [diff] [blame] | 2291 | static int edge_tiocmset(struct tty_struct *tty, |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2292 | unsigned int set, unsigned int clear) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2293 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2294 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2295 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 2296 | unsigned int mcr; |
Alan Cox | 3d71fe0 | 2008-02-20 21:38:32 +0000 | [diff] [blame] | 2297 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2298 | |
Alan Cox | 3d71fe0 | 2008-02-20 21:38:32 +0000 | [diff] [blame] | 2299 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2300 | mcr = edge_port->shadow_mcr; |
| 2301 | if (set & TIOCM_RTS) |
| 2302 | mcr |= MCR_RTS; |
| 2303 | if (set & TIOCM_DTR) |
| 2304 | mcr |= MCR_DTR; |
| 2305 | if (set & TIOCM_LOOP) |
| 2306 | mcr |= MCR_LOOPBACK; |
| 2307 | |
| 2308 | if (clear & TIOCM_RTS) |
| 2309 | mcr &= ~MCR_RTS; |
| 2310 | if (clear & TIOCM_DTR) |
| 2311 | mcr &= ~MCR_DTR; |
| 2312 | if (clear & TIOCM_LOOP) |
| 2313 | mcr &= ~MCR_LOOPBACK; |
| 2314 | |
| 2315 | edge_port->shadow_mcr = mcr; |
Alan Cox | 3d71fe0 | 2008-02-20 21:38:32 +0000 | [diff] [blame] | 2316 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2317 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2318 | restore_mcr(edge_port, mcr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2319 | return 0; |
| 2320 | } |
| 2321 | |
Alan Cox | 60b33c1 | 2011-02-14 16:26:14 +0000 | [diff] [blame] | 2322 | static int edge_tiocmget(struct tty_struct *tty) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2323 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2324 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2325 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 2326 | unsigned int result = 0; |
| 2327 | unsigned int msr; |
| 2328 | unsigned int mcr; |
Alan Cox | 3d71fe0 | 2008-02-20 21:38:32 +0000 | [diff] [blame] | 2329 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2330 | |
Alan Cox | 3d71fe0 | 2008-02-20 21:38:32 +0000 | [diff] [blame] | 2331 | spin_lock_irqsave(&edge_port->ep_lock, flags); |
| 2332 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2333 | msr = edge_port->shadow_msr; |
| 2334 | mcr = edge_port->shadow_mcr; |
| 2335 | result = ((mcr & MCR_DTR) ? TIOCM_DTR: 0) /* 0x002 */ |
| 2336 | | ((mcr & MCR_RTS) ? TIOCM_RTS: 0) /* 0x004 */ |
| 2337 | | ((msr & EDGEPORT_MSR_CTS) ? TIOCM_CTS: 0) /* 0x020 */ |
| 2338 | | ((msr & EDGEPORT_MSR_CD) ? TIOCM_CAR: 0) /* 0x040 */ |
| 2339 | | ((msr & EDGEPORT_MSR_RI) ? TIOCM_RI: 0) /* 0x080 */ |
| 2340 | | ((msr & EDGEPORT_MSR_DSR) ? TIOCM_DSR: 0); /* 0x100 */ |
| 2341 | |
| 2342 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2343 | dev_dbg(&port->dev, "%s -- %x\n", __func__, result); |
Alan Cox | 3d71fe0 | 2008-02-20 21:38:32 +0000 | [diff] [blame] | 2344 | spin_unlock_irqrestore(&edge_port->ep_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2345 | |
| 2346 | return result; |
| 2347 | } |
| 2348 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2349 | static int get_serial_info(struct edgeport_port *edge_port, |
| 2350 | struct serial_struct __user *retinfo) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2351 | { |
| 2352 | struct serial_struct tmp; |
Johan Hovold | f40d781 | 2013-01-14 16:52:58 +0100 | [diff] [blame] | 2353 | unsigned cwait; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2354 | |
| 2355 | if (!retinfo) |
| 2356 | return -EFAULT; |
| 2357 | |
Johan Hovold | f40d781 | 2013-01-14 16:52:58 +0100 | [diff] [blame] | 2358 | cwait = edge_port->port->port.closing_wait; |
| 2359 | if (cwait != ASYNC_CLOSING_WAIT_NONE) |
