ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/drivers/usb/serial/iuu_phoenix.c b/marvell/linux/drivers/usb/serial/iuu_phoenix.c
new file mode 100644
index 0000000..7e4ec0b
--- /dev/null
+++ b/marvell/linux/drivers/usb/serial/iuu_phoenix.c
@@ -0,0 +1,1217 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Infinity Unlimited USB Phoenix driver
+ *
+ * Copyright (C) 2010 James Courtier-Dutton (James@superbug.co.uk)
+
+ * Copyright (C) 2007 Alain Degreffe (eczema@ecze.com)
+ *
+ * Original code taken from iuutool (Copyright (C) 2006 Juan Carlos Borrás)
+ *
+ * And tested with help of WB Electronics
+ */
+#include <linux/kernel.h>
+#include <linux/errno.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>
+
+#define DRIVER_DESC "Infinity USB Unlimited Phoenix driver"
+
+static const struct usb_device_id id_table[] = {
+ {USB_DEVICE(IUU_USB_VENDOR_ID, IUU_USB_PRODUCT_ID)},
+ {} /* Terminating entry */
+};
+MODULE_DEVICE_TABLE(usb, id_table);
+
+/* turbo parameter */
+static int boost = 100;
+static int clockmode = 1;
+static int cdmode = 1;
+static int iuu_cardin;
+static int iuu_cardout;
+static bool xmas;
+static int vcc_default = 5;
+
+static int iuu_create_sysfs_attrs(struct usb_serial_port *port);
+static int iuu_remove_sysfs_attrs(struct usb_serial_port *port);
+static void read_rxcmd_callback(struct urb *urb);
+
+struct iuu_private {
+ spinlock_t lock; /* store irq state */
+ u8 line_status;
+ 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 len;
+ int vcc; /* vcc (either 3 or 5 V) */
+ u32 boost;
+ u32 clk;
+};
+
+static int iuu_port_probe(struct usb_serial_port *port)
+{
+ struct iuu_private *priv;
+ int ret;
+
+ priv = kzalloc(sizeof(struct iuu_private), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ priv->buf = kzalloc(256, GFP_KERNEL);
+ if (!priv->buf) {
+ kfree(priv);
+ return -ENOMEM;
+ }
+
+ priv->writebuf = kzalloc(256, GFP_KERNEL);
+ if (!priv->writebuf) {
+ kfree(priv->buf);
+ kfree(priv);
+ return -ENOMEM;
+ }
+
+ priv->vcc = vcc_default;
+ spin_lock_init(&priv->lock);
+
+ usb_set_serial_port_data(port, priv);
+
+ ret = iuu_create_sysfs_attrs(port);
+ if (ret) {
+ kfree(priv->writebuf);
+ kfree(priv->buf);
+ kfree(priv);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int iuu_port_remove(struct usb_serial_port *port)
+{
+ struct iuu_private *priv = usb_get_serial_port_data(port);
+
+ iuu_remove_sysfs_attrs(port);
+ kfree(priv->writebuf);
+ kfree(priv->buf);
+ kfree(priv);
+
+ return 0;
+}
+
+static int iuu_tiocmset(struct tty_struct *tty,
+ unsigned int set, unsigned int clear)
+{
+ struct usb_serial_port *port = tty->driver_data;
+ struct iuu_private *priv = usb_get_serial_port_data(port);
+ unsigned long flags;
+
+ /* FIXME: locking on tiomstatus */
+ dev_dbg(&port->dev, "%s msg : SET = 0x%04x, CLEAR = 0x%04x\n",
+ __func__, set, clear);
+
+ spin_lock_irqsave(&priv->lock, flags);
+
+ if ((set & TIOCM_RTS) && !(priv->tiostatus == TIOCM_RTS)) {
+ dev_dbg(&port->dev, "%s TIOCMSET RESET called !!!\n", __func__);
+ priv->reset = 1;
+ }
+ if (set & TIOCM_RTS)
+ priv->tiostatus = TIOCM_RTS;
+
+ spin_unlock_irqrestore(&priv->lock, flags);
+ 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 tty_struct *tty)
+{
+ struct usb_serial_port *port = tty->driver_data;
+ struct iuu_private *priv = usb_get_serial_port_data(port);
+ unsigned long flags;
+ int rc;
+
+ spin_lock_irqsave(&priv->lock, flags);
