[22/22] Cyclades PC300 driver: omnibus patch from merge up to final version (patches 01 through 20 inclusive)

Andrea Shepard
2012-01-30T03:02:39Z

This is an omnibus patch including patches 01 through 20 of this series; one
may readily verify that it passes checkpatch.pl style conformance and that it
builds cleanly. The resulting driver is known to function reliably and
achieve near theoretical maximum performance with a full T1 circuit and a
single-port PC-300 T1/E1 card on a Sun Ultra 10.

Signed-off-by: Andrea Shepard <andrea@persephoneslair.org>

diff --git a/drivers/net/wan/Kconfig b/drivers/net/wan/Kconfig
index 423eb26..36a439a 100644
--- a/drivers/net/wan/Kconfig
+++ b/drivers/net/wan/Kconfig
@@ -205,10 +205,8 @@ config WANXL_BUILD_FIRMWARE

config PC300
tristate "Cyclades-PC300 support (RS-232/V.35, X.21, T1/E1 boards)"
- depends on HDLC && PCI && BROKEN
+ depends on HDLC && PCI
---help---
- This driver is broken because of struct tty_driver change.
-
Driver for the Cyclades-PC300 synchronous communication boards.

These boards provide synchronous serial interfaces to your
@@ -217,6 +215,10 @@ config PC300
option later and read the file README.mlppp provided by PC300
package.

+ Due to changes in certain ioctls necessary for portability, this
+ version requires a new version of pc300utils, which may be found
+ at: http://charon.persephoneslair.org/~andrea/software/pc300utils/
+
To compile this as a module, choose M here: the module
will be called pc300.

@@ -228,11 +230,8 @@ config PC300_MLPPP
help
Multilink PPP over the PC300 synchronous communication boards.

-comment "Cyclades-PC300 MLPPP support is disabled."
- depends on HDLC && PC300 && (PPP=n || !PPP_MULTILINK || PPP_SYNC_TTY=n || !HDLC_PPP)
-
comment "Refer to the file README.mlppp, provided by PC300 package."
- depends on HDLC && PC300 && (PPP=n || !PPP_MULTILINK || PPP_SYNC_TTY=n || !HDLC_PPP)
+ depends on HDLC && PC300 && (PPP=n || !PPP_MULTILINK || PPP_SYNC_TTY=n || !HDLC_PPP) && PC300_MLPPP

config PC300TOO
tristate "Cyclades PC300 RSV/X21 alternative support"
diff --git a/drivers/net/wan/hd64572.h b/drivers/net/wan/hd64572.h
index 96567c2..2626fea 100644
--- a/drivers/net/wan/hd64572.h
+++ b/drivers/net/wan/hd64572.h
@@ -4,7 +4,7 @@
*
* Author: Ivan Passos <ivan@cyclades.com>
*
- * Copyright: (c) 2000-2001 Cyclades Corp.
+ * Copyright: (c) 2000-2004 Cyclades Corp.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
@@ -172,11 +172,11 @@

/* Block Descriptor Structure */
typedef struct {
- unsigned long next; /* pointer to next block descriptor */
- unsigned long ptbuf; /* buffer pointer */
- unsigned short len; /* data length */
- unsigned char status; /* status */
- unsigned char filler[5]; /* alignment filler (16 bytes) */
+ u32 next; /* pointer to next block descriptor */
+ u32 ptbuf; /* buffer pointer */
+ u16 len; /* data length */
+ u8 status; /* status */
+ u8 filler[5]; /* alignment filler (16 bytes) */
} pcsca_bd_t;

/* Block Descriptor Structure */
diff --git a/drivers/net/wan/pc300-falc-lh.h b/drivers/net/wan/pc300-falc-lh.h
index 01ed23c..514000a 100644
--- a/drivers/net/wan/pc300-falc-lh.h
+++ b/drivers/net/wan/pc300-falc-lh.h
@@ -3,7 +3,7 @@
*
* Author: Ivan Passos <ivan@cyclades.com>
*
- * Copyright: (c) 2000-2001 Cyclades Corp.
+ * Copyright: (c) 2000-2004 Cyclades Corp.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
diff --git a/drivers/net/wan/pc300.h b/drivers/net/wan/pc300.h
index 2e4f84f..b0f3601 100644
--- a/drivers/net/wan/pc300.h
+++ b/drivers/net/wan/pc300.h
@@ -3,7 +3,7 @@
*
* Author: Ivan Passos <ivan@cyclades.com>
*
- * Copyright: (c) 1999-2002 Cyclades Corp.
+ * Copyright: (c) 1999-2004 Cyclades Corp.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
@@ -105,9 +105,16 @@

#define PC300_PROTO_MLPPP 1

+
+#define PC300_DEVNAME "hdlc" /* Dev. name base (for hdlc0, hdlc1, etc.) */
+#define PC300_MAXINDEX 100 /* Max dev. name index (the '0' in hdlc0) */
+
+#define PC300_MAXCARDS 4 /* Max number of cards per system */
#define PC300_MAXCHAN 2 /* Number of channels per card */

+#define PC300_PLX_WIN 0x80 /* PLX control window size (128b) */
#define PC300_RAMSIZE 0x40000 /* RAM window size (256Kb) */
+#define PC300_SCASIZE 0x400 /* SCA window size (1Kb) */
#define PC300_FALCSIZE 0x400 /* FALC window size (1Kb) */

#define PC300_OSC_CLOCK 24576000
@@ -143,13 +150,28 @@
* Memory access functions/macros *
* (required to support Alpha systems) *
***************************************/
-#define cpc_writeb(port,val) {writeb((u8)(val),(port)); mb();}
-#define cpc_writew(port,val) {writew((ushort)(val),(port)); mb();}
-#define cpc_writel(port,val) {writel((u32)(val),(port)); mb();}
+#ifdef __KERNEL__
+#define cpc_writeb(port, val) {writeb((u8)(val), \
+ (void __iomem *)(port)); mb(); }
+#define cpc_writew(port, val) {writew((u16)(val), \
+ (void __iomem *)(port)); mb(); }
+#define cpc_writel(port, val) {writel((u32)(val), \
+ (void __iomem *)(port)); mb(); }
+
+#define cpc_readb(port) readb((void __iomem *)(port))
+#define cpc_readw(port) readw((void __iomem *)(port))
+#define cpc_readl(port) readl((void __iomem *)(port))

-#define cpc_readb(port) readb(port)
-#define cpc_readw(port) readw(port)
-#define cpc_readl(port) readl(port)
+#else /* __KERNEL__ */
+#define cpc_writeb(port, val) (*((u8 *)(port)) = (u8)(val))
+#define cpc_writew(port, val) (*((u16 *)(port)) = (u16)(val))
+#define cpc_writel(port, val) (*((u32 *)(port)) = (u32)(val))
+
+#define cpc_readb(port) (*((u8 *)(port)))
+#define cpc_readw(port) (*((u16 *)(port)))
+#define cpc_readl(port) (*((u32 *)(port)))
+
+#endif /* __KERNEL__ */

/****** Data Structures *****************************************************/

@@ -267,11 +289,47 @@ typedef struct rsv_x21_status {
u8 dtr;
} rsv_x21_status_t;

+struct pc300_net_stats {
+ u64 rx_packets;
+ u64 tx_packets;
+ u64 rx_bytes;
+ u64 tx_bytes;
+ u64 rx_errors;
+ u64 tx_errors;
+ u64 rx_dropped;
+ u64 tx_dropped;
+ u64 multicast;
+ u64 collisions;
+
+ /* detailed rx_errors: */
+ u64 rx_length_errors;
+ u64 rx_over_errors;
+ u64 rx_crc_errors;
+ u64 rx_frame_errors;
+ u64 rx_fifo_errors;
+ u64 rx_missed_errors;
+
+ /* detailed tx_errors */
+ u64 tx_aborted_errors;
+ u64 tx_carrier_errors;
+ u64 tx_fifo_errors;
+ u64 tx_heartbeat_errors;
+ u64 tx_window_errors;
+
+ u64 rx_compressed;
+ u64 tx_compressed;
+};
+
typedef struct pc300stats {
int hw_type;
u32 line_on;
u32 line_off;
- struct net_device_stats gen_stats;
+ /* Use this instead of net_device_stats, since passing
+ * net_device_stats breaks 32-bit user processes on 64-bit kernels,
+ * and rtnetlink is unreasonably complicated just to get
+ * some statistics.
+ */
+ struct pc300_net_stats net_stats;
falc_t te_stats;
} pc300stats_t;

@@ -291,16 +349,31 @@ typedef struct pc300patterntst {
u16 num_errors;
} pc300patterntst_t;

+#ifdef __KERNEL__
+
typedef struct pc300dev {
struct pc300ch *chan;
u8 trace_on;
u32 line_on; /* DCD(X.21, RSV) / sync(TE) change counters */
u32 line_off;
+#ifdef __KERNEL__
char name[16];
- struct net_device *dev;
+ hdlc_device *hdlc;
+ struct net_device *netdev;
+
+ void *private;
+ struct sk_buff *tx_skb;
+
+ enum {
+ CPC_DMA_FULL,
+ CPC_DMA_ERROR,
+ TRANSMISSION_ACTIVE,
+ CHANNEL_CLOSED
+ } reason_stopped;
#ifdef CONFIG_PC300_MLPPP
void *cpc_tty; /* information to PC300 TTY driver */
#endif
+#endif /* __KERNEL__ */
}pc300dev_t;

typedef struct pc300hw {
@@ -314,29 +387,60 @@ typedef struct pc300hw {
u16 cpld_reg2; /* CPLD reg 2 (TE only) */
u16 gpioc_reg; /* PLX GPIOC reg */
u16 intctl_reg; /* PLX Int Ctrl/Status reg */
- u32 iophys; /* PLX registers I/O base */
+ phys_addr_t iophys; /* PLX registers I/O base */
u32 iosize; /* PLX registers I/O size */
- u32 plxphys; /* PLX registers MMIO base (physical) */
- void __iomem * plxbase; /* PLX registers MMIO base (virtual) */
+ phys_addr_t plxphys; /* PLX registers MMIO base (physical) */
+ void __iomem *plxbase; /* PLX registers MMIO base (virtual) */
u32 plxsize; /* PLX registers MMIO size */
- u32 scaphys; /* SCA registers MMIO base (physical) */
- void __iomem * scabase; /* SCA registers MMIO base (virtual) */
+ phys_addr_t scaphys; /* SCA registers MMIO base (physical) */
+ void __iomem *scabase; /* SCA registers MMIO base (virtual) */
u32 scasize; /* SCA registers MMIO size */
- u32 ramphys; /* On-board RAM MMIO base (physical) */
- void __iomem * rambase; /* On-board RAM MMIO base (virtual) */
+ phys_addr_t ramphys; /* On-board RAM MMIO base (physical) */
+ void __iomem *rambase; /* On-board RAM MMIO base (virtual) */
u32 alloc_ramsize; /* RAM MMIO size allocated by the PCI bridge */
u32 ramsize; /* On-board RAM MMIO size */
- u32 falcphys; /* FALC registers MMIO base (physical) */
- void __iomem * falcbase;/* FALC registers MMIO base (virtual) */
+ phys_addr_t falcphys; /* FALC registers MMIO base (physical) */
+ void __iomem *falcbase;/* FALC registers MMIO base (virtual) */
u32 falcsize; /* FALC registers MMIO size */
} pc300hw_t;

+#endif /* __KERNEL__ */
+
+/*
+ * It's problematic to pass the addresses out to userland, since their sizes
+ * are so platform-dependent. The userland pc300cfg program might be 32-bit
+ * even on a 64-bit kernel, and in any case it can't see phys_addr_t. Since
+ * this information isn't even very interesting and in any case is visible in
+ * from the printk() calls when we init, just leave it out when responding to
+ * SIOCGPC300CONF.
+ */
+
+struct pc300hw_user {
+ int type; /* RSV, X21, etc. */
+ int bus; /* Bus (PCI, PMC, etc.) */
+ int nchan; /* number of channels */
+ int irq; /* interrupt request level */
+ u32 clock; /* Board clock */
+ u8 cpld_id; /* CPLD ID (TE only) */
+ u16 cpld_reg1; /* CPLD reg 1 (TE only) */
+ u16 cpld_reg2; /* CPLD reg 2 (TE only) */
+ u16 gpioc_reg; /* PLX GPIOC reg */
+ u16 intctl_reg; /* PLX Int Ctrl/Status reg */
+ u32 iosize; /* PLX registers I/O size */
+ u32 plxsize; /* PLX registers MMIO size */
+ u32 scasize; /* SCA registers MMIO size */
+ u32 alloc_ramsize; /* RAM MMIO size allocated by the PCI bridge */
+ u32 ramsize; /* On-board RAM MMIO size */
+ u32 falcsize; /* FALC registers MMIO size */
+};
+
typedef struct pc300chconf {
sync_serial_settings phys_settings; /* Clock type/rate (in bps),
loopback mode */
raw_hdlc_proto proto_settings; /* Encoding, parity (CRC) */
u32 media; /* HW media (RS232, V.35, etc.) */
u32 proto; /* Protocol (PPP, X.25, etc.) */
+ u8 monitor; /* Monitor mode (0 = off, !0 = on) */

/* TE-specific parameters */
u8 lcode; /* Line Code (AMI, B8ZS, etc.) */
@@ -346,6 +450,8 @@ typedef struct pc300chconf {
u32 tslot_bitmap; /* bit[i]=1 => timeslot _i_ is active */
} pc300chconf_t;

+#ifdef __KERNEL__
+
typedef struct pc300ch {
struct pc300 *card;
int channel;
@@ -365,8 +471,10 @@ typedef struct pc300 {
spinlock_t card_lock;
} pc300_t;

+#endif /* __KERNEL__ */
+
typedef struct pc300conf {
- pc300hw_t hw;
+ struct pc300hw_user hw;
pc300chconf_t conf;
} pc300conf_t;

@@ -430,7 +538,19 @@ enum pc300_loopback_cmds {
#define PC300_TX_QUEUE_LEN 100
#define PC300_DEF_MTU 1600

-/* Function Prototypes */
-int cpc_open(struct net_device *dev);
+#ifdef __KERNEL__
+
+int cpc_open(struct net_device *);
+
+#ifdef CONFIG_PC300_MLPPP
+void cpc_tty_init(pc300dev_t *);
+void cpc_tty_unregister_service(pc300dev_t *);
+void cpc_tty_receive(pc300dev_t *);
+void cpc_tty_trigger_poll(pc300dev_t *);
+void cpc_tty_reset_var(void);
+#endif /* CONFIG_PC300_MLPP */
+
+#endif /* __KERNEL__ */

#endif /* _PC300_H */
+
diff --git a/drivers/net/wan/pc300_drv.c b/drivers/net/wan/pc300_drv.c
index 1eeedd6..bcdf53a 100644
--- a/drivers/net/wan/pc300_drv.c
+++ b/drivers/net/wan/pc300_drv.c
@@ -1,6 +1,6 @@
#define USE_PCI_CLOCK
static const char rcsid[] =
-"Revision: 3.4.5 Date: 2002/03/07 ";
+"Revision: 4.1.0 Date: 2004/02/20 ";

/*
* pc300.c Cyclades-PC300(tm) Driver.
@@ -8,7 +8,7 @@ static const char rcsid[] =
* Author: Ivan Passos <ivan@cyclades.com>
* Maintainer: PC300 Maintainer <pc300@cyclades.com>
*
- * Copyright: (c) 1999-2003 Cyclades Corp.
+ * Copyright: (c) 1999-2004 Cyclades Corp.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
@@ -16,6 +16,13 @@ static const char rcsid[] =
* 2 of the License, or (at your option) any later version.
*
* Using tabstop = 4.
+ *
+ * Cyclades version 4.1.0 merged in, with new portability fixes,
+ * and ported to recent kernels by Andrea Shepard <andrea@persephoneslair.org>
+ *
+ * Due to changes in certain ioctls necessary for portability, this
+ * version requires a new version of pc300utils, which may be found
+ * at: http://charon.persephoneslair.org/~andrea/software/pc300utils/
*
* $Log: pc300_drv.c,v $
* Revision 3.23 2002/03/20 13:58:40 henrique
@@ -219,6 +226,7 @@ static const char rcsid[] =
#include <linux/mm.h>
#include <linux/ioport.h>
#include <linux/pci.h>
+#include <linux/interrupt.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/init.h>
@@ -238,21 +246,22 @@ static const char rcsid[] =

#include "pc300.h"

-#define CPC_LOCK(card,flags) \
- do { \
- spin_lock_irqsave(&card->card_lock, flags); \
- } while (0)
+#define CPC_LOCK(card, flags) \
+ { \
+ spin_lock_irqsave(&((card)->card_lock), (flags)); \
+ }

-#define CPC_UNLOCK(card,flags) \
- do { \
- spin_unlock_irqrestore(&card->card_lock, flags); \
- } while (0)
+#define CPC_UNLOCK(card, flags) \
+ { \
+ spin_unlock_irqrestore(&((card)->card_lock), (flags)); \
+ }

#undef PC300_DEBUG_PCI
#undef PC300_DEBUG_INTR
#undef PC300_DEBUG_TX
#undef PC300_DEBUG_RX
#undef PC300_DEBUG_OTHER
+#undef PC300_DEBUG_QUEUE

static DEFINE_PCI_DEVICE_TABLE(cpc_pci_dev_id) = {
/* PC300/RSV or PC300/X21, 2 chan */
@@ -279,53 +288,128 @@ MODULE_DEVICE_TABLE(pci, cpc_pci_dev_id);
#define cpc_max(a,b) (((a)>(b))?(a):(b))
#endif

-/* prototypes */
-static void tx_dma_buf_pt_init(pc300_t *, int);
-static void tx_dma_buf_init(pc300_t *, int);
-static void rx_dma_buf_pt_init(pc300_t *, int);
+/* DMA routines */
+static int dma_buf_read(pc300_t *, int, struct sk_buff *);
+static int dma_buf_write(pc300_t *, int, u8 *, int);
+static int dma_get_rx_frame_size(pc300_t *, int);
+static void rx_dma_buf_check(pc300_t *, int);
static void rx_dma_buf_init(pc300_t *, int);
+static void rx_dma_buf_pt_init(pc300_t *, int);
+static void rx_dma_start(pc300_t *, int);
+static void rx_dma_stop(pc300_t *, int);
+#ifdef PC300_DEBUG_OTHER
+static void tx1_dma_buf_check(pc300_t *, int);
+#endif
static void tx_dma_buf_check(pc300_t *, int);
-static void rx_dma_buf_check(pc300_t *, int);
-static irqreturn_t cpc_intr(int, void *);
+static void tx_dma_buf_init(pc300_t *, int);
+static void tx_dma_buf_pt_init(pc300_t *, int);
+static void tx_dma_stop(pc300_t *, int);
+
+/* FALC routines */
+static void falc_check_status(pc300_t *, int, unsigned char);
+static void falc_close_all_timeslots(pc300_t *, int);
+static void falc_close_timeslot(pc300_t *, int, int);
+static void falc_disable_comm(pc300_t *, int);
+static void falc_e1_intr(pc300_t *, int);
+static void falc_e1_loop_detection(pc300_t *, int, u8);
+static void falc_enable_comm(pc300_t *, int);
+static void falc_generate_loop_down_code(pc300_t *, int);
+static void falc_generate_loop_up_code(pc300_t *, int);
+static void falc_init_e1(pc300_t *, int);
+static void falc_init_hdlc(pc300_t *, int);
+static void falc_init_t1(pc300_t *, int);
+static void falc_init_timeslot(pc300_t *, int);
+static void falc_intr_enable(pc300_t *, int);
+static void falc_intr(pc300_t *);
+static void falc_issue_cmd(pc300_t *, int, u8);
+static void falc_local_loop(pc300_t *, int, int);
+static void falc_open_all_timeslots(pc300_t *, int);
+static void falc_open_timeslot(pc300_t *, int, int);
+static u16 falc_pattern_test_error(pc300_t *, int);
+static void falc_pattern_test(pc300_t *, int, unsigned int);
+static void falc_payload_loop(pc300_t *, int, int);
+static void falc_remote_loop(pc300_t *, int, int);
+static void falc_t1_intr(pc300_t *, int);
+static void falc_t1_loop_detection(pc300_t *, int, u8);
+static void falc_update_stats(pc300_t *, int);
+static void te_config(pc300_t *, int);
+static void turn_off_xld(pc300_t *, int);
+static void turn_off_xlu(pc300_t *, int);
+
+static void sca_intr(pc300_t *);
+static void sca_tx_intr(pc300dev_t *);
+
+static int ch_config(pc300dev_t *);
static int clock_rate_calc(u32, u32, int *);
static u32 detect_ram(pc300_t *);
static void plx_init(pc300_t *);
-static void cpc_trace(struct net_device *, struct sk_buff *, char);
-static int cpc_attach(struct net_device *, unsigned short, unsigned short);
-static int cpc_close(struct net_device *dev);
+static int rx_config(pc300dev_t *);
+static inline void show_version(void);
+static int tx_config(pc300dev_t *);

