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-rw-r--r--recipes/linux/linux-mtx-2-2.4.27/40-option-hsdpa.patch2961
1 files changed, 2961 insertions, 0 deletions
diff --git a/recipes/linux/linux-mtx-2-2.4.27/40-option-hsdpa.patch b/recipes/linux/linux-mtx-2-2.4.27/40-option-hsdpa.patch
new file mode 100644
index 0000000000..2055f72312
--- /dev/null
+++ b/recipes/linux/linux-mtx-2-2.4.27/40-option-hsdpa.patch
@@ -0,0 +1,2961 @@
+diff -uNr linux-org/Documentation/Configure.help linux/Documentation/Configure.help
+--- linux-org/Documentation/Configure.help 2006-02-06 14:01:32.375955928 +0100
++++ linux/Documentation/Configure.help 2006-02-06 15:51:13.332498464 +0100
+@@ -4057,6 +4057,9 @@
+ The module will be called synclinkmp.o. If you want to do that, say M
+ here.
+
++Option HSDPA card support
++CONFIG_NOZOMI
++
+ ACP Modem (Mwave) support
+ CONFIG_MWAVE
+ The ACP modem (Mwave) for Linux is a WinModem. It is composed of a
+diff -uNr linux-org/drivers/char/Config.in linux/drivers/char/Config.in
+--- linux-org/drivers/char/Config.in 2006-02-06 14:01:55.767399888 +0100
++++ linux/drivers/char/Config.in 2006-02-06 15:51:07.574373832 +0100
+@@ -388,6 +388,8 @@
+
+ endmenu
+
++tristate ' Option HSDPA card support' CONFIG_NOZOMI
++
+ if [ "$CONFIG_HOTPLUG" = "y" -a "$CONFIG_PCMCIA" != "n" ]; then
+ source drivers/char/pcmcia/Config.in
+ fi
+diff -uNr linux-org/drivers/char/Makefile linux/drivers/char/Makefile
+--- linux-org/drivers/char/Makefile 2006-02-06 14:01:55.782397608 +0100
++++ linux/drivers/char/Makefile 2006-02-06 15:30:37.949305256 +0100
+@@ -331,6 +331,11 @@
+ obj-$(CONFIG_INDYDOG) += indydog.o
+ obj-$(CONFIG_8xx_WDT) += mpc8xx_wdt.o
+
++subdir-$(CONFIG_NOZOMI) += nozomi
++ifeq ($(CONFIG_NOZOMI),y)
++ obj-y += nozomi/noz.o
++endif
++
+ subdir-$(CONFIG_MWAVE) += mwave
+ ifeq ($(CONFIG_MWAVE),y)
+ obj-y += mwave/mwave.o
+diff -uNr linux-org/drivers/char/nozomi/CHANGELOG linux/drivers/char/nozomi/CHANGELOG
+--- linux-org/drivers/char/nozomi/CHANGELOG 1970-01-01 01:00:00.000000000 +0100
++++ linux/drivers/char/nozomi/CHANGELOG 2006-02-06 15:30:07.370953872 +0100
+@@ -0,0 +1,7 @@
++/*
++ * Version 1.0
++ *
++ * First version of driver, only tested with card of type F32_2.
++ * Works fine with 2.4 and 2.6 kernels.
++ * Driver also support big endian architecture.
++ */
+diff -uNr linux-org/drivers/char/nozomi/COPYING linux/drivers/char/nozomi/COPYING
+--- linux-org/drivers/char/nozomi/COPYING 1970-01-01 01:00:00.000000000 +0100
++++ linux/drivers/char/nozomi/COPYING 2006-02-06 15:30:07.371953720 +0100
+@@ -0,0 +1,340 @@
++ GNU GENERAL PUBLIC LICENSE
++ Version 2, June 1991
++
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+diff -uNr linux-org/drivers/char/nozomi/Makefile linux/drivers/char/nozomi/Makefile
+--- linux-org/drivers/char/nozomi/Makefile 1970-01-01 01:00:00.000000000 +0100
++++ linux/drivers/char/nozomi/Makefile 2006-02-06 15:30:07.379952504 +0100
+@@ -0,0 +1,25 @@
++#
++# Makefile for ACP Modem (Mwave).
++#
++# See the README file in this directory for more info. <paulsch@us.ibm.com>
++#
++# Note! Dependencies are done automagically by 'make dep', which also
++# removes any old dependencies. DON'T put your own dependencies here
++# unless it's something special (ie not a .c file).
++#
++# Note 2! The CFLAGS definitions are now inherited from the
++# parent makes..
++#
++
++# To compile in lots (~20 KiB) of run-time enablable printk()s for debugging:
++#EXTRA_CFLAGS += -DMW_TRACE
++
++# To have the mwave driver disable other uarts if necessary
++# EXTRA_CFLAGS += -DMWAVE_FUTZ_WITH_OTHER_DEVICES
++
++O_TARGET := noz.o
++
++obj-y := nozomi.o kfifo.o
++obj-m := $(O_TARGET)
++
++include $(TOPDIR)/Rules.make
+diff -uNr linux-org/drivers/char/nozomi/README linux/drivers/char/nozomi/README
+--- linux-org/drivers/char/nozomi/README 1970-01-01 01:00:00.000000000 +0100
++++ linux/drivers/char/nozomi/README 2006-02-06 15:30:07.380952352 +0100
+@@ -0,0 +1,17 @@
++To build this driver for your kernel, please check:
++
++For kernel 2.6
++---------------
++Check the Makefile and run 'make'.
++
++For kernel 2.4
++----------
++make HW=PC_24
++
++If you have troubles:
++1) Have proper kernel headers/source as your running kernel.
++2) Make sure this variable in Makefile is correct KERNELDIR = -I/path/to/kernel
++3) If the /dev/noz[0-3] will not be created automatically, do:
++mknod /dev/noz0 c 241 0; mknod /dev/noz1 c 241 1;
++mknod /dev/noz2 c 241 2; mknod /dev/noz3 c 241 3
++
+diff -uNr linux-org/drivers/char/nozomi/TODO linux/drivers/char/nozomi/TODO
+--- linux-org/drivers/char/nozomi/TODO 1970-01-01 01:00:00.000000000 +0100
++++ linux/drivers/char/nozomi/TODO 2006-02-06 15:30:07.361955240 +0100
+@@ -0,0 +1,6 @@
++* When having a noz* open and rmmod module or removing card,
++ the driver core dumps.
++
++* Does not yet support multiple cards.
++
++* Add a helpful description.
+diff -uNr linux-org/drivers/char/nozomi/kfifo.c linux/drivers/char/nozomi/kfifo.c
+--- linux-org/drivers/char/nozomi/kfifo.c 1970-01-01 01:00:00.000000000 +0100
++++ linux/drivers/char/nozomi/kfifo.c 2006-02-06 15:30:07.361955240 +0100
+@@ -0,0 +1,189 @@
++/*
++ * A simple kernel FIFO implementation.
++ *
++ * Copyright (C) 2004 Stelian Pop <stelian@popies.net>
++ *
++ * 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.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
++ *
++ */
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/slab.h>
++#include <asm/uaccess.h>
++#include "kfifo.h"
++
++
++/**
++ * kfifo_init - allocates a new FIFO using a preallocated buffer
++ * @buffer: the preallocated buffer to be used.
++ * @size: the size of the internal buffer, this have to be a power of 2.
++ * @gfp_mask: get_free_pages mask, passed to kmalloc()
++ * @lock: the lock to be used to protect the fifo buffer
++ *
++ * Do NOT pass the kfifo to kfifo_free() after use ! Simply free the
++ * struct kfifo with kfree().
++ */
++struct kfifo *kfifo_init(unsigned char *buffer, unsigned int size,
++ unsigned int gfp_mask, void *lock)
++{
++ struct kfifo *fifo;
++
++ /* size must be a power of 2 */
++ BUG_ON(size & (size - 1));
++
++ fifo = kmalloc(sizeof(struct kfifo), gfp_mask);
++ if (!fifo)
++ return ERR_PTR(-ENOMEM);
++
++ fifo->buffer = buffer;
++ fifo->size = size;
++ fifo->in = fifo->out = 0;
++
++ return fifo;
++}
++
++/**
++ * kfifo_alloc - allocates a new FIFO and its internal buffer
++ * @size: the size of the internal buffer to be allocated.
++ * @gfp_mask: get_free_pages mask, passed to kmalloc()
++ * @lock: the lock to be used to protect the fifo buffer
++ *
++ * The size will be rounded-up to a power of 2.
++ */
++struct kfifo *kfifo_alloc(unsigned int size, unsigned int gfp_mask, void *lock)
++{
++ unsigned char *buffer;
++ struct kfifo *ret;
++
++ /*
++ * round up to the next power of 2, since our 'let the indices
++ * wrap' tachnique works only in this case.
++ */
++ if (size & (size - 1)) {
++ BUG_ON(size > 0x80000000);
++ printk("Do not support no power of two!\n");
++ //size = roundup_pow_of_two(size);
++ }
++
++ buffer = kmalloc(size, gfp_mask);
++ if (!buffer)
++ return ERR_PTR(-ENOMEM);
++
++ ret = kfifo_init(buffer, size, gfp_mask, lock);
++
++ if (IS_ERR(ret))
++ kfree(buffer);
++
++ return ret;
++}
++
++/**
++ * kfifo_free - frees the FIFO
++ * @fifo: the fifo to be freed.
++ */
++void kfifo_free(struct kfifo *fifo)
++{
++ kfree(fifo->buffer);
++ kfree(fifo);
++}
++
++/**
++ * __kfifo_put - puts some data into the FIFO, no locking version
++ * @fifo: the fifo to be used.
++ * @buffer: the data to be added.
++ * @len: the length of the data to be added.
++ *
++ * This function copies at most 'len' bytes from the 'buffer' into
++ * the FIFO depending on the free space, and returns the number of
++ * bytes copied.
++ *
++ * Note that with only one concurrent reader and one concurrent
++ * writer, you don't need extra locking to use these functions.
++ */
++unsigned int __kfifo_put(struct kfifo *fifo,
++ unsigned char *buffer, unsigned int len)
++{
++ unsigned int l;
++
++ len = min(len, fifo->size - fifo->in + fifo->out);
++
++ /* first put the data starting from fifo->in to buffer end */
++ l = min(len, fifo->size - (fifo->in & (fifo->size - 1)));
++ memcpy(fifo->buffer + (fifo->in & (fifo->size - 1)), buffer, l);
++
++ /* then put the rest (if any) at the beginning of the buffer */
++ memcpy(fifo->buffer, buffer + l, len - l);
++
++ fifo->in += len;
++
++ return len;
++}
++
++/** __kfifio_put_user works like __kfifo_put, but copies data from
++ * user space.
++ */
++
++unsigned int __kfifo_put_user(struct kfifo *fifo,
++ unsigned char *buffer, unsigned int len)
++{
++ unsigned int l;
++
++ len = min(len, fifo->size - fifo->in + fifo->out);
++
++ /* first put the data starting from fifo->in to buffer end */
++ l = min(len, fifo->size - (fifo->in & (fifo->size - 1)));
++ copy_from_user(fifo->buffer + (fifo->in & (fifo->size - 1)), buffer, l);
++
++ /* then put the rest (if any) at the beginning of the buffer */
++ copy_from_user(fifo->buffer, buffer + l, len - l);
++
++ fifo->in += len;
++
++ return len;
++}
++
++
++
++/**
++ * __kfifo_get - gets some data from the FIFO, no locking version
++ * @fifo: the fifo to be used.
++ * @buffer: where the data must be copied.
++ * @len: the size of the destination buffer.
++ *
++ * This function copies at most 'len' bytes from the FIFO into the
++ * 'buffer' and returns the number of copied bytes.
++ *
++ * Note that with only one concurrent reader and one concurrent
++ * writer, you don't need extra locking to use these functions.
