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 int iuu_create_sysfs_attrs(struct usb_serial_port *port);
57 static int iuu_remove_sysfs_attrs(struct usb_serial_port *port);
58 static void read_rxcmd_callback(struct urb *urb);
61 spinlock_t lock; /* store irq state */
62 wait_queue_head_t delta_msr_wait;
64 int tiostatus; /* store IUART SIGNAL for tiocmget call */
65 u8 reset; /* if 1 reset is needed */
66 int poll; /* number of poll */
67 u8 *writebuf; /* buffer for writing to device */
68 int writelen; /* num of byte to write to device */
69 u8 *buf; /* used for initialize speed */
71 int vcc; /* vcc (either 3 or 5 V) */
77 static int iuu_port_probe(struct usb_serial_port *port)
79 struct iuu_private *priv;
82 priv = kzalloc(sizeof(struct iuu_private), GFP_KERNEL);
86 priv->buf = kzalloc(256, GFP_KERNEL);
92 priv->writebuf = kzalloc(256, GFP_KERNEL);
93 if (!priv->writebuf) {
99 priv->vcc = vcc_default;
100 spin_lock_init(&priv->lock);
101 init_waitqueue_head(&priv->delta_msr_wait);
103 usb_set_serial_port_data(port, priv);
105 ret = iuu_create_sysfs_attrs(port);
107 kfree(priv->writebuf);
116 static int iuu_port_remove(struct usb_serial_port *port)
118 struct iuu_private *priv = usb_get_serial_port_data(port);
120 iuu_remove_sysfs_attrs(port);
121 kfree(priv->writebuf);
128 static int iuu_tiocmset(struct tty_struct *tty,
129 unsigned int set, unsigned int clear)
131 struct usb_serial_port *port = tty->driver_data;
132 struct iuu_private *priv = usb_get_serial_port_data(port);
135 /* FIXME: locking on tiomstatus */
136 dev_dbg(&port->dev, "%s msg : SET = 0x%04x, CLEAR = 0x%04x\n",
137 __func__, set, clear);
139 spin_lock_irqsave(&priv->lock, flags);
141 if ((set & TIOCM_RTS) && !(priv->tiostatus == TIOCM_RTS)) {
142 dev_dbg(&port->dev, "%s TIOCMSET RESET called !!!\n", __func__);
146 priv->tiostatus = TIOCM_RTS;
148 spin_unlock_irqrestore(&priv->lock, flags);
152 /* This is used to provide a carrier detect mechanism
153 * When a card is present, the response is 0x00
154 * When no card , the reader respond with TIOCM_CD
155 * This is known as CD autodetect mechanism
157 static int iuu_tiocmget(struct tty_struct *tty)
159 struct usb_serial_port *port = tty->driver_data;
160 struct iuu_private *priv = usb_get_serial_port_data(port);
164 spin_lock_irqsave(&priv->lock, flags);
165 rc = priv->tiostatus;
166 spin_unlock_irqrestore(&priv->lock, flags);
171 static void iuu_rxcmd(struct urb *urb)
173 struct usb_serial_port *port = urb->context;
175 int status = urb->status;
178 dev_dbg(&port->dev, "%s - status = %d\n", __func__, status);
184 memset(port->write_urb->transfer_buffer, IUU_UART_RX, 1);
185 usb_fill_bulk_urb(port->write_urb, port->serial->dev,
186 usb_sndbulkpipe(port->serial->dev,
187 port->bulk_out_endpointAddress),
188 port->write_urb->transfer_buffer, 1,
189 read_rxcmd_callback, port);
190 result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
193 static int iuu_reset(struct usb_serial_port *port, u8 wt)
195 struct iuu_private *priv = usb_get_serial_port_data(port);
197 char *buf_ptr = port->write_urb->transfer_buffer;
199 /* Prepare the reset sequence */
201 *buf_ptr++ = IUU_RST_SET;
202 *buf_ptr++ = IUU_DELAY_MS;
204 *buf_ptr = IUU_RST_CLEAR;
206 /* send the sequence */
208 usb_fill_bulk_urb(port->write_urb,
