2 * Edgeport USB Serial Converter driver
4 * Copyright (C) 2000-2002 Inside Out Networks, All rights reserved.
5 * Copyright (C) 2001-2002 Greg Kroah-Hartman <greg@kroah.com>
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.
12 * Supports the following devices:
13 * EP/1 EP/2 EP/4 EP/21 EP/22 EP/221 EP/42 EP/421 WATCHPORT
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>.
21 * July 11, 2002 Removed 4 port device structure since all TI UMP
22 * chips have only 2 ports
23 * David Iacovelli (davidi@ionetworks.com)
27 #include <linux/kernel.h>
28 #include <linux/jiffies.h>
29 #include <linux/errno.h>
30 #include <linux/init.h>
31 #include <linux/slab.h>
32 #include <linux/tty.h>
33 #include <linux/tty_driver.h>
34 #include <linux/tty_flip.h>
35 #include <linux/module.h>
36 #include <linux/spinlock.h>
37 #include <linux/mutex.h>
38 #include <linux/serial.h>
39 #include <linux/kfifo.h>
40 #include <linux/ioctl.h>
41 #include <linux/firmware.h>
42 #include <linux/uaccess.h>
43 #include <linux/usb.h>
44 #include <linux/usb/serial.h>
47 #include "io_usbvend.h"
53 #define DRIVER_VERSION "v0.7mode043006"
54 #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com> and David Iacovelli"
55 #define DRIVER_DESC "Edgeport USB Serial Driver"
57 #define EPROM_PAGE_SIZE 64
60 /* different hardware types */
61 #define HARDWARE_TYPE_930 0
62 #define HARDWARE_TYPE_TIUMP 1
64 /* IOCTL_PRIVATE_TI_GET_MODE Definitions */
65 #define TI_MODE_CONFIGURING 0 /* Device has not entered start device */
66 #define TI_MODE_BOOT 1 /* Staying in boot mode */
67 #define TI_MODE_DOWNLOAD 2 /* Made it to download mode */
68 #define TI_MODE_TRANSITIONING 3 /* Currently in boot mode but
69 transitioning to download mode */
72 #define EDGE_READ_URB_RUNNING 0
73 #define EDGE_READ_URB_STOPPING 1
74 #define EDGE_READ_URB_STOPPED 2
76 #define EDGE_CLOSING_WAIT 4000 /* in .01 sec */
78 #define EDGE_OUT_BUF_SIZE 1024
81 /* Product information read from the Edgeport */
83 int TiMode
; /* Current TI Mode */
84 __u8 hardware_type
; /* Type of hardware */
85 } __attribute__((packed
));
87 struct edgeport_port
{
94 __u32 ump_read_timeout
; /* Number of milliseconds the UMP will
95 wait without data before completing
100 struct async_icount icount
;
101 wait_queue_head_t delta_msr_wait
; /* for handling sleeping while
102 waiting for msr change to
104 struct edgeport_serial
*edge_serial
;
105 struct usb_serial_port
*port
;
106 __u8 bUartMode
; /* Port type, 0: RS232, etc. */
108 int ep_read_urb_state
;
109 int ep_write_urb_in_use
;
110 struct kfifo write_fifo
;
113 struct edgeport_serial
{
114 struct product_info product_info
;
115 u8 TI_I2C_Type
; /* Type of I2C in UMP */
116 u8 TiReadI2C
; /* Set to TRUE if we have read the
118 struct mutex es_lock
;
120 struct usb_serial
*serial
;
124 /* Devices that this driver supports */
125 static const struct usb_device_id edgeport_1port_id_table
[] = {
126 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_1
) },
127 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1
) },
128 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1I
) },
129 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_PROXIMITY
) },
130 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_MOTION
) },
131 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_MOISTURE
) },
132 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_TEMPERATURE
) },
133 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_HUMIDITY
) },
134 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_POWER
) },
135 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_LIGHT
) },
136 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_RADIATION
) },
137 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_DISTANCE
) },
138 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_ACCELERATION
) },
139 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_PROX_DIST
) },
140 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_PLUS_PWR_HP4CD
) },
141 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_PLUS_PWR_PCI
) },
145 static const struct usb_device_id edgeport_2port_id_table
[] = {
146 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_2
) },
147 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_2C
) },
148 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_2I
) },
149 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_421
) },
150 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_21
) },
151 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_42
) },
152 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_4
) },
153 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_4I
) },
154 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_22I
) },
155 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_221C
) },
156 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_22C
) },
157 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_21C
) },
158 /* The 4, 8 and 16 port devices show up as multiple 2 port devices */
159 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_4S
) },
160 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_8
) },
161 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_8S
) },
162 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_416
) },
163 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_416B
) },
167 /* Devices that this driver supports */
168 static const struct usb_device_id id_table_combined
[] = {
169 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_1
) },
170 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1
) },
171 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1I
) },
172 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_PROXIMITY
) },
173 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_MOTION
) },
174 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_MOISTURE
) },
175 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_TEMPERATURE
) },
176 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_HUMIDITY
) },
177 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_POWER
) },
178 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_LIGHT
) },
179 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_RADIATION
) },
180 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_DISTANCE
) },
181 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_ACCELERATION
) },
182 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_WP_PROX_DIST
) },
183 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_PLUS_PWR_HP4CD
) },
184 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_PLUS_PWR_PCI
) },
185 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_2
) },
186 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_2C
) },
187 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_2I
) },
188 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_421
) },
189 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_21
) },
190 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_42
) },
191 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_4
) },
192 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_4I
) },
193 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_22I
) },
194 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_221C
) },
195 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_22C
) },
196 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_21C
) },
197 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_4S
) },
198 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_8
) },
199 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_8S
) },
200 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_416
) },
201 { USB_DEVICE(USB_VENDOR_ID_ION
, ION_DEVICE_ID_TI_EDGEPORT_416B
) },
205 MODULE_DEVICE_TABLE(usb
, id_table_combined
);
207 static struct usb_driver io_driver
= {
209 .probe
= usb_serial_probe
,
210 .disconnect
= usb_serial_disconnect
,
211 .id_table
= id_table_combined
,
216 static unsigned char OperationalMajorVersion
;
217 static unsigned char OperationalMinorVersion
;
218 static unsigned short OperationalBuildNumber
;
222 static int closing_wait
= EDGE_CLOSING_WAIT
;
223 static int ignore_cpu_rev
;
224 static int default_uart_mode
; /* RS232 */
226 static void edge_tty_recv(struct device
*dev
, struct tty_struct
*tty
,
227 unsigned char *data
, int length
);
229 static void stop_read(struct edgeport_port
*edge_port
);
230 static int restart_read(struct edgeport_port
*edge_port
);
232 static void edge_set_termios(struct tty_struct
*tty
,
233 struct usb_serial_port
*port
, struct ktermios
*old_termios
);
234 static void edge_send(struct tty_struct
*tty
);
236 /* sysfs attributes */
237 static int edge_create_sysfs_attrs(struct usb_serial_port
*port
);
238 static int edge_remove_sysfs_attrs(struct usb_serial_port
*port
);
241 static int ti_vread_sync(struct usb_device
*dev
, __u8 request
,
242 __u16 value
, __u16 index
, u8
*data
, int size
)
246 status
= usb_control_msg(dev
, usb_rcvctrlpipe(dev
, 0), request
,
247 (USB_TYPE_VENDOR
| USB_RECIP_DEVICE
| USB_DIR_IN
),
248 value
, index
, data
, size
, 1000);
251 if (status
!= size
) {
252 dbg("%s - wanted to write %d, but only wrote %d",
253 __func__
, size
, status
);
259 static int ti_vsend_sync(struct usb_device
*dev
, __u8 request
,
260 __u16 value
, __u16 index
, u8
*data
, int size
)
264 status
= usb_control_msg(dev
, usb_sndctrlpipe(dev
, 0), request
,
265 (USB_TYPE_VENDOR
| USB_RECIP_DEVICE
| USB_DIR_OUT
),
266 value
, index
, data
, size
, 1000);
269 if (status
!= size
) {
270 dbg("%s - wanted to write %d, but only wrote %d",
271 __func__
, size
, status
);
277 static int send_cmd(struct usb_device
*dev
, __u8 command
,
278 __u8 moduleid
, __u16 value
, u8
*data
,
281 return ti_vsend_sync(dev
, command
, value
, moduleid
, data
, size
);
284 /* clear tx/rx buffers and fifo in TI UMP */
285 static int purge_port(struct usb_serial_port
*port
, __u16 mask
)
287 int port_number
= port
->number
- port
->serial
->minor
;
289 dbg("%s - port %d, mask %x", __func__
, port_number
, mask
);
291 return send_cmd(port
->serial
->dev
,
293 (__u8
)(UMPM_UART1_PORT
+ port_number
),
300 * read_download_mem - Read edgeport memory from TI chip
301 * @dev: usb device pointer
302 * @start_address: Device CPU address at which to read
303 * @length: Length of above data
304 * @address_type: Can read both XDATA and I2C
305 * @buffer: pointer to input data buffer
307 static int read_download_mem(struct usb_device
*dev
, int start_address
,
308 int length
, __u8 address_type
, __u8
*buffer
)
312 __be16 be_start_address
;
314 dbg("%s - @ %x for %d", __func__
, start_address
, length
);
316 /* Read in blocks of 64 bytes
317 * (TI firmware can't handle more than 64 byte reads)
323 read_length
= (__u8
)length
;
325 if (read_length
> 1) {
326 dbg("%s - @ %x for %d", __func__
,
327 start_address
, read_length
);
329 be_start_address
= cpu_to_be16(start_address
);
330 status
= ti_vread_sync(dev
, UMPC_MEMORY_READ
,
332 (__force __u16
)be_start_address
,
333 buffer
, read_length
);
336 dbg("%s - ERROR %x", __func__
, status
);
341 usb_serial_debug_data(debug
, &dev
->dev
, __func__
,
342 read_length
, buffer
);
344 /* Update pointers/length */
345 start_address
+= read_length
;
346 buffer
+= read_length
;
347 length
-= read_length
;
353 static int read_ram(struct usb_device
*dev
, int start_address
,
354 int length
, __u8
*buffer
)
356 return read_download_mem(dev
, start_address
, length
,
357 DTK_ADDR_SPACE_XDATA
, buffer
);
360 /* Read edgeport memory to a given block */
361 static int read_boot_mem(struct edgeport_serial
*serial
,
362 int start_address
, int length
, __u8
*buffer
)
367 for (i
= 0; i
< length
; i
++) {
368 status
= ti_vread_sync(serial
->serial
->dev
,
369 UMPC_MEMORY_READ
, serial
->TI_I2C_Type
,
370 (__u16
)(start_address
+i
), &buffer
[i
], 0x01);
372 dbg("%s - ERROR %x", __func__
, status
);
377 dbg("%s - start_address = %x, length = %d",
378 __func__
, start_address
, length
);
379 usb_serial_debug_data(debug
, &serial
->serial
->dev
->dev
,
380 __func__
, length
, buffer
);
382 serial
->TiReadI2C
= 1;
387 /* Write given block to TI EPROM memory */
388 static int write_boot_mem(struct edgeport_serial
*serial
,
389 int start_address
, int length
, __u8
*buffer
)
395 /* Must do a read before write */
396 if (!serial
->TiReadI2C
) {
397 temp
= kmalloc(1, GFP_KERNEL
);
399 dev_err(&serial
->serial
->dev
->dev
,
400 "%s - out of memory\n", __func__
);
403 status
= read_boot_mem(serial
, 0, 1, temp
);
409 for (i
= 0; i
< length
; ++i
) {
410 status
= ti_vsend_sync(serial
->serial
->dev
,
411 UMPC_MEMORY_WRITE
, buffer
[i
],
412 (__u16
)(i
+ start_address
), NULL
, 0);
417 dbg("%s - start_sddr = %x, length = %d",
418 __func__
, start_address
, length
);
419 usb_serial_debug_data(debug
, &serial
->serial
->dev
->dev
,
420 __func__
, length
, buffer
);
426 /* Write edgeport I2C memory to TI chip */
427 static int write_i2c_mem(struct edgeport_serial
*serial
,
428 int start_address
, int length
, __u8 address_type
, __u8
*buffer
)
432 __be16 be_start_address
;
434 /* We can only send a maximum of 1 aligned byte page at a time */
436 /* calulate the number of bytes left in the first page */
437 write_length
= EPROM_PAGE_SIZE
-
438 (start_address
& (EPROM_PAGE_SIZE
- 1));
440 if (write_length
> length
)
441 write_length
= length
;
443 dbg("%s - BytesInFirstPage Addr = %x, length = %d",
444 __func__
, start_address
, write_length
);
445 usb_serial_debug_data(debug
, &serial
->serial
->dev
->dev
,
446 __func__
, write_length
, buffer
);
448 /* Write first page */
449 be_start_address
= cpu_to_be16(start_address
);
450 status
= ti_vsend_sync(serial
->serial
->dev
,
451 UMPC_MEMORY_WRITE
, (__u16
)address_type
,
452 (__force __u16
)be_start_address
,
453 buffer
, write_length
);
455 dbg("%s - ERROR %d", __func__
, status
);
459 length
-= write_length
;
460 start_address
+= write_length
;
461 buffer
+= write_length
;
463 /* We should be aligned now -- can write
464 max page size bytes at a time */
466 if (length
> EPROM_PAGE_SIZE
)
467 write_length
= EPROM_PAGE_SIZE
;
469 write_length
= length
;
471 dbg("%s - Page Write Addr = %x, length = %d",
472 __func__
, start_address
, write_length
);
473 usb_serial_debug_data(debug
, &serial
->serial
->dev
->dev
,
474 __func__
, write_length
, buffer
);
476 /* Write next page */
477 be_start_address
= cpu_to_be16(start_address
);
478 status
= ti_vsend_sync(serial
->serial
->dev
, UMPC_MEMORY_WRITE
,
480 (__force __u16
)be_start_address
,
481 buffer
, write_length
);
483 dev_err(&serial
->serial
->dev
->dev
, "%s - ERROR %d\n",
488 length
-= write_length
;
489 start_address
+= write_length
;
490 buffer
+= write_length
;
495 /* Examine the UMP DMA registers and LSR
497 * Check the MSBit of the X and Y DMA byte count registers.
