diff options
Diffstat (limited to 'drivers/usb/serial/iuu_phoenix.c')
| -rw-r--r-- | drivers/usb/serial/iuu_phoenix.c | 1217 |
1 files changed, 1217 insertions, 0 deletions
diff --git a/drivers/usb/serial/iuu_phoenix.c b/drivers/usb/serial/iuu_phoenix.c new file mode 100644 index 000000000000..fde188e23ce1 --- /dev/null +++ b/drivers/usb/serial/iuu_phoenix.c @@ -0,0 +1,1217 @@ +/* + * Infinity Unlimited USB Phoenix driver + * + * Copyright (C) 2007 Alain Degreffe (eczema@ecze.com) + * + * Original code taken from iuutool (Copyright (C) 2006 Juan Carlos Borrás) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * And tested with help of WB Electronics + * + */ +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/tty.h> +#include <linux/tty_driver.h> +#include <linux/tty_flip.h> +#include <linux/serial.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/spinlock.h> +#include <linux/uaccess.h> +#include <linux/usb.h> +#include <linux/usb/serial.h> +#include "iuu_phoenix.h" +#include <linux/random.h> + + +#ifdef CONFIG_USB_SERIAL_DEBUG +static int debug = 1; +#else +static int debug; +#endif + +/* + * Version Information + */ +#define DRIVER_VERSION "v0.5" +#define DRIVER_DESC "Infinity USB Unlimited Phoenix driver" + +static struct usb_device_id id_table[] = { + {USB_DEVICE(IUU_USB_VENDOR_ID, IUU_USB_PRODUCT_ID)}, + {} /* Terminating entry */ +}; +MODULE_DEVICE_TABLE(usb, id_table); + +static struct usb_driver iuu_driver = { + .name = "iuu_phoenix", + .probe = usb_serial_probe, + .disconnect = usb_serial_disconnect, + .id_table = id_table, + .no_dynamic_id = 1, +}; + +/* turbo parameter */ +static int boost = 100; +static int clockmode = 1; +static int cdmode = 1; +static int iuu_cardin; +static int iuu_cardout; +static int xmas; + +static void read_rxcmd_callback(struct urb *urb); + +struct iuu_private { + spinlock_t lock; /* store irq state */ + wait_queue_head_t delta_msr_wait; + u8 line_control; + u8 line_status; + u8 termios_initialized; + int tiostatus; /* store IUART SIGNAL for tiocmget call */ + u8 reset; /* if 1 reset is needed */ + int poll; /* number of poll */ + u8 *writebuf; /* buffer for writing to device */ + int writelen; /* num of byte to write to device */ + u8 *buf; /* used for initialize speed */ + u8 *dbgbuf; /* debug buffer */ + u8 len; +}; + + +static void iuu_free_buf(struct iuu_private *priv) +{ + kfree(priv->buf); + kfree(priv->dbgbuf); + kfree(priv->writebuf); +} + +static int iuu_alloc_buf(struct iuu_private *priv) +{ + priv->buf = kzalloc(256, GFP_KERNEL); + priv->dbgbuf = kzalloc(256, GFP_KERNEL); + priv->writebuf = kzalloc(256, GFP_KERNEL); + if (!priv->buf || !priv->dbgbuf || !priv->writebuf) { + iuu_free_buf(priv); + dbg("%s problem allocation buffer", __FUNCTION__); + return -ENOMEM; + } + dbg("%s - Privates buffers allocation success", __FUNCTION__); + return 0; +} + +static int iuu_startup(struct usb_serial *serial) +{ + struct iuu_private *priv; + priv = kzalloc(sizeof(struct iuu_private), GFP_KERNEL); + dbg("%s- priv allocation success", __FUNCTION__); + if (!priv) + return -ENOMEM; + if (iuu_alloc_buf(priv)) { + kfree(priv); + return -ENOMEM; + } + spin_lock_init(&priv->lock); + init_waitqueue_head(&priv->delta_msr_wait); + usb_set_serial_port_data(serial->port[0], priv); + return 0; +} + +/* Shutdown function */ +static void iuu_shutdown(struct usb_serial *serial) +{ + struct usb_serial_port *port = serial->port[0]; + struct iuu_private *priv = usb_get_serial_port_data(port); + if (!port) + return; + + dbg("%s", __FUNCTION__); + + if (priv) { + iuu_free_buf(priv); + dbg("%s - I will free all", __FUNCTION__); + usb_set_serial_port_data(port, NULL); + + dbg("%s - priv is not anymore in port structure", __FUNCTION__); + kfree(priv); + + dbg("%s priv is now kfree", __FUNCTION__); + } +} + +static int iuu_tiocmset(struct usb_serial_port *port, struct file *file, + unsigned int set, unsigned int clear) +{ + struct iuu_private *priv = usb_get_serial_port_data(port); + struct tty_struct *tty; + tty = port->tty; + + dbg("%s (%d) msg : SET = 0x%04x, CLEAR = 0x%04x ", __FUNCTION__, + port->number, set, clear); + if (set & TIOCM_RTS) + priv->tiostatus = TIOCM_RTS; + + if (!