210 usb_sndbulkpipe(port->serial->dev,
211 port->bulk_out_endpointAddress),
212 port->write_urb->transfer_buffer, 4, iuu_rxcmd, port);
213 result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
224 static void iuu_update_status_callback(struct urb *urb)
226 struct usb_serial_port *port = urb->context;
227 struct iuu_private *priv = usb_get_serial_port_data(port);
229 int status = urb->status;
232 dev_dbg(&port->dev, "%s - status = %d\n", __func__, status);
237 st = urb->transfer_buffer;
238 dev_dbg(&port->dev, "%s - enter\n", __func__);
239 if (urb->actual_length == 1) {
242 priv->tiostatus = iuu_cardout;
245 priv->tiostatus = iuu_cardin;
248 priv->tiostatus = iuu_cardin;
254 static void iuu_status_callback(struct urb *urb)
256 struct usb_serial_port *port = urb->context;
258 int status = urb->status;
260 dev_dbg(&port->dev, "%s - status = %d\n", __func__, status);
261 usb_fill_bulk_urb(port->read_urb, port->serial->dev,
262 usb_rcvbulkpipe(port->serial->dev,
263 port->bulk_in_endpointAddress),
264 port->read_urb->transfer_buffer, 256,
265 iuu_update_status_callback, port);
266 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
269 static int iuu_status(struct usb_serial_port *port)
273 memset(port->write_urb->transfer_buffer, IUU_GET_STATE_REGISTER, 1);
274 usb_fill_bulk_urb(port->write_urb, port->serial->dev,
275 usb_sndbulkpipe(port->serial->dev,
276 port->bulk_out_endpointAddress),
277 port->write_urb->transfer_buffer, 1,
278 iuu_status_callback, port);
279 result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
284 static int bulk_immediate(struct usb_serial_port *port, u8 *buf, u8 count)
287 struct usb_serial *serial = port->serial;
290 /* send the data out the bulk port */
293 usb_bulk_msg(serial->dev,
294 usb_sndbulkpipe(serial->dev,
295 port->bulk_out_endpointAddress), buf,
296 count, &actual, HZ * 1);
298 if (status != IUU_OPERATION_OK)
299 dev_dbg(&port->dev, "%s - error = %2x\n", __func__, status);
301 dev_dbg(&port->dev, "%s - write OK !\n", __func__);
305 static int read_immediate(struct usb_serial_port *port, u8 *buf, u8 count)
308 struct usb_serial *serial = port->serial;
311 /* send the data out the bulk port */
313 usb_bulk_msg(serial->dev,
314 usb_rcvbulkpipe(serial->dev,
315 port->bulk_in_endpointAddress), buf,
316 count, &actual, HZ * 1);
318 if (status != IUU_OPERATION_OK)
319 dev_dbg(&port->dev, "%s - error = %2x\n", __func__, status);
321 dev_dbg(&port->dev, "%s - read OK !\n", __func__);
325 static int iuu_led(struct usb_serial_port *port, unsigned int R,
326 unsigned int G, unsigned int B, u8 f)
330 buf = kmalloc(8, GFP_KERNEL);
334 buf[0] = IUU_SET_LED;
336 buf[2] = (R >> 8) & 0xFF;
338 buf[4] = (G >> 8) & 0xFF;
340 buf[6] = (B >> 8) & 0xFF;
342 status = bulk_immediate(port, buf, 8);
344 if (status != IUU_OPERATION_OK)
345 dev_dbg(&port->dev, "%s - led error status = %2x\n", __func__, status);
347 dev_dbg(&port->dev, "%s - led OK !\n", __func__);
348 return IUU_OPERATION_OK;
351 static void iuu_rgbf_fill_buffer(u8 *buf, u8 r1, u8 r2, u8 g1, u8 g2, u8 b1,
354 *buf++ = IUU_SET_LED;
364 static void iuu_led_activity_on(struct urb *urb)
366 struct usb_serial_port *port = urb->context;
368 char *buf_ptr = port->write_urb->transfer_buffer;
369 *buf_ptr++ = IUU_SET_LED;
371 get_random_bytes(buf_ptr, 6);