++ */
++unsigned int __kfifo_get(struct kfifo *fifo,
++ unsigned char *buffer, unsigned int len)
++{
++ unsigned int l;
++
++ len = min(len, fifo->in - fifo->out);
++
++ /* first get the data from fifo->out until the end of the buffer */
++ l = min(len, fifo->size - (fifo->out & (fifo->size - 1)));
++ memcpy(buffer, fifo->buffer + (fifo->out & (fifo->size - 1)), l);
++
++ /* then get the rest (if any) from the beginning of the buffer */
++ memcpy(buffer + l, fifo->buffer, len - l);
++
++ fifo->out += len;
++
++ return len;
++}
+diff -uNr linux-org/drivers/char/nozomi/kfifo.h linux/drivers/char/nozomi/kfifo.h
+--- linux-org/drivers/char/nozomi/kfifo.h 1970-01-01 01:00:00.000000000 +0100
++++ linux/drivers/char/nozomi/kfifo.h 2006-02-06 15:30:07.361955240 +0100
+@@ -0,0 +1,67 @@
++/*
++ * A simple kernel FIFO implementation.
++ *
++ * Copyright (C) 2004 Stelian Pop <stelian@popies.net>
++ *
++ * 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.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
++ *
++ */
++#ifndef _LINUX_KFIFO_H
++#define _LINUX_KFIFO_H
++
++#ifdef __KERNEL__
++
++#include <linux/version.h>
++
++#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,0)
++#warning "Don't include this header in 2.6, use header supplied with kernel"
++#endif
++
++struct kfifo {
++ unsigned char *buffer; /* the buffer holding the data */
++ unsigned int size; /* the size of the allocated buffer */
++ unsigned int in; /* data is added at offset (in % size) */
++ unsigned int out; /* data is extracted from off. (out % size) */
++};
++
++extern struct kfifo *kfifo_init(unsigned char *buffer, unsigned int size, unsigned int gfp_mask, void *lock);
++extern struct kfifo *kfifo_alloc(unsigned int size, unsigned int gfp_mask, void *lock);
++extern void kfifo_free(struct kfifo *fifo);
++extern unsigned int __kfifo_put(struct kfifo *fifo, unsigned char *buffer, unsigned int len);
++extern unsigned int __kfifo_put_user(struct kfifo *fifo, unsigned char *buffer, unsigned int len);
++extern unsigned int __kfifo_get(struct kfifo *fifo, unsigned char *buffer, unsigned int len);
++
++/**
++ * __kfifo_reset - removes the entire FIFO contents, no locking version
++ * @fifo: the fifo to be emptied.
++ */
++static inline void __kfifo_reset(struct kfifo *fifo)
++{
++ fifo->in = fifo->out = 0;
++}
++
++/**
++ * __kfifo_len - returns the number of bytes available in the FIFO, no locking version
++ * @fifo: the fifo to be used.
++ */
++static inline unsigned int __kfifo_len(struct kfifo *fifo)
++{
++ return fifo->in - fifo->out;
++}
++
++#else
++#warning "don't include kernel headers in userspace"
++#endif /* __KERNEL__ */
++#endif
+diff -uNr linux-org/drivers/char/nozomi/nozomi.c linux/drivers/char/nozomi/nozomi.c
+--- linux-org/drivers/char/nozomi/nozomi.c 1970-01-01 01:00:00.000000000 +0100
++++ linux/drivers/char/nozomi/nozomi.c 2006-02-06 15:30:07.379952504 +0100
+@@ -0,0 +1,2238 @@
++
++/* nozomi.c -- HSDPA driver Broadband Wireless Data Card - Globe Trotter
++ *
++ * Written by: Ulf Jakobsson,
++ * Jan Åkerfeldt,
++ * Stefan Thomasson,
++ *
++ * Maintained by: Paul Hardwick, p.hardwick@option.com
++ *
++ * Source has been ported from an implementation made by Filip Aben, f.aben@option.com
++ *
++ * --------------------------------------------------------------------------
++
++ Copyright (c) 2005 Option Wireless Sweden AB
++ All rights Reserved.
++
++ 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.
++
++ This program is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ GNU General Public License for more details.
++
++ You should have received a copy of the GNU General Public License
++ along with this program; if not, write to the Free Software
++ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
++
++ * --------------------------------------------------------------------------
++ */
++
++/* CHANGELOG
++ *
++ * See CHANGELOG in this package
++ */
++
++/* TODO
++ *
++ * See TODO file in this package
++ */
++
++
++/*
++ * TODO2 fix the send_reset_token() routine not to use the fixed start address
++ */
++
++
++
++#include <linux/version.h>
++
++#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,0)
++#define KERNEL_2_6
++#elif LINUX_VERSION_CODE > KERNEL_VERSION(2,4,0)
++#define KERNEL_2_4
++#endif
++
++#include <linux/module.h>
++#include <linux/pci.h>
++#include <linux/ioport.h>
++#include <linux/tty.h>
++#include <linux/tty_driver.h>
++#include <linux/tty_flip.h>
++#include <linux/serial.h>
++#include <linux/interrupt.h>
++#include <linux/kmod.h>
++#include <linux/proc_fs.h>
++#include <asm/uaccess.h>
++
++#include <linux/init.h>
++
++#define VERSION_STRING DRIVER_DESC " (build date: " __DATE__ " " __TIME__ ")"
++
++#ifdef KERNEL_2_6
++#include <linux/kfifo.h>
++#else
++#include "kfifo.h"
++#endif
++
++#ifdef KERNEL_2_4
++#ifndef IRQ_NONE
++#define IRQ_NONE
++#endif
++#ifndef IRQ_HANDLED
++#define IRQ_HANDLED
++typedef void irqreturn_t;
++#endif
++#endif
++
++#ifndef CONFIG_PCI
++#error "This driver needs PCI support to be available"
++#endif
++
++/* Macros definitions */
++
++/* Enable this to have a lot of debug printouts */
++/*#define NOZOMI_DEBUG */
++
++/* Default debug printout level */
++#define NOZOMI_DEBUG_LEVEL 0xffff
++
++#define P_BUF_SIZE 128
++#define NFO( _err_flag_, args...) \
++ do{ \
++ char t_m_p_[P_BUF_SIZE]; \
++ snprintf(t_m_p_, sizeof(t_m_p_), ##args); \
++ printk( _err_flag_ "[%d] %s(): %s\n", __LINE__, __FUNCTION__, t_m_p_); \
++} while(0)
++
++#define INFO(args...) NFO(KERN_INFO, ##args)
++#define ERR(args...) NFO( KERN_ERR, ##args)
++
++#define D1(args...) D_(0x01, ##args)
++#define D2(args...) D_(0x02, ##args)
++#define D3(args...) D_(0x04, ##args)
++#define D4(args...) D_(0x08, ##args)
++#define D5(args...) D_(0x10, ##args)
++#define D6(args...) D_(0x20, ##args)
++#define D7(args...) D_(0x40, ##args)
++#define D8(args...) D_(0x80, ##args)
++
++
++#ifdef NOZOMI_DEBUG
++#define D_(lvl, args...) D(lvl, ##args)
++ /* Do we need this settable at runtime? */
++static int nzdebug = NOZOMI_DEBUG_LEVEL;
++
++#define D(lvl, args...) do{if(lvl & nzdebug) NFO(KERN_INFO, ##args );}while(0)
++#define D_(lvl, args...) D(lvl, ##args)
++
++/* These printouts are always printed */
++
++#else
++ static const int nzdebug = 0;
++#define D_(lvl, args...)
++#endif
++
++/* TODO: rewrite to optimize macros... */
++#define SET_FCR(value__) \
++ do { \
++ writew((value__), (void*) (dc->REG_FCR )); \
++} while(0)
++
++#define SET_IER(value__, mask__) \
++ do { \
++ dc->ier_last_written = (dc->ier_last_written & ~mask__) | (value__ & mask__ );\
++ writew( dc->ier_last_written, (void*) (dc->REG_IER));\
++} while(0)
++
++#define GET_IER(read_val__) \
++ do { \
++ (read_val__) = readw((void*) (dc->REG_IER));\
++} while(0)
++
++#define GET_IIR(read_val__) \
++ do { \
++ (read_val__) = readw((void*) (dc->REG_IIR));\
++} while(0)
++
++#define GET_MEM(value__, addr__, length__) \
++ do { \
++ read_mem32( (u32*) (value__), (u32) (addr__), (length__));\
++} while(0)
++
++#define GET_MEM_BUF(value__, addr__, length__) \
++ do { \
++ read_mem32_buf( (u32*) (value__), (u32) (addr__), (length__));\
++} while(0)
++
++#define SET_MEM(addr__, value__, length__) \
++ do { \
++ write_mem32( (addr__), (u32*) (value__), (length__));\
++} while(0)
++
++#define SET_MEM_BUF(addr__, value__, length__) \
++ do { \
++ write_mem32_buf( (addr__), (u32*) (value__), (length__));\
++} while(0)
++
++
++#define TMP_BUF_MAX 256
++
++#define DUMP(buf__,len__) \
++ do { \
++ char tbuf[TMP_BUF_MAX]={0};\
++ if (len__>1) {\
++ snprintf(tbuf, len__ > TMP_BUF_MAX ? TMP_BUF_MAX : len__, "%s",buf__);\
++ if(tbuf[len__-2] == '\r') {\
++ tbuf[len__-2] = 'r';\
++ }\
++ D1( "SENDING: '%s' (%d+n)", tbuf, len__);\
++ } else {\
++ D1( "SENDING: '%s' (%d)", tbuf, len__);\
++ }\
++} while(0)
++
++#define RELEVANT_IFLAG(iflag) ((iflag) & (IGNBRK|BRKINT|IGNPAR|PARMRK|INPCK))
++
++
++/* Defines */
++#define NOZOMI_NAME "nozomi"
++#define NOZOMI_NAME_TTY "nozomi_tty"
++#define DRIVER_DESC "Nozomi driver"
++
++#define NTTY_TTY_MAJOR 241
++#define NTTY_TTY_MINORS MAX_PORT
++#define NTTY_FIFO_BUFFER_SIZE 8192
++
++/* Must be power of 2 */
++#define FIFO_BUFFER_SIZE_UL 8192
++
++/* Size of tmp send buffer to card */
++#define SEND_BUF_MAX 1024
++#define RECEIVE_BUF_MAX 4
++
++/* Our fake UART values */
++#define MCR_DTR 0x01
++#define MCR_RTS 0x02
++#define MCR_LOOP 0x04
++#define MSR_CTS 0x08
++#define MSR_CD 0x10
++#define MSR_RI 0x20
++#define MSR_DSR 0x40
++
++/* Define all types of vendors and devices to support */
++#define VENDOR1 0x1931 /* Vendor Option */
++#define DEVICE1 0x000c /* HSDPA card */
++
++#define R_IIR 0x0000 /* Interrupt Identity Register */
++#define R_FCR 0x0000 /* Flow Control Register */
++#define R_IER 0x0004 /* Interrupt Enable Register */
++
++#define CONFIG_MAGIC 0xEFEFFEFE