-#ifdef CONFIG_PC300_MLPPP
-void cpc_tty_init(pc300dev_t * dev);
-void cpc_tty_unregister_service(pc300dev_t * pc300dev);
-void cpc_tty_receive(pc300dev_t * pc300dev);
-void cpc_tty_trigger_poll(pc300dev_t * pc300dev);
-void cpc_tty_reset_var(void);
-#endif
+static int cpc_attach(struct net_device *, unsigned short, unsigned short);
+static int cpc_change_mtu(struct net_device *, int);
+static void __exit cpc_cleanup_module(void);
+static void cpc_closech(pc300dev_t *);
+static int cpc_close(struct net_device *);
+static void cpc_falc_status(pc300_t *, int);
+static struct net_device_stats *cpc_get_stats(struct net_device *);
+static void cpc_hw_info_to_user(const pc300hw_t *, struct pc300hw_user *);
+static void cpc_init_card(pc300_t *);
+static int __devinit cpc_init_one(struct pci_dev *,
+ const struct pci_device_id *);
+static int __init cpc_init(void);
+static irqreturn_t cpc_intr(int, void *);
+static int cpc_ioctl(struct net_device *, struct ifreq *, int);
+static void cpc_net_rx(struct net_device *);
+static void cpc_net_stats_to_user(const struct net_device_stats *,
+ struct pc300_net_stats *);
+static int cpc_opench(pc300dev_t *);
+static int cpc_queue_xmit(struct sk_buff *, struct net_device *);
+static void __devexit cpc_remove_one(struct pci_dev *);
+static void cpc_sca_status(pc300_t *, int);
+static void cpc_trace(struct net_device *, struct sk_buff *, char);
+static void cpc_tx_timeout(struct net_device *);
+
+static const struct net_device_ops pc300_netdev_ops = {
+ .ndo_change_mtu = cpc_change_mtu,
+ .ndo_do_ioctl = cpc_ioctl,
+ .ndo_get_stats = cpc_get_stats,
+ .ndo_open = cpc_open,
+ .ndo_set_mac_address = NULL,
+ .ndo_start_xmit = cpc_queue_xmit,
+ .ndo_stop = cpc_close,
+ .ndo_tx_timeout = cpc_tx_timeout,
+ .ndo_validate_addr = NULL
+};

/************************/
/*** DMA Routines ***/
/************************/
-static void tx_dma_buf_pt_init(pc300_t * card, int ch)
+static void tx_dma_buf_pt_init(pc300_t *card, int ch)
{
int i;
int ch_factor = ch * N_DMA_TX_BUF;
- volatile pcsca_bd_t __iomem *ptdescr = (card->hw.rambase
- + DMA_TX_BD_BASE + ch_factor * sizeof(pcsca_bd_t));
+ pcsca_bd_t __iomem *ptdescr =
+ (card->hw.rambase + DMA_TX_BD_BASE +
+ ch_factor * sizeof(pcsca_bd_t));

for (i = 0; i < N_DMA_TX_BUF; i++, ptdescr++) {
cpc_writel(&ptdescr->next, (u32)(DMA_TX_BD_BASE +
- (ch_factor + ((i + 1) & (N_DMA_TX_BUF - 1))) * sizeof(pcsca_bd_t)));
+ (ch_factor + ((i + 1) & (N_DMA_TX_BUF - 1))) *
+ sizeof(pcsca_bd_t)));
cpc_writel(&ptdescr->ptbuf,
- (u32)(DMA_TX_BASE + (ch_factor + i) * BD_DEF_LEN));
+ (u32)(DMA_TX_BASE +
+ (ch_factor + i) * BD_DEF_LEN));
}
}

-static void tx_dma_buf_init(pc300_t * card, int ch)
+static void tx_dma_buf_init(pc300_t *card, int ch)
{
int i;
int ch_factor = ch * N_DMA_TX_BUF;
- volatile pcsca_bd_t __iomem *ptdescr = (card->hw.rambase
- + DMA_TX_BD_BASE + ch_factor * sizeof(pcsca_bd_t));
+ pcsca_bd_t __iomem *ptdescr = (card->hw.rambase
+ + DMA_TX_BD_BASE + ch_factor * sizeof(pcsca_bd_t));

for (i = 0; i < N_DMA_TX_BUF; i++, ptdescr++) {
memset_io(ptdescr, 0, sizeof(pcsca_bd_t));
@@ -335,27 +419,30 @@ static void tx_dma_buf_init(pc300_t * card, int ch)
tx_dma_buf_pt_init(card, ch);
}

-static void rx_dma_buf_pt_init(pc300_t * card, int ch)
+static void rx_dma_buf_pt_init(pc300_t *card, int ch)
{
int i;
int ch_factor = ch * N_DMA_RX_BUF;
- volatile pcsca_bd_t __iomem *ptdescr = (card->hw.rambase
- + DMA_RX_BD_BASE + ch_factor * sizeof(pcsca_bd_t));
+ pcsca_bd_t __iomem *ptdescr = (card->hw.rambase
+ + DMA_RX_BD_BASE + ch_factor * sizeof(pcsca_bd_t));

for (i = 0; i < N_DMA_RX_BUF; i++, ptdescr++) {
cpc_writel(&ptdescr->next, (u32)(DMA_RX_BD_BASE +
- (ch_factor + ((i + 1) & (N_DMA_RX_BUF - 1))) * sizeof(pcsca_bd_t)));
+ (ch_factor + ((i + 1) & (N_DMA_RX_BUF - 1))) *
+ sizeof(pcsca_bd_t)));
cpc_writel(&ptdescr->ptbuf,
- (u32)(DMA_RX_BASE + (ch_factor + i) * BD_DEF_LEN));
+ (u32)(DMA_RX_BASE +
+ (ch_factor + i) * BD_DEF_LEN));
}
}

-static void rx_dma_buf_init(pc300_t * card, int ch)
+static void rx_dma_buf_init(pc300_t *card, int ch)
{
int i;
int ch_factor = ch * N_DMA_RX_BUF;
- volatile pcsca_bd_t __iomem *ptdescr = (card->hw.rambase
- + DMA_RX_BD_BASE + ch_factor * sizeof(pcsca_bd_t));
+ pcsca_bd_t __iomem *ptdescr =
+ (card->hw.rambase + DMA_RX_BD_BASE +
+ ch_factor * sizeof(pcsca_bd_t));

for (i = 0; i < N_DMA_RX_BUF; i++, ptdescr++) {
memset_io(ptdescr, 0, sizeof(pcsca_bd_t));
@@ -365,88 +452,129 @@ static void rx_dma_buf_init(pc300_t * card, int ch)
rx_dma_buf_pt_init(card, ch);
}

-static void tx_dma_buf_check(pc300_t * card, int ch)
+static void tx_dma_buf_check(pc300_t *card, int ch)
{
- volatile pcsca_bd_t __iomem *ptdescr;
+ pcsca_bd_t __iomem *ptdescr;
int i;
u16 first_bd = card->chan[ch].tx_first_bd;
u16 next_bd = card->chan[ch].tx_next_bd;

- printk("#CH%d: f_bd = %d(0x%08zx), n_bd = %d(0x%08zx)\n", ch,
- first_bd, TX_BD_ADDR(ch, first_bd),
- next_bd, TX_BD_ADDR(ch, next_bd));
- for (i = first_bd,
- ptdescr = (card->hw.rambase + TX_BD_ADDR(ch, first_bd));
- i != ((next_bd + 1) & (N_DMA_TX_BUF - 1));
- i = (i + 1) & (N_DMA_TX_BUF - 1),
- ptdescr = (card->hw.rambase + TX_BD_ADDR(ch, i))) {
- printk("\n CH%d TX%d: next=0x%x, ptbuf=0x%x, ST=0x%x, len=%d",
- ch, i, cpc_readl(&ptdescr->next),
- cpc_readl(&ptdescr->ptbuf),
- cpc_readb(&ptdescr->status), cpc_readw(&ptdescr->len));
+ printk(KERN_DEBUG "#CH%d: f_bd = %d(0x%08x), n_bd = %d(0x%08x)\n", ch,
+ first_bd, (u32)TX_BD_ADDR(ch, first_bd),
+ next_bd, (u32)TX_BD_ADDR(ch, next_bd));
+ for (
+ i = first_bd,
+ ptdescr = (pcsca_bd_t *)
+ (card->hw.rambase + TX_BD_ADDR(ch, first_bd));
+
+ i != ((next_bd + 1) & (N_DMA_TX_BUF - 1));
+
+ i = (i + 1) & (N_DMA_TX_BUF - 1),
+ ptdescr = (pcsca_bd_t *)
+ (card->hw.rambase + TX_BD_ADDR(ch, i))
+ ) {
+ printk(KERN_DEBUG
+ "\n CH%d TX%d: next=0x%08x, ptbuf=0x%08x, ST=0x%2x, len=%d",
+ ch, i, (u32) cpc_readl(&ptdescr->next),
+ (u32) cpc_readl(&ptdescr->ptbuf),
+ cpc_readb(&ptdescr->status), cpc_readw(&ptdescr->len));
}
- printk("\n");
+ printk(KERN_DEBUG "\n");
}

#ifdef PC300_DEBUG_OTHER
/* Show all TX buffer descriptors */
-static void tx1_dma_buf_check(pc300_t * card, int ch)
+static void tx1_dma_buf_check(pc300_t *card, int ch)
{
- volatile pcsca_bd_t __iomem *ptdescr;
+ pcsca_bd_t __iomem *ptdescr;
int i;
u16 first_bd = card->chan[ch].tx_first_bd;
u16 next_bd = card->chan[ch].tx_next_bd;
- u32 scabase = card->hw.scabase;
-
- printk ("\nnfree_tx_bd = %d\n", card->chan[ch].nfree_tx_bd);
- printk("#CH%d: f_bd = %d(0x%08x), n_bd = %d(0x%08x)\n", ch,
- first_bd, TX_BD_ADDR(ch, first_bd),
- next_bd, TX_BD_ADDR(ch, next_bd));
- printk("TX_CDA=0x%08x, TX_EDA=0x%08x\n",
- cpc_readl(scabase + DTX_REG(CDAL, ch)),
- cpc_readl(scabase + DTX_REG(EDAL, ch)));
+ uintptr_t scabase = (uintptr_t)(card->hw.scabase);
+
+ printk(KERN_DEBUG
+ "\nnfree_tx_bd = %d\n", card->chan[ch].nfree_tx_bd);
+ printk(KERN_DEBUG
+ "#CH%d: f_bd = %d(0x%08x), n_bd = %d(0x%08x)\n", ch,
+ first_bd, (u32)TX_BD_ADDR(ch, first_bd),
+ next_bd, (u32)TX_BD_ADDR(ch, next_bd));
+ printk(KERN_DEBUG
+ "TX_CDA=0x%08x, TX_EDA=0x%08x\n",
+ (u32)(cpc_readl(scabase + DTX_REG(CDAL, ch))),
+ (u32)(cpc_readl(scabase + DTX_REG(EDAL, ch))));
+ printk(KERN_DEBUG
+ "TX_CDA(BH/B/H/L) = %02x %02x %02x %02x\n",
+ (u8) cpc_readb(scabase + DTX_REG(CDABH, ch)),
+ (u8) cpc_readb(scabase + DTX_REG(CDAB, ch)),
+ (u8) cpc_readb(scabase + DTX_REG(CDAH, ch)),
+ (u8) cpc_readb(scabase + DTX_REG(CDAL, ch)));
+ printk(KERN_DEBUG
+ "TX_EDA(BH/B/H/L) = %02x %02x %02x %02x\n",
+ (u8) cpc_readb(scabase + DTX_REG(EDABH, ch)),
+ (u8) cpc_readb(scabase + DTX_REG(EDAB, ch)),
+ (u8) cpc_readb(scabase + DTX_REG(EDAH, ch)),
+ (u8) cpc_readb(scabase + DTX_REG(EDAL, ch)));
for (i = 0; i < N_DMA_TX_BUF; i++) {
ptdescr = (card->hw.rambase + TX_BD_ADDR(ch, i));
- printk("\n CH%d TX%d: next=0x%x, ptbuf=0x%x, ST=0x%x, len=%d",
- ch, i, cpc_readl(&ptdescr->next),
- cpc_readl(&ptdescr->ptbuf),
- cpc_readb(&ptdescr->status), cpc_readw(&ptdescr->len));
+ printk(KERN_DEBUG
+ "\n CH%d TX%d: next=0x%x, ptbuf=0x%x, ST=0x%x, len=%d",
+ ch, i, (u32) cpc_readl(&ptdescr->next),
+ (u32) cpc_readl(&ptdescr->ptbuf),
+ cpc_readb(&ptdescr->status),
+ cpc_readw(&ptdescr->len));
+ printk(KERN_DEBUG
+ "\n CH%d TX%d: next=0x%02x%02x%02x%02x (endianess-correct)",
+ ch, i,
+ cpc_readb((unsigned char *)(&(ptdescr->next))+0x3),
+ cpc_readb((unsigned char *)(&(ptdescr->next))+0x2),
+ cpc_readb((unsigned char *)(&(ptdescr->next))+0x1),
+ cpc_readb((unsigned char *)(&(ptdescr->next))+0x0));
}
- printk("\n");
+ printk(KERN_DEBUG "\n");
}
#endif

-static void rx_dma_buf_check(pc300_t * card, int ch)
+static void rx_dma_buf_check(pc300_t *card, int ch)
{
- volatile pcsca_bd_t __iomem *ptdescr;
+ pcsca_bd_t __iomem *ptdescr;
int i;
u16 first_bd = card->chan[ch].rx_first_bd;
u16 last_bd = card->chan[ch].rx_last_bd;
int ch_factor;

ch_factor = ch * N_DMA_RX_BUF;
- printk("#CH%d: f_bd = %d, l_bd = %d\n", ch, first_bd, last_bd);
- for (i = 0, ptdescr = (card->hw.rambase +
- DMA_RX_BD_BASE + ch_factor * sizeof(pcsca_bd_t));
- i < N_DMA_RX_BUF; i++, ptdescr++) {
+ printk(KERN_DEBUG
+ "#CH%d: f_bd = %d, l_bd = %d\n", ch, first_bd, last_bd);
+ for (
+ i = 0,
+ ptdescr = (pcsca_bd_t *)
+ (card->hw.rambase + DMA_RX_BD_BASE +
+ ch_factor * sizeof(pcsca_bd_t));
+
+ i < N_DMA_RX_BUF;
+
+ i++,
+ ptdescr++
+ ) {
if (cpc_readb(&ptdescr->status) & DST_OSB)
- printk ("\n CH%d RX%d: next=0x%x, ptbuf=0x%x, ST=0x%x, len=%d",
- ch, i, cpc_readl(&ptdescr->next),
- cpc_readl(&ptdescr->ptbuf),
- cpc_readb(&ptdescr->status),
- cpc_readw(&ptdescr->len));
+ printk(KERN_DEBUG
+ "\n CH%d RX%d: next=0x%08x, ptbuf=0x%08x, ST=0x%2x, len=%d",
+ ch, i, (u32) cpc_readl(&ptdescr->next),
+ (u32) cpc_readl(&ptdescr->ptbuf),
+ cpc_readb(&ptdescr->status),
+ cpc_readw(&ptdescr->len));
}
- printk("\n");
+ printk(KERN_DEBUG "\n");
}

-static int dma_get_rx_frame_size(pc300_t * card, int ch)
+static int dma_get_rx_frame_size(pc300_t *card, int ch)
{
- volatile pcsca_bd_t __iomem *ptdescr;
+ pcsca_bd_t __iomem *ptdescr;
u16 first_bd = card->chan[ch].rx_first_bd;
int rcvd = 0;
- volatile u8 status;
+ u8 status;

- ptdescr = (card->hw.rambase + RX_BD_ADDR(ch, first_bd));
+ ptdescr = (pcsca_bd_t *)(card->hw.rambase + RX_BD_ADDR(ch, first_bd));
while ((status = cpc_readb(&ptdescr->status)) & DST_OSB) {
rcvd += cpc_readw(&ptdescr->len);
first_bd = (first_bd + 1) & (N_DMA_RX_BUF - 1);
@@ -455,8 +583,11 @@ static int dma_get_rx_frame_size(pc300_t * card, int ch)
* (dma_buf_read will clean the buffer descriptors in this case). */
return rcvd;
}
- ptdescr = (card->hw.rambase + cpc_readl(&ptdescr->next));
+ ptdescr = (pcsca_bd_t *)
+ (card->hw.rambase +
+ cpc_readl(&ptdescr->next));
}
+
return -1;
}

@@ -467,7 +598,7 @@ static int dma_get_rx_frame_size(pc300_t * card, int ch)
static int dma_buf_write(pc300_t *card, int ch, u8 *ptdata, int len)
{
int i, nchar;
- volatile pcsca_bd_t __iomem *ptdescr;
+ pcsca_bd_t __iomem *ptdescr;
int tosend = len;
u8 nbuf = ((len - 1) / BD_DEF_LEN) + 1;

@@ -476,11 +607,12 @@ static int dma_buf_write(pc300_t *card, int ch, u8 *ptdata, int len)
}

for (i = 0; i < nbuf; i++) {
- ptdescr = (card->hw.rambase +
+ ptdescr = (pcsca_bd_t *) (card->hw.rambase +
TX_BD_ADDR(ch, card->chan[ch].tx_next_bd));
nchar = cpc_min(BD_DEF_LEN, tosend);
if (cpc_readb(&ptdescr->status) & DST_OSB) {
- memcpy_toio((card->hw.rambase + cpc_readl(&ptdescr->ptbuf)),
+ memcpy_toio((card->hw.rambase +
+ cpc_readl(&ptdescr->ptbuf)),
&ptdata[len - tosend], nchar);
cpc_writew(&ptdescr->len, nchar);
card->chan[ch].nfree_tx_bd--;
@@ -495,7 +627,8 @@ static int dma_buf_write(pc300_t *card, int ch, u8 *ptdata, int len)
}
tosend -= nchar;
card->chan[ch].tx_next_bd =
- (card->chan[ch].tx_next_bd + 1) & (N_DMA_TX_BUF - 1);
+ (card->chan[ch].tx_next_bd + 1) &
+ (N_DMA_TX_BUF - 1);
}
/* If it gets to here, it means we have sent the whole frame */
return 0;
@@ -505,20 +638,22 @@ static int dma_buf_write(pc300_t *card, int ch, u8 *ptdata, int len)
* dma_buf_read: reads a frame from the Rx DMA buffers
* NOTE: this function reads one frame at a time.
*/
-static int dma_buf_read(pc300_t * card, int ch, struct sk_buff *skb)
+static int dma_buf_read(pc300_t *card, int ch, struct sk_buff *skb)
{
int nchar;
pc300ch_t *chan = (pc300ch_t *) & card->chan[ch];
- volatile pcsca_bd_t __iomem *ptdescr;
+ pcsca_bd_t __iomem *ptdescr;
int rcvd = 0;
- volatile u8 status;
+ u8 status;

- ptdescr = (card->hw.rambase +
+ ptdescr = (pcsca_bd_t *)(card->hw.rambase +
RX_BD_ADDR(ch, chan->rx_first_bd));
while ((status = cpc_readb(&ptdescr->status)) & DST_OSB) {
nchar = cpc_readw(&ptdescr->len);
- if ((status & (DST_OVR | DST_CRC | DST_RBIT | DST_SHRT | DST_ABT)) ||
- (nchar > BD_DEF_LEN)) {
+ if ((status &
+ (DST_OVR | DST_CRC | DST_RBIT |
+ DST_SHRT | DST_ABT))
+ || (nchar > BD_DEF_LEN)) {

if (nchar > BD_DEF_LEN)
status |= DST_RBIT;
@@ -529,7 +664,7 @@ static int dma_buf_read(pc300_t * card, int ch, struct sk_buff *skb)
chan->rx_first_bd = (chan->rx_first_bd+1) & (N_DMA_RX_BUF-1);
if (status & DST_EOM)
break;
- ptdescr = (card->hw.rambase +
+ ptdescr = (pcsca_bd_t *) (card->hw.rambase +
cpc_readl(&ptdescr->next));
status = cpc_readb(&ptdescr->status);
}
@@ -538,23 +673,29 @@ static int dma_buf_read(pc300_t * card, int ch, struct sk_buff *skb)
if (nchar != 0) {
if (skb) {
memcpy_fromio(skb_put(skb, nchar),
- (card->hw.rambase+cpc_readl(&ptdescr->ptbuf)),nchar);
+ (void *)(card->hw.rambase +
+ cpc_readl(&ptdescr->ptbuf)), nchar);
}
rcvd += nchar;
}
cpc_writeb(&ptdescr->status, 0);
cpc_writeb(&ptdescr->len, 0);
- chan->rx_first_bd = (chan->rx_first_bd + 1) & (N_DMA_RX_BUF - 1);
+ chan->rx_first_bd =
+ (chan->rx_first_bd + 1) &
+ (N_DMA_RX_BUF - 1);

if (status & DST_EOM)
break;

