2 * Infinity Unlimited USB Phoenix driver
4 * Copyright (C) 2010 James Courtier-Dutton (James@superbug.co.uk)
6 * Copyright (C) 2007 Alain Degreffe (eczema@ecze.com)
8 * Original code taken from iuutool (Copyright (C) 2006 Juan Carlos Borrás)
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * And tested with help of WB Electronics
18 #include <linux/kernel.h>
19 #include <linux/errno.h>
20 #include <linux/init.h>
21 #include <linux/slab.h>
22 #include <linux/tty.h>
23 #include <linux/tty_driver.h>
24 #include <linux/tty_flip.h>
25 #include <linux/serial.h>
26 #include <linux/module.h>
27 #include <linux/moduleparam.h>
28 #include <linux/spinlock.h>
29 #include <linux/uaccess.h>
30 #include <linux/usb.h>
31 #include <linux/usb/serial.h>
32 #include "iuu_phoenix.h"
33 #include <linux/random.h>
38 #define DRIVER_VERSION "v0.12"
39 #define DRIVER_DESC "Infinity USB Unlimited Phoenix driver"
41 static const struct usb_device_id id_table[] = {
42 {USB_DEVICE(IUU_USB_VENDOR_ID, IUU_USB_PRODUCT_ID)},
43 {} /* Terminating entry */
45 MODULE_DEVICE_TABLE(usb, id_table);
48 static int boost = 100;
49 static int clockmode = 1;
50 static int cdmode = 1;
51 static int iuu_cardin;
52 static int iuu_cardout;
54 static int vcc_default = 5;
56 static void read_rxcmd_callback(struct urb *urb);
59 spinlock_t lock; /* store irq state */
60 wait_queue_head_t delta_msr_wait;
62 int tiostatus; /* store IUART SIGNAL for tiocmget call */
63 u8 reset; /* if 1 reset is needed */
64 int poll; /* number of poll */
65 u8 *writebuf; /* buffer for writing to device */
66 int writelen; /* num of byte to write to device */
67 u8 *buf; /* used for initialize speed */
69 int vcc; /* vcc (either 3 or 5 V) */
76 static void iuu_free_buf(struct iuu_private *priv)
79 kfree(priv->writebuf);
82 static int iuu_alloc_buf(struct usb_serial *serial, struct iuu_private *priv)
84 priv->buf = kzalloc(256, GFP_KERNEL);
85 priv->writebuf = kzalloc(256, GFP_KERNEL);
86 if (!priv->buf || !priv->writebuf) {
88 dev_dbg(&serial->dev->dev, "%s problem allocation buffer\n", __func__);
91 dev_dbg(&serial->dev->dev, "%s - Privates buffers allocation success\n", __func__);
95 static int iuu_startup(struct usb_serial *serial)
97 struct iuu_private *priv;
99 priv = kzalloc(sizeof(struct iuu_private), GFP_KERNEL);
100 dev_dbg(&serial->dev->dev, "%s- priv allocation success\n", __func__);
103 if (iuu_alloc_buf(serial, priv)) {
107 priv->vcc = vcc_default;
108 spin_lock_init(&priv->lock);
109 init_waitqueue_head(&priv->delta_msr_wait);
110 usb_set_serial_port_data(serial->port[0], priv);
114 /* Release function */
115 static void iuu_release(struct usb_serial *serial)
117 struct usb_serial_port *port = serial->port[0];
118 struct iuu_private *priv = usb_get_serial_port_data(port);
124 dev_dbg(&port->dev, "%s - I will free all\n", __func__);
125 usb_set_serial_port_data(port, NULL);
127 dev_dbg(&port->dev, "%s - priv is not anymore in port structure\n", __func__);
130 dev_dbg(&port->dev, "%s priv is now kfree\n", __func__);
134 static int iuu_tiocmset(struct tty_struct *tty,
135 unsigned int set, unsigned int clear)
137 struct usb_serial_port *port = tty->driver_data;
138 struct iuu_private *priv = usb_get_serial_port_data(port);
141 /* FIXME: locking on tiomstatus */
142 dev_dbg(&port->dev, "%s msg : SET = 0x%04x, CLEAR = 0x%04x\n",
143 __func__, set, clear);
145 spin_lock_irqsave(&priv->lock, flags);
147 if ((set & TIOCM_RTS) && !(priv->tiostatus == TIOCM_RTS)) {
148 dev_dbg(&port->dev, "%s TIOCMSET RESET called !!!\n", __func__);