++#define TOGGLE_VALID 0x0000
++
++/* Definition of interrupt tokens */
++#define MDM_DL1 0x0001
++#define MDM_UL1 0x0002
++#define MDM_DL2 0x0004
++#define MDM_UL2 0x0008
++#define DIAG_DL1 0x0010
++#define DIAG_DL2 0x0020
++#define DIAG_UL 0x0040
++#define APP1_DL 0x0080
++#define APP1_UL 0x0100
++#define APP2_DL 0x0200
++#define APP2_UL 0x0400
++#define CTRL_DL 0x0800
++#define CTRL_UL 0x1000
++#define RESET 0x8000
++
++#define MDM_DL (MDM_DL1 | MDM_DL2)
++#define MDM_UL (MDM_UL1 | MDM_UL2)
++#define DIAG_DL (DIAG_DL1 | DIAG_DL2)
++
++/* modem signal definition */
++#define CTRL_DSR 0x0001
++#define CTRL_DCD 0x0002
++#define CTRL_RI 0x0004
++#define CTRL_CTS 0x0008
++
++#define CTRL_DTR 0x0001
++#define CTRL_RTS 0x0002
++
++#define MAX_PORT 4
++#define NOZOMI_MAX_PORTS 5
++
++/* Type definitions */
++
++/* There are two types of nozomi cards, one with 2048 memory and with 8192 memory */
++typedef enum {
++ F32_2 = 2048, /* Has 512 bytes downlink and uplink * 2 -> 2048 */
++ F32_8 = 9192, /* Has 3072 bytes downlink and 1024 bytes uplink * 2 -> 8192 */
++} card_type_t;
++
++/* Two different toggle channels exist */
++typedef enum {
++ CH_A=0,
++ CH_B=1,
++} channel_t;
++
++/* Port definition for the card regarding flow control */
++typedef enum {
++ CTRL_CMD = 0x00,
++ CTRL_MDM = 0x01,
++ CTRL_DIAG = 0x02,
++ CTRL_APP1 = 0x03,
++ CTRL_APP2 = 0x04,
++ CTRL_ERROR = -1,
++} ctrl_port_t;
++
++/* Ports that the nozomi has */
++typedef enum {
++ PORT_MDM = 0,
++ PORT_DIAG= 1,
++ PORT_APP1= 2,
++ PORT_APP2= 3,
++ PORT_CTRL= 4,
++ PORT_ERROR=-1,
++} port_type_t;
++
++#ifdef __ARMEB__
++/* Big endian */
++
++typedef struct {
++ unsigned enabled : 5; /* Toggle fields are valid if enabled is 0, else A-channels
++ must always be used. */
++ unsigned diag_dl : 1;
++ unsigned mdm_dl : 1;
++ unsigned mdm_ul : 1;
++} __attribute__ ((packed)) toggles_t;
++
++/* Configuration table to read at startup of card */
++/* Is for now only needed during initialization phase */
++typedef struct {
++ u32 signature;
++ u16 product_information;
++ u16 version;
++ u8 pad3[3];
++ toggles_t toggle;
++ u8 pad1[4];
++ u16 dl_mdm_len1; /* If this is 64, it can hold 60 bytes + 4 that is length field */
++ u16 dl_start;
++
++ u16 dl_diag_len1;
++ u16 dl_mdm_len2; /* If this is 64, it can hold 60 bytes + 4 that is length field */
++ u16 dl_app1_len;
++
++ u16 dl_diag_len2;
++ u16 dl_ctrl_len;
++ u16 dl_app2_len;
++ u8 pad2[16];
++ u16 ul_mdm_len1;
++ u16 ul_start;
++ u16 ul_diag_len;
++ u16 ul_mdm_len2;
++ u16 ul_app1_len;
++ u16 ul_app2_len;
++ u16 ul_ctrl_len;
++} __attribute__((packed)) config_table_t;
++
++/* This stores all control downlink flags */
++typedef struct {
++ u8 port;
++ unsigned reserved : 4;
++ unsigned CTS : 1;
++ unsigned RI : 1;
++ unsigned DCD : 1;
++ unsigned DSR : 1;
++} __attribute__ ((packed)) ctrl_dl_t;
++
++/* This stores all control uplink flags */
++typedef struct {
++ u8 port;
++ unsigned reserved : 6;
++ unsigned RTS : 1;
++ unsigned DTR : 1;
++} __attribute__ ((packed)) ctrl_ul_t;
++
++#else
++/* Little endian */
++
++/* This represents the toggle information */
++typedef struct {
++ unsigned mdm_ul : 1;
++ unsigned mdm_dl : 1;
++ unsigned diag_dl : 1;
++ unsigned enabled : 5; /* Toggle fields are valid if enabled is 0, else A-channels
++ must always be used. */
++} __attribute__ ((packed)) toggles_t;
++
++/* Configuration table to read at startup of card */
++typedef struct {
++ u32 signature;
++ u16 version;
++ u16 product_information;
++ toggles_t toggle;
++ u8 pad1[7];
++ u16 dl_start;
++ u16 dl_mdm_len1; /* If this is 64, it can hold 60 bytes + 4 that is length field */
++ u16 dl_mdm_len2;
++ u16 dl_diag_len1;
++ u16 dl_diag_len2;
++ u16 dl_app1_len;
++ u16 dl_app2_len;
++ u16 dl_ctrl_len;
++ u8 pad2[16];
++ u16 ul_start;
++ u16 ul_mdm_len2;
++ u16 ul_mdm_len1;
++ u16 ul_diag_len;
++ u16 ul_app1_len;
++ u16 ul_app2_len;
++ u16 ul_ctrl_len;
++} __attribute__((packed)) config_table_t;
++
++/* This stores all control downlink flags */
++typedef struct {
++ unsigned DSR : 1;
++ unsigned DCD : 1;
++ unsigned RI : 1;
++ unsigned CTS : 1;
++ unsigned reserverd : 4;
++ u8 port;
++} __attribute__ ((packed)) ctrl_dl_t;
++
++/* This stores all control uplink flags */
++typedef struct {
++ unsigned DTR : 1;
++ unsigned RTS : 1;
++ unsigned reserved : 6;
++ u8 port;
++} __attribute__ ((packed)) ctrl_ul_t;
++#endif
++
++/* This holds all information that is needed regarding a port */
++typedef struct {
++ u8 update_flow_control;
++ ctrl_ul_t ctrl_ul;
++ ctrl_dl_t ctrl_dl;
++ struct kfifo *fifo_ul;
++ u32 dl_addr[2];
++ u32 dl_size[2];
++ u8 toggle_dl;
++ u32 ul_addr[2];
++ u32 ul_size[2];
++ u8 toggle_ul;
++ u16 token_dl;
++
++ struct tty_struct *tty;
++ int tty_open_count;
++ struct semaphore tty_sem;
++ wait_queue_head_t tty_wait;
++ struct async_icount tty_icount;
++ int tty_index;
++ u32 rx_data, tx_data;
++ u8 tty_dont_flip;
++
++} port_t;
++
++/* Private data one for each card in the system */
++typedef struct {
++ u32 base_addr;
++ u8 closing;
++
++ /* Register addresses */
++ u32 REG_IIR;
++ u32 REG_FCR;
++ u32 REG_IER;
++
++ volatile u16 ier_last_written;
++ card_type_t card_type;
++ config_table_t config_table; /* Configuration table */
++ struct pci_dev *pdev;
++ port_t port[NOZOMI_MAX_PORTS];
++ u8 *send_buf;
++
++ struct tty_driver tty_driver;
++
++#ifdef KERNEL_2_4
++ struct tty_struct *tty_table[NTTY_TTY_MINORS];
++ struct tq_struct tty_flip_queue;
++ s32 tty_refcount;
++#endif
++#ifdef KERNEL_2_6
++ struct workqueue_struct *tty_flip_wq;
++ struct work_struct tty_flip_wq_struct;
++#endif
++
++ struct termios *tty_termios[NTTY_TTY_MINORS];
++ struct termios *tty_termios_locked[NTTY_TTY_MINORS];
++ spinlock_t spin_mutex;
++
++ u32 open_ttys;
++ struct proc_dir_entry *proc_entry;
++
++} dc_t;
++
++/* This is a data packet that is read or written to/from card */
++typedef struct {
++ u32 size; /* size is the length of the data buffer */
++ u8 *data;
++} __attribute__ ((packed)) buf_t;
++
++/* Function declarations */
++static int ntty_tty_init(dc_t *dc);
++
++static void tty_flip_queue_function(void *tmp_dc);
++
++/* Global variables */
++static struct pci_device_id nozomi_pci_tbl[] __devinitdata = {
++ {VENDOR1, DEVICE1},
++ {0, }
++};
++
++/* Used to store interrupt variables */
++typedef struct {
++ volatile u16 read_iir; /* Holds current interrupt tokens */
++} irq_t;
++
++MODULE_DEVICE_TABLE(pci, nozomi_pci_tbl);
++
++/* Representing the pci device of interest */
++static int cards_found = 0;
++static int cards_initialized = 0;
++dc_t* my_dev = NULL;
++struct pci_dev *my_pdev = NULL;
++irq_t my_irq;
++
++#define CARD_CHECK(rval) { \
++ if (cards_found == 0 || cards_found != cards_initialized) { \
++ ERR("Operation requested on uninitialized nozomi card."); \
++ return rval; \
++ } }
++
++
++static inline dc_t* get_dc_by_pdev(struct pci_dev* pdev) {
++ return my_dev;
++}
++
++static inline dc_t* get_dc_by_index(s32 index ) {
++ return my_dev;
++}
++
++static inline s32 get_index(struct tty_struct *tty) {
++#ifdef KERNEL_2_6
++ return tty->index;
++#else
++ return MINOR(tty->device) - tty->driver.minor_start;
++#endif
++}
++
++static inline port_t* get_port_by_tty(struct tty_struct *tty) {
++ return &my_dev->port[ get_index(tty) ];
++}
++
++static inline dc_t* get_dc_by_tty(struct tty_struct *tty ) {
++ return my_dev;
++}
++
++
++/* TODO: */
++/* -Optimize */
++/* -Rewrite cleaner */
++static void read_mem32(u32 *buf, u32 mem_addr_start, u32 size_bytes) {
++ u32 i = 0;
++ u32* ptr = (u32*) mem_addr_start;
++ u16* buf16;
++
++ /* 2 bytes */
++ if (size_bytes == 2) {
++ buf16 = (u16*) buf;
++ *buf16 = readw( ptr );
++ return;
++ }
++
++ while (i < size_bytes) {
++ if ( size_bytes - i == 2) {
++ /* Handle 2 bytes in the end */
++ buf16 = (u16*) buf;
++ *(buf16) = readw( ptr );
++ i+=2;
++ } else {
++ /* Read 4 bytes */
++ *(buf) = readl( ptr );
++ i+=4;
++ }
++ buf++; ptr++;
++ }
++}
++
++/* TODO: */
++/* - Rewrite cleaner */
++/* - merge with read_mem32() */
++static void read_mem32_buf(u32 *buf, u32 mem_addr_start, u32 size_bytes) {
++#ifdef __ARMEB__
++ u32 i = 0;
++ u32* ptr = (u32*) mem_addr_start;
++ u16* buf16;
++
++ /* 2 bytes */
++ if (size_bytes == 2) {
++ buf16 = (u16*) buf;
++ *buf16 = __le16_to_cpu( readw( ptr ));
++ return;
++ }
++
++ while (i < size_bytes) {
++ if ( size_bytes - i == 2) {
++ /* Handle 2 bytes in the end */
++ buf16 = (u16*) buf;
++ *(buf16) = __le16_to_cpu( readw( ptr ));
++ i+=2;
++ } else {
++ /* Read 4 bytes */
++ *(buf) = __le32_to_cpu( readl( ptr ));
++ i+=4;
++ }
++ buf++; ptr++;
++ }
++#else
++ read_mem32(buf, mem_addr_start, size_bytes);
++#endif
++}
++
++/* TODO: */
++/* -Optimize */
++/* -Rewrite cleaner */
++static u32 write_mem32(u32 mem_addr_start, u32 *buf, u32 size_bytes) {
++ u32 i = 0;
++ u32* ptr = (u32*) mem_addr_start;