- ptdescr = (card->hw.rambase + cpc_readl(&ptdescr->next));
+ ptdescr = (pcsca_bd_t *)
+ (card->hw.rambase + cpc_readl(&ptdescr->next));
}

if (rcvd != 0) {
/* Update pointer */
- chan->rx_last_bd = (chan->rx_first_bd - 1) & (N_DMA_RX_BUF - 1);
+ chan->rx_last_bd =
+ (chan->rx_first_bd - 1) &
+ (N_DMA_RX_BUF - 1);
/* Update EDA */
cpc_writel(card->hw.scabase + DRX_REG(EDAL, ch),
RX_BD_ADDR(ch, chan->rx_last_bd));
@@ -562,9 +703,9 @@ static int dma_buf_read(pc300_t * card, int ch, struct sk_buff *skb)
return rcvd;
}

-static void tx_dma_stop(pc300_t * card, int ch)
+static void tx_dma_stop(pc300_t *card, int ch)
{
- void __iomem *scabase = card->hw.scabase;
+ uintptr_t scabase = (uintptr_t)(card->hw.scabase);
u8 drr_ena_bit = 1 << (5 + 2 * ch);
u8 drr_rst_bit = 1 << (1 + 2 * ch);

@@ -573,9 +714,9 @@ static void tx_dma_stop(pc300_t * card, int ch)
cpc_writeb(scabase + DRR, drr_rst_bit & ~drr_ena_bit);
}

-static void rx_dma_stop(pc300_t * card, int ch)
+static void rx_dma_stop(pc300_t *card, int ch)
{
- void __iomem *scabase = card->hw.scabase;
+ uintptr_t scabase = (uintptr_t)(card->hw.scabase);
u8 drr_ena_bit = 1 << (4 + 2 * ch);
u8 drr_rst_bit = 1 << (2 * ch);

@@ -584,9 +725,9 @@ static void rx_dma_stop(pc300_t * card, int ch)
cpc_writeb(scabase + DRR, drr_rst_bit & ~drr_ena_bit);
}

-static void rx_dma_start(pc300_t * card, int ch)
+static void rx_dma_start(pc300_t *card, int ch)
{
- void __iomem *scabase = card->hw.scabase;
+ uintptr_t scabase = (uintptr_t)(card->hw.scabase);
pc300ch_t *chan = (pc300ch_t *) & card->chan[ch];

/* Start DMA */
@@ -602,7 +743,7 @@ static void rx_dma_start(pc300_t * card, int ch)
cpc_writew(scabase + DRX_REG(BFLL, ch), BD_DEF_LEN);
cpc_writeb(scabase + DSR_RX(ch), DSR_DE);
if (!(cpc_readb(scabase + DSR_RX(ch)) & DSR_DE)) {
- cpc_writeb(scabase + DSR_RX(ch), DSR_DE);
+ cpc_writeb(scabase + DSR_RX(ch), DSR_DE);
}
}

@@ -611,25 +752,26 @@ static void rx_dma_start(pc300_t * card, int ch)
/*************************/
static void falc_issue_cmd(pc300_t *card, int ch, u8 cmd)
{
- void __iomem *falcbase = card->hw.falcbase;
+ uintptr_t falcbase = (uintptr_t)(card->hw.falcbase);
unsigned long i = 0;

while (cpc_readb(falcbase + F_REG(SIS, ch)) & SIS_CEC) {
if (i++ >= PC300_FALC_MAXLOOP) {
- printk("%s: FALC command locked(cmd=0x%x).\n",
- card->chan[ch].d.name, cmd);
+ printk(KERN_ERR
+ "%s: FALC command locked(cmd=0x%x).\n",
+ card->chan[ch].d.name, cmd);
break;
}
}
cpc_writeb(falcbase + F_REG(CMDR, ch), cmd);
}

-static void falc_intr_enable(pc300_t * card, int ch)
+static void falc_intr_enable(pc300_t *card, int ch)
{
pc300ch_t *chan = (pc300ch_t *) & card->chan[ch];
pc300chconf_t *conf = (pc300chconf_t *) & chan->conf;
falc_t *pfalc = (falc_t *) & chan->falc;
- void __iomem *falcbase = card->hw.falcbase;
+ uintptr_t falcbase = (uintptr_t)(card->hw.falcbase);

/* Interrupt pins are open-drain */
cpc_writeb(falcbase + F_REG(IPC, ch),
@@ -674,9 +816,9 @@ static void falc_intr_enable(pc300_t * card, int ch)
}
}

-static void falc_open_timeslot(pc300_t * card, int ch, int timeslot)
+static void falc_open_timeslot(pc300_t *card, int ch, int timeslot)
{
- void __iomem *falcbase = card->hw.falcbase;
+ uintptr_t falcbase = (uintptr_t)(card->hw.falcbase);
u8 tshf = card->chan[ch].falc.offset;

cpc_writeb(falcbase + F_REG((ICB1 + (timeslot - tshf) / 8), ch),
@@ -690,9 +832,9 @@ static void falc_open_timeslot(pc300_t * card, int ch, int timeslot)
(0x80 >> (timeslot & 0x07)));
}

-static void falc_close_timeslot(pc300_t * card, int ch, int timeslot)
+static void falc_close_timeslot(pc300_t *card, int ch, int timeslot)
{
- void __iomem *falcbase = card->hw.falcbase;
+ uintptr_t falcbase = (uintptr_t)(card->hw.falcbase);
u8 tshf = card->chan[ch].falc.offset;

cpc_writeb(falcbase + F_REG((ICB1 + (timeslot - tshf) / 8), ch),
@@ -706,11 +848,11 @@ static void falc_close_timeslot(pc300_t * card, int ch, int timeslot)
~(0x80 >> (timeslot & 0x07)));
}

-static void falc_close_all_timeslots(pc300_t * card, int ch)
+static void falc_close_all_timeslots(pc300_t *card, int ch)
{
pc300ch_t *chan = (pc300ch_t *) & card->chan[ch];
pc300chconf_t *conf = (pc300chconf_t *) & chan->conf;
- void __iomem *falcbase = card->hw.falcbase;
+ uintptr_t falcbase = (uintptr_t)(card->hw.falcbase);

cpc_writeb(falcbase + F_REG(ICB1, ch), 0xff);
cpc_writeb(falcbase + F_REG(TTR1, ch), 0);
@@ -728,11 +870,11 @@ static void falc_close_all_timeslots(pc300_t * card, int ch)
}
}

-static void falc_open_all_timeslots(pc300_t * card, int ch)
+static void falc_open_all_timeslots(pc300_t *card, int ch)
{
pc300ch_t *chan = (pc300ch_t *) & card->chan[ch];
pc300chconf_t *conf = (pc300chconf_t *) & chan->conf;
- void __iomem *falcbase = card->hw.falcbase;
+ uintptr_t falcbase = (uintptr_t)(card->hw.falcbase);

cpc_writeb(falcbase + F_REG(ICB1, ch), 0);
if (conf->fr_mode == PC300_FR_UNFRAMED) {
@@ -760,7 +902,7 @@ static void falc_open_all_timeslots(pc300_t * card, int ch)
}
}

-static void falc_init_timeslot(pc300_t * card, int ch)
+static void falc_init_timeslot(pc300_t *card, int ch)
{
pc300ch_t *chan = (pc300ch_t *) & card->chan[ch];
pc300chconf_t *conf = (pc300chconf_t *) & chan->conf;
@@ -778,7 +920,7 @@ static void falc_init_timeslot(pc300_t * card, int ch)
}
}

-static void falc_enable_comm(pc300_t * card, int ch)
+static void falc_enable_comm(pc300_t *card, int ch)
{
pc300ch_t *chan = (pc300ch_t *) & card->chan[ch];
falc_t *pfalc = (falc_t *) & chan->falc;
@@ -794,7 +936,7 @@ static void falc_enable_comm(pc300_t * card, int ch)
~((CPLD_REG1_FALC_DCD | CPLD_REG1_FALC_CTS) << (2 * ch)));
}

-static void falc_disable_comm(pc300_t * card, int ch)
+static void falc_disable_comm(pc300_t *card, int ch)
{
pc300ch_t *chan = (pc300ch_t *) & card->chan[ch];
falc_t *pfalc = (falc_t *) & chan->falc;
@@ -808,12 +950,12 @@ static void falc_disable_comm(pc300_t * card, int ch)
((CPLD_REG1_FALC_DCD | CPLD_REG1_FALC_CTS) << (2 * ch)));
}

-static void falc_init_t1(pc300_t * card, int ch)
+static void falc_init_t1(pc300_t *card, int ch)
{
pc300ch_t *chan = (pc300ch_t *) & card->chan[ch];
pc300chconf_t *conf = (pc300chconf_t *) & chan->conf;
falc_t *pfalc = (falc_t *) & chan->falc;
- void __iomem *falcbase = card->hw.falcbase;
+ uintptr_t falcbase = (uintptr_t)(card->hw.falcbase);
u8 dja = (ch ? (LIM2_DJA2 | LIM2_DJA1) : 0);

/* Switch to T1 mode (PCM 24) */
@@ -977,12 +1119,12 @@ static void falc_init_t1(pc300_t * card, int ch)
falc_close_all_timeslots(card, ch);
}

-static void falc_init_e1(pc300_t * card, int ch)
+static void falc_init_e1(pc300_t *card, int ch)
{
pc300ch_t *chan = (pc300ch_t *) & card->chan[ch];
pc300chconf_t *conf = (pc300chconf_t *) & chan->conf;
falc_t *pfalc = (falc_t *) & chan->falc;
- void __iomem *falcbase = card->hw.falcbase;
+ uintptr_t falcbase = (uintptr_t)(card->hw.falcbase);
u8 dja = (ch ? (LIM2_DJA2 | LIM2_DJA1) : 0);

/* Switch to E1 mode (PCM 30) */
@@ -1157,9 +1299,9 @@ static void falc_init_e1(pc300_t * card, int ch)
falc_close_all_timeslots(card, ch);
}

-static void falc_init_hdlc(pc300_t * card, int ch)
+static void falc_init_hdlc(pc300_t *card, int ch)
{
- void __iomem *falcbase = card->hw.falcbase;
+ uintptr_t falcbase = (uintptr_t)(card->hw.falcbase);
pc300ch_t *chan = (pc300ch_t *) & card->chan[ch];
pc300chconf_t *conf = (pc300chconf_t *) & chan->conf;

@@ -1183,12 +1325,12 @@ static void falc_init_hdlc(pc300_t * card, int ch)
falc_intr_enable(card, ch);
}

-static void te_config(pc300_t * card, int ch)
+static void te_config(pc300_t *card, int ch)
{
pc300ch_t *chan = (pc300ch_t *) & card->chan[ch];
pc300chconf_t *conf = (pc300chconf_t *) & chan->conf;
falc_t *pfalc = (falc_t *) & chan->falc;
- void __iomem *falcbase = card->hw.falcbase;
+ uintptr_t falcbase = (uintptr_t)(card->hw.falcbase);
u8 dummy;
unsigned long flags;

@@ -1243,12 +1385,12 @@ static void te_config(pc300_t * card, int ch)
CPC_UNLOCK(card, flags);
}

-static void falc_check_status(pc300_t * card, int ch, unsigned char frs0)
+static void falc_check_status(pc300_t *card, int ch, unsigned char frs0)
{
pc300ch_t *chan = (pc300ch_t *) & card->chan[ch];
pc300chconf_t *conf = (pc300chconf_t *) & chan->conf;
falc_t *pfalc = (falc_t *) & chan->falc;
- void __iomem *falcbase = card->hw.falcbase;
+ uintptr_t falcbase = (uintptr_t)(card->hw.falcbase);

/* Verify LOS */
if (frs0 & FRS0_LOS) {
@@ -1399,12 +1541,12 @@ static void falc_check_status(pc300_t * card, int ch, unsigned char frs0)
}
}

-static void falc_update_stats(pc300_t * card, int ch)
+static void falc_update_stats(pc300_t *card, int ch)
{
pc300ch_t *chan = (pc300ch_t *) & card->chan[ch];
pc300chconf_t *conf = (pc300chconf_t *) & chan->conf;
falc_t *pfalc = (falc_t *) & chan->falc;
- void __iomem *falcbase = card->hw.falcbase;
+ uintptr_t falcbase = (uintptr_t)(card->hw.falcbase);
u16 counter;

counter = cpc_readb(falcbase + F_REG(FECL, ch));
@@ -1451,12 +1593,12 @@ static void falc_update_stats(pc300_t * card, int ch)
* the synchronizer and then sent to the system interface.
*----------------------------------------------------------------------------
*/
-static void falc_remote_loop(pc300_t * card, int ch, int loop_on)
+static void falc_remote_loop(pc300_t *card, int ch, int loop_on)
{
pc300ch_t *chan = (pc300ch_t *) & card->chan[ch];
pc300chconf_t *conf = (pc300chconf_t *) & chan->conf;
falc_t *pfalc = (falc_t *) & chan->falc;
- void __iomem *falcbase = card->hw.falcbase;
+ uintptr_t falcbase = (uintptr_t)(card->hw.falcbase);

if (loop_on) {
// EVENT_FALC_ABNORMAL
@@ -1496,11 +1638,11 @@ static void falc_remote_loop(pc300_t * card, int ch, int loop_on)
* coding must be identical.
*----------------------------------------------------------------------------
*/
-static void falc_local_loop(pc300_t * card, int ch, int loop_on)
+static void falc_local_loop(pc300_t *card, int ch, int loop_on)
{
pc300ch_t *chan = (pc300ch_t *) & card->chan[ch];
falc_t *pfalc = (falc_t *) & chan->falc;
- void __iomem *falcbase = card->hw.falcbase;
+ uintptr_t falcbase = (uintptr_t)(card->hw.falcbase);

if (loop_on) {
cpc_writeb(falcbase + F_REG(LIM0, ch),
@@ -1523,12 +1665,12 @@ static void falc_local_loop(pc300_t * card, int ch, int loop_on)
* looped. They are originated by the FALC-LH transmitter.
*----------------------------------------------------------------------------
*/
-static void falc_payload_loop(pc300_t * card, int ch, int loop_on)
+static void falc_payload_loop(pc300_t *card, int ch, int loop_on)
{
pc300ch_t *chan = (pc300ch_t *) & card->chan[ch];
pc300chconf_t *conf = (pc300chconf_t *) & chan->conf;
falc_t *pfalc = (falc_t *) & chan->falc;
- void __iomem *falcbase = card->hw.falcbase;
+ uintptr_t falcbase = (uintptr_t)(card->hw.falcbase);

if (loop_on) {
// EVENT_FALC_ABNORMAL
@@ -1577,11 +1719,11 @@ static void falc_payload_loop(pc300_t * card, int ch, int loop_on)
* Description: Turns XLU bit off in the proper register
*----------------------------------------------------------------------------
*/
-static void turn_off_xlu(pc300_t * card, int ch)
+static void turn_off_xlu(pc300_t *card, int ch)
{
pc300ch_t *chan = (pc300ch_t *) & card->chan[ch];
pc300chconf_t *conf = (pc300chconf_t *) & chan->conf;
- void __iomem *falcbase = card->hw.falcbase;
+ uintptr_t falcbase = (uintptr_t)(card->hw.falcbase);

if (conf->media == IF_IFACE_T1) {
cpc_writeb(falcbase + F_REG(FMR5, ch),
@@ -1598,11 +1740,11 @@ static void turn_off_xlu(pc300_t * card, int ch)
* Description: Turns XLD bit off in the proper register
*----------------------------------------------------------------------------
*/
-static void turn_off_xld(pc300_t * card, int ch)
+static void turn_off_xld(pc300_t *card, int ch)
{
pc300ch_t *chan = (pc300ch_t *) & card->chan[ch];
pc300chconf_t *conf = (pc300chconf_t *) & chan->conf;
- void __iomem *falcbase = card->hw.falcbase;
+ uintptr_t falcbase = (uintptr_t)(card->hw.falcbase);

if (conf->media == IF_IFACE_T1) {
cpc_writeb(falcbase + F_REG(FMR5, ch),
@@ -1620,12 +1762,12 @@ static void turn_off_xld(pc300_t * card, int ch)
* to generate a LOOP activation code over a T1/E1 line.
*----------------------------------------------------------------------------
*/
-static void falc_generate_loop_up_code(pc300_t * card, int ch)
+static void falc_generate_loop_up_code(pc300_t *card, int ch)
{
pc300ch_t *chan = (pc300ch_t *) & card->chan[ch];
pc300chconf_t *conf = (pc300chconf_t *) & chan->conf;
falc_t *pfalc = (falc_t *) & chan->falc;
- void __iomem *falcbase = card->hw.falcbase;
+ uintptr_t falcbase = (uintptr_t)(card->hw.falcbase);

if (conf->media == IF_IFACE_T1) {
cpc_writeb(falcbase + F_REG(FMR5, ch),
@@ -1653,12 +1795,12 @@ static void falc_generate_loop_up_code(pc300_t * card, int ch)
* to generate a LOOP deactivation code over a T1/E1 line.
*----------------------------------------------------------------------------
*/
-static void falc_generate_loop_down_code(pc300_t * card, int ch)
+static void falc_generate_loop_down_code(pc300_t *card, int ch)
{
pc300ch_t *chan = (pc300ch_t *) & card->chan[ch];
pc300chconf_t *conf = (pc300chconf_t *) & chan->conf;
falc_t *pfalc = (falc_t *) & chan->falc;
- void __iomem *falcbase = card->hw.falcbase;
+ uintptr_t falcbase = (uintptr_t)(card->hw.falcbase);

if (conf->media == IF_IFACE_T1) {
cpc_writeb(falcbase + F_REG(FMR5, ch),
@@ -1683,12 +1825,12 @@ static void falc_generate_loop_down_code(pc300_t * card, int ch)
* it on the reception side.
*----------------------------------------------------------------------------
*/
-static void falc_pattern_test(pc300_t * card, int ch, unsigned int activate)
+static void falc_pattern_test(pc300_t *card, int ch, unsigned int activate)
{
pc300ch_t *chan = (pc300ch_t *) & card->chan[ch];
pc300chconf_t *conf = (pc300chconf_t *) & chan->conf;
falc_t *pfalc = (falc_t *) & chan->falc;
- void __iomem *falcbase = card->hw.falcbase;
+ uintptr_t falcbase = (uintptr_t)(card->hw.falcbase);

if (activate) {
pfalc->prbs = 1;
@@ -1730,7 +1872,7 @@ static void falc_pattern_test(pc300_t * card, int ch, unsigned int activate)
* Description: This routine returns the bit error counter value
*----------------------------------------------------------------------------
*/
-static u16 falc_pattern_test_error(pc300_t * card, int ch)
+static u16 falc_pattern_test_error(pc300_t *card, int ch)
{
pc300ch_t *chan = (pc300ch_t *) & card->chan[ch];
falc_t *pfalc = (falc_t *) & chan->falc;
@@ -1748,7 +1890,9 @@ cpc_trace(struct net_device *dev, struct sk_buff *skb_main, char rx_tx)
struct sk_buff *skb;

if ((skb = dev_alloc_skb(10 + skb_main->len)) == NULL) {
- printk("%s: out of memory\n", dev->name);
+ printk(KERN_ERR
+ "%s: out of memory\n",
+ dev->name);
return;
}
skb_put(skb, 10 + skb_main->len);
@@ -1775,15 +1919,24 @@ static void cpc_tx_timeout(struct net_device *dev)
pc300dev_t *d = (pc300dev_t *) dev_to_hdlc(dev)->priv;
pc300ch_t *chan = (pc300ch_t *) d->chan;
pc300_t *card = (pc300_t *) chan->card;
+ struct net_device_stats *stats = &(dev->stats);
int ch = chan->channel;
unsigned long flags;
u8 ilar;

- dev->stats.tx_errors++;
- dev->stats.tx_aborted_errors++;
+#ifdef PC300_DEBUG_OTHER
+ printk(KERN_DEBUG "cpc_tx_timeout()\n");
+ cpc_sca_status(card, ch);
+#endif
+ stats->tx_errors++;
+ stats->tx_aborted_errors++;
CPC_LOCK(card, flags);
if ((ilar = cpc_readb(card->hw.scabase + ILAR)) != 0) {
- printk("%s: ILAR=0x%x\n", dev->name, ilar);
+#ifdef PC300_DEBUG_OTHER
+ printk(KERN_DEBUG
+ "%s: ILAR=0x%x\n",
+ dev->name, ilar);
+#endif
cpc_writeb(card->hw.scabase + ILAR, ilar);
cpc_writeb(card->hw.scabase + DMER, 0x80);
}
@@ -1792,8 +1945,13 @@ static void cpc_tx_timeout(struct net_device *dev)
cpc_readb(card->hw.falcbase + card->hw.cpld_reg2) &
~(CPLD_REG2_FALC_LED1 << (2 * ch)));
}
- dev->trans_start = jiffies; /* prevent tx timeout */
+ dev->trans_start = jiffies;
CPC_UNLOCK(card, flags);
+#ifdef PC300_DEBUG_QUEUE
+ printk(KERN_DEBUG
+ "%s: waking queue, finished cpc_tx_timeout()\n",
+ dev->name);
+#endif
netif_wake_queue(dev);
}