374 iuu_rgbf_fill_buffer(buf_ptr, 255, 255, 0, 0, 0, 0, 255);
377 usb_fill_bulk_urb(port->write_urb, port->serial->dev,
378 usb_sndbulkpipe(port->serial->dev,
379 port->bulk_out_endpointAddress),
380 port->write_urb->transfer_buffer, 8 ,
382 result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
385 static void iuu_led_activity_off(struct urb *urb)
387 struct usb_serial_port *port = urb->context;
389 char *buf_ptr = port->write_urb->transfer_buffer;
394 *buf_ptr++ = IUU_SET_LED;
395 iuu_rgbf_fill_buffer(buf_ptr, 0, 0, 255, 255, 0, 0, 255);
397 usb_fill_bulk_urb(port->write_urb, port->serial->dev,
398 usb_sndbulkpipe(port->serial->dev,
399 port->bulk_out_endpointAddress),
400 port->write_urb->transfer_buffer, 8 ,
402 result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
407 static int iuu_clk(struct usb_serial_port *port, int dwFrq)
410 struct iuu_private *priv = usb_get_serial_port_data(port);
413 u8 DIV = 0; /* 8bit */
414 u8 XDRV = 0; /* 8bit */
415 u8 PUMP = 0; /* 3bit */
416 u8 PBmsb = 0; /* 2bit */
417 u8 PBlsb = 0; /* 8bit */
418 u8 PO = 0; /* 1bit */
423 int frq = (int)dwFrq;
426 priv->buf[Count++] = IUU_UART_WRITE_I2C;
427 priv->buf[Count++] = FrqGenAdr << 1;
428 priv->buf[Count++] = 0x09;
429 priv->buf[Count++] = 0x00;
431 status = bulk_immediate(port, (u8 *) priv->buf, Count);
433 dev_dbg(&port->dev, "%s - write error\n", __func__);
436 } else if (frq == 3579000) {
441 } else if (frq == 3680000) {
446 } else if (frq == 6000000) {
452 unsigned int result = 0;
453 unsigned int tmp = 0;
458 unsigned int lP = 2055;
459 unsigned int lDiv = 4;
461 for (lQ = 2; lQ <= 47 && !found; lQ++)
462 for (lP = 2055; lP >= 8 && !found; lP--)
463 for (lDiv = 4; lDiv <= 127 && !found; lDiv++) {
464 tmp = (12000000 / lDiv) * (lP / lQ);
465 if (abs((int)(tmp - frq)) <
466 abs((int)(frq - result))) {
467 check2 = (12000000 / lQ);
470 check = (12000000 / lQ) * lP;
471 if (check > 400000000)
473 if (check < 100000000)
475 if (lDiv < 4 || lDiv > 127)
486 P2 = ((P - PO) / 2) - 4;
489 PBmsb = (P2 >> 8 & 0x03);
491 PO = (P >> 10) & 0x01;
494 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
495 priv->buf[Count++] = FrqGenAdr << 1;
496 priv->buf[Count++] = 0x09;
497 priv->buf[Count++] = 0x20; /* Adr = 0x09 */
498 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
499 priv->buf[Count++] = FrqGenAdr << 1;
500 priv->buf[Count++] = 0x0C;
501 priv->buf[Count++] = DIV; /* Adr = 0x0C */
502 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
503 priv->buf[Count++] = FrqGenAdr << 1;
504 priv->buf[Count++] = 0x12;
505 priv->buf[Count++] = XDRV; /* Adr = 0x12 */
506 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
507 priv->buf[Count++] = FrqGenAdr << 1;
508 priv->buf[Count++] = 0x13;
509 priv->buf[Count++] = 0x6B; /* Adr = 0x13 */
510 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
511 priv->buf[Count++] = FrqGenAdr << 1;
512 priv->buf[Count++] = 0x40;
513 priv->buf[Count++] = (0xC0 | ((PUMP & 0x07) << 2)) |
514 (PBmsb & 0x03); /* Adr = 0x40 */
515 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
516 priv->buf[Count++] = FrqGenAdr << 1;
517 priv->buf[Count++] = 0x41;
518 priv->buf[Count++] = PBlsb; /* Adr = 0x41 */
519 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
520 priv->buf[Count++] = FrqGenAdr << 1;
521 priv->buf[Count++] = 0x42;