++ u16* buf16;
++
++ /* 2 bytes */
++ if (size_bytes == 2) {
++ buf16 = (u16*) buf;
++ writew( *buf16, ptr);
++ return 2;
++ }
++
++ while (i < size_bytes) {
++ if ( size_bytes - i == 2) {
++ /* 2 bytes */
++ buf16 = (u16*) buf;
++ writew( *buf16, ptr);
++ i+=2;
++ } else {
++ /* 4 bytes */
++ writel( *buf, ptr );
++ i += 4;
++ }
++ buf++; ptr++;
++ }
++ return size_bytes;
++}
++
++/* Todo: */
++/* - Merge with write_mem32() */
++static u32 write_mem32_buf(u32 mem_addr_start, u32 *buf, u32 size_bytes) {
++#ifdef __ARMEB__
++ u32 i = 0;
++ u32* ptr = (u32*) mem_addr_start;
++ u16* buf16;
++
++ /* 2 bytes */
++ if (size_bytes == 2) {
++ buf16 = (u16*) buf;
++ writew( __le16_to_cpu(*buf16), ptr);
++ return 2;
++ }
++
++ while (i < size_bytes) {
++ if ( size_bytes - i == 2) {
++ /* 2 bytes */
++ buf16 = (u16*) buf;
++ writew( __le16_to_cpu(*buf16), ptr);
++ i+=2;
++ } else {
++ /* 4 bytes */
++ writel( __cpu_to_le32( *buf ), ptr );
++ i += 4;
++ }
++ buf++; ptr++;
++ }
++ return size_bytes;
++#else
++ return write_mem32(mem_addr_start, buf, size_bytes);
++#endif
++}
++
++/* Setup pointers to different channels and also setup buffer sizes. */
++static void setup_memory(dc_t *dc) {
++
++ u32 offset = dc->base_addr + dc->config_table.dl_start;
++ /* The length reported is including the length field of 4 bytes, hence subtract with 4. */
++ u16 buff_offset = 4;
++
++ /* Modem port dl configuration */
++ dc->port[PORT_MDM].dl_addr[CH_A] = offset;
++ dc->port[PORT_MDM].dl_addr[CH_B] = (offset += dc->config_table.dl_mdm_len1);
++ dc->port[PORT_MDM].dl_size[CH_A] = dc->config_table.dl_mdm_len1 - buff_offset;
++ dc->port[PORT_MDM].dl_size[CH_B] = dc->config_table.dl_mdm_len2 - buff_offset;
++
++ /* Diag port dl configuration */
++ dc->port[PORT_DIAG].dl_addr[CH_A] = (offset += dc->config_table.dl_mdm_len2);
++ dc->port[PORT_DIAG].dl_size[CH_A] = dc->config_table.dl_diag_len1 - buff_offset;
++ dc->port[PORT_DIAG].dl_addr[CH_B] = (offset += dc->config_table.dl_diag_len1);
++ dc->port[PORT_DIAG].dl_size[CH_B] = dc->config_table.dl_diag_len2 - buff_offset;
++
++ /* App1 port dl configuration */
++ dc->port[PORT_APP1].dl_addr[CH_A] = (offset += dc->config_table.dl_diag_len2);
++ dc->port[PORT_APP1].dl_size[CH_A] = dc->config_table.dl_app1_len - buff_offset;
++
++ /* App2 port dl configuration */
++ dc->port[PORT_APP2].dl_addr[CH_A] = (offset += dc->config_table.dl_app1_len);
++ dc->port[PORT_APP2].dl_size[CH_A] = dc->config_table.dl_app2_len - buff_offset;
++
++ /* Ctrl dl configuration */
++ dc->port[PORT_CTRL].dl_addr[CH_A] = (offset += dc->config_table.dl_app2_len);
++ dc->port[PORT_CTRL].dl_size[CH_A] = dc->config_table.dl_ctrl_len - buff_offset;
++
++
++ /* Modem Port ul configuration */
++ dc->port[PORT_MDM].ul_addr[CH_A] = (offset = dc->base_addr + dc->config_table.ul_start);
++ dc->port[PORT_MDM].ul_size[CH_A] = dc->config_table.ul_mdm_len1 - buff_offset;
++ dc->port[PORT_MDM].ul_addr[CH_B] = (offset += dc->config_table.ul_mdm_len1);
++ dc->port[PORT_MDM].ul_size[CH_B] = dc->config_table.ul_mdm_len2 - buff_offset;
++
++ /* Diag port ul configuration */
++ dc->port[PORT_DIAG].ul_addr[CH_A] = (offset += dc->config_table.ul_mdm_len2);
++ dc->port[PORT_DIAG].ul_size[CH_A] = dc->config_table.ul_diag_len - buff_offset;
++
++ /* App1 port ul configuration */
++ dc->port[PORT_APP1].ul_addr[CH_A] = (offset += dc->config_table.ul_diag_len);
++ dc->port[PORT_APP1].ul_size[CH_A] = dc->config_table.ul_app1_len - buff_offset;
++
++ /* App2 port ul configuration */
++ dc->port[PORT_APP2].ul_addr[CH_A] = (offset += dc->config_table.ul_app1_len);
++ dc->port[PORT_APP2].ul_size[CH_A] = dc->config_table.ul_app2_len - buff_offset;
++
++ /* Ctrl ul configuration */
++ dc->port[PORT_CTRL].ul_addr[CH_A] = (offset += dc->config_table.ul_app2_len);
++ dc->port[PORT_CTRL].ul_size[CH_A] = dc->config_table.ul_ctrl_len - buff_offset;
++ offset = dc->config_table.ul_start;
++}
++
++/* Dump config table under initalization phase */
++#ifdef NOZOMI_DEBUG
++static void dump_table(dc_t *dc) {
++ D3("signature: 0x%08X", dc->config_table.signature);
++ D3("version: 0x%04X", dc->config_table.version);
++ D3("product_information: 0x%04X", dc->config_table.product_information);
++ D3("toggle enabled: %d", dc->config_table.toggle.enabled);
++ D3("toggle up_mdm: %d", dc->config_table.toggle.mdm_ul);
++ D3("toggle dl_mdm: %d", dc->config_table.toggle.mdm_dl);
++ D3("toggle dl_dbg: %d", dc->config_table.toggle.diag_dl);
++
++ D3("dl_start: 0x%04X", dc->config_table.dl_start);
++ D3("dl_mdm_len0: 0x%04X, %d", dc->config_table.dl_mdm_len1, dc->config_table.dl_mdm_len1);
++ D3("dl_mdm_len1: 0x%04X, %d", dc->config_table.dl_mdm_len2, dc->config_table.dl_mdm_len2);
++ D3("dl_diag_len0: 0x%04X, %d", dc->config_table.dl_diag_len1, dc->config_table.dl_diag_len1);
++ D3("dl_diag_len1: 0x%04X, %d", dc->config_table.dl_diag_len2, dc->config_table.dl_diag_len2);
++ D3("dl_app1_len: 0x%04X, %d", dc->config_table.dl_app1_len, dc->config_table.dl_app1_len);
++ D3("dl_app2_len: 0x%04X, %d", dc->config_table.dl_app2_len, dc->config_table.dl_app2_len);
++ D3("dl_ctrl_len: 0x%04X, %d", dc->config_table.dl_ctrl_len, dc->config_table.dl_ctrl_len);
++ D3("ul_start: 0x%04X, %d", dc->config_table.ul_start, dc->config_table.ul_start);
++ D3("ul_mdm_len[0]: 0x%04X, %d", dc->config_table.ul_mdm_len1, dc->config_table.ul_mdm_len1);
++ D3("ul_mdm_len[1]: 0x%04X, %d", dc->config_table.ul_mdm_len2, dc->config_table.ul_mdm_len2);
++ D3("ul_diag_len: 0x%04X, %d", dc->config_table.ul_diag_len, dc->config_table.ul_diag_len);
++ D3("ul_app1_len: 0x%04X, %d", dc->config_table.ul_app1_len, dc->config_table.ul_app1_len);
++ D3("ul_app2_len: 0x%04X, %d", dc->config_table.ul_app2_len, dc->config_table.ul_app2_len);
++ D3("ul_ctrl_len: 0x%04X, %d", dc->config_table.ul_ctrl_len, dc->config_table.ul_ctrl_len);
++}
++#endif
++
++/* Read configuration table from card under intalization phase */
++/* Returns 1 if ok, else 0 */
++static int nozomi_read_config_table(dc_t *dc) {
++
++ if (cards_found > 0 && cards_found == cards_initialized) {
++ return 1;
++ }
++
++ GET_MEM( &dc->config_table, dc->base_addr + 0, sizeof(config_table_t));
++
++ /* D1( "0x%08X == 0x%08X ", dc->config_table.signature, CONFIG_MAGIC); */
++
++ if( dc->config_table.signature != CONFIG_MAGIC ) {
++ ERR("ConfigTable Bad! 0x%08X != 0x%08X", dc->config_table.signature, CONFIG_MAGIC);
++ return 0;
++ }
++
++ if( (dc->config_table.version == 0) || (dc->config_table.toggle.enabled == TOGGLE_VALID) ) {
++ int i;
++ INFO( "Second phase, configuring card");
++
++ setup_memory(dc);
++
++ dc->port[PORT_MDM].toggle_ul = dc->config_table.toggle.mdm_ul;
++ dc->port[PORT_MDM].toggle_dl = dc->config_table.toggle.mdm_dl;
++ dc->port[PORT_DIAG].toggle_dl = dc->config_table.toggle.diag_dl;
++ D1( "toggle ports: MDM UL:%d MDM DL:%d, DIAG DL:%d",
++ dc->port[PORT_MDM].toggle_ul,
++ dc->port[PORT_MDM].toggle_dl,
++ dc->port[PORT_DIAG].toggle_dl);
++
++#ifdef NOZOMI_DEBUG
++ dump_table(dc);
++#endif
++ for (i=PORT_MDM; i< MAX_PORT;i++) {
++ dc->port[i].fifo_ul = kfifo_alloc( FIFO_BUFFER_SIZE_UL, GFP_ATOMIC , NULL);
++ memset( &dc->port[i].ctrl_dl, 0, sizeof (ctrl_dl_t));
++ memset( &dc->port[i].ctrl_ul, 0, sizeof (ctrl_ul_t));
++ }
++
++ /* Enable control channel */
++ SET_IER( CTRL_DL, CTRL_DL );
++
++ INFO("Initialization OK!");
++ cards_initialized++;
++ return 1;
++ }
++
++ if( (dc->config_table.version > 0) && (dc->config_table.toggle.enabled != TOGGLE_VALID ) ) {
++ u32 offset = 0;
++ INFO( "First phase: pushing upload buffers, clearing download");
++
++ INFO("Version of card: %d", dc->config_table.version);
++
++ /* Here we should disable all I/O over F32. */
++ setup_memory(dc);
++
++ /* We should send ALL channel pair tokens back along with reset token */
++
++ /* push upload modem buffers */
++ SET_MEM( dc->port[PORT_MDM].ul_addr[CH_A], &offset, 4);
++ SET_MEM( dc->port[PORT_MDM].ul_addr[CH_B], &offset, 4);
++
++ SET_FCR( MDM_UL | DIAG_DL | MDM_DL );
++
++ D1( "First phase done");
++ }
++
++ return 1;
++}
++
++/* Enable uplink interrupts */
++static void enable_transmit_ul( port_type_t port , dc_t *dc ) {
++
++ switch( port ) {
++ case PORT_MDM: SET_IER( MDM_UL , MDM_UL ); break;
++ case PORT_DIAG: SET_IER( DIAG_UL, DIAG_UL ); break;
++ case PORT_APP1: SET_IER( APP1_UL, APP1_UL ); break;
++ case PORT_APP2: SET_IER( APP2_UL, APP2_UL ); break;
++ case PORT_CTRL: SET_IER( CTRL_UL, CTRL_UL ); break;
++ default:
++ ERR("Called with wrong port?");
++ break;
++ };
++}
++
++/* Disable uplink interrupts */
++static void disable_transmit_ul( port_type_t port , dc_t *dc ) {
++
++ switch( port ) {
++ case PORT_MDM: SET_IER( 0 ,MDM_UL ); break;
++ case PORT_DIAG: SET_IER( 0, DIAG_UL ); break;
++ case PORT_APP1: SET_IER( 0, APP1_UL ); break;
++ case PORT_APP2: SET_IER( 0, APP2_UL ); break;
