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1209 lines
30 KiB
1209 lines
30 KiB
// SPDX-License-Identifier: GPL-2.0+ |
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/* |
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* Infinity Unlimited USB Phoenix driver |
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* |
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* Copyright (C) 2010 James Courtier-Dutton ([email protected]) |
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|
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* Copyright (C) 2007 Alain Degreffe ([email protected]) |
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* |
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* Original code taken from iuutool (Copyright (C) 2006 Juan Carlos Borrás) |
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* |
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* And tested with help of WB Electronics |
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*/ |
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#include <linux/kernel.h> |
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#include <linux/errno.h> |
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#include <linux/slab.h> |
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#include <linux/tty.h> |
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#include <linux/tty_driver.h> |
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#include <linux/tty_flip.h> |
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#include <linux/serial.h> |
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#include <linux/module.h> |
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#include <linux/moduleparam.h> |
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#include <linux/spinlock.h> |
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#include <linux/uaccess.h> |
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#include <linux/usb.h> |
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#include <linux/usb/serial.h> |
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#include "iuu_phoenix.h" |
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#include <linux/random.h> |
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#define DRIVER_DESC "Infinity USB Unlimited Phoenix driver" |
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static const struct usb_device_id id_table[] = { |
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{USB_DEVICE(IUU_USB_VENDOR_ID, IUU_USB_PRODUCT_ID)}, |
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{} /* Terminating entry */ |
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}; |
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MODULE_DEVICE_TABLE(usb, id_table); |
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|
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/* turbo parameter */ |
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static int boost = 100; |
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static int clockmode = 1; |
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static int cdmode = 1; |
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static int iuu_cardin; |
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static int iuu_cardout; |
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static bool xmas; |
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static int vcc_default = 5; |
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static int iuu_create_sysfs_attrs(struct usb_serial_port *port); |
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static int iuu_remove_sysfs_attrs(struct usb_serial_port *port); |
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static void read_rxcmd_callback(struct urb *urb); |
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struct iuu_private { |
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spinlock_t lock; /* store irq state */ |
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u8 line_status; |
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int tiostatus; /* store IUART SIGNAL for tiocmget call */ |
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u8 reset; /* if 1 reset is needed */ |
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int poll; /* number of poll */ |
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u8 *writebuf; /* buffer for writing to device */ |
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int writelen; /* num of byte to write to device */ |
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u8 *buf; /* used for initialize speed */ |
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u8 len; |
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int vcc; /* vcc (either 3 or 5 V) */ |
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u32 boost; |
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u32 clk; |
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}; |
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static int iuu_port_probe(struct usb_serial_port *port) |
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{ |
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struct iuu_private *priv; |
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int ret; |
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priv = kzalloc(sizeof(struct iuu_private), GFP_KERNEL); |
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if (!priv) |
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return -ENOMEM; |
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priv->buf = kzalloc(256, GFP_KERNEL); |
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if (!priv->buf) { |
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kfree(priv); |
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return -ENOMEM; |
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} |
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priv->writebuf = kzalloc(256, GFP_KERNEL); |
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if (!priv->writebuf) { |
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kfree(priv->buf); |
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kfree(priv); |
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return -ENOMEM; |
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} |
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priv->vcc = vcc_default; |
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spin_lock_init(&priv->lock); |
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usb_set_serial_port_data(port, priv); |
