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>.
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>
30 #include <linux/mutex.h>
31 #include <linux/serial.h>
32 #include <linux/kfifo.h>
33 #include <linux/ioctl.h>
34 #include <linux/firmware.h>
35 #include <linux/uaccess.h>
36 #include <linux/usb.h>
37 #include <linux/usb/serial.h>
40 #include "io_usbvend.h"
46 #define DRIVER_VERSION "v0.7mode043006"
47 #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com> and David Iacovelli"
48 #define DRIVER_DESC "Edgeport USB Serial Driver"
50 #define EPROM_PAGE_SIZE 64
53 /* different hardware types */
54 #define HARDWARE_TYPE_930 0
55 #define HARDWARE_TYPE_TIUMP 1
57 /* IOCTL_PRIVATE_TI_GET_MODE Definitions */
58 #define TI_MODE_CONFIGURING 0 /* Device has not entered start device */
59 #define TI_MODE_BOOT 1 /* Staying in boot mode */
60 #define TI_MODE_DOWNLOAD 2 /* Made it to download mode */
61 #define TI_MODE_TRANSITIONING 3 /* Currently in boot mode but
62 transitioning to download mode */
65 #define EDGE_READ_URB_RUNNING 0
66 #define EDGE_READ_URB_STOPPING 1
67 #define EDGE_READ_URB_STOPPED 2
69 #define EDGE_CLOSING_WAIT 4000 /* in .01 sec */
71 #define EDGE_OUT_BUF_SIZE 1024
74 /* Product information read from the Edgeport */
76 int TiMode; /* Current TI Mode */
77 __u8 hardware_type; /* Type of hardware */
78 } __attribute__((packed));
80 struct edgeport_port {
87 __u32 ump_read_timeout; /* Number of milliseconds the UMP will
88 wait without data before completing
93 struct async_icount icount;
94 wait_queue_head_t delta_msr_wait; /* for handling sleeping while
95 waiting for msr change to
97 struct edgeport_serial *edge_serial;
98 struct usb_serial_port *port;
99 __u8 bUartMode; /* Port type, 0: RS232, etc. */
101 int ep_read_urb_state;
102 int ep_write_urb_in_use;
103 struct kfifo write_fifo;
106 struct edgeport_serial {
107 struct product_info product_info;
108 u8 TI_I2C_Type; /* Type of I2C in UMP */
109 u8 TiReadI2C; /* Set to TRUE if we have read the
111 struct mutex es_lock;
113 struct usb_serial *serial;
117 /* Devices that this driver supports */
118 static const struct usb_device_id edgeport_1port_id_table[] = {
119 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_1) },
120 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1) },
121 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1I) },
122 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROXIMITY) },
123 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOTION) },
124 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOISTURE) },
125 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_TEMPERATURE) },
126 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_HUMIDITY) },
127 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_POWER) },
128 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_LIGHT) },
129 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_RADIATION) },
130 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_DISTANCE) },
131 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_ACCELERATION) },
132 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROX_DIST) },
133 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_HP4CD) },
134 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_PCI) },
138 static const struct usb_device_id edgeport_2port_id_table[] = {
139 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2) },
140 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2C) },
141 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2I) },
142 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_421) },
143 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21) },
144 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_42) },
145 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4) },
146 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4I) },
147 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22I) },
148 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_221C) },
149 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22C) },
150 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21C) },
151 /* The 4, 8 and 16 port devices show up as multiple 2 port devices */
152 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4S) },
153 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8) },
154 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8S) },
155 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416) },
156 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416B) },
160 /* Devices that this driver supports */
161 static const struct usb_device_id id_table_combined[] = {
162 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_1) },
163 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1) },
164 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_TI3410_EDGEPORT_1I) },
165 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROXIMITY) },
166 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOTION) },
167 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_MOISTURE) },
168 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_TEMPERATURE) },
169 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_HUMIDITY) },
170 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_POWER) },
171 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_LIGHT) },
172 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_RADIATION) },
173 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_DISTANCE) },
174 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_ACCELERATION) },
175 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_WP_PROX_DIST) },
176 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_HP4CD) },
177 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_PLUS_PWR_PCI) },
178 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2) },
179 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2C) },
180 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_2I) },
181 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_421) },
182 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21) },
183 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_42) },
184 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4) },
185 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4I) },
186 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22I) },
187 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_221C) },
188 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_22C) },
189 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_21C) },
190 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_4S) },
191 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8) },
192 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_8S) },
193 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416) },
194 { USB_DEVICE(USB_VENDOR_ID_ION, ION_DEVICE_ID_TI_EDGEPORT_416B) },
198 MODULE_DEVICE_TABLE(usb, id_table_combined);
200 static unsigned char OperationalMajorVersion;
201 static unsigned char OperationalMinorVersion;
202 static unsigned short OperationalBuildNumber;
204 static int closing_wait = EDGE_CLOSING_WAIT;
205 static bool ignore_cpu_rev;
206 static int default_uart_mode; /* RS232 */
208 static void edge_tty_recv(struct device *dev, struct tty_struct *tty,
209 unsigned char *data, int length);
211 static void stop_read(struct edgeport_port *edge_port);
212 static int restart_read(struct edgeport_port *edge_port);
214 static void edge_set_termios(struct tty_struct *tty,
215 struct usb_serial_port *port, struct ktermios *old_termios);
216 static void edge_send(struct tty_struct *tty);
218 /* sysfs attributes */
219 static int edge_create_sysfs_attrs(struct usb_serial_port *port);
220 static int edge_remove_sysfs_attrs(struct usb_serial_port *port);
223 static int ti_vread_sync(struct usb_device *dev, __u8 request,
224 __u16 value, __u16 index, u8 *data, int size)
228 status = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), request,
229 (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN),
230 value, index, data, size, 1000);
233 if (status != size) {
234 dev_dbg(&dev->dev, "%s - wanted to write %d, but only wrote %d\n",
235 __func__, size, status);
241 static int ti_vsend_sync(struct usb_device *dev, __u8 request,
242 __u16 value, __u16 index, u8 *data, int size)
246 status = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), request,
247 (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT),
248 value, index, data, size, 1000);
251 if (status != size) {
252 dev_dbg(&dev->dev, "%s - wanted to write %d, but only wrote %d\n",
253 __func__, size, status);
259 static int send_cmd(struct usb_device *dev, __u8 command,
260 __u8 moduleid, __u16 value, u8 *data,
263 return ti_vsend_sync(dev, command, value, moduleid, data, size);
266 /* clear tx/rx buffers and fifo in TI UMP */
267 static int purge_port(struct usb_serial_port *port, __u16 mask)
269 int port_number = port->number - port->serial->minor;
271 dev_dbg(&port->dev, "%s - port %d, mask %x\n", __func__, port_number, mask);
273 return send_cmd(port->serial->dev,
275 (__u8)(UMPM_UART1_PORT + port_number),
282 * read_download_mem - Read edgeport memory from TI chip
283 * @dev: usb device pointer
284 * @start_address: Device CPU address at which to read
285 * @length: Length of above data
286 * @address_type: Can read both XDATA and I2C
287 * @buffer: pointer to input data buffer
289 static int read_download_mem(struct usb_device *dev, int start_address,
290 int length, __u8 address_type, __u8 *buffer)
294 __be16 be_start_address;
296 dev_dbg(&dev->dev, "%s - @ %x for %d\n", __func__, start_address, length);
298 /* Read in blocks of 64 bytes
299 * (TI firmware can't handle more than 64 byte reads)
305 read_length = (__u8)length;
307 if (read_length > 1) {
308 dev_dbg(&dev->dev, "%s - @ %x for %d\n", __func__, start_address, read_length);
310 be_start_address = cpu_to_be16(start_address);
311 status = ti_vread_sync(dev, UMPC_MEMORY_READ,
313 (__force __u16)be_start_address,
314 buffer, read_length);
317 dev_dbg(&dev->dev, "%s - ERROR %x\n", __func__, status);
322 usb_serial_debug_data(&dev->dev, __func__, read_length, buffer);
324 /* Update pointers/length */
325 start_address += read_length;
326 buffer += read_length;
327 length -= read_length;
333 static int read_ram(struct usb_device *dev, int start_address,
334 int length, __u8 *buffer)
336 return read_download_mem(dev, start_address, length,
337 DTK_ADDR_SPACE_XDATA, buffer);
340 /* Read edgeport memory to a given block */
341 static int read_boot_mem(struct edgeport_serial *serial,
342 int start_address, int length, __u8 *buffer)
347 for (i = 0; i < length; i++) {
348 status = ti_vread_sync(serial->serial->dev,
349 UMPC_MEMORY_READ, serial->TI_I2C_Type,
350 (__u16)(start_address+i), &buffer[i], 0x01);
352 dev_dbg(&serial->serial->dev->dev, "%s - ERROR %x\n", __func__, status);
357 dev_dbg(&serial->serial->dev->dev, "%s - start_address = %x, length = %d\n",
358 __func__, start_address, length);
359 usb_serial_debug_data(&serial->serial->dev->dev, __func__, length, buffer);
361 serial->TiReadI2C = 1;
366 /* Write given block to TI EPROM memory */
367 static int write_boot_mem(struct edgeport_serial *serial,
368 int start_address, int length, __u8 *buffer)
374 /* Must do a read before write */
375 if (!serial->TiReadI2C) {
376 temp = kmalloc(1, GFP_KERNEL);
378 dev_err(&serial->serial->dev->dev,
379 "%s - out of memory\n", __func__);
382 status = read_boot_mem(serial, 0, 1, temp);
388 for (i = 0; i < length; ++i) {
389 status = ti_vsend_sync(serial->serial->dev,
390 UMPC_MEMORY_WRITE, buffer[i],
391 (__u16)(i + start_address), NULL, 0);
396 dev_dbg(&serial->serial->dev->dev, "%s - start_sddr = %x, length = %d\n", __func__, start_address, length);
397 usb_serial_debug_data(&serial->serial->dev->dev, __func__, length, buffer);
403 /* Write edgeport I2C memory to TI chip */
404 static int write_i2c_mem(struct edgeport_serial *serial,
405 int start_address, int length, __u8 address_type, __u8 *buffer)
407 struct device *dev = &serial->serial->dev->dev;
410 __be16 be_start_address;
412 /* We can only send a maximum of 1 aligned byte page at a time */
414 /* calculate the number of bytes left in the first page */
415 write_length = EPROM_PAGE_SIZE -
416 (start_address & (EPROM_PAGE_SIZE - 1));
418 if (write_length > length)
419 write_length = length;
421 dev_dbg(dev, "%s - BytesInFirstPage Addr = %x, length = %d\n",
422 __func__, start_address, write_length);
423 usb_serial_debug_data(dev, __func__, write_length, buffer);
425 /* Write first page */
426 be_start_address = cpu_to_be16(start_address);
427 status = ti_vsend_sync(serial->serial->dev,
428 UMPC_MEMORY_WRITE, (__u16)address_type,
429 (__force __u16)be_start_address,
430 buffer, write_length);
432 dev_dbg(dev, "%s - ERROR %d\n", __func__, status);
436 length -= write_length;
437 start_address += write_length;
438 buffer += write_length;
440 /* We should be aligned now -- can write
441 max page size bytes at a time */
443 if (length > EPROM_PAGE_SIZE)
444 write_length = EPROM_PAGE_SIZE;
446 write_length = length;
448 dev_dbg(dev, "%s - Page Write Addr = %x, length = %d\n",
449 __func__, start_address, write_length);
450 usb_serial_debug_data(dev, __func__, write_length, buffer);
452 /* Write next page */
453 be_start_address = cpu_to_be16(start_address);
454 status = ti_vsend_sync(serial->serial->dev, UMPC_MEMORY_WRITE,
456 (__force __u16)be_start_address,
457 buffer, write_length);
459 dev_err(dev, "%s - ERROR %d\n", __func__, status);
463 length -= write_length;
464 start_address += write_length;
465 buffer += write_length;
470 /* Examine the UMP DMA registers and LSR
472 * Check the MSBit of the X and Y DMA byte count registers.