++ case PORT_CTRL: SET_IER( 0, CTRL_UL ); break;
++ default:
++ ERR("Called with wrong port?");
++ break;
++ };
++}
++
++/* Enable downlink interrupts */
++static void enable_transmit_dl( port_type_t port , dc_t *dc ) {
++
++ switch( port ) {
++ case PORT_MDM: SET_IER( MDM_DL , MDM_DL ); break;
++ case PORT_DIAG: SET_IER( DIAG_DL, DIAG_DL ); break;
++ case PORT_APP1: SET_IER( APP1_DL, APP1_DL ); break;
++ case PORT_APP2: SET_IER( APP2_DL, APP2_DL ); break;
++ case PORT_CTRL: SET_IER( CTRL_DL, CTRL_DL ); break;
++ default:
++ ERR("Called with wrong port?");
++ break;
++ };
++}
++
++/* Disable downlink interrupts */
++static void disable_transmit_dl( port_type_t port , dc_t *dc ) {
++
++ switch( port ) {
++ case PORT_MDM: SET_IER( 0 ,MDM_DL ); break;
++ case PORT_DIAG: SET_IER( 0, DIAG_DL ); break;
++ case PORT_APP1: SET_IER( 0, APP1_DL ); break;
++ case PORT_APP2: SET_IER( 0, APP2_DL ); break;
++ case PORT_CTRL: SET_IER( 0, CTRL_DL ); break;
++ default:
++ ERR("Called with wrong port?");
++ break;
++ };
++}
++
++/* Return 1 - send buffer to card and ack. */
++/* Return 0 - don't ack, don't send buffer to card. */
++int send_data( port_type_t index, dc_t *dc ) {
++ u32 size = 0;
++ port_t *port = &dc->port[index];
++ u8 toggle = port->toggle_ul;
++ u32 addr = port->ul_addr[toggle];
++ u32 ul_size = port->ul_size[toggle];
++ struct tty_struct *tty = port->tty;
++
++ if (index >= NTTY_TTY_MINORS) {
++ ERR("Called with wrong index?");
++ return 0;
++ }
++
++ /* Get data from tty and place in buf for now */
++ size = __kfifo_get( port->fifo_ul, dc->send_buf, ul_size < SEND_BUF_MAX ? ul_size : SEND_BUF_MAX );
++
++ if (size == 0) {
++ D4("No more data to send, disable link:");
++ return 0;
++ }
++
++ port->tx_data += size;
++
++ /* DUMP(buf, size); */
++
++ /* Write length + data */
++ SET_MEM( addr, &size, 4 );
++ SET_MEM_BUF( addr + 4, dc->send_buf, size);
++
++ if (port->tty) {
++ if ((tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) && tty->ldisc.write_wakeup) {
++ tty->ldisc.write_wakeup(tty);
++ }
++ wake_up_interruptible(&tty->write_wait);
++ }
++
++ return 1;
++}
++
++/* If all data has been read, return 1, else 0 */
++static int receive_data( port_type_t index, dc_t* dc ) {
++ u8 buf[RECEIVE_BUF_MAX] = {0};
++ int size;
++ u32 offset = 4;
++ port_t *port = &dc->port[index];
++ u8 toggle = port->toggle_dl;
++ u32 addr = port->dl_addr[toggle];
++ struct tty_struct *tty = port->tty;
++ int i;
++
++ if ( !tty ) {
++ D1("tty not open for port: %d?", index);
++ return 1;
++ }
++
++ if (test_bit(TTY_DONT_FLIP, &tty->flags)) {
++ D6("TTY_DONT_FLIP set!! %d", index);
++ /* Here we disable interrupt for that port and schedule */
++/* task. Task wakes up a little bit later and enables interrupt.. */
++ port->tty_dont_flip = 1;
++ disable_transmit_dl(index, dc);
++#ifdef KERNEL_2_4
++ schedule_task(&dc->tty_flip_queue);
++#endif
++#ifdef KERNEL_2_6
++ if (!queue_work(dc->tty_flip_wq, &dc->tty_flip_wq_struct)) {
++ ERR("Call to queue_work() failed.");
++ }
++#endif
++ return 0;
++ }
++
++ GET_MEM( &size, addr, 4 );
++ /* D1( "%d bytes port: %d", size, index); */
++
++ if ( test_bit( TTY_THROTTLED, & tty->flags) ) {
++ D1("No room in tty, don't read data, don't ack interrupt, disable interrupt");
++
++ /* disable interrupt in downlink... */
++ disable_transmit_dl(index, dc);
++ return 0;
++ }
++
++ if (size == 0) {
++ ERR("size == 0?");
++ return 1;
++ }
++
++ while( size > 0 ) {
++ GET_MEM_BUF(buf, addr + offset, 4);
++
++ i = 0;
++ while (i < 4 && size > 0) {
++ if (tty->flip.count >= TTY_FLIPBUF_SIZE) {
++ tty_flip_buffer_push(tty);
++ }
++ tty_insert_flip_char(tty, buf[i], TTY_NORMAL);
++ port->rx_data++;
++ i++;
++ size--;
++ }
++
++ offset += 4;
++ }
++
++ tty_flip_buffer_push(tty);
++
++ return 1;
++}
++
++/* Debug for interrupts */
++#ifdef NOZOMI_DEBUG
++static char* interrupt2str( u16 interrupt) {
++ static char buf[TMP_BUF_MAX];
++ char *p = buf;
++
++ interrupt & MDM_DL1 ? p += snprintf(p, TMP_BUF_MAX, "MDM_DL1 "):0;
++ interrupt & MDM_DL2 ? p += snprintf(p, TMP_BUF_MAX, "MDM_DL2 "):0;
++
++ interrupt & MDM_UL1 ? p += snprintf(p, TMP_BUF_MAX, "MDM_UL1 "):0;
++ interrupt & MDM_UL2 ? p += snprintf(p, TMP_BUF_MAX, "MDM_UL2 "):0;
++
++ interrupt & DIAG_DL1 ? p += snprintf(p, TMP_BUF_MAX, "DIAG_DL1 "):0;
++ interrupt & DIAG_DL2 ? p += snprintf(p, TMP_BUF_MAX, "DIAG_DL2 "):0;
++
++ interrupt & DIAG_UL ? p += snprintf(p, TMP_BUF_MAX, "DIAG_UL "):0;
++
++ interrupt & APP1_DL ? p += snprintf(p, TMP_BUF_MAX, "APP1_DL "):0;
++ interrupt & APP2_DL ? p += snprintf(p, TMP_BUF_MAX, "APP2_DL "):0;
++
++ interrupt & APP1_UL ? p += snprintf(p, TMP_BUF_MAX, "APP1_UL "):0;
++ interrupt & APP2_UL ? p += snprintf(p, TMP_BUF_MAX, "APP2_UL "):0;
++
++ interrupt & CTRL_DL ? p += snprintf(p, TMP_BUF_MAX, "CTRL_DL "):0;
++ interrupt & CTRL_UL ? p += snprintf(p, TMP_BUF_MAX, "CTRL_UL "):0;
++
++ interrupt & RESET ? p += snprintf(p, TMP_BUF_MAX, "RESET "):0;
++
++ return buf;
++}
++#endif
++
++/* Receive flow control */
++/* Return 1 - If ok, else 0 */
++static int receive_flow_control( dc_t *dc, irq_t *m) {
++ port_type_t port = PORT_MDM;
++ ctrl_dl_t ctrl_dl;
++ ctrl_dl_t old_ctrl;
++ u16 enable_ier = 0;
++
++ GET_MEM( &ctrl_dl, dc->port[PORT_CTRL].dl_addr[CH_A], 2);
++
++ switch( ctrl_dl.port ) {
++ case CTRL_CMD:
++ D1( "The Base Band sends this value as a response to a request for IMSI detach sent"
++ " over the control channel uplink (see section 7.6.1).");
++ break;
++ case CTRL_MDM: port = PORT_MDM; enable_ier = MDM_DL; break;
++ case CTRL_DIAG: port = PORT_DIAG; enable_ier = DIAG_DL; break;
++ case CTRL_APP1: port = PORT_APP1; enable_ier = APP1_DL; break;
++ case CTRL_APP2: port = PORT_APP2; enable_ier = APP2_DL; break;
++ default:
++ ERR("ERROR: flow control received for non-existing port");
++ return 0;
++ };
++
++ D1( "0x%04X->0x%04X", *((u16*) &dc->port[port].ctrl_dl), *((u16*)&ctrl_dl));
++
++ old_ctrl = dc->port[port].ctrl_dl;
++ dc->port[port].ctrl_dl = ctrl_dl;
++
++ if ( old_ctrl.CTS == 1 && ctrl_dl.CTS == 0 ) {
++ D1( "Disable interrupt (0x%04X) on port: %d", enable_ier, port);
++ disable_transmit_ul(port, dc);
++
++ } else if ( old_ctrl.CTS == 0 && ctrl_dl.CTS == 1 ) {
++
++ if ( __kfifo_len(dc->port[port].fifo_ul) ) {
++ D1( "Enable interrupt (0x%04X) on port: %d", enable_ier, port);
++ D1( "Data in buffer [%d], enable transmit! ", __kfifo_len(dc->port[port].fifo_ul) );
++ enable_transmit_ul( port, dc );
++ } else {
++ D1( "No data in buffer...");
++ }
++ }
++
++ if(*(u16*)&old_ctrl == *(u16*)&ctrl_dl)
++ {
++ D1( " No change in mctrl");
++ return 1;
++ }
++ /* Update statistics */
++ if(old_ctrl.CTS != ctrl_dl.CTS) {
++ dc->port[port].tty_icount.cts++;
++ }
++ if(old_ctrl.DSR != ctrl_dl.DSR) {
++ dc->port[port].tty_icount.dsr++;
++ }
++ if(old_ctrl.RI != ctrl_dl.RI) {
++ dc->port[port].tty_icount.rng++;
++ }
++ if(old_ctrl.DCD != ctrl_dl.DCD) {
++ dc->port[port].tty_icount.dcd++;
++ }
++ D1("port: %d DCD(%d), CTS(%d), RI(%d), DSR(%d)",
++ port,
++ dc->port[port].tty_icount.dcd, dc->port[port].tty_icount.cts,
++ dc->port[port].tty_icount.rng, dc->port[port].tty_icount.dsr);
++
++ return 1;
++}
++
++/* TODO: */
++/* - return ctrl_port_t */
++static u8 port2ctrl(port_type_t port) {
++ switch( port ) {
++ case PORT_MDM:
++ return CTRL_MDM;
++ case PORT_DIAG:
++ return CTRL_DIAG;
++ case PORT_APP1:
++ return CTRL_APP1;
++ case PORT_APP2:
++ return CTRL_APP2;
++ default:
++ ERR("ERROR: send flow control received for non-existing port");
++ return -1;
++ };
++ return -1;
++}
++
++/* Send flow control, can only update one channel at a time */
++/* Return 0 - If we have updated all flow control */
++/* Return 1 - If we need to update more flow control, ack current enable more */
++static int send_flow_control( dc_t *dc ) {
++ u32 i, more_flow_control_to_be_updated = 0;
++ u16* ctrl;
++
++ for( i=PORT_MDM; i<MAX_PORT ; i++ ) {
++ if( dc->port[i].update_flow_control ) {
++ if ( more_flow_control_to_be_updated ) {
++ /* We have more flow control to be updated */
++ return 1;
++ }
++ dc->port[i].ctrl_ul.port = port2ctrl(i);
++ ctrl = (u16*) &dc->port[i].ctrl_ul;
++ /* D1( "sending flow control 0x%04X for port %d, %d", (u16) *ctrl, i, dc->port[i].ctrl_ul.port ); */
++ SET_MEM( dc->port[PORT_CTRL].ul_addr[0], (u32*) ctrl, 2 );
++ dc->port[i].update_flow_control = 0;
++ more_flow_control_to_be_updated = 1;
++ }
++ }
++ return 0;
++}
++
++/* Handle donlink data, ports that are handled are modem and diagnostics */
++/* Return 1 - ok */
++/* Return 0 - toggle fields are out of sync */
++static int handle_data_dl(dc_t *dc, irq_t *m, port_type_t port, u8 *toggle, u16 mask1, u16 mask2) {
++
++ if ( *toggle == 0 && m->read_iir & mask1 ) {
++ if (receive_data( port, dc )) {
++ SET_FCR( mask1 );
++ *toggle = !(*toggle);
++ }
++
++ if ( m->read_iir & mask2 ) {
++ if (receive_data( port, dc )) {
++ SET_FCR( mask2 );