(set & TIOCM_RTS) && priv->tiostatus == TIOCM_RTS) { + dbg("%s TIOCMSET RESET called !!!", __FUNCTION__); + priv->reset = 1; + return 0; + } + + return 0; +} + +/* This is used to provide a carrier detect mechanism + * When a card is present, the response is 0x00 + * When no card , the reader respond with TIOCM_CD + * This is known as CD autodetect mechanism + */ +static int iuu_tiocmget(struct usb_serial_port *port, struct file *file) +{ + struct iuu_private *priv = usb_get_serial_port_data(port); + return priv->tiostatus; +} + +static void iuu_rxcmd(struct urb *urb) +{ + struct usb_serial_port *port = (struct usb_serial_port *)urb->context; + int result; + dbg("%s - enter", __FUNCTION__); + + if (urb->status) { + dbg("%s - urb->status = %d", __FUNCTION__, urb->status); + /* error stop all */ + return; + } + + + memset(port->write_urb->transfer_buffer, IUU_UART_RX, 1); + usb_fill_bulk_urb(port->write_urb, port->serial->dev, + usb_sndbulkpipe(port->serial->dev, + port->bulk_out_endpointAddress), + port->write_urb->transfer_buffer, 1, + read_rxcmd_callback, port); + result = usb_submit_urb(port->write_urb, GFP_ATOMIC); +} + +static int iuu_reset(struct usb_serial_port *port, u8 wt) +{ + struct iuu_private *priv = usb_get_serial_port_data(port); + int result; + char *buf_ptr = port->write_urb->transfer_buffer; + dbg("%s - enter", __FUNCTION__); + + /* Prepare the reset sequence */ + + *buf_ptr++ = IUU_RST_SET; + *buf_ptr++ = IUU_DELAY_MS; + *buf_ptr++ = wt; + *buf_ptr = IUU_RST_CLEAR; + + /* send the sequence */ + + usb_fill_bulk_urb(port->write_urb, + port->serial->dev, + usb_sndbulkpipe(port->serial->dev, + port->bulk_out_endpointAddress), + port->write_urb->transfer_buffer, 4, iuu_rxcmd, port); + result = usb_submit_urb(port->write_urb, GFP_ATOMIC); + priv->reset = 0; + return result; +} + +/* Status Function + * Return value is + * 0x00 = no card + * 0x01 = smartcard + * 0x02 = sim card + */ +static void iuu_update_status_callback(struct urb *urb) +{ + struct usb_serial_port *port = (struct usb_serial_port *)urb->context; + struct iuu_private *priv = usb_get_serial_port_data(port); + u8 *st; + dbg("%s - enter", __FUNCTION__); + + if (urb->status) { + dbg("%s - urb->status = %d", __FUNCTION__, urb->status); + /* error stop all */ + return; + } + + st = urb->transfer_buffer; + dbg("%s - enter", __FUNCTION__); + if (urb->actual_length == 1) { + switch (st[0]) { + case 0x1: + priv->tiostatus = iuu_cardout; + break; + case 0x0: + priv->tiostatus = iuu_cardin; + break; + default: + priv->tiostatus = iuu_cardin; + } + } + iuu_rxcmd(urb); +} + +static void iuu_status_callback(struct urb *urb) +{ + struct usb_serial_port *port = (struct usb_serial_port *)urb->context; + int result; + dbg("%s - enter", __FUNCTION__); + + dbg("%s - urb->status = %d", __FUNCTION__, urb->status); + usb_fill_bulk_urb(port->read_urb, port->serial->dev, + usb_rcvbulkpipe(port->serial->dev, + port->bulk_in_endpointAddress), + port->read_urb->transfer_buffer, 256, + iuu_update_status_callback, port); + result = usb_submit_urb(port->read_urb, GFP_ATOMIC); +} + +static int iuu_status(struct usb_serial_port *port) +{ + int result; + + dbg("%s - enter", __FUNCTION__); + + memset(port->write_urb->transfer_buffer, IUU_GET_STATE_REGISTER, 1); + usb_fill_bulk_urb(port->write_urb, port->serial->dev, + usb_sndbulkpipe(port->serial->dev, + port->bulk_out_endpointAddress), + port->write_urb->transfer_buffer, 1, + iuu_status_callback, port); + result = usb_submit_urb(port->write_urb, GFP_ATOMIC); + return result; + +} + +static int bulk_immediate(struct usb_serial_port *port, u8 *buf, u8 count) +{ + int status; + struct