473 * A zero in this bit indicates that the TX DMA buffers are empty
474 * then check the TX Empty bit in the UART.
476 static int tx_active(struct edgeport_port *port)
479 struct out_endpoint_desc_block *oedb;
483 oedb = kmalloc(sizeof(*oedb), GFP_KERNEL);
485 dev_err(&port->port->dev, "%s - out of memory\n", __func__);
489 lsr = kmalloc(1, GFP_KERNEL); /* Sigh, that's right, just one byte,
490 as not all platforms can do DMA
496 /* Read the DMA Count Registers */
497 status = read_ram(port->port->serial->dev, port->dma_address,
498 sizeof(*oedb), (void *)oedb);
500 goto exit_is_tx_active;
502 dev_dbg(&port->port->dev, "%s - XByteCount 0x%X\n", __func__, oedb->XByteCount);
505 status = read_ram(port->port->serial->dev,
506 port->uart_base + UMPMEM_OFFS_UART_LSR, 1, lsr);
509 goto exit_is_tx_active;
510 dev_dbg(&port->port->dev, "%s - LSR = 0x%X\n", __func__, *lsr);
512 /* If either buffer has data or we are transmitting then return TRUE */
513 if ((oedb->XByteCount & 0x80) != 0)
516 if ((*lsr & UMP_UART_LSR_TX_MASK) == 0)
519 /* We return Not Active if we get any kind of error */
521 dev_dbg(&port->port->dev, "%s - return %d\n", __func__, bytes_left);
528 static void chase_port(struct edgeport_port *port, unsigned long timeout,
532 struct tty_struct *tty = tty_port_tty_get(&port->port->port);
533 struct usb_serial *serial = port->port->serial;
538 timeout = (HZ * EDGE_CLOSING_WAIT)/100;
540 /* wait for data to drain from the buffer */
541 spin_lock_irqsave(&port->ep_lock, flags);
542 init_waitqueue_entry(&wait, current);
543 add_wait_queue(&tty->write_wait, &wait);
545 set_current_state(TASK_INTERRUPTIBLE);
546 if (kfifo_len(&port->write_fifo) == 0
547 || timeout == 0 || signal_pending(current)
548 || serial->disconnected)
551 spin_unlock_irqrestore(&port->ep_lock, flags);
552 timeout = schedule_timeout(timeout);
553 spin_lock_irqsave(&port->ep_lock, flags);
555 set_current_state(TASK_RUNNING);
556 remove_wait_queue(&tty->write_wait, &wait);
558 kfifo_reset_out(&port->write_fifo);
559 spin_unlock_irqrestore(&port->ep_lock, flags);
562 /* wait for data to drain from the device */
564 while ((long)(jiffies - timeout) < 0 && !signal_pending(current)
565 && !serial->disconnected) {
566 /* not disconnected */
567 if (!tx_active(port))
573 if (serial->disconnected)
576 /* wait one more character time, based on baud rate */
577 /* (tx_active doesn't seem to wait for the last byte) */
578 baud_rate = port->baud_rate;
581 msleep(max(1, DIV_ROUND_UP(10000, baud_rate)));
584 static int choose_config(struct usb_device *dev)
587 * There may be multiple configurations on this device, in which case
588 * we would need to read and parse all of them to find out which one
589 * we want. However, we just support one config at this point,
590 * configuration # 1, which is Config Descriptor 0.
593 dev_dbg(&dev->dev, "%s - Number of Interfaces = %d\n",
594 __func__, dev->config->desc.bNumInterfaces);
595 dev_dbg(&dev->dev, "%s - MAX Power = %d\n",
596 __func__, dev->config->desc.bMaxPower * 2);
598 if (dev->config->desc.bNumInterfaces != 1) {
599 dev_err(&dev->dev, "%s - bNumInterfaces is not 1, ERROR!\n", __func__);
606 static int read_rom(struct edgeport_serial *serial,
607 int start_address, int length, __u8 *buffer)
611 if (serial->product_info.TiMode == TI_MODE_DOWNLOAD) {
612 status = read_download_mem(serial->serial->dev,
618 status = read_boot_mem(serial, start_address, length,
624 static int write_rom(struct edgeport_serial *serial, int start_address,
625 int length, __u8 *buffer)
627 if (serial->product_info.TiMode == TI_MODE_BOOT)
628 return write_boot_mem(serial, start_address, length,
631 if (serial->product_info.TiMode == TI_MODE_DOWNLOAD)
632 return write_i2c_mem(serial, start_address, length,
633 serial->TI_I2C_Type, buffer);
639 /* Read a descriptor header from I2C based on type */
640 static int get_descriptor_addr(struct edgeport_serial *serial,
641 int desc_type, struct ti_i2c_desc *rom_desc)
646 /* Search for requested descriptor in I2C */
649 status = read_rom(serial,
651 sizeof(struct ti_i2c_desc),
656 if (rom_desc->Type == desc_type)
657 return start_address;
659 start_address = start_address + sizeof(struct ti_i2c_desc)
662 } while ((start_address < TI_MAX_I2C_SIZE) && rom_desc->Type);
667 /* Validate descriptor checksum */
668 static int valid_csum(struct ti_i2c_desc *rom_desc, __u8 *buffer)
673 for (i = 0; i < rom_desc->Size; i++)
674 cs = (__u8)(cs + buffer[i]);
676 if (cs != rom_desc->CheckSum) {
677 pr_debug("%s - Mismatch %x - %x", __func__, rom_desc->CheckSum, cs);
683 /* Make sure that the I2C image is good */
684 static int check_i2c_image(struct edgeport_serial *serial)
686 struct device *dev = &serial->serial->dev->dev;
688 struct ti_i2c_desc *rom_desc;
689 int start_address = 2;
693 rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL);
695 dev_err(dev, "%s - out of memory\n", __func__);
698 buffer = kmalloc(TI_MAX_I2C_SIZE, GFP_KERNEL);
700 dev_err(dev, "%s - out of memory when allocating buffer\n",
706 /* Read the first byte (Signature0) must be 0x52 or 0x10 */
707 status = read_rom(serial, 0, 1, buffer);
711 if (*buffer != UMP5152 && *buffer != UMP3410) {
712 dev_err(dev, "%s - invalid buffer signature\n", __func__);
718 /* Validate the I2C */
719 status = read_rom(serial,
721 sizeof(struct ti_i2c_desc),
726 if ((start_address + sizeof(struct ti_i2c_desc) +
727 rom_desc->Size) > TI_MAX_I2C_SIZE) {
729 dev_dbg(dev, "%s - structure too big, erroring out.\n", __func__);
733 dev_dbg(dev, "%s Type = 0x%x\n", __func__, rom_desc->Type);
735 /* Skip type 2 record */
736 ttype = rom_desc->Type & 0x0f;
737 if (ttype != I2C_DESC_TYPE_FIRMWARE_BASIC
738 && ttype != I2C_DESC_TYPE_FIRMWARE_AUTO) {
739 /* Read the descriptor data */
740 status = read_rom(serial, start_address +
741 sizeof(struct ti_i2c_desc),
742 rom_desc->Size, buffer);
746 status = valid_csum(rom_desc, buffer);
750 start_address = start_address + sizeof(struct ti_i2c_desc) +
753 } while ((rom_desc->Type != I2C_DESC_TYPE_ION) &&
754 (start_address < TI_MAX_I2C_SIZE));
756 if ((rom_desc->Type != I2C_DESC_TYPE_ION) ||
757 (start_address > TI_MAX_I2C_SIZE))
766 static int get_manuf_info(struct edgeport_serial *serial, __u8 *buffer)
770 struct ti_i2c_desc *rom_desc;
771 struct edge_ti_manuf_descriptor *desc;
772 struct device *dev = &serial->serial->dev->dev;
774 rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL);
776 dev_err(dev, "%s - out of memory\n", __func__);
779 start_address = get_descriptor_addr(serial, I2C_DESC_TYPE_ION,
782 if (!start_address) {
783 dev_dbg(dev, "%s - Edge Descriptor not found in I2C\n", __func__);
788 /* Read the descriptor data */
789 status = read_rom(serial, start_address+sizeof(struct ti_i2c_desc),
790 rom_desc->Size, buffer);
794 status = valid_csum(rom_desc, buffer);
796 desc = (struct edge_ti_manuf_descriptor *)buffer;
797 dev_dbg(dev, "%s - IonConfig 0x%x\n", __func__, desc->IonConfig);
798 dev_dbg(dev, "%s - Version %d\n", __func__, desc->Version);
799 dev_dbg(dev, "%s - Cpu/Board 0x%x\n", __func__, desc->CpuRev_BoardRev);
800 dev_dbg(dev, "%s - NumPorts %d\n", __func__, desc->NumPorts);
801 dev_dbg(dev, "%s - NumVirtualPorts %d\n", __func__, desc->NumVirtualPorts);
802 dev_dbg(dev, "%s - TotalPorts %d\n", __func__, desc->TotalPorts);
809 /* Build firmware header used for firmware update */
810 static int build_i2c_fw_hdr(__u8 *header, struct device *dev)
817 struct ti_i2c_desc *i2c_header;
818 struct ti_i2c_image_header *img_header;
819 struct ti_i2c_firmware_rec *firmware_rec;
820 const struct firmware *fw;
821 const char *fw_name = "edgeport/down3.bin";
823 /* In order to update the I2C firmware we must change the type 2 record
824 * to type 0xF2. This will force the UMP to come up in Boot Mode.