498 * A zero in this bit indicates that the TX DMA buffers are empty
499 * then check the TX Empty bit in the UART.
501 static int tx_active(struct edgeport_port
*port
)
504 struct out_endpoint_desc_block
*oedb
;
508 oedb
= kmalloc(sizeof(*oedb
), GFP_KERNEL
);
510 dev_err(&port
->port
->dev
, "%s - out of memory\n", __func__
);
514 lsr
= kmalloc(1, GFP_KERNEL
); /* Sigh, that's right, just one byte,
515 as not all platforms can do DMA
521 /* Read the DMA Count Registers */
522 status
= read_ram(port
->port
->serial
->dev
, port
->dma_address
,
523 sizeof(*oedb
), (void *)oedb
);
525 goto exit_is_tx_active
;
527 dbg("%s - XByteCount 0x%X", __func__
, oedb
->XByteCount
);
530 status
= read_ram(port
->port
->serial
->dev
,
531 port
->uart_base
+ UMPMEM_OFFS_UART_LSR
, 1, lsr
);
534 goto exit_is_tx_active
;
535 dbg("%s - LSR = 0x%X", __func__
, *lsr
);
537 /* If either buffer has data or we are transmitting then return TRUE */
538 if ((oedb
->XByteCount
& 0x80) != 0)
541 if ((*lsr
& UMP_UART_LSR_TX_MASK
) == 0)
544 /* We return Not Active if we get any kind of error */
546 dbg("%s - return %d", __func__
, bytes_left
);
553 static void chase_port(struct edgeport_port
*port
, unsigned long timeout
,
557 struct tty_struct
*tty
= tty_port_tty_get(&port
->port
->port
);
562 timeout
= (HZ
* EDGE_CLOSING_WAIT
)/100;
564 /* wait for data to drain from the buffer */
565 spin_lock_irqsave(&port
->ep_lock
, flags
);
566 init_waitqueue_entry(&wait
, current
);
567 add_wait_queue(&tty
->write_wait
, &wait
);
569 set_current_state(TASK_INTERRUPTIBLE
);
570 if (kfifo_len(&port
->write_fifo
) == 0
571 || timeout
== 0 || signal_pending(current
)
572 || !usb_get_intfdata(port
->port
->serial
->interface
))
575 spin_unlock_irqrestore(&port
->ep_lock
, flags
);
576 timeout
= schedule_timeout(timeout
);
577 spin_lock_irqsave(&port
->ep_lock
, flags
);
579 set_current_state(TASK_RUNNING
);
580 remove_wait_queue(&tty
->write_wait
, &wait
);
582 kfifo_reset_out(&port
->write_fifo
);
583 spin_unlock_irqrestore(&port
->ep_lock
, flags
);
586 /* wait for data to drain from the device */
588 while ((long)(jiffies
- timeout
) < 0 && !signal_pending(current
)
589 && usb_get_intfdata(port
->port
->serial
->interface
)) {
590 /* not disconnected */
591 if (!tx_active(port
))
597 if (!usb_get_intfdata(port
->port
->serial
->interface
))
600 /* wait one more character time, based on baud rate */
601 /* (tx_active doesn't seem to wait for the last byte) */
602 baud_rate
= port
->baud_rate
;
605 msleep(max(1, DIV_ROUND_UP(10000, baud_rate
)));
608 static int choose_config(struct usb_device
*dev
)
611 * There may be multiple configurations on this device, in which case
612 * we would need to read and parse all of them to find out which one
613 * we want. However, we just support one config at this point,
614 * configuration # 1, which is Config Descriptor 0.
617 dbg("%s - Number of Interfaces = %d",
618 __func__
, dev
->config
->desc
.bNumInterfaces
);
619 dbg("%s - MAX Power = %d",
620 __func__
, dev
->config
->desc
.bMaxPower
* 2);
622 if (dev
->config
->desc
.bNumInterfaces
!= 1) {
623 dev_err(&dev
->dev
, "%s - bNumInterfaces is not 1, ERROR!\n",
631 static int read_rom(struct edgeport_serial
*serial
,
632 int start_address
, int length
, __u8
*buffer
)
636 if (serial
->product_info
.TiMode
== TI_MODE_DOWNLOAD
) {
637 status
= read_download_mem(serial
->serial
->dev
,
643 status
= read_boot_mem(serial
, start_address
, length
,
649 static int write_rom(struct edgeport_serial
*serial
, int start_address
,
650 int length
, __u8
*buffer
)
652 if (serial
->product_info
.TiMode
== TI_MODE_BOOT
)
653 return write_boot_mem(serial
, start_address
, length
,
656 if (serial
->product_info
.TiMode
== TI_MODE_DOWNLOAD
)
657 return write_i2c_mem(serial
, start_address
, length
,
658 serial
->TI_I2C_Type
, buffer
);
664 /* Read a descriptor header from I2C based on type */
665 static int get_descriptor_addr(struct edgeport_serial
*serial
,
666 int desc_type
, struct ti_i2c_desc
*rom_desc
)
671 /* Search for requested descriptor in I2C */
674 status
= read_rom(serial
,
676 sizeof(struct ti_i2c_desc
),
681 if (rom_desc
->Type
== desc_type
)
682 return start_address
;
684 start_address
= start_address
+ sizeof(struct ti_i2c_desc
)
687 } while ((start_address
< TI_MAX_I2C_SIZE
) && rom_desc
->Type
);
692 /* Validate descriptor checksum */
693 static int valid_csum(struct ti_i2c_desc
*rom_desc
, __u8
*buffer
)
698 for (i
= 0; i
< rom_desc
->Size
; i
++)
699 cs
= (__u8
)(cs
+ buffer
[i
]);
701 if (cs
!= rom_desc
->CheckSum
) {
702 dbg("%s - Mismatch %x - %x", __func__
, rom_desc
->CheckSum
, cs
);
708 /* Make sure that the I2C image is good */
709 static int check_i2c_image(struct edgeport_serial
*serial
)
711 struct device
*dev
= &serial
->serial
->dev
->dev
;
713 struct ti_i2c_desc
*rom_desc
;
714 int start_address
= 2;
718 rom_desc
= kmalloc(sizeof(*rom_desc
), GFP_KERNEL
);
720 dev_err(dev
, "%s - out of memory\n", __func__
);
723 buffer
= kmalloc(TI_MAX_I2C_SIZE
, GFP_KERNEL
);
725 dev_err(dev
, "%s - out of memory when allocating buffer\n",
731 /* Read the first byte (Signature0) must be 0x52 or 0x10 */
732 status
= read_rom(serial
, 0, 1, buffer
);
736 if (*buffer
!= UMP5152
&& *buffer
!= UMP3410
) {
737 dev_err(dev
, "%s - invalid buffer signature\n", __func__
);
743 /* Validate the I2C */
744 status
= read_rom(serial
,
746 sizeof(struct ti_i2c_desc
),
751 if ((start_address
+ sizeof(struct ti_i2c_desc
) +
752 rom_desc
->Size
) > TI_MAX_I2C_SIZE
) {
754 dbg("%s - structure too big, erroring out.", __func__
);
758 dbg("%s Type = 0x%x", __func__
, rom_desc
->Type
);
760 /* Skip type 2 record */
761 ttype
= rom_desc
->Type
& 0x0f;
762 if (ttype
!= I2C_DESC_TYPE_FIRMWARE_BASIC
763 && ttype
!= I2C_DESC_TYPE_FIRMWARE_AUTO
) {
764 /* Read the descriptor data */
765 status
= read_rom(serial
, start_address
+
766 sizeof(struct ti_i2c_desc
),
767 rom_desc
->Size
, buffer
);
771 status
= valid_csum(rom_desc
, buffer
);
775 start_address
= start_address
+ sizeof(struct ti_i2c_desc
) +
778 } while ((rom_desc
->Type
!= I2C_DESC_TYPE_ION
) &&
779 (start_address
< TI_MAX_I2C_SIZE
));
781 if ((rom_desc
->Type
!= I2C_DESC_TYPE_ION
) ||
782 (start_address
> TI_MAX_I2C_SIZE
))
791 static int get_manuf_info(struct edgeport_serial
*serial
, __u8
*buffer
)
795 struct ti_i2c_desc
*rom_desc
;
796 struct edge_ti_manuf_descriptor
*desc
;
798 rom_desc
= kmalloc(sizeof(*rom_desc
), GFP_KERNEL
);
800 dev_err(&serial
->serial
->dev
->dev
, "%s - out of memory\n",
804 start_address
= get_descriptor_addr(serial
, I2C_DESC_TYPE_ION
,
807 if (!start_address
) {
808 dbg("%s - Edge Descriptor not found in I2C", __func__
);
813 /* Read the descriptor data */
814 status
= read_rom(serial
, start_address
+sizeof(struct ti_i2c_desc
),
815 rom_desc
->Size
, buffer
);
819 status
= valid_csum(rom_desc
, buffer
);
821 desc
= (struct edge_ti_manuf_descriptor
*)buffer
;
822 dbg("%s - IonConfig 0x%x", __func__
, desc
->IonConfig
);
823 dbg("%s - Version %d", __func__
, desc
->Version
);
824 dbg("%s - Cpu/Board 0x%x", __func__
, desc
->CpuRev_BoardRev
);
825 dbg("%s - NumPorts %d", __func__
, desc
->NumPorts
);
826 dbg("%s - NumVirtualPorts %d", __func__
, desc
->NumVirtualPorts
);
827 dbg("%s - TotalPorts %d", __func__
, desc
->TotalPorts
);
834 /* Build firmware header used for firmware update */
835 static int build_i2c_fw_hdr(__u8
*header
, struct device
*dev
)
842 struct ti_i2c_desc
*i2c_header
;
843 struct ti_i2c_image_header
*img_header
;
844 struct ti_i2c_firmware_rec
*firmware_rec
;
845 const struct firmware
*fw
;
846 const char *fw_name
= "edgeport/down3.bin";
848 /* In order to update the I2C firmware we must change the type 2 record
849 * to type 0xF2. This will force the UMP to come up in Boot Mode.