++ *toggle = !(*toggle);
++ }
++ }
++ } else if ( *toggle == 1 && m->read_iir & mask2 ) {
++ if (receive_data( port, dc )) {
++ SET_FCR( mask2 );
++ *toggle = !(*toggle);
++ }
++
++ if ( m->read_iir & mask1 ) {
++ if (receive_data( port, dc )) {
++ SET_FCR( mask1 );
++ *toggle = !(*toggle);
++ }
++ }
++ } else {
++ ERR("port out of sync!, toggle:%d", *toggle);
++ return 0;
++ }
++ return 1;
++}
++
++/* Handle uplink data, this is currently for the modem port */
++/* Return 1 - ok */
++/* Return 0 - toggle field are out of sync */
++static int handle_data_ul(dc_t *dc, irq_t *m, port_type_t port) {
++
++ u8 *toggle = &(dc->port[port].toggle_ul);
++
++ if ( *toggle==0 && m->read_iir & MDM_UL1 ) {
++ SET_IER( 0, MDM_UL );
++ if (send_data(port, dc)) {
++ SET_FCR( MDM_UL1 );
++ SET_IER( MDM_UL, MDM_UL);
++ *toggle = !*toggle;
++ }
++
++ if ( m->read_iir & MDM_UL2 ) {
++ SET_IER( 0, MDM_UL );
++ if (send_data(port, dc)) {
++ SET_FCR( MDM_UL2 );
++ SET_IER( MDM_UL, MDM_UL);
++ *toggle = !*toggle;
++ }
++ }
++
++ } else if ( *toggle==1 && m->read_iir & MDM_UL2 ) {
++ SET_IER( 0, MDM_UL );
++ if (send_data(port, dc)) {
++ SET_FCR( MDM_UL2 );
++ SET_IER( MDM_UL, MDM_UL);
++ *toggle = !*toggle;
++ }
++
++ if ( m->read_iir & MDM_UL1 ) {
++ SET_IER( 0, MDM_UL );
++ if (send_data(port, dc)) {
++ SET_FCR( MDM_UL1 );
++ SET_IER( MDM_UL, MDM_UL);
++ *toggle = !*toggle;
++ }
++ }
++ } else {
++ SET_FCR( m->read_iir & MDM_UL );
++ ERR("port out of sync!");
++ return 0;
++ }
++ return 1;
++}
++
++static irqreturn_t interrupt_handler(int irq, void *dev_id, struct pt_regs *regs) {
++ dc_t *dc = NULL;
++ irq_t* m = &my_irq;
++
++ if (my_dev && my_dev->pdev != dev_id) {
++ return IRQ_NONE;
++ }
++
++ if ( !(dc = get_dc_by_pdev(dev_id)) ) {
++ ERR("Could not find device context from pci_dev: %d", (u32) dev_id);
++ return IRQ_NONE;
++ }
++
++ GET_IIR( m->read_iir );
++
++ /* Just handle interrupt enabled in IER (by masking with dc->ier_last_written) */
++ m->read_iir &= dc->ier_last_written;
++
++ if (m->read_iir == 0) {
++ return IRQ_NONE;
++ }
++
++ if (dc == NULL ) {
++ ERR("ERROR!!");
++ return IRQ_NONE;
++ }
++
++ spin_lock(&dc->spin_mutex);
++
++ D4( "%s irq:0x%04X, prev:0x%04X", interrupt2str(m->read_iir), m->read_iir, dc->ier_last_written);
++
++ if ( m->read_iir & RESET) {
++ if( !nozomi_read_config_table(dc) ) {
++ SET_IER( 0, 0xFFFF);
++ ERR("ERR: Could not read status from card, we should disable interface");
++ } else {
++ SET_FCR( RESET );
++ }
++ goto exit_handler; /* No more useful info if this was the reset interrupt. */
++ }
++ if ( m->read_iir & CTRL_UL ) {
++ D1( "CTRL_UL");
++ SET_IER( 0, CTRL_UL );
++ if ( send_flow_control(dc) ) {
++ SET_FCR( CTRL_UL );
++ SET_IER( CTRL_UL, CTRL_UL );
++ }
++ }
++ if ( m->read_iir & CTRL_DL ) {
++ receive_flow_control(dc, m);
++ SET_FCR( CTRL_DL );
++ }
++ if ( m->read_iir & MDM_DL ) {
++ if ( !(handle_data_dl(dc, m, PORT_MDM, &(dc->port[PORT_MDM].toggle_dl), MDM_DL1, MDM_DL2)) ) {
++ ERR("MDM_DL out of sync!");
++ goto exit_handler;
++ }
++ }
++ if ( m->read_iir & MDM_UL ) {
++ if ( !handle_data_ul(dc, m, PORT_MDM ) ) {
++ ERR("MDM_UL out of sync!");
++ goto exit_handler;
++ }
++ }
++ if ( m->read_iir & DIAG_DL ) {
++ if ( !(handle_data_dl(dc, m, PORT_DIAG, &(dc->port[PORT_DIAG].toggle_dl), DIAG_DL1, DIAG_DL2)) ) {
++ ERR("DIAG_DL out of sync!");
++ goto exit_handler;
++ }
++ }
++ if ( m->read_iir & DIAG_UL ) {
++ SET_IER( 0, DIAG_UL );
++ if( send_data( PORT_DIAG, dc ) ) {
++ SET_FCR( DIAG_UL );
++ SET_IER( DIAG_UL, DIAG_UL );
++ }
++ }
++ if ( m->read_iir & APP1_DL ) {
++ if (receive_data( PORT_APP1, dc ) ) {
++ SET_FCR( APP1_DL );
++ }
++ }
++ if ( m->read_iir & APP1_UL ) {
++ SET_IER( 0, APP1_UL );
++ if(send_data( PORT_APP1, dc )) {
++ SET_FCR( APP1_UL );
++ SET_IER( APP1_UL, APP1_UL );
++ }
++ }
++ if ( m->read_iir & APP2_DL ) {
++ if (receive_data( PORT_APP2, dc )) {
++ SET_FCR( APP2_DL );
++ }
++ }
++ if ( m->read_iir & APP2_UL ) {
++ SET_IER( 0, APP2_UL );
++ if(send_data( PORT_APP2, dc )) {
++ SET_FCR( APP2_UL );
++ SET_IER( APP2_UL, APP2_UL );
++ }
++ }
++
++ exit_handler:
++ spin_unlock(&dc->spin_mutex);
++ return IRQ_HANDLED;
++}
++
++/* Request a shared IRQ from system */
++static int nozomi_setup_interrupt(struct pci_dev *pdev) {
++
++ int rval = 0;
++
++ if ( (rval = request_irq( pdev->irq, &interrupt_handler, SA_SHIRQ, NOZOMI_NAME, pdev )) ) {
++ ERR("Cannot open because IRQ %d is already in use.", pdev->irq );
++ return rval;
++ }
++
++ return rval;
++}
++
++static void nozomi_get_card_type(dc_t *dc) {
++ u32 i, size=0;
++ for(i=0;i<6;i++) {
++ size += pci_resource_len(dc->pdev, i);
++ }
++
++ /* Assume card type F32_8 if no match */
++ dc->card_type = size == 2048 ? F32_2 : F32_8;
++
++ INFO("Card type is: %d", dc->card_type );
++}
++
++void nozomi_setup_private_data(dc_t *dc) {
++ u32 offset = dc->base_addr + dc->card_type/2;
++ int i;
++
++ dc->REG_FCR = offset + R_FCR;
++ dc->REG_IIR = offset + R_IIR;
++ dc->REG_IER = offset + R_IER;
++ dc->ier_last_written = 0;
++ dc->closing = 0;
++
++ dc->port[PORT_MDM ].token_dl = MDM_DL;
++ dc->port[PORT_DIAG].token_dl = DIAG_DL;
++ dc->port[PORT_APP1].token_dl = APP1_DL;
++ dc->port[PORT_APP2].token_dl = APP2_DL;
++
++ for(i=PORT_MDM;i<MAX_PORT;i++) {
++ dc->port[i].rx_data = dc->port[i].tx_data = 0;
++ dc->port[i].tty_dont_flip = 0;
++ }
++}
++
++
++static void tty_flip_queue_function(void *tmp_dc) {
++ dc_t *dc = (dc_t*) tmp_dc;
++ int i;
++
++ /* Enable interrupt for that port */
++ for(i=0;i<MAX_PORT;i++) {
++ if (dc->port[i].tty_dont_flip) {
++ D6("Enable for port: %d", i);
++ dc->port[i].tty_dont_flip = 0;
++ enable_transmit_dl(dc->port[i].tty_index, dc);
++ }
++ }
++}
++
++static int read_proc_card_type(char *buf, char **start, off_t offset, int len) {
++ dc_t *dc = get_dc_by_index(0);
++ len = 0;
++
++ len += sprintf(buf+len,"%d\n", dc->card_type);
++ return len;
++}
++
++static int read_proc_open_ttys(char *buf, char **start, off_t offset, int len) {
++ dc_t *dc = get_dc_by_index(0);
++ len = 0;
++
++ len += sprintf(buf+len,"%d\n", dc->open_ttys);
++ return len;
++}
++
++static int read_proc_version(char *buf, char **start, off_t offset, int len) {
++ len = 0;
++
++ len += sprintf(buf+len, "%s\n", VERSION_STRING);
++ return len;
++}
++
++static int read_proc_rtx(char *buf, char **start, off_t offset, int len) {
++ dc_t *dc = get_dc_by_index(0);
++ int i;
++
++ len = 0;
++
++
++ for(i=PORT_MDM;i<MAX_PORT;i++) {
++ len += sprintf(buf+len,"noz%d rx: %d, tx: %d\n", i, dc->port[i].rx_data, dc->port[i].tx_data);
++ }
++ return len;
++}
++
++static void make_proc_dirs(void) {
++ dc_t *dc = get_dc_by_index(0);
++
++ dc->proc_entry = proc_mkdir("nozomi", &proc_root);
++
++ /* Register the read_proc */
++ if ( !create_proc_info_entry("card_type",0,dc->proc_entry,read_proc_card_type) ) {
++ ERR("ERROR: failed to register read_procmem");
++ }
++ if ( !create_proc_info_entry("open_ttys",0,dc->proc_entry,read_proc_open_ttys) ) {
++ ERR("ERROR: failed to register read_procmem");
++ }
++ if ( !create_proc_info_entry("rtx",0,dc->proc_entry,read_proc_rtx) ) {
++ ERR("ERROR: failed to register read_procmem");
++ }
++ if ( !create_proc_info_entry("version",0,dc->proc_entry,read_proc_version) ) {
++ ERR("ERROR: failed to register read_procmem");
++ }
++}
++
++static void remove_proc_dirs(void) {
++ dc_t *dc = get_dc_by_index(0);
++
++ remove_proc_entry("card_type", dc->proc_entry);
++ remove_proc_entry("open_ttys", dc->proc_entry);
++ remove_proc_entry("rtx", dc->proc_entry);
++ remove_proc_entry("version", dc->proc_entry);
++ remove_proc_entry("nozomi", &proc_root);
++}
++
++static void send_reset_token(dc_t *dc) {
++
++ ctrl_ul_t ctrl;
++
++ /* Send 0x0001, command card to resend the reset token. */
++ /* This is to get the reset when the module is reloaded. */
++ ctrl.port = 0x00; ctrl.reserved = 0; ctrl.RTS=0; ctrl.DTR=1;
++ D1( "sending flow control 0x%04X", * ((u16*) &ctrl) );
++
++
++ /*SET_MEM( dc->port[PORT_CTRL].ul_addr[0], (u32*) &ctrl, 2 );*/
++ /* hack alert :D (fixed address determined experimentally) */
++ SET_MEM( dc->base_addr + 0x000002FC, (u32*) &ctrl, 2 );
++ SET_FCR( CTRL_UL ); /* push the token to the card. */
++ D1( "sent flow control 0x%04X", * ((u16*) &ctrl) );
++}
++
++/* Allocate memory for one device */
++static int __devinit nozomi_card_init(struct pci_dev *pdev, const struct pci_device_id *ent) {
++ int ret = -EIO;
++ dc_t *dc=NULL;
++
++ cards_found++;
++ INFO("Init, cards_found: %d", cards_found);
++
++ if (!(my_dev = kmalloc(sizeof(dc_t), GFP_KERNEL))) {
++ D1( "Could not allocate memory");
++ return -EIO;
++ }
++
++ memset(my_dev, 0, sizeof( dc_t ));
++
++ if (cards_found > 1) {
++ ERR("This driver only supports 1 device");
++ return -ENODEV;
++ }
++
++ my_dev->pdev = pdev;
++ dc = my_dev;
++
++ /* Find out what card type it is */