825 * Then while in boot mode, the driver will download the latest
826 * firmware (padded to 15.5k) into the UMP ram. And finally when the
827 * device comes back up in download mode the driver will cause the new
828 * firmware to be copied from the UMP Ram to I2C and the firmware will
829 * update the record type from 0xf2 to 0x02.
832 /* Allocate a 15.5k buffer + 2 bytes for version number
833 * (Firmware Record) */
834 buffer_size = (((1024 * 16) - 512 ) +
835 sizeof(struct ti_i2c_firmware_rec));
837 buffer = kmalloc(buffer_size, GFP_KERNEL);
839 dev_err(dev, "%s - out of memory\n", __func__);
843 // Set entire image of 0xffs
844 memset(buffer, 0xff, buffer_size);
846 err = request_firmware(&fw, fw_name, dev);
848 printk(KERN_ERR "Failed to load image \"%s\" err %d\n",
854 /* Save Download Version Number */
855 OperationalMajorVersion = fw->data[0];
856 OperationalMinorVersion = fw->data[1];
857 OperationalBuildNumber = fw->data[2] | (fw->data[3] << 8);
859 /* Copy version number into firmware record */
860 firmware_rec = (struct ti_i2c_firmware_rec *)buffer;
862 firmware_rec->Ver_Major = OperationalMajorVersion;
863 firmware_rec->Ver_Minor = OperationalMinorVersion;
865 /* Pointer to fw_down memory image */
866 img_header = (struct ti_i2c_image_header *)&fw->data[4];
868 memcpy(buffer + sizeof(struct ti_i2c_firmware_rec),
869 &fw->data[4 + sizeof(struct ti_i2c_image_header)],
870 le16_to_cpu(img_header->Length));
872 release_firmware(fw);
874 for (i=0; i < buffer_size; i++) {
875 cs = (__u8)(cs + buffer[i]);
880 /* Build new header */
881 i2c_header = (struct ti_i2c_desc *)header;
882 firmware_rec = (struct ti_i2c_firmware_rec*)i2c_header->Data;
884 i2c_header->Type = I2C_DESC_TYPE_FIRMWARE_BLANK;
885 i2c_header->Size = (__u16)buffer_size;
886 i2c_header->CheckSum = cs;
887 firmware_rec->Ver_Major = OperationalMajorVersion;
888 firmware_rec->Ver_Minor = OperationalMinorVersion;
893 /* Try to figure out what type of I2c we have */
894 static int i2c_type_bootmode(struct edgeport_serial *serial)
896 struct device *dev = &serial->serial->dev->dev;
900 data = kmalloc(1, GFP_KERNEL);
902 dev_err(dev, "%s - out of memory\n", __func__);
906 /* Try to read type 2 */
907 status = ti_vread_sync(serial->serial->dev, UMPC_MEMORY_READ,
908 DTK_ADDR_SPACE_I2C_TYPE_II, 0, data, 0x01);
910 dev_dbg(dev, "%s - read 2 status error = %d\n", __func__, status);
912 dev_dbg(dev, "%s - read 2 data = 0x%x\n", __func__, *data);
913 if ((!status) && (*data == UMP5152 || *data == UMP3410)) {
914 dev_dbg(dev, "%s - ROM_TYPE_II\n", __func__);
915 serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II;
919 /* Try to read type 3 */
920 status = ti_vread_sync(serial->serial->dev, UMPC_MEMORY_READ,
921 DTK_ADDR_SPACE_I2C_TYPE_III, 0, data, 0x01);
923 dev_dbg(dev, "%s - read 3 status error = %d\n", __func__, status);
925 dev_dbg(dev, "%s - read 2 data = 0x%x\n", __func__, *data);
926 if ((!status) && (*data == UMP5152 || *data == UMP3410)) {
927 dev_dbg(dev, "%s - ROM_TYPE_III\n", __func__);
928 serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_III;
932 dev_dbg(dev, "%s - Unknown\n", __func__);
933 serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II;
940 static int bulk_xfer(struct usb_serial *serial, void *buffer,
941 int length, int *num_sent)
945 status = usb_bulk_msg(serial->dev,
946 usb_sndbulkpipe(serial->dev,
947 serial->port[0]->bulk_out_endpointAddress),
948 buffer, length, num_sent, 1000);
952 /* Download given firmware image to the device (IN BOOT MODE) */
953 static int download_code(struct edgeport_serial *serial, __u8 *image,
961 /* Transfer firmware image */
962 for (pos = 0; pos < image_length; ) {
963 /* Read the next buffer from file */
964 transfer = image_length - pos;
965 if (transfer > EDGE_FW_BULK_MAX_PACKET_SIZE)
966 transfer = EDGE_FW_BULK_MAX_PACKET_SIZE;
969 status = bulk_xfer(serial->serial, &image[pos],
973 /* Advance buffer pointer */
981 static int config_boot_dev(struct usb_device *dev)
986 static int ti_cpu_rev(struct edge_ti_manuf_descriptor *desc)
988 return TI_GET_CPU_REVISION(desc->CpuRev_BoardRev);
992 * DownloadTIFirmware - Download run-time operating firmware to the TI5052
994 * This routine downloads the main operating code into the TI5052, using the
995 * boot code already burned into E2PROM or ROM.
997 static int download_fw(struct edgeport_serial *serial)
999 struct device *dev = &serial->serial->dev->dev;
1002 struct edge_ti_manuf_descriptor *ti_manuf_desc;
1003 struct usb_interface_descriptor *interface;
1004 int download_cur_ver;
1005 int download_new_ver;
1007 /* This routine is entered by both the BOOT mode and the Download mode
1008 * We can determine which code is running by the reading the config
1009 * descriptor and if we have only one bulk pipe it is in boot mode
1011 serial->product_info.hardware_type = HARDWARE_TYPE_TIUMP;
1013 /* Default to type 2 i2c */
1014 serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II;
1016 status = choose_config(serial->serial->dev);
1020 interface = &serial->serial->interface->cur_altsetting->desc;
1022 dev_err(dev, "%s - no interface set, error!\n", __func__);
1027 * Setup initial mode -- the default mode 0 is TI_MODE_CONFIGURING
1028 * if we have more than one endpoint we are definitely in download
1031 if (interface->bNumEndpoints > 1)
1032 serial->product_info.TiMode = TI_MODE_DOWNLOAD;
1034 /* Otherwise we will remain in configuring mode */
1035 serial->product_info.TiMode = TI_MODE_CONFIGURING;
1037 /********************************************************************/
1039 /********************************************************************/
1040 if (serial->product_info.TiMode == TI_MODE_DOWNLOAD) {
1041 struct ti_i2c_desc *rom_desc;
1043 dev_dbg(dev, "%s - RUNNING IN DOWNLOAD MODE\n", __func__);
1045 status = check_i2c_image(serial);
1047 dev_dbg(dev, "%s - DOWNLOAD MODE -- BAD I2C\n", __func__);
1051 /* Validate Hardware version number
1052 * Read Manufacturing Descriptor from TI Based Edgeport
1054 ti_manuf_desc = kmalloc(sizeof(*ti_manuf_desc), GFP_KERNEL);
1055 if (!ti_manuf_desc) {
1056 dev_err(dev, "%s - out of memory.\n", __func__);
1059 status = get_manuf_info(serial, (__u8 *)ti_manuf_desc);
1061 kfree(ti_manuf_desc);
1065 /* Check version number of ION descriptor */
1066 if (!ignore_cpu_rev && ti_cpu_rev(ti_manuf_desc) < 2) {
1067 dev_dbg(dev, "%s - Wrong CPU Rev %d (Must be 2)\n",
1068 __func__, ti_cpu_rev(ti_manuf_desc));
1069 kfree(ti_manuf_desc);
1073 rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL);
1075 dev_err(dev, "%s - out of memory.\n", __func__);
1076 kfree(ti_manuf_desc);
1080 /* Search for type 2 record (firmware record) */
1081 start_address = get_descriptor_addr(serial,
1082 I2C_DESC_TYPE_FIRMWARE_BASIC, rom_desc);
1083 if (start_address != 0) {
1084 struct ti_i2c_firmware_rec *firmware_version;
1087 dev_dbg(dev, "%s - Found Type FIRMWARE (Type 2) record\n", __func__);
1089 firmware_version = kmalloc(sizeof(*firmware_version),
1091 if (!firmware_version) {
1092 dev_err(dev, "%s - out of memory.\n", __func__);
1094 kfree(ti_manuf_desc);
1098 /* Validate version number
1099 * Read the descriptor data
1101 status = read_rom(serial, start_address +
1102 sizeof(struct ti_i2c_desc),
1103 sizeof(struct ti_i2c_firmware_rec),
1104 (__u8 *)firmware_version);
1106 kfree(firmware_version);
1108 kfree(ti_manuf_desc);
1112 /* Check version number of download with current
1114 download_cur_ver = (firmware_version->Ver_Major << 8) +
1115 (firmware_version->Ver_Minor);
1116 download_new_ver = (OperationalMajorVersion << 8) +
1117 (OperationalMinorVersion);
1119 dev_dbg(dev, "%s - >> FW Versions Device %d.%d Driver %d.%d\n",
1120 __func__, firmware_version->Ver_Major,
1121 firmware_version->Ver_Minor,
1122 OperationalMajorVersion,
1123 OperationalMinorVersion);
1125 /* Check if we have an old version in the I2C and
1126 update if necessary */
1127 if (download_cur_ver < download_new_ver) {
1128 dev_dbg(dev, "%s - Update I2C dld from %d.%d to %d.%d\n",
1130 firmware_version->Ver_Major,
1131 firmware_version->Ver_Minor,
1132 OperationalMajorVersion,
1133 OperationalMinorVersion);
1135 record = kmalloc(1, GFP_KERNEL);
1137 dev_err(dev, "%s - out of memory.\n",
1139 kfree(firmware_version);
1141 kfree(ti_manuf_desc);
1144 /* In order to update the I2C firmware we must
1145 * change the type 2 record to type 0xF2. This
1146 * will force the UMP to come up in Boot Mode.
