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>
36 #ifdef CONFIG_USB_SERIAL_DEBUG
37 static bool debug = 1;
45 #define DRIVER_VERSION "v0.12"
46 #define DRIVER_DESC "Infinity USB Unlimited Phoenix driver"
48 static const struct usb_device_id id_table[] = {
49 {USB_DEVICE(IUU_USB_VENDOR_ID, IUU_USB_PRODUCT_ID)},
50 {} /* Terminating entry */
52 MODULE_DEVICE_TABLE(usb, id_table);
55 static int boost = 100;
56 static int clockmode = 1;
57 static int cdmode = 1;
58 static int iuu_cardin;
59 static int iuu_cardout;
61 static int vcc_default = 5;
63 static void read_rxcmd_callback(struct urb *urb);
66 spinlock_t lock; /* store irq state */
67 wait_queue_head_t delta_msr_wait;
69 int tiostatus; /* store IUART SIGNAL for tiocmget call */
70 u8 reset; /* if 1 reset is needed */
71 int poll; /* number of poll */
72 u8 *writebuf; /* buffer for writing to device */
73 int writelen; /* num of byte to write to device */
74 u8 *buf; /* used for initialize speed */
75 u8 *dbgbuf; /* debug buffer */
77 int vcc; /* vcc (either 3 or 5 V) */
84 static void iuu_free_buf(struct iuu_private *priv)
88 kfree(priv->writebuf);
91 static int iuu_alloc_buf(struct iuu_private *priv)
93 priv->buf = kzalloc(256, GFP_KERNEL);
94 priv->dbgbuf = kzalloc(256, GFP_KERNEL);
95 priv->writebuf = kzalloc(256, GFP_KERNEL);
96 if (!priv->buf || !priv->dbgbuf || !priv->writebuf) {
98 dbg("%s problem allocation buffer", __func__);
101 dbg("%s - Privates buffers allocation success", __func__);
105 static int iuu_startup(struct usb_serial *serial)
107 struct iuu_private *priv;
108 priv = kzalloc(sizeof(struct iuu_private), GFP_KERNEL);
109 dbg("%s- priv allocation success", __func__);
112 if (iuu_alloc_buf(priv)) {
116 priv->vcc = vcc_default;
117 spin_lock_init(&priv->lock);
118 init_waitqueue_head(&priv->delta_msr_wait);
119 usb_set_serial_port_data(serial->port[0], priv);
123 /* Release function */
124 static void iuu_release(struct usb_serial *serial)
126 struct usb_serial_port *port = serial->port[0];
127 struct iuu_private *priv = usb_get_serial_port_data(port);
133 dbg("%s - I will free all", __func__);
134 usb_set_serial_port_data(port, NULL);
136 dbg("%s - priv is not anymore in port structure", __func__);
139 dbg("%s priv is now kfree", __func__);
143 static int iuu_tiocmset(struct tty_struct *tty,
144 unsigned int set, unsigned int clear)
146 struct usb_serial_port *port = tty->driver_data;
147 struct iuu_private *priv = usb_get_serial_port_data(port);
150 /* FIXME: locking on tiomstatus */
151 dbg("%s (%d) msg : SET = 0x%04x, CLEAR = 0x%04x ", __func__,
152 port->number, set, clear);
154 spin_lock_irqsave(&priv->lock, flags);
156 if ((set & TIOCM_RTS) && !(priv->tiostatus == TIOCM_RTS)) {
157 dbg("%s TIOCMSET RESET called !!!", __func__);
161 priv->tiostatus = TIOCM_RTS;
163 spin_unlock_irqrestore(&priv->lock, flags);
167 /* This is used to provide a carrier detect mechanism
168 * When a card is present, the response is 0x00
169 * When no card , the reader respond with TIOCM_CD
170 * This is known as CD autodetect mechanism
172 static int iuu_tiocmget(struct tty_struct *tty)
174 struct usb_serial_port *port = tty->driver_data;
175 struct iuu_private *priv = usb_get_serial_port_data(port);
179 spin_lock_irqsave(&priv->lock, flags);
180 rc = priv->tiostatus;
181 spin_unlock_irqrestore(&priv->lock, flags);
186 static void iuu_rxcmd(struct urb *urb)