152 priv->tiostatus = TIOCM_RTS;
154 spin_unlock_irqrestore(&priv->lock, flags);
158 /* This is used to provide a carrier detect mechanism
159 * When a card is present, the response is 0x00
160 * When no card , the reader respond with TIOCM_CD
161 * This is known as CD autodetect mechanism
163 static int iuu_tiocmget(struct tty_struct *tty)
165 struct usb_serial_port *port = tty->driver_data;
166 struct iuu_private *priv = usb_get_serial_port_data(port);
170 spin_lock_irqsave(&priv->lock, flags);
171 rc = priv->tiostatus;
172 spin_unlock_irqrestore(&priv->lock, flags);
177 static void iuu_rxcmd(struct urb *urb)
179 struct usb_serial_port *port = urb->context;
181 int status = urb->status;
184 dev_dbg(&port->dev, "%s - status = %d\n", __func__, status);
190 memset(port->write_urb->transfer_buffer, IUU_UART_RX, 1);
191 usb_fill_bulk_urb(port->write_urb, port->serial->dev,
192 usb_sndbulkpipe(port->serial->dev,
193 port->bulk_out_endpointAddress),
194 port->write_urb->transfer_buffer, 1,
195 read_rxcmd_callback, port);
196 result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
199 static int iuu_reset(struct usb_serial_port *port, u8 wt)
201 struct iuu_private *priv = usb_get_serial_port_data(port);
203 char *buf_ptr = port->write_urb->transfer_buffer;
205 /* Prepare the reset sequence */
207 *buf_ptr++ = IUU_RST_SET;
208 *buf_ptr++ = IUU_DELAY_MS;
210 *buf_ptr = IUU_RST_CLEAR;
212 /* send the sequence */
214 usb_fill_bulk_urb(port->write_urb,
216 usb_sndbulkpipe(port->serial->dev,
217 port->bulk_out_endpointAddress),
218 port->write_urb->transfer_buffer, 4, iuu_rxcmd, port);
219 result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
230 static void iuu_update_status_callback(struct urb *urb)
232 struct usb_serial_port *port = urb->context;
233 struct iuu_private *priv = usb_get_serial_port_data(port);
235 int status = urb->status;
238 dev_dbg(&port->dev, "%s - status = %d\n", __func__, status);
243 st = urb->transfer_buffer;
244 dev_dbg(&port->dev, "%s - enter\n", __func__);
245 if (urb->actual_length == 1) {
248 priv->tiostatus = iuu_cardout;
251 priv->tiostatus = iuu_cardin;
254 priv->tiostatus = iuu_cardin;
260 static void iuu_status_callback(struct urb *urb)
262 struct usb_serial_port *port = urb->context;
264 int status = urb->status;
266 dev_dbg(&port->dev, "%s - status = %d\n", __func__, status);
267 usb_fill_bulk_urb(port->read_urb, port->serial->dev,
268 usb_rcvbulkpipe(port->serial->dev,
269 port->bulk_in_endpointAddress),
270 port->read_urb->transfer_buffer, 256,
271 iuu_update_status_callback, port);
272 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
275 static int iuu_status(struct usb_serial_port *port)
279 memset(port->write_urb->transfer_buffer, IUU_GET_STATE_REGISTER, 1);
280 usb_fill_bulk_urb(port->write_urb, port->serial->dev,
281 usb_sndbulkpipe(port->serial->dev,
282 port->bulk_out_endpointAddress),
283 port->write_urb->transfer_buffer, 1,
284 iuu_status_callback, port);
285 result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
290 static int bulk_immediate(struct usb_serial_port *port, u8 *buf, u8 count)
293 struct usb_serial *serial = port->serial;
296 /* send the data out the bulk port */
299 usb_bulk_msg(serial->dev,
300 usb_sndbulkpipe(serial->dev,
301 port->bulk_out_endpointAddress), buf,
302 count, &actual, HZ * 1);
304 if (status != IUU_OPERATION_OK)
305 dev_dbg(&port->dev, "%s - error = %2x\n", __func__, status);
307 dev_dbg(&port->dev, "%s - write OK !\n", __func__);