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ret = iuu_create_sysfs_attrs(port); |
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if (ret) { |
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kfree(priv->writebuf); |
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kfree(priv->buf); |
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kfree(priv); |
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return ret; |
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} |
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return 0; |
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} |
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static void iuu_port_remove(struct usb_serial_port *port) |
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{ |
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struct iuu_private *priv = usb_get_serial_port_data(port); |
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iuu_remove_sysfs_attrs(port); |
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kfree(priv->writebuf); |
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kfree(priv->buf); |
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kfree(priv); |
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} |
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static int iuu_tiocmset(struct tty_struct *tty, |
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unsigned int set, unsigned int clear) |
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{ |
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struct usb_serial_port *port = tty->driver_data; |
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struct iuu_private *priv = usb_get_serial_port_data(port); |
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unsigned long flags; |
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/* FIXME: locking on tiomstatus */ |
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dev_dbg(&port->dev, "%s msg : SET = 0x%04x, CLEAR = 0x%04x\n", |
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__func__, set, clear); |
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spin_lock_irqsave(&priv->lock, flags); |
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if ((set & TIOCM_RTS) && !(priv->tiostatus == TIOCM_RTS)) { |
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dev_dbg(&port->dev, "%s TIOCMSET RESET called !!!\n", __func__); |
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priv->reset = 1; |
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} |
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if (set & TIOCM_RTS) |
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priv->tiostatus = TIOCM_RTS; |
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spin_unlock_irqrestore(&priv->lock, flags); |
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return 0; |
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} |
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/* This is used to provide a carrier detect mechanism |
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* When a card is present, the response is 0x00 |
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* When no card , the reader respond with TIOCM_CD |
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* This is known as CD autodetect mechanism |
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*/ |
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static int iuu_tiocmget(struct tty_struct *tty) |
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{ |
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struct usb_serial_port *port = tty->driver_data; |
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struct iuu_private *priv = usb_get_serial_port_data(port); |
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unsigned long flags; |
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int rc; |
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spin_lock_irqsave(&priv->lock, flags); |
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rc = priv->tiostatus; |
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spin_unlock_irqrestore(&priv->lock, flags); |
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return rc; |
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} |
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static void iuu_rxcmd(struct urb *urb) |
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{ |
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struct usb_serial_port *port = urb->context; |
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int status = urb->status; |
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if (status) { |
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dev_dbg(&port->dev, "%s - status = %d\n", __func__, status); |
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/* error stop all */ |
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return; |
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} |
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memset(port->write_urb->transfer_buffer, IUU_UART_RX, 1); |
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usb_fill_bulk_urb(port->write_urb, port->serial->dev, |
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usb_sndbulkpipe(port->serial->dev, |
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port->bulk_out_endpointAddress), |
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port->write_urb->transfer_buffer, 1, |
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read_rxcmd_callback, port); |
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usb_submit_urb(port->write_urb, GFP_ATOMIC); |
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} |
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static int iuu_reset(struct usb_serial_port *port, u8 wt) |
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{ |
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struct iuu_private *priv = usb_get_serial_port_data(port); |
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int result; |
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char *buf_ptr = port->write_urb->transfer_buffer; |
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/* Prepare the reset sequence */ |
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*buf_ptr++ = IUU_RST_SET; |
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*buf_ptr++ = IUU_DELAY_MS; |
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*buf_ptr++ = wt; |
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*buf_ptr = IUU_RST_CLEAR; |