188 struct usb_serial_port *port = urb->context;
190 int status = urb->status;
193 dbg("%s - status = %d", __func__, status);
199 memset(port->write_urb->transfer_buffer, IUU_UART_RX, 1);
200 usb_fill_bulk_urb(port->write_urb, port->serial->dev,
201 usb_sndbulkpipe(port->serial->dev,
202 port->bulk_out_endpointAddress),
203 port->write_urb->transfer_buffer, 1,
204 read_rxcmd_callback, port);
205 result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
208 static int iuu_reset(struct usb_serial_port *port, u8 wt)
210 struct iuu_private *priv = usb_get_serial_port_data(port);
212 char *buf_ptr = port->write_urb->transfer_buffer;
214 /* Prepare the reset sequence */
216 *buf_ptr++ = IUU_RST_SET;
217 *buf_ptr++ = IUU_DELAY_MS;
219 *buf_ptr = IUU_RST_CLEAR;
221 /* send the sequence */
223 usb_fill_bulk_urb(port->write_urb,
225 usb_sndbulkpipe(port->serial->dev,
226 port->bulk_out_endpointAddress),
227 port->write_urb->transfer_buffer, 4, iuu_rxcmd, port);
228 result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
239 static void iuu_update_status_callback(struct urb *urb)
241 struct usb_serial_port *port = urb->context;
242 struct iuu_private *priv = usb_get_serial_port_data(port);
244 int status = urb->status;
247 dbg("%s - status = %d", __func__, status);
252 st = urb->transfer_buffer;
253 dbg("%s - enter", __func__);
254 if (urb->actual_length == 1) {
257 priv->tiostatus = iuu_cardout;
260 priv->tiostatus = iuu_cardin;
263 priv->tiostatus = iuu_cardin;
269 static void iuu_status_callback(struct urb *urb)
271 struct usb_serial_port *port = urb->context;
273 int status = urb->status;
275 dbg("%s - status = %d", __func__, status);
276 usb_fill_bulk_urb(port->read_urb, port->serial->dev,
277 usb_rcvbulkpipe(port->serial->dev,
278 port->bulk_in_endpointAddress),
279 port->read_urb->transfer_buffer, 256,
280 iuu_update_status_callback, port);
281 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
284 static int iuu_status(struct usb_serial_port *port)
288 memset(port->write_urb->transfer_buffer, IUU_GET_STATE_REGISTER, 1);
289 usb_fill_bulk_urb(port->write_urb, port->serial->dev,
290 usb_sndbulkpipe(port->serial->dev,
291 port->bulk_out_endpointAddress),
292 port->write_urb->transfer_buffer, 1,
293 iuu_status_callback, port);
294 result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
299 static int bulk_immediate(struct usb_serial_port *port, u8 *buf, u8 count)
302 struct usb_serial *serial = port->serial;
305 /* send the data out the bulk port */
308 usb_bulk_msg(serial->dev,
309 usb_sndbulkpipe(serial->dev,
310 port->bulk_out_endpointAddress), buf,
311 count, &actual, HZ * 1);
313 if (status != IUU_OPERATION_OK)
314 dbg("%s - error = %2x", __func__, status);
316 dbg("%s - write OK !", __func__);
320 static int read_immediate(struct usb_serial_port *port, u8 *buf, u8 count)
323 struct usb_serial *serial = port->serial;
326 /* send the data out the bulk port */
328 usb_bulk_msg(serial->dev,
329 usb_rcvbulkpipe(serial->dev,
330 port->bulk_in_endpointAddress), buf,
331 count, &actual, HZ * 1);
333 if (status != IUU_OPERATION_OK)
334 dbg("%s - error = %2x", __func__, status);
336 dbg("%s - read OK !", __func__);
340 static int iuu_led(struct usb_serial_port *port, unsigned int R,
341 unsigned int G, unsigned int B, u8 f)
345 buf = kmalloc(8, GFP_KERNEL);
349 buf[0] = IUU_SET_LED;
351 buf[2] = (R >> 8) & 0xFF;