311 static int read_immediate(struct usb_serial_port *port, u8 *buf, u8 count)
314 struct usb_serial *serial = port->serial;
317 /* send the data out the bulk port */
319 usb_bulk_msg(serial->dev,
320 usb_rcvbulkpipe(serial->dev,
321 port->bulk_in_endpointAddress), buf,
322 count, &actual, HZ * 1);
324 if (status != IUU_OPERATION_OK)
325 dev_dbg(&port->dev, "%s - error = %2x\n", __func__, status);
327 dev_dbg(&port->dev, "%s - read OK !\n", __func__);
331 static int iuu_led(struct usb_serial_port *port, unsigned int R,
332 unsigned int G, unsigned int B, u8 f)
336 buf = kmalloc(8, GFP_KERNEL);
340 buf[0] = IUU_SET_LED;
342 buf[2] = (R >> 8) & 0xFF;
344 buf[4] = (G >> 8) & 0xFF;
346 buf[6] = (B >> 8) & 0xFF;
348 status = bulk_immediate(port, buf, 8);
350 if (status != IUU_OPERATION_OK)
351 dev_dbg(&port->dev, "%s - led error status = %2x\n", __func__, status);
353 dev_dbg(&port->dev, "%s - led OK !\n", __func__);
354 return IUU_OPERATION_OK;
357 static void iuu_rgbf_fill_buffer(u8 *buf, u8 r1, u8 r2, u8 g1, u8 g2, u8 b1,
360 *buf++ = IUU_SET_LED;
370 static void iuu_led_activity_on(struct urb *urb)
372 struct usb_serial_port *port = urb->context;
374 char *buf_ptr = port->write_urb->transfer_buffer;
375 *buf_ptr++ = IUU_SET_LED;
377 get_random_bytes(buf_ptr, 6);
380 iuu_rgbf_fill_buffer(buf_ptr, 255, 255, 0, 0, 0, 0, 255);
383 usb_fill_bulk_urb(port->write_urb, port->serial->dev,
384 usb_sndbulkpipe(port->serial->dev,
385 port->bulk_out_endpointAddress),
386 port->write_urb->transfer_buffer, 8 ,
388 result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
391 static void iuu_led_activity_off(struct urb *urb)
393 struct usb_serial_port *port = urb->context;
395 char *buf_ptr = port->write_urb->transfer_buffer;
400 *buf_ptr++ = IUU_SET_LED;
401 iuu_rgbf_fill_buffer(buf_ptr, 0, 0, 255, 255, 0, 0, 255);
403 usb_fill_bulk_urb(port->write_urb, port->serial->dev,
404 usb_sndbulkpipe(port->serial->dev,
405 port->bulk_out_endpointAddress),
406 port->write_urb->transfer_buffer, 8 ,
408 result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
413 static int iuu_clk(struct usb_serial_port *port, int dwFrq)
416 struct iuu_private *priv = usb_get_serial_port_data(port);
419 u8 DIV = 0; /* 8bit */
420 u8 XDRV = 0; /* 8bit */
421 u8 PUMP = 0; /* 3bit */
422 u8 PBmsb = 0; /* 2bit */
423 u8 PBlsb = 0; /* 8bit */
424 u8 PO = 0; /* 1bit */
429 int frq = (int)dwFrq;
432 priv->buf[Count++] = IUU_UART_WRITE_I2C;
433 priv->buf[Count++] = FrqGenAdr << 1;
434 priv->buf[Count++] = 0x09;
435 priv->buf[Count++] = 0x00;
437 status = bulk_immediate(port, (u8 *) priv->buf, Count);
439 dev_dbg(&port->dev, "%s - write error\n", __func__);
442 } else if (frq == 3579000) {
447 } else if (frq == 3680000) {
452 } else if (frq == 6000000) {
458 unsigned int result = 0;
459 unsigned int tmp = 0;
464 unsigned int lP = 2055;
465 unsigned int lDiv = 4;
467 for (lQ = 2; lQ <= 47 && !found; lQ++)
468 for (lP = 2055; lP >= 8 && !found; lP--)
469 for (lDiv = 4; lDiv <= 127 && !found; lDiv++) {
470 tmp = (12000000 / lDiv) * (lP / lQ);
471 if (abs((int)(tmp - frq)) <
472 abs((int)(frq - result))) {
473 check2 = (12000000 / lQ);
476 check = (12000000 / lQ) * lP;
477 if (check > 400000000)
479 if (check < 100000000)
481 if (lDiv < 4 || lDiv > 127)
492 P2 = ((P - PO) / 2) - 4;
495 PBmsb = (P2 >> 8 & 0x03);
497 PO = (P >> 10) & 0x01;
500 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
501 priv->buf[Count++] = FrqGenAdr << 1;
502 priv->buf[Count++] = 0x09;
503 priv->buf[Count++] = 0x20; /* Adr = 0x09 */
504 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