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/* send the sequence */ |
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usb_fill_bulk_urb(port->write_urb, |
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port->serial->dev, |
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usb_sndbulkpipe(port->serial->dev, |
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port->bulk_out_endpointAddress), |
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port->write_urb->transfer_buffer, 4, iuu_rxcmd, port); |
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result = usb_submit_urb(port->write_urb, GFP_ATOMIC); |
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priv->reset = 0; |
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return result; |
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} |
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/* Status Function |
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* Return value is |
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* 0x00 = no card |
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* 0x01 = smartcard |
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* 0x02 = sim card |
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*/ |
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static void iuu_update_status_callback(struct urb *urb) |
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{ |
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struct usb_serial_port *port = urb->context; |
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struct iuu_private *priv = usb_get_serial_port_data(port); |
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u8 *st; |
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int status = urb->status; |
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if (status) { |
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dev_dbg(&port->dev, "%s - status = %d\n", __func__, status); |
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/* error stop all */ |
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return; |
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} |
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st = urb->transfer_buffer; |
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dev_dbg(&port->dev, "%s - enter\n", __func__); |
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if (urb->actual_length == 1) { |
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switch (st[0]) { |
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case 0x1: |
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priv->tiostatus = iuu_cardout; |
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break; |
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case 0x0: |
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priv->tiostatus = iuu_cardin; |
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break; |
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default: |
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priv->tiostatus = iuu_cardin; |
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} |
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} |
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iuu_rxcmd(urb); |
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} |
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static void iuu_status_callback(struct urb *urb) |
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{ |
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struct usb_serial_port *port = urb->context; |
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int status = urb->status; |
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dev_dbg(&port->dev, "%s - status = %d\n", __func__, status); |
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usb_fill_bulk_urb(port->read_urb, port->serial->dev, |
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usb_rcvbulkpipe(port->serial->dev, |
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port->bulk_in_endpointAddress), |
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port->read_urb->transfer_buffer, 256, |
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iuu_update_status_callback, port); |
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usb_submit_urb(port->read_urb, GFP_ATOMIC); |
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} |
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static int iuu_status(struct usb_serial_port *port) |
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{ |
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int result; |
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memset(port->write_urb->transfer_buffer, IUU_GET_STATE_REGISTER, 1); |
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usb_fill_bulk_urb(port->write_urb, port->serial->dev, |
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usb_sndbulkpipe(port->serial->dev, |
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port->bulk_out_endpointAddress), |
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port->write_urb->transfer_buffer, 1, |
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iuu_status_callback, port); |
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result = usb_submit_urb(port->write_urb, GFP_ATOMIC); |
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return result; |
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} |
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static int bulk_immediate(struct usb_serial_port *port, u8 *buf, u8 count) |
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{ |
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int status; |
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struct usb_serial *serial = port->serial; |
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int actual = 0; |
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/* send the data out the bulk port */ |
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status = |
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usb_bulk_msg(serial->dev, |
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usb_sndbulkpipe(serial->dev, |
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port->bulk_out_endpointAddress), buf, |
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count, &actual, 1000); |
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if (status != IUU_OPERATION_OK) |
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dev_dbg(&port->dev, "%s - error = %2x\n", __func__, status); |