353 buf[4] = (G >> 8) & 0xFF;
355 buf[6] = (B >> 8) & 0xFF;
357 status = bulk_immediate(port, buf, 8);
359 if (status != IUU_OPERATION_OK)
360 dbg("%s - led error status = %2x", __func__, status);
362 dbg("%s - led OK !", __func__);
363 return IUU_OPERATION_OK;
366 static void iuu_rgbf_fill_buffer(u8 *buf, u8 r1, u8 r2, u8 g1, u8 g2, u8 b1,
369 *buf++ = IUU_SET_LED;
379 static void iuu_led_activity_on(struct urb *urb)
381 struct usb_serial_port *port = urb->context;
383 char *buf_ptr = port->write_urb->transfer_buffer;
384 *buf_ptr++ = IUU_SET_LED;
386 get_random_bytes(buf_ptr, 6);
389 iuu_rgbf_fill_buffer(buf_ptr, 255, 255, 0, 0, 0, 0, 255);
392 usb_fill_bulk_urb(port->write_urb, port->serial->dev,
393 usb_sndbulkpipe(port->serial->dev,
394 port->bulk_out_endpointAddress),
395 port->write_urb->transfer_buffer, 8 ,
397 result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
400 static void iuu_led_activity_off(struct urb *urb)
402 struct usb_serial_port *port = urb->context;
404 char *buf_ptr = port->write_urb->transfer_buffer;
409 *buf_ptr++ = IUU_SET_LED;
410 iuu_rgbf_fill_buffer(buf_ptr, 0, 0, 255, 255, 0, 0, 255);
412 usb_fill_bulk_urb(port->write_urb, port->serial->dev,
413 usb_sndbulkpipe(port->serial->dev,
414 port->bulk_out_endpointAddress),
415 port->write_urb->transfer_buffer, 8 ,
417 result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
422 static int iuu_clk(struct usb_serial_port *port, int dwFrq)
425 struct iuu_private *priv = usb_get_serial_port_data(port);
428 u8 DIV = 0; /* 8bit */
429 u8 XDRV = 0; /* 8bit */
430 u8 PUMP = 0; /* 3bit */
431 u8 PBmsb = 0; /* 2bit */
432 u8 PBlsb = 0; /* 8bit */
433 u8 PO = 0; /* 1bit */
438 int frq = (int)dwFrq;
441 priv->buf[Count++] = IUU_UART_WRITE_I2C;
442 priv->buf[Count++] = FrqGenAdr << 1;
443 priv->buf[Count++] = 0x09;
444 priv->buf[Count++] = 0x00;
446 status = bulk_immediate(port, (u8 *) priv->buf, Count);
448 dbg("%s - write error ", __func__);
451 } else if (frq == 3579000) {
456 } else if (frq == 3680000) {
461 } else if (frq == 6000000) {
467 unsigned int result = 0;
468 unsigned int tmp = 0;
473 unsigned int lP = 2055;
474 unsigned int lDiv = 4;
476 for (lQ = 2; lQ <= 47 && !found; lQ++)
477 for (lP = 2055; lP >= 8 && !found; lP--)
478 for (lDiv = 4; lDiv <= 127 && !found; lDiv++) {
479 tmp = (12000000 / lDiv) * (lP / lQ);
480 if (abs((int)(tmp - frq)) <
481 abs((int)(frq - result))) {
482 check2 = (12000000 / lQ);
485 check = (12000000 / lQ) * lP;
486 if (check > 400000000)
488 if (check < 100000000)
490 if (lDiv < 4 || lDiv > 127)
501 P2 = ((P - PO) / 2) - 4;
504 PBmsb = (P2 >> 8 & 0x03);
506 PO = (P >> 10) & 0x01;
509 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
510 priv->buf[Count++] = FrqGenAdr << 1;
511 priv->buf[Count++] = 0x09;
512 priv->buf[Count++] = 0x20; /* Adr = 0x09 */
513 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
514 priv->buf[Count++] = FrqGenAdr << 1;
515 priv->buf[Count++] = 0x0C;
516 priv->buf[Count++] = DIV; /* Adr = 0x0C */
517 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
518 priv->buf[Count++] = FrqGenAdr << 1;
519 priv->buf[Count++] = 0x12;
520 priv->buf[Count++] = XDRV; /* Adr = 0x12 */
521 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
522 priv->buf[Count++] = FrqGenAdr << 1;
523 priv->buf[Count++] = 0x13;
524 priv->buf[Count++] = 0x6B; /* Adr = 0x13 */