505 priv->buf[Count++] = FrqGenAdr << 1;
506 priv->buf[Count++] = 0x0C;
507 priv->buf[Count++] = DIV; /* Adr = 0x0C */
508 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
509 priv->buf[Count++] = FrqGenAdr << 1;
510 priv->buf[Count++] = 0x12;
511 priv->buf[Count++] = XDRV; /* Adr = 0x12 */
512 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
513 priv->buf[Count++] = FrqGenAdr << 1;
514 priv->buf[Count++] = 0x13;
515 priv->buf[Count++] = 0x6B; /* Adr = 0x13 */
516 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
517 priv->buf[Count++] = FrqGenAdr << 1;
518 priv->buf[Count++] = 0x40;
519 priv->buf[Count++] = (0xC0 | ((PUMP & 0x07) << 2)) |
520 (PBmsb & 0x03); /* Adr = 0x40 */
521 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
522 priv->buf[Count++] = FrqGenAdr << 1;
523 priv->buf[Count++] = 0x41;
524 priv->buf[Count++] = PBlsb; /* Adr = 0x41 */
525 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
526 priv->buf[Count++] = FrqGenAdr << 1;
527 priv->buf[Count++] = 0x42;
528 priv->buf[Count++] = Q | (((PO & 0x01) << 7)); /* Adr = 0x42 */
529 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
530 priv->buf[Count++] = FrqGenAdr << 1;
531 priv->buf[Count++] = 0x44;
532 priv->buf[Count++] = (char)0xFF; /* Adr = 0x44 */
533 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
534 priv->buf[Count++] = FrqGenAdr << 1;
535 priv->buf[Count++] = 0x45;
536 priv->buf[Count++] = (char)0xFE; /* Adr = 0x45 */
537 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
538 priv->buf[Count++] = FrqGenAdr << 1;
539 priv->buf[Count++] = 0x46;
540 priv->buf[Count++] = 0x7F; /* Adr = 0x46 */
541 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
542 priv->buf[Count++] = FrqGenAdr << 1;
543 priv->buf[Count++] = 0x47;
544 priv->buf[Count++] = (char)0x84; /* Adr = 0x47 */
546 status = bulk_immediate(port, (u8 *) priv->buf, Count);
547 if (status != IUU_OPERATION_OK)
548 dev_dbg(&port->dev, "%s - write error\n", __func__);
552 static int iuu_uart_flush(struct usb_serial_port *port)
554 struct device *dev = &port->dev;
557 u8 rxcmd = IUU_UART_RX;
558 struct iuu_private *priv = usb_get_serial_port_data(port);
560 if (iuu_led(port, 0xF000, 0, 0, 0xFF) < 0)
563 for (i = 0; i < 2; i++) {
564 status = bulk_immediate(port, &rxcmd, 1);
565 if (status != IUU_OPERATION_OK) {
566 dev_dbg(dev, "%s - uart_flush_write error\n", __func__);
570 status = read_immediate(port, &priv->len, 1);
571 if (status != IUU_OPERATION_OK) {
572 dev_dbg(dev, "%s - uart_flush_read error\n", __func__);
577 dev_dbg(dev, "%s - uart_flush datalen is : %i\n", __func__, priv->len);
578 status = read_immediate(port, priv->buf, priv->len);
579 if (status != IUU_OPERATION_OK) {
580 dev_dbg(dev, "%s - uart_flush_read error\n", __func__);
585 dev_dbg(dev, "%s - uart_flush_read OK!\n", __func__);
586 iuu_led(port, 0, 0xF000, 0, 0xFF);
590 static void read_buf_callback(struct urb *urb)
592 struct usb_serial_port *port = urb->context;
593 unsigned char *data = urb->transfer_buffer;
594 struct tty_struct *tty;
595 int status = urb->status;
598 if (status == -EPROTO) {
599 /* reschedule needed */
604 dev_dbg(&port->dev, "%s - %i chars to write\n", __func__, urb->actual_length);
605 tty = tty_port_tty_get(&port->port);
607 dev_dbg(&port->dev, "%s - data is NULL !!!\n", __func__);
608 if (tty && urb->actual_length && data) {
609 tty_insert_flip_string(tty, data, urb->actual_length);
610 tty_flip_buffer_push(tty);
613 iuu_led_activity_on(urb);
616 static int iuu_bulk_write(struct usb_serial_port *port)