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else |
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dev_dbg(&port->dev, "%s - write OK !\n", __func__); |
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return status; |
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} |
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static int read_immediate(struct usb_serial_port *port, u8 *buf, u8 count) |
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{ |
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int status; |
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struct usb_serial *serial = port->serial; |
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int actual = 0; |
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/* send the data out the bulk port */ |
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status = |
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usb_bulk_msg(serial->dev, |
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usb_rcvbulkpipe(serial->dev, |
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port->bulk_in_endpointAddress), buf, |
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count, &actual, 1000); |
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if (status != IUU_OPERATION_OK) |
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dev_dbg(&port->dev, "%s - error = %2x\n", __func__, status); |
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else |
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dev_dbg(&port->dev, "%s - read OK !\n", __func__); |
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return status; |
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} |
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static int iuu_led(struct usb_serial_port *port, unsigned int R, |
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unsigned int G, unsigned int B, u8 f) |
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{ |
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int status; |
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u8 *buf; |
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buf = kmalloc(8, GFP_KERNEL); |
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if (!buf) |
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return -ENOMEM; |
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buf[0] = IUU_SET_LED; |
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buf[1] = R & 0xFF; |
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buf[2] = (R >> 8) & 0xFF; |
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buf[3] = G & 0xFF; |
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buf[4] = (G >> 8) & 0xFF; |
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buf[5] = B & 0xFF; |
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buf[6] = (B >> 8) & 0xFF; |
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buf[7] = f; |
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status = bulk_immediate(port, buf, 8); |
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kfree(buf); |
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if (status != IUU_OPERATION_OK) |
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dev_dbg(&port->dev, "%s - led error status = %2x\n", __func__, status); |
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else |
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dev_dbg(&port->dev, "%s - led OK !\n", __func__); |
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return IUU_OPERATION_OK; |
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} |
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static void iuu_rgbf_fill_buffer(u8 *buf, u8 r1, u8 r2, u8 g1, u8 g2, u8 b1, |
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u8 b2, u8 freq) |
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{ |
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*buf++ = IUU_SET_LED; |
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*buf++ = r1; |
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*buf++ = r2; |
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*buf++ = g1; |
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*buf++ = g2; |
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*buf++ = b1; |
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*buf++ = b2; |
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*buf = freq; |
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} |
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static void iuu_led_activity_on(struct urb *urb) |
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{ |
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struct usb_serial_port *port = urb->context; |
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char *buf_ptr = port->write_urb->transfer_buffer; |
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if (xmas) { |
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buf_ptr[0] = IUU_SET_LED; |
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get_random_bytes(buf_ptr + 1, 6); |
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buf_ptr[7] = 1; |
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} else { |
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iuu_rgbf_fill_buffer(buf_ptr, 255, 255, 0, 0, 0, 0, 255); |
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} |
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usb_fill_bulk_urb(port->write_urb, port->serial->dev, |
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usb_sndbulkpipe(port->serial->dev, |
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port->bulk_out_endpointAddress), |
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port->write_urb->transfer_buffer, 8 , |
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iuu_rxcmd, port); |
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usb_submit_urb(port->write_urb, GFP_ATOMIC); |
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} |
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static void iuu_led_activity_off(struct urb *urb) |
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{ |
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struct usb_serial_port *port = urb->context; |
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char *buf_ptr = port->write_urb->transfer_buffer; |
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if (xmas) { |
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iuu_rxcmd(urb); |
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return; |
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} |