usb_serial *serial = port->serial; + int actual = 0; + + dbg("%s - enter", __FUNCTION__); + + /* send the data out the bulk port */ + + status = + usb_bulk_msg(serial->dev, + usb_sndbulkpipe(serial->dev, + port->bulk_out_endpointAddress), buf, + count, &actual, HZ * 1); + + if (status != IUU_OPERATION_OK) { + dbg("%s - error = %2x", __FUNCTION__, status); + } else { + dbg("%s - write OK !", __FUNCTION__); + } + return status; +} + +static int read_immediate(struct usb_serial_port *port, u8 *buf, u8 count) +{ + int status; + struct usb_serial *serial = port->serial; + int actual = 0; + + dbg("%s - enter", __FUNCTION__); + + /* send the data out the bulk port */ + + status = + usb_bulk_msg(serial->dev, + usb_rcvbulkpipe(serial->dev, + port->bulk_in_endpointAddress), buf, + count, &actual, HZ * 1); + + if (status != IUU_OPERATION_OK) { + dbg("%s - error = %2x", __FUNCTION__, status); + } else { + dbg("%s - read OK !", __FUNCTION__); + } + + return status; +} + +static int iuu_led(struct usb_serial_port *port, unsigned int R, + unsigned int G, unsigned int B, u8 f) +{ + int status; + u8 *buf; + buf = kmalloc(8, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + dbg("%s - enter", __FUNCTION__); + + buf[0] = IUU_SET_LED; + buf[1] = R & 0xFF; + buf[2] = (R >> 8) & 0xFF; + buf[3] = G & 0xFF; + buf[4] = (G >> 8) & 0xFF; + buf[5] = B & 0xFF; + buf[6] = (B >> 8) & 0xFF; + buf[7] = f; + status = bulk_immediate(port, buf, 8); + kfree(buf); + if (status != IUU_OPERATION_OK) + dbg("%s - led error status = %2x", __FUNCTION__, status); + else + dbg("%s - led OK !", __FUNCTION__); + return IUU_OPERATION_OK; +} + +static void iuu_rgbf_fill_buffer(u8 *buf, u8 r1, u8 r2, u8 g1, u8 g2, u8 b1, + u8 b2, u8 freq) +{ + *buf++ = IUU_SET_LED; + *buf++ = r1; + *buf++ = r2; + *buf++ = g1; + *buf++ = g2; + *buf++ = b1; + *buf++ = b2; + *buf = freq; +} + +static void iuu_led_activity_on(struct urb *urb) +{ + struct usb_serial_port *port = (struct usb_serial_port *)urb->context; + int result; + char *buf_ptr = port->write_urb->transfer_buffer; + *buf_ptr++ = IUU_SET_LED; + if (xmas == 1) { + get_random_bytes(buf_ptr, 6); + *(buf_ptr+7) = 1; + } else { + iuu_rgbf_fill_buffer(buf_ptr, 255, 255, 0, 0, 0, 0, 255); + } + + usb_fill_bulk_urb(port->write_urb, port->serial->dev, + usb_sndbulkpipe(port->serial->dev, + port->bulk_out_endpointAddress), + port->write_urb->transfer_buffer, 8 , + iuu_rxcmd, port); + result = usb_submit_urb(port->write_urb, GFP_ATOMIC); +} + +static void iuu_led_activity_off(struct urb *urb) +{ + struct usb_serial_port *port = (struct usb_serial_port *)urb->context; + int result; + char *buf_ptr = port->write_urb->transfer_buffer; + if (xmas == 1) { + iuu_rxcmd(urb); + return; + } else { + *buf_ptr++ = IUU_SET_LED; + iuu_rgbf_fill_buffer(buf_ptr, 0, 0, 255, 255, 0, 0, 255); + } + usb_fill_bulk_urb(port->write_urb, port->serial->dev, + usb_sndbulkpipe(port->serial->dev, + port->bulk_out_endpointAddress), + port->write_urb->transfer_buffer, 8 , + iuu_rxcmd, port); + result = usb_submit_urb(port->write_urb, GFP_ATOMIC); +} + + + +static int iuu_clk(struct usb_serial_port *port, int dwFrq) +{ + int status; + struct iuu_private *priv = usb_get_serial_port_data(port); + int Count = 0; + u8 FrqGenAdr = 0x69; + u8 DIV = 0; /* 8bit */ + u8 XDRV = 0; /* 8bit */ + u8 PUMP = 0; /* 3bit */ + u8 PBmsb = 0; /* 2bit */ + u8 PBlsb = 0; /* 8bit */ + u8 PO = 0; /* 1bit */ + u8 Q = 0; /* 7bit */ + /* 24bit = 3bytes */ + unsigned int P = 0; + unsigned int P2 = 0; + int frq = (int)dwFrq; + + dbg("%s - enter", __FUNCTION__); + + if (frq == 0) { + priv->buf[Count++] = IUU_UART_WRITE_I2C; + priv->buf[Count++] = FrqGenAdr << 1; + priv->buf[Count++] = 0x09; + priv->buf[Count++] = 0x00; + + status = bulk_immediate(port, (u8 *) priv->buf, Count); + if (status != 0) { + dbg("%s - write error ", __FUNCTION__); + return status; + } + } else if (frq == 3579000) { + DIV = 100; + P = 1193; + Q = 40; + XDRV = 0; + } else if (frq == 3680000) { + DIV = 105; + P = 161; + Q = 5; + XDRV = 0; + } else if (frq == 6000000) { + DIV = 66; + P = 66; + Q = 2; + XDRV = 0x28; + } else { + unsigned int result = 0; + unsigned int tmp = 0; + unsigned int check; + unsigned int check2; + char found = 0x00; + unsigned int lQ = 2; + unsigned int lP = 2055; + unsigned int lDiv = 4; + + for (lQ = 2; lQ <= 47 && !found; lQ++) + for (lP = 2055; lP >= 8 && !found; lP--) + for (lDiv = 4; lDiv <= 127 && !found; lDiv++) { + tmp = (12000000 / lDiv) * (lP / lQ); + if (abs((int)(tmp - frq)) < + abs((int)(frq - result))) { + check2 = (12000000 / lQ); + if (check2 < 250000) + continue; + check = (12000000 / lQ) * lP; + if (check > 400000000) + continue; + if (check < 100000000) + continue; + if (lDiv < 4 || lDiv > 127) + continue; + result = tmp; + P = lP; + DIV = lDiv; + Q = lQ; + if (result == frq) + found = 0x01; + } + } + } + P2 = ((P - PO) / 2) - 4; + DIV = DIV; + PUMP = 0x04; + PBmsb = (P2 >> 8 & 0x03); + PBlsb = P2 & 0xFF; + PO = (P >> 10) & 0x01; + Q = Q - 2; + + priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ + priv->buf[Count++] = FrqGenAdr << 1; + priv->buf[Count++] = 0x09; + priv->buf[Count++] = 0x20; /* Adr = 0x09 */ + priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ + priv->buf[Count++] = FrqGenAdr << 1; + priv->buf[Count++] = 0x0C; + priv->buf[Count++] = DIV; /* Adr = 0x0C */ + priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ + priv->buf[Count++] = FrqGenAdr << 1; + priv->buf[Count++] = 0x12; + priv->buf[Count++] = XDRV; /* Adr = 0x12 */ + priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ + priv->buf[Count++] = FrqGenAdr << 1; + priv->buf[Count++] = 0x13; + priv->buf[Count++] = 0x6B; /* Adr = 0x13 */ + priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ + priv->buf[Count++] = FrqGenAdr << 1; + priv->buf[Count++] = 0x40; + priv->buf[Count++] = (0xC0 | ((PUMP & 0x07) << 2)) | + (PBmsb & 0x03); /* Adr = 0x40 */ + priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ + priv->buf[Count++] = FrqGenAdr << 1; + priv->buf[Count++] = 0x41; + priv->buf[Count++] = PBlsb; /* Adr = 0x41 */ + priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ + priv->buf[Count++] = FrqGenAdr << 1; + priv->buf[Count++] = 0x42; + priv->buf[Count++] = Q | (((PO & 0x01) << 7)); /* Adr = 0x42 */ + priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ + priv->buf[Count++] = FrqGenAdr << 1; + priv->buf[Count++] = 0x44; + priv->buf[Count++] = (char)0xFF; /* Adr = 0x44 */ + priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ + priv->buf[Count++] = FrqGenAdr << 1; + priv->buf[Count++] = 0x45; + priv->buf[Count++] = (char)0xFE; /* Adr = 0x45 */ + priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ + priv->buf[Count++] = FrqGenAdr << 1; + priv->buf[Count++] = 0x46; + priv->buf[Count++] = 0x7F; /* Adr = 0x46 */ + priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ + priv->buf[Count++] = FrqGenAdr << 1; + priv->buf[Count++] = 0x47; + priv->buf[Count++] = (char)0x84; /* Adr = 0x47 */ + + status = bulk_immediate(port, (u8 *) priv->buf, Count); + if (status != IUU_OPERATION_OK) + dbg("%s - write error ", __FUNCTION__); + return status; +} + +static int iuu_uart_flush(struct usb_serial_port *port) +{ + int i; + int status; + u8 rxcmd = IUU_UART_RX; + struct iuu_private *priv = usb_get_serial_port_data(port); + + dbg("%s - enter", __FUNCTION__); + + if (iuu_led(port, 0xF000, 0, 0, 0xFF) < 0) + return -EIO; + + for (i = 0; i < 2; i++) { + status = bulk_immediate(port, &rxcmd, 1); + if (status != IUU_OPERATION_OK) { + dbg("%s - uart_flush_write error", __FUNCTION__); + return status; + } + + status = read_immediate(port, &priv->len, 1); + if (status != IUU_OPERATION_OK) { + dbg("%s - uart_flush_read error", __FUNCTION__); + return status; + } + + if (priv->len > 0) { + dbg("%s - uart_flush datalen is : %i ", __FUNCTION__, + priv->len); + status = read_immediate(port, priv->buf, priv->len); + if (status != IUU_OPERATION_OK) { + dbg("%s - uart_flush_read error", __FUNCTION__); + return status; + } + } + } + dbg("%s - uart_flush_read OK!", __FUNCTION__); + iuu_led(port, 0, 0xF000, 0, 0xFF); + return status; +} + +static void read_buf_callback(struct urb *urb) +{ + struct usb_serial_port *port = (struct usb_serial_port *)urb->context; + unsigned char *data = urb->transfer_buffer; + struct tty_struct *tty; + dbg("%s - urb->status = %d", __FUNCTION__, urb->status); + + if (urb->status) { + dbg("%s - urb->status = %d", __FUNCTION__, urb->status); + if (urb->status == -EPROTO) { + /* reschedule needed */ + } + return; + } + + dbg("%s - %i chars to write", __FUNCTION__, urb->actual_length); + tty = port->tty; + if (data == NULL) + dbg("%s - data is NULL !!!", __FUNCTION__); + if (tty && urb->actual_length && data) { + tty_insert_flip_string(tty, data, urb->actual_length); + tty_flip_buffer_push(tty); + } + iuu_led_activity_on(urb); +} + +static int iuu_bulk_write(struct usb_serial_port *port) +{ + struct iuu_private *priv = usb_get_serial_port_data(port); + unsigned int flags; + int result; + int i; + char *buf_ptr = port->write_urb->transfer_buffer; + dbg("%s - enter", __FUNCTION__); + + *buf_ptr++ = IUU_UART_ESC; + *buf_ptr++ = IUU_UART_TX; + *buf_ptr++ = priv->writelen; + + memcpy(buf_ptr, priv->writebuf, + priv->writelen); + if (debug == 1) { + for (i = 0; i < priv->writelen; i++) + sprintf(priv->dbgbuf + i*2 , + "%02X", priv->writebuf[i]); + priv->dbgbuf[priv->writelen+i*2] = 0; + dbg("%s - writing %i chars : %s", __FUNCTION__, + priv->writelen, priv->dbgbuf); + } + usb_fill_bulk_urb(port->write_urb, port->serial->dev, + usb_sndbulkpipe(port->serial->dev, + port->bulk_out_endpointAddress), + port->write_urb->transfer_buffer, priv->writelen + 3, + iuu_rxcmd, port); + result = usb_submit_urb(port->write_urb, GFP_ATOMIC); + spin_lock_irqsave(&priv->lock, flags); + priv->writelen = 0; + spin_unlock_irqrestore(&priv->lock, flags); + usb_serial_port_softint(port); + return result; +} + +static int iuu_read_buf(struct usb_serial_port *port, int len) +{ + int result; + dbg("%s - enter", __FUNCTION__); + + usb_fill_bulk_urb(port->read_urb, port->serial->dev, + usb_rcvbulkpipe(port->serial->dev, + port->bulk_in_endpointAddress), + port->read_urb->transfer_buffer, len, + read_buf_callback, port); + result = usb_submit_urb(port->read_urb, GFP_ATOMIC); + return result; +} + +static void iuu_uart_read_callback(struct urb *urb) +{ + struct usb_serial_port *port = (struct usb_serial_port *)urb->context; + struct iuu_private *priv = usb_get_serial_port_data(port); + unsigned int flags; + int status; + int error = 0; + int len = 0; + unsigned char *data = urb->transfer_buffer; + priv->poll++; + + dbg("%s - enter", __FUNCTION__); + + if (urb->status) { + dbg("%s - urb->status = %d", __FUNCTION__, urb->status); + /* error stop all */ + return; + } + if (data == NULL) + dbg("%s - data is NULL !!!", __FUNCTION__); + + if (urb->actual_length == 1 && data != NULL) + len = (int) data[0]; + + if (urb->actual_length > 1) { + dbg("%s - urb->actual_length = %i", __FUNCTION__, + urb->actual_length); + error = 1; + return; + } + /* if len > 0 call readbuf */ + + if (len > 0 && error == 0) { + dbg("%s - call read buf - len to read is %i ", + __FUNCTION__, len); + status = iuu_read_buf(port, len); + return; + } + /* need to update status ? */ + if (priv->poll > 99) { + status = iuu_status(port); + priv->poll = 0; + return; + } + + /* reset waiting ? */ + + if (priv->reset == 1) { + status = iuu_reset(port, 0xC); + return; + } + /* Writebuf is waiting */ + spin_lock_irqsave(&priv->lock, flags); + if (priv->writelen > 0) { + spin_unlock_irqrestore(&priv->lock, flags); + status = iuu_bulk_write(port); + return; + } + spin_unlock_irqrestore(&priv->lock, flags); + /* if nothing to write call again rxcmd */ + dbg("%s - rxcmd recall", __FUNCTION__); + iuu_led_activity_off(urb); + return; +} + +static int iuu_uart_write(struct usb_serial_port *port, const u8 *buf, + int count) +{ + struct iuu_private *priv = usb_get_serial_port_data(port); + unsigned int flags; + dbg("%s - enter", __FUNCTION__); + + if (count > 256) + return -ENOMEM; + + spin_lock_irqsave(&priv->lock, flags); + if (priv->writelen > 0) { + /* buffer already filled but not commited */ + spin_unlock_irqrestore(&priv->lock, flags); + return (0); + } + /* fill the buffer */ + memcpy(priv->writebuf, buf, count); + priv->writelen = count; + spin_unlock_irqrestore(&priv->lock, flags); + + return (count); +} + +static void read_rxcmd_callback(struct urb *urb) +{ + struct usb_serial_port *port = (struct usb_serial_port *)urb->context; + int result; + dbg("%s - enter", __FUNCTION__); + + dbg("%s - urb->status = %d", __FUNCTION__, urb->status); + + if (urb->status) { + dbg("%s - urb->status = %d", __FUNCTION__, urb->status); + /* error stop all */ + return; + } + + usb_fill_bulk_urb(port->read_urb, port->serial->dev, + usb_rcvbulkpipe(port->serial->dev, + port->bulk_in_endpointAddress), + port->read_urb->transfer_buffer, 256, + iuu_uart_read_callback, port); + result = usb_submit_urb(port->read_urb, GFP_ATOMIC); + dbg("%s - submit result = %d", __FUNCTION__, result); + return; +} + +static int iuu_uart_on(struct usb_serial_port *port) +{ + int status; + u8 *buf; + + buf = kmalloc(sizeof(u8) * 4, GFP_KERNEL); + + if (!buf) + return -ENOMEM; + + buf[0] = IUU_UART_ENABLE; + buf[1] = (u8) ((IUU_BAUD_9600 >> 8) & 0x00FF); + buf[2] = (u8) (0x00FF & IUU_BAUD_9600); + buf[3] = (u8) (0x0F0 & IUU_TWO_STOP_BITS) | (0x07 & IUU_PARITY_EVEN); + + status = bulk_immediate(port, buf, 4); + if (status != IUU_OPERATION_OK) { + dbg("%s - uart_on error", __FUNCTION__); + goto uart_enable_failed; + } + /* iuu_reset() the card after iuu_uart_on() */ + status = iuu_uart_flush(port); + if (status != IUU_OPERATION_OK) + dbg("%s - uart_flush error", __FUNCTION__); +uart_enable_failed: + kfree(buf); + return status; +} + +/* Diables the IUU UART (a.k.a. the Phoenix voiderface) */ +static int iuu_uart_off(struct usb_serial_port *port) +{ + int status; + u8 *buf; + buf = kmalloc(1, GFP_KERNEL); + if (!buf) + return -ENOMEM; + buf[0] = IUU_UART_DISABLE; + + status = bulk_immediate(port, buf, 1); + if (status != IUU_OPERATION_OK) + dbg("%s - uart_off error", __FUNCTION__); + + kfree(buf); + return status; +} + +static int iuu_uart_baud(struct usb_serial_port *port, u32 baud, + u32 *actual, u8 parity) +{ + int status; + u8 *dataout; + u8 DataCount = 0; + u8 T1Frekvens = 0; + u8 T1reload = 0; + unsigned int T1FrekvensHZ = 0; + + dataout = kmalloc(sizeof(u8) * 5, GFP_KERNEL); + + if (!dataout) + return -ENOMEM; + + if (baud < 1200 || baud > 230400) { + kfree(dataout); + return IUU_INVALID_PARAMETER; + } + if (baud > 977) { + T1Frekvens = 3; + T1FrekvensHZ = 500000; + } + + if (baud > 3906) { + T1Frekvens = 2; + T1FrekvensHZ = 2000000; + } + + if (baud > 11718) { + T1Frekvens = 1; + T1FrekvensHZ = 6000000; + } + + if (baud > 46875) { + T1Frekvens = 0; + T1FrekvensHZ = 24000000; + } + + T1reload = 256 - (u8) (T1FrekvensHZ / (baud * 2)); + + /* magic number here: ENTER_FIRMWARE_UPDATE; */ + dataout[DataCount++] = IUU_UART_ESC; + /* magic number here: CHANGE_BAUD; */ + dataout[DataCount++] = IUU_UART_CHANGE; + dataout[DataCount++] = T1Frekvens; + dataout[DataCount++] = T1reload; + + *actual = (T1FrekvensHZ / (256 - T1reload)) / 2; + + switch (parity & 0x0F) { + case IUU_PARITY_NONE: + dataout[DataCount++] = 0x00; + break; + case IUU_PARITY_EVEN: + dataout[DataCount++] = 0x01; + break; + case IUU_PARITY_ODD: + dataout[DataCount++] = 0x02; + break; + case IUU_PARITY_MARK: + dataout[DataCount++] = 0x03; + break; + case IUU_PARITY_SPACE: + dataout[DataCount++] = 0x04; + break; + default: + kfree(dataout); + return