++ nozomi_get_card_type(dc);
++
++ if (pci_enable_device(dc->pdev)) {
++ ERR("Not possible to enable PCI Device");
++ return -ENODEV;
++ }
++
++ if ( (dc->base_addr = pci_resource_start(dc->pdev, 0)) == 0x0000) {
++ ERR("No I/O-Address for card detected");
++ ret = -ENODEV;
++ goto err_disable_device;
++ }
++
++ if (!(dc->base_addr = (u32) ioremap(dc->base_addr, dc->card_type))) {
++ ERR("No I/O-Address for card detected");
++ ret = -ENODEV;
++ goto err_disable_device;
++ }
++
++ dc->open_ttys=0;
++
++ nozomi_setup_private_data(dc);
++
++ if (pci_request_regions(dc->pdev, NOZOMI_NAME)) {
++ ERR("I/O address 0x%04x already in use",
++ (int) /* nozomi_private.io_addr */ 0);
++ ret = -EIO;
++ goto err_disable_regions;
++ }
++
++ if ( !(dc->send_buf = kmalloc(SEND_BUF_MAX, GFP_KERNEL))) {
++ ERR("Could not allocate send buffer?");
++ goto err_disable_regions;
++ }
++
++ /* Disable all interrupts */
++ SET_IER( 0 , 0xFFFF );
++
++ /* Setup interrupt handler */
++ if (nozomi_setup_interrupt(dc->pdev)) {
++ ret = -EIO;
++ goto err_disable_regions;
++ }
++
++ D1( "base_addr: 0x%08X", dc->base_addr);
++
++#ifdef KERNEL_2_4
++ dc->tty_flip_queue.list.next = NULL;
++ dc->tty_flip_queue.list.prev = NULL;
++ dc->tty_flip_queue.sync = 0;
++ dc->tty_flip_queue.data = dc;
++ dc->tty_flip_queue.routine = tty_flip_queue_function;
++#endif
++#ifdef KERNEL_2_6
++ if ( !(dc->tty_flip_wq = create_singlethread_workqueue(NOZOMI_NAME )) ) {
++ ERR("Could not create workqueue?");
++ BUG_ON(!dc->tty_flip_wq);
++ return -ENOMEM;
++ }
++ INIT_WORK( &dc->tty_flip_wq_struct, tty_flip_queue_function, (void*) dc);
++#endif
++
++ spin_lock_init(&dc->spin_mutex);
++
++ make_proc_dirs();
++
++ ntty_tty_init(dc);
++#if 0
++ if (!nozomi_read_config_table(dc)) {
++ ERR("Could not read config table (pass 1)");
++ return -ENODEV;
++ }
++ if (!nozomi_read_config_table(dc)) {
++ ERR("Could not read config table (pass 2)");
++ return -ENODEV;
++ }
++#endif
++ send_reset_token(dc);
++
++ /* Enable RESET interrupt. */
++ SET_IER( RESET, 0xFFFF );
++
++ return 0;
++
++err_disable_regions:
++ pci_release_regions(pdev);
++ iounmap((void *)dc->base_addr );
++ dc->base_addr = 0;
++
++err_disable_device:
++ pci_disable_device(pdev);
++ if(my_dev) {
++ kfree( my_dev );
++ }
++ return ret;
++}
++
++static void tty_do_close(dc_t *dc, port_t *port) {
++
++ down(&port->tty_sem);
++
++ if ( !port->tty_open_count ) {
++ goto exit;
++ }
++
++ dc->open_ttys--;
++ port->tty_open_count--;
++#ifdef KERNEL_2_4
++ MOD_DEC_USE_COUNT;
++#endif
++
++ if ( port->tty_open_count == 0) {
++ D1("close: %d", port->token_dl );
++ SET_IER( 0, port->token_dl );
++ }
++
++exit:
++ up(&port->tty_sem);
++}
++
++static void __exit tty_exit(void) {
++ int i;
++ dc_t *dc = my_dev;
++
++ D1( " ");
++
++#ifdef KERNEL_2_6
++ for (i = 0; i < NTTY_TTY_MINORS; ++i)
++ tty_unregister_device(&dc->tty_driver, i);
++#endif
++
++ tty_unregister_driver(&dc->tty_driver);
++
++ for (i = 0; i < NTTY_TTY_MINORS; i++) {
++ while (dc->port[i].tty_open_count) {
++ tty_do_close(dc, &dc->port[i]);
++ }
++
++ dc->port[i].tty = NULL;
++ }
++}
++
++/* Deallocate memory for one device */
++static void __devexit nozomi_card_exit(struct pci_dev *pdev) {
++ int i;
++ dc_t *dc = get_dc_by_pdev(pdev);
++
++ /* Disable all interrupts */
++ SET_IER( 0, 0xFFFF);
++
++ /* Setup dc->reg addresses to we can use defines here */
++ nozomi_setup_private_data(dc);
++ send_reset_token(dc);
++
++ D1( "pci_release_regions");
++ pci_release_regions(pdev);
++
++ if(dc->base_addr)
++ iounmap((void *)dc->base_addr);
++
++ D1( "pci_disable_device");
++ pci_disable_device(pdev);
++
++ free_irq( pdev->irq, pdev );
++
++ for (i=PORT_MDM; i< MAX_PORT;i++) {
++ kfree ( dc->port[i].fifo_ul );
++ }
++
++ kfree( dc->send_buf );
++
++ tty_exit();
++
++ remove_proc_dirs();
++
++#ifdef KERNEL_2_6
++ destroy_workqueue(dc->tty_flip_wq);
++#endif
++
++ if (my_dev) {
++ kfree( my_dev );
++ }
++
++ cards_found--;
++ cards_initialized--;
++}
++
++static void set_rts(int index, int rts) {
++ dc_t *dc = get_dc_by_index(index);
++
++ dc->port[index].ctrl_ul.RTS = rts;
++ dc->port[index].update_flow_control = 1;
++ enable_transmit_ul(PORT_CTRL, dc);
++}
++
++static void set_dtr(int index, int dtr) {
++ dc_t *dc = get_dc_by_index(index);
++
++ D1("SETTING DTR index: %d, dtr: %d", index, dtr);
++
++ dc->port[index].ctrl_ul.DTR = dtr;
++ dc->port[index].update_flow_control = 1;
++ enable_transmit_ul(PORT_CTRL, dc);
++}
++
++
++/* ---------------------------------------------------------------------------------------------------
++ TTY code
++ ---------------------------------------------------------------------------------------------------*/
++
++
++/* Called when the userspace process opens the tty, /dev/noz*. */
++static int ntty_open(struct tty_struct *tty, struct file *file) {
++
++ s32 index = get_index(tty);
++ port_t *port = get_port_by_tty(tty);
++ dc_t *dc = get_dc_by_tty(tty);
++
++ CARD_CHECK(-ENODEV);
++
++ down(&port->tty_sem);
++
++ tty->low_latency = 1;
++ tty->driver_data = port;
++ port->tty = tty;
++ port->tty_index = index;
++
++ port->tty_open_count++;
++ dc->open_ttys++;
++
++#ifdef KERNEL_2_4
++ MOD_INC_USE_COUNT;
++#endif
++
++ /* Enable interrupt downlink for channel */
++ if ( port->tty_open_count == 1) {
++ port->rx_data = port->tx_data = 0;
++ D1("open: %d", port->token_dl );
++ SET_IER( port->token_dl, port->token_dl );
++ }
++
++ up(&port->tty_sem);
++
++ return 0;
++}
++
++/* Called when the userspace process close the tty, /dev/noz*. */
++static void ntty_close(struct tty_struct *tty, struct file *file) {
++ dc_t *dc;
++ CARD_CHECK();
++ dc = get_dc_by_tty(tty);
++ tty_do_close(dc, (port_t *) tty->driver_data);
++}
++
++/* called when the userspace process writes to the tty (/dev/noz*). */
++/* Data is inserted into a fifo, which is then read and transfered to the modem. */
++#ifdef KERNEL_2_6
++static int ntty_write(struct tty_struct *tty, const unsigned char *buffer, int count) {
++#else
++static s32 ntty_write(struct tty_struct *tty, s32 from_user, const u8 *buffer, s32 count) {
++#endif
++ int rval = -EINVAL;
++ dc_t *dc = get_dc_by_tty(tty);
++ port_t *port = (port_t *) tty->driver_data;
++
++ CARD_CHECK(rval);
++
++ /* D1( "WRITEx: %d, index = %d", count, index); */
++
++ if (! port) {
++ return -ENODEV;
++ }
++
++ down(&port->tty_sem);
++
++ if (! port->tty_open_count) {
++ D1( " ");
++ goto exit;
++ }
++
++#ifdef KERNEL_2_4
++ if (from_user) {
++ rval = __kfifo_put_user(port->fifo_ul, (unsigned char *) buffer, count);
++ } else {
++ rval = __kfifo_put(port->fifo_ul, (unsigned char *) buffer, count);
++ }
++#else
++ rval = __kfifo_put(port->fifo_ul, (unsigned char *) buffer, count);
++#endif
++
++ /* notify card */
++ if ( dc == NULL) {
++ D1( "No device context?");
++ goto exit;
++ }
++
++ // CTS is only valid on the modem channel
++ if ( port == &(dc->port[PORT_MDM]) ) {
++ if ( port->ctrl_dl.CTS ) {
++ D4( "Enable interrupt");
++ enable_transmit_ul(port->tty_index, dc );
++ } else {
++ ERR("CTS not active on modem port?");
++ }
++ } else {
++ enable_transmit_ul(port->tty_index, dc );
++ }
++
++exit:
++ up(&port->tty_sem);
++ return rval;
++}
++
++/* Calculate how much is left in device */
++/* This method is called by the upper tty layer. */
++/* #according to sources N_TTY.c it expects a value >= 0 and does not check for negative values. */
++static int ntty_write_room(struct tty_struct *tty) {
++ port_t *port = (port_t *) tty->driver_data;
++ int room = 0;
++/* u32 flags = 0; */
++/* dc_t *dc = get_dc_by_tty(tty); */
++
++ CARD_CHECK(-ENODEV);
++
++ if (! port) {
++ return 0;
++ }
++
++ down(&port->tty_sem);
++
++ if (! port->tty_open_count) {
++ goto exit;
++ }
++
++ room = port->fifo_ul->size - __kfifo_len(port->fifo_ul);
++
++exit:
++ up(&port->tty_sem);
++ return room;
++}
++
++/* Sets termios flags, called by the tty layer. */
++static void ntty_set_termios(struct tty_struct *tty, struct termios *old_termios) {
++ unsigned int cflag;
++
++ CARD_CHECK();
++
++ cflag = tty->termios->c_cflag;
++
++ if (old_termios) {
++ if ((cflag == old_termios->c_cflag) &&
++ (RELEVANT_IFLAG(tty->termios->c_iflag) == RELEVANT_IFLAG(old_termios->c_iflag))) {
++ D1( " - nothing to change...");
++ goto exit_termios;
++ }
++ }
++
++ /* get the byte size */
++ switch (cflag & CSIZE) {
++ case CS5:
++ D1( " - data bits = 5");
++ break;
++ case CS6:
++ D1( " - data bits = 6");
++ break;
++ case CS7:
++ D1( " - data bits = 7");
++ break;
++ default:
++ case CS8:
++ D1( " - data bits = 8");
++ break;
++ }
++
++ /* determine the parity */
++ if (cflag & PARENB) {
++ if (cflag & PARODD) {
++ D1( " - parity = odd");
++ } else {
++ D1( " - parity = even");
++ }
++ } else {
++ D1( " - parity = none");
++ }
++
++ /* figure out the stop bits requested */
++ if (cflag & CSTOPB) {
++ D1( " - stop bits = 2");