525 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
526 priv->buf[Count++] = FrqGenAdr << 1;
527 priv->buf[Count++] = 0x40;
528 priv->buf[Count++] = (0xC0 | ((PUMP & 0x07) << 2)) |
529 (PBmsb & 0x03); /* Adr = 0x40 */
530 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
531 priv->buf[Count++] = FrqGenAdr << 1;
532 priv->buf[Count++] = 0x41;
533 priv->buf[Count++] = PBlsb; /* Adr = 0x41 */
534 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
535 priv->buf[Count++] = FrqGenAdr << 1;
536 priv->buf[Count++] = 0x42;
537 priv->buf[Count++] = Q | (((PO & 0x01) << 7)); /* Adr = 0x42 */
538 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
539 priv->buf[Count++] = FrqGenAdr << 1;
540 priv->buf[Count++] = 0x44;
541 priv->buf[Count++] = (char)0xFF; /* Adr = 0x44 */
542 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
543 priv->buf[Count++] = FrqGenAdr << 1;
544 priv->buf[Count++] = 0x45;
545 priv->buf[Count++] = (char)0xFE; /* Adr = 0x45 */
546 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
547 priv->buf[Count++] = FrqGenAdr << 1;
548 priv->buf[Count++] = 0x46;
549 priv->buf[Count++] = 0x7F; /* Adr = 0x46 */
550 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */
551 priv->buf[Count++] = FrqGenAdr << 1;
552 priv->buf[Count++] = 0x47;
553 priv->buf[Count++] = (char)0x84; /* Adr = 0x47 */
555 status = bulk_immediate(port, (u8 *) priv->buf, Count);
556 if (status != IUU_OPERATION_OK)
557 dbg("%s - write error ", __func__);
561 static int iuu_uart_flush(struct usb_serial_port *port)
565 u8 rxcmd = IUU_UART_RX;
566 struct iuu_private *priv = usb_get_serial_port_data(port);
568 if (iuu_led(port, 0xF000, 0, 0, 0xFF) < 0)
571 for (i = 0; i < 2; i++) {
572 status = bulk_immediate(port, &rxcmd, 1);
573 if (status != IUU_OPERATION_OK) {
574 dbg("%s - uart_flush_write error", __func__);
578 status = read_immediate(port, &priv->len, 1);
579 if (status != IUU_OPERATION_OK) {
580 dbg("%s - uart_flush_read error", __func__);
585 dbg("%s - uart_flush datalen is : %i ", __func__,
587 status = read_immediate(port, priv->buf, priv->len);
588 if (status != IUU_OPERATION_OK) {
589 dbg("%s - uart_flush_read error", __func__);
594 dbg("%s - uart_flush_read OK!", __func__);
595 iuu_led(port, 0, 0xF000, 0, 0xFF);
599 static void read_buf_callback(struct urb *urb)
601 struct usb_serial_port *port = urb->context;
602 unsigned char *data = urb->transfer_buffer;
603 struct tty_struct *tty;
604 int status = urb->status;
607 if (status == -EPROTO) {
608 /* reschedule needed */
613 dbg("%s - %i chars to write", __func__, urb->actual_length);
614 tty = tty_port_tty_get(&port->port);
616 dbg("%s - data is NULL !!!", __func__);
617 if (tty && urb->actual_length && data) {
618 tty_insert_flip_string(tty, data, urb->actual_length);
619 tty_flip_buffer_push(tty);
622 iuu_led_activity_on(urb);
625 static int iuu_bulk_write(struct usb_serial_port *port)
627 struct iuu_private *priv = usb_get_serial_port_data(port);
632 char *buf_ptr = port->write_urb->transfer_buffer;
634 spin_lock_irqsave(&priv->lock, flags);
635 *buf_ptr++ = IUU_UART_ESC;
636 *buf_ptr++ = IUU_UART_TX;
637 *buf_ptr++ = priv->writelen;
639 memcpy(buf_ptr, priv->writebuf, priv->writelen);
640 buf_len = priv->writelen;
642 spin_unlock_irqrestore(&priv->lock, flags);
644 for (i = 0; i < buf_len; i++)
645 sprintf(priv->dbgbuf + i*2 ,
646 "%02X", priv->writebuf[i]);