@@ -1802,22 +1960,83 @@ static int cpc_queue_xmit(struct sk_buff *skb, struct net_device *dev)
pc300dev_t *d = (pc300dev_t *) dev_to_hdlc(dev)->priv;
pc300ch_t *chan = (pc300ch_t *) d->chan;
pc300_t *card = (pc300_t *) chan->card;
+ struct net_device_stats *stats = &(dev->stats);
int ch = chan->channel;
unsigned long flags;
+ uintptr_t scabase = (uintptr_t)(card->hw.scabase);
#ifdef PC300_DEBUG_TX
int i;
#endif

- if (!netif_carrier_ok(dev)) {
+#ifdef PC300_DEBUG_TX
+ printk(KERN_DEBUG
+ "%s: cpc_queue_xmit called wih %d bytes\n",
+ dev->name, skb->len);
+#endif
+ if (cpc_readb(scabase + M_REG(ST3, ch)) & ST3_DCD) {
+ if (netif_carrier_ok(dev)) {
+ printk(KERN_INFO
+ "%s: DCD is OFF. Going administrative down.\n",
+ dev->name);
+#ifdef CONFIG_PC300_MLPPP
+ if (chan->conf.proto != PC300_PROTO_MLPPP)
+ netif_carrier_off(dev);
+#else
+ netif_carrier_off(dev);
+#endif
+ card->chan[ch].d.line_off++;
+ }
+ } else { /* DCD = 1 */
+ if (!netif_carrier_ok(dev)) {
+ printk(KERN_INFO
+ "%s: DCD is ON. Going administrative up.\n",
+ dev->name);
+#ifdef CONFIG_PC300_MLPPP
+ if (chan->conf.proto != PC300_PROTO_MLPPP) {
+ /* verify if driver is not TTY */
+ netif_carrier_on(dev);
+ }
+#else
+ netif_carrier_on(dev);
+#endif
+ card->chan[ch].d.line_on++;
+ }
+ }
+
+ if (chan->conf.monitor) {
+ /* In monitor mode no Tx is done: ignore packet */
+ dev_kfree_skb(skb);
+#ifdef PC300_DEBUG_OTHER
+ printk(KERN_DEBUG
+ "%s: dropping TX packet because in monitor mode\n",
+ dev->name);
+#endif
+ return 0;
+ } else if (!netif_carrier_ok(dev)) {
/* DCD must be OFF: drop packet */
dev_kfree_skb(skb);
- dev->stats.tx_errors++;
- dev->stats.tx_carrier_errors++;
+ stats->tx_errors++;
+ stats->tx_carrier_errors++;
+#ifdef PC300_DEBUG_OTHER
+ printk(KERN_DEBUG
+ "%s: TX carrier error; dropping silently\n",
+ dev->name);
+#endif
return 0;
- } else if (cpc_readb(card->hw.scabase + M_REG(ST3, ch)) & ST3_DCD) {
- printk("%s: DCD is OFF. Going administrative down.\n", dev->name);
- dev->stats.tx_errors++;
- dev->stats.tx_carrier_errors++;
+ } else if (
+ cpc_readb(card->hw.scabase +
+ M_REG(ST3, ch)) &
+ ST3_DCD) {
+ printk(KERN_INFO
+ "%s: DCD is OFF. Going administrative down.\n",
+ dev->name);
+ stats->tx_errors++;
+ stats->tx_carrier_errors++;
+#ifdef PC300_DEBUG_OTHER
+ printk(KERN_DEBUG
+ "%s: TX carrier error; dropping silently\n",
+ dev->name);
+#endif
dev_kfree_skb(skb);
netif_carrier_off(dev);
CPC_LOCK(card, flags);
@@ -1828,24 +2047,43 @@ static int cpc_queue_xmit(struct sk_buff *skb, struct net_device *dev)
~(CPLD_REG2_FALC_LED1 << (2 * ch)));
}
CPC_UNLOCK(card, flags);
+#ifdef PC300_DEBUG_QUEUE
+ printk(KERN_DEBUG
+ "%s: waking queue after TX carrier error\n",
+ dev->name);
+#endif
netif_wake_queue(dev);
return 0;
}

+ CPC_LOCK(card, flags);
/* Write buffer to DMA buffers */
- if (dma_buf_write(card, ch, (u8 *)skb->data, skb->len) != 0) {
-// printk("%s: write error. Dropping TX packet.\n", dev->name);
+ if (dma_buf_write(
+ card, ch,
+ (u8 *) skb->data,
+ skb->len) != 0) {
+ CPC_UNLOCK(card, flags);
+ printk(KERN_ERR
+ "%s: write error. Dropping TX packet.\n",
+ dev->name);
+#ifdef PC300_DEBUG_QUEUE
+ printk(KERN_DEBUG
+ "%s: stopping queue due to DMA error\n",
+ dev->name);
+#endif
+ d->reason_stopped = CPC_DMA_ERROR;
netif_stop_queue(dev);
dev_kfree_skb(skb);
- dev->stats.tx_errors++;
- dev->stats.tx_dropped++;
+ stats->tx_errors++;
+ stats->tx_dropped++;
return 0;
- }
+ } else
+ CPC_UNLOCK(card, flags);
#ifdef PC300_DEBUG_TX
- printk("%s T:", dev->name);
+ printk(KERN_DEBUG "%s T:", dev->name);
for (i = 0; i < skb->len; i++)
- printk(" %02x", *(skb->data + i));
- printk("\n");
+ printk(KERN_DEBUG " %02x", *(skb->data + i));
+ printk(KERN_DEBUG "\n");
#endif

if (d->trace_on) {
@@ -1854,11 +2092,12 @@ static int cpc_queue_xmit(struct sk_buff *skb, struct net_device *dev)

/* Start transmission */
CPC_LOCK(card, flags);
- /* verify if it has more than one free descriptor */
- if (card->chan[ch].nfree_tx_bd <= 1) {
- /* don't have so stop the queue */
- netif_stop_queue(dev);
- }
+#ifdef PC300_DEBUG_QUEUE
+ printk(KERN_DEBUG
+ "%s: stopping queue for transmission\n",
+ dev->name);
+#endif
+ netif_stop_queue(dev);
cpc_writel(card->hw.scabase + DTX_REG(EDAL, ch),
TX_BD_ADDR(ch, chan->tx_next_bd));
cpc_writeb(card->hw.scabase + M_REG(CMD, ch), CMD_TX_ENA);
@@ -1868,9 +2107,24 @@ static int cpc_queue_xmit(struct sk_buff *skb, struct net_device *dev)
cpc_readb(card->hw.falcbase + card->hw.cpld_reg2) |
(CPLD_REG2_FALC_LED1 << (2 * ch)));
}
+ /* verify if it has more than one free descriptor */
+ if (card->chan[ch].nfree_tx_bd > 1) {
+#ifdef PC300_DEBUG_QUEUE
+ printk(KERN_DEBUG
+ "%s: restarting queue\n",
+ dev->name);
+#endif
+ netif_wake_queue(dev);
+ }
CPC_UNLOCK(card, flags);
dev_kfree_skb(skb);

+#ifdef PC300_DEBUG_TX
+ printk(KERN_DEBUG
+ "%s: cpc_queue_xmit returning normally\n",
+ dev->name);
+#endif
+
return 0;
}

@@ -1879,29 +2133,45 @@ static void cpc_net_rx(struct net_device *dev)
pc300dev_t *d = (pc300dev_t *) dev_to_hdlc(dev)->priv;
pc300ch_t *chan = (pc300ch_t *) d->chan;
pc300_t *card = (pc300_t *) chan->card;
+ struct net_device_stats *stats = &(dev->stats);
int ch = chan->channel;
#ifdef PC300_DEBUG_RX
int i;
#endif
int rxb;
struct sk_buff *skb;
+ uintptr_t scabase = (uintptr_t)(card->hw.scabase);

while (1) {
if ((rxb = dma_get_rx_frame_size(card, ch)) == -1)
return;

if (!netif_carrier_ok(dev)) {
+ if (!(cpc_readb(scabase + M_REG(ST3, ch)) & ST3_DCD)) {
+ printk(KERN_INFO
+ "%s: DCD ON - going up\n",
+ dev->name);
+ netif_carrier_on(dev);
+ }
+ }
+ if (!netif_carrier_ok(dev)) {
/* DCD must be OFF: drop packet */
- printk("%s : DCD is OFF - drop %d rx bytes\n", dev->name, rxb);
+ printk(KERN_INFO
+ "%s : DCD is OFF - drop %d rx bytes\n",
+ dev->name, rxb);
skb = NULL;
} else {
if (rxb > (dev->mtu + 40)) { /* add headers */
- printk("%s : MTU exceeded %d\n", dev->name, rxb);
+ printk(KERN_ERR
+ "%s : MTU exceeded %d\n",
+ dev->name, rxb);
skb = NULL;
} else {
skb = dev_alloc_skb(rxb);
if (skb == NULL) {
- printk("%s: Memory squeeze!!\n", dev->name);
+ printk(KERN_ERR
+ "%s: Memory squeeze!!\n",
+ dev->name);
return;
}
skb->dev = dev;
@@ -1910,28 +2180,30 @@ static void cpc_net_rx(struct net_device *dev)

if (((rxb = dma_buf_read(card, ch, skb)) <= 0) || (skb == NULL)) {
#ifdef PC300_DEBUG_RX
- printk("%s: rxb = %x\n", dev->name, rxb);
+ printk(KERN_DEBUG
+ "%s: rxb = %x\n",
+ dev->name, rxb);
#endif
if ((skb == NULL) && (rxb > 0)) {
/* rxb > dev->mtu */
- dev->stats.rx_errors++;
- dev->stats.rx_length_errors++;
+ stats->rx_errors++;
+ stats->rx_length_errors++;
continue;
}

if (rxb < 0) { /* Invalid frame */
rxb = -rxb;
if (rxb & DST_OVR) {
- dev->stats.rx_errors++;
- dev->stats.rx_fifo_errors++;
+ stats->rx_errors++;
+ stats->rx_fifo_errors++;
}
if (rxb & DST_CRC) {
- dev->stats.rx_errors++;
- dev->stats.rx_crc_errors++;
+ stats->rx_errors++;
+ stats->rx_crc_errors++;
}
if (rxb & (DST_RBIT | DST_SHRT | DST_ABT)) {
- dev->stats.rx_errors++;
- dev->stats.rx_frame_errors++;
+ stats->rx_errors++;
+ stats->rx_frame_errors++;
}
}
if (skb) {
@@ -1940,18 +2212,19 @@ static void cpc_net_rx(struct net_device *dev)
continue;
}

- dev->stats.rx_bytes += rxb;
+ stats->rx_bytes += rxb;

#ifdef PC300_DEBUG_RX
- printk("%s R:", dev->name);
+ printk(KERN_DEBUG "%s R:", dev->name);
for (i = 0; i < skb->len; i++)
- printk(" %02x", *(skb->data + i));
- printk("\n");
+ printk(KERN_DEBUG " %02x", *(skb->data + i));
+ printk(KERN_DEBUG "\n");
#endif
if (d->trace_on) {
cpc_trace(dev, skb, 'R');
}
- dev->stats.rx_packets++;
+ stats->rx_packets++;
+ skb_reset_mac_header(skb);
skb->protocol = hdlc_type_trans(skb, dev);
netif_rx(skb);
}
@@ -1964,23 +2237,28 @@ static void sca_tx_intr(pc300dev_t *dev)
{
pc300ch_t *chan = (pc300ch_t *)dev->chan;
pc300_t *card = (pc300_t *)chan->card;
- int ch = chan->channel;
- volatile pcsca_bd_t __iomem * ptdescr;
+ int ch = chan->channel;
+ pcsca_bd_t *ptdescr;
+ struct net_device_stats *stats = &(dev->netdev->stats);

/* Clean up descriptors from previous transmission */
- ptdescr = (card->hw.rambase +
- TX_BD_ADDR(ch,chan->tx_first_bd));
- while ((cpc_readl(card->hw.scabase + DTX_REG(CDAL,ch)) !=
- TX_BD_ADDR(ch,chan->tx_first_bd)) &&
- (cpc_readb(&ptdescr->status) & DST_OSB)) {
- dev->dev->stats.tx_packets++;
- dev->dev->stats.tx_bytes += cpc_readw(&ptdescr->len);
+ ptdescr = (pcsca_bd_t *)
+ (card->hw.rambase +
+ TX_BD_ADDR(ch, chan->tx_first_bd));
+ while (
+ (cpc_readl(card->hw.scabase + DTX_REG(CDAL, ch)) !=
+ TX_BD_ADDR(ch, chan->tx_first_bd)) &&
+ (cpc_readb(&ptdescr->status) & DST_OSB)
+ ) {
+ stats->tx_packets++;
+ stats->tx_bytes += cpc_readw(&ptdescr->len);
cpc_writeb(&ptdescr->status, DST_OSB);
cpc_writew(&ptdescr->len, 0);
chan->nfree_tx_bd++;
chan->tx_first_bd = (chan->tx_first_bd + 1) & (N_DMA_TX_BUF - 1);
- ptdescr = (card->hw.rambase + TX_BD_ADDR(ch,chan->tx_first_bd));
- }
+ ptdescr = (pcsca_bd_t *)(card->hw.rambase +
+ TX_BD_ADDR(ch, chan->tx_first_bd));
+ }

#ifdef CONFIG_PC300_MLPPP
if (chan->conf.proto == PC300_PROTO_MLPPP) {
@@ -1988,38 +2266,48 @@ static void sca_tx_intr(pc300dev_t *dev)
} else {
#endif
/* Tell the upper layer we are ready to transmit more packets */
- netif_wake_queue(dev->dev);
+#ifdef PC300_DEBUG_QUEUE
+ printk(KERN_DEBUG "Waking queue on TX interrupt\n");
+#endif
+ if (chan->nfree_tx_bd > 1 &&
+ netif_queue_stopped(dev->netdev))
+ netif_wake_queue(dev->netdev);
#ifdef CONFIG_PC300_MLPPP
}
#endif
}

-static void sca_intr(pc300_t * card)
+static void sca_intr(pc300_t *card)
{
- void __iomem *scabase = card->hw.scabase;
- volatile u32 status;
+ uintptr_t scabase = (uintptr_t)(card->hw.scabase);
+ u32 status;
int ch;
int intr_count = 0;
unsigned char dsr_rx;

while ((status = cpc_readl(scabase + ISR0)) != 0) {
+#ifdef PC300_DEBUG_INTR
+ printk(KERN_DEBUG "sca_intr(): status = %08x\n",
+ status);
+#endif
for (ch = 0; ch < card->hw.nchan; ch++) {
pc300ch_t *chan = &card->chan[ch];
pc300dev_t *d = &chan->d;
- struct net_device *dev = d->dev;
+ struct net_device *dev = d->netdev;

spin_lock(&card->card_lock);

/**** Reception ****/
if (status & IR0_DRX((IR0_DMIA | IR0_DMIB), ch)) {
- u8 drx_stat = cpc_readb(scabase + DSR_RX(ch));
+ u8 drx_stat =
+ cpc_readb(scabase + DSR_RX(ch));

/* Clear RX interrupts */
cpc_writeb(scabase + DSR_RX(ch), drx_stat | DSR_DWE);

#ifdef PC300_DEBUG_INTR
- printk ("sca_intr: RX intr chan[%d] (st=0x%08lx, dsr=0x%02x)\n",
- ch, status, drx_stat);
+ printk(KERN_DEBUG "sca_intr: RX intr chan[%d] (st=0x%08x, dsr=0x%02x)\n",
+ ch, status, drx_stat);
#endif
if (status & IR0_DRX(IR0_DMIA, ch)) {
if (drx_stat & DSR_BOF) {
@@ -2039,10 +2327,15 @@ static void sca_intr(pc300_t * card)
}
cpc_net_rx(dev);
/* Discard invalid frames */
- dev->stats.rx_errors++;
- dev->stats.rx_over_errors++;
- chan->rx_first_bd = 0;
- chan->rx_last_bd = N_DMA_RX_BUF - 1;
+ ++dev->stats.
+ rx_errors;
+ ++dev->stats.
+ rx_over_errors;
+ chan->rx_first_bd
+ = 0;
+ chan->rx_last_bd
+ = N_DMA_RX_BUF
+ - 1;
rx_dma_start(card, ch);
}
}
@@ -2077,8 +2370,10 @@ static void sca_intr(pc300_t * card)
}
if (!(dsr_rx = cpc_readb(scabase + DSR_RX(ch)) & DSR_DE)) {
#ifdef PC300_DEBUG_INTR
- printk("%s: RX intr chan[%d] (st=0x%08lx, dsr=0x%02x, dsr2=0x%02x)\n",
- dev->name, ch, status, drx_stat, dsr_rx);
+ printk(KERN_DEBUG
+ "%s: RX intr chan[%d] (st=0x%08x, dsr=0x%02x, dsr2=0x%02x)\n",
+ dev->name, ch, status,
+ drx_stat, dsr_rx);
#endif
cpc_writeb(scabase + DSR_RX(ch), (dsr_rx | DSR_DE) & 0xfe);
}
@@ -2086,14 +2381,15 @@ static void sca_intr(pc300_t * card)

/**** Transmission ****/
if (status & IR0_DTX((IR0_EFT | IR0_DMIA | IR0_DMIB), ch)) {
- u8 dtx_stat = cpc_readb(scabase + DSR_TX(ch));
+ u8 dtx_stat =
+ cpc_readb(scabase + DSR_TX(ch));

/* Clear TX interrupts */
cpc_writeb(scabase + DSR_TX(ch), dtx_stat | DSR_DWE);

#ifdef PC300_DEBUG_INTR
- printk ("sca_intr: TX intr chan[%d] (st=0x%08lx, dsr=0x%02x)\n",
- ch, status, dtx_stat);
+ printk(KERN_DEBUG "sca_intr: TX intr chan[%d] (st=0x%08x, dsr=0x%02x)\n",
+ ch, status, dtx_stat);
#endif
if (status & IR0_DTX(IR0_EFT, ch)) {
if (dtx_stat & DSR_UDRF) {
@@ -2108,8 +2404,17 @@ static void sca_intr(pc300_t * card)
}
dev->stats.tx_errors++;
dev->stats.tx_fifo_errors++;
- sca_tx_intr(d);
+#ifdef PC300_DEBUG_OTHER
+ printk(KERN_DEBUG
+ "sca_intr(): TX underflow! Dump follows:\n");
+ printk(KERN_DEBUG
+ "DSR_TX was 0x%02x\n",
+ dtx_stat);
+ cpc_sca_status(card, ch);
+#endif
+
}
+ sca_tx_intr(d);
}
if (status & IR0_DTX(IR0_DMIA, ch)) {
if (dtx_stat & DSR_BOF) {
@@ -2123,26 +2428,28 @@ static void sca_intr(pc300_t * card)
card->hw.cpld_reg2) &
~ (CPLD_REG2_FALC_LED1 << (2 * ch)));
}
- sca_tx_intr(d);
}
+ sca_tx_intr(d);
}
}

/**** MSCI ****/
if (status & IR0_M(IR0_RXINTA, ch)) {
- u8 st1 = cpc_readb(scabase + M_REG(ST1, ch));
+ u8 st1 =
+ cpc_readb(scabase + M_REG(ST1, ch));

/* Clear MSCI interrupts */
cpc_writeb(scabase + M_REG(ST1, ch), st1);