850 * Then while in boot mode, the driver will download the latest
851 * firmware (padded to 15.5k) into the UMP ram. And finally when the
852 * device comes back up in download mode the driver will cause the new
853 * firmware to be copied from the UMP Ram to I2C and the firmware will
854 * update the record type from 0xf2 to 0x02.
857 /* Allocate a 15.5k buffer + 2 bytes for version number
858 * (Firmware Record) */
859 buffer_size
= (((1024 * 16) - 512 ) +
860 sizeof(struct ti_i2c_firmware_rec
));
862 buffer
= kmalloc(buffer_size
, GFP_KERNEL
);
864 dev_err(dev
, "%s - out of memory\n", __func__
);
868 // Set entire image of 0xffs
869 memset(buffer
, 0xff, buffer_size
);
871 err
= request_firmware(&fw
, fw_name
, dev
);
873 printk(KERN_ERR
"Failed to load image \"%s\" err %d\n",
879 /* Save Download Version Number */
880 OperationalMajorVersion
= fw
->data
[0];
881 OperationalMinorVersion
= fw
->data
[1];
882 OperationalBuildNumber
= fw
->data
[2] | (fw
->data
[3] << 8);
884 /* Copy version number into firmware record */
885 firmware_rec
= (struct ti_i2c_firmware_rec
*)buffer
;
887 firmware_rec
->Ver_Major
= OperationalMajorVersion
;
888 firmware_rec
->Ver_Minor
= OperationalMinorVersion
;
890 /* Pointer to fw_down memory image */
891 img_header
= (struct ti_i2c_image_header
*)&fw
->data
[4];
893 memcpy(buffer
+ sizeof(struct ti_i2c_firmware_rec
),
894 &fw
->data
[4 + sizeof(struct ti_i2c_image_header
)],
895 le16_to_cpu(img_header
->Length
));
897 release_firmware(fw
);
899 for (i
=0; i
< buffer_size
; i
++) {
900 cs
= (__u8
)(cs
+ buffer
[i
]);
905 /* Build new header */
906 i2c_header
= (struct ti_i2c_desc
*)header
;
907 firmware_rec
= (struct ti_i2c_firmware_rec
*)i2c_header
->Data
;
909 i2c_header
->Type
= I2C_DESC_TYPE_FIRMWARE_BLANK
;
910 i2c_header
->Size
= (__u16
)buffer_size
;
911 i2c_header
->CheckSum
= cs
;
912 firmware_rec
->Ver_Major
= OperationalMajorVersion
;
913 firmware_rec
->Ver_Minor
= OperationalMinorVersion
;
918 /* Try to figure out what type of I2c we have */
919 static int i2c_type_bootmode(struct edgeport_serial
*serial
)
924 data
= kmalloc(1, GFP_KERNEL
);
926 dev_err(&serial
->serial
->dev
->dev
,
927 "%s - out of memory\n", __func__
);
931 /* Try to read type 2 */
932 status
= ti_vread_sync(serial
->serial
->dev
, UMPC_MEMORY_READ
,
933 DTK_ADDR_SPACE_I2C_TYPE_II
, 0, data
, 0x01);
935 dbg("%s - read 2 status error = %d", __func__
, status
);
937 dbg("%s - read 2 data = 0x%x", __func__
, *data
);
938 if ((!status
) && (*data
== UMP5152
|| *data
== UMP3410
)) {
939 dbg("%s - ROM_TYPE_II", __func__
);
940 serial
->TI_I2C_Type
= DTK_ADDR_SPACE_I2C_TYPE_II
;
944 /* Try to read type 3 */
945 status
= ti_vread_sync(serial
->serial
->dev
, UMPC_MEMORY_READ
,
946 DTK_ADDR_SPACE_I2C_TYPE_III
, 0, data
, 0x01);
948 dbg("%s - read 3 status error = %d", __func__
, status
);
950 dbg("%s - read 2 data = 0x%x", __func__
, *data
);
951 if ((!status
) && (*data
== UMP5152
|| *data
== UMP3410
)) {
952 dbg("%s - ROM_TYPE_III", __func__
);
953 serial
->TI_I2C_Type
= DTK_ADDR_SPACE_I2C_TYPE_III
;
957 dbg("%s - Unknown", __func__
);
958 serial
->TI_I2C_Type
= DTK_ADDR_SPACE_I2C_TYPE_II
;
965 static int bulk_xfer(struct usb_serial
*serial
, void *buffer
,
966 int length
, int *num_sent
)
970 status
= usb_bulk_msg(serial
->dev
,
971 usb_sndbulkpipe(serial
->dev
,
972 serial
->port
[0]->bulk_out_endpointAddress
),
973 buffer
, length
, num_sent
, 1000);
977 /* Download given firmware image to the device (IN BOOT MODE) */
978 static int download_code(struct edgeport_serial
*serial
, __u8
*image
,
986 /* Transfer firmware image */
987 for (pos
= 0; pos
< image_length
; ) {
988 /* Read the next buffer from file */
989 transfer
= image_length
- pos
;
990 if (transfer
> EDGE_FW_BULK_MAX_PACKET_SIZE
)
991 transfer
= EDGE_FW_BULK_MAX_PACKET_SIZE
;
994 status
= bulk_xfer(serial
->serial
, &image
[pos
],
998 /* Advance buffer pointer */
1006 static int config_boot_dev(struct usb_device
*dev
)
1011 static int ti_cpu_rev(struct edge_ti_manuf_descriptor
*desc
)
1013 return TI_GET_CPU_REVISION(desc
->CpuRev_BoardRev
);
1017 * DownloadTIFirmware - Download run-time operating firmware to the TI5052
1019 * This routine downloads the main operating code into the TI5052, using the
1020 * boot code already burned into E2PROM or ROM.
1022 static int download_fw(struct edgeport_serial
*serial
)
1024 struct device
*dev
= &serial
->serial
->dev
->dev
;
1027 struct edge_ti_manuf_descriptor
*ti_manuf_desc
;
1028 struct usb_interface_descriptor
*interface
;
1029 int download_cur_ver
;
1030 int download_new_ver
;
1032 /* This routine is entered by both the BOOT mode and the Download mode
1033 * We can determine which code is running by the reading the config
1034 * descriptor and if we have only one bulk pipe it is in boot mode
1036 serial
->product_info
.hardware_type
= HARDWARE_TYPE_TIUMP
;
1038 /* Default to type 2 i2c */
1039 serial
->TI_I2C_Type
= DTK_ADDR_SPACE_I2C_TYPE_II
;
1041 status
= choose_config(serial
->serial
->dev
);
1045 interface
= &serial
->serial
->interface
->cur_altsetting
->desc
;
1047 dev_err(dev
, "%s - no interface set, error!\n", __func__
);
1052 * Setup initial mode -- the default mode 0 is TI_MODE_CONFIGURING
1053 * if we have more than one endpoint we are definitely in download
1056 if (interface
->bNumEndpoints
> 1)
1057 serial
->product_info
.TiMode
= TI_MODE_DOWNLOAD
;
1059 /* Otherwise we will remain in configuring mode */
1060 serial
->product_info
.TiMode
= TI_MODE_CONFIGURING
;
1062 /********************************************************************/
1064 /********************************************************************/
1065 if (serial
->product_info
.TiMode
== TI_MODE_DOWNLOAD
) {
1066 struct ti_i2c_desc
*rom_desc
;
1068 dbg("%s - RUNNING IN DOWNLOAD MODE", __func__
);
1070 status
= check_i2c_image(serial
);
1072 dbg("%s - DOWNLOAD MODE -- BAD I2C", __func__
);
1076 /* Validate Hardware version number
1077 * Read Manufacturing Descriptor from TI Based Edgeport
1079 ti_manuf_desc
= kmalloc(sizeof(*ti_manuf_desc
), GFP_KERNEL
);
1080 if (!ti_manuf_desc
) {
1081 dev_err(dev
, "%s - out of memory.\n", __func__
);
1084 status
= get_manuf_info(serial
, (__u8
*)ti_manuf_desc
);
1086 kfree(ti_manuf_desc
);
1090 /* Check version number of ION descriptor */
1091 if (!ignore_cpu_rev
&& ti_cpu_rev(ti_manuf_desc
) < 2) {
1092 dbg("%s - Wrong CPU Rev %d (Must be 2)",
1093 __func__
, ti_cpu_rev(ti_manuf_desc
));
1094 kfree(ti_manuf_desc
);
1098 rom_desc
= kmalloc(sizeof(*rom_desc
), GFP_KERNEL
);
1100 dev_err(dev
, "%s - out of memory.\n", __func__
);
1101 kfree(ti_manuf_desc
);
1105 /* Search for type 2 record (firmware record) */
1106 start_address
= get_descriptor_addr(serial
,
1107 I2C_DESC_TYPE_FIRMWARE_BASIC
, rom_desc
);
1108 if (start_address
!= 0) {
1109 struct ti_i2c_firmware_rec
*firmware_version
;
1112 dbg("%s - Found Type FIRMWARE (Type 2) record",
1115 firmware_version
= kmalloc(sizeof(*firmware_version
),
1117 if (!firmware_version
) {
1118 dev_err(dev
, "%s - out of memory.\n", __func__
);
1120 kfree(ti_manuf_desc
);
1124 /* Validate version number
1125 * Read the descriptor data
1127 status
= read_rom(serial
, start_address
+
1128 sizeof(struct ti_i2c_desc
),
1129 sizeof(struct ti_i2c_firmware_rec
),
1130 (__u8
*)firmware_version
);
1132 kfree(firmware_version
);
1134 kfree(ti_manuf_desc
);
1138 /* Check version number of download with current
1140 download_cur_ver
= (firmware_version
->Ver_Major
<< 8) +
1141 (firmware_version
->Ver_Minor
);
1142 download_new_ver
= (OperationalMajorVersion
<< 8) +
1143 (OperationalMinorVersion
);
1145 dbg("%s - >> FW Versions Device %d.%d Driver %d.%d",
1147 firmware_version
->Ver_Major
,
1148 firmware_version
->Ver_Minor
,
1149 OperationalMajorVersion
,
1150 OperationalMinorVersion
);
1152 /* Check if we have an old version in the I2C and
1153 update if necessary */
1154 if (download_cur_ver
< download_new_ver
) {
1155 dbg("%s - Update I2C dld from %d.%d to %d.%d",
1157 firmware_version
->Ver_Major
,
1158 firmware_version
->Ver_Minor
,
1159 OperationalMajorVersion
,
1160 OperationalMinorVersion
);
1162 record
= kmalloc(1, GFP_KERNEL
);
1164 dev_err(dev
, "%s - out of memory.\n",
1166 kfree(firmware_version
);
1168 kfree(ti_manuf_desc
);
1171 /* In order to update the I2C firmware we must
1172 * change the type 2 record to type 0xF2. This
1173 * will force the UMP to come up in Boot Mode.