647 priv->dbgbuf[buf_len+i*2] = 0;
648 dbg("%s - writing %i chars : %s", __func__,
649 buf_len, priv->dbgbuf);
651 usb_fill_bulk_urb(port->write_urb, port->serial->dev,
652 usb_sndbulkpipe(port->serial->dev,
653 port->bulk_out_endpointAddress),
654 port->write_urb->transfer_buffer, buf_len + 3,
656 result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
657 usb_serial_port_softint(port);
661 static int iuu_read_buf(struct usb_serial_port *port, int len)
665 usb_fill_bulk_urb(port->read_urb, port->serial->dev,
666 usb_rcvbulkpipe(port->serial->dev,
667 port->bulk_in_endpointAddress),
668 port->read_urb->transfer_buffer, len,
669 read_buf_callback, port);
670 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
674 static void iuu_uart_read_callback(struct urb *urb)
676 struct usb_serial_port *port = urb->context;
677 struct iuu_private *priv = usb_get_serial_port_data(port);
679 int status = urb->status;
682 unsigned char *data = urb->transfer_buffer;
686 dbg("%s - status = %d", __func__, status);
691 dbg("%s - data is NULL !!!", __func__);
693 if (urb->actual_length == 1 && data != NULL)
696 if (urb->actual_length > 1) {
697 dbg("%s - urb->actual_length = %i", __func__,
702 /* if len > 0 call readbuf */
704 if (len > 0 && error == 0) {
705 dbg("%s - call read buf - len to read is %i ",
707 status = iuu_read_buf(port, len);
710 /* need to update status ? */
711 if (priv->poll > 99) {
712 status = iuu_status(port);
717 /* reset waiting ? */
719 if (priv->reset == 1) {
720 status = iuu_reset(port, 0xC);
723 /* Writebuf is waiting */
724 spin_lock_irqsave(&priv->lock, flags);
725 if (priv->writelen > 0) {
726 spin_unlock_irqrestore(&priv->lock, flags);
727 status = iuu_bulk_write(port);
730 spin_unlock_irqrestore(&priv->lock, flags);
731 /* if nothing to write call again rxcmd */
732 dbg("%s - rxcmd recall", __func__);
733 iuu_led_activity_off(urb);
736 static int iuu_uart_write(struct tty_struct *tty, struct usb_serial_port *port,
737 const u8 *buf, int count)
739 struct iuu_private *priv = usb_get_serial_port_data(port);
745 spin_lock_irqsave(&priv->lock, flags);
747 /* fill the buffer */
748 memcpy(priv->writebuf + priv->writelen, buf, count);
749 priv->writelen += count;
750 spin_unlock_irqrestore(&priv->lock, flags);
755 static void read_rxcmd_callback(struct urb *urb)
757 struct usb_serial_port *port = urb->context;
759 int status = urb->status;
766 usb_fill_bulk_urb(port->read_urb, port->serial->dev,
767 usb_rcvbulkpipe(port->serial->dev,
768 port->bulk_in_endpointAddress),
769 port->read_urb->transfer_buffer, 256,
770 iuu_uart_read_callback, port);
771 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
772 dbg("%s - submit result = %d", __func__, result);
775 static int iuu_uart_on(struct usb_serial_port *port)
780 buf = kmalloc(sizeof(u8) * 4, GFP_KERNEL);
785 buf[0] = IUU_UART_ENABLE;
786 buf[1] = (u8) ((IUU_BAUD_9600 >> 8) & 0x00FF);
787 buf[2] = (u8) (0x00FF & IUU_BAUD_9600);
788 buf[3] = (u8) (0x0F0 & IUU_ONE_STOP_BIT) | (0x07 & IUU_PARITY_EVEN);
790 status = bulk_immediate(port, buf, 4);
791 if (status != IUU_OPERATION_OK) {
792 dbg("%s - uart_on error", __func__);
793 goto uart_enable_failed;
795 /* iuu_reset() the card after iuu_uart_on() */
796 status = iuu_uart_flush(port);
797 if (status != IUU_OPERATION_OK)
798 dbg("%s - uart_flush error", __func__);
804 /* Diables the IUU UART (a.k.a. the Phoenix voiderface) */