#ifdef PC300_DEBUG_INTR
- printk("sca_intr: MSCI intr chan[%d] (st=0x%08lx, st1=0x%02x)\n",
- ch, status, st1);
+ printk(KERN_DEBUG "sca_intr: MSCI intr chan[%d] (st=0x%08x, st1=0x%02x)\n",
+ ch, status, st1);
#endif
if (st1 & ST1_CDCD) { /* DCD changed */
if (cpc_readb(scabase + M_REG(ST3, ch)) & ST3_DCD) {
- printk ("%s: DCD is OFF. Going administrative down.\n",
- dev->name);
+ printk(KERN_INFO
+ "%s: DCD is OFF. Going administrative down.\n",
+ dev->name);
#ifdef CONFIG_PC300_MLPPP
if (chan->conf.proto != PC300_PROTO_MLPPP) {
netif_carrier_off(dev);
@@ -2153,8 +2460,9 @@ static void sca_intr(pc300_t * card)
#endif
card->chan[ch].d.line_off++;
} else { /* DCD = 1 */
- printk ("%s: DCD is ON. Going administrative up.\n",
- dev->name);
+ printk(KERN_INFO
+ "%s: DCD is ON. Going administrative up.\n",
+ dev->name);
#ifdef CONFIG_PC300_MLPPP
if (chan->conf.proto != PC300_PROTO_MLPPP)
/* verify if driver is not TTY */
@@ -2176,7 +2484,7 @@ static void falc_t1_loop_detection(pc300_t *card, int ch, u8 frs1)
{
pc300ch_t *chan = (pc300ch_t *) & card->chan[ch];
falc_t *pfalc = (falc_t *) & chan->falc;
- void __iomem *falcbase = card->hw.falcbase;
+ uintptr_t falcbase = (uintptr_t)(card->hw.falcbase);

if (((cpc_readb(falcbase + F_REG(LCR1, ch)) & LCR1_XPRBS) == 0) &&
!pfalc->loop_gen) {
@@ -2201,7 +2509,7 @@ static void falc_e1_loop_detection(pc300_t *card, int ch, u8 rsp)
{
pc300ch_t *chan = (pc300ch_t *) & card->chan[ch];
falc_t *pfalc = (falc_t *) & chan->falc;
- void __iomem *falcbase = card->hw.falcbase;
+ uintptr_t falcbase = (uintptr_t)(card->hw.falcbase);

if (((cpc_readb(falcbase + F_REG(LCR1, ch)) & LCR1_XPRBS) == 0) &&
!pfalc->loop_gen) {
@@ -2222,11 +2530,11 @@ static void falc_e1_loop_detection(pc300_t *card, int ch, u8 rsp)
}
}

-static void falc_t1_intr(pc300_t * card, int ch)
+static void falc_t1_intr(pc300_t *card, int ch)
{
pc300ch_t *chan = (pc300ch_t *) & card->chan[ch];
falc_t *pfalc = (falc_t *) & chan->falc;
- void __iomem *falcbase = card->hw.falcbase;
+ uintptr_t falcbase = (uintptr_t)(card->hw.falcbase);
u8 isr0, isr3, gis;
u8 dummy;

@@ -2269,11 +2577,11 @@ static void falc_t1_intr(pc300_t * card, int ch)
}
}

-static void falc_e1_intr(pc300_t * card, int ch)
+static void falc_e1_intr(pc300_t *card, int ch)
{
pc300ch_t *chan = (pc300ch_t *) & card->chan[ch];
falc_t *pfalc = (falc_t *) & chan->falc;
- void __iomem *falcbase = card->hw.falcbase;
+ uintptr_t falcbase = (uintptr_t)(card->hw.falcbase);
u8 isr1, isr2, isr3, gis, rsp;
u8 dummy;

@@ -2286,8 +2594,8 @@ static void falc_e1_intr(pc300_t * card, int ch)
if (gis & GIS_ISR1) {
isr1 = cpc_readb(falcbase + F_REG(FISR1, ch));
if (isr1 & FISR1_XMB) {
- if ((pfalc->xmb_cause & 2) &&
- pfalc->multiframe_mode) {
+ if ((pfalc->xmb_cause & 2)
+ && pfalc->multiframe_mode) {
if (cpc_readb (falcbase + F_REG(FRS0, ch)) &
(FRS0_LOS | FRS0_AIS | FRS0_LFA)) {
cpc_writeb(falcbase + F_REG(XSP, ch),
@@ -2338,7 +2646,7 @@ static void falc_e1_intr(pc300_t * card, int ch)
}
}

-static void falc_intr(pc300_t * card)
+static void falc_intr(pc300_t *card)
{
int ch;

@@ -2356,19 +2664,24 @@ static void falc_intr(pc300_t * card)

static irqreturn_t cpc_intr(int irq, void *dev_id)
{
- pc300_t *card = dev_id;
- volatile u8 plx_status;
+ pc300_t *card;
+ u8 plx_status;

- if (!card) {
+ card = (pc300_t *)dev_id;
+ if (card == 0) {
#ifdef PC300_DEBUG_INTR
- printk("cpc_intr: spurious intr %d\n", irq);
+ printk(KERN_DEBUG
+ "cpc_intr: spurious intr %d\n",
+ irq);
#endif
return IRQ_NONE; /* spurious intr */
}

- if (!card->hw.rambase) {
+ if (card->hw.rambase == 0) {
#ifdef PC300_DEBUG_INTR
- printk("cpc_intr: spurious intr2 %d\n", irq);
+ printk(KERN_DEBUG
+ "cpc_intr: spurious intr2 %d\n",
+ irq);
#endif
return IRQ_NONE; /* spurious intr */
}
@@ -2394,89 +2707,137 @@ static irqreturn_t cpc_intr(int irq, void *dev_id)
return IRQ_HANDLED;
}

-static void cpc_sca_status(pc300_t * card, int ch)
+static void cpc_sca_status(pc300_t *card, int ch)
{
u8 ilar;
- void __iomem *scabase = card->hw.scabase;
+ uintptr_t scabase = (uintptr_t)(card->hw.scabase);
unsigned long flags;
+ char *reason;

+ printk(KERN_DEBUG "tx_dma_buf_check():\n");
tx_dma_buf_check(card, ch);
+#ifdef PC300_DEBUG_OTHER
+ printk(KERN_DEBUG "tx1_dma_buf_check():\n");
+ tx1_dma_buf_check(card, ch);
+#endif
+ printk(KERN_DEBUG "rx_dma_buf_check():\n");
rx_dma_buf_check(card, ch);
ilar = cpc_readb(scabase + ILAR);
- printk ("ILAR=0x%02x, WCRL=0x%02x, PCR=0x%02x, BTCR=0x%02x, BOLR=0x%02x\n",
- ilar, cpc_readb(scabase + WCRL), cpc_readb(scabase + PCR),
- cpc_readb(scabase + BTCR), cpc_readb(scabase + BOLR));
- printk("TX_CDA=0x%08x, TX_EDA=0x%08x\n",
- cpc_readl(scabase + DTX_REG(CDAL, ch)),
- cpc_readl(scabase + DTX_REG(EDAL, ch)));
- printk("RX_CDA=0x%08x, RX_EDA=0x%08x, BFL=0x%04x\n",
- cpc_readl(scabase + DRX_REG(CDAL, ch)),
- cpc_readl(scabase + DRX_REG(EDAL, ch)),
- cpc_readw(scabase + DRX_REG(BFLL, ch)));
- printk("DMER=0x%02x, DSR_TX=0x%02x, DSR_RX=0x%02x\n",
- cpc_readb(scabase + DMER), cpc_readb(scabase + DSR_TX(ch)),
- cpc_readb(scabase + DSR_RX(ch)));
- printk("DMR_TX=0x%02x, DMR_RX=0x%02x, DIR_TX=0x%02x, DIR_RX=0x%02x\n",
- cpc_readb(scabase + DMR_TX(ch)), cpc_readb(scabase + DMR_RX(ch)),
- cpc_readb(scabase + DIR_TX(ch)),
- cpc_readb(scabase + DIR_RX(ch)));
- printk("DCR_TX=0x%02x, DCR_RX=0x%02x, FCT_TX=0x%02x, FCT_RX=0x%02x\n",
- cpc_readb(scabase + DCR_TX(ch)), cpc_readb(scabase + DCR_RX(ch)),
- cpc_readb(scabase + FCT_TX(ch)),
- cpc_readb(scabase + FCT_RX(ch)));
- printk("MD0=0x%02x, MD1=0x%02x, MD2=0x%02x, MD3=0x%02x, IDL=0x%02x\n",
- cpc_readb(scabase + M_REG(MD0, ch)),
- cpc_readb(scabase + M_REG(MD1, ch)),
- cpc_readb(scabase + M_REG(MD2, ch)),
- cpc_readb(scabase + M_REG(MD3, ch)),
- cpc_readb(scabase + M_REG(IDL, ch)));
- printk("CMD=0x%02x, SA0=0x%02x, SA1=0x%02x, TFN=0x%02x, CTL=0x%02x\n",
- cpc_readb(scabase + M_REG(CMD, ch)),
- cpc_readb(scabase + M_REG(SA0, ch)),
- cpc_readb(scabase + M_REG(SA1, ch)),
- cpc_readb(scabase + M_REG(TFN, ch)),
- cpc_readb(scabase + M_REG(CTL, ch)));
- printk("ST0=0x%02x, ST1=0x%02x, ST2=0x%02x, ST3=0x%02x, ST4=0x%02x\n",
- cpc_readb(scabase + M_REG(ST0, ch)),
- cpc_readb(scabase + M_REG(ST1, ch)),
- cpc_readb(scabase + M_REG(ST2, ch)),
- cpc_readb(scabase + M_REG(ST3, ch)),
- cpc_readb(scabase + M_REG(ST4, ch)));
- printk ("CST0=0x%02x, CST1=0x%02x, CST2=0x%02x, CST3=0x%02x, FST=0x%02x\n",
- cpc_readb(scabase + M_REG(CST0, ch)),
- cpc_readb(scabase + M_REG(CST1, ch)),
- cpc_readb(scabase + M_REG(CST2, ch)),
- cpc_readb(scabase + M_REG(CST3, ch)),
- cpc_readb(scabase + M_REG(FST, ch)));
- printk("TRC0=0x%02x, TRC1=0x%02x, RRC=0x%02x, TBN=0x%02x, RBN=0x%02x\n",
- cpc_readb(scabase + M_REG(TRC0, ch)),
- cpc_readb(scabase + M_REG(TRC1, ch)),
- cpc_readb(scabase + M_REG(RRC, ch)),
- cpc_readb(scabase + M_REG(TBN, ch)),
- cpc_readb(scabase + M_REG(RBN, ch)));
- printk("TFS=0x%02x, TNR0=0x%02x, TNR1=0x%02x, RNR=0x%02x\n",
- cpc_readb(scabase + M_REG(TFS, ch)),
- cpc_readb(scabase + M_REG(TNR0, ch)),
- cpc_readb(scabase + M_REG(TNR1, ch)),
- cpc_readb(scabase + M_REG(RNR, ch)));
- printk("TCR=0x%02x, RCR=0x%02x, TNR1=0x%02x, RNR=0x%02x\n",
- cpc_readb(scabase + M_REG(TCR, ch)),
- cpc_readb(scabase + M_REG(RCR, ch)),
- cpc_readb(scabase + M_REG(TNR1, ch)),
- cpc_readb(scabase + M_REG(RNR, ch)));
- printk("TXS=0x%02x, RXS=0x%02x, EXS=0x%02x, TMCT=0x%02x, TMCR=0x%02x\n",
- cpc_readb(scabase + M_REG(TXS, ch)),
- cpc_readb(scabase + M_REG(RXS, ch)),
- cpc_readb(scabase + M_REG(EXS, ch)),
- cpc_readb(scabase + M_REG(TMCT, ch)),
- cpc_readb(scabase + M_REG(TMCR, ch)));
- printk("IE0=0x%02x, IE1=0x%02x, IE2=0x%02x, IE4=0x%02x, FIE=0x%02x\n",
- cpc_readb(scabase + M_REG(IE0, ch)),
- cpc_readb(scabase + M_REG(IE1, ch)),
- cpc_readb(scabase + M_REG(IE2, ch)),
- cpc_readb(scabase + M_REG(IE4, ch)),
- cpc_readb(scabase + M_REG(FIE, ch)));
- printk("IER0=0x%08x\n", cpc_readl(scabase + IER0));
+ printk(KERN_DEBUG
+ "ILAR=0x%02x, WCRL=0x%02x, PCR=0x%02x, "
+ "BTCR=0x%02x, BOLR=0x%02x\n",
+ ilar, cpc_readb(scabase + WCRL),
+ cpc_readb(scabase + PCR),
+ cpc_readb(scabase + BTCR),
+ cpc_readb(scabase + BOLR));
+ printk(KERN_DEBUG
+ "TX_CDA=0x%08x, TX_EDA=0x%08x\n",
+ (u32) cpc_readl(scabase + DTX_REG(CDAL, ch)),
+ (u32) cpc_readl(scabase + DTX_REG(EDAL, ch)));
+ printk(KERN_DEBUG
+ "RX_CDA=0x%08x, RX_EDA=0x%08x, BFL=0x%04x\n",
+ (u32) cpc_readl(scabase + DRX_REG(CDAL, ch)),
+ (u32) cpc_readl(scabase + DRX_REG(EDAL, ch)),
+ cpc_readw(scabase + DRX_REG(BFLL, ch)));
+ printk(KERN_DEBUG
+ "DMER=0x%02x, DSR_TX=0x%02x, DSR_RX=0x%02x\n",
+ cpc_readb(scabase + DMER),
+ cpc_readb(scabase + DSR_TX(ch)),
+ cpc_readb(scabase + DSR_RX(ch)));
+ printk(KERN_DEBUG
+ "DMR_TX=0x%02x, DMR_RX=0x%02x, DIR_TX=0x%02x, DIR_RX=0x%02x\n",
+ cpc_readb(scabase + DMR_TX(ch)),
+ cpc_readb(scabase + DMR_RX(ch)),
+ cpc_readb(scabase + DIR_TX(ch)),
+ cpc_readb(scabase + DIR_RX(ch)));
+ printk(KERN_DEBUG
+ "DCR_TX=0x%02x, DCR_RX=0x%02x, FCT_TX=0x%02x, FCT_RX=0x%02x\n",
+ cpc_readb(scabase + DCR_TX(ch)),
+ cpc_readb(scabase + DCR_RX(ch)),
+ cpc_readb(scabase + FCT_TX(ch)),
+ cpc_readb(scabase + FCT_RX(ch)));
+ printk(KERN_DEBUG
+ "MD0=0x%02x, MD1=0x%02x, MD2=0x%02x, MD3=0x%02x, IDL=0x%02x\n",
+ cpc_readb(scabase + M_REG(MD0, ch)),
+ cpc_readb(scabase + M_REG(MD1, ch)),
+ cpc_readb(scabase + M_REG(MD2, ch)),
+ cpc_readb(scabase + M_REG(MD3, ch)),
+ cpc_readb(scabase + M_REG(IDL, ch)));
+ printk(KERN_DEBUG
+ "CMD=0x%02x, SA0=0x%02x, SA1=0x%02x, TFN=0x%02x, CTL=0x%02x\n",
+ cpc_readb(scabase + M_REG(CMD, ch)),
+ cpc_readb(scabase + M_REG(SA0, ch)),
+ cpc_readb(scabase + M_REG(SA1, ch)),
+ cpc_readb(scabase + M_REG(TFN, ch)),
+ cpc_readb(scabase + M_REG(CTL, ch)));
+ printk(KERN_DEBUG
+ "ST0=0x%02x, ST1=0x%02x, ST2=0x%02x, ST3=0x%02x, ST4=0x%02x\n",
+ cpc_readb(scabase + M_REG(ST0, ch)),
+ cpc_readb(scabase + M_REG(ST1, ch)),
+ cpc_readb(scabase + M_REG(ST2, ch)),
+ cpc_readb(scabase + M_REG(ST3, ch)),
+ cpc_readb(scabase + M_REG(ST4, ch)));
+ printk(KERN_DEBUG
+ "CST0=0x%02x, CST1=0x%02x, CST2=0x%02x, CST3=0x%02x, FST=0x%02x\n",
+ cpc_readb(scabase + M_REG(CST0, ch)),
+ cpc_readb(scabase + M_REG(CST1, ch)),
+ cpc_readb(scabase + M_REG(CST2, ch)),
+ cpc_readb(scabase + M_REG(CST3, ch)),
+ cpc_readb(scabase + M_REG(FST, ch)));
+ printk(KERN_DEBUG
+ "TRC0=0x%02x, TRC1=0x%02x, RRC=0x%02x, TBN=0x%02x, RBN=0x%02x\n",
+ cpc_readb(scabase + M_REG(TRC0, ch)),
+ cpc_readb(scabase + M_REG(TRC1, ch)),
+ cpc_readb(scabase + M_REG(RRC, ch)),
+ cpc_readb(scabase + M_REG(TBN, ch)),
+ cpc_readb(scabase + M_REG(RBN, ch)));
+ printk(KERN_DEBUG
+ "TFS=0x%02x, TNR0=0x%02x, TNR1=0x%02x, RNR=0x%02x\n",
+ cpc_readb(scabase + M_REG(TFS, ch)),
+ cpc_readb(scabase + M_REG(TNR0, ch)),
+ cpc_readb(scabase + M_REG(TNR1, ch)),
+ cpc_readb(scabase + M_REG(RNR, ch)));
+ printk(KERN_DEBUG
+ "TCR=0x%02x, RCR=0x%02x, TNR1=0x%02x, RNR=0x%02x\n",
+ cpc_readb(scabase + M_REG(TCR, ch)),
+ cpc_readb(scabase + M_REG(RCR, ch)),
+ cpc_readb(scabase + M_REG(TNR1, ch)),
+ cpc_readb(scabase + M_REG(RNR, ch)));
+ printk(KERN_DEBUG
+ "TXS=0x%02x, RXS=0x%02x, EXS=0x%02x, TMCT=0x%02x, TMCR=0x%02x\n",
+ cpc_readb(scabase + M_REG(TXS, ch)),
+ cpc_readb(scabase + M_REG(RXS, ch)),
+ cpc_readb(scabase + M_REG(EXS, ch)),
+ cpc_readb(scabase + M_REG(TMCT, ch)),
+ cpc_readb(scabase + M_REG(TMCR, ch)));
+ printk(KERN_DEBUG
+ "IE0=0x%02x, IE1=0x%02x, IE2=0x%02x, IE4=0x%02x, FIE=0x%02x\n",
+ cpc_readb(scabase + M_REG(IE0, ch)),
+ cpc_readb(scabase + M_REG(IE1, ch)),
+ cpc_readb(scabase + M_REG(IE2, ch)),
+ cpc_readb(scabase + M_REG(IE4, ch)),
+ cpc_readb(scabase + M_REG(FIE, ch)));
+ printk(KERN_DEBUG
+ "IER0=0x%08x\n",
+ (u32) cpc_readl(scabase + IER0));
+ switch (card->chan[ch].d.reason_stopped) {
+ case CPC_DMA_FULL:
+ reason = "CPC_DMA_FULL";
+ break;
+ case CPC_DMA_ERROR:
+ reason = "CPC_DMA_ERROR";
+ break;
+ case TRANSMISSION_ACTIVE:
+ reason = "TRANSMISSION_ACTIVE";
+ break;
+ case CHANNEL_CLOSED:
+ reason = "CHANNEL_CLOSED";
+ break;
+ default:
+ reason = "unknown";
+ break;
+ }
+ printk(KERN_DEBUG "reason_stopped = %s\n", reason);

if (ilar != 0) {
CPC_LOCK(card, flags);
@@ -2486,73 +2847,157 @@ static void cpc_sca_status(pc300_t * card, int ch)
}
}

-static void cpc_falc_status(pc300_t * card, int ch)
+static void cpc_falc_status(pc300_t *card, int ch)
{
pc300ch_t *chan = &card->chan[ch];
falc_t *pfalc = (falc_t *) & chan->falc;
unsigned long flags;

CPC_LOCK(card, flags);
- printk("CH%d: %s %s %d channels\n",
- ch, (pfalc->sync ? "SYNC" : ""), (pfalc->active ? "ACTIVE" : ""),
- pfalc->num_channels);
-
- printk(" pden=%d, los=%d, losr=%d, lfa=%d, farec=%d\n",
- pfalc->pden, pfalc->los, pfalc->losr, pfalc->lfa, pfalc->farec);
- printk(" lmfa=%d, ais=%d, sec=%d, es=%d, rai=%d\n",
- pfalc->lmfa, pfalc->ais, pfalc->sec, pfalc->es, pfalc->rai);
- printk(" bec=%d, fec=%d, cvc=%d, cec=%d, ebc=%d\n",
- pfalc->bec, pfalc->fec, pfalc->cvc, pfalc->cec, pfalc->ebc);
-
- printk("\n");
- printk(" STATUS: %s %s %s %s %s %s\n",
- (pfalc->red_alarm ? "RED" : ""),
- (pfalc->blue_alarm ? "BLU" : ""),
- (pfalc->yellow_alarm ? "YEL" : ""),
- (pfalc->loss_fa ? "LFA" : ""),
- (pfalc->loss_mfa ? "LMF" : ""), (pfalc->prbs ? "PRB" : ""));
+ printk(KERN_DEBUG
+ "CH%d: %s %s %d channels\n",
+ ch,
+ (pfalc->sync ? "SYNC" : ""),
+ (pfalc->active ? "ACTIVE" : ""),
+ pfalc->num_channels);
+
+ printk(KERN_DEBUG
+ " pden=%d, los=%d, losr=%d, lfa=%d, farec=%d\n",
+ pfalc->pden, pfalc->los,
+ pfalc->losr, pfalc->lfa,
+ pfalc->farec);
+ printk(KERN_DEBUG
+ " lmfa=%d, ais=%d, sec=%d, es=%d, rai=%d\n",
+ pfalc->lmfa, pfalc->ais,
+ pfalc->sec, pfalc->es,
+ pfalc->rai);
+ printk(KERN_DEBUG
+ " bec=%d, fec=%d, cvc=%d, cec=%d, ebc=%d\n",
+ pfalc->bec, pfalc->fec,
+ pfalc->cvc, pfalc->cec,
+ pfalc->ebc);
+
+ printk(KERN_DEBUG "\n");
+ printk(KERN_DEBUG
+ " STATUS: %s %s %s %s %s %s\n",
+ (pfalc->red_alarm ? "RED" : ""),
+ (pfalc->blue_alarm ? "BLU" : ""),
+ (pfalc->yellow_alarm ? "YEL" : ""),
+ (pfalc->loss_fa ? "LFA" : ""),
+ (pfalc->loss_mfa ? "LMF" : ""),
+ (pfalc->prbs ? "PRB" : ""));
CPC_UNLOCK(card, flags);
}

static int cpc_change_mtu(struct net_device *dev, int new_mtu)
{
+#ifdef PC300_DEBUG_OTHER
+ printk(KERN_DEBUG "%s: change MTU to %d\n", dev->name, new_mtu);
+#endif
if ((new_mtu < 128) || (new_mtu > PC300_DEF_MTU))
return -EINVAL;
dev->mtu = new_mtu;
return 0;
}