1174 * Then while in boot mode, the driver will
1175 * download the latest firmware (padded to
1176 * 15.5k) into the UMP ram. Finally when the
1177 * device comes back up in download mode the
1178 * driver will cause the new firmware to be
1179 * copied from the UMP Ram to I2C and the
1180 * firmware will update the record type from
1183 *record
= I2C_DESC_TYPE_FIRMWARE_BLANK
;
1185 /* Change the I2C Firmware record type to
1186 0xf2 to trigger an update */
1187 status
= write_rom(serial
, start_address
,
1188 sizeof(*record
), record
);
1191 kfree(firmware_version
);
1193 kfree(ti_manuf_desc
);
1197 /* verify the write -- must do this in order
1198 * for write to complete before we do the
1201 status
= read_rom(serial
,
1207 kfree(firmware_version
);
1209 kfree(ti_manuf_desc
);
1213 if (*record
!= I2C_DESC_TYPE_FIRMWARE_BLANK
) {
1215 "%s - error resetting device\n",
1218 kfree(firmware_version
);
1220 kfree(ti_manuf_desc
);
1224 dbg("%s - HARDWARE RESET", __func__
);
1226 /* Reset UMP -- Back to BOOT MODE */
1227 status
= ti_vsend_sync(serial
->serial
->dev
,
1228 UMPC_HARDWARE_RESET
,
1231 dbg("%s - HARDWARE RESET return %d",
1234 /* return an error on purpose. */
1236 kfree(firmware_version
);
1238 kfree(ti_manuf_desc
);
1241 kfree(firmware_version
);
1243 /* Search for type 0xF2 record (firmware blank record) */
1244 else if ((start_address
= get_descriptor_addr(serial
, I2C_DESC_TYPE_FIRMWARE_BLANK
, rom_desc
)) != 0) {
1245 #define HEADER_SIZE (sizeof(struct ti_i2c_desc) + \
1246 sizeof(struct ti_i2c_firmware_rec))
1250 header
= kmalloc(HEADER_SIZE
, GFP_KERNEL
);
1252 dev_err(dev
, "%s - out of memory.\n", __func__
);
1254 kfree(ti_manuf_desc
);
1258 vheader
= kmalloc(HEADER_SIZE
, GFP_KERNEL
);
1260 dev_err(dev
, "%s - out of memory.\n", __func__
);
1263 kfree(ti_manuf_desc
);
1267 dbg("%s - Found Type BLANK FIRMWARE (Type F2) record",
1271 * In order to update the I2C firmware we must change
1272 * the type 2 record to type 0xF2. This will force the
1273 * UMP to come up in Boot Mode. Then while in boot
1274 * mode, the driver will download the latest firmware
1275 * (padded to 15.5k) into the UMP ram. Finally when the
1276 * device comes back up in download mode the driver
1277 * will cause the new firmware to be copied from the
1278 * UMP Ram to I2C and the firmware will update the
1279 * record type from 0xf2 to 0x02.
1281 status
= build_i2c_fw_hdr(header
, dev
);
1286 kfree(ti_manuf_desc
);
1290 /* Update I2C with type 0xf2 record with correct
1291 size and checksum */
1292 status
= write_rom(serial
,
1300 kfree(ti_manuf_desc
);
1304 /* verify the write -- must do this in order for
1305 write to complete before we do the hardware reset */
1306 status
= read_rom(serial
, start_address
,
1307 HEADER_SIZE
, vheader
);
1310 dbg("%s - can't read header back", __func__
);
1314 kfree(ti_manuf_desc
);
1317 if (memcmp(vheader
, header
, HEADER_SIZE
)) {
1318 dbg("%s - write download record failed",
1323 kfree(ti_manuf_desc
);
1330 dbg("%s - Start firmware update", __func__
);
1332 /* Tell firmware to copy download image into I2C */
1333 status
= ti_vsend_sync(serial
->serial
->dev
,
1334 UMPC_COPY_DNLD_TO_I2C
, 0, 0, NULL
, 0);
1336 dbg("%s - Update complete 0x%x", __func__
, status
);
1339 "%s - UMPC_COPY_DNLD_TO_I2C failed\n",
1342 kfree(ti_manuf_desc
);
1347 // The device is running the download code
1349 kfree(ti_manuf_desc
);
1353 /********************************************************************/
1355 /********************************************************************/
1356 dbg("%s - RUNNING IN BOOT MODE", __func__
);
1358 /* Configure the TI device so we can use the BULK pipes for download */
1359 status
= config_boot_dev(serial
->serial
->dev
);
1363 if (le16_to_cpu(serial
->serial
->dev
->descriptor
.idVendor
)
1364 != USB_VENDOR_ID_ION
) {
1365 dbg("%s - VID = 0x%x", __func__
,
1366 le16_to_cpu(serial
->serial
->dev
->descriptor
.idVendor
));
1367 serial
->TI_I2C_Type
= DTK_ADDR_SPACE_I2C_TYPE_II
;
1368 goto stayinbootmode
;
1371 /* We have an ION device (I2c Must be programmed)
1372 Determine I2C image type */
1373 if (i2c_type_bootmode(serial
))
1374 goto stayinbootmode
;
1376 /* Check for ION Vendor ID and that the I2C is valid */
1377 if (!check_i2c_image(serial
)) {
1378 struct ti_i2c_image_header
*header
;
1384 const struct firmware
*fw
;
1385 const char *fw_name
= "edgeport/down3.bin";
1387 /* Validate Hardware version number
1388 * Read Manufacturing Descriptor from TI Based Edgeport
1390 ti_manuf_desc
= kmalloc(sizeof(*ti_manuf_desc
), GFP_KERNEL
);
1391 if (!ti_manuf_desc
) {
1392 dev_err(dev
, "%s - out of memory.\n", __func__
);
1395 status
= get_manuf_info(serial
, (__u8
*)ti_manuf_desc
);
1397 kfree(ti_manuf_desc
);
1398 goto stayinbootmode
;
1401 /* Check for version 2 */
1402 if (!ignore_cpu_rev
&& ti_cpu_rev(ti_manuf_desc
) < 2) {
1403 dbg("%s - Wrong CPU Rev %d (Must be 2)",
1404 __func__
, ti_cpu_rev(ti_manuf_desc
));
1405 kfree(ti_manuf_desc
);
1406 goto stayinbootmode
;
1409 kfree(ti_manuf_desc
);
1412 * In order to update the I2C firmware we must change the type
1413 * 2 record to type 0xF2. This will force the UMP to come up
1414 * in Boot Mode. Then while in boot mode, the driver will
1415 * download the latest firmware (padded to 15.5k) into the
1416 * UMP ram. Finally when the device comes back up in download
1417 * mode the driver will cause the new firmware to be copied
1418 * from the UMP Ram to I2C and the firmware will update the
1419 * record type from 0xf2 to 0x02.
1421 * Do we really have to copy the whole firmware image,
1422 * or could we do this in place!
1425 /* Allocate a 15.5k buffer + 3 byte header */
1426 buffer_size
= (((1024 * 16) - 512) +
1427 sizeof(struct ti_i2c_image_header
));
1428 buffer
= kmalloc(buffer_size
, GFP_KERNEL
);
1430 dev_err(dev
, "%s - out of memory\n", __func__
);
1434 /* Initialize the buffer to 0xff (pad the buffer) */
1435 memset(buffer
, 0xff, buffer_size
);
1437 err
= request_firmware(&fw
, fw_name
, dev
);
1439 printk(KERN_ERR
"Failed to load image \"%s\" err %d\n",
1444 memcpy(buffer
, &fw
->data
[4], fw
->size
- 4);
1445 release_firmware(fw
);
1447 for (i
= sizeof(struct ti_i2c_image_header
);
1448 i
< buffer_size
; i
++) {
1449 cs
= (__u8
)(cs
+ buffer
[i
]);
1452 header
= (struct ti_i2c_image_header
*)buffer
;
1454 /* update length and checksum after padding */
1455 header
->Length
= cpu_to_le16((__u16
)(buffer_size
-
1456 sizeof(struct ti_i2c_image_header
)));
1457 header
->CheckSum
= cs
;
1459 /* Download the operational code */
1460 dbg("%s - Downloading operational code image (TI UMP)",
1462 status
= download_code(serial
, buffer
, buffer_size
);
1467 dbg("%s - Error downloading operational code image",
1472 /* Device will reboot */
1473 serial
->product_info
.TiMode
= TI_MODE_TRANSITIONING
;
1475 dbg("%s - Download successful -- Device rebooting...",
1478 /* return an error on purpose */
1483 /* Eprom is invalid or blank stay in boot mode */
1484 dbg("%s - STAYING IN BOOT MODE", __func__
);
1485 serial
->product_info
.TiMode
= TI_MODE_BOOT
;
1491 static int ti_do_config(struct edgeport_port
*port
, int feature
, int on
)
1493 int port_number
= port
->port
->number
- port
->port
->serial
->minor
;
1494 on
= !!on
; /* 1 or 0 not bitmask */
1495 return send_cmd(port
->port
->serial
->dev
,
1496 feature
, (__u8
)(UMPM_UART1_PORT
+ port_number
),
1501 static int restore_mcr(struct edgeport_port
*port
, __u8 mcr
)
1505 dbg("%s - %x", __func__
, mcr
);
1507 status
= ti_do_config(port
, UMPC_SET_CLR_DTR
, mcr
& MCR_DTR
);
1510 status
= ti_do_config(port
, UMPC_SET_CLR_RTS
, mcr
& MCR_RTS
);
1513 return ti_do_config(port
, UMPC_SET_CLR_LOOPBACK
, mcr
& MCR_LOOPBACK
);
1516 /* Convert TI LSR to standard UART flags */
1517 static __u8
map_line_status(__u8 ti_lsr
)
1521 #define MAP_FLAG(flagUmp, flagUart) \
1522 if (ti_lsr & flagUmp) \
1525 MAP_FLAG(UMP_UART_LSR_OV_MASK
, LSR_OVER_ERR
) /* overrun */
1526 MAP_FLAG(UMP_UART_LSR_PE_MASK
, LSR_PAR_ERR
) /* parity error */
1527 MAP_FLAG(UMP_UART_LSR_FE_MASK
, LSR_FRM_ERR
) /* framing error */
1528 MAP_FLAG(UMP_UART_LSR_BR_MASK
, LSR_BREAK
) /* break detected */
1529 MAP_FLAG(UMP_UART_LSR_RX_MASK
, LSR_RX_AVAIL
) /* rx data available */
1530 MAP_FLAG(UMP_UART_LSR_TX_MASK
, LSR_TX_EMPTY
) /* tx hold reg empty */
1537 static void handle_new_msr(struct edgeport_port
*edge_port
, __u8 msr
)
1539 struct async_icount
*icount
;
1540 struct tty_struct
*tty
;
1542 dbg("%s - %02x", __func__
, msr
);
1544 if (msr
& (EDGEPORT_MSR_DELTA_CTS
| EDGEPORT_MSR_DELTA_DSR
|
1545 EDGEPORT_MSR_DELTA_RI
| EDGEPORT_MSR_DELTA_CD
)) {
1546 icount
= &edge_port
->icount
;
1548 /* update input line counters */
1549 if (msr
& EDGEPORT_MSR_DELTA_CTS
)
1551 if (msr
& EDGEPORT_MSR_DELTA_DSR
)
1553 if (msr
& EDGEPORT_MSR_DELTA_CD
)
1555 if (msr
& EDGEPORT_MSR_DELTA_RI
)
1557 wake_up_interruptible(&edge_port
->delta_msr_wait
);
1560 /* Save the new modem status */
1561 edge_port
->shadow_msr
= msr
& 0xf0;
1563 tty
= tty_port_tty_get(&edge_port
->port
->port
);
1564 /* handle CTS flow control */
1565 if (tty
&& C_CRTSCTS(tty
)) {
1566 if (msr
& EDGEPORT_MSR_CTS
) {
1567 tty
->hw_stopped
= 0;
1570 tty
->hw_stopped
= 1;
1578 static void handle_new_lsr(struct edgeport_port
*edge_port
, int lsr_data
,
1579 __u8 lsr
, __u8 data
)
1581 struct async_icount
*icount
;
1582 __u8 new_lsr
= (__u8
)(lsr
& (__u8
)(LSR_OVER_ERR
| LSR_PAR_ERR
|
1583 LSR_FRM_ERR
| LSR_BREAK
));
1584 struct tty_struct
*tty
;
1586 dbg("%s - %02x", __func__
, new_lsr
);
1588 edge_port
->shadow_lsr
= lsr
;
1590 if (new_lsr
& LSR_BREAK
)
1592 * Parity and Framing errors only count if they
1593 * occur exclusive of a break being received.