Johan Hovold | b6fd35e | 2013-04-18 17:33:17 +0200 | [diff] [blame] | 2360 | cwait = jiffies_to_msecs(cwait) / 10; |
Johan Hovold | f40d781 | 2013-01-14 16:52:58 +0100 | [diff] [blame] | 2361 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2362 | memset(&tmp, 0, sizeof(tmp)); |
| 2363 | |
| 2364 | tmp.type = PORT_16550A; |
| 2365 | tmp.line = edge_port->port->serial->minor; |
| 2366 | tmp.port = edge_port->port->number; |
| 2367 | tmp.irq = 0; |
| 2368 | tmp.flags = ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ; |
| 2369 | tmp.xmit_fifo_size = edge_port->port->bulk_out_size; |
| 2370 | tmp.baud_base = 9600; |
| 2371 | tmp.close_delay = 5*HZ; |
Johan Hovold | f40d781 | 2013-01-14 16:52:58 +0100 | [diff] [blame] | 2372 | tmp.closing_wait = cwait; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2373 | |
| 2374 | if (copy_to_user(retinfo, &tmp, sizeof(*retinfo))) |
| 2375 | return -EFAULT; |
| 2376 | return 0; |
| 2377 | } |
| 2378 | |
Alan Cox | 00a0d0d | 2011-02-14 16:27:06 +0000 | [diff] [blame] | 2379 | static int edge_ioctl(struct tty_struct *tty, |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2380 | unsigned int cmd, unsigned long arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2381 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2382 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2383 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2384 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2385 | dev_dbg(&port->dev, "%s - port %d, cmd = 0x%x\n", __func__, port->number, cmd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2386 | |
| 2387 | switch (cmd) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2388 | case TIOCGSERIAL: |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2389 | dev_dbg(&port->dev, "%s - TIOCGSERIAL\n", __func__); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2390 | return get_serial_info(edge_port, |
| 2391 | (struct serial_struct __user *) arg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2392 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2393 | return -ENOIOCTLCMD; |
| 2394 | } |
| 2395 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2396 | static void edge_break(struct tty_struct *tty, int break_state) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2397 | { |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2398 | struct usb_serial_port *port = tty->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2399 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 2400 | int status; |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2401 | int bv = 0; /* Off */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2402 | |
Alan Cox | 95da310 | 2008-07-22 11:09:07 +0100 | [diff] [blame] | 2403 | if (break_state == -1) |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2404 | bv = 1; /* On */ |
| 2405 | status = ti_do_config(edge_port, UMPC_SET_CLR_BREAK, bv); |
| 2406 | if (status) |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2407 | dev_dbg(&port->dev, "%s - error %d sending break set/clear command.\n", |
| 2408 | __func__, status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2409 | } |
| 2410 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2411 | static int edge_startup(struct usb_serial *serial) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2412 | { |
| 2413 | struct edgeport_serial *edge_serial; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2414 | int status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2415 | |
| 2416 | /* create our private serial structure */ |