805 static int iuu_uart_off(struct usb_serial_port *port)
809 buf = kmalloc(1, GFP_KERNEL);
812 buf[0] = IUU_UART_DISABLE;
814 status = bulk_immediate(port, buf, 1);
815 if (status != IUU_OPERATION_OK)
816 dbg("%s - uart_off error", __func__);
822 static int iuu_uart_baud(struct usb_serial_port *port, u32 baud_base,
823 u32 *actual, u8 parity)
831 unsigned int T1FrekvensHZ = 0;
833 dbg("%s - enter baud_base=%d", __func__, baud_base);
834 dataout = kmalloc(sizeof(u8) * 5, GFP_KERNEL);
838 /*baud = (((priv->clk / 35) * baud_base) / 100000); */
841 if (baud < 1200 || baud > 230400) {
843 return IUU_INVALID_PARAMETER;
847 T1FrekvensHZ = 500000;
852 T1FrekvensHZ = 2000000;
857 T1FrekvensHZ = 6000000;
862 T1FrekvensHZ = 24000000;
865 T1reload = 256 - (u8) (T1FrekvensHZ / (baud * 2));
867 /* magic number here: ENTER_FIRMWARE_UPDATE; */
868 dataout[DataCount++] = IUU_UART_ESC;
869 /* magic number here: CHANGE_BAUD; */
870 dataout[DataCount++] = IUU_UART_CHANGE;
871 dataout[DataCount++] = T1Frekvens;
872 dataout[DataCount++] = T1reload;
874 *actual = (T1FrekvensHZ / (256 - T1reload)) / 2;
876 switch (parity & 0x0F) {
877 case IUU_PARITY_NONE:
878 dataout[DataCount++] = 0x00;
880 case IUU_PARITY_EVEN:
881 dataout[DataCount++] = 0x01;
884 dataout[DataCount++] = 0x02;
886 case IUU_PARITY_MARK:
887 dataout[DataCount++] = 0x03;
889 case IUU_PARITY_SPACE:
890 dataout[DataCount++] = 0x04;
894 return IUU_INVALID_PARAMETER;
898 switch (parity & 0xF0) {
899 case IUU_ONE_STOP_BIT:
900 dataout[DataCount - 1] |= IUU_ONE_STOP_BIT;
903 case IUU_TWO_STOP_BITS:
904 dataout[DataCount - 1] |= IUU_TWO_STOP_BITS;
908 return IUU_INVALID_PARAMETER;
912 status = bulk_immediate(port, dataout, DataCount);
913 if (status != IUU_OPERATION_OK)
914 dbg("%s - uart_off error", __func__);
919 static void iuu_set_termios(struct tty_struct *tty,
920 struct usb_serial_port *port, struct ktermios *old_termios)
922 const u32 supported_mask = CMSPAR|PARENB|PARODD;
923 struct iuu_private *priv = usb_get_serial_port_data(port);
924 unsigned int cflag = tty->termios->c_cflag;
930 u32 newval = cflag & supported_mask;
932 /* Just use the ospeed. ispeed should be the same. */
933 baud = tty->termios->c_ospeed;
935 dbg("%s - enter c_ospeed or baud=%d", __func__, baud);
937 /* compute the parity parameter */
939 if (cflag & CMSPAR) { /* Using mark space */
941 parity |= IUU_PARITY_SPACE;
943 parity |= IUU_PARITY_MARK;
944 } else if (!(cflag & PARENB)) {
945 parity |= IUU_PARITY_NONE;
947 } else if (cflag & PARODD)
948 parity |= IUU_PARITY_ODD;
950 parity |= IUU_PARITY_EVEN;
952 parity |= (cflag & CSTOPB ? IUU_TWO_STOP_BITS : IUU_ONE_STOP_BIT);
955 status = iuu_uart_baud(port,
956 baud * priv->boost / 100,
959 /* set the termios value to the real one, so the user now what has
960 * changed. We support few fields so its easies to copy the old hw
961 * settings back over and then adjust them
964 tty_termios_copy_hw(tty->termios, old_termios);
965 if (status != 0) /* Set failed - return old bits */
967 /* Re-encode speed, parity and csize */
968 tty_encode_baud_rate(tty, baud, baud);
969 tty->termios->c_cflag &= ~(supported_mask|CSIZE);
970 tty->termios->c_cflag |= newval | csize;
973 static void iuu_close(struct usb_serial_port *port)
975 /* iuu_led (port,255,0,0,0); */
976 struct usb_serial *serial;
978 serial = port->serial;
985 /* shutdown our urbs */