1595 new_lsr
&= (__u8
)(LSR_OVER_ERR
| LSR_BREAK
);
1597 /* Place LSR data byte into Rx buffer */
1599 tty
= tty_port_tty_get(&edge_port
->port
->port
);
1601 edge_tty_recv(&edge_port
->port
->dev
, tty
, &data
, 1);
1606 /* update input line counters */
1607 icount
= &edge_port
->icount
;
1608 if (new_lsr
& LSR_BREAK
)
1610 if (new_lsr
& LSR_OVER_ERR
)
1612 if (new_lsr
& LSR_PAR_ERR
)
1614 if (new_lsr
& LSR_FRM_ERR
)
1619 static void edge_interrupt_callback(struct urb
*urb
)
1621 struct edgeport_serial
*edge_serial
= urb
->context
;
1622 struct usb_serial_port
*port
;
1623 struct edgeport_port
*edge_port
;
1624 unsigned char *data
= urb
->transfer_buffer
;
1625 int length
= urb
->actual_length
;
1631 int status
= urb
->status
;
1633 dbg("%s", __func__
);
1642 /* this urb is terminated, clean up */
1643 dbg("%s - urb shutting down with status: %d",
1647 dev_err(&urb
->dev
->dev
, "%s - nonzero urb status received: "
1648 "%d\n", __func__
, status
);
1653 dbg("%s - no data in urb", __func__
);
1657 usb_serial_debug_data(debug
, &edge_serial
->serial
->dev
->dev
,
1658 __func__
, length
, data
);
1661 dbg("%s - expecting packet of size 2, got %d",
1666 port_number
= TIUMP_GET_PORT_FROM_CODE(data
[0]);
1667 function
= TIUMP_GET_FUNC_FROM_CODE(data
[0]);
1668 dbg("%s - port_number %d, function %d, info 0x%x",
1669 __func__
, port_number
, function
, data
[1]);
1670 port
= edge_serial
->serial
->port
[port_number
];
1671 edge_port
= usb_get_serial_port_data(port
);
1673 dbg("%s - edge_port not found", __func__
);
1677 case TIUMP_INTERRUPT_CODE_LSR
:
1678 lsr
= map_line_status(data
[1]);
1679 if (lsr
& UMP_UART_LSR_DATA_MASK
) {
1680 /* Save the LSR event for bulk read
1681 completion routine */
1682 dbg("%s - LSR Event Port %u LSR Status = %02x",
1683 __func__
, port_number
, lsr
);
1684 edge_port
->lsr_event
= 1;
1685 edge_port
->lsr_mask
= lsr
;
1687 dbg("%s - ===== Port %d LSR Status = %02x ======",
1688 __func__
, port_number
, lsr
);
1689 handle_new_lsr(edge_port
, 0, lsr
, 0);
1693 case TIUMP_INTERRUPT_CODE_MSR
: /* MSR */
1694 /* Copy MSR from UMP */
1696 dbg("%s - ===== Port %u MSR Status = %02x ======",
1697 __func__
, port_number
, msr
);
1698 handle_new_msr(edge_port
, msr
);
1702 dev_err(&urb
->dev
->dev
,
1703 "%s - Unknown Interrupt code from UMP %x\n",
1710 retval
= usb_submit_urb(urb
, GFP_ATOMIC
);
1712 dev_err(&urb
->dev
->dev
,
1713 "%s - usb_submit_urb failed with result %d\n",
1717 static void edge_bulk_in_callback(struct urb
*urb
)
1719 struct edgeport_port
*edge_port
= urb
->context
;
1720 unsigned char *data
= urb
->transfer_buffer
;
1721 struct tty_struct
*tty
;
1724 int status
= urb
->status
;
1726 dbg("%s", __func__
);
1735 /* this urb is terminated, clean up */
1736 dbg("%s - urb shutting down with status: %d",
1740 dev_err(&urb
->dev
->dev
,
1741 "%s - nonzero read bulk status received: %d\n",
1745 if (status
== -EPIPE
)
1749 dev_err(&urb
->dev
->dev
, "%s - stopping read!\n", __func__
);
1753 port_number
= edge_port
->port
->number
- edge_port
->port
->serial
->minor
;
1755 if (edge_port
->lsr_event
) {
1756 edge_port
->lsr_event
= 0;
1757 dbg("%s ===== Port %u LSR Status = %02x, Data = %02x ======",
1758 __func__
, port_number
, edge_port
->lsr_mask
, *data
);
1759 handle_new_lsr(edge_port
, 1, edge_port
->lsr_mask
, *data
);
1760 /* Adjust buffer length/pointer */
1761 --urb
->actual_length
;
1765 tty
= tty_port_tty_get(&edge_port
->port
->port
);
1766 if (tty
&& urb
->actual_length
) {
1767 usb_serial_debug_data(debug
, &edge_port
->port
->dev
,
1768 __func__
, urb
->actual_length
, data
);
1769 if (edge_port
->close_pending
)
1770 dbg("%s - close pending, dropping data on the floor",
1773 edge_tty_recv(&edge_port
->port
->dev
, tty
, data
,
1774 urb
->actual_length
);
1775 edge_port
->icount
.rx
+= urb
->actual_length
;
1780 /* continue read unless stopped */
1781 spin_lock(&edge_port
->ep_lock
);
1782 if (edge_port
->ep_read_urb_state
== EDGE_READ_URB_RUNNING
) {
1783 urb
->dev
= edge_port
->port
->serial
->dev
;
1784 retval
= usb_submit_urb(urb
, GFP_ATOMIC
);
1785 } else if (edge_port
->ep_read_urb_state
== EDGE_READ_URB_STOPPING
) {
1786 edge_port
->ep_read_urb_state
= EDGE_READ_URB_STOPPED
;
1788 spin_unlock(&edge_port
->ep_lock
);
1790 dev_err(&urb
->dev
->dev
,
1791 "%s - usb_submit_urb failed with result %d\n",
1795 static void edge_tty_recv(struct device
*dev
, struct tty_struct
*tty
,
1796 unsigned char *data
, int length
)
1800 queued
= tty_insert_flip_string(tty
, data
, length
);
1801 if (queued
< length
)
1802 dev_err(dev
, "%s - dropping data, %d bytes lost\n",
1803 __func__
, length
- queued
);
1804 tty_flip_buffer_push(tty
);
1807 static void edge_bulk_out_callback(struct urb
*urb
)
1809 struct usb_serial_port
*port
= urb
->context
;
1810 struct edgeport_port
*edge_port
= usb_get_serial_port_data(port
);
1811 int status
= urb
->status
;
1812 struct tty_struct
*tty
;
1814 dbg("%s - port %d", __func__
, port
->number
);
1816 edge_port
->ep_write_urb_in_use
= 0;
1825 /* this urb is terminated, clean up */
1826 dbg("%s - urb shutting down with status: %d",
1830 dev_err(&urb
->dev
->dev
, "%s - nonzero write bulk status "
1831 "received: %d\n", __func__
, status
);
1834 /* send any buffered data */
1835 tty
= tty_port_tty_get(&port
->port
);
1840 static int edge_open(struct tty_struct
*tty
, struct usb_serial_port
*port
)
1842 struct edgeport_port
*edge_port
= usb_get_serial_port_data(port
);
1843 struct edgeport_serial
*edge_serial
;
1844 struct usb_device
*dev
;
1849 u8 transaction_timeout
;
1851 dbg("%s - port %d", __func__
, port
->number
);
1853 if (edge_port
== NULL
)
1856 port_number
= port
->number
- port
->serial
->minor
;
1857 switch (port_number
) {
1859 edge_port
->uart_base
= UMPMEM_BASE_UART1
;
1860 edge_port
->dma_address
= UMPD_OEDB1_ADDRESS
;
1863 edge_port
->uart_base
= UMPMEM_BASE_UART2
;
1864 edge_port
->dma_address
= UMPD_OEDB2_ADDRESS
;
1867 dev_err(&port
->dev
, "Unknown port number!!!\n");
1871 dbg("%s - port_number = %d, uart_base = %04x, dma_address = %04x",
1872 __func__
, port_number
, edge_port
->uart_base
,
1873 edge_port
->dma_address
);
1875 dev
= port
->serial
->dev
;
1877 memset(&(edge_port
->icount
), 0x00, sizeof(edge_port
->icount
));
1878 init_waitqueue_head(&edge_port
->delta_msr_wait
);
1880 /* turn off loopback */
1881 status
= ti_do_config(edge_port
, UMPC_SET_CLR_LOOPBACK
, 0);
1884 "%s - cannot send clear loopback command, %d\n",
1889 /* set up the port settings */
1891 edge_set_termios(tty
, port
, tty
->termios
);
1893 /* open up the port */
1895 /* milliseconds to timeout for DMA transfer */
1896 transaction_timeout
= 2;
1898 edge_port
->ump_read_timeout
=
1899 max(20, ((transaction_timeout
* 3) / 2));
1901 /* milliseconds to timeout for DMA transfer */
1902 open_settings
= (u8
)(UMP_DMA_MODE_CONTINOUS
|
1903 UMP_PIPE_TRANS_TIMEOUT_ENA
|
1904 (transaction_timeout
<< 2));
1906 dbg("%s - Sending UMPC_OPEN_PORT", __func__
);
1908 /* Tell TI to open and start the port */
1909 status
= send_cmd(dev
, UMPC_OPEN_PORT
,
1910 (u8
)(UMPM_UART1_PORT
+ port_number
), open_settings
, NULL
, 0);
1912 dev_err(&port
->dev
, "%s - cannot send open command, %d\n",
1917 /* Start the DMA? */
1918 status
= send_cmd(dev
, UMPC_START_PORT
,
1919 (u8
)(UMPM_UART1_PORT
+ port_number
), 0, NULL
, 0);
1921 dev_err(&port
->dev
, "%s - cannot send start DMA command, %d\n",
1926 /* Clear TX and RX buffers in UMP */
1927 status
= purge_port(port
, UMP_PORT_DIR_OUT
| UMP_PORT_DIR_IN
);
1930 "%s - cannot send clear buffers command, %d\n",
1935 /* Read Initial MSR */
1936 status
= ti_vread_sync(dev
, UMPC_READ_MSR
, 0,
1937 (__u16
)(UMPM_UART1_PORT
+ port_number
),
1938 &edge_port
->shadow_msr
, 1);
1940 dev_err(&port
->dev
, "%s - cannot send read MSR command, %d\n",
1945 dbg("ShadowMSR 0x%X", edge_port
->shadow_msr
);
1947 /* Set Initial MCR */
1948 edge_port
->shadow_mcr
= MCR_RTS
| MCR_DTR
;
1949 dbg("ShadowMCR 0x%X", edge_port
->shadow_mcr
);
1951 edge_serial