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iuu_rgbf_fill_buffer(buf_ptr, 0, 0, 255, 255, 0, 0, 255); |
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usb_fill_bulk_urb(port->write_urb, port->serial->dev, |
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usb_sndbulkpipe(port->serial->dev, |
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port->bulk_out_endpointAddress), |
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port->write_urb->transfer_buffer, 8 , |
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iuu_rxcmd, port); |
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usb_submit_urb(port->write_urb, GFP_ATOMIC); |
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} |
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static int iuu_clk(struct usb_serial_port *port, int dwFrq) |
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{ |
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int status; |
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struct iuu_private *priv = usb_get_serial_port_data(port); |
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int Count = 0; |
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u8 FrqGenAdr = 0x69; |
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u8 DIV = 0; /* 8bit */ |
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u8 XDRV = 0; /* 8bit */ |
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u8 PUMP = 0; /* 3bit */ |
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u8 PBmsb = 0; /* 2bit */ |
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u8 PBlsb = 0; /* 8bit */ |
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u8 PO = 0; /* 1bit */ |
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u8 Q = 0; /* 7bit */ |
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/* 24bit = 3bytes */ |
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unsigned int P = 0; |
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unsigned int P2 = 0; |
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int frq = (int)dwFrq; |
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if (frq == 0) { |
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priv->buf[Count++] = IUU_UART_WRITE_I2C; |
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priv->buf[Count++] = FrqGenAdr << 1; |
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priv->buf[Count++] = 0x09; |
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priv->buf[Count++] = 0x00; |
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status = bulk_immediate(port, (u8 *) priv->buf, Count); |
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if (status != 0) { |
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dev_dbg(&port->dev, "%s - write error\n", __func__); |
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return status; |
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} |
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} else if (frq == 3579000) { |
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DIV = 100; |
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P = 1193; |
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Q = 40; |
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XDRV = 0; |
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} else if (frq == 3680000) { |
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DIV = 105; |
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P = 161; |
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Q = 5; |
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XDRV = 0; |
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} else if (frq == 6000000) { |
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DIV = 66; |
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P = 66; |
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Q = 2; |
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XDRV = 0x28; |
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} else { |
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unsigned int result = 0; |
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unsigned int tmp = 0; |
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unsigned int check; |
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unsigned int check2; |
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char found = 0x00; |
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unsigned int lQ = 2; |
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unsigned int lP = 2055; |
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unsigned int lDiv = 4; |
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for (lQ = 2; lQ <= 47 && !found; lQ++) |
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for (lP = 2055; lP >= 8 && !found; lP--) |
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for (lDiv = 4; lDiv <= 127 && !found; lDiv++) { |
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tmp = (12000000 / lDiv) * (lP / lQ); |
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if (abs((int)(tmp - frq)) < |
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abs((int)(frq - result))) { |
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check2 = (12000000 / lQ); |
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if (check2 < 250000) |
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continue; |
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check = (12000000 / lQ) * lP; |
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if (check > 400000000) |
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continue; |
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if (check < 100000000) |
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continue; |
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if (lDiv < 4 || lDiv > 127) |
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continue; |
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result = tmp; |
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P = lP; |
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DIV = lDiv; |
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Q = lQ; |
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if (result == frq) |
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found = 0x01; |
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} |
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} |
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} |
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P2 = ((P - PO) / 2) - 4; |
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PUMP = 0x04; |