1147 * Then while in boot mode, the driver will
1148 * download the latest firmware (padded to
1149 * 15.5k) into the UMP ram. Finally when the
1150 * device comes back up in download mode the
1151 * driver will cause the new firmware to be
1152 * copied from the UMP Ram to I2C and the
1153 * firmware will update the record type from
1156 *record = I2C_DESC_TYPE_FIRMWARE_BLANK;
1158 /* Change the I2C Firmware record type to
1159 0xf2 to trigger an update */
1160 status = write_rom(serial, start_address,
1161 sizeof(*record), record);
1164 kfree(firmware_version);
1166 kfree(ti_manuf_desc);
1170 /* verify the write -- must do this in order
1171 * for write to complete before we do the
1174 status = read_rom(serial,
1180 kfree(firmware_version);
1182 kfree(ti_manuf_desc);
1186 if (*record != I2C_DESC_TYPE_FIRMWARE_BLANK) {
1187 dev_err(dev, "%s - error resetting device\n", __func__);
1189 kfree(firmware_version);
1191 kfree(ti_manuf_desc);
1195 dev_dbg(dev, "%s - HARDWARE RESET\n", __func__);
1197 /* Reset UMP -- Back to BOOT MODE */
1198 status = ti_vsend_sync(serial->serial->dev,
1199 UMPC_HARDWARE_RESET,
1202 dev_dbg(dev, "%s - HARDWARE RESET return %d\n", __func__, status);
1204 /* return an error on purpose. */
1206 kfree(firmware_version);
1208 kfree(ti_manuf_desc);
1211 kfree(firmware_version);
1213 /* Search for type 0xF2 record (firmware blank record) */
1214 else if ((start_address = get_descriptor_addr(serial, I2C_DESC_TYPE_FIRMWARE_BLANK, rom_desc)) != 0) {
1215 #define HEADER_SIZE (sizeof(struct ti_i2c_desc) + \
1216 sizeof(struct ti_i2c_firmware_rec))
1220 header = kmalloc(HEADER_SIZE, GFP_KERNEL);
1222 dev_err(dev, "%s - out of memory.\n", __func__);
1224 kfree(ti_manuf_desc);
1228 vheader = kmalloc(HEADER_SIZE, GFP_KERNEL);
1230 dev_err(dev, "%s - out of memory.\n", __func__);
1233 kfree(ti_manuf_desc);
1237 dev_dbg(dev, "%s - Found Type BLANK FIRMWARE (Type F2) record\n", __func__);
1240 * In order to update the I2C firmware we must change
1241 * the type 2 record to type 0xF2. This will force the
1242 * UMP to come up in Boot Mode. Then while in boot
1243 * mode, the driver will download the latest firmware
1244 * (padded to 15.5k) into the UMP ram. Finally when the
1245 * device comes back up in download mode the driver
1246 * will cause the new firmware to be copied from the
1247 * UMP Ram to I2C and the firmware will update the
1248 * record type from 0xf2 to 0x02.
1250 status = build_i2c_fw_hdr(header, dev);
1255 kfree(ti_manuf_desc);
1259 /* Update I2C with type 0xf2 record with correct
1260 size and checksum */
1261 status = write_rom(serial,
1269 kfree(ti_manuf_desc);
1273 /* verify the write -- must do this in order for
1274 write to complete before we do the hardware reset */
1275 status = read_rom(serial, start_address,
1276 HEADER_SIZE, vheader);
1279 dev_dbg(dev, "%s - can't read header back\n", __func__);
1283 kfree(ti_manuf_desc);
1286 if (memcmp(vheader, header, HEADER_SIZE)) {
1287 dev_dbg(dev, "%s - write download record failed\n", __func__);
1291 kfree(ti_manuf_desc);
1298 dev_dbg(dev, "%s - Start firmware update\n", __func__);
1300 /* Tell firmware to copy download image into I2C */
1301 status = ti_vsend_sync(serial->serial->dev,
1302 UMPC_COPY_DNLD_TO_I2C, 0, 0, NULL, 0);
1304 dev_dbg(dev, "%s - Update complete 0x%x\n", __func__, status);
1307 "%s - UMPC_COPY_DNLD_TO_I2C failed\n",
1310 kfree(ti_manuf_desc);
1315 // The device is running the download code
1317 kfree(ti_manuf_desc);
1321 /********************************************************************/
1323 /********************************************************************/
1324 dev_dbg(dev, "%s - RUNNING IN BOOT MODE\n", __func__);
1326 /* Configure the TI device so we can use the BULK pipes for download */
1327 status = config_boot_dev(serial->serial->dev);
1331 if (le16_to_cpu(serial->serial->dev->descriptor.idVendor)
1332 != USB_VENDOR_ID_ION) {
1333 dev_dbg(dev, "%s - VID = 0x%x\n", __func__,
1334 le16_to_cpu(serial->serial->dev->descriptor.idVendor));
1335 serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II;
1336 goto stayinbootmode;
1339 /* We have an ION device (I2c Must be programmed)
1340 Determine I2C image type */
1341 if (i2c_type_bootmode(serial))
1342 goto stayinbootmode;
1344 /* Check for ION Vendor ID and that the I2C is valid */
1345 if (!check_i2c_image(serial)) {
1346 struct ti_i2c_image_header *header;
1352 const struct firmware *fw;
1353 const char *fw_name = "edgeport/down3.bin";
1355 /* Validate Hardware version number
1356 * Read Manufacturing Descriptor from TI Based Edgeport
1358 ti_manuf_desc = kmalloc(sizeof(*ti_manuf_desc), GFP_KERNEL);
1359 if (!ti_manuf_desc) {
1360 dev_err(dev, "%s - out of memory.\n", __func__);
1363 status = get_manuf_info(serial, (__u8 *)ti_manuf_desc);
1365 kfree(ti_manuf_desc);
1366 goto stayinbootmode;
1369 /* Check for version 2 */
1370 if (!ignore_cpu_rev && ti_cpu_rev(ti_manuf_desc) < 2) {
1371 dev_dbg(dev, "%s - Wrong CPU Rev %d (Must be 2)\n",
1372 __func__, ti_cpu_rev(ti_manuf_desc));
1373 kfree(ti_manuf_desc);
1374 goto stayinbootmode;
1377 kfree(ti_manuf_desc);
1380 * In order to update the I2C firmware we must change the type
1381 * 2 record to type 0xF2. This will force the UMP to come up
1382 * in Boot Mode. Then while in boot mode, the driver will
1383 * download the latest firmware (padded to 15.5k) into the
1384 * UMP ram. Finally when the device comes back up in download
1385 * mode the driver will cause the new firmware to be copied
1386 * from the UMP Ram to I2C and the firmware will update the
1387 * record type from 0xf2 to 0x02.
1389 * Do we really have to copy the whole firmware image,
1390 * or could we do this in place!