= edge_port
->edge_serial
;
1952 if (mutex_lock_interruptible(&edge_serial
->es_lock
))
1953 return -ERESTARTSYS
;
1954 if (edge_serial
->num_ports_open
== 0) {
1955 /* we are the first port to open, post the interrupt urb */
1956 urb
= edge_serial
->serial
->port
[0]->interrupt_in_urb
;
1959 "%s - no interrupt urb present, exiting\n",
1962 goto release_es_lock
;
1964 urb
->complete
= edge_interrupt_callback
;
1965 urb
->context
= edge_serial
;
1967 status
= usb_submit_urb(urb
, GFP_KERNEL
);
1970 "%s - usb_submit_urb failed with value %d\n",
1972 goto release_es_lock
;
1977 * reset the data toggle on the bulk endpoints to work around bug in
1978 * host controllers where things get out of sync some times
1980 usb_clear_halt(dev
, port
->write_urb
->pipe
);
1981 usb_clear_halt(dev
, port
->read_urb
->pipe
);
1983 /* start up our bulk read urb */
1984 urb
= port
->read_urb
;
1986 dev_err(&port
->dev
, "%s - no read urb present, exiting\n",
1989 goto unlink_int_urb
;
1991 edge_port
->ep_read_urb_state
= EDGE_READ_URB_RUNNING
;
1992 urb
->complete
= edge_bulk_in_callback
;
1993 urb
->context
= edge_port
;
1995 status
= usb_submit_urb(urb
, GFP_KERNEL
);
1998 "%s - read bulk usb_submit_urb failed with value %d\n",
2000 goto unlink_int_urb
;
2003 ++edge_serial
->num_ports_open
;
2005 dbg("%s - exited", __func__
);
2007 goto release_es_lock
;
2010 if (edge_port
->edge_serial
->num_ports_open
== 0)
2011 usb_kill_urb(port
->serial
->port
[0]->interrupt_in_urb
);
2013 mutex_unlock(&edge_serial
->es_lock
);
2017 static void edge_close(struct usb_serial_port
*port
)
2019 struct edgeport_serial
*edge_serial
;
2020 struct edgeport_port
*edge_port
;
2024 dbg("%s - port %d", __func__
, port
->number
);
2026 edge_serial
= usb_get_serial_data(port
->serial
);
2027 edge_port
= usb_get_serial_port_data(port
);
2028 if (edge_serial
== NULL
|| edge_port
== NULL
)
2031 /* The bulkreadcompletion routine will check
2032 * this flag and dump add read data */
2033 edge_port
->close_pending
= 1;
2035 /* chase the port close and flush */
2036 chase_port(edge_port
, (HZ
* closing_wait
) / 100, 1);
2038 usb_kill_urb(port
->read_urb
);
2039 usb_kill_urb(port
->write_urb
);
2040 edge_port
->ep_write_urb_in_use
= 0;
2042 /* assuming we can still talk to the device,
2043 * send a close port command to it */
2044 dbg("%s - send umpc_close_port", __func__
);
2045 port_number
= port
->number
- port
->serial
->minor
;
2046 status
= send_cmd(port
->serial
->dev
,
2048 (__u8
)(UMPM_UART1_PORT
+ port_number
),
2052 mutex_lock(&edge_serial
->es_lock
);
2053 --edge_port
->edge_serial
->num_ports_open
;
2054 if (edge_port
->edge_serial
->num_ports_open
<= 0) {
2055 /* last port is now closed, let's shut down our interrupt urb */
2056 usb_kill_urb(port
->serial
->port
[0]->interrupt_in_urb
);
2057 edge_port
->edge_serial
->num_ports_open
= 0;
2059 mutex_unlock(&edge_serial
->es_lock
);
2060 edge_port
->close_pending
= 0;
2062 dbg("%s - exited", __func__
);
2065 static int edge_write(struct tty_struct
*tty
, struct usb_serial_port
*port
,
2066 const unsigned char *data
, int count
)
2068 struct edgeport_port
*edge_port
= usb_get_serial_port_data(port
);
2070 dbg("%s - port %d", __func__
, port
->number
);
2073 dbg("%s - write request of 0 bytes", __func__
);
2077 if (edge_port
== NULL
)
2079 if (edge_port
->close_pending
== 1)
2082 count
= kfifo_in_locked(&edge_port
->write_fifo
, data
, count
,
2083 &edge_port
->ep_lock
);
2089 static void edge_send(struct tty_struct
*tty
)
2091 struct usb_serial_port
*port
= tty
->driver_data
;
2093 struct edgeport_port
*edge_port
= usb_get_serial_port_data(port
);
2094 unsigned long flags
;
2097 dbg("%s - port %d", __func__
, port
->number
);
2099 spin_lock_irqsave(&edge_port
->ep_lock
, flags
);
2101 if (edge_port
->ep_write_urb_in_use
) {
2102 spin_unlock_irqrestore(&edge_port
->ep_lock
, flags
);
2106 count
= kfifo_out(&edge_port
->write_fifo
,
2107 port
->write_urb
->transfer_buffer
,
2108 port
->bulk_out_size
);
2111 spin_unlock_irqrestore(&edge_port
->ep_lock
, flags
);
2115 edge_port
->ep_write_urb_in_use
= 1;
2117 spin_unlock_irqrestore(&edge_port
->ep_lock
, flags
);
2119 usb_serial_debug_data(debug
, &port
->dev
, __func__
, count
,
2120 port
->write_urb
->transfer_buffer
);
2122 /* set up our urb */
2123 usb_fill_bulk_urb(port
->write_urb
, port
->serial
->dev
,
2124 usb_sndbulkpipe(port
->serial
->dev
,
2125 port
->bulk_out_endpointAddress
),
2126 port
->write_urb
->transfer_buffer
, count
,
2127 edge_bulk_out_callback
,
2130 /* send the data out the bulk port */
2131 result
= usb_submit_urb(port
->write_urb
, GFP_ATOMIC
);
2134 "%s - failed submitting write urb, error %d\n",
2136 edge_port
->ep_write_urb_in_use
= 0;
2137 /* TODO: reschedule edge_send */
2139 edge_port
->icount
.tx
+= count
;
2141 /* wakeup any process waiting for writes to complete */
2142 /* there is now more room in the buffer for new writes */
2147 static int edge_write_room(struct tty_struct
*tty
)
2149 struct usb_serial_port
*port
= tty
->driver_data
;
2150 struct edgeport_port
*edge_port
= usb_get_serial_port_data(port
);
2152 unsigned long flags
;
2154 dbg("%s - port %d", __func__
, port
->number
);
2156 if (edge_port
== NULL
)
2158 if (edge_port
->close_pending
== 1)
2161 spin_lock_irqsave(&edge_port
->ep_lock
, flags
);
2162 room
= kfifo_avail(&edge_port
->write_fifo
);
2163 spin_unlock_irqrestore(&edge_port
->ep_lock
, flags
);
2165 dbg("%s - returns %d", __func__
, room
);
2169 static int edge_chars_in_buffer(struct tty_struct
*tty
)
2171 struct usb_serial_port
*port
= tty
->driver_data
;
2172 struct edgeport_port
*edge_port
= usb_get_serial_port_data(port
);
2174 unsigned long flags
;
2176 dbg("%s - port %d", __func__
, port
->number
);
2178 if (edge_port
== NULL
)
2180 if (edge_port
->close_pending
== 1)
2183 spin_lock_irqsave(&edge_port
->ep_lock
, flags
);
2184 chars
= kfifo_len(&edge_port
->write_fifo
);
2185 spin_unlock_irqrestore(&edge_port
->ep_lock
, flags
);
2187 dbg("%s - returns %d", __func__
, chars
);
2191 static void edge_throttle(struct tty_struct
*tty
)
2193 struct usb_serial_port
*port
= tty
->driver_data
;
2194 struct edgeport_port
*edge_port
= usb_get_serial_port_data(port
);
2197 dbg("%s - port %d", __func__
, port
->number
);
2199 if (edge_port
== NULL
)
2202 /* if we are implementing XON/XOFF, send the stop character */
2204 unsigned char stop_char
= STOP_CHAR(tty
);
2205 status
= edge_write(tty
, port
, &stop_char
, 1);
2207 dev_err(&port
->dev
, "%s - failed to write stop character, %d\n", __func__
, status
);
2211 /* if we are implementing RTS/CTS, stop reads */
2212 /* and the Edgeport will clear the RTS line */
2214 stop_read(edge_port
);
2218 static void edge_unthrottle(struct tty_struct
*tty
)
2220 struct usb_serial_port
*port
= tty
->driver_data
;
2221 struct edgeport_port
*edge_port
= usb_get_serial_port_data(port
);
2224 dbg("%s - port %d", __func__
, port
->number
);
2226 if (edge_port
== NULL
)
2229 /* if we are implementing XON/XOFF, send the start character */
2231 unsigned char start_char
= START_CHAR(tty
);
2232 status
= edge_write(tty
, port
, &start_char
, 1);
2234 dev_err(&port
->dev
, "%s - failed to write start character, %d\n", __func__
, status
);
2237 /* if we are implementing RTS/CTS, restart reads */
2238 /* are the Edgeport will assert the RTS line */
2239 if (C_CRTSCTS(tty
)) {
2240 status
= restart_read(edge_port
);
2243 "%s - read bulk usb_submit_urb failed: %d\n",
2249 static void stop_read(struct edgeport_port
*edge_port
)
2251 unsigned long flags
;
2253 spin_lock_irqsave(&edge_port
->ep_lock
, flags
);
2255 if (edge_port
->ep_read_urb_state
== EDGE_READ_URB_RUNNING
)
2256 edge_port
->ep_read_urb_state
= EDGE_READ_URB_STOPPING
;
2257 edge_port
->shadow_mcr
&= ~MCR_RTS
;
2259 spin_unlock_irqrestore(&edge_port
->ep_lock
, flags
);
2262 static int restart_read(struct edgeport_port
*edge_port
)
2266 unsigned long flags
;
2268 spin_lock_irqsave(&edge_port
->ep_lock
, flags
);
2270 if (edge_port