Eric Sesterhenn | 80b6ca4 | 2006-02-27 21:29:43 +0100 | [diff] [blame] | 2417 | edge_serial = kzalloc(sizeof(struct edgeport_serial), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2418 | if (edge_serial == NULL) { |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 2419 | dev_err(&serial->dev->dev, "%s - Out of memory\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2420 | return -ENOMEM; |
| 2421 | } |
Matthias Kaehlcke | 241ca64 | 2007-12-04 16:15:40 +0100 | [diff] [blame] | 2422 | mutex_init(&edge_serial->es_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2423 | edge_serial->serial = serial; |
| 2424 | usb_set_serial_data(serial, edge_serial); |
| 2425 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2426 | status = download_fw(edge_serial); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2427 | if (status) { |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2428 | kfree(edge_serial); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2429 | return status; |
| 2430 | } |
| 2431 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2432 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2433 | } |
| 2434 | |
Alan Stern | f9c99bb | 2009-06-02 11:53:55 -0400 | [diff] [blame] | 2435 | static void edge_disconnect(struct usb_serial *serial) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2436 | { |
Alan Stern | f9c99bb | 2009-06-02 11:53:55 -0400 | [diff] [blame] | 2437 | } |
| 2438 | |
| 2439 | static void edge_release(struct usb_serial *serial) |
| 2440 | { |
Jesper Juhl | 0d46c00 | 2007-07-16 22:17:25 +0200 | [diff] [blame] | 2441 | kfree(usb_get_serial_data(serial)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2442 | } |
| 2443 | |
Johan Hovold | 0036153 | 2012-10-17 13:34:58 +0200 | [diff] [blame] | 2444 | static int edge_port_probe(struct usb_serial_port *port) |
| 2445 | { |
| 2446 | struct edgeport_port *edge_port; |
| 2447 | int ret; |
| 2448 | |
| 2449 | edge_port = kzalloc(sizeof(*edge_port), GFP_KERNEL); |
| 2450 | if (!edge_port) |
| 2451 | return -ENOMEM; |
| 2452 | |
| 2453 | ret = kfifo_alloc(&edge_port->write_fifo, EDGE_OUT_BUF_SIZE, |
| 2454 | GFP_KERNEL); |
| 2455 | if (ret) { |
| 2456 | kfree(edge_port); |
| 2457 | return -ENOMEM; |
| 2458 | } |
| 2459 | |
Johan Hovold | 0036153 | 2012-10-17 13:34:58 +0200 | [diff] [blame] | 2460 | spin_lock_init(&edge_port->ep_lock); |
| 2461 | edge_port->port = port; |
| 2462 | edge_port->edge_serial = usb_get_serial_data(port->serial); |
| 2463 | edge_port->bUartMode = default_uart_mode; |
| 2464 | |
| 2465 | usb_set_serial_port_data(port, edge_port); |
| 2466 | |
Johan Hovold | 5d8c61b | 2012-10-18 11:43:28 +0200 | [diff] [blame] | 2467 | ret = edge_create_sysfs_attrs(port); |
| 2468 | if (ret) { |
| 2469 | kfifo_free(&edge_port->write_fifo); |
| 2470 | kfree(edge_port); |
| 2471 | return ret; |
| 2472 | } |
| 2473 | |
Johan Hovold | f40d781 | 2013-01-14 16:52:58 +0100 | [diff] [blame] | 2474 | port->port.closing_wait = msecs_to_jiffies(closing_wait * 10); |
| 2475 | |
Johan Hovold | 0036153 | 2012-10-17 13:34:58 +0200 | [diff] [blame] | 2476 | return 0; |
| 2477 | } |
| 2478 | |
| 2479 | static int edge_port_remove(struct usb_serial_port *port) |
| 2480 | { |
| 2481 | struct edgeport_port *edge_port; |
| 2482 | |
| 2483 | edge_port = usb_get_serial_port_data(port); |
Johan Hovold | 0036153 | 2012-10-17 13:34:58 +0200 | [diff] [blame] | 2484 | edge_remove_sysfs_attrs(port); |
| 2485 | kfifo_free(&edge_port->write_fifo); |
| 2486 | kfree(edge_port); |
| 2487 | |
| 2488 | return 0; |
| 2489 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2490 | |
Martin K. Petersen | fc4cbd7 | 2007-05-22 15:57:04 -0400 | [diff] [blame] | 2491 | /* Sysfs Attributes */ |
| 2492 | |
| 2493 | static ssize_t show_uart_mode(struct device *dev, |