+ rc = priv->tiostatus;
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ return rc;
+}
+
+static void iuu_rxcmd(struct urb *urb)
+{
+ struct usb_serial_port *port = urb->context;
+ int result;
+ int status = urb->status;
+
+ if (status) {
+ dev_dbg(&port->dev, "%s - status = %d\n", __func__, 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;
+
+ /* 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 = urb->context;
+ struct iuu_private *priv = usb_get_serial_port_data(port);
+ u8 *st;
+ int status = urb->status;
+
+ if (status) {
+ dev_dbg(&port->dev, "%s - status = %d\n", __func__, status);
+ /* error stop all */
+ return;
+ }
+
+ st = urb->transfer_buffer;
+ dev_dbg(&port->dev, "%s - enter\n", __func__);
+ 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 = urb->context;
+ int result;
+ int status = urb->status;
+
+ dev_dbg(&port->dev, "%s - status = %d\n", __func__, 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;
+
+ 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;
+
+ /* send the data out the bulk port */
+
+ status =
+ usb_bulk_msg(serial->dev,
+ usb_sndbulkpipe(serial->dev,
+ port->bulk_out_endpointAddress), buf,
+ count, &actual, 1000);
+
+ if (status != IUU_OPERATION_OK)
+ dev_dbg(&port->dev, "%s - error = %2x\n", __func__, status);
+ else
+ dev_dbg(&port->dev, "%s - write OK !\n", __func__);
+ 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;
+
+ /* send the data out the bulk port */
+ status =
+ usb_bulk_msg(serial->dev,
+ usb_rcvbulkpipe(serial->dev,
+ port->bulk_in_endpointAddress), buf,
+ count, &actual, 1000);
+
+ if (status != IUU_OPERATION_OK)
+ dev_dbg(&port->dev, "%s - error = %2x\n", __func__, status);
+ else
+ dev_dbg(&port->dev, "%s - read OK !\n", __func__);
+ 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;
+
+ 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)
+ dev_dbg(&port->dev, "%s - led error status = %2x\n", __func__, status);
+ else
+ dev_dbg(&port->dev, "%s - led OK !\n", __func__);
+ 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 = urb->context;
+ int result;
+ char *buf_ptr = port->write_urb->transfer_buffer;
+
+ if (xmas) {
+ buf_ptr[0] = IUU_SET_LED;
+ get_random_bytes(buf_ptr + 1, 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 = urb->context;
+ int result;
+ char *buf_ptr = port->write_urb->transfer_buffer;
+
+ if (xmas) {
+ iuu_rxcmd(urb);
+ return;
+ }
+
+ 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;
+
+ 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) {
+ dev_dbg(&port->dev, "%s - write error\n", __func__);
+ 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;
+ 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)
+ dev_dbg(&port->dev, "%s - write error\n", __func__);
+ return status;
+}
+
+static int iuu_uart_flush(struct usb_serial_port *port)
+{
+ struct device *dev = &port->dev;
+ int i;
+ int status;
+ u8 *rxcmd;
+ struct iuu_private *priv = usb_get_serial_port_data(port);
+
+ if (iuu_led(port, 0xF000, 0, 0, 0xFF) < 0)
+ return -EIO;
+
+ rxcmd = kmalloc(1, GFP_KERNEL);
+ if (!rxcmd)
+ return -ENOMEM;
+
+ rxcmd[0] = IUU_UART_RX;
+
+ 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;
+ 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)
+ 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 eczema@ecze.com");
+
+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.");