618 struct iuu_private *priv = usb_get_serial_port_data(port);
622 char *buf_ptr = port->write_urb->transfer_buffer;
624 spin_lock_irqsave(&priv->lock, flags);
625 *buf_ptr++ = IUU_UART_ESC;
626 *buf_ptr++ = IUU_UART_TX;
627 *buf_ptr++ = priv->writelen;
629 memcpy(buf_ptr, priv->writebuf, priv->writelen);
630 buf_len = priv->writelen;
632 spin_unlock_irqrestore(&priv->lock, flags);
633 dev_dbg(&port->dev, "%s - writing %i chars : %*ph\n", __func__,
634 buf_len, buf_len, buf_ptr);
635 usb_fill_bulk_urb(port->write_urb, port->serial->dev,
636 usb_sndbulkpipe(port->serial->dev,
637 port->bulk_out_endpointAddress),
638 port->write_urb->transfer_buffer, buf_len + 3,
640 result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
641 usb_serial_port_softint(port);
645 static int iuu_read_buf(struct usb_serial_port *port, int len)
649 usb_fill_bulk_urb(port->read_urb, port->serial->dev,
650 usb_rcvbulkpipe(port->serial->dev,
651 port->bulk_in_endpointAddress),
652 port->read_urb->transfer_buffer, len,
653 read_buf_callback, port);
654 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
658 static void iuu_uart_read_callback(struct urb *urb)
660 struct usb_serial_port *port = urb->context;
661 struct iuu_private *priv = usb_get_serial_port_data(port);
663 int status = urb->status;
666 unsigned char *data = urb->transfer_buffer;
670 dev_dbg(&port->dev, "%s - status = %d\n", __func__, status);
675 dev_dbg(&port->dev, "%s - data is NULL !!!\n", __func__);
677 if (urb->actual_length == 1 && data != NULL)
680 if (urb->actual_length > 1) {
681 dev_dbg(&port->dev, "%s - urb->actual_length = %i\n", __func__,
686 /* if len > 0 call readbuf */
688 if (len > 0 && error == 0) {
689 dev_dbg(&port->dev, "%s - call read buf - len to read is %i\n",
691 status = iuu_read_buf(port, len);
694 /* need to update status ? */
695 if (priv->poll > 99) {
696 status = iuu_status(port);
701 /* reset waiting ? */
703 if (priv->reset == 1) {
704 status = iuu_reset(port, 0xC);
707 /* Writebuf is waiting */
708 spin_lock_irqsave(&priv->lock, flags);
709 if (priv->writelen > 0) {
710 spin_unlock_irqrestore(&priv->lock, flags);
711 status = iuu_bulk_write(port);
714 spin_unlock_irqrestore(&priv->lock, flags);
715 /* if nothing to write call again rxcmd */
716 dev_dbg(&port->dev, "%s - rxcmd recall\n", __func__);
717 iuu_led_activity_off(urb);
720 static int iuu_uart_write(struct tty_struct *tty, struct usb_serial_port *port,
721 const u8 *buf, int count)
723 struct iuu_private *priv = usb_get_serial_port_data(port);
729 spin_lock_irqsave(&priv->lock, flags);
731 /* fill the buffer */
732 memcpy(priv->writebuf + priv->writelen, buf, count);
733 priv->writelen += count;
734 spin_unlock_irqrestore(&priv->lock, flags);
739 static void read_rxcmd_callback(struct urb *urb)
741 struct usb_serial_port *port = urb->context;
743 int status = urb->status;
750 usb_fill_bulk_urb(port->read_urb, port->serial->dev,
751 usb_rcvbulkpipe(port->serial->dev,
752 port->bulk_in_endpointAddress),
753 port->read_urb->transfer_buffer, 256,
754 iuu_uart_read_callback, port);
755 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
756 dev_dbg(&port->dev, "%s - submit result = %d\n", __func__, result);
759 static int iuu_uart_on(struct usb_serial_port *port)
764 buf = kmalloc(sizeof(u8) * 4, GFP_KERNEL);
769 buf[0] = IUU_UART_ENABLE;
770 buf[1] = (u8) ((IUU_BAUD_9600 >> 8) & 0x00FF);
771 buf[2] = (u8) (0x00FF & IUU_BAUD_9600);
772 buf[3] = (u8) (0x0F0 & IUU_ONE_STOP_BIT) | (0x07 & IUU_PARITY_EVEN);