1393 /* Allocate a 15.5k buffer + 3 byte header */
1394 buffer_size = (((1024 * 16) - 512) +
1395 sizeof(struct ti_i2c_image_header));
1396 buffer = kmalloc(buffer_size, GFP_KERNEL);
1398 dev_err(dev, "%s - out of memory\n", __func__);
1402 /* Initialize the buffer to 0xff (pad the buffer) */
1403 memset(buffer, 0xff, buffer_size);
1405 err = request_firmware(&fw, fw_name, dev);
1407 printk(KERN_ERR "Failed to load image \"%s\" err %d\n",
1412 memcpy(buffer, &fw->data[4], fw->size - 4);
1413 release_firmware(fw);
1415 for (i = sizeof(struct ti_i2c_image_header);
1416 i < buffer_size; i++) {
1417 cs = (__u8)(cs + buffer[i]);
1420 header = (struct ti_i2c_image_header *)buffer;
1422 /* update length and checksum after padding */
1423 header->Length = cpu_to_le16((__u16)(buffer_size -
1424 sizeof(struct ti_i2c_image_header)));
1425 header->CheckSum = cs;
1427 /* Download the operational code */
1428 dev_dbg(dev, "%s - Downloading operational code image (TI UMP)\n", __func__);
1429 status = download_code(serial, buffer, buffer_size);
1434 dev_dbg(dev, "%s - Error downloading operational code image\n", __func__);
1438 /* Device will reboot */
1439 serial->product_info.TiMode = TI_MODE_TRANSITIONING;
1441 dev_dbg(dev, "%s - Download successful -- Device rebooting...\n", __func__);
1443 /* return an error on purpose */
1448 /* Eprom is invalid or blank stay in boot mode */
1449 dev_dbg(dev, "%s - STAYING IN BOOT MODE\n", __func__);
1450 serial->product_info.TiMode = TI_MODE_BOOT;
1456 static int ti_do_config(struct edgeport_port *port, int feature, int on)
1458 int port_number = port->port->number - port->port->serial->minor;
1459 on = !!on; /* 1 or 0 not bitmask */
1460 return send_cmd(port->port->serial->dev,
1461 feature, (__u8)(UMPM_UART1_PORT + port_number),
1466 static int restore_mcr(struct edgeport_port *port, __u8 mcr)
1470 dev_dbg(&port->port->dev, "%s - %x\n", __func__, mcr);
1472 status = ti_do_config(port, UMPC_SET_CLR_DTR, mcr & MCR_DTR);
1475 status = ti_do_config(port, UMPC_SET_CLR_RTS, mcr & MCR_RTS);
1478 return ti_do_config(port, UMPC_SET_CLR_LOOPBACK, mcr & MCR_LOOPBACK);
1481 /* Convert TI LSR to standard UART flags */
1482 static __u8 map_line_status(__u8 ti_lsr)
1486 #define MAP_FLAG(flagUmp, flagUart) \
1487 if (ti_lsr & flagUmp) \
1490 MAP_FLAG(UMP_UART_LSR_OV_MASK, LSR_OVER_ERR) /* overrun */
1491 MAP_FLAG(UMP_UART_LSR_PE_MASK, LSR_PAR_ERR) /* parity error */
1492 MAP_FLAG(UMP_UART_LSR_FE_MASK, LSR_FRM_ERR) /* framing error */
1493 MAP_FLAG(UMP_UART_LSR_BR_MASK, LSR_BREAK) /* break detected */
1494 MAP_FLAG(UMP_UART_LSR_RX_MASK, LSR_RX_AVAIL) /* rx data available */
1495 MAP_FLAG(UMP_UART_LSR_TX_MASK, LSR_TX_EMPTY) /* tx hold reg empty */
1502 static void handle_new_msr(struct edgeport_port *edge_port, __u8 msr)
1504 struct async_icount *icount;
1505 struct tty_struct *tty;
1507 dev_dbg(&edge_port->port->dev, "%s - %02x\n", __func__, msr);
1509 if (msr & (EDGEPORT_MSR_DELTA_CTS | EDGEPORT_MSR_DELTA_DSR |
1510 EDGEPORT_MSR_DELTA_RI | EDGEPORT_MSR_DELTA_CD)) {
1511 icount = &edge_port->icount;
1513 /* update input line counters */
1514 if (msr & EDGEPORT_MSR_DELTA_CTS)
1516 if (msr & EDGEPORT_MSR_DELTA_DSR)
1518 if (msr & EDGEPORT_MSR_DELTA_CD)
1520 if (msr & EDGEPORT_MSR_DELTA_RI)
1522 wake_up_interruptible(&edge_port->delta_msr_wait);
1525 /* Save the new modem status */
1526 edge_port->shadow_msr = msr & 0xf0;
1528 tty = tty_port_tty_get(&edge_port->port->port);
1529 /* handle CTS flow control */
1530 if (tty && C_CRTSCTS(tty)) {
1531 if (msr & EDGEPORT_MSR_CTS) {
1532 tty->hw_stopped = 0;
1535 tty->hw_stopped = 1;
1541 static void handle_new_lsr(struct edgeport_port *edge_port, int lsr_data,
1542 __u8 lsr, __u8 data)
1544 struct async_icount *icount;
1545 __u8 new_lsr = (__u8)(lsr & (__u8)(LSR_OVER_ERR | LSR_PAR_ERR |
1546 LSR_FRM_ERR | LSR_BREAK));
1547 struct tty_struct *tty;
1549 dev_dbg(&edge_port->port->dev, "%s - %02x\n", __func__, new_lsr);
1551 edge_port->shadow_lsr = lsr;
1553 if (new_lsr & LSR_BREAK)
1555 * Parity and Framing errors only count if they
1556 * occur exclusive of a break being received.
1558 new_lsr &= (__u8)(LSR_OVER_ERR | LSR_BREAK);
1560 /* Place LSR data byte into Rx buffer */
1562 tty = tty_port_tty_get(&edge_port->port->port);
1564 edge_tty_recv(&edge_port->port->dev, tty, &data, 1);
1569 /* update input line counters */
1570 icount = &edge_port->icount;
1571 if (new_lsr & LSR_BREAK)
1573 if (new_lsr & LSR_OVER_ERR)
1575 if (new_lsr & LSR_PAR_ERR)
1577 if (new_lsr & LSR_FRM_ERR)
1582 static void edge_interrupt_callback(struct urb *urb)
1584 struct edgeport_serial *edge_serial = urb->context;
1585 struct usb_serial_port *port;
1586 struct edgeport_port *edge_port;
1588 unsigned char *data = urb->transfer_buffer;
1589 int length = urb->actual_length;
1595 int status = urb->status;
1604 /* this urb is terminated, clean up */
1605 dev_dbg(&urb->dev->dev, "%s - urb shutting down with status: %d\n",
1609 dev_err(&urb->dev->dev, "%s - nonzero urb status received: "
1610 "%d\n", __func__, status);
1615 dev_dbg(&urb->dev->dev, "%s - no data in urb\n", __func__);
1619 dev = &edge_serial->serial->dev->dev;
1620 usb_serial_debug_data(dev, __func__, length, data);
1623 dev_dbg(dev, "%s - expecting packet of size 2, got %d\n", __func__, length);
1627 port_number = TIUMP_GET_PORT_FROM_CODE(data[0]);
1628 function = TIUMP_GET_FUNC_FROM_CODE(data[0]);
1629 dev_dbg(dev, "%s - port_number %d, function %d, info 0x%x\n", __func__,
1630 port_number, function, data[1]);
1631 port = edge_serial->serial->port[port_number];
1632 edge_port = usb_get_serial_port_data(port);
1634 dev_dbg(dev, "%s - edge_port not found\n", __func__);
1638 case TIUMP_INTERRUPT_CODE_LSR:
1639 lsr = map_line_status(data[1]);
1640 if (lsr & UMP_UART_LSR_DATA_MASK) {
1641 /* Save the LSR event for bulk read
1642 completion routine */
1643 dev_dbg(dev, "%s - LSR Event Port %u LSR Status = %02x\n",
1644 __func__, port_number, lsr);
1645 edge_port->lsr_event = 1;
1646 edge_port->lsr_mask = lsr;
1648 dev_dbg(dev, "%s - ===== Port %d LSR Status = %02x ======\n",
1649 __func__, port_number, lsr);
1650 handle_new_lsr(edge_port, 0, lsr, 0);
1654 case TIUMP_INTERRUPT_CODE_MSR: /* MSR */
1655 /* Copy MSR from UMP */
1657 dev_dbg(dev, "%s - ===== Port %u MSR Status = %02x ======\n",
1658 __func__, port_number, msr);
1659 handle_new_msr(edge_port, msr);
1663 dev_err(&urb->dev->dev,
1664 "%s - Unknown Interrupt code from UMP %x\n",
1671 retval = usb_submit_urb(urb, GFP_ATOMIC);
1673 dev_err(&urb->dev->dev,
1674 "%s - usb_submit_urb failed with result %d\n",
1678 static void edge_bulk_in_callback(struct urb *urb)
1680 struct edgeport_port *edge_port = urb->context;
1681 struct device *dev = &edge_port->port->dev;
1682 unsigned char *data = urb->transfer_buffer;
1683 struct tty_struct *tty;
1686 int status = urb->status;
1695 /* this urb is terminated, clean up */
1696 dev_dbg(&urb->dev->dev, "%s - urb shutting down with status: %d\n", __func__, status);
1699 dev_err(&urb->dev->dev, "%s - nonzero read bulk status received: %d\n", __func__, status);
1702 if (status == -EPIPE)
1706 dev_err(&urb->dev->dev, "%s - stopping read!\n", __func__);
1710 port_number = edge_port->port->number - edge_port->port->serial->minor;
1712 if (edge_port->lsr_event) {
1713 edge_port->lsr_event = 0;
1714 dev_dbg(dev, "%s ===== Port %u LSR Status = %02x, Data = %02x ======\n",
1715 __func__, port_number, edge_port->lsr_mask, *data);
1716 handle_new_lsr(edge_port, 1, edge_port->lsr_mask, *data);
1717 /* Adjust buffer length/pointer */
1718 --urb->actual_length;
1722 tty = tty_port_tty_get(&edge_port->port->port);
1723 if (tty && urb->actual_length) {
1724 usb_serial_debug_data(dev, __func__, urb->actual_length, data);
1725 if (edge_port->close_pending)
1726 dev_dbg(dev, "%s - close pending, dropping data on the floor\n",
1729 edge_tty_recv(dev, tty, data, urb->actual_length);
1730 edge_port->icount.rx += urb->actual_length;
1735 /* continue read unless stopped */
1736 spin_lock(&edge_port->ep_lock);
1737 if (edge_port->ep_read_urb_state == EDGE_READ_URB_RUNNING)
1738 retval = usb_submit_urb(urb, GFP_ATOMIC);
1739 else if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPING)
1740 edge_port->ep_read_urb_state = EDGE_READ_URB_STOPPED;
1742 spin_unlock(&edge_port->ep_lock);
1744 dev_err(dev, "%s - usb_submit_urb failed with result %d\n", __func__, retval);
1747 static void edge_tty_recv(struct device *dev, struct tty_struct *tty,
1748 unsigned char *data, int length)