522 priv->buf[Count++] = Q | (((PO & 0x01) << 7)); /* Adr = 0x42 */
523 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
524 priv->buf[Count++] = FrqGenAdr << 1;
525 priv->buf[Count++] = 0x44;
526 priv->buf[Count++] = (char)0xFF; /* Adr = 0x44 */
527 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
528 priv->buf[Count++] = FrqGenAdr << 1;
529 priv->buf[Count++] = 0x45;
530 priv->buf[Count++] = (char)0xFE; /* Adr = 0x45 */
531 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
532 priv->buf[Count++] = FrqGenAdr << 1;
533 priv->buf[Count++] = 0x46;
534 priv->buf[Count++] = 0x7F; /* Adr = 0x46 */
535 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
536 priv->buf[Count++] = FrqGenAdr << 1;
537 priv->buf[Count++] = 0x47;
538 priv->buf[Count++] = (char)0x84; /* Adr = 0x47 */
540 status = bulk_immediate(port, (u8 *) priv->buf, Count);
541 if (status != IUU_OPERATION_OK)
542 dev_dbg(&port->dev, "%s - write error\n", __func__);
546 static int iuu_uart_flush(struct usb_serial_port *port)
548 struct device *dev = &port->dev;
551 u8 rxcmd = IUU_UART_RX;
552 struct iuu_private *priv = usb_get_serial_port_data(port);
554 if (iuu_led(port, 0xF000, 0, 0, 0xFF) < 0)
557 for (i = 0; i < 2; i++) {
558 status = bulk_immediate(port, &rxcmd, 1);
559 if (status != IUU_OPERATION_OK) {
560 dev_dbg(dev, "%s - uart_flush_write error\n", __func__);
564 status = read_immediate(port, &priv->len, 1);
565 if (status != IUU_OPERATION_OK) {
566 dev_dbg(dev, "%s - uart_flush_read error\n", __func__);
571 dev_dbg(dev, "%s - uart_flush datalen is : %i\n", __func__, priv->len);
572 status = read_immediate(port, priv->buf, priv->len);
573 if (status != IUU_OPERATION_OK) {
574 dev_dbg(dev, "%s - uart_flush_read error\n", __func__);
579 dev_dbg(dev, "%s - uart_flush_read OK!\n", __func__);
580 iuu_led(port, 0, 0xF000, 0, 0xFF);
584 static void read_buf_callback(struct urb *urb)
586 struct usb_serial_port *port = urb->context;
587 unsigned char *data = urb->transfer_buffer;
588 struct tty_struct *tty;
589 int status = urb->status;
592 if (status == -EPROTO) {
593 /* reschedule needed */
598 dev_dbg(&port->dev, "%s - %i chars to write\n", __func__, urb->actual_length);
599 tty = tty_port_tty_get(&port->port);
601 dev_dbg(&port->dev, "%s - data is NULL !!!\n", __func__);
602 if (tty && urb->actual_length && data) {
603 tty_insert_flip_string(tty, data, urb->actual_length);
604 tty_flip_buffer_push(tty);
607 iuu_led_activity_on(urb);
610 static int iuu_bulk_write(struct usb_serial_port *port)
612 struct iuu_private *priv = usb_get_serial_port_data(port);
616 char *buf_ptr = port->write_urb->transfer_buffer;
618 spin_lock_irqsave(&priv->lock, flags);
619 *buf_ptr++ = IUU_UART_ESC;
620 *buf_ptr++ = IUU_UART_TX;
621 *buf_ptr++ = priv->writelen;
623 memcpy(buf_ptr, priv->writebuf, priv->writelen);
624 buf_len = priv->writelen;
626 spin_unlock_irqrestore(&priv->lock, flags);
627 dev_dbg(&port->dev, "%s - writing %i chars : %*ph\n", __func__,
628 buf_len, buf_len, buf_ptr);
629 usb_fill_bulk_urb(port->write_urb, port->serial->dev,
630 usb_sndbulkpipe(port->serial->dev,
631 port->bulk_out_endpointAddress),
632 port->write_urb->transfer_buffer, buf_len + 3,
634 result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
635 usb_serial_port_softint(port);