IUU_INVALID_PARAMETER; + break; + } + + switch (parity & 0xF0) { + case IUU_ONE_STOP_BIT: + dataout[DataCount - 1] |= IUU_ONE_STOP_BIT; + break; + + case IUU_TWO_STOP_BITS: + dataout[DataCount - 1] |= IUU_TWO_STOP_BITS; + break; + default: + kfree(dataout); + return IUU_INVALID_PARAMETER; + break; + } + + status = bulk_immediate(port, dataout, DataCount); + if (status != IUU_OPERATION_OK) + dbg("%s - uart_off error", __FUNCTION__); + kfree(dataout); + return status; +} + +static int set_control_lines(struct usb_device *dev, u8 value) +{ + return 0; +} + +static void iuu_close(struct usb_serial_port *port, struct file *filp) +{ + /* iuu_led (port,255,0,0,0); */ + struct usb_serial *serial; + struct iuu_private *priv = usb_get_serial_port_data(port); + unsigned long flags; + unsigned int c_cflag; + + serial = port->serial; + if (!serial) + return; + + dbg("%s - port %d", __FUNCTION__, port->number); + + iuu_uart_off(port); + if (serial->dev) { + if (port->tty) { + c_cflag = port->tty->termios->c_cflag; + if (c_cflag & HUPCL) { + /* drop DTR and RTS */ + priv = usb_get_serial_port_data(port); + spin_lock_irqsave(&priv->lock, flags); + priv->line_control = 0; + spin_unlock_irqrestore(&priv->lock, flags); + set_control_lines(port->serial->dev, 0); + } + } + /* free writebuf */ + /* shutdown our urbs */ + dbg("%s - shutting down urbs", __FUNCTION__); + usb_kill_urb(port->write_urb); + usb_kill_urb(port->read_urb); + usb_kill_urb(port->interrupt_in_urb); + msleep(1000); + /* wait one second to free all buffers */ + iuu_led(port, 0, 0, 0xF000, 0xFF); + msleep(1000); + usb_reset_device(port->serial->dev); + } +} + +static int iuu_open(struct usb_serial_port *port, struct file *filp) +{ + struct usb_serial *serial = port->serial; + u8 *buf; + int result; + u32 actual; + unsigned long flags; + struct iuu_private *priv = usb_get_serial_port_data(port); + + dbg("%s - port %d", __FUNCTION__, port->number); + usb_clear_halt(serial->dev, port->write_urb->pipe); + usb_clear_halt(serial->dev, port->read_urb->pipe); + + buf = kmalloc(10, GFP_KERNEL); + if (buf == NULL) + return -ENOMEM; + + /* fixup the endpoint buffer size */ + kfree(port->bulk_out_buffer); + port->bulk_out_buffer = kmalloc(512, GFP_KERNEL); + port->bulk_out_size = 512; + kfree(port->bulk_in_buffer); + port->bulk_in_buffer = kmalloc(512, GFP_KERNEL); + port->bulk_in_size = 512; + + if (!port->bulk_out_buffer || !port->bulk_in_buffer) { + kfree(port->bulk_out_buffer); + kfree(port->bulk_in_buffer); + kfree(buf); + return -ENOMEM; + } + + usb_fill_bulk_urb(port->write_urb, port->serial->dev, + usb_sndbulkpipe(port->serial->dev, + port->bulk_out_endpointAddress), + port->bulk_out_buffer, 512, + NULL, NULL); + + + usb_fill_bulk_urb(port->read_urb, port->serial->dev, + usb_rcvbulkpipe(port->serial->dev, + port->bulk_in_endpointAddress), + port->bulk_in_buffer, 512, + NULL, NULL); + + /* set the termios structure */ + spin_lock_irqsave(&priv->lock, flags); + if (!priv->termios_initialized) { + *(port->tty->termios) = tty_std_termios; + port->tty->termios->c_cflag = CLOCAL | CREAD | CS8 | B9600 + | TIOCM_CTS | CSTOPB | PARENB; + port->tty->termios->c_lflag = 0; + port->tty->termios->c_oflag = 0; + port->tty->termios->c_iflag = 0; + priv->termios_initialized = 1; + port->tty->low_latency = 1; + priv->poll = 0; + } + spin_unlock_irqrestore(&priv->lock, flags); + + /* initialize writebuf */ +#define FISH(a, b, c, d) do { \ + result = usb_control_msg(port->serial->dev, \ + usb_rcvctrlpipe(port->serial->dev, 0), \ + b, a, c, d, buf, 1, 1000); \ + dbg("0x%x:0x%x:0x%x:0x%x %d - %x", a, b, c, d, result, \ + buf[0]); } while (0); + +#define SOUP(a, b, c, d) do { \ + result = usb_control_msg(port->serial->dev, \ + usb_sndctrlpipe(port->serial->dev, 0), \ + b, a, c, d, NULL, 0, 1000); \ + dbg("0x%x:0x%x:0x%x:0x%x %d", a, b, c, d, result); } while (0) + + /* This is not UART related but IUU USB driver related or something */ + /* like that. Basically no IUU will accept any commands from the USB */ + /* host unless it has received the following message */ + /* sprintf(buf ,"%c%c%c%c",0x03,0x02,0x02,0x0); */ + + SOUP(0x03, 0x02, 0x02, 0x0); + kfree(buf); + iuu_led(port, 0xF000, 0xF000, 0, 0xFF); + iuu_uart_on(port); + if (boost < 100) + boost = 100; + switch (clockmode) { + case 2: /* 3.680 Mhz */ + iuu_clk(port, IUU_CLK_3680000 * boost / 100); + result = + iuu_uart_baud(port, 9600 * boost / 100, &actual, + IUU_PARITY_EVEN); + break; + case 3: /* 6.00 Mhz */ + iuu_clk(port, IUU_CLK_6000000 * boost / 100); + result = + iuu_uart_baud(port, 16457 * boost / 100, &actual, + IUU_PARITY_EVEN); + break; + default: /* 3.579 Mhz */ + iuu_clk(port, IUU_CLK_3579000 * boost / 100); + result = + iuu_uart_baud(port, 9600 * boost / 100, &actual, + IUU_PARITY_EVEN); + } + + /* set the cardin cardout signals */ + switch (cdmode) { + case 0: + iuu_cardin = 0; + iuu_cardout = 0; + break; + case 1: + iuu_cardin = TIOCM_CD; + iuu_cardout = 0; + break; + case 2: + iuu_cardin = 0; + iuu_cardout = TIOCM_CD; + break; + case 3: + iuu_cardin = TIOCM_DSR; + iuu_cardout = 0; + break; + case 4: + iuu_cardin = 0; + iuu_cardout = TIOCM_DSR; + break; + case 5: + iuu_cardin = TIOCM_CTS; + iuu_cardout = 0; + break; + case 6: + iuu_cardin = 0; + iuu_cardout = TIOCM_CTS; + break; + case 7: + iuu_cardin = TIOCM_RNG; + iuu_cardout = 0; + break; + case 8: + iuu_cardin = 0; + iuu_cardout = TIOCM_RNG; + } + + iuu_uart_flush(port); + + dbg("%s - initialization done", __FUNCTION__); + + memset(port->write_urb->transfer_buffer, IUU_UART_RX, 1); + usb_fill_bulk_urb(port->write_urb, port->serial->dev, + usb_sndbulkpipe(port->serial->dev, + port->bulk_out_endpointAddress), + port->write_urb->transfer_buffer, 1, + read_rxcmd_callback, port); + result = usb_submit_urb(port->write_urb, GFP_KERNEL); + + if (result) { + dev_err(&port->dev, "%s - failed submitting read urb," + " error %d\n", __FUNCTION__, result); + iuu_close(port, NULL); + return -EPROTO; + } else { + dbg("%s - rxcmd OK", __FUNCTION__); + } + return result; +} + +static struct usb_serial_driver iuu_device = { + .driver = { + .owner = THIS_MODULE, + .name = "iuu_phoenix", + }, + .id_table = id_table, + .num_interrupt_in = NUM_DONT_CARE, + .num_bulk_in = 1, + .num_bulk_out = 1, + .num_ports = 1, + .open = iuu_open, + .close = iuu_close, + .write = iuu_uart_write, + .read_bulk_callback = iuu_uart_read_callback, + .tiocmget = iuu_tiocmget, + .tiocmset = iuu_tiocmset, + .attach = iuu_startup, + .shutdown = iuu_shutdown, +}; + +static int __init iuu_init(void) +{ + int retval; + retval = usb_serial_register(&iuu_device); + if (retval) + goto failed_usb_serial_register; + retval = usb_register(&iuu_driver); + if (retval) + goto failed_usb_register; + info(DRIVER_DESC " " DRIVER_VERSION); + return 0; +failed_usb_register: + usb_serial_deregister(&iuu_device); +failed_usb_serial_register: + return retval; +} + +static void __exit iuu_exit(void) +{ + usb_deregister(&iuu_driver); + usb_serial_deregister(&iuu_device); +} + +module_init(iuu_init); +module_exit(iuu_exit); + +MODULE_AUTHOR("Alain Degreffe eczema@ecze.com"); + +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); + +MODULE_VERSION(DRIVER_VERSION); +module_param(debug, bool, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(debug, "Debug enabled or not"); + +module_param(xmas, bool, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(xmas, "xmas color enabled or not"); + +module_param(boost, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(boost, "overclock boost percent 100 to 500"); + +module_param(clockmode, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(clockmode, "1=3Mhz579,2=3Mhz680,3=6Mhz"); + +module_param(cdmode, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(cdmode, "Card detect mode 0=none, 1=CD, 2=!CD, 3=DSR, " + "4=!DSR, 5=CTS, 6=!CTS, 7=RING, 8=!RING"); |