1752 queued = tty_insert_flip_string(tty, data, length);
1753 if (queued < length)
1754 dev_err(dev, "%s - dropping data, %d bytes lost\n",
1755 __func__, length - queued);
1756 tty_flip_buffer_push(tty);
1759 static void edge_bulk_out_callback(struct urb *urb)
1761 struct usb_serial_port *port = urb->context;
1762 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
1763 int status = urb->status;
1764 struct tty_struct *tty;
1766 edge_port->ep_write_urb_in_use = 0;
1775 /* this urb is terminated, clean up */
1776 dev_dbg(&urb->dev->dev, "%s - urb shutting down with status: %d\n",
1780 dev_err_console(port, "%s - nonzero write bulk status "
1781 "received: %d\n", __func__, status);
1784 /* send any buffered data */
1785 tty = tty_port_tty_get(&port->port);
1790 static int edge_open(struct tty_struct *tty, struct usb_serial_port *port)
1792 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
1793 struct edgeport_serial *edge_serial;
1794 struct usb_device *dev;
1799 u8 transaction_timeout;
1801 if (edge_port == NULL)
1804 port_number = port->number - port->serial->minor;
1805 switch (port_number) {
1807 edge_port->uart_base = UMPMEM_BASE_UART1;
1808 edge_port->dma_address = UMPD_OEDB1_ADDRESS;
1811 edge_port->uart_base = UMPMEM_BASE_UART2;
1812 edge_port->dma_address = UMPD_OEDB2_ADDRESS;
1815 dev_err(&port->dev, "Unknown port number!!!\n");
1819 dev_dbg(&port->dev, "%s - port_number = %d, uart_base = %04x, dma_address = %04x\n",
1820 __func__, port_number, edge_port->uart_base, edge_port->dma_address);
1822 dev = port->serial->dev;
1824 memset(&(edge_port->icount), 0x00, sizeof(edge_port->icount));
1825 init_waitqueue_head(&edge_port->delta_msr_wait);
1827 /* turn off loopback */
1828 status = ti_do_config(edge_port, UMPC_SET_CLR_LOOPBACK, 0);
1831 "%s - cannot send clear loopback command, %d\n",
1836 /* set up the port settings */
1838 edge_set_termios(tty, port, tty->termios);
1840 /* open up the port */
1842 /* milliseconds to timeout for DMA transfer */
1843 transaction_timeout = 2;
1845 edge_port->ump_read_timeout =
1846 max(20, ((transaction_timeout * 3) / 2));
1848 /* milliseconds to timeout for DMA transfer */
1849 open_settings = (u8)(UMP_DMA_MODE_CONTINOUS |
1850 UMP_PIPE_TRANS_TIMEOUT_ENA |
1851 (transaction_timeout << 2));
1853 dev_dbg(&port->dev, "%s - Sending UMPC_OPEN_PORT\n", __func__);
1855 /* Tell TI to open and start the port */
1856 status = send_cmd(dev, UMPC_OPEN_PORT,
1857 (u8)(UMPM_UART1_PORT + port_number), open_settings, NULL, 0);
1859 dev_err(&port->dev, "%s - cannot send open command, %d\n",
1864 /* Start the DMA? */
1865 status = send_cmd(dev, UMPC_START_PORT,
1866 (u8)(UMPM_UART1_PORT + port_number), 0, NULL, 0);
1868 dev_err(&port->dev, "%s - cannot send start DMA command, %d\n",
1873 /* Clear TX and RX buffers in UMP */
1874 status = purge_port(port, UMP_PORT_DIR_OUT | UMP_PORT_DIR_IN);
1877 "%s - cannot send clear buffers command, %d\n",
1882 /* Read Initial MSR */
1883 status = ti_vread_sync(dev, UMPC_READ_MSR, 0,
1884 (__u16)(UMPM_UART1_PORT + port_number),
1885 &edge_port->shadow_msr, 1);
1887 dev_err(&port->dev, "%s - cannot send read MSR command, %d\n",
1892 dev_dbg(&port->dev, "ShadowMSR 0x%X\n", edge_port->shadow_msr);
1894 /* Set Initial MCR */
1895 edge_port->shadow_mcr = MCR_RTS | MCR_DTR;
1896 dev_dbg(&port->dev, "ShadowMCR 0x%X\n", edge_port->shadow_mcr);
1898 edge_serial = edge_port->edge_serial;
1899 if (mutex_lock_interruptible(&edge_serial->es_lock))
1900 return -ERESTARTSYS;
1901 if (edge_serial->num_ports_open == 0) {
1902 /* we are the first port to open, post the interrupt urb */
1903 urb = edge_serial->serial->port[0]->interrupt_in_urb;
1906 "%s - no interrupt urb present, exiting\n",
1909 goto release_es_lock;
1911 urb->context = edge_serial;
1912 status = usb_submit_urb(urb, GFP_KERNEL);
1915 "%s - usb_submit_urb failed with value %d\n",
1917 goto release_es_lock;
1922 * reset the data toggle on the bulk endpoints to work around bug in
1923 * host controllers where things get out of sync some times
1925 usb_clear_halt(dev, port->write_urb->pipe);
1926 usb_clear_halt(dev, port->read_urb->pipe);
1928 /* start up our bulk read urb */
1929 urb = port->read_urb;
1931 dev_err(&port->dev, "%s - no read urb present, exiting\n",
1934 goto unlink_int_urb;
1936 edge_port->ep_read_urb_state = EDGE_READ_URB_RUNNING;
1937 urb->context = edge_port;
1938 status = usb_submit_urb(urb, GFP_KERNEL);
1941 "%s - read bulk usb_submit_urb failed with value %d\n",
1943 goto unlink_int_urb;
1946 ++edge_serial->num_ports_open;
1948 goto release_es_lock;
1951 if (edge_port->edge_serial->num_ports_open == 0)
1952 usb_kill_urb(port->serial->port[0]->interrupt_in_urb);
1954 mutex_unlock(&edge_serial->es_lock);
1958 static void edge_close(struct usb_serial_port *port)
1960 struct edgeport_serial *edge_serial;
1961 struct edgeport_port *edge_port;
1962 struct usb_serial *serial = port->serial;
1965 edge_serial = usb_get_serial_data(port->serial);
1966 edge_port = usb_get_serial_port_data(port);
1967 if (edge_serial == NULL || edge_port == NULL)
1970 /* The bulkreadcompletion routine will check
1971 * this flag and dump add read data */
1972 edge_port->close_pending = 1;
1974 /* chase the port close and flush */
1975 chase_port(edge_port, (HZ * closing_wait) / 100, 1);
1977 usb_kill_urb(port->read_urb);
1978 usb_kill_urb(port->write_urb);
1979 edge_port->ep_write_urb_in_use = 0;
1981 /* assuming we can still talk to the device,
1982 * send a close port command to it */
1983 dev_dbg(&port->dev, "%s - send umpc_close_port\n", __func__);
1984 port_number = port->number - port->serial->minor;
1986 mutex_lock(&serial->disc_mutex);
1987 if (!serial->disconnected) {
1988 send_cmd(serial->dev,
1990 (__u8)(UMPM_UART1_PORT + port_number),
1995 mutex_unlock(&serial->disc_mutex);
1997 mutex_lock(&edge_serial->es_lock);
1998 --edge_port->edge_serial->num_ports_open;
1999 if (edge_port->edge_serial->num_ports_open <= 0) {
2000 /* last port is now closed, let's shut down our interrupt urb */
2001 usb_kill_urb(port->serial->port[0]->interrupt_in_urb);
2002 edge_port->edge_serial->num_ports_open = 0;
2004 mutex_unlock(&edge_serial->es_lock);
2005 edge_port->close_pending = 0;
2008 static int edge_write(struct tty_struct *tty, struct usb_serial_port *port,
2009 const unsigned char *data, int count)
2011 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
2014 dev_dbg(&port->dev, "%s - write request of 0 bytes\n", __func__);
2018 if (edge_port == NULL)
2020 if (edge_port->close_pending == 1)
2023 count = kfifo_in_locked(&edge_port->write_fifo, data, count,
2024 &edge_port->ep_lock);
2030 static void edge_send(struct tty_struct *tty)
2032 struct usb_serial_port *port = tty->driver_data;
2034 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
2035 unsigned long flags;
2037 spin_lock_irqsave(&edge_port->ep_lock, flags);
2039 if (edge_port->ep_write_urb_in_use) {
2040 spin_unlock_irqrestore(&edge_port->ep_lock, flags);
2044 count = kfifo_out(&edge_port->write_fifo,
2045 port->write_urb->transfer_buffer,
2046 port->bulk_out_size);
2049 spin_unlock_irqrestore(&edge_port->ep_lock, flags);
2053 edge_port->ep_write_urb_in_use = 1;
2055 spin_unlock_irqrestore(&edge_port->ep_lock, flags);
2057 usb_serial_debug_data(&port->dev, __func__, count, port->write_urb->transfer_buffer);
2059 /* set up our urb */
2060 port->write_urb->transfer_buffer_length = count;
2062 /* send the data out the bulk port */
2063 result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
2065 dev_err_console(port,
2066 "%s - failed submitting write urb, error %d\n",
2068 edge_port->ep_write_urb_in_use = 0;
2069 /* TODO: reschedule edge_send */
2071 edge_port->icount.tx += count;
2073 /* wakeup any process waiting for writes to complete */
2074 /* there is now more room in the buffer for new writes */
2079 static int edge_write_room(struct tty_struct *tty)
2081 struct usb_serial_port *port = tty->driver_data;
2082 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
2084 unsigned long flags;
2086 if (edge_port == NULL)
2088 if (edge_port->close_pending == 1)
2091 spin_lock_irqsave(&edge_port->ep_lock, flags);
2092 room = kfifo_avail(&edge_port->write_fifo);
2093 spin_unlock_irqrestore(&edge_port->ep_lock, flags);
2095 dev_dbg(&port->dev, "%s - returns %d\n", __func__, room);
2099 static int edge_chars_in_buffer(struct tty_struct *tty)
2101 struct usb_serial_port *port = tty->driver_data;
2102 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
2104 unsigned long flags;
2106 if (edge_port == NULL)