639 static int iuu_read_buf(struct usb_serial_port *port, int len)
643 usb_fill_bulk_urb(port->read_urb, port->serial->dev,
644 usb_rcvbulkpipe(port->serial->dev,
645 port->bulk_in_endpointAddress),
646 port->read_urb->transfer_buffer, len,
647 read_buf_callback, port);
648 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
652 static void iuu_uart_read_callback(struct urb *urb)
654 struct usb_serial_port *port = urb->context;
655 struct iuu_private *priv = usb_get_serial_port_data(port);
657 int status = urb->status;
660 unsigned char *data = urb->transfer_buffer;
664 dev_dbg(&port->dev, "%s - status = %d\n", __func__, status);
669 dev_dbg(&port->dev, "%s - data is NULL !!!\n", __func__);
671 if (urb->actual_length == 1 && data != NULL)
674 if (urb->actual_length > 1) {
675 dev_dbg(&port->dev, "%s - urb->actual_length = %i\n", __func__,
680 /* if len > 0 call readbuf */
682 if (len > 0 && error == 0) {
683 dev_dbg(&port->dev, "%s - call read buf - len to read is %i\n",
685 status = iuu_read_buf(port, len);
688 /* need to update status ? */
689 if (priv->poll > 99) {
690 status = iuu_status(port);
695 /* reset waiting ? */
697 if (priv->reset == 1) {
698 status = iuu_reset(port, 0xC);
701 /* Writebuf is waiting */
702 spin_lock_irqsave(&priv->lock, flags);
703 if (priv->writelen > 0) {
704 spin_unlock_irqrestore(&priv->lock, flags);
705 status = iuu_bulk_write(port);
708 spin_unlock_irqrestore(&priv->lock, flags);
709 /* if nothing to write call again rxcmd */
710 dev_dbg(&port->dev, "%s - rxcmd recall\n", __func__);
711 iuu_led_activity_off(urb);
714 static int iuu_uart_write(struct tty_struct *tty, struct usb_serial_port *port,
715 const u8 *buf, int count)
717 struct iuu_private *priv = usb_get_serial_port_data(port);
723 spin_lock_irqsave(&priv->lock, flags);
725 /* fill the buffer */
726 memcpy(priv->writebuf + priv->writelen, buf, count);
727 priv->writelen += count;
728 spin_unlock_irqrestore(&priv->lock, flags);
733 static void read_rxcmd_callback(struct urb *urb)
735 struct usb_serial_port *port = urb->context;
737 int status = urb->status;
744 usb_fill_bulk_urb(port->read_urb, port->serial->dev,
745 usb_rcvbulkpipe(port->serial->dev,
746 port->bulk_in_endpointAddress),
747 port->read_urb->transfer_buffer, 256,
748 iuu_uart_read_callback, port);
749 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
750 dev_dbg(&port->dev, "%s - submit result = %d\n", __func__, result);
753 static int iuu_uart_on(struct usb_serial_port *port)
758 buf = kmalloc(sizeof(u8) * 4, GFP_KERNEL);
763 buf[0] = IUU_UART_ENABLE;
764 buf[1] = (u8) ((IUU_BAUD_9600 >> 8) & 0x00FF);
765 buf[2] = (u8) (0x00FF & IUU_BAUD_9600);
766 buf[3] = (u8) (0x0F0 & IUU_ONE_STOP_BIT) | (0x07 & IUU_PARITY_EVEN);
768 status = bulk_immediate(port, buf, 4);
769 if (status != IUU_OPERATION_OK) {
770 dev_dbg(&port->dev, "%s - uart_on error\n", __func__);
771 goto uart_enable_failed;
773 /* iuu_reset() the card after iuu_uart_on() */
774 status = iuu_uart_flush(port);
775 if (status != IUU_OPERATION_OK)
776 dev_dbg(&port->dev, "%s - uart_flush error\n", __func__);
782 /* Diables the IUU UART (a.k.a. the Phoenix voiderface) */
783 static int iuu_uart_off(struct usb_serial_port *port)
787 buf = kmalloc(1, GFP_KERNEL);
790 buf[0] = IUU_UART_DISABLE;
792 status = bulk_immediate(port, buf, 1);