++ } else {
++ D1( " - stop bits = 1");
++ }
++
++ /* figure out the hardware flow control settings */
++ if (cflag & CRTSCTS) {
++ D1( " - RTS/CTS is enabled");
++ } else {
++ D1( " - RTS/CTS is disabled");
++ }
++
++ /* determine software flow control */
++ /* if we are implementing XON/XOFF, set the start and
++ * stop character in the device */
++ if (I_IXOFF(tty) || I_IXON(tty)) {
++#ifdef NOZOMI_DEBUG
++ unsigned char stop_char = STOP_CHAR(tty);
++ unsigned char start_char = START_CHAR(tty);
++#endif
++ /* if we are implementing INBOUND XON/XOFF */
++ if (I_IXOFF(tty)) {
++ D1( " - INBOUND XON/XOFF is enabled, "
++ "XON = %2x, XOFF = %2x", start_char, stop_char);
++ } else {
++ D1( " - INBOUND XON/XOFF is disabled");
++ }
++
++ /* if we are implementing OUTBOUND XON/XOFF */
++ if (I_IXON(tty)) {
++ D1( " - OUTBOUND XON/XOFF is enabled, "
++ "XON = %2x, XOFF = %2x", start_char, stop_char);
++ } else {
++ D1( " - OUTBOUND XON/XOFF is disabled");
++ }
++ }
++
++ exit_termios:
++ return;
++}
++
++/* Gets io control parameters */
++static int ntty_tiocmget(struct tty_struct *tty, struct file *file) {
++ port_t *port = (port_t *) tty->driver_data;
++ ctrl_dl_t *ctrl_dl = &port->ctrl_dl;
++ ctrl_ul_t *ctrl_ul = &port->ctrl_ul;
++
++ return 0
++ | (ctrl_ul->RTS ? TIOCM_RTS : 0)
++ | (ctrl_ul->DTR ? TIOCM_DTR : 0)
++ | (ctrl_dl->DCD ? TIOCM_CAR : 0)
++ | (ctrl_dl->RI ? TIOCM_RNG : 0)
++ | (ctrl_dl->DSR ? TIOCM_DSR : 0)
++ | (ctrl_dl->CTS ? TIOCM_CTS : 0);
++}
++
++/* Sets io controls parameters */
++static int ntty_tiocmset(struct tty_struct *tty, struct file *file, u32 arg) {
++ port_t *port = (port_t *) tty->driver_data;
++
++ set_rts(port->tty_index, (arg & TIOCM_RTS) ? 1 : 0);
++ set_dtr(port->tty_index, (arg & TIOCM_DTR) ? 1 : 0);
++
++ return 0;
++}
++
++static int ntty_ioctl_tiocmiwait(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg) {
++ port_t *port = (port_t *) tty->driver_data;
++
++ if (cmd == TIOCMIWAIT) {
++ DECLARE_WAITQUEUE(wait, current);
++ struct async_icount cnow;
++ struct async_icount cprev;
++
++ cprev = port->tty_icount;
++ while (1) {
++ add_wait_queue(&port->tty_wait, &wait);
++ set_current_state(TASK_INTERRUPTIBLE);
++ schedule();
++ remove_wait_queue(&port->tty_wait, &wait);
++
++ /* see if a signal woke us up */
++ if (signal_pending(current))
++ return -ERESTARTSYS;
++
++ cnow = port->tty_icount;
++ if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr &&
++ cnow.dcd == cprev.dcd && cnow.cts == cprev.cts)
++ return -EIO; /* no change => error */
++ if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) ||
++ ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) ||
++ ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) ||
++ ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts)) ) {
++ return 0;
++ }
++ cprev = cnow;
++ }
++
++ }
++ return -ENOIOCTLCMD;
++}
++
++static int ntty_ioctl_tiocgicount(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg) {
++ port_t *port = (port_t *) tty->driver_data;
++
++ if (cmd == TIOCGICOUNT) {
++ struct async_icount cnow = port->tty_icount;
++ struct serial_icounter_struct icount;
++
++ icount.cts = cnow.cts;
++ icount.dsr = cnow.dsr;
++ icount.rng = cnow.rng;
++ icount.dcd = cnow.dcd;
++ icount.rx = cnow.rx;
++ icount.tx = cnow.tx;
++ icount.frame = cnow.frame;
++ icount.overrun = cnow.overrun;
++ icount.parity = cnow.parity;
++ icount.brk = cnow.brk;
++ icount.buf_overrun = cnow.buf_overrun;
++
++ if (copy_to_user((void *)arg, &icount, sizeof(icount)))
++ return -EFAULT;
++ return 0;
++ }
++ return -ENOIOCTLCMD;
++}
++
++static int ntty_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg) {
++ port_t *port = (port_t *) tty->driver_data;
++ int mask;
++ int rval = -ENOIOCTLCMD;
++
++ CARD_CHECK(rval);
++
++ D1("******** IOCTL, cmd: %d", cmd);
++
++
++ switch (cmd) {
++ case TCGETS:
++ D1( "IOCTL TCGETS ...");
++ rval = -ENOIOCTLCMD;
++ break;
++ case TCSETS:
++ D1( "IOCTL TCSETS ...");
++ rval = -ENOIOCTLCMD;
++ break;
++ case TIOCMIWAIT:
++ rval = ntty_ioctl_tiocmiwait(tty, file, cmd, arg);
++ break;
++ case TIOCGICOUNT:
++ rval = ntty_ioctl_tiocgicount(tty, file, cmd, arg);
++ break;
++ case TIOCMGET:
++ rval = ntty_tiocmget(tty, file);
++ break;
++ case TIOCMSET:
++ rval = ntty_tiocmset(tty, file, arg);
++ break;
++ case TIOCMBIC:
++ if (get_user(mask, (unsigned long *) arg))
++ return -EFAULT;
++
++ if (mask & TIOCM_RTS)
++ set_rts(port->tty_index, 0);
++ if (mask & TIOCM_DTR)
++ set_dtr(port->tty_index, 0);
++ rval = 0;
++ break;
++ case TIOCMBIS:
++ if (get_user(mask, (unsigned long *) arg))
++ return -EFAULT;
++
++ if (mask & TIOCM_RTS)
++ set_rts(port->tty_index, 1);
++ if (mask & TIOCM_DTR)
++ set_dtr(port->tty_index, 1);
++ rval = 0;
++ break;
++ case TCFLSH:
++ D1( "IOCTL TCFLSH ...");
++ rval = -ENOIOCTLCMD;
++ break;
++
++ default:
++ D1( "ERR: 0x%08X, %d", cmd, cmd);
++ break;
++ };
++
++ return rval;
++}
++
++/* Called by the upper tty layer when tty buffers are ready */
++/* to receive data again after a call to throttle. */
++static void ntty_unthrottle(struct tty_struct *tty) {
++ port_t *port = (port_t *) tty->driver_data;
++ dc_t *dc = get_dc_by_tty(tty);
++ u32 flags;
++
++ CARD_CHECK();
++
++ D1( "UNTHROTTLE");
++ spin_lock_irqsave(&dc->spin_mutex, flags);
++ enable_transmit_dl(port->tty_index, dc);
++ set_rts(port->tty_index, 1);
++
++ spin_unlock_irqrestore(&dc->spin_mutex, flags);
++}
++
++/* Called by the upper tty layer when the tty buffers are almost full. */
++/* The driver should stop send more data. */
++static void ntty_throttle(struct tty_struct *tty) {
++ port_t *port = (port_t *) tty->driver_data;
++ dc_t *dc = get_dc_by_tty(tty);
++ u32 flags;
++
++ CARD_CHECK();
++
++ D1( "THROTTLE");
++ spin_lock_irqsave(&dc->spin_mutex, flags);
++ set_rts(port->tty_index, 0);
++ spin_unlock_irqrestore(&dc->spin_mutex, flags);
++}
++
++static void ntty_put_char(struct tty_struct *tty, unsigned char c) {
++ CARD_CHECK();
++ D2("PUT CHAR Function: %c", c);
++}
++
++/* Returns number of chars in buffer, called by tty layer */
++static s32 ntty_chars_in_buffer(struct tty_struct *tty) {
++ port_t *port = (port_t *) tty->driver_data;
++ s32 rval;
++
++ CARD_CHECK(-ENODEV);
++
++ if (! port) {
++ rval = -ENODEV;
++ goto exit_in_buffer;
++ }
++
++ if (! port->tty_open_count) {
++ ERR("No tty open?");
++ rval = -ENODEV;
++ goto exit_in_buffer;
++ }
++
++ rval = __kfifo_len(port->fifo_ul);
++
++ exit_in_buffer:
++ return rval;
++}
++
++/* Initializes the tty */
++static int ntty_tty_init(dc_t *dc) {
++ struct tty_driver *td = &dc->tty_driver;
++ int rval;
++ int i;
++
++ memset(td, 0, sizeof(struct tty_driver));
++
++ td->magic = TTY_DRIVER_MAGIC;
++ td->driver_name = NOZOMI_NAME_TTY;
++ td->name = "noz";
++ td->major = NTTY_TTY_MAJOR,
++ td->type = TTY_DRIVER_TYPE_SERIAL,
++ td->subtype = SERIAL_TYPE_NORMAL,
++ td->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_NO_DEVFS,
++ td->init_termios = tty_std_termios;
++ td->init_termios.c_cflag = B115200 | CS8 | CREAD | HUPCL | CLOCAL;
++
++ td->num = MAX_PORT;
++ td->name_base = 0;
++ td->minor_start = 0;
++
++#ifdef KERNEL_2_4
++ td->table = dc->tty_table;
++ td->refcount = &dc->tty_refcount;
++#endif
++
++ td->termios = dc->tty_termios;
++ td->termios_locked = dc->tty_termios_locked;
++
++ td->ioctl = ntty_ioctl;
++ td->open = ntty_open;
++ td->close = ntty_close;
++ td->write = ntty_write;
++ td->write_room = ntty_write_room;
++ td->unthrottle = ntty_unthrottle;
++ td->throttle = ntty_throttle;
++ td->set_termios = ntty_set_termios;
++ td->chars_in_buffer = ntty_chars_in_buffer;
++ td->put_char = ntty_put_char;
++
++ rval = tty_register_driver(td);
++
++ if (rval) {
++ printk(KERN_ERR "failed to register ntty tty driver");
++ D1( "failed to register ntty tty driver");
++ return rval;
++ }
++
++ for (i = 0; i < NTTY_TTY_MINORS; i++) {
++ init_MUTEX(&dc->port[i].tty_sem);
++ dc->port[i].tty_open_count = 0;
++ dc->port[i].tty = NULL;
++
++#ifdef KERNEL_2_6
++ tty_register_device(td, i, NULL);
++#endif
++ }
++
++ printk(KERN_INFO DRIVER_DESC " " NOZOMI_NAME_TTY);
++ D1( " ");
++ return rval;
++}
++
++/* Module initialization */
++static struct pci_driver nozomi_driver = {
++ .name = NOZOMI_NAME,
++ .id_table = nozomi_pci_tbl,
++ .probe = nozomi_card_init,
++ .remove = __devexit_p(nozomi_card_exit),
++};
++
++static int __init nozomi_init(void) {
++ int rval = 0;
++
++ rval = pci_module_init(&nozomi_driver);
++ printk(KERN_INFO "Initializing %s\n", VERSION_STRING);
++ return rval;
++}
++
++static void nozomi_exit(void) {
++ printk(KERN_INFO "Unloading %s", DRIVER_DESC);
++
++ pci_unregister_driver(&nozomi_driver);
++}
++
++module_init(nozomi_init);
++module_exit(nozomi_exit);
++
++#ifdef NOZOMI_DEBUG
++ MODULE_PARM(nzdebug, "i");
++#endif
++
++MODULE_LICENSE("Dual BSD/GPL");
++MODULE_DESCRIPTION( DRIVER_DESC );