2108 if (edge_port->close_pending == 1)
2111 spin_lock_irqsave(&edge_port->ep_lock, flags);
2112 chars = kfifo_len(&edge_port->write_fifo);
2113 spin_unlock_irqrestore(&edge_port->ep_lock, flags);
2115 dev_dbg(&port->dev, "%s - returns %d\n", __func__, chars);
2119 static void edge_throttle(struct tty_struct *tty)
2121 struct usb_serial_port *port = tty->driver_data;
2122 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
2125 if (edge_port == NULL)
2128 /* if we are implementing XON/XOFF, send the stop character */
2130 unsigned char stop_char = STOP_CHAR(tty);
2131 status = edge_write(tty, port, &stop_char, 1);
2133 dev_err(&port->dev, "%s - failed to write stop character, %d\n", __func__, status);
2137 /* if we are implementing RTS/CTS, stop reads */
2138 /* and the Edgeport will clear the RTS line */
2140 stop_read(edge_port);
2144 static void edge_unthrottle(struct tty_struct *tty)
2146 struct usb_serial_port *port = tty->driver_data;
2147 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
2150 if (edge_port == NULL)
2153 /* if we are implementing XON/XOFF, send the start character */
2155 unsigned char start_char = START_CHAR(tty);
2156 status = edge_write(tty, port, &start_char, 1);
2158 dev_err(&port->dev, "%s - failed to write start character, %d\n", __func__, status);
2161 /* if we are implementing RTS/CTS, restart reads */
2162 /* are the Edgeport will assert the RTS line */
2163 if (C_CRTSCTS(tty)) {
2164 status = restart_read(edge_port);
2167 "%s - read bulk usb_submit_urb failed: %d\n",
2173 static void stop_read(struct edgeport_port *edge_port)
2175 unsigned long flags;
2177 spin_lock_irqsave(&edge_port->ep_lock, flags);
2179 if (edge_port->ep_read_urb_state == EDGE_READ_URB_RUNNING)
2180 edge_port->ep_read_urb_state = EDGE_READ_URB_STOPPING;
2181 edge_port->shadow_mcr &= ~MCR_RTS;
2183 spin_unlock_irqrestore(&edge_port->ep_lock, flags);
2186 static int restart_read(struct edgeport_port *edge_port)
2190 unsigned long flags;
2192 spin_lock_irqsave(&edge_port->ep_lock, flags);
2194 if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPED) {
2195 urb = edge_port->port->read_urb;
2196 status = usb_submit_urb(urb, GFP_ATOMIC);
2198 edge_port->ep_read_urb_state = EDGE_READ_URB_RUNNING;
2199 edge_port->shadow_mcr |= MCR_RTS;
2201 spin_unlock_irqrestore(&edge_port->ep_lock, flags);
2206 static void change_port_settings(struct tty_struct *tty,
2207 struct edgeport_port *edge_port, struct ktermios *old_termios)
2209 struct device *dev = &edge_port->port->dev;
2210 struct ump_uart_config *config;
2214 int port_number = edge_port->port->number -
2215 edge_port->port->serial->minor;
2217 dev_dbg(dev, "%s - port %d\n", __func__, edge_port->port->number);
2219 config = kmalloc (sizeof (*config), GFP_KERNEL);
2221 *tty->termios = *old_termios;
2222 dev_err(dev, "%s - out of memory\n", __func__);
2226 cflag = tty->termios->c_cflag;
2230 /* These flags must be set */
2231 config->wFlags |= UMP_MASK_UART_FLAGS_RECEIVE_MS_INT;
2232 config->wFlags |= UMP_MASK_UART_FLAGS_AUTO_START_ON_ERR;
2233 config->bUartMode = (__u8)(edge_port->bUartMode);
2235 switch (cflag & CSIZE) {
2237 config->bDataBits = UMP_UART_CHAR5BITS;
2238 dev_dbg(dev, "%s - data bits = 5\n", __func__);
2241 config->bDataBits = UMP_UART_CHAR6BITS;
2242 dev_dbg(dev, "%s - data bits = 6\n", __func__);
2245 config->bDataBits = UMP_UART_CHAR7BITS;
2246 dev_dbg(dev, "%s - data bits = 7\n", __func__);
2250 config->bDataBits = UMP_UART_CHAR8BITS;
2251 dev_dbg(dev, "%s - data bits = 8\n", __func__);
2255 if (cflag & PARENB) {
2256 if (cflag & PARODD) {
2257 config->wFlags |= UMP_MASK_UART_FLAGS_PARITY;
2258 config->bParity = UMP_UART_ODDPARITY;
2259 dev_dbg(dev, "%s - parity = odd\n", __func__);
2261 config->wFlags |= UMP_MASK_UART_FLAGS_PARITY;
2262 config->bParity = UMP_UART_EVENPARITY;
2263 dev_dbg(dev, "%s - parity = even\n", __func__);
2266 config->bParity = UMP_UART_NOPARITY;
2267 dev_dbg(dev, "%s - parity = none\n", __func__);
2270 if (cflag & CSTOPB) {
2271 config->bStopBits = UMP_UART_STOPBIT2;
2272 dev_dbg(dev, "%s - stop bits = 2\n", __func__);
2274 config->bStopBits = UMP_UART_STOPBIT1;
2275 dev_dbg(dev, "%s - stop bits = 1\n", __func__);
2278 /* figure out the flow control settings */
2279 if (cflag & CRTSCTS) {
2280 config->wFlags |= UMP_MASK_UART_FLAGS_OUT_X_CTS_FLOW;
2281 config->wFlags |= UMP_MASK_UART_FLAGS_RTS_FLOW;
2282 dev_dbg(dev, "%s - RTS/CTS is enabled\n", __func__);
2284 dev_dbg(dev, "%s - RTS/CTS is disabled\n", __func__);
2285 tty->hw_stopped = 0;
2286 restart_read(edge_port);
2289 /* if we are implementing XON/XOFF, set the start and stop
2290 character in the device */
2291 config->cXon = START_CHAR(tty);
2292 config->cXoff = STOP_CHAR(tty);
2294 /* if we are implementing INBOUND XON/XOFF */
2296 config->wFlags |= UMP_MASK_UART_FLAGS_IN_X;
2297 dev_dbg(dev, "%s - INBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x\n",
2298 __func__, config->cXon, config->cXoff);
2300 dev_dbg(dev, "%s - INBOUND XON/XOFF is disabled\n", __func__);
2302 /* if we are implementing OUTBOUND XON/XOFF */
2304 config->wFlags |= UMP_MASK_UART_FLAGS_OUT_X;
2305 dev_dbg(dev, "%s - OUTBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x\n",
2306 __func__, config->cXon, config->cXoff);
2308 dev_dbg(dev, "%s - OUTBOUND XON/XOFF is disabled\n", __func__);
2310 tty->termios->c_cflag &= ~CMSPAR;
2312 /* Round the baud rate */
2313 baud = tty_get_baud_rate(tty);
2315 /* pick a default, any default... */
2318 tty_encode_baud_rate(tty, baud, baud);
2320 edge_port->baud_rate = baud;
2321 config->wBaudRate = (__u16)((461550L + baud/2) / baud);
2323 /* FIXME: Recompute actual baud from divisor here */
2325 dev_dbg(dev, "%s - baud rate = %d, wBaudRate = %d\n", __func__, baud, config->wBaudRate);
2327 dev_dbg(dev, "wBaudRate: %d\n", (int)(461550L / config->wBaudRate));
2328 dev_dbg(dev, "wFlags: 0x%x\n", config->wFlags);
2329 dev_dbg(dev, "bDataBits: %d\n", config->bDataBits);
2330 dev_dbg(dev, "bParity: %d\n", config->bParity);
2331 dev_dbg(dev, "bStopBits: %d\n", config->bStopBits);
2332 dev_dbg(dev, "cXon: %d\n", config->cXon);
2333 dev_dbg(dev, "cXoff: %d\n", config->cXoff);
2334 dev_dbg(dev, "bUartMode: %d\n", config->bUartMode);
2336 /* move the word values into big endian mode */
2337 cpu_to_be16s(&config->wFlags);
2338 cpu_to_be16s(&config->wBaudRate);
2340 status = send_cmd(edge_port->port->serial->dev, UMPC_SET_CONFIG,
2341 (__u8)(UMPM_UART1_PORT + port_number),
2342 0, (__u8 *)config, sizeof(*config));
2344 dev_dbg(dev, "%s - error %d when trying to write config to device\n",
2349 static void edge_set_termios(struct tty_struct *tty,
2350 struct usb_serial_port *port, struct ktermios *old_termios)
2352 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
2355 cflag = tty->termios->c_cflag;
2357 dev_dbg(&port->dev, "%s - clfag %08x iflag %08x\n", __func__,
2358 tty->termios->c_cflag, tty->termios->c_iflag);
2359 dev_dbg(&port->dev, "%s - old clfag %08x old iflag %08x\n", __func__,
2360 old_termios->c_cflag, old_termios->c_iflag);
2361 dev_dbg(&port->dev, "%s - port %d\n", __func__, port->number);
2363 if (edge_port == NULL)
2365 /* change the port settings to the new ones specified */
2366 change_port_settings(tty, edge_port, old_termios);
2369 static int edge_tiocmset(struct tty_struct *tty,
2370 unsigned int set, unsigned int clear)
2372 struct usb_serial_port *port = tty->driver_data;
2373 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
2375 unsigned long flags;
2377 spin_lock_irqsave(&edge_port->ep_lock, flags);
2378 mcr = edge_port->shadow_mcr;
2379 if (set & TIOCM_RTS)
2381 if (set & TIOCM_DTR)
2383 if (set & TIOCM_LOOP)
2384 mcr |= MCR_LOOPBACK;
2386 if (clear & TIOCM_RTS)
2388 if (clear & TIOCM_DTR)
2390 if (clear & TIOCM_LOOP)
2391 mcr &= ~MCR_LOOPBACK;
2393 edge_port->shadow_mcr = mcr;
2394 spin_unlock_irqrestore(&edge_port->ep_lock, flags);
2396 restore_mcr(edge_port, mcr);
2400 static int edge_tiocmget(struct tty_struct *tty)
2402 struct usb_serial_port *port = tty->driver_data;
2403 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
2404 unsigned int result = 0;
2407 unsigned long flags;
2409 spin_lock_irqsave(&edge_port->ep_lock, flags);
2411 msr = edge_port->shadow_msr;
2412 mcr = edge_port->shadow_mcr;
2413 result = ((mcr & MCR_DTR) ? TIOCM_DTR: 0) /* 0x002 */
2414 | ((mcr & MCR_RTS) ? TIOCM_RTS: 0) /* 0x004 */
2415 | ((msr & EDGEPORT_MSR_CTS) ? TIOCM_CTS: 0) /* 0x020 */
2416 | ((msr & EDGEPORT_MSR_CD) ? TIOCM_CAR: 0) /* 0x040 */