774 status = bulk_immediate(port, buf, 4);
775 if (status != IUU_OPERATION_OK) {
776 dev_dbg(&port->dev, "%s - uart_on error\n", __func__);
777 goto uart_enable_failed;
779 /* iuu_reset() the card after iuu_uart_on() */
780 status = iuu_uart_flush(port);
781 if (status != IUU_OPERATION_OK)
782 dev_dbg(&port->dev, "%s - uart_flush error\n", __func__);
788 /* Diables the IUU UART (a.k.a. the Phoenix voiderface) */
789 static int iuu_uart_off(struct usb_serial_port *port)
793 buf = kmalloc(1, GFP_KERNEL);
796 buf[0] = IUU_UART_DISABLE;
798 status = bulk_immediate(port, buf, 1);
799 if (status != IUU_OPERATION_OK)
800 dev_dbg(&port->dev, "%s - uart_off error\n", __func__);
806 static int iuu_uart_baud(struct usb_serial_port *port, u32 baud_base,
807 u32 *actual, u8 parity)
815 unsigned int T1FrekvensHZ = 0;
817 dev_dbg(&port->dev, "%s - enter baud_base=%d\n", __func__, baud_base);
818 dataout = kmalloc(sizeof(u8) * 5, GFP_KERNEL);
822 /*baud = (((priv->clk / 35) * baud_base) / 100000); */
825 if (baud < 1200 || baud > 230400) {
827 return IUU_INVALID_PARAMETER;
831 T1FrekvensHZ = 500000;
836 T1FrekvensHZ = 2000000;
841 T1FrekvensHZ = 6000000;
846 T1FrekvensHZ = 24000000;
849 T1reload = 256 - (u8) (T1FrekvensHZ / (baud * 2));
851 /* magic number here: ENTER_FIRMWARE_UPDATE; */
852 dataout[DataCount++] = IUU_UART_ESC;
853 /* magic number here: CHANGE_BAUD; */
854 dataout[DataCount++] = IUU_UART_CHANGE;
855 dataout[DataCount++] = T1Frekvens;
856 dataout[DataCount++] = T1reload;
858 *actual = (T1FrekvensHZ / (256 - T1reload)) / 2;
860 switch (parity & 0x0F) {
861 case IUU_PARITY_NONE:
862 dataout[DataCount++] = 0x00;
864 case IUU_PARITY_EVEN:
865 dataout[DataCount++] = 0x01;
868 dataout[DataCount++] = 0x02;
870 case IUU_PARITY_MARK:
871 dataout[DataCount++] = 0x03;
873 case IUU_PARITY_SPACE:
874 dataout[DataCount++] = 0x04;
878 return IUU_INVALID_PARAMETER;
882 switch (parity & 0xF0) {
883 case IUU_ONE_STOP_BIT:
884 dataout[DataCount - 1] |= IUU_ONE_STOP_BIT;
887 case IUU_TWO_STOP_BITS:
888 dataout[DataCount - 1] |= IUU_TWO_STOP_BITS;
892 return IUU_INVALID_PARAMETER;
896 status = bulk_immediate(port, dataout, DataCount);
897 if (status != IUU_OPERATION_OK)
898 dev_dbg(&port->dev, "%s - uart_off error\n", __func__);
903 static void iuu_set_termios(struct tty_struct *tty,
904 struct usb_serial_port *port, struct ktermios *old_termios)
906 const u32 supported_mask = CMSPAR|PARENB|PARODD;
907 struct iuu_private *priv = usb_get_serial_port_data(port);
908 unsigned int cflag = tty->termios->c_cflag;
914 u32 newval = cflag & supported_mask;
916 /* Just use the ospeed. ispeed should be the same. */
917 baud = tty->termios->c_ospeed;
919 dev_dbg(&port->dev, "%s - enter c_ospeed or baud=%d\n", __func__, baud);
921 /* compute the parity parameter */
923 if (cflag & CMSPAR) { /* Using mark space */
925 parity |= IUU_PARITY_SPACE;
927 parity |= IUU_PARITY_MARK;
928 } else if (!(cflag & PARENB)) {
929 parity |= IUU_PARITY_NONE;
931 } else if (cflag & PARODD)
932 parity |= IUU_PARITY_ODD;
934 parity |= IUU_PARITY_EVEN;
936 parity |= (cflag & CSTOPB ? IUU_TWO_STOP_BITS : IUU_ONE_STOP_BIT);
939 status = iuu_uart_baud(port,
940 baud * priv->boost / 100,
943 /* set the termios value to the real one, so the user now what has
944 * changed. We support few fields so its easies to copy the old hw
945 * settings back over and then adjust them
948 tty_termios_copy_hw(tty->termios, old_termios);
949 if (status != 0) /* Set failed - return old bits */
951 /* Re-encode speed, parity and csize */