986 dbg("%s - shutting down urbs", __func__);
987 usb_kill_urb(port->write_urb);
988 usb_kill_urb(port->read_urb);
989 usb_kill_urb(port->interrupt_in_urb);
990 iuu_led(port, 0, 0, 0xF000, 0xFF);
994 static void iuu_init_termios(struct tty_struct *tty)
996 *(tty->termios) = tty_std_termios;
997 tty->termios->c_cflag = CLOCAL | CREAD | CS8 | B9600
998 | TIOCM_CTS | CSTOPB | PARENB;
999 tty->termios->c_ispeed = 9600;
1000 tty->termios->c_ospeed = 9600;
1001 tty->termios->c_lflag = 0;
1002 tty->termios->c_oflag = 0;
1003 tty->termios->c_iflag = 0;
1006 static int iuu_open(struct tty_struct *tty, struct usb_serial_port *port)
1008 struct usb_serial *serial = port->serial;
1013 struct iuu_private *priv = usb_get_serial_port_data(port);
1015 baud = tty->termios->c_ospeed;
1016 tty->termios->c_ispeed = baud;
1017 /* Re-encode speed */
1018 tty_encode_baud_rate(tty, baud, baud);
1020 dbg("%s - port %d, baud %d", __func__, port->number, baud);
1021 usb_clear_halt(serial->dev, port->write_urb->pipe);
1022 usb_clear_halt(serial->dev, port->read_urb->pipe);
1024 buf = kmalloc(10, GFP_KERNEL);
1030 /* initialize writebuf */
1031 #define FISH(a, b, c, d) do { \
1032 result = usb_control_msg(port->serial->dev, \
1033 usb_rcvctrlpipe(port->serial->dev, 0), \
1034 b, a, c, d, buf, 1, 1000); \
1035 dbg("0x%x:0x%x:0x%x:0x%x %d - %x", a, b, c, d, result, \
1036 buf[0]); } while (0);
1038 #define SOUP(a, b, c, d) do { \
1039 result = usb_control_msg(port->serial->dev, \
1040 usb_sndctrlpipe(port->serial->dev, 0), \
1041 b, a, c, d, NULL, 0, 1000); \
1042 dbg("0x%x:0x%x:0x%x:0x%x %d", a, b, c, d, result); } while (0)
1044 /* This is not UART related but IUU USB driver related or something */
1045 /* like that. Basically no IUU will accept any commands from the USB */
1046 /* host unless it has received the following message */
1047 /* sprintf(buf ,"%c%c%c%c",0x03,0x02,0x02,0x0); */
1049 SOUP(0x03, 0x02, 0x02, 0x0);
1051 iuu_led(port, 0xF000, 0xF000, 0, 0xFF);
1055 priv->boost = boost;
1057 switch (clockmode) {
1058 case 2: /* 3.680 Mhz */
1059 priv->clk = IUU_CLK_3680000;
1060 iuu_clk(port, IUU_CLK_3680000 * boost / 100);
1062 iuu_uart_baud(port, baud * boost / 100, &actual,
1065 case 3: /* 6.00 Mhz */
1066 iuu_clk(port, IUU_CLK_6000000 * boost / 100);
1067 priv->clk = IUU_CLK_6000000;
1068 /* Ratio of 6000000 to 3500000 for baud 9600 */
1070 iuu_uart_baud(port, 16457 * boost / 100, &actual,
1073 default: /* 3.579 Mhz */
1074 iuu_clk(port, IUU_CLK_3579000 * boost / 100);
1075 priv->clk = IUU_CLK_3579000;
1077 iuu_uart_baud(port, baud * boost / 100, &actual,
1081 /* set the cardin cardout signals */
1088 iuu_cardin = TIOCM_CD;
1093 iuu_cardout = TIOCM_CD;
1096 iuu_cardin = TIOCM_DSR;
1101 iuu_cardout = TIOCM_DSR;
1104 iuu_cardin = TIOCM_CTS;
1109 iuu_cardout = TIOCM_CTS;
1112 iuu_cardin = TIOCM_RNG;
1117 iuu_cardout = TIOCM_RNG;
1120 iuu_uart_flush(port);
1122 dbg("%s - initialization done", __func__);
1124 memset(port->write_urb->transfer_buffer, IUU_UART_RX, 1);
1125 usb_fill_bulk_urb(port->write_urb, port->serial->dev,
1126 usb_sndbulkpipe(port->serial->dev,
1127 port->bulk_out_endpointAddress),
1128 port->write_urb->transfer_buffer, 1,
1129 read_rxcmd_callback, port);
1130 result = usb_submit_urb(port->write_urb, GFP_KERNEL);
1132 dev_err(&port->dev, "%s - failed submitting read urb,"
1133 " error %d\n", __func__, result);