793 if (status != IUU_OPERATION_OK)
794 dev_dbg(&port->dev, "%s - uart_off error\n", __func__);
800 static int iuu_uart_baud(struct usb_serial_port *port, u32 baud_base,
801 u32 *actual, u8 parity)
809 unsigned int T1FrekvensHZ = 0;
811 dev_dbg(&port->dev, "%s - enter baud_base=%d\n", __func__, baud_base);
812 dataout = kmalloc(sizeof(u8) * 5, GFP_KERNEL);
816 /*baud = (((priv->clk / 35) * baud_base) / 100000); */
819 if (baud < 1200 || baud > 230400) {
821 return IUU_INVALID_PARAMETER;
825 T1FrekvensHZ = 500000;
830 T1FrekvensHZ = 2000000;
835 T1FrekvensHZ = 6000000;
840 T1FrekvensHZ = 24000000;
843 T1reload = 256 - (u8) (T1FrekvensHZ / (baud * 2));
845 /* magic number here: ENTER_FIRMWARE_UPDATE; */
846 dataout[DataCount++] = IUU_UART_ESC;
847 /* magic number here: CHANGE_BAUD; */
848 dataout[DataCount++] = IUU_UART_CHANGE;
849 dataout[DataCount++] = T1Frekvens;
850 dataout[DataCount++] = T1reload;
852 *actual = (T1FrekvensHZ / (256 - T1reload)) / 2;
854 switch (parity & 0x0F) {
855 case IUU_PARITY_NONE:
856 dataout[DataCount++] = 0x00;
858 case IUU_PARITY_EVEN:
859 dataout[DataCount++] = 0x01;
862 dataout[DataCount++] = 0x02;
864 case IUU_PARITY_MARK:
865 dataout[DataCount++] = 0x03;
867 case IUU_PARITY_SPACE:
868 dataout[DataCount++] = 0x04;
872 return IUU_INVALID_PARAMETER;
876 switch (parity & 0xF0) {
877 case IUU_ONE_STOP_BIT:
878 dataout[DataCount - 1] |= IUU_ONE_STOP_BIT;
881 case IUU_TWO_STOP_BITS:
882 dataout[DataCount - 1] |= IUU_TWO_STOP_BITS;
886 return IUU_INVALID_PARAMETER;
890 status = bulk_immediate(port, dataout, DataCount);
891 if (status != IUU_OPERATION_OK)
892 dev_dbg(&port->dev, "%s - uart_off error\n", __func__);
897 static void iuu_set_termios(struct tty_struct *tty,
898 struct usb_serial_port *port, struct ktermios *old_termios)
900 const u32 supported_mask = CMSPAR|PARENB|PARODD;
901 struct iuu_private *priv = usb_get_serial_port_data(port);
902 unsigned int cflag = tty->termios.c_cflag;
908 u32 newval = cflag & supported_mask;
910 /* Just use the ospeed. ispeed should be the same. */
911 baud = tty->termios.c_ospeed;
913 dev_dbg(&port->dev, "%s - enter c_ospeed or baud=%d\n", __func__, baud);
915 /* compute the parity parameter */
917 if (cflag & CMSPAR) { /* Using mark space */
919 parity |= IUU_PARITY_SPACE;
921 parity |= IUU_PARITY_MARK;
922 } else if (!(cflag & PARENB)) {
923 parity |= IUU_PARITY_NONE;
925 } else if (cflag & PARODD)
926 parity |= IUU_PARITY_ODD;
928 parity |= IUU_PARITY_EVEN;
930 parity |= (cflag & CSTOPB ? IUU_TWO_STOP_BITS : IUU_ONE_STOP_BIT);
933 status = iuu_uart_baud(port,
934 baud * priv->boost / 100,
937 /* set the termios value to the real one, so the user now what has
938 * changed. We support few fields so its easies to copy the old hw
939 * settings back over and then adjust them
942 tty_termios_copy_hw(&tty->termios, old_termios);
943 if (status != 0) /* Set failed - return old bits */
945 /* Re-encode speed, parity and csize */
946 tty_encode_baud_rate(tty, baud, baud);
947 tty->termios.c_cflag &= ~(supported_mask|CSIZE);
948 tty->termios.c_cflag |= newval | csize;
951 static void iuu_close(struct usb_serial_port *port)
953 /* iuu_led (port,255,0,0,0); */
954 struct usb_serial *serial;
956 serial = port->serial;
963 /* shutdown our urbs */
964 dev_dbg(&port->dev, "%s - shutting down urbs\n", __func__);