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PBmsb = (P2 >> 8 & 0x03); |
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PBlsb = P2 & 0xFF; |
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PO = (P >> 10) & 0x01; |
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Q = Q - 2; |
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priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ |
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priv->buf[Count++] = FrqGenAdr << 1; |
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priv->buf[Count++] = 0x09; |
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priv->buf[Count++] = 0x20; /* Adr = 0x09 */ |
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priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ |
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priv->buf[Count++] = FrqGenAdr << 1; |
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priv->buf[Count++] = 0x0C; |
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priv->buf[Count++] = DIV; /* Adr = 0x0C */ |
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priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ |
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priv->buf[Count++] = FrqGenAdr << 1; |
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priv->buf[Count++] = 0x12; |
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priv->buf[Count++] = XDRV; /* Adr = 0x12 */ |
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priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ |
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priv->buf[Count++] = FrqGenAdr << 1; |
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priv->buf[Count++] = 0x13; |
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priv->buf[Count++] = 0x6B; /* Adr = 0x13 */ |
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priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ |
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priv->buf[Count++] = FrqGenAdr << 1; |
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priv->buf[Count++] = 0x40; |
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priv->buf[Count++] = (0xC0 | ((PUMP & 0x07) << 2)) | |
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(PBmsb & 0x03); /* Adr = 0x40 */ |
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priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ |
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priv->buf[Count++] = FrqGenAdr << 1; |
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priv->buf[Count++] = 0x41; |
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priv->buf[Count++] = PBlsb; /* Adr = 0x41 */ |
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priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ |
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priv->buf[Count++] = FrqGenAdr << 1; |
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priv->buf[Count++] = 0x42; |
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priv->buf[Count++] = Q | (((PO & 0x01) << 7)); /* Adr = 0x42 */ |
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priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ |
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priv->buf[Count++] = FrqGenAdr << 1; |
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priv->buf[Count++] = 0x44; |
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priv->buf[Count++] = (char)0xFF; /* Adr = 0x44 */ |
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priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ |
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priv->buf[Count++] = FrqGenAdr << 1; |
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priv->buf[Count++] = 0x45; |
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priv->buf[Count++] = (char)0xFE; /* Adr = 0x45 */ |
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priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ |
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priv->buf[Count++] = FrqGenAdr << 1; |
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priv->buf[Count++] = 0x46; |
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priv->buf[Count++] = 0x7F; /* Adr = 0x46 */ |
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priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ |
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priv->buf[Count++] = FrqGenAdr << 1; |
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priv->buf[Count++] = 0x47; |
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priv->buf[Count++] = (char)0x84; /* Adr = 0x47 */ |
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|
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status = bulk_immediate(port, (u8 *) priv->buf, Count); |
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if (status != IUU_OPERATION_OK) |
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dev_dbg(&port->dev, "%s - write error\n", __func__); |
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return status; |
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} |
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|
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static int iuu_uart_flush(struct usb_serial_port *port) |
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{ |
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struct device *dev = &port->dev; |
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int i; |
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int status; |
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u8 *rxcmd; |
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struct iuu_private *priv = usb_get_serial_port_data(port); |
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|
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if (iuu_led(port, 0xF000, 0, 0, 0xFF) < 0) |
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return -EIO; |
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|
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rxcmd = kmalloc(1, GFP_KERNEL); |
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if (!rxcmd) |
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return -ENOMEM; |
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|
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rxcmd[0] = IUU_UART_RX; |
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|
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for (i = 0; i < 2; i++) { |
|
status = bulk_immediate(port, rxcmd, 1); |
|