+/* Helper function to produce userland version of network stats */
+static void cpc_net_stats_to_user(const struct net_device_stats *stats,
+ struct pc300_net_stats *user_stats)
+{
+ user_stats->rx_packets = stats->rx_packets;
+ user_stats->tx_packets = stats->tx_packets;
+ user_stats->rx_bytes = stats->rx_bytes;
+ user_stats->tx_bytes = stats->tx_bytes;
+ user_stats->rx_errors = stats->rx_errors;
+ user_stats->tx_errors = stats->tx_errors;
+ user_stats->rx_dropped = stats->rx_dropped;
+ user_stats->tx_dropped = stats->tx_dropped;
+ user_stats->multicast = stats->multicast;
+ user_stats->collisions = stats->collisions;
+ user_stats->rx_length_errors = stats->rx_length_errors;
+ user_stats->rx_over_errors = stats->rx_over_errors;
+ user_stats->rx_crc_errors = stats->rx_crc_errors;
+ user_stats->rx_frame_errors = stats->rx_frame_errors;
+ user_stats->rx_fifo_errors = stats->rx_fifo_errors;
+ user_stats->rx_missed_errors = stats->rx_missed_errors;
+ user_stats->tx_aborted_errors = stats->tx_aborted_errors;
+ user_stats->tx_carrier_errors = stats->tx_carrier_errors;
+ user_stats->tx_fifo_errors = stats->tx_fifo_errors;
+ user_stats->tx_heartbeat_errors = stats->tx_heartbeat_errors;
+ user_stats->tx_window_errors = stats->tx_window_errors;
+ user_stats->rx_compressed = stats->rx_compressed;
+ user_stats->tx_compressed = stats->tx_compressed;
+}
+
+/* Helper function to produce userland version of pc300hw struct */
+static void cpc_hw_info_to_user(const pc300hw_t *hw,
+ struct pc300hw_user *user_hw)
+{
+ memset(user_hw, 0, sizeof(*user_hw));
+ user_hw->type = hw->type;
+ user_hw->bus = hw->bus;
+ user_hw->nchan = hw->nchan;
+ user_hw->irq = hw->irq;
+ user_hw->clock = hw->clock;
+ user_hw->cpld_id = hw->cpld_id;
+ user_hw->cpld_reg1 = hw->cpld_reg1;
+ user_hw->cpld_reg2 = hw->cpld_reg2;
+ user_hw->gpioc_reg = hw->gpioc_reg;
+ user_hw->intctl_reg = hw->intctl_reg;
+ user_hw->iosize = hw->iosize;
+ user_hw->plxsize = hw->plxsize;
+ user_hw->scasize = hw->scasize;
+ user_hw->alloc_ramsize = hw->alloc_ramsize;
+ user_hw->ramsize = hw->ramsize;
+ user_hw->falcsize = hw->falcsize;
+}
+
static int cpc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
{
- pc300dev_t *d = (pc300dev_t *) dev_to_hdlc(dev)->priv;
+ pc300dev_t *d = (pc300dev_t *) (dev_to_hdlc(dev))->priv;
pc300ch_t *chan = (pc300ch_t *) d->chan;
pc300_t *card = (pc300_t *) chan->card;
pc300conf_t conf_aux;
pc300chconf_t *conf = (pc300chconf_t *) & chan->conf;
int ch = chan->channel;
- void __user *arg = ifr->ifr_data;
+ void *arg = (void *) ifr->ifr_data;
struct if_settings *settings = &ifr->ifr_settings;
- void __iomem *scabase = card->hw.scabase;
+ uintptr_t scabase = (uintptr_t)(card->hw.scabase);

if (!capable(CAP_NET_ADMIN))
return -EPERM;

switch (cmd) {
case SIOCGPC300CONF:
+#ifdef PC300_DEBUG_OTHER
+ printk(KERN_DEBUG
+ "%s: SIOCGPC300CONF called, with conf->monitor = %d\n",
+ dev->name, conf->monitor);
+#endif
#ifdef CONFIG_PC300_MLPPP
if (conf->proto != PC300_PROTO_MLPPP) {
- conf->proto = /* FIXME hdlc->proto.id */ 0;
+ conf->proto = 0;
}
#else
- conf->proto = /* FIXME hdlc->proto.id */ 0;
+ conf->proto = 0;
#endif
memcpy(&conf_aux.conf, conf, sizeof(pc300chconf_t));
- memcpy(&conf_aux.hw, &card->hw, sizeof(pc300hw_t));
+ cpc_hw_info_to_user(&card->hw, &conf_aux.hw);
if (!arg ||
copy_to_user(arg, &conf_aux, sizeof(pc300conf_t)))
return -EINVAL;
+#ifdef PC300_DEBUG_OTHER
+ printk(KERN_DEBUG
+ "%s: SIOCGPC300CONF returning, with conf->monitor = %d\n",
+ dev->name, conf->monitor);
+#endif
return 0;
case SIOCSPC300CONF:
+#ifdef PC300_DEBUG_OTHER
+ printk(KERN_DEBUG
+ "%s: SIOCSPC300CONF called, with conf->monitor = %d\n",
+ dev->name, conf->monitor);
+#endif
if (!capable(CAP_NET_ADMIN))
return -EPERM;
if (!arg ||
@@ -2577,12 +3022,15 @@ static int cpc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
}
} else {
memcpy(conf, &conf_aux.conf, sizeof(pc300chconf_t));
- /* FIXME hdlc->proto.id = conf->proto; */
}
}
#else
memcpy(conf, &conf_aux.conf, sizeof(pc300chconf_t));
- /* FIXME hdlc->proto.id = conf->proto; */
+#endif
+#ifdef PC300_DEBUG_OTHER
+ printk(KERN_DEBUG
+ "%s: SIOCSPC300CONF returning, with conf->monitor = %d\n",
+ dev->name, conf->monitor);
#endif
return 0;
case SIOCGPC300STATUS:
@@ -2593,28 +3041,45 @@ static int cpc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
return 0;

case SIOCGPC300UTILSTATS:
- {
- if (!arg) { /* clear statistics */
- memset(&dev->stats, 0, sizeof(dev->stats));
- if (card->hw.type == PC300_TE) {
- memset(&chan->falc, 0, sizeof(falc_t));
- }
- } else {
- pc300stats_t pc300stats;
-
- memset(&pc300stats, 0, sizeof(pc300stats_t));
- pc300stats.hw_type = card->hw.type;
- pc300stats.line_on = card->chan[ch].d.line_on;
- pc300stats.line_off = card->chan[ch].d.line_off;
- memcpy(&pc300stats.gen_stats, &dev->stats,
- sizeof(dev->stats));
- if (card->hw.type == PC300_TE)
- memcpy(&pc300stats.te_stats,&chan->falc,sizeof(falc_t));
- if (copy_to_user(arg, &pc300stats, sizeof(pc300stats_t)))
- return -EFAULT;
+ if (!arg) { /* clear statistics */
+ memset(&dev->stats, 0,
+ sizeof(dev->stats));
+ if (card->hw.type == PC300_TE) {
+ memset(&chan->falc, 0,
+ sizeof(falc_t));
+ }
+ } else {
+ pc300stats_t pc300stats;
+
+ memset(&pc300stats, 0,
+ sizeof(pc300stats_t));
+ pc300stats.hw_type = card->hw.type;
+ pc300stats.line_on = card->chan[ch].d.line_on;
+ pc300stats.line_off = card->chan[ch].d.line_off;
+ /*
+ * Do this instead of passing dev->stats
+ * out so 32-bit userland on 64-bit
+ * kernel works.
+ */
+ cpc_net_stats_to_user(
+ &(dev->stats),
+ &(pc300stats.net_stats));
+ if (card->hw.type == PC300_TE) {
+ memcpy(&pc300stats.te_stats,
+ &chan->falc,
+ sizeof(falc_t));
+ }
+ if (
+ copy_to_user(
+ arg,
+ &pc300stats,
+ sizeof(pc300stats_t)
+ )
+ ) {
+ return -EFAULT;
}
- return 0;
}
+ return 0;

case SIOCGPC300UTILSTATUS:
{
@@ -2622,27 +3087,52 @@ static int cpc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)

pc300status.hw_type = card->hw.type;
if (card->hw.type == PC300_TE) {
- pc300status.te_status.sync = chan->falc.sync;
- pc300status.te_status.red_alarm = chan->falc.red_alarm;
- pc300status.te_status.blue_alarm = chan->falc.blue_alarm;
- pc300status.te_status.loss_fa = chan->falc.loss_fa;
- pc300status.te_status.yellow_alarm =chan->falc.yellow_alarm;
- pc300status.te_status.loss_mfa = chan->falc.loss_mfa;
- pc300status.te_status.prbs = chan->falc.prbs;
+ pc300status.te_status.sync =
+ chan->falc.sync;
+ pc300status.te_status.red_alarm =
+ chan->falc.red_alarm;
+ pc300status.te_status.blue_alarm =
+ chan->falc.blue_alarm;
+ pc300status.te_status.loss_fa =
+ chan->falc.loss_fa;
+ pc300status.te_status.yellow_alarm =
+ chan->falc.yellow_alarm;
+ pc300status.te_status.loss_mfa =
+ chan->falc.loss_mfa;
+ pc300status.te_status.prbs =
+ chan->falc.prbs;
} else {
pc300status.gen_status.dcd =
- !(cpc_readb (scabase + M_REG(ST3, ch)) & ST3_DCD);
+ !(cpc_readb(
+ scabase +
+ M_REG(ST3, ch)) &
+ ST3_DCD);
pc300status.gen_status.cts =
- !(cpc_readb (scabase + M_REG(ST3, ch)) & ST3_CTS);
+ !(cpc_readb(
+ scabase +
+ M_REG(ST3, ch)) &
+ ST3_CTS);
pc300status.gen_status.rts =
- !(cpc_readb (scabase + M_REG(CTL, ch)) & CTL_RTS);
+ !(cpc_readb(
+ scabase +
+ M_REG(CTL, ch)) &
+ CTL_RTS);
pc300status.gen_status.dtr =
- !(cpc_readb (scabase + M_REG(CTL, ch)) & CTL_DTR);
+ !(cpc_readb(
+ scabase +
+ M_REG(CTL, ch)) &
+ CTL_DTR);
/* There is no DSR in HD64572 */
}
if (!arg ||
- copy_to_user(arg, &pc300status, sizeof(pc300status_t)))
+ copy_to_user(
+ arg,
+ &pc300status,
+ sizeof(pc300status_t)
+ )
+ ) {
return -EINVAL;
+ }
return 0;
}

@@ -2661,8 +3151,11 @@ static int cpc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
return -EINVAL;

if (!arg ||
- copy_from_user(&pc300loop, arg, sizeof(pc300loopback_t)))
+ copy_from_user(&pc300loop,
+ arg,
+ sizeof(pc300loopback_t))) {
return -EINVAL;
+ }
switch (pc300loop.loop_type) {
case PC300LOCLOOP: /* Turn the local loop on/off */
falc_local_loop(card, ch, pc300loop.loop_on);
@@ -2712,19 +3205,39 @@ static int cpc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
}

if (!arg ||
- copy_from_user(&pc300patrntst,arg,sizeof(pc300patterntst_t)))
+ copy_from_user(
+ &pc300patrntst,
+ arg,
+ sizeof(
+ pc300patrntst
+ )
+ )
+ ) {
return -EINVAL;
+ }
if (pc300patrntst.patrntst_on == 2) {
if (chan->falc.prbs == 0) {
falc_pattern_test(card, ch, 1);
}
pc300patrntst.num_errors =
falc_pattern_test_error(card, ch);
- if (copy_to_user(arg, &pc300patrntst,
- sizeof(pc300patterntst_t)))
- return -EINVAL;
+ if (!arg ||
+ copy_to_user(
+ arg,
+ &pc300patrntst,
+ sizeof(
+ pc300patrntst
+ )
+ )) {
+ return -EINVAL;
+ }
} else {
- falc_pattern_test(card, ch, pc300patrntst.patrntst_on);
+ falc_pattern_test(
+ card,
+ ch,
+ pc300patrntst.
+ patrntst_on
+ );
}
return 0;
}
@@ -2813,6 +3326,16 @@ static int cpc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
}
}

+static struct net_device_stats *cpc_get_stats(struct net_device *dev)
+{
+ pc300dev_t *d = (pc300dev_t *) (dev_to_hdlc(dev))->priv;
+
+ if (d)
+ return &(dev->stats);
+ else
+ return NULL;
+}
+
static int clock_rate_calc(u32 rate, u32 clock, int *br_io)
{
int br, tc;
@@ -2842,13 +3365,13 @@ static int clock_rate_calc(u32 rate, u32 clock, int *br_io)
}
}

-static int ch_config(pc300dev_t * d)
+static int ch_config(pc300dev_t *d)
{
pc300ch_t *chan = (pc300ch_t *) d->chan;
pc300chconf_t *conf = (pc300chconf_t *) & chan->conf;
pc300_t *card = (pc300_t *) chan->card;
- void __iomem *scabase = card->hw.scabase;
- void __iomem *plxbase = card->hw.plxbase;
+ uintptr_t scabase = (uintptr_t)(card->hw.scabase);
+ uintptr_t plxbase = (uintptr_t)(card->hw.plxbase);
int ch = chan->channel;
u32 clkrate = chan->conf.phys_settings.clock_rate;
u32 clktype = chan->conf.phys_settings.clock_type;
@@ -2987,24 +3510,27 @@ static int ch_config(pc300dev_t * d)
IR0_DTX(IR0_EFT | IR0_DMIA | IR0_DMIB, ch));
cpc_writeb(scabase + M_REG(IE0, ch),
cpc_readl(scabase + M_REG(IE0, ch)) | IE0_RXINTA);
+
+ /* Was cpc_readl(), changed for unaligned access */
cpc_writeb(scabase + M_REG(IE1, ch),
- cpc_readl(scabase + M_REG(IE1, ch)) | IE1_CDCD);
+ cpc_readb(scabase + M_REG(IE1, ch)) | IE1_CDCD);

return 0;
}

-static int rx_config(pc300dev_t * d)
+static int rx_config(pc300dev_t *d)
{
pc300ch_t *chan = (pc300ch_t *) d->chan;
pc300_t *card = (pc300_t *) chan->card;
- void __iomem *scabase = card->hw.scabase;
+ uintptr_t scabase = (uintptr_t)(card->hw.scabase);
int ch = chan->channel;

cpc_writeb(scabase + DSR_RX(ch), 0);

/* General RX settings */
cpc_writeb(scabase + M_REG(RRC, ch), 0);
- cpc_writeb(scabase + M_REG(RNR, ch), 16);
+ cpc_writeb(scabase + M_REG(RNR, ch), 8);
+ cpc_writeb(scabase + M_REG(RCR, ch), 16);

/* Enable reception */
cpc_writeb(scabase + M_REG(CMD, ch), CMD_RX_CRC_INIT);
@@ -3024,21 +3550,21 @@ static int rx_config(pc300dev_t * d)
return 0;
}

-static int tx_config(pc300dev_t * d)
+static int tx_config(pc300dev_t *d)
{
pc300ch_t *chan = (pc300ch_t *) d->chan;
pc300_t *card = (pc300_t *) chan->card;
- void __iomem *scabase = card->hw.scabase;
+ uintptr_t scabase = (uintptr_t)(card->hw.scabase);
int ch = chan->channel;

cpc_writeb(scabase + DSR_TX(ch), 0);

/* General TX settings */
cpc_writeb(scabase + M_REG(TRC0, ch), 0);
- cpc_writeb(scabase + M_REG(TFS, ch), 32);
- cpc_writeb(scabase + M_REG(TNR0, ch), 20);
- cpc_writeb(scabase + M_REG(TNR1, ch), 48);
- cpc_writeb(scabase + M_REG(TCR, ch), 8);
+ cpc_writeb(scabase + M_REG(TFS, ch), 0x3c);
+ cpc_writeb(scabase + M_REG(TNR0, ch), 0x38);
+ cpc_writeb(scabase + M_REG(TNR1, ch), 0x3f);
+ cpc_writeb(scabase + M_REG(TCR, ch), 0x38);

/* Enable transmission */
cpc_writeb(scabase + M_REG(CMD, ch), CMD_TX_CRC_INIT);
@@ -3056,9 +3582,11 @@ static int tx_config(pc300dev_t * d)
return 0;
}

-static int cpc_attach(struct net_device *dev, unsigned short encoding,
- unsigned short parity)
-{
+static int cpc_attach(
+ struct net_device *dev,
+ unsigned short encoding,
+ unsigned short parity
+ ) {
pc300dev_t *d = (pc300dev_t *)dev_to_hdlc(dev)->priv;
pc300ch_t *chan = (pc300ch_t *)d->chan;
pc300_t *card = (pc300_t *)chan->card;
@@ -3087,12 +3615,12 @@ static int cpc_attach(struct net_device *dev, unsigned short encoding,
return 0;
}

-static int cpc_opench(pc300dev_t * d)
+static int cpc_opench(pc300dev_t *d)
{
pc300ch_t *chan = (pc300ch_t *) d->chan;
pc300_t *card = (pc300_t *) chan->card;
int ch = chan->channel, rc;
- void __iomem *scabase = card->hw.scabase;
+ uintptr_t scabase = (uintptr_t)(card->hw.scabase);

rc = ch_config(d);
if (rc)
@@ -3109,7 +3637,7 @@ static int cpc_opench(pc300dev_t * d)
return 0;
}

-static void cpc_closech(pc300dev_t * d)
+static void cpc_closech(pc300dev_t *d)
{
pc300ch_t *chan = (pc300ch_t *) d->chan;
pc300_t *card = (pc300_t *) chan->card;
@@ -3140,15 +3668,18 @@ static void cpc_closech(pc300dev_t * d)
int cpc_open(struct net_device *dev)
{
pc300dev_t *d = (pc300dev_t *) dev_to_hdlc(dev)->priv;
+ pc300ch_t *chan = (pc300ch_t *) d->chan;
+ int ch = chan->channel;
+ pc300_t *card = (pc300_t *) chan->card;
struct ifreq ifr;
int result;
+ uintptr_t scabase = (uintptr_t)(card->hw.scabase);

#ifdef PC300_DEBUG_OTHER
- printk("pc300: cpc_open");
+ printk(KERN_DEBUG "pc300: cpc_open\n");
#endif

result = hdlc_open(dev);
-
if (result)
return result;

@@ -3157,7 +3688,15 @@ int cpc_open(struct net_device *dev)
if (result)
goto err_out;

+#ifdef PC300_DEBUG_QUEUE
+ printk(KERN_DEBUG "%s: starting queue for open\n", dev->name);
+#endif
netif_start_queue(dev);
+ if (cpc_readb(scabase + M_REG(ST3, ch)) & ST3_DCD)
+ netif_carrier_off(dev);
+ else
+ netif_carrier_on(dev);
+
return 0;

err_out:
@@ -3173,9 +3712,13 @@ static int cpc_close(struct net_device *dev)
unsigned long flags;

#ifdef PC300_DEBUG_OTHER
- printk("pc300: cpc_close");
+ printk(KERN_DEBUG "pc300: cpc_close\n");
+#endif
+#ifdef PC300_DEBUG_QUEUE
+ printk(KERN_DEBUG "%s: stopping queue\n", dev->name);
#endif

+ d->reason_stopped = CHANNEL_CLOSED;
netif_stop_queue(dev);