2417 | ((msr & EDGEPORT_MSR_RI) ? TIOCM_RI: 0) /* 0x080 */
2418 | ((msr & EDGEPORT_MSR_DSR) ? TIOCM_DSR: 0); /* 0x100 */
2421 dev_dbg(&port->dev, "%s -- %x\n", __func__, result);
2422 spin_unlock_irqrestore(&edge_port->ep_lock, flags);
2427 static int edge_get_icount(struct tty_struct *tty,
2428 struct serial_icounter_struct *icount)
2430 struct usb_serial_port *port = tty->driver_data;
2431 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
2432 struct async_icount *ic = &edge_port->icount;
2434 icount->cts = ic->cts;
2435 icount->dsr = ic->dsr;
2436 icount->rng = ic->rng;
2437 icount->dcd = ic->dcd;
2438 icount->tx = ic->tx;
2439 icount->rx = ic->rx;
2440 icount->frame = ic->frame;
2441 icount->parity = ic->parity;
2442 icount->overrun = ic->overrun;
2443 icount->brk = ic->brk;
2444 icount->buf_overrun = ic->buf_overrun;
2448 static int get_serial_info(struct edgeport_port *edge_port,
2449 struct serial_struct __user *retinfo)
2451 struct serial_struct tmp;
2456 memset(&tmp, 0, sizeof(tmp));
2458 tmp.type = PORT_16550A;
2459 tmp.line = edge_port->port->serial->minor;
2460 tmp.port = edge_port->port->number;
2462 tmp.flags = ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ;
2463 tmp.xmit_fifo_size = edge_port->port->bulk_out_size;
2464 tmp.baud_base = 9600;
2465 tmp.close_delay = 5*HZ;
2466 tmp.closing_wait = closing_wait;
2468 if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
2473 static int edge_ioctl(struct tty_struct *tty,
2474 unsigned int cmd, unsigned long arg)
2476 struct usb_serial_port *port = tty->driver_data;
2477 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
2478 struct async_icount cnow;
2479 struct async_icount cprev;
2481 dev_dbg(&port->dev, "%s - port %d, cmd = 0x%x\n", __func__, port->number, cmd);
2485 dev_dbg(&port->dev, "%s - TIOCGSERIAL\n", __func__);
2486 return get_serial_info(edge_port,
2487 (struct serial_struct __user *) arg);
2489 dev_dbg(&port->dev, "%s - TIOCMIWAIT\n", __func__);
2490 cprev = edge_port->icount;
2492 interruptible_sleep_on(&edge_port->delta_msr_wait);
2493 /* see if a signal did it */
2494 if (signal_pending(current))
2495 return -ERESTARTSYS;
2496 cnow = edge_port->icount;
2497 if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr &&
2498 cnow.dcd == cprev.dcd && cnow.cts == cprev.cts)
2499 return -EIO; /* no change => error */
2500 if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) ||
2501 ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) ||
2502 ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) ||
2503 ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts))) {
2511 return -ENOIOCTLCMD;
2514 static void edge_break(struct tty_struct *tty, int break_state)
2516 struct usb_serial_port *port = tty->driver_data;
2517 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
2519 int bv = 0; /* Off */
2521 /* chase the port close */
2522 chase_port(edge_port, 0, 0);
2524 if (break_state == -1)
2526 status = ti_do_config(edge_port, UMPC_SET_CLR_BREAK, bv);
2528 dev_dbg(&port->dev, "%s - error %d sending break set/clear command.\n",
2532 static int edge_startup(struct usb_serial *serial)
2534 struct edgeport_serial *edge_serial;
2535 struct edgeport_port *edge_port;
2536 struct usb_device *dev;
2542 /* create our private serial structure */
2543 edge_serial = kzalloc(sizeof(struct edgeport_serial), GFP_KERNEL);
2544 if (edge_serial == NULL) {
2545 dev_err(&serial->dev->dev, "%s - Out of memory\n", __func__);
2548 mutex_init(&edge_serial->es_lock);
2549 edge_serial->serial = serial;
2550 usb_set_serial_data(serial, edge_serial);
2552 status = download_fw(edge_serial);
2558 /* set up our port private structures */
2559 for (i = 0; i < serial->num_ports; ++i) {
2560 edge_port = kzalloc(sizeof(struct edgeport_port), GFP_KERNEL);
2561 if (edge_port == NULL) {
2562 dev_err(&serial->dev->dev, "%s - Out of memory\n",
2566 spin_lock_init(&edge_port->ep_lock);
2567 if (kfifo_alloc(&edge_port->write_fifo, EDGE_OUT_BUF_SIZE,
2569 dev_err(&serial->dev->dev, "%s - Out of memory\n",
2574 edge_port->port = serial->port[i];
2575 edge_port->edge_serial = edge_serial;
2576 usb_set_serial_port_data(serial->port[i], edge_port);
2577 edge_port->bUartMode = default_uart_mode;
2583 for (--i; i >= 0; --i) {
2584 edge_port = usb_get_serial_port_data(serial->port[i]);
2585 kfifo_free(&edge_port->write_fifo);
2587 usb_set_serial_port_data(serial->port[i], NULL);
2590 usb_set_serial_data(serial, NULL);
2594 static void edge_disconnect(struct usb_serial *serial)
2598 static void edge_release(struct usb_serial *serial)
2601 struct edgeport_port *edge_port;
2603 for (i = 0; i < serial->num_ports; ++i) {
2604 edge_port = usb_get_serial_port_data(serial->port[i]);
2605 kfifo_free(&edge_port->write_fifo);
2608 kfree(usb_get_serial_data(serial));
2612 /* Sysfs Attributes */
2614 static ssize_t show_uart_mode(struct device *dev,
2615 struct device_attribute *attr, char *buf)
2617 struct usb_serial_port *port = to_usb_serial_port(dev);
2618 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
2620 return sprintf(buf, "%d\n", edge_port->bUartMode);
2623 static ssize_t store_uart_mode(struct device *dev,
2624 struct device_attribute *attr, const char *valbuf, size_t count)
2626 struct usb_serial_port *port = to_usb_serial_port(dev);
2627 struct edgeport_port *edge_port = usb_get_serial_port_data(port);
2628 unsigned int v = simple_strtoul(valbuf, NULL, 0);
2630 dev_dbg(dev, "%s: setting uart_mode = %d\n", __func__, v);
2633 edge_port->bUartMode = v;
2635 dev_err(dev, "%s - uart_mode %d is invalid\n", __func__, v);
2640 static DEVICE_ATTR(uart_mode, S_IWUSR | S_IRUGO, show_uart_mode,
2643 static int edge_create_sysfs_attrs(struct usb_serial_port *port)
2645 return device_create_file(&port->dev, &dev_attr_uart_mode);
2648 static int edge_remove_sysfs_attrs(struct usb_serial_port *port)
2650 device_remove_file(&port->dev, &dev_attr_uart_mode);
2655 static struct usb_serial_driver edgeport_1port_device = {
2657 .owner = THIS_MODULE,
2658 .name = "edgeport_ti_1",
2660 .description = "Edgeport TI 1 port adapter",
2661 .id_table = edgeport_1port_id_table,
2664 .close = edge_close,
2665 .throttle = edge_throttle,
2666 .unthrottle = edge_unthrottle,
2667 .attach = edge_startup,
2668 .disconnect = edge_disconnect,
2669 .release = edge_release,
2670 .port_probe = edge_create_sysfs_attrs,
2671 .port_remove = edge_remove_sysfs_attrs,
2672 .ioctl = edge_ioctl,
2673 .set_termios = edge_set_termios,
2674 .tiocmget = edge_tiocmget,
2675 .tiocmset = edge_tiocmset,
2676 .get_icount = edge_get_icount,
2677 .write = edge_write,
2678 .write_room = edge_write_room,
2679 .chars_in_buffer = edge_chars_in_buffer,
2680 .break_ctl = edge_break,
2681 .read_int_callback = edge_interrupt_callback,
2682 .read_bulk_callback = edge_bulk_in_callback,
2683 .write_bulk_callback = edge_bulk_out_callback,
2686 static struct usb_serial_driver edgeport_2port_device = {
2688 .owner = THIS_MODULE,
2689 .name = "edgeport_ti_2",
2691 .description = "Edgeport TI 2 port adapter",
2692 .id_table = edgeport_2port_id_table,
2695 .close = edge_close,
2696 .throttle = edge_throttle,
2697 .unthrottle = edge_unthrottle,
2698 .attach = edge_startup,
2699 .disconnect = edge_disconnect,
2700 .release = edge_release,
2701 .port_probe = edge_create_sysfs_attrs,
2702 .port_remove = edge_remove_sysfs_attrs,
2703 .ioctl = edge_ioctl,
2704 .set_termios = edge_set_termios,
2705 .tiocmget = edge_tiocmget,
2706 .tiocmset = edge_tiocmset,
2707 .write = edge_write,
2708 .write_room = edge_write_room,
2709 .chars_in_buffer = edge_chars_in_buffer,
2710 .break_ctl = edge_break,
2711 .read_int_callback = edge_interrupt_callback,
2712 .read_bulk_callback = edge_bulk_in_callback,
2713 .write_bulk_callback = edge_bulk_out_callback,
2716 static struct usb_serial_driver * const serial_drivers[] = {
2717 &edgeport_1port_device, &edgeport_2port_device, NULL
2720 module_usb_serial_driver(serial_drivers, id_table_combined);
2722 MODULE_AUTHOR(DRIVER_AUTHOR);
2723 MODULE_DESCRIPTION(DRIVER_DESC);
2724 MODULE_LICENSE("GPL");
2725 MODULE_FIRMWARE("edgeport/down3.bin");
2727 module_param(closing_wait, int, S_IRUGO | S_IWUSR);
2728 MODULE_PARM_DESC(closing_wait, "Maximum wait for data to drain, in .01 secs");
2730 module_param(ignore_cpu_rev, bool, S_IRUGO | S_IWUSR);
2731 MODULE_PARM_DESC(ignore_cpu_rev,
2732 "Ignore the cpu revision when connecting to a device");
2734 module_param(default_uart_mode, int, S_IRUGO | S_IWUSR);
2735 MODULE_PARM_DESC(default_uart_mode, "Default uart_mode, 0=RS232, ...");