1136 dbg("%s - rxcmd OK", __func__);
1142 /* how to change VCC */
1143 static int iuu_vcc_set(struct usb_serial_port *port, unsigned int vcc)
1148 buf = kmalloc(5, GFP_KERNEL);
1152 buf[0] = IUU_SET_VCC;
1153 buf[1] = vcc & 0xFF;
1154 buf[2] = (vcc >> 8) & 0xFF;
1155 buf[3] = (vcc >> 16) & 0xFF;
1156 buf[4] = (vcc >> 24) & 0xFF;
1158 status = bulk_immediate(port, buf, 5);
1161 if (status != IUU_OPERATION_OK)
1162 dbg("%s - vcc error status = %2x", __func__, status);
1164 dbg("%s - vcc OK !", __func__);
1173 static ssize_t show_vcc_mode(struct device *dev,
1174 struct device_attribute *attr, char *buf)
1176 struct usb_serial_port *port = to_usb_serial_port(dev);
1177 struct iuu_private *priv = usb_get_serial_port_data(port);
1179 return sprintf(buf, "%d\n", priv->vcc);
1182 static ssize_t store_vcc_mode(struct device *dev,
1183 struct device_attribute *attr, const char *buf, size_t count)
1185 struct usb_serial_port *port = to_usb_serial_port(dev);
1186 struct iuu_private *priv = usb_get_serial_port_data(port);
1189 if (strict_strtoul(buf, 10, &v)) {
1190 dev_err(dev, "%s - vcc_mode: %s is not a unsigned long\n",
1192 goto fail_store_vcc_mode;
1195 dbg("%s: setting vcc_mode = %ld", __func__, v);
1197 if ((v != 3) && (v != 5)) {
1198 dev_err(dev, "%s - vcc_mode %ld is invalid\n", __func__, v);
1200 iuu_vcc_set(port, v);
1203 fail_store_vcc_mode:
1207 static DEVICE_ATTR(vcc_mode, S_IRUSR | S_IWUSR, show_vcc_mode,
1210 static int iuu_create_sysfs_attrs(struct usb_serial_port *port)
1212 return device_create_file(&port->dev, &dev_attr_vcc_mode);
1215 static int iuu_remove_sysfs_attrs(struct usb_serial_port *port)
1217 device_remove_file(&port->dev, &dev_attr_vcc_mode);
1222 * End Sysfs Attributes
1225 static struct usb_serial_driver iuu_device = {
1227 .owner = THIS_MODULE,
1228 .name = "iuu_phoenix",
1230 .id_table = id_table,
1232 .bulk_in_size = 512,
1233 .bulk_out_size = 512,
1234 .port_probe = iuu_create_sysfs_attrs,
1235 .port_remove = iuu_remove_sysfs_attrs,
1238 .write = iuu_uart_write,
1239 .read_bulk_callback = iuu_uart_read_callback,
1240 .tiocmget = iuu_tiocmget,
1241 .tiocmset = iuu_tiocmset,
1242 .set_termios = iuu_set_termios,
1243 .init_termios = iuu_init_termios,
1244 .attach = iuu_startup,
1245 .release = iuu_release,
1248 static struct usb_serial_driver * const serial_drivers[] = {
1252 module_usb_serial_driver(serial_drivers, id_table);
1254 MODULE_AUTHOR("Alain Degreffe eczema@ecze.com");
1256 MODULE_DESCRIPTION(DRIVER_DESC);
1257 MODULE_LICENSE("GPL");
1259 MODULE_VERSION(DRIVER_VERSION);
1260 module_param(debug, bool, S_IRUGO | S_IWUSR);
1261 MODULE_PARM_DESC(debug, "Debug enabled or not");
1263 module_param(xmas, bool, S_IRUGO | S_IWUSR);
1264 MODULE_PARM_DESC(xmas, "Xmas colors enabled or not");
1266 module_param(boost, int, S_IRUGO | S_IWUSR);
1267 MODULE_PARM_DESC(boost, "Card overclock boost (in percent 100-500)");
1269 module_param(clockmode, int, S_IRUGO | S_IWUSR);
1270 MODULE_PARM_DESC(clockmode, "Card clock mode (1=3.579 MHz, 2=3.680 MHz, "
1273 module_param(cdmode, int, S_IRUGO | S_IWUSR);
1274 MODULE_PARM_DESC(cdmode, "Card detect mode (0=none, 1=CD, 2=!CD, 3=DSR, "
1275 "4=!DSR, 5=CTS, 6=!CTS, 7=RING, 8=!RING)");
1277 module_param(vcc_default, int, S_IRUGO | S_IWUSR);
1278 MODULE_PARM_DESC(vcc_default, "Set default VCC (either 3 for 3.3V or 5 "
1279 "for 5V). Default to 5.");