CPC_LOCK(card, flags);
@@ -3183,7 +3726,6 @@ static int cpc_close(struct net_device *dev)
CPC_UNLOCK(card, flags);

hdlc_close(dev);
-
#ifdef CONFIG_PC300_MLPPP
if (chan->conf.proto == PC300_PROTO_MLPPP) {
cpc_tty_unregister_service(d);
@@ -3194,11 +3736,11 @@ static int cpc_close(struct net_device *dev)
return 0;
}

-static u32 detect_ram(pc300_t * card)
+static u32 detect_ram(pc300_t *card)
{
u32 i;
u8 data;
- void __iomem *rambase = card->hw.rambase;
+ uintptr_t rambase = (uintptr_t)(card->hw.rambase);

card->hw.ramsize = PC300_RAMSIZE;
/* Let's find out how much RAM is present on this board */
@@ -3212,9 +3754,10 @@ static u32 detect_ram(pc300_t * card)
return i;
}

-static void plx_init(pc300_t * card)
+static void plx_init(pc300_t *card)
{
- struct RUNTIME_9050 __iomem *plx_ctl = card->hw.plxbase;
+ struct RUNTIME_9050 __iomem *plx_ctl =
+ (struct RUNTIME_9050 __iomem *) card->hw.plxbase;

/* Reset PLX */
cpc_writel(&plx_ctl->init_ctrl,
@@ -3244,20 +3787,11 @@ static inline void show_version(void)
rcsdate++;
tmp = strrchr(rcsdate, ' ');
*tmp = '\0';
- pr_info("Cyclades-PC300 driver %s %s\n", rcsvers, rcsdate);
+ printk(KERN_INFO "Cyclades-PC300 driver %s %s (built %s %s)\n",
+ rcsvers, rcsdate, __DATE__, __TIME__);
} /* show_version */

-static const struct net_device_ops cpc_netdev_ops = {
- .ndo_open = cpc_open,
- .ndo_stop = cpc_close,
- .ndo_tx_timeout = cpc_tx_timeout,
- .ndo_set_mac_address = NULL,
- .ndo_change_mtu = cpc_change_mtu,
- .ndo_do_ioctl = cpc_ioctl,
- .ndo_validate_addr = eth_validate_addr,
-};
-
-static void cpc_init_card(pc300_t * card)
+static void cpc_init_card(pc300_t *card)
{
int i, devcount = 0;
static int board_nbr = 1;
@@ -3346,6 +3880,7 @@ static void cpc_init_card(pc300_t * card)
break;
}
chan->conf.proto = IF_PROTO_PPP;
+ chan->conf.monitor = 0;
chan->tx_first_bd = 0;
chan->tx_next_bd = 0;
chan->rx_first_bd = 0;
@@ -3353,6 +3888,7 @@ static void cpc_init_card(pc300_t * card)
chan->nfree_tx_bd = N_DMA_TX_BUF;

d->chan = chan;
+ d->tx_skb = NULL;
d->trace_on = 0;
d->line_on = 0;
d->line_off = 0;
@@ -3361,47 +3897,67 @@ static void cpc_init_card(pc300_t * card)
if (dev == NULL)
continue;

- hdlc = dev_to_hdlc(dev);
- hdlc->xmit = cpc_queue_xmit;
- hdlc->attach = cpc_attach;
- d->dev = dev;
dev->mem_start = card->hw.ramphys;
dev->mem_end = card->hw.ramphys + card->hw.ramsize - 1;
dev->irq = card->hw.irq;
dev->tx_queue_len = PC300_TX_QUEUE_LEN;
dev->mtu = PC300_DEF_MTU;
-
- dev->netdev_ops = &cpc_netdev_ops;
+ dev->netdev_ops = &pc300_netdev_ops;
dev->watchdog_timeo = PC300_TX_TIMEOUT;

+ hdlc = dev_to_hdlc(dev);
+ hdlc->xmit = cpc_queue_xmit;
+ hdlc->attach = cpc_attach;
+ d->hdlc = hdlc;
+
+ d->netdev = dev;
+ d->reason_stopped = CHANNEL_CLOSED;
+
if (register_hdlc_device(dev) == 0) {
- printk("%s: Cyclades-PC300/", dev->name);
+ printk(KERN_INFO
+ "%s: Cyclades-PC300/",
+ dev->name);
switch (card->hw.type) {
case PC300_TE:
if (card->hw.bus == PC300_PMC) {
- printk("TE-M");
+ printk(KERN_INFO "TE-M");
} else {
- printk("TE ");
+ printk(KERN_INFO "TE ");
}
break;

case PC300_X21:
- printk("X21 ");
+ printk(KERN_INFO "X21 ");
break;

case PC300_RSV:
default:
- printk("RSV ");
+ printk(KERN_INFO "RSV ");
break;
}
- printk (" #%d, %dKB of RAM at 0x%08x, IRQ%d, channel %d.\n",
- board_nbr, card->hw.ramsize / 1024,
- card->hw.ramphys, card->hw.irq, i + 1);
+#ifdef CONFIG_PHYS_ADDR_T_64BIT
+ printk(KERN_INFO " #%d, %dKB of RAM at 0x%016lx, IRQ %d, channel %d.\n",
+ board_nbr, card->hw.ramsize / 1024,
+ (unsigned long)(card->hw.ramphys),
+ card->hw.irq, i + 1);
+#else /* !CONFIG_PHYS_ADDR_T_64BIT */
+ printk(KERN_INFO " #%d, %dKB of RAM at 0x%08x, IRQ %d, channel %d.\n",
+ board_nbr, card->hw.ramsize / 1024,
+ (unsigned int)(card->hw.ramphys),
+ card->hw.irq, i + 1);
+#endif /* CONFIG_PHYS_ADDR_T_64BIT */
+
devcount++;
} else {
- printk ("Dev%d on card(0x%08x): unable to allocate i/f name.\n",
- i + 1, card->hw.ramphys);
- free_netdev(dev);
+#ifdef CONFIG_PHYS_ADDR_T_64BIT
+ printk(KERN_ERR "Dev %d on card(0x%016lx): unable to allocate i/f name.\n",
+ i + 1, (unsigned long)(card->hw.ramphys));
+#else /* !CONFIG_PHYS_ADDR_T_64BIT */
+ printk(KERN_ERR "Dev %d on card(0x%08x): unable to allocate i/f name.\n",
+ i + 1, (unsigned int)(card->hw.ramphys));
+#endif /* CONFIG_PHYS_ADDR_T_64BIT */
+ *(dev->name) = 0;
+ kfree(d->hdlc);
continue;
}
}
@@ -3414,7 +3970,10 @@ static int __devinit
cpc_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
{
static int first_time = 1;
- int err, eeprom_outdated = 0;
+#ifdef PC300_DEBUG_PCI
+ u8 cpc_rev_id;
+#endif
+ int err = 0, eeprom_outdated = 0;
u16 device_id;
pc300_t *card;

@@ -3426,20 +3985,18 @@ cpc_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
#endif
}

- if ((err = pci_enable_device(pdev)) < 0)
- return err;
-
card = kzalloc(sizeof(pc300_t), GFP_KERNEL);
if (card == NULL) {
- printk("PC300 found at RAM 0x%016llx, "
- "but could not allocate card structure.\n",
- (unsigned long long)pci_resource_start(pdev, 3));
- err = -ENOMEM;
- goto err_disable_dev;
+#ifdef CONFIG_PHYS_ADDR_T_64BIT
+ printk(KERN_ERR "PC300 found at RAM 0x%016lx, but could not allocate card structure.\n",
+ (unsigned long)(pci_resource_start(pdev, 3)));
+#else /* !CONFIG_PHYS_ADDR_T_64BIT */
+ printk(KERN_ERR "PC300 found at RAM 0x%08x, but could not allocate card structure.\n",
+ (unsigned int)(pci_resource_start(pdev, 3)));
+#endif /* CONFIG_PHYS_ADDR_T_64BIT */
+ return -ENOMEM;
}

- err = -ENODEV;
-
/* read PCI configuration area */
device_id = ent->device;
card->hw.irq = pdev->irq;
@@ -3453,6 +4010,9 @@ cpc_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
card->hw.falcsize = pci_resource_len(pdev, 4);
card->hw.plxphys = pci_resource_start(pdev, 5);
card->hw.plxsize = pci_resource_len(pdev, 5);
+#ifdef PC300_DEBUG_PCI
+ pci_read_config_byte(pdev, PCI_REVISION_ID, &cpc_rev_id);
+#endif

switch (device_id) {
case PCI_DEVICE_ID_PC300_RX_1:
@@ -3469,20 +4029,46 @@ cpc_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
break;
}
#ifdef PC300_DEBUG_PCI
- printk("cpc (bus=0x0%x,pci_id=0x%x,", pdev->bus->number, pdev->devfn);
- printk("rev_id=%d) IRQ%d\n", pdev->revision, card->hw.irq);
- printk("cpc:found ramaddr=0x%08lx plxaddr=0x%08lx "
- "ctladdr=0x%08lx falcaddr=0x%08lx\n",
- card->hw.ramphys, card->hw.plxphys, card->hw.scaphys,
- card->hw.falcphys);
+ printk(KERN_DEBUG
+ "cpc (bus=0x0%x,pci_id=0x%x,",
+ pdev->bus->number, pdev->devfn);
+ printk(KERN_DEBUG
+ "rev_id=%d) IRQ%d\n",
+ pdev->revision, card->hw.irq);
+#ifdef CONFIG_PHYS_ADDR_T_64BIT
+ printk(KERN_INFO
+ "cpc:found ramaddr=0x%016lx plxaddr=0x%016lx "
+ "ctladdr=0x%016lx falcaddr=0x%016lx\n",
+ (unsigned long)(card->hw.ramphys),
+ (unsigned long)(card->hw.plxphys),
+ (unsigned long)(card->hw.scaphys),
+ (unsigned long)(card->hw.falcphys));
+#else /* !CONFIG_PHYS_ADDR_T_64BIT */
+ printk(KERN_INFO
+ "cpc:found ramaddr=0x%08x plxaddr=0x%08x "
+ "ctladdr=0x%08x falcaddr=0x%08x\n",
+ (unsigned int)(card->hw.ramphys),
+ (unsigned int)(card->hw.plxphys),
+ (unsigned int)(card->hw.scaphys),
+ (unsigned int)(card->hw.falcphys));
+#endif /* CONFIG_PHYS_ADDR_T_64BIT */
#endif
/* Although we don't use this I/O region, we should
* request it from the kernel anyway, to avoid problems
* with other drivers accessing it. */
if (!request_region(card->hw.iophys, card->hw.iosize, "PLX Registers")) {
/* In case we can't allocate it, warn user */
- printk("WARNING: couldn't allocate I/O region for PC300 board "
- "at 0x%08x!\n", card->hw.ramphys);
+#ifdef CONFIG_PHYS_ADDR_T_64BIT
+ printk(KERN_ERR
+ "WARNING: couldn't allocate I/O region for PC300 board "
+ "at 0x%016lx!\n",
+ (unsigned long)(card->hw.ramphys));
+#else /* !CONFIG_PHYS_ADDR_T_64BIT */
+ printk(KERN_ERR
+ "WARNING: couldn't allocate I/O region for PC300 board "
+ "at 0x%08x!\n",
+ (unsigned int)(card->hw.ramphys));
+#endif
}

if (card->hw.plxphys) {
@@ -3495,29 +4081,63 @@ cpc_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)

if (!request_mem_region(card->hw.plxphys, card->hw.plxsize,
"PLX Registers")) {
- printk("PC300 found at RAM 0x%08x, "
+#ifdef CONFIG_PHYS_ADDR_T_64BIT
+ printk(KERN_ERR
+ "PC300 found at RAM 0x%016lx, "
"but could not allocate PLX mem region.\n",
- card->hw.ramphys);
+ (unsigned long)(card->hw.ramphys));
+#else /* !CONFIG_PHYS_ADDR_T_64BIT */
+ printk(KERN_ERR
+ "PC300 found at RAM 0x%08x, "
+ "but could not allocate PLX mem region.\n",
+ (unsigned int)(card->hw.ramphys));
+#endif /* CONFIG_PHYS_ADDR_T_64BIT */
+ err = -ENODEV;
goto err_release_io;
}
if (!request_mem_region(card->hw.ramphys, card->hw.alloc_ramsize,
"On-board RAM")) {
- printk("PC300 found at RAM 0x%08x, "
- "but could not allocate RAM mem region.\n",
- card->hw.ramphys);
+#ifdef CONFIG_PHYS_ADDR_T_64BIT
+ printk(KERN_ERR
+ "PC300 found at RAM 0x%016lx, "
+ "but could not allocate SCA mem region.\n",
+ (unsigned long)(card->hw.ramphys));
+#else /* !CONFIG_PHYS_ADDR_T_64BIT */
+ printk(KERN_ERR
+ "PC300 found at RAM 0x%08x, "
+ "but could not allocate RAM mem region.\n",
+ (unsigned int)(card->hw.ramphys));
+#endif /* CONFIG_PHYS_ADDR_T_64BIT */
+ err = -ENODEV;
goto err_release_plx;
}
if (!request_mem_region(card->hw.scaphys, card->hw.scasize,
"SCA-II Registers")) {
- printk("PC300 found at RAM 0x%08x, "
+#ifdef CONFIG_PHYS_ADDR_T_64BIT
+ printk(KERN_ERR
+ "PC300 found at RAM 0x%016lx, "
+ "but could not allocate SCA mem region.\n",
+ (unsigned long)(card->hw.ramphys));
+#else /* !CONFIG_PHYS_ADDR_T_64BIT */
+ printk(KERN_ERR
+ "PC300 found at RAM 0x%08x, "
"but could not allocate SCA mem region.\n",
- card->hw.ramphys);
+ (unsigned int)(card->hw.ramphys));
+#endif /* CONFIG_PHYS_ADDR_T_64BIT */
+ err = -ENODEV;
goto err_release_ram;
}

- card->hw.plxbase = ioremap(card->hw.plxphys, card->hw.plxsize);
- card->hw.rambase = ioremap(card->hw.ramphys, card->hw.alloc_ramsize);
- card->hw.scabase = ioremap(card->hw.scaphys, card->hw.scasize);
+ err = pci_enable_device(pdev);
+ if (err != 0)
+ goto err_release_sca;
+
+ card->hw.plxbase =
+ (void __iomem *) ioremap(card->hw.plxphys, card->hw.plxsize);
+ card->hw.rambase = (void __iomem *) ioremap(card->hw.ramphys,
+ card->hw.alloc_ramsize);
+ card->hw.scabase =
+ (void __iomem *) ioremap(card->hw.scaphys, card->hw.scasize);
switch (device_id) {
case PCI_DEVICE_ID_PC300_TE_1:
case PCI_DEVICE_ID_PC300_TE_2:
@@ -3525,7 +4145,9 @@ cpc_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
case PCI_DEVICE_ID_PC300_TE_M_2:
request_mem_region(card->hw.falcphys, card->hw.falcsize,
"FALC Registers");
- card->hw.falcbase = ioremap(card->hw.falcphys, card->hw.falcsize);
+ card->hw.falcbase =
+ (void __iomem *) ioremap(card->hw.falcphys,
+ card->hw.falcsize);
break;

case PCI_DEVICE_ID_PC300_RX_1:
@@ -3536,10 +4158,23 @@ cpc_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
}

#ifdef PC300_DEBUG_PCI
- printk("cpc: relocate ramaddr=0x%08lx plxaddr=0x%08lx "
- "ctladdr=0x%08lx falcaddr=0x%08lx\n",
- card->hw.rambase, card->hw.plxbase, card->hw.scabase,
- card->hw.falcbase);
+#ifdef CONFIG_64BIT
+ printk(KERN_DEBUG
+ "cpc: relocate ramaddr=0x%016lx plxaddr=0x%016lx "
+ "ctladdr=0x%016lx falcaddr=0x%016lx\n",
+ (unsigned long)(card->hw.rambase),
+ (unsigned long)(card->hw.plxbase),
+ (unsigned long)(card->hw.scabase),
+ (unsigned long)(card->hw.falcbase));
+#else /* !CONFIG_64BIT */
+ printk(KERN_DEBUG
+ "cpc: relocate ramaddr=0x%08x plxaddr=0x%08x "
+ "ctladdr=0x%08x falcaddr=0x%08x\n",
+ (unsigned int)(card->hw.rambase),
+ (unsigned int)(card->hw.plxbase),
+ (unsigned int)(card->hw.scabase),
+ (unsigned int)(card->hw.falcbase));
+#endif /* CONFIG_64BIT */
#endif

/* Set PCI drv pointer to the card structure */
@@ -3584,16 +4219,36 @@ cpc_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
}

/* Allocate IRQ */
- if (request_irq(card->hw.irq, cpc_intr, IRQF_SHARED, "Cyclades-PC300", card)) {
- printk ("PC300 found at RAM 0x%08x, but could not allocate IRQ%d.\n",
- card->hw.ramphys, card->hw.irq);
+ if (
+ request_irq(
+ card->hw.irq,
+ cpc_intr,
+ IRQF_SHARED,
+ "Cyclades-PC300",
+ card)
+ ) {
+#ifdef CONFIG_PHYS_ADDR_T_64BIT
+ printk(KERN_ERR
+ "PC300 found at RAM 0x%016lx, but could not allocate "
+ "IRQ%d.\n", (unsigned long)(card->hw.ramphys),
+ card->hw.irq);
+#else /* !CONFIG_PHYS_ADDR_T_64BIT */
+ printk(KERN_ERR
+ "PC300 found at RAM 0x%08x, but could not allocate "
+ "IRQ%d.\n", (unsigned int)(card->hw.ramphys),
+ card->hw.irq);
+#endif /* CONFIG_PHYS_ADDR_T_64BIT */
+ printk(KERN_ERR
+ "PC300 found at RAM 0x%08lx, but could not allocate IRQ%d.\n",
+ card->hw.ramphys, card->hw.irq);
goto err_io_unmap;
}

cpc_init_card(card);

if (eeprom_outdated)
- printk("WARNING: PC300 with outdated EEPROM.\n");
+ printk(KERN_WARNING "WARNING: PC300 with outdated EEPROM.\n");
+
return 0;

err_io_unmap:
@@ -3604,6 +4259,7 @@ err_io_unmap:
iounmap(card->hw.falcbase);
release_mem_region(card->hw.falcphys, card->hw.falcsize);
}
+err_release_sca:
release_mem_region(card->hw.scaphys, card->hw.scasize);
err_release_ram:
release_mem_region(card->hw.ramphys, card->hw.alloc_ramsize);
@@ -3612,16 +4268,14 @@ err_release_plx:
err_release_io:
release_region(card->hw.iophys, card->hw.iosize);
kfree(card);
-err_disable_dev:
- pci_disable_device(pdev);
- return err;
+ return -ENODEV;
}

static void __devexit cpc_remove_one(struct pci_dev *pdev)
{
pc300_t *card = pci_get_drvdata(pdev);

- if (card->hw.rambase) {
+ if (card->hw.rambase != 0) {
int i;

/* Disable interrupts on the PCI bridge */
@@ -3629,7 +4283,8 @@ static void __devexit cpc_remove_one(struct pci_dev *pdev)
cpc_readw(card->hw.plxbase + card->hw.intctl_reg) & ~(0x0040));

for (i = 0; i < card->hw.nchan; i++) {
- unregister_hdlc_device(card->chan[i].d.dev);
+ unregister_hdlc_device(card->chan[i].d.netdev);
+ free_netdev(card->chan[i].d.netdev);
}
iounmap(card->hw.plxbase);
iounmap(card->hw.scabase);
@@ -3642,13 +4297,9 @@ static void __devexit cpc_remove_one(struct pci_dev *pdev)
iounmap(card->hw.falcbase);
release_mem_region(card->hw.falcphys, card->hw.falcsize);
}
- for (i = 0; i < card->hw.nchan; i++)
- if (card->chan[i].d.dev)
- free_netdev(card->chan[i].d.dev);
if (card->hw.irq)
free_irq(card->hw.irq, card);
kfree(card);
- pci_disable_device(pdev);
}
}

diff --git a/drivers/net/wan/pc300_tty.c b/drivers/net/wan/pc300_tty.c
index d47d2cd..56a7161 100644
--- a/drivers/net/wan/pc300_tty.c
+++ b/drivers/net/wan/pc300_tty.c
@@ -3,7 +3,7 @@
*
* Author: Regina Kodato <reginak@cyclades.com>
*
- * Copyright: (c) 1999-2002 Cyclades Corp.
+ * Copyright: (c) 1999-2004 Cyclades Corp.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
@@ -50,6 +50,7 @@
#include <linux/tty.h>
#include <linux/tty_flip.h>
#include <linux/serial.h>
+#include <linux/workqueue.h>

#include <asm/io.h>
#include <asm/uaccess.h>
@@ -79,7 +80,7 @@
spin_unlock_irqrestore(&card->card_lock, flags); \
} while (0)

-//#define CPC_TTY_DBG(format,a...) printk(format,##a)
+/* #define CPC_TTY_DBG(format,a...) printk(KERN_DEBUG format,##a) */
#define CPC_TTY_DBG(format,a...)