965 usb_kill_urb(port->write_urb);
966 usb_kill_urb(port->read_urb);
967 usb_kill_urb(port->interrupt_in_urb);
968 iuu_led(port, 0, 0, 0xF000, 0xFF);
972 static void iuu_init_termios(struct tty_struct *tty)
974 tty->termios = tty_std_termios;
975 tty->termios.c_cflag = CLOCAL | CREAD | CS8 | B9600
976 | TIOCM_CTS | CSTOPB | PARENB;
977 tty->termios.c_ispeed = 9600;
978 tty->termios.c_ospeed = 9600;
979 tty->termios.c_lflag = 0;
980 tty->termios.c_oflag = 0;
981 tty->termios.c_iflag = 0;
984 static int iuu_open(struct tty_struct *tty, struct usb_serial_port *port)
986 struct usb_serial *serial = port->serial;
987 struct device *dev = &port->dev;
992 struct iuu_private *priv = usb_get_serial_port_data(port);
994 baud = tty->termios.c_ospeed;
995 tty->termios.c_ispeed = baud;
996 /* Re-encode speed */
997 tty_encode_baud_rate(tty, baud, baud);
999 dev_dbg(dev, "%s - baud %d\n", __func__, baud);
1000 usb_clear_halt(serial->dev, port->write_urb->pipe);
1001 usb_clear_halt(serial->dev, port->read_urb->pipe);
1003 buf = kmalloc(10, GFP_KERNEL);
1009 /* initialize writebuf */
1010 #define FISH(a, b, c, d) do { \
1011 result = usb_control_msg(port->serial->dev, \
1012 usb_rcvctrlpipe(port->serial->dev, 0), \
1013 b, a, c, d, buf, 1, 1000); \
1014 dev_dbg(dev, "0x%x:0x%x:0x%x:0x%x %d - %x\n", a, b, c, d, result, \
1015 buf[0]); } while (0);
1017 #define SOUP(a, b, c, d) do { \
1018 result = usb_control_msg(port->serial->dev, \
1019 usb_sndctrlpipe(port->serial->dev, 0), \
1020 b, a, c, d, NULL, 0, 1000); \
1021 dev_dbg(dev, "0x%x:0x%x:0x%x:0x%x %d\n", a, b, c, d, result); } while (0)
1023 /* This is not UART related but IUU USB driver related or something */
1024 /* like that. Basically no IUU will accept any commands from the USB */
1025 /* host unless it has received the following message */
1026 /* sprintf(buf ,"%c%c%c%c",0x03,0x02,0x02,0x0); */
1028 SOUP(0x03, 0x02, 0x02, 0x0);
1030 iuu_led(port, 0xF000, 0xF000, 0, 0xFF);
1034 priv->boost = boost;
1036 switch (clockmode) {
1037 case 2: /* 3.680 Mhz */
1038 priv->clk = IUU_CLK_3680000;
1039 iuu_clk(port, IUU_CLK_3680000 * boost / 100);
1041 iuu_uart_baud(port, baud * boost / 100, &actual,
1044 case 3: /* 6.00 Mhz */
1045 iuu_clk(port, IUU_CLK_6000000 * boost / 100);
1046 priv->clk = IUU_CLK_6000000;
1047 /* Ratio of 6000000 to 3500000 for baud 9600 */
1049 iuu_uart_baud(port, 16457 * boost / 100, &actual,
1052 default: /* 3.579 Mhz */
1053 iuu_clk(port, IUU_CLK_3579000 * boost / 100);
1054 priv->clk = IUU_CLK_3579000;
1056 iuu_uart_baud(port, baud * boost / 100, &actual,
1060 /* set the cardin cardout signals */
1067 iuu_cardin = TIOCM_CD;
1072 iuu_cardout = TIOCM_CD;
1075 iuu_cardin = TIOCM_DSR;
1080 iuu_cardout = TIOCM_DSR;
1083 iuu_cardin = TIOCM_CTS;
1088 iuu_cardout = TIOCM_CTS;
1091 iuu_cardin = TIOCM_RNG;
1096 iuu_cardout = TIOCM_RNG;
1099 iuu_uart_flush(port);
1101 dev_dbg(dev, "%s - initialization done\n", __func__);
1103 memset(port->write_urb->transfer_buffer, IUU_UART_RX, 1);
1104 usb_fill_bulk_urb(port->write_urb, port->serial->dev,
1105 usb_sndbulkpipe(port->serial->dev,
1106 port->bulk_out_endpointAddress),
1107 port->write_urb->transfer_buffer, 1,
1108 read_rxcmd_callback, port);
1109 result = usb_submit_urb(port->write_urb, GFP_KERNEL);