| 2494 | struct device_attribute *attr, char *buf) |
| 2495 | { |
| 2496 | struct usb_serial_port *port = to_usb_serial_port(dev); |
| 2497 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 2498 | |
| 2499 | return sprintf(buf, "%d\n", edge_port->bUartMode); |
| 2500 | } |
| 2501 | |
| 2502 | static ssize_t store_uart_mode(struct device *dev, |
| 2503 | struct device_attribute *attr, const char *valbuf, size_t count) |
| 2504 | { |
| 2505 | struct usb_serial_port *port = to_usb_serial_port(dev); |
| 2506 | struct edgeport_port *edge_port = usb_get_serial_port_data(port); |
| 2507 | unsigned int v = simple_strtoul(valbuf, NULL, 0); |
| 2508 | |
Greg Kroah-Hartman | 67e6da7 | 2012-09-14 16:58:58 -0700 | [diff] [blame] | 2509 | dev_dbg(dev, "%s: setting uart_mode = %d\n", __func__, v); |
Martin K. Petersen | fc4cbd7 | 2007-05-22 15:57:04 -0400 | [diff] [blame] | 2510 | |
| 2511 | if (v < 256) |
| 2512 | edge_port->bUartMode = v; |
| 2513 | else |
Harvey Harrison | 441b62c | 2008-03-03 16:08:34 -0800 | [diff] [blame] | 2514 | 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] | 2515 | |
| 2516 | return count; |
| 2517 | } |
| 2518 | |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2519 | static DEVICE_ATTR(uart_mode, S_IWUSR | S_IRUGO, show_uart_mode, |
| 2520 | store_uart_mode); |
Martin K. Petersen | fc4cbd7 | 2007-05-22 15:57:04 -0400 | [diff] [blame] | 2521 | |
| 2522 | static int edge_create_sysfs_attrs(struct usb_serial_port *port) |
| 2523 | { |
| 2524 | return device_create_file(&port->dev, &dev_attr_uart_mode); |
| 2525 | } |
| 2526 | |
| 2527 | static int edge_remove_sysfs_attrs(struct usb_serial_port *port) |
| 2528 | { |
| 2529 | device_remove_file(&port->dev, &dev_attr_uart_mode); |
| 2530 | return 0; |
| 2531 | } |
| 2532 | |
| 2533 | |
Greg Kroah-Hartman | ea65370 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 2534 | static struct usb_serial_driver edgeport_1port_device = { |
Greg Kroah-Hartman | 18fcac3 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 2535 | .driver = { |
Greg Kroah-Hartman | 269bda1 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 2536 | .owner = THIS_MODULE, |
| 2537 | .name = "edgeport_ti_1", |
Greg Kroah-Hartman | 18fcac3 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 2538 | }, |
Greg Kroah-Hartman | 269bda1 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 2539 | .description = "Edgeport TI 1 port adapter", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2540 | .id_table = edgeport_1port_id_table, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2541 | .num_ports = 1, |
| 2542 | .open = edge_open, |
| 2543 | .close = edge_close, |
| 2544 | .throttle = edge_throttle, |
| 2545 | .unthrottle = edge_unthrottle, |
| 2546 | .attach = edge_startup, |
Alan Stern | f9c99bb | 2009-06-02 11:53:55 -0400 | [diff] [blame] | 2547 | .disconnect = edge_disconnect, |
| 2548 | .release = edge_release, |
Johan Hovold | 0036153 | 2012-10-17 13:34:58 +0200 | [diff] [blame] | 2549 | .port_probe = edge_port_probe, |
| 2550 | .port_remove = edge_port_remove, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2551 | .ioctl = edge_ioctl, |
| 2552 | .set_termios = edge_set_termios, |
| 2553 | .tiocmget = edge_tiocmget, |
| 2554 | .tiocmset = edge_tiocmset, |
Johan Hovold | 48ee580 | 2013-03-21 12:37:10 +0100 | [diff] [blame] | 2555 | .tiocmiwait = usb_serial_generic_tiocmiwait, |
Johan Hovold | cf9a9d6 | 2013-03-21 12:37:09 +0100 | [diff] [blame] | 2556 | .get_icount = usb_serial_generic_get_icount, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2557 | .write = edge_write, |
| 2558 | .write_room = edge_write_room, |
| 2559 | .chars_in_buffer = edge_chars_in_buffer, |