/* data structures */
@@ -113,13 +114,16 @@ static struct tty_driver serial_drv;
/* local variables */
static st_cpc_tty_area cpc_tty_area[CPC_TTY_NPORTS];

-static int cpc_tty_cnt = 0; /* number of intrfaces configured with MLPPP */
-static int cpc_tty_unreg_flag = 0;
+static int cpc_tty_cnt; /* number of intrfaces configured with MLPPP */
+static int cpc_tty_unreg_flag;

/* TTY functions prototype */
static int cpc_tty_open(struct tty_struct *tty, struct file *flip);
static void cpc_tty_close(struct tty_struct *tty, struct file *flip);
-static int cpc_tty_write(struct tty_struct *tty, const unsigned char *buf, int count);
+static int cpc_tty_write(
+ struct tty_struct *tty,
+ const unsigned char *buf,
+ int count);
static int cpc_tty_write_room(struct tty_struct *tty);
static int cpc_tty_chars_in_buffer(struct tty_struct *tty);
static void cpc_tty_flush_buffer(struct tty_struct *tty);
@@ -152,11 +156,16 @@ static void cpc_tty_signal_off(pc300dev_t *pc300dev, unsigned char signal)
unsigned long flags;

CPC_TTY_DBG("%s-tty: Clear signal %x\n",
- pc300dev->dev->name, signal);
- CPC_TTY_LOCK(card, flags);
- cpc_writeb(card->hw.scabase + M_REG(CTL,ch),
- cpc_readb(card->hw.scabase+M_REG(CTL,ch))& signal);
- CPC_TTY_UNLOCK(card,flags);
+ pc300dev->netdev->name,
+ signal);
+ CPC_TTY_LOCK(card, flags);
+ cpc_writeb(
+ card->hw.scabase + M_REG(CTL, ch),
+ cpc_readb(
+ card->hw.scabase +
+ M_REG(CTL, ch)) &
+ signal);
+ CPC_TTY_UNLOCK(card, flags);
}

/*
@@ -170,7 +179,8 @@ static void cpc_tty_signal_on(pc300dev_t *pc300dev, unsigned char signal)
unsigned long flags;

CPC_TTY_DBG("%s-tty: Set signal %x\n",
- pc300dev->dev->name, signal);
+ pc300dev->netdev->name,
+ signal);
CPC_TTY_LOCK(card, flags);
cpc_writeb(card->hw.scabase + M_REG(CTL,ch),
cpc_readb(card->hw.scabase+M_REG(CTL,ch))& ~signal);
@@ -203,22 +213,24 @@ static const struct tty_operations pc300_ops = {
*/
void cpc_tty_init(pc300dev_t *pc300dev)
{
- unsigned long port;
int aux;
- st_cpc_tty_area * cpc_tty;
+ long port;
+ st_cpc_tty_area *cpc_tty;

/* hdlcX - X=interface number */
- port = pc300dev->dev->name[4] - '0';
+ port = pc300dev->netdev->name[4] - '0';
if (port >= CPC_TTY_NPORTS) {
- printk("%s-tty: invalid interface selected (0-%i): %li",
- pc300dev->dev->name,
- CPC_TTY_NPORTS-1,port);
+ printk(KERN_ERR
+ "%s-tty: invalid interface selected (0-%i): %li",
+ pc300dev->netdev->name,
+ CPC_TTY_NPORTS - 1,
+ port);
return;
}

if (cpc_tty_cnt == 0) { /* first TTY connection -> register driver */
CPC_TTY_DBG("%s-tty: driver init, major:%i, minor range:%i=%i\n",
- pc300dev->dev->name,
+ pc300dev->netdev->name,
CPC_TTY_MAJOR, CPC_TTY_MINOR_START,
CPC_TTY_MINOR_START+CPC_TTY_NPORTS);
/* initialize tty driver struct */
@@ -241,11 +253,12 @@ void cpc_tty_init(pc300dev_t *pc300dev)
tty_set_operations(&serial_drv, &pc300_ops);

/* register the TTY driver */
- if (tty_register_driver(&serial_drv)) {
- printk("%s-tty: Failed to register serial driver! ",
- pc300dev->dev->name);
+ if (tty_register_driver(&serial_drv)) {
+ printk(KERN_ERR
+ "%s-tty: Failed to register serial driver! ",
+ pc300dev->netdev->name);
return;
- }
+ }

memset((void *)cpc_tty_area, 0,
sizeof(st_cpc_tty_area) * CPC_TTY_NPORTS);
@@ -254,8 +267,10 @@ void cpc_tty_init(pc300dev_t *pc300dev)
cpc_tty = &cpc_tty_area[port];

if (cpc_tty->state != CPC_TTY_ST_IDLE) {
- CPC_TTY_DBG("%s-tty: TTY port %i, already in use.\n",
- pc300dev->dev->name, port);
+ CPC_TTY_DBG(
+ "%s-tty: TTY port %i, already in use.\n",
+ pc300dev->netdev->name,
+ port);
return;
}

@@ -268,15 +283,15 @@ void cpc_tty_init(pc300dev_t *pc300dev)
INIT_WORK(&cpc_tty->tty_tx_work, cpc_tty_tx_work);
INIT_WORK(&cpc_tty->tty_rx_work, cpc_tty_rx_work);

- cpc_tty->buf_rx.first = cpc_tty->buf_rx.last = NULL;
+ cpc_tty->buf_rx.first = cpc_tty->buf_rx.last = 0;

pc300dev->cpc_tty = (void *)cpc_tty;

- aux = strlen(pc300dev->dev->name);
- memcpy(cpc_tty->name, pc300dev->dev->name, aux);
+ aux = strlen(pc300dev->netdev->name);
+ memcpy(cpc_tty->name, pc300dev->netdev->name, aux);
memcpy(&cpc_tty->name[aux], "-tty", 5);

- cpc_open(pc300dev->dev);
+ cpc_open(pc300dev->netdev);
cpc_tty_signal_off(pc300dev, CTL_DTR);

CPC_TTY_DBG("%s: Initializing TTY Sync Driver, tty major#%d minor#%i\n",
@@ -316,9 +331,9 @@ static int cpc_tty_open(struct tty_struct *tty, struct file *flip)
}

if (cpc_tty->num_open == 0) { /* first open of this tty */
- if (!cpc_tty_area[port].buf_tx){
+ if (cpc_tty_area[port].buf_tx == 0) {
cpc_tty_area[port].buf_tx = kmalloc(CPC_TTY_MAX_MTU,GFP_KERNEL);
- if (!cpc_tty_area[port].buf_tx) {
+ if (cpc_tty_area[port].buf_tx == 0) {
CPC_TTY_DBG("%s: error in memory allocation\n",cpc_tty->name);
return -ENOMEM;
}
@@ -360,7 +375,7 @@ static int cpc_tty_open(struct tty_struct *tty, struct file *flip)

static void cpc_tty_close(struct tty_struct *tty, struct file *flip)
{
- st_cpc_tty_area *cpc_tty;
+ st_cpc_tty_area *cpc_tty;
unsigned long flags;
int res;

@@ -407,9 +422,9 @@ static void cpc_tty_close(struct tty_struct *tty, struct file *flip)
kfree(cpc_tty->buf_tx);
cpc_tty->buf_tx = NULL;

- CPC_TTY_DBG("%s: TTY closed\n",cpc_tty->name);
+ CPC_TTY_DBG("%s: TTY closed\n", cpc_tty->name);

- if (!serial_drv.refcount && cpc_tty_unreg_flag) {
+ if (!cpc_tty_cnt && cpc_tty_unreg_flag) {
cpc_tty_unreg_flag = 0;
CPC_TTY_DBG("%s: unregister the tty driver\n", cpc_tty->name);
if ((res=tty_unregister_driver(&serial_drv))) {
@@ -428,14 +443,16 @@ static void cpc_tty_close(struct tty_struct *tty, struct file *flip)
* o verify the DCD signal
* o send characters to board and start the transmission
*/
-static int cpc_tty_write(struct tty_struct *tty, const unsigned char *buf, int count)
+static int cpc_tty_write(struct tty_struct *tty,
+ const unsigned char *buf, int count)
{
- st_cpc_tty_area *cpc_tty;
+ st_cpc_tty_area *cpc_tty;
pc300ch_t *pc300chan;
pc300_t *card;
int ch;
unsigned long flags;
struct net_device_stats *stats;
+ int from_user = 1;

if (!tty || !tty->driver_data ) {
CPC_TTY_DBG("hdlcX-tty: no TTY in write\n");
@@ -454,10 +471,14 @@ static int cpc_tty_write(struct tty_struct *tty, const unsigned char *buf, int c
return -EINVAL; /* frame too big */
}

- CPC_TTY_DBG("%s: cpc_tty_write data len=%i\n",cpc_tty->name,count);
+ CPC_TTY_DBG(
+ "%s: cpc_tty_write %s data len=%i\n",
+ cpc_tty->name,
+ (from_user) ? "from user" : "from kernel",
+ count);

pc300chan = (pc300ch_t *)((pc300dev_t*)cpc_tty->pc300dev)->chan;
- stats = &cpc_tty->pc300dev->dev->stats;
+ stats = &(cpc_tty->pc300dev->netdev->stats);
card = (pc300_t *) pc300chan->card;
ch = pc300chan->channel;

@@ -481,11 +502,35 @@ static int cpc_tty_write(struct tty_struct *tty, const unsigned char *buf, int c
return -EINVAL;
}

- if (cpc_tty_send_to_card(cpc_tty->pc300dev, (void*)buf, count)) {
- /* failed to send */
- CPC_TTY_DBG("%s: trasmition error\n", cpc_tty->name);
- return 0;
+ if (from_user) {
+ unsigned char *buf_tmp;
+
+ buf_tmp = cpc_tty->buf_tx;
+ if (copy_from_user(buf_tmp, buf, count)) {
+ /* failed to copy from user */
+ CPC_TTY_DBG("%s: error in copy from user\n",
+ cpc_tty->name);
+ return -EINVAL;
+ }
+
+ if (cpc_tty_send_to_card(cpc_tty->pc300dev,
+ (void *)buf_tmp, count)) {
+ /* failed to send */
+ CPC_TTY_DBG("%s: transmission error\n", cpc_tty->name);
+ return 0;
+ }
+ } else {
+ if (
+ cpc_tty_send_to_card(cpc_tty->pc300dev,
+ (void *)buf,
+ count)
+ ) {
+ /* failed to send */
+ CPC_TTY_DBG("%s: transmission error\n", cpc_tty->name);
+ return 0;
+ }
}
+
return count;
}

@@ -498,7 +543,7 @@ static int cpc_tty_write(struct tty_struct *tty, const unsigned char *buf, int c
*/
static int cpc_tty_write_room(struct tty_struct *tty)
{
- st_cpc_tty_area *cpc_tty;
+ st_cpc_tty_area *cpc_tty;

if (!tty || !tty->driver_data ) {
CPC_TTY_DBG("hdlcX-tty: no TTY to write room\n");
@@ -525,7 +570,7 @@ static int cpc_tty_write_room(struct tty_struct *tty)
*/
static int cpc_tty_chars_in_buffer(struct tty_struct *tty)
{
- st_cpc_tty_area *cpc_tty;
+ st_cpc_tty_area *cpc_tty;

if (!tty || !tty->driver_data ) {
CPC_TTY_DBG("hdlcX-tty: no TTY to chars in buffer\n");
@@ -542,10 +587,12 @@ static int cpc_tty_chars_in_buffer(struct tty_struct *tty)
return 0;
}

-static int pc300_tiocmset(struct tty_struct *tty,
- unsigned int set, unsigned int clear)
+static int pc300_tiocmset(
+ struct tty_struct *tty,
+ unsigned int set,
+ unsigned int clear)
{
- st_cpc_tty_area *cpc_tty;
+ st_cpc_tty_area *cpc_tty;

CPC_TTY_DBG("%s: set:%x clear:%x\n", __func__, set, clear);

@@ -582,8 +629,9 @@ static int pc300_tiocmget(struct tty_struct *tty)

cpc_tty = (st_cpc_tty_area *) tty->driver_data;

- CPC_TTY_DBG("%s-tty: tiocmget\n",
- ((struct net_device*)(pc300dev->hdlc))->name);
+ CPC_TTY_DBG(
+ "%s-tty: tiocmget\n",
+ pc300dev->netdev->name);

CPC_TTY_LOCK(card, flags);
status = cpc_readb(card->hw.scabase+M_REG(CTL,ch));
@@ -602,7 +650,7 @@ static int pc300_tiocmget(struct tty_struct *tty)
*/
static void cpc_tty_flush_buffer(struct tty_struct *tty)
{
- st_cpc_tty_area *cpc_tty;
+ st_cpc_tty_area *cpc_tty;

if (!tty || !tty->driver_data ) {
CPC_TTY_DBG("hdlcX-tty: no TTY to flush buffer\n");
@@ -618,9 +666,18 @@ static void cpc_tty_flush_buffer(struct tty_struct *tty)

CPC_TTY_DBG("%s: call wake_up_interruptible\n",cpc_tty->name);

- tty_wakeup(tty);
- return;
-}
+ wake_up_interruptible(&tty->write_wait);
+
+ if (
+ (tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
+ tty->ldisc &&
+ tty->ldisc->ops && tty->ldisc->ops->write_wakeup
+ ) {
+ CPC_TTY_DBG("%s: call line disc. wake up\n",
+ cpc_tty->name);
+ tty->ldisc->ops->write_wakeup(tty);
+ }
+}

/*
* PC300 TTY Hangup routine
@@ -631,7 +688,7 @@ static void cpc_tty_flush_buffer(struct tty_struct *tty)

static void cpc_tty_hangup(struct tty_struct *tty)
{
- st_cpc_tty_area *cpc_tty;
+ st_cpc_tty_area *cpc_tty;
int res;

if (!tty || !tty->driver_data ) {
@@ -645,7 +702,7 @@ static void cpc_tty_hangup(struct tty_struct *tty)
CPC_TTY_DBG("%s: TTY is not opened\n",cpc_tty->name);
return ;
}
- if (!serial_drv.refcount && cpc_tty_unreg_flag) {
+ if (!cpc_tty_cnt && cpc_tty_unreg_flag) {
cpc_tty_unreg_flag = 0;
CPC_TTY_DBG("%s: unregister the tty driver\n", cpc_tty->name);
if ((res=tty_unregister_driver(&serial_drv))) {
@@ -665,35 +722,35 @@ static void cpc_tty_hangup(struct tty_struct *tty)
*/
static void cpc_tty_rx_work(struct work_struct *work)
{
- st_cpc_tty_area *cpc_tty;
- unsigned long port;
int i, j;
- volatile st_cpc_rx_buf *buf;
- char flags=0,flg_rx=1;
- struct tty_ldisc *ld;
+ unsigned long port;
+ st_cpc_tty_area *cpc_tty;
+ st_cpc_rx_buf *buf;
+ char flags = 0, flg_rx = 1;

if (cpc_tty_cnt == 0) return;
-
- for (i=0; (i < 4) && flg_rx ; i++) {
- flg_rx = 0;

+ for (i = 0; (i < 4) && flg_rx; i++) {
+ flg_rx = 0;
cpc_tty = container_of(work, st_cpc_tty_area, tty_rx_work);
port = cpc_tty - cpc_tty_area;

- for (j=0; j < CPC_TTY_NPORTS; j++) {
+ for (j = 0; j < CPC_TTY_NPORTS; j++) {
cpc_tty = &cpc_tty_area[port];
-
- if ((buf=cpc_tty->buf_rx.first) != NULL) {
- if (cpc_tty->tty) {
- ld = tty_ldisc_ref(cpc_tty->tty);
- if (ld) {
- if (ld->ops->receive_buf) {
- CPC_TTY_DBG("%s: call line disc. receive_buf\n",cpc_tty->name);
- ld->ops->receive_buf(cpc_tty->tty, (char *)(buf->data), &flags, buf->size);
- }
- tty_ldisc_deref(ld);
- }
- }
+ buf = cpc_tty->buf_rx.first;
+ if (buf != NULL) {
+ if (cpc_tty->tty && cpc_tty->tty->ldisc &&
+ cpc_tty->tty->ldisc->ops &&
+ cpc_tty->tty->ldisc->ops->receive_buf) {
+ CPC_TTY_DBG(
+ "%s: call line disc. receive_buf\n",
+ cpc_tty->name);
+ cpc_tty->tty->
+ ldisc->ops->
+ receive_buf(cpc_tty->tty,
+ (char *)(buf->data),
+ &flags, buf->size);
+ }
cpc_tty->buf_rx.first = cpc_tty->buf_rx.first->next;
kfree((void *)buf);
buf = cpc_tty->buf_rx.first;
@@ -714,13 +771,13 @@ static void cpc_tty_rx_work(struct work_struct *work)
*/
static void cpc_tty_rx_disc_frame(pc300ch_t *pc300chan)
{
- volatile pcsca_bd_t __iomem * ptdescr;
- volatile unsigned char status;
- pc300_t *card = (pc300_t *)pc300chan->card;
- int ch = pc300chan->channel;
+ pcsca_bd_t *ptdescr;
+ unsigned char status;
+ pc300_t *card = (pc300_t *)pc300chan->card;
+ int ch = pc300chan->channel;

/* dma buf read */
- ptdescr = (pcsca_bd_t __iomem *)(card->hw.rambase +
+ ptdescr = (pcsca_bd_t __iomem *)(card->hw.rambase +
RX_BD_ADDR(ch, pc300chan->rx_first_bd));
while (pc300chan->rx_first_bd != pc300chan->rx_last_bd) {
status = cpc_readb(&ptdescr->status);
@@ -731,22 +788,23 @@ static void cpc_tty_rx_disc_frame(pc300ch_t *pc300chan)
if (status & DST_EOM) {
break; /* end of message */
}
- ptdescr = (pcsca_bd_t __iomem *)(card->hw.rambase + cpc_readl(&ptdescr->next));
+ ptdescr = (pcsca_bd_t __iomem *)(card->hw.rambase +
+ cpc_readl(&ptdescr->next));
}
}

void cpc_tty_receive(pc300dev_t *pc300dev)
{
- st_cpc_tty_area *cpc_tty;
- pc300ch_t *pc300chan = (pc300ch_t *)pc300dev->chan;
- pc300_t *card = (pc300_t *)pc300chan->card;
- int ch = pc300chan->channel;
- volatile pcsca_bd_t __iomem * ptdescr;
- struct net_device_stats *stats = &pc300dev->dev->stats;
- int rx_len, rx_aux;
- volatile unsigned char status;
+ st_cpc_tty_area *cpc_tty;
+ pc300ch_t *pc300chan = (pc300ch_t *)pc300dev->chan;
+ pc300_t *card = (pc300_t *)pc300chan->card;
+ int ch = pc300chan->channel;
+ pcsca_bd_t __iomem *ptdescr;
+ struct net_device_stats *stats = &pc300dev->netdev->stats;
+ int rx_len, rx_aux;
+ unsigned char status;
unsigned short first_bd = pc300chan->rx_first_bd;
- st_cpc_rx_buf *new = NULL;
+ st_cpc_rx_buf *new;
unsigned char dsr_rx;

if (pc300dev->cpc_tty == NULL) {
@@ -759,14 +817,16 @@ void cpc_tty_receive(pc300dev_t *pc300dev)

while (1) {
rx_len = 0;
- ptdescr = (pcsca_bd_t __iomem *)(card->hw.rambase + RX_BD_ADDR(ch, first_bd));
+ ptdescr = (pcsca_bd_t __iomem *)(card->hw.rambase +
+ RX_BD_ADDR(ch, first_bd));
while ((status = cpc_readb(&ptdescr->status)) & DST_OSB) {
rx_len += cpc_readw(&ptdescr->len);
first_bd = (first_bd + 1) & (N_DMA_RX_BUF - 1);
if (status & DST_EOM) {
break;
}
- ptdescr = (pcsca_bd_t __iomem *)(card->hw.rambase+cpc_readl(&ptdescr->next));
+ ptdescr = (pcsca_bd_t __iomem *)(card->hw.rambase +
+ cpc_readl(&ptdescr->next));
}

if (!rx_len) {
@@ -775,7 +835,6 @@ void cpc_tty_receive(pc300dev_t *pc300dev)
cpc_writel(card->hw.scabase + DRX_REG(EDAL, ch),
RX_BD_ADDR(ch, pc300chan->rx_last_bd));
}
- kfree(new);
return;
}

@@ -789,13 +848,13 @@ void cpc_tty_receive(pc300dev_t *pc300dev)
}

new = kmalloc(rx_len + sizeof(st_cpc_rx