952 tty_encode_baud_rate(tty, baud, baud);
953 tty->termios->c_cflag &= ~(supported_mask|CSIZE);
954 tty->termios->c_cflag |= newval | csize;
957 static void iuu_close(struct usb_serial_port *port)
959 /* iuu_led (port,255,0,0,0); */
960 struct usb_serial *serial;
962 serial = port->serial;
969 /* shutdown our urbs */
970 dev_dbg(&port->dev, "%s - shutting down urbs\n", __func__);
971 usb_kill_urb(port->write_urb);
972 usb_kill_urb(port->read_urb);
973 usb_kill_urb(port->interrupt_in_urb);
974 iuu_led(port, 0, 0, 0xF000, 0xFF);
978 static void iuu_init_termios(struct tty_struct *tty)
980 *(tty->termios) = tty_std_termios;
981 tty->termios->c_cflag = CLOCAL | CREAD | CS8 | B9600
982 | TIOCM_CTS | CSTOPB | PARENB;
983 tty->termios->c_ispeed = 9600;
984 tty->termios->c_ospeed = 9600;
985 tty->termios->c_lflag = 0;
986 tty->termios->c_oflag = 0;
987 tty->termios->c_iflag = 0;
990 static int iuu_open(struct tty_struct *tty, struct usb_serial_port *port)
992 struct usb_serial *serial = port->serial;
993 struct device *dev = &port->dev;
998 struct iuu_private *priv = usb_get_serial_port_data(port);
1000 baud = tty->termios->c_ospeed;
1001 tty->termios->c_ispeed = baud;
1002 /* Re-encode speed */
1003 tty_encode_baud_rate(tty, baud, baud);
1005 dev_dbg(dev, "%s - baud %d\n", __func__, baud);
1006 usb_clear_halt(serial->dev, port->write_urb->pipe);
1007 usb_clear_halt(serial->dev, port->read_urb->pipe);
1009 buf = kmalloc(10, GFP_KERNEL);
1015 /* initialize writebuf */
1016 #define FISH(a, b, c, d) do { \
1017 result = usb_control_msg(port->serial->dev, \
1018 usb_rcvctrlpipe(port->serial->dev, 0), \
1019 b, a, c, d, buf, 1, 1000); \
1020 dev_dbg(dev, "0x%x:0x%x:0x%x:0x%x %d - %x\n", a, b, c, d, result, \
1021 buf[0]); } while (0);
1023 #define SOUP(a, b, c, d) do { \
1024 result = usb_control_msg(port->serial->dev, \
1025 usb_sndctrlpipe(port->serial->dev, 0), \
1026 b, a, c, d, NULL, 0, 1000); \
1027 dev_dbg(dev, "0x%x:0x%x:0x%x:0x%x %d\n", a, b, c, d, result); } while (0)
1029 /* This is not UART related but IUU USB driver related or something */
1030 /* like that. Basically no IUU will accept any commands from the USB */
1031 /* host unless it has received the following message */
1032 /* sprintf(buf ,"%c%c%c%c",0x03,0x02,0x02,0x0); */
1034 SOUP(0x03, 0x02, 0x02, 0x0);
1036 iuu_led(port, 0xF000, 0xF000, 0, 0xFF);
1040 priv->boost = boost;
1042 switch (clockmode) {
1043 case 2: /* 3.680 Mhz */
1044 priv->clk = IUU_CLK_3680000;
1045 iuu_clk(port, IUU_CLK_3680000 * boost / 100);
1047 iuu_uart_baud(port, baud * boost / 100, &actual,
1050 case 3: /* 6.00 Mhz */
1051 iuu_clk(port, IUU_CLK_6000000 * boost / 100);
1052 priv->clk = IUU_CLK_6000000;
1053 /* Ratio of 6000000 to 3500000 for baud 9600 */
1055 iuu_uart_baud(port, 16457 * boost / 100, &actual,
1058 default: /* 3.579 Mhz */
1059 iuu_clk(port, IUU_CLK_3579000 * boost / 100);
1060 priv->clk = IUU_CLK_3579000;
1062 iuu_uart_baud(port, baud * boost / 100, &actual,
1066 /* set the cardin cardout signals */
1073 iuu_cardin = TIOCM_CD;
1078 iuu_cardout = TIOCM_CD;
1081 iuu_cardin = TIOCM_DSR;
1086 iuu_cardout = TIOCM_DSR;
1089 iuu_cardin = TIOCM_CTS;
1094 iuu_cardout = TIOCM_CTS;
1097 iuu_cardin = TIOCM_RNG;
1102 iuu_cardout = TIOCM_RNG;
1105 iuu_uart_flush(port);
1107 dev_dbg(dev, "%s - initialization done\n", __func__);
1109 memset(port->write_urb->transfer_buffer, IUU_UART_RX, 1);
1110 usb_fill_bulk_urb(port->write_urb, port->serial->dev,
1111 usb_sndbulkpipe(port->serial->dev,
1112 port->bulk_out_endpointAddress),