| 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 | |
Greg Kroah-Hartman | ea65370 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 2566 | static struct usb_serial_driver edgeport_2port_device = { |
Greg Kroah-Hartman | 18fcac3 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 2567 | .driver = { |
Greg Kroah-Hartman | 269bda1 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 2568 | .owner = THIS_MODULE, |
| 2569 | .name = "edgeport_ti_2", |
Greg Kroah-Hartman | 18fcac3 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 2570 | }, |
Greg Kroah-Hartman | 269bda1 | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 2571 | .description = "Edgeport TI 2 port adapter", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2572 | .id_table = edgeport_2port_id_table, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2573 | .num_ports = 2, |
| 2574 | .open = edge_open, |
| 2575 | .close = edge_close, |
| 2576 | .throttle = edge_throttle, |
| 2577 | .unthrottle = edge_unthrottle, |
| 2578 | .attach = edge_startup, |
Alan Stern | f9c99bb | 2009-06-02 11:53:55 -0400 | [diff] [blame] | 2579 | .disconnect = edge_disconnect, |
| 2580 | .release = edge_release, |
Johan Hovold | 0036153 | 2012-10-17 13:34:58 +0200 | [diff] [blame] | 2581 | .port_probe = edge_port_probe, |
| 2582 | .port_remove = edge_port_remove, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2583 | .ioctl = edge_ioctl, |
| 2584 | .set_termios = edge_set_termios, |
| 2585 | .tiocmget = edge_tiocmget, |
| 2586 | .tiocmset = edge_tiocmset, |
Johan Hovold | 48ee580 | 2013-03-21 12:37:10 +0100 | [diff] [blame] | 2587 | .tiocmiwait = usb_serial_generic_tiocmiwait, |
Johan Hovold | cf9a9d6 | 2013-03-21 12:37:09 +0100 | [diff] [blame] | 2588 | .get_icount = usb_serial_generic_get_icount, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2589 | .write = edge_write, |
| 2590 | .write_room = edge_write_room, |
| 2591 | .chars_in_buffer = edge_chars_in_buffer, |
| 2592 | .break_ctl = edge_break, |
| 2593 | .read_int_callback = edge_interrupt_callback, |
| 2594 | .read_bulk_callback = edge_bulk_in_callback, |
| 2595 | .write_bulk_callback = edge_bulk_out_callback, |
| 2596 | }; |
| 2597 | |
Alan Stern | 7dbe246 | 2012-02-23 14:56:57 -0500 | [diff] [blame] | 2598 | static struct usb_serial_driver * const serial_drivers[] = { |
| 2599 | &edgeport_1port_device, &edgeport_2port_device, NULL |
| 2600 | }; |
| 2601 | |
Greg Kroah-Hartman | 68e2411 | 2012-05-08 15:46:14 -0700 | [diff] [blame] | 2602 | module_usb_serial_driver(serial_drivers, id_table_combined); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2603 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2604 | MODULE_AUTHOR(DRIVER_AUTHOR); |
| 2605 | MODULE_DESCRIPTION(DRIVER_DESC); |
| 2606 | MODULE_LICENSE("GPL"); |
Jaswinder Singh | d12b219 | 2008-07-04 23:06:09 +0530 | [diff] [blame] | 2607 | MODULE_FIRMWARE("edgeport/down3.bin"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2608 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2609 | module_param(closing_wait, int, S_IRUGO | S_IWUSR); |
| 2610 | MODULE_PARM_DESC(closing_wait, "Maximum wait for data to drain, in .01 secs"); |
| 2611 | |
| 2612 | module_param(ignore_cpu_rev, bool, S_IRUGO | S_IWUSR); |
Alan Cox | 2742fd8 | 2008-04-29 14:45:15 +0100 | [diff] [blame] | 2613 | MODULE_PARM_DESC(ignore_cpu_rev, |
| 2614 | "Ignore the cpu revision when connecting to a device"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2615 | |
Martin K. Petersen | fc4cbd7 | 2007-05-22 15:57:04 -0400 | [diff] [blame] | 2616 | module_param(default_uart_mode, int, S_IRUGO | S_IWUSR); |
| 2617 | MODULE_PARM_DESC(default_uart_mode, "Default uart_mode, 0=RS232, ..."); |