if (status != IUU_OPERATION_OK) { |
|
dev_dbg(dev, "%s - uart_flush_write error\n", __func__); |
|
goto out_free; |
|
} |
|
|
|
status = read_immediate(port, &priv->len, 1); |
|
if (status != IUU_OPERATION_OK) { |
|
dev_dbg(dev, "%s - uart_flush_read error\n", __func__); |
|
goto out_free; |
|
} |
|
|
|
if (priv->len > 0) { |
|
dev_dbg(dev, "%s - uart_flush datalen is : %i\n", __func__, priv->len); |
|
status = read_immediate(port, priv->buf, priv->len); |
|
if (status != IUU_OPERATION_OK) { |
|
dev_dbg(dev, "%s - uart_flush_read error\n", __func__); |
|
goto out_free; |
|
} |
|
} |
|
} |
|
dev_dbg(dev, "%s - uart_flush_read OK!\n", __func__); |
|
iuu_led(port, 0, 0xF000, 0, 0xFF); |
|
|
|
out_free: |
|
kfree(rxcmd); |
|
|
|
return status; |
|
} |
|
|
|
static void read_buf_callback(struct urb *urb) |
|
{ |
|
struct usb_serial_port *port = urb->context; |
|
unsigned char *data = urb->transfer_buffer; |
|
int status = urb->status; |
|
|
|
if (status) { |
|
if (status == -EPROTO) { |
|
/* reschedule needed */ |
|
} |
|
return; |
|
} |
|
|
|
dev_dbg(&port->dev, "%s - %i chars to write\n", __func__, urb->actual_length); |
|
|
|
if (urb->actual_length) { |
|
tty_insert_flip_string(&port->port, data, urb->actual_length); |
|
tty_flip_buffer_push(&port->port); |
|
} |
|
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 long flags; |
|
int result; |
|
int buf_len; |
|
char *buf_ptr = port->write_urb->transfer_buffer; |
|
|
|
spin_lock_irqsave(&priv->lock, flags); |
|
*buf_ptr++ = IUU_UART_ESC; |
|
*buf_ptr++ = IUU_UART_TX; |
|
*buf_ptr++ = priv->writelen; |
|
|
|
memcpy(buf_ptr, priv->writebuf, priv->writelen); |
|
buf_len = priv->writelen; |
|
priv->writelen = 0; |
|
spin_unlock_irqrestore(&priv->lock, flags); |
|
dev_dbg(&port->dev, "%s - writing %i chars : %*ph\n", __func__, |
|
buf_len, buf_len, buf_ptr); |
|
usb_fill_bulk_urb(port->write_urb, port->serial->dev, |
|
usb_sndbulkpipe(port->serial->dev, |
|
port->bulk_out_endpointAddress), |
|
port->write_urb->transfer_buffer, buf_len + 3, |
|
iuu_rxcmd, port); |
|
result = usb_submit_urb(port->write_urb, GFP_ATOMIC); |
|
usb_serial_port_softint(port); |
|
return result; |
|
} |
|
|
|
static int iuu_read_buf(struct usb_serial_port *port, int len) |
|
{ |
|
int result; |
|
|
|
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 = urb->context; |
|
struct iuu_private *priv = usb_get_serial_port_data(port); |
|
unsigned long flags; |
|
int status = urb->status; |
|
int error = 0; |
|
int len = 0; |
|
unsigned char *data = urb->transfer_buffer; |
|
priv->poll++; |
|
|
|
if (status) { |
|
dev_dbg(&port->dev, "%s - status = %d\n", __func__, status); |
|
/* error stop all */ |
|
return; |
|
} |
|
|
|
if (urb->actual_length == 1) |
|
len = (int) data[0]; |
|
|
|
if (urb->actual_length > 1) { |
|
dev_dbg(&port->dev, "%s - urb->actual_length = %i\n", __func__, |
|
urb->actual_length); |
|
error = 1; |
|
return; |
|
} |
|
/* if len > 0 call readbuf */ |
|
|
|
if (len > 0 && error == 0) { |
|
dev_dbg(&port->dev, "%s - call read buf - len to read is %i\n", |
|
__func__, 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 */ |
|
dev_dbg(&port->dev, "%s - rxcmd recall\n", __func__); |
|
iuu_led_activity_off(urb); |
|
} |
|
|
|
static int iuu_uart_write(struct tty_struct *tty, struct usb_serial_port *port, |
|
const u8 *buf, int count) |
|
{ |
|
struct iuu_private *priv = usb_get_serial_port_data(port); |
|
unsigned long flags; |
|
|
|
spin_lock_irqsave(&priv->lock, flags); |
|
|
|
count = min(count, 256 - priv->writelen); |
|
if (count == 0) |
|
goto out; |
|
|
|
/* fill the buffer */ |
|
memcpy(priv->writebuf + priv->writelen, buf, count); |
|
priv->writelen += count; |
|
out: |
|
spin_unlock_irqrestore(&priv->lock, flags); |
|
|
|
return count; |
|
} |
|
|
|
static void read_rxcmd_callback(struct urb *urb) |
|
{ |
|
struct usb_serial_port *port = urb->context; |
|
int result; |
|
int status = urb->status; |
|
|
|
if (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); |
|
dev_dbg(&port->dev, "%s - submit result = %d\n", __func__, result); |
|
} |
|
|
|
static int iuu_uart_on(struct usb_serial_port *port) |
|
{ |
|
int status; |
|
u8 *buf; |
|
|
|
buf = kmalloc(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_ONE_STOP_BIT) | (0x07 & IUU_PARITY_EVEN); |
|
|
|
status = bulk_immediate(port, buf, 4); |
|
if (status != IUU_OPERATION_OK) { |
|
dev_dbg(&port->dev, "%s - uart_on error\n", __func__); |
|
goto uart_enable_failed; |
|
} |
|
/* iuu_reset() the card after iuu_uart_on() */ |
|
status = iuu_uart_flush(port); |
|
if (status != IUU_OPERATION_OK) |
|
dev_dbg(&port->dev, "%s - uart_flush error\n", __func__); |
|
uart_enable_failed: |
|
kfree(buf); |
|
return status; |
|
} |
|
|
|
/* Disables 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) |
|
dev_dbg(&port->dev, "%s - uart_off error\n", __func__); |
|
|
|
kfree(buf); |
|
return status; |
|
} |
|
|
|
static int iuu_uart_baud(struct usb_serial_port *port, u32 baud_base, |
|
u32 *actual, u8 parity) |
|
{ |
|
int status; |
|
u32 baud; |
|
u8 *dataout; |
|
u8 DataCount = 0; |
|
u8 T1Frekvens = 0; |
|
u8 T1reload = 0; |
|
unsigned int T1FrekvensHZ = 0; |
|
|
|
dev_dbg(&port->dev, "%s - enter baud_base=%d\n", __func__, baud_base); |
|
dataout = kmalloc(5, GFP_KERNEL); |
|
|
|
if (!dataout) |
|
return -ENOMEM; |
|
/*baud = (((priv->clk / 35) * baud_base) / 100000); */ |
|
baud = baud_base; |
|
|
|
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; |
|
} |
|
|
|
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; |
|
} |
|
|
|
status = bulk_immediate(port, dataout, DataCount); |
|
if (status != IUU_OPERATION_OK) |
|
dev_dbg(&port->dev, "%s - uart_off error\n", __func__); |
|
kfree(dataout); |
|
return status; |
|
} |
|
|
|
static void iuu_set_termios(struct tty_struct *tty, |
|
struct usb_serial_port *port, struct ktermios *old_termios) |
|
{ |
|
const u32 supported_mask = CMSPAR|PARENB|PARODD; |
|
struct iuu_private *priv = usb_get_serial_port_data(port); |
|
unsigned int cflag = tty->termios.c_cflag; |
|
int status; |
|
u32 actual; |
|
u32 parity; |
|
int csize = CS7; |
|
int baud; |
|
u32 newval = cflag & supported_mask; |
|
|
|
/* Just use the ospeed. ispeed should be the same. */ |
|
baud = tty->termios.c_ospeed; |
|
|
|
dev_dbg(&port->dev, "%s - enter c_ospeed or baud=%d\n", __func__, baud); |
|
|
|
/* compute the parity parameter */ |
|
parity = 0; |
|
if (cflag & CMSPAR) { /* Using mark space */ |
|
if (cflag & PARODD) |
|
parity |= IUU_PARITY_SPACE; |
|
else |
|
parity |= IUU_PARITY_MARK; |
|
} else if (!(cflag & PARENB)) { |
|
parity |= IUU_PARITY_NONE; |
|
csize = CS8; |
|
} else if (cflag & PARODD) |