->ep_read_urb_state
== EDGE_READ_URB_STOPPED
) {
2271 urb
= edge_port
->port
->read_urb
;
2272 urb
->complete
= edge_bulk_in_callback
;
2273 urb
->context
= edge_port
;
2274 urb
->dev
= edge_port
->port
->serial
->dev
;
2275 status
= usb_submit_urb(urb
, GFP_ATOMIC
);
2277 edge_port
->ep_read_urb_state
= EDGE_READ_URB_RUNNING
;
2278 edge_port
->shadow_mcr
|= MCR_RTS
;
2280 spin_unlock_irqrestore(&edge_port
->ep_lock
, flags
);
2285 static void change_port_settings(struct tty_struct
*tty
,
2286 struct edgeport_port
*edge_port
, struct ktermios
*old_termios
)
2288 struct ump_uart_config
*config
;
2292 int port_number
= edge_port
->port
->number
-
2293 edge_port
->port
->serial
->minor
;
2295 dbg("%s - port %d", __func__
, edge_port
->port
->number
);
2297 config
= kmalloc (sizeof (*config
), GFP_KERNEL
);
2299 *tty
->termios
= *old_termios
;
2300 dev_err(&edge_port
->port
->dev
, "%s - out of memory\n",
2305 cflag
= tty
->termios
->c_cflag
;
2309 /* These flags must be set */
2310 config
->wFlags
|= UMP_MASK_UART_FLAGS_RECEIVE_MS_INT
;
2311 config
->wFlags
|= UMP_MASK_UART_FLAGS_AUTO_START_ON_ERR
;
2312 config
->bUartMode
= (__u8
)(edge_port
->bUartMode
);
2314 switch (cflag
& CSIZE
) {
2316 config
->bDataBits
= UMP_UART_CHAR5BITS
;
2317 dbg("%s - data bits = 5", __func__
);
2320 config
->bDataBits
= UMP_UART_CHAR6BITS
;
2321 dbg("%s - data bits = 6", __func__
);
2324 config
->bDataBits
= UMP_UART_CHAR7BITS
;
2325 dbg("%s - data bits = 7", __func__
);
2329 config
->bDataBits
= UMP_UART_CHAR8BITS
;
2330 dbg("%s - data bits = 8", __func__
);
2334 if (cflag
& PARENB
) {
2335 if (cflag
& PARODD
) {
2336 config
->wFlags
|= UMP_MASK_UART_FLAGS_PARITY
;
2337 config
->bParity
= UMP_UART_ODDPARITY
;
2338 dbg("%s - parity = odd", __func__
);
2340 config
->wFlags
|= UMP_MASK_UART_FLAGS_PARITY
;
2341 config
->bParity
= UMP_UART_EVENPARITY
;
2342 dbg("%s - parity = even", __func__
);
2345 config
->bParity
= UMP_UART_NOPARITY
;
2346 dbg("%s - parity = none", __func__
);
2349 if (cflag
& CSTOPB
) {
2350 config
->bStopBits
= UMP_UART_STOPBIT2
;
2351 dbg("%s - stop bits = 2", __func__
);
2353 config
->bStopBits
= UMP_UART_STOPBIT1
;
2354 dbg("%s - stop bits = 1", __func__
);
2357 /* figure out the flow control settings */
2358 if (cflag
& CRTSCTS
) {
2359 config
->wFlags
|= UMP_MASK_UART_FLAGS_OUT_X_CTS_FLOW
;
2360 config
->wFlags
|= UMP_MASK_UART_FLAGS_RTS_FLOW
;
2361 dbg("%s - RTS/CTS is enabled", __func__
);
2363 dbg("%s - RTS/CTS is disabled", __func__
);
2364 tty
->hw_stopped
= 0;
2365 restart_read(edge_port
);
2368 /* if we are implementing XON/XOFF, set the start and stop
2369 character in the device */
2370 config
->cXon
= START_CHAR(tty
);
2371 config
->cXoff
= STOP_CHAR(tty
);
2373 /* if we are implementing INBOUND XON/XOFF */
2375 config
->wFlags
|= UMP_MASK_UART_FLAGS_IN_X
;
2376 dbg("%s - INBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x",
2377 __func__
, config
->cXon
, config
->cXoff
);
2379 dbg("%s - INBOUND XON/XOFF is disabled", __func__
);
2381 /* if we are implementing OUTBOUND XON/XOFF */
2383 config
->wFlags
|= UMP_MASK_UART_FLAGS_OUT_X
;
2384 dbg("%s - OUTBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x",
2385 __func__
, config
->cXon
, config
->cXoff
);
2387 dbg("%s - OUTBOUND XON/XOFF is disabled", __func__
);
2389 tty
->termios
->c_cflag
&= ~CMSPAR
;
2391 /* Round the baud rate */
2392 baud
= tty_get_baud_rate(tty
);
2394 /* pick a default, any default... */
2397 tty_encode_baud_rate(tty
, baud
, baud
);
2399 edge_port
->baud_rate
= baud
;
2400 config
->wBaudRate
= (__u16
)((461550L + baud
/2) / baud
);
2402 /* FIXME: Recompute actual baud from divisor here */
2404 dbg("%s - baud rate = %d, wBaudRate = %d", __func__
, baud
,
2407 dbg("wBaudRate: %d", (int)(461550L / config
->wBaudRate
));
2408 dbg("wFlags: 0x%x", config
->wFlags
);
2409 dbg("bDataBits: %d", config
->bDataBits
);
2410 dbg("bParity: %d", config
->bParity
);
2411 dbg("bStopBits: %d", config
->bStopBits
);
2412 dbg("cXon: %d", config
->cXon
);
2413 dbg("cXoff: %d", config
->cXoff
);
2414 dbg("bUartMode: %d", config
->bUartMode
);
2416 /* move the word values into big endian mode */
2417 cpu_to_be16s(&config
->wFlags
);
2418 cpu_to_be16s(&config
->wBaudRate
);
2420 status
= send_cmd(edge_port
->port
->serial
->dev
, UMPC_SET_CONFIG
,
2421 (__u8
)(UMPM_UART1_PORT
+ port_number
),
2422 0, (__u8
*)config
, sizeof(*config
));
2424 dbg("%s - error %d when trying to write config to device",
2430 static void edge_set_termios(struct tty_struct
*tty
,
2431 struct usb_serial_port
*port
, struct ktermios
*old_termios
)
2433 struct edgeport_port
*edge_port
= usb_get_serial_port_data(port
);
2436 cflag
= tty
->termios
->c_cflag
;
2438 dbg("%s - clfag %08x iflag %08x", __func__
,
2439 tty
->termios
->c_cflag
, tty
->termios
->c_iflag
);
2440 dbg("%s - old clfag %08x old iflag %08x", __func__
,
2441 old_termios
->c_cflag
, old_termios
->c_iflag
);
2442 dbg("%s - port %d", __func__
, port
->number
);
2444 if (edge_port
== NULL
)
2446 /* change the port settings to the new ones specified */
2447 change_port_settings(tty
, edge_port
, old_termios
);
2451 static int edge_tiocmset(struct tty_struct
*tty
, struct file
*file
,
2452 unsigned int set
, unsigned int clear
)
2454 struct usb_serial_port
*port
= tty
->driver_data
;
2455 struct edgeport_port
*edge_port
= usb_get_serial_port_data(port
);
2457 unsigned long flags
;
2459 dbg("%s - port %d", __func__
, port
->number
);
2461 spin_lock_irqsave(&edge_port
->ep_lock
, flags
);
2462 mcr
= edge_port
->shadow_mcr
;
2463 if (set
& TIOCM_RTS
)
2465 if (set
& TIOCM_DTR
)
2467 if (set
& TIOCM_LOOP
)
2468 mcr
|= MCR_LOOPBACK
;
2470 if (clear
& TIOCM_RTS
)
2472 if (clear
& TIOCM_DTR
)
2474 if (clear
& TIOCM_LOOP
)
2475 mcr
&= ~MCR_LOOPBACK
;
2477 edge_port
->shadow_mcr
= mcr
;
2478 spin_unlock_irqrestore(&edge_port
->ep_lock
, flags
);
2480 restore_mcr(edge_port
, mcr
);
2484 static int edge_tiocmget(struct tty_struct
*tty
, struct file
*file
)
2486 struct usb_serial_port
*port
= tty
->driver_data
;
2487 struct edgeport_port
*edge_port
= usb_get_serial_port_data(port
);
2488 unsigned int result
= 0;
2491 unsigned long flags
;
2493 dbg("%s - port %d", __func__
, port
->number
);
2495 spin_lock_irqsave(&edge_port
->ep_lock
, flags
);
2497 msr
= edge_port
->shadow_msr
;
2498 mcr
= edge_port
->shadow_mcr
;
2499 result
= ((mcr
& MCR_DTR
) ? TIOCM_DTR
: 0) /* 0x002 */
2500 | ((mcr
& MCR_RTS
) ? TIOCM_RTS
: 0) /* 0x004 */
2501 | ((msr
& EDGEPORT_MSR_CTS
) ? TIOCM_CTS
: 0) /* 0x020 */
2502 | ((msr
& EDGEPORT_MSR_CD
) ? TIOCM_CAR
: 0) /* 0x040 */
2503 | ((msr
& EDGEPORT_MSR_RI
) ? TIOCM_RI
: 0) /* 0x080 */
2504 | ((msr
& EDGEPORT_MSR_DSR
) ? TIOCM_DSR
: 0); /* 0x100 */
2507 dbg("%s -- %x", __func__
, result
);
2508 spin_unlock_irqrestore(&edge_port
->ep_lock
, flags
);
2513 static int get_serial_info(struct edgeport_port
*edge_port
,
2514 struct serial_struct __user
*retinfo
)
2516 struct serial_struct tmp
;
2521 memset(&tmp
, 0, sizeof(tmp
));
2523 tmp
.type
= PORT_16550A
;
2524 tmp
.line
= edge_port
->port
->serial
->minor
;
2525 tmp
.port
= edge_port
->port
->number
;
2527 tmp
.flags
= ASYNC_SKIP_TEST
| ASYNC_AUTO_IRQ
;
2528 tmp
.xmit_fifo_size
= edge_port
->port
->bulk_out_size
;
2529 tmp
.baud_base
= 9600;
2530 tmp
.close_delay
= 5*HZ
;
2531 tmp
.closing_wait
= closing_wait
;
2533 if (copy_to_user(retinfo
, &tmp
, sizeof(*retinfo
)))
2538 static int edge_ioctl(struct tty_struct
*tty
, struct file
*file
,
2539 unsigned int cmd
, unsigned long arg
)
2541 struct usb_serial_port
*port
= tty
->driver_data
;
2542 struct edgeport_port
*edge_port
= usb_get_serial_port_data(port
);
2543 struct async_icount cnow
;
2544 struct async_icount cprev
;
2546 dbg("%s - port %d, cmd = 0x%x", __func__
, port
->number
, cmd
);
2550 dbg("%s - (%d) TIOCGSERIAL", __func__
, port
->number
);
2551 return get_serial_info(edge_port
,
2552 (struct serial_struct __user
*) arg
);
2554 dbg("%s - (%d) TIOCMIWAIT", __func__
, port
->number
);