1111 dev_err(dev, "%s - failed submitting read urb, error %d\n", __func__, result);
1114 dev_dbg(dev, "%s - rxcmd OK\n", __func__);
1120 /* how to change VCC */
1121 static int iuu_vcc_set(struct usb_serial_port *port, unsigned int vcc)
1126 buf = kmalloc(5, GFP_KERNEL);
1130 buf[0] = IUU_SET_VCC;
1131 buf[1] = vcc & 0xFF;
1132 buf[2] = (vcc >> 8) & 0xFF;
1133 buf[3] = (vcc >> 16) & 0xFF;
1134 buf[4] = (vcc >> 24) & 0xFF;
1136 status = bulk_immediate(port, buf, 5);
1139 if (status != IUU_OPERATION_OK)
1140 dev_dbg(&port->dev, "%s - vcc error status = %2x\n", __func__, status);
1142 dev_dbg(&port->dev, "%s - vcc OK !\n", __func__);
1151 static ssize_t show_vcc_mode(struct device *dev,
1152 struct device_attribute *attr, char *buf)
1154 struct usb_serial_port *port = to_usb_serial_port(dev);
1155 struct iuu_private *priv = usb_get_serial_port_data(port);
1157 return sprintf(buf, "%d\n", priv->vcc);
1160 static ssize_t store_vcc_mode(struct device *dev,
1161 struct device_attribute *attr, const char *buf, size_t count)
1163 struct usb_serial_port *port = to_usb_serial_port(dev);
1164 struct iuu_private *priv = usb_get_serial_port_data(port);
1167 if (strict_strtoul(buf, 10, &v)) {
1168 dev_err(dev, "%s - vcc_mode: %s is not a unsigned long\n",
1170 goto fail_store_vcc_mode;
1173 dev_dbg(dev, "%s: setting vcc_mode = %ld", __func__, v);
1175 if ((v != 3) && (v != 5)) {
1176 dev_err(dev, "%s - vcc_mode %ld is invalid\n", __func__, v);
1178 iuu_vcc_set(port, v);
1181 fail_store_vcc_mode:
1185 static DEVICE_ATTR(vcc_mode, S_IRUSR | S_IWUSR, show_vcc_mode,
1188 static int iuu_create_sysfs_attrs(struct usb_serial_port *port)
1190 return device_create_file(&port->dev, &dev_attr_vcc_mode);
1193 static int iuu_remove_sysfs_attrs(struct usb_serial_port *port)
1195 device_remove_file(&port->dev, &dev_attr_vcc_mode);
1200 * End Sysfs Attributes
1203 static struct usb_serial_driver iuu_device = {
1205 .owner = THIS_MODULE,
1206 .name = "iuu_phoenix",
1208 .id_table = id_table,
1210 .bulk_in_size = 512,
1211 .bulk_out_size = 512,
1214 .write = iuu_uart_write,
1215 .read_bulk_callback = iuu_uart_read_callback,
1216 .tiocmget = iuu_tiocmget,
1217 .tiocmset = iuu_tiocmset,
1218 .set_termios = iuu_set_termios,
1219 .init_termios = iuu_init_termios,
1220 .port_probe = iuu_port_probe,
1221 .port_remove = iuu_port_remove,
1224 static struct usb_serial_driver * const serial_drivers[] = {
1228 module_usb_serial_driver(serial_drivers, id_table);
1230 MODULE_AUTHOR("Alain Degreffe eczema@ecze.com");
1232 MODULE_DESCRIPTION(DRIVER_DESC);
1233 MODULE_LICENSE("GPL");
1235 MODULE_VERSION(DRIVER_VERSION);
1237 module_param(xmas, bool, S_IRUGO | S_IWUSR);
1238 MODULE_PARM_DESC(xmas, "Xmas colors enabled or not");
1240 module_param(boost, int, S_IRUGO | S_IWUSR);
1241 MODULE_PARM_DESC(boost, "Card overclock boost (in percent 100-500)");
1243 module_param(clockmode, int, S_IRUGO | S_IWUSR);
1244 MODULE_PARM_DESC(clockmode, "Card clock mode (1=3.579 MHz, 2=3.680 MHz, "
1247 module_param(cdmode, int, S_IRUGO | S_IWUSR);
1248 MODULE_PARM_DESC(cdmode, "Card detect mode (0=none, 1=CD, 2=!CD, 3=DSR, "
1249 "4=!DSR, 5=CTS, 6=!CTS, 7=RING, 8=!RING)");
1251 module_param(vcc_default, int, S_IRUGO | S_IWUSR);
1252 MODULE_PARM_DESC(vcc_default, "Set default VCC (either 3 for 3.3V or 5 "
1253 "for 5V). Default to 5.");