|
parity |= IUU_PARITY_ODD; |
|
else |
|
parity |= IUU_PARITY_EVEN; |
|
|
|
parity |= (cflag & CSTOPB ? IUU_TWO_STOP_BITS : IUU_ONE_STOP_BIT); |
|
|
|
/* set it */ |
|
status = iuu_uart_baud(port, |
|
baud * priv->boost / 100, |
|
&actual, parity); |
|
|
|
/* set the termios value to the real one, so the user now what has |
|
* changed. We support few fields so its easies to copy the old hw |
|
* settings back over and then adjust them |
|
*/ |
|
if (old_termios) |
|
tty_termios_copy_hw(&tty->termios, old_termios); |
|
if (status != 0) /* Set failed - return old bits */ |
|
return; |
|
/* Re-encode speed, parity and csize */ |
|
tty_encode_baud_rate(tty, baud, baud); |
|
tty->termios.c_cflag &= ~(supported_mask|CSIZE); |
|
tty->termios.c_cflag |= newval | csize; |
|
} |
|
|
|
static void iuu_close(struct usb_serial_port *port) |
|
{ |
|
/* iuu_led (port,255,0,0,0); */ |
|
|
|
iuu_uart_off(port); |
|
|
|
usb_kill_urb(port->write_urb); |
|
usb_kill_urb(port->read_urb); |
|
|
|
iuu_led(port, 0, 0, 0xF000, 0xFF); |
|
} |
|
|
|
static void iuu_init_termios(struct tty_struct *tty) |
|
{ |
|
tty->termios.c_cflag = B9600 | CS8 | CSTOPB | CREAD | PARENB | CLOCAL; |
|
tty->termios.c_ispeed = 9600; |
|
tty->termios.c_ospeed = 9600; |
|
tty->termios.c_lflag = 0; |
|
tty->termios.c_oflag = 0; |
|
tty->termios.c_iflag = 0; |
|
} |
|
|
|
static int iuu_open(struct tty_struct *tty, struct usb_serial_port *port) |
|
{ |
|
struct usb_serial *serial = port->serial; |
|
struct device *dev = &port->dev; |
|
int result; |
|
int baud; |
|
u32 actual; |
|
struct iuu_private *priv = usb_get_serial_port_data(port); |
|
|
|
baud = tty->termios.c_ospeed; |
|
|
|
dev_dbg(dev, "%s - baud %d\n", __func__, baud); |
|
usb_clear_halt(serial->dev, port->write_urb->pipe); |
|
usb_clear_halt(serial->dev, port->read_urb->pipe); |
|
|
|
priv->poll = 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); \ |
|
dev_dbg(dev, "0x%x:0x%x:0x%x:0x%x %d\n", 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); |
|
|
|
iuu_led(port, 0xF000, 0xF000, 0, 0xFF); |
|
iuu_uart_on(port); |
|
if (boost < 100) |
|
boost = 100; |
|
priv->boost = boost; |
|
switch (clockmode) { |
|
case 2: /* 3.680 Mhz */ |
|
priv->clk = IUU_CLK_3680000; |
|
iuu_clk(port, IUU_CLK_3680000 * boost / 100); |
|
result = |
|
iuu_uart_baud(port, baud * boost / 100, &actual, |
|
IUU_PARITY_EVEN); |
|
break; |
|
case 3: /* 6.00 Mhz */ |
|
iuu_clk(port, IUU_CLK_6000000 * boost / 100); |
|
priv->clk = IUU_CLK_6000000; |
|
/* Ratio of 6000000 to 3500000 for baud 9600 */ |
|
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); |
|
priv->clk = IUU_CLK_3579000; |
|
result = |
|
iuu_uart_baud(port, baud * 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); |
|
|
|
dev_dbg(dev, "%s - initialization done\n", __func__); |
|
|
|
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(dev, "%s - failed submitting read urb, error %d\n", __func__, result); |
|
iuu_close(port); |
|
} else { |
|
dev_dbg(dev, "%s - rxcmd OK\n", __func__); |
|
} |
|
|
|
return result; |
|
} |
|
|
|
/* how to change VCC */ |
|
static int iuu_vcc_set(struct usb_serial_port *port, unsigned int vcc) |
|
{ |
|
int status; |
|
u8 *buf; |
|
|
|
buf = kmalloc(5, GFP_KERNEL); |
|
if (!buf) |
|
return -ENOMEM; |
|
|
|
buf[0] = IUU_SET_VCC; |
|
buf[1] = vcc & 0xFF; |
|
buf[2] = (vcc >> 8) & 0xFF; |
|
buf[3] = (vcc >> 16) & 0xFF; |
|
buf[4] = (vcc >> 24) & 0xFF; |
|
|
|
status = bulk_immediate(port, buf, 5); |
|
kfree(buf); |
|
|
|
if (status != IUU_OPERATION_OK) |
|
dev_dbg(&port->dev, "%s - vcc error status = %2x\n", __func__, status); |
|
else |
|
dev_dbg(&port->dev, "%s - vcc OK !\n", __func__); |
|
|
|
return status; |
|
} |
|
|
|
/* |
|
* Sysfs Attributes |
|
*/ |
|
|
|
static ssize_t vcc_mode_show(struct device *dev, |
|
struct device_attribute *attr, char *buf) |
|
{ |
|
struct usb_serial_port *port = to_usb_serial_port(dev); |
|
struct iuu_private *priv = usb_get_serial_port_data(port); |
|
|
|
return sprintf(buf, "%d\n", priv->vcc); |
|
} |
|
|
|
static ssize_t vcc_mode_store(struct device *dev, |
|
struct device_attribute *attr, const char *buf, size_t count) |
|
{ |
|
struct usb_serial_port *port = to_usb_serial_port(dev); |
|
struct iuu_private *priv = usb_get_serial_port_data(port); |
|
unsigned long v; |
|
|
|
if (kstrtoul(buf, 10, &v)) { |
|
dev_err(dev, "%s - vcc_mode: %s is not a unsigned long\n", |
|
__func__, buf); |
|
goto fail_store_vcc_mode; |
|
} |
|
|
|
dev_dbg(dev, "%s: setting vcc_mode = %ld\n", __func__, v); |
|
|
|
if ((v != 3) && (v != 5)) { |
|
dev_err(dev, "%s - vcc_mode %ld is invalid\n", __func__, v); |
|
} else { |
|
iuu_vcc_set(port, v); |
|
priv->vcc = v; |
|
} |
|
fail_store_vcc_mode: |
|
return count; |
|
} |
|
static DEVICE_ATTR_RW(vcc_mode); |
|
|
|
static int iuu_create_sysfs_attrs(struct usb_serial_port *port) |
|
{ |
|
return device_create_file(&port->dev, &dev_attr_vcc_mode); |
|
} |
|
|
|
static int iuu_remove_sysfs_attrs(struct usb_serial_port *port) |
|
{ |
|
device_remove_file(&port->dev, &dev_attr_vcc_mode); |
|
return 0; |
|
} |
|
|
|
/* |
|
* End Sysfs Attributes |
|
*/ |
|
|
|
static struct usb_serial_driver iuu_device = { |
|
.driver = { |
|
.owner = THIS_MODULE, |
|
.name = "iuu_phoenix", |
|
}, |
|
.id_table = id_table, |
|
.num_ports = 1, |
|
.num_bulk_in = 1, |
|
.num_bulk_out = 1, |
|
.bulk_in_size = 512, |
|
.bulk_out_size = 512, |
|
.open = iuu_open, |
|
.close = iuu_close, |
|
.write = iuu_uart_write, |
|
.read_bulk_callback = iuu_uart_read_callback, |
|
.tiocmget = iuu_tiocmget, |
|
.tiocmset = iuu_tiocmset, |
|
.set_termios = iuu_set_termios, |
|
.init_termios = iuu_init_termios, |
|
.port_probe = iuu_port_probe, |
|
.port_remove = iuu_port_remove, |
|
}; |
|
|
|
static struct usb_serial_driver * const serial_drivers[] = { |
|
&iuu_device, NULL |
|
}; |
|
|
|
module_usb_serial_driver(serial_drivers, id_table); |
|
|
|
MODULE_AUTHOR("Alain Degreffe [email protected]"); |
|
|
|
MODULE_DESCRIPTION(DRIVER_DESC); |
|
MODULE_LICENSE("GPL"); |
|
|
|
module_param(xmas, bool, S_IRUGO | S_IWUSR); |
|
MODULE_PARM_DESC(xmas, "Xmas colors enabled or not"); |
|
|
|
module_param(boost, int, S_IRUGO | S_IWUSR); |
|
MODULE_PARM_DESC(boost, "Card overclock boost (in percent 100-500)"); |
|
|
|
module_param(clockmode, int, S_IRUGO | S_IWUSR); |
|
MODULE_PARM_DESC(clockmode, "Card clock mode (1=3.579 MHz, 2=3.680 MHz, " |
|
"3=6 Mhz)"); |
|
|
|
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)"); |
|
|
|
module_param(vcc_default, int, S_IRUGO | S_IWUSR); |
|
MODULE_PARM_DESC(vcc_default, "Set default VCC (either 3 for 3.3V or 5 " |
|
"for 5V). Default to 5.");
|
|
|