2555 cprev
= edge_port
->icount
;
2557 interruptible_sleep_on(&edge_port
->delta_msr_wait
);
2558 /* see if a signal did it */
2559 if (signal_pending(current
))
2560 return -ERESTARTSYS
;
2561 cnow
= edge_port
->icount
;
2562 if (cnow
.rng
== cprev
.rng
&& cnow
.dsr
== cprev
.dsr
&&
2563 cnow
.dcd
== cprev
.dcd
&& cnow
.cts
== cprev
.cts
)
2564 return -EIO
; /* no change => error */
2565 if (((arg
& TIOCM_RNG
) && (cnow
.rng
!= cprev
.rng
)) ||
2566 ((arg
& TIOCM_DSR
) && (cnow
.dsr
!= cprev
.dsr
)) ||
2567 ((arg
& TIOCM_CD
) && (cnow
.dcd
!= cprev
.dcd
)) ||
2568 ((arg
& TIOCM_CTS
) && (cnow
.cts
!= cprev
.cts
))) {
2576 dbg("%s - (%d) TIOCGICOUNT RX=%d, TX=%d", __func__
,
2577 port
->number
, edge_port
->icount
.rx
, edge_port
->icount
.tx
);
2578 if (copy_to_user((void __user
*)arg
, &edge_port
->icount
,
2579 sizeof(edge_port
->icount
)))
2583 return -ENOIOCTLCMD
;
2586 static void edge_break(struct tty_struct
*tty
, int break_state
)
2588 struct usb_serial_port
*port
= tty
->driver_data
;
2589 struct edgeport_port
*edge_port
= usb_get_serial_port_data(port
);
2591 int bv
= 0; /* Off */
2593 dbg("%s - state = %d", __func__
, break_state
);
2595 /* chase the port close */
2596 chase_port(edge_port
, 0, 0);
2598 if (break_state
== -1)
2600 status
= ti_do_config(edge_port
, UMPC_SET_CLR_BREAK
, bv
);
2602 dbg("%s - error %d sending break set/clear command.",
2606 static int edge_startup(struct usb_serial
*serial
)
2608 struct edgeport_serial
*edge_serial
;
2609 struct edgeport_port
*edge_port
;
2610 struct usb_device
*dev
;
2616 /* create our private serial structure */
2617 edge_serial
= kzalloc(sizeof(struct edgeport_serial
), GFP_KERNEL
);
2618 if (edge_serial
== NULL
) {
2619 dev_err(&serial
->dev
->dev
, "%s - Out of memory\n", __func__
);
2622 mutex_init(&edge_serial
->es_lock
);
2623 edge_serial
->serial
= serial
;
2624 usb_set_serial_data(serial
, edge_serial
);
2626 status
= download_fw(edge_serial
);
2632 /* set up our port private structures */
2633 for (i
= 0; i
< serial
->num_ports
; ++i
) {
2634 edge_port
= kzalloc(sizeof(struct edgeport_port
), GFP_KERNEL
);
2635 if (edge_port
== NULL
) {
2636 dev_err(&serial
->dev
->dev
, "%s - Out of memory\n",
2640 spin_lock_init(&edge_port
->ep_lock
);
2641 if (kfifo_alloc(&edge_port
->write_fifo
, EDGE_OUT_BUF_SIZE
,
2643 dev_err(&serial
->dev
->dev
, "%s - Out of memory\n",
2648 edge_port
->port
= serial
->port
[i
];
2649 edge_port
->edge_serial
= edge_serial
;
2650 usb_set_serial_port_data(serial
->port
[i
], edge_port
);
2651 edge_port
->bUartMode
= default_uart_mode
;
2657 for (--i
; i
>= 0; --i
) {
2658 edge_port
= usb_get_serial_port_data(serial
->port
[i
]);
2659 kfifo_free(&edge_port
->write_fifo
);
2661 usb_set_serial_port_data(serial
->port
[i
], NULL
);
2664 usb_set_serial_data(serial
, NULL
);
2668 static void edge_disconnect(struct usb_serial
*serial
)
2671 struct edgeport_port
*edge_port
;
2673 dbg("%s", __func__
);
2675 for (i
= 0; i
< serial
->num_ports
; ++i
) {
2676 edge_port
= usb_get_serial_port_data(serial
->port
[i
]);
2677 edge_remove_sysfs_attrs(edge_port
->port
);
2681 static void edge_release(struct usb_serial
*serial
)
2684 struct edgeport_port
*edge_port
;
2686 dbg("%s", __func__
);
2688 for (i
= 0; i
< serial
->num_ports
; ++i
) {
2689 edge_port
= usb_get_serial_port_data(serial
->port
[i
]);
2690 kfifo_free(&edge_port
->write_fifo
);
2693 kfree(usb_get_serial_data(serial
));
2697 /* Sysfs Attributes */
2699 static ssize_t
show_uart_mode(struct device
*dev
,
2700 struct device_attribute
*attr
, char *buf
)
2702 struct usb_serial_port
*port
= to_usb_serial_port(dev
);
2703 struct edgeport_port
*edge_port
= usb_get_serial_port_data(port
);
2705 return sprintf(buf
, "%d\n", edge_port
->bUartMode
);
2708 static ssize_t
store_uart_mode(struct device
*dev
,
2709 struct device_attribute
*attr
, const char *valbuf
, size_t count
)
2711 struct usb_serial_port
*port
= to_usb_serial_port(dev
);
2712 struct edgeport_port
*edge_port
= usb_get_serial_port_data(port
);
2713 unsigned int v
= simple_strtoul(valbuf
, NULL
, 0);
2715 dbg("%s: setting uart_mode = %d", __func__
, v
);
2718 edge_port
->bUartMode
= v
;
2720 dev_err(dev
, "%s - uart_mode %d is invalid\n", __func__
, v
);
2725 static DEVICE_ATTR(uart_mode
, S_IWUSR
| S_IRUGO
, show_uart_mode
,
2728 static int edge_create_sysfs_attrs(struct usb_serial_port
*port
)
2730 return device_create_file(&port
->dev
, &dev_attr_uart_mode
);
2733 static int edge_remove_sysfs_attrs(struct usb_serial_port
*port
)
2735 device_remove_file(&port
->dev
, &dev_attr_uart_mode
);
2740 static struct usb_serial_driver edgeport_1port_device
= {
2742 .owner
= THIS_MODULE
,
2743 .name
= "edgeport_ti_1",
2745 .description
= "Edgeport TI 1 port adapter",
2746 .usb_driver
= &io_driver
,
2747 .id_table
= edgeport_1port_id_table
,
2750 .close
= edge_close
,
2751 .throttle
= edge_throttle
,
2752 .unthrottle
= edge_unthrottle
,
2753 .attach
= edge_startup
,
2754 .disconnect
= edge_disconnect
,
2755 .release
= edge_release
,
2756 .port_probe
= edge_create_sysfs_attrs
,
2757 .ioctl
= edge_ioctl
,
2758 .set_termios
= edge_set_termios
,
2759 .tiocmget
= edge_tiocmget
,
2760 .tiocmset
= edge_tiocmset
,
2761 .write
= edge_write
,
2762 .write_room
= edge_write_room
,
2763 .chars_in_buffer
= edge_chars_in_buffer
,
2764 .break_ctl
= edge_break
,
2765 .read_int_callback
= edge_interrupt_callback
,
2766 .read_bulk_callback
= edge_bulk_in_callback
,
2767 .write_bulk_callback
= edge_bulk_out_callback
,
2770 static struct usb_serial_driver edgeport_2port_device
= {
2772 .owner
= THIS_MODULE
,
2773 .name
= "edgeport_ti_2",
2775 .description
= "Edgeport TI 2 port adapter",
2776 .usb_driver
= &io_driver
,
2777 .id_table
= edgeport_2port_id_table
,
2780 .close
= edge_close
,
2781 .throttle
= edge_throttle
,
2782 .unthrottle
= edge_unthrottle
,
2783 .attach
= edge_startup
,
2784 .disconnect
= edge_disconnect
,
2785 .release
= edge_release
,
2786 .port_probe
= edge_create_sysfs_attrs
,
2787 .ioctl
= edge_ioctl
,
2788 .set_termios
= edge_set_termios
,
2789 .tiocmget
= edge_tiocmget
,
2790 .tiocmset
= edge_tiocmset
,
2791 .write
= edge_write
,
2792 .write_room
= edge_write_room
,
2793 .chars_in_buffer
= edge_chars_in_buffer
,
2794 .break_ctl
= edge_break
,
2795 .read_int_callback
= edge_interrupt_callback
,
2796 .read_bulk_callback
= edge_bulk_in_callback
,
2797 .write_bulk_callback
= edge_bulk_out_callback
,
2801 static int __init
edgeport_init(void)
2804 retval
= usb_serial_register(&edgeport_1port_device
);
2806 goto failed_1port_device_register
;
2807 retval
= usb_serial_register(&edgeport_2port_device
);
2809 goto failed_2port_device_register
;
2810 retval
= usb_register(&io_driver
);
2812 goto failed_usb_register
;
2813 printk(KERN_INFO KBUILD_MODNAME
": " DRIVER_VERSION
":"
2816 failed_usb_register
:
2817 usb_serial_deregister(&edgeport_2port_device
);
2818 failed_2port_device_register
:
2819 usb_serial_deregister(&edgeport_1port_device
);
2820 failed_1port_device_register
:
2824 static void __exit
edgeport_exit(void)
2826 usb_deregister(&io_driver
);
2827 usb_serial_deregister(&edgeport_1port_device
);
2828 usb_serial_deregister(&edgeport_2port_device
);
2831 module_init(edgeport_init
);
2832 module_exit(edgeport_exit
);
2834 /* Module information */
2835 MODULE_AUTHOR(DRIVER_AUTHOR
);
2836 MODULE_DESCRIPTION(DRIVER_DESC
);
2837 MODULE_LICENSE("GPL");
2838 MODULE_FIRMWARE("edgeport/down3.bin");
2840 module_param(debug
, bool, S_IRUGO
| S_IWUSR
);
2841 MODULE_PARM_DESC(debug
, "Debug enabled or not");
2843 module_param(closing_wait
, int, S_IRUGO
| S_IWUSR
);
2844 MODULE_PARM_DESC(closing_wait
, "Maximum wait for data to drain, in .01 secs");
2846 module_param(ignore_cpu_rev
, bool, S_IRUGO
| S_IWUSR
);
2847 MODULE_PARM_DESC(ignore_cpu_rev
,
2848 "Ignore the cpu revision when connecting to a device");
2850 module_param(default_uart_mode
, int, S_IRUGO
| S_IWUSR
);
2851 MODULE_PARM_DESC(default_uart_mode
, "Default uart_mode, 0=RS232, ...");