1113 port->write_urb->transfer_buffer, 1,
1114 read_rxcmd_callback, port);
1115 result = usb_submit_urb(port->write_urb, GFP_KERNEL);
1117 dev_err(dev, "%s - failed submitting read urb, error %d\n", __func__, result);
1120 dev_dbg(dev, "%s - rxcmd OK\n", __func__);
1126 /* how to change VCC */
1127 static int iuu_vcc_set(struct usb_serial_port *port, unsigned int vcc)
1132 buf = kmalloc(5, GFP_KERNEL);
1136 buf[0] = IUU_SET_VCC;
1137 buf[1] = vcc & 0xFF;
1138 buf[2] = (vcc >> 8) & 0xFF;
1139 buf[3] = (vcc >> 16) & 0xFF;
1140 buf[4] = (vcc >> 24) & 0xFF;
1142 status = bulk_immediate(port, buf, 5);
1145 if (status != IUU_OPERATION_OK)
1146 dev_dbg(&port->dev, "%s - vcc error status = %2x\n", __func__, status);
1148 dev_dbg(&port->dev, "%s - vcc OK !\n", __func__);
1157 static ssize_t show_vcc_mode(struct device *dev,
1158 struct device_attribute *attr, char *buf)
1160 struct usb_serial_port *port = to_usb_serial_port(dev);
1161 struct iuu_private *priv = usb_get_serial_port_data(port);
1163 return sprintf(buf, "%d\n", priv->vcc);
1166 static ssize_t store_vcc_mode(struct device *dev,
1167 struct device_attribute *attr, const char *buf, size_t count)
1169 struct usb_serial_port *port = to_usb_serial_port(dev);
1170 struct iuu_private *priv = usb_get_serial_port_data(port);
1173 if (strict_strtoul(buf, 10, &v)) {
1174 dev_err(dev, "%s - vcc_mode: %s is not a unsigned long\n",
1176 goto fail_store_vcc_mode;
1179 dev_dbg(dev, "%s: setting vcc_mode = %ld", __func__, v);
1181 if ((v != 3) && (v != 5)) {
1182 dev_err(dev, "%s - vcc_mode %ld is invalid\n", __func__, v);
1184 iuu_vcc_set(port, v);
1187 fail_store_vcc_mode:
1191 static DEVICE_ATTR(vcc_mode, S_IRUSR | S_IWUSR, show_vcc_mode,
1194 static int iuu_create_sysfs_attrs(struct usb_serial_port *port)
1196 return device_create_file(&port->dev, &dev_attr_vcc_mode);
1199 static int iuu_remove_sysfs_attrs(struct usb_serial_port *port)
1201 device_remove_file(&port->dev, &dev_attr_vcc_mode);
1206 * End Sysfs Attributes
1209 static struct usb_serial_driver iuu_device = {
1211 .owner = THIS_MODULE,
1212 .name = "iuu_phoenix",
1214 .id_table = id_table,
1216 .bulk_in_size = 512,
1217 .bulk_out_size = 512,
1218 .port_probe = iuu_create_sysfs_attrs,
1219 .port_remove = iuu_remove_sysfs_attrs,
1222 .write = iuu_uart_write,
1223 .read_bulk_callback = iuu_uart_read_callback,
1224 .tiocmget = iuu_tiocmget,
1225 .tiocmset = iuu_tiocmset,
1226 .set_termios = iuu_set_termios,
1227 .init_termios = iuu_init_termios,
1228 .attach = iuu_startup,
1229 .release = iuu_release,
1232 static struct usb_serial_driver * const serial_drivers[] = {
1236 module_usb_serial_driver(serial_drivers, id_table);
1238 MODULE_AUTHOR("Alain Degreffe eczema@ecze.com");
1240 MODULE_DESCRIPTION(DRIVER_DESC);
1241 MODULE_LICENSE("GPL");
1243 MODULE_VERSION(DRIVER_VERSION);
1245 module_param(xmas, bool, S_IRUGO | S_IWUSR);
1246 MODULE_PARM_DESC(xmas, "Xmas colors enabled or not");
1248 module_param(boost, int, S_IRUGO | S_IWUSR);
1249 MODULE_PARM_DESC(boost, "Card overclock boost (in percent 100-500)");
1251 module_param(clockmode, int, S_IRUGO | S_IWUSR);
1252 MODULE_PARM_DESC(clockmode, "Card clock mode (1=3.579 MHz, 2=3.680 MHz, "
1255 module_param(cdmode, int, S_IRUGO | S_IWUSR);
1256 MODULE_PARM_DESC(cdmode, "Card detect mode (0=none, 1=CD, 2=!CD, 3=DSR, "
1257 "4=!DSR, 5=CTS, 6=!CTS, 7=RING, 8=!RING)");
1259 module_param(vcc_default, int, S_IRUGO | S_IWUSR);
1260 MODULE_PARM_DESC(vcc_default, "Set default VCC (either 3 for 3.3V or 5 "
1261 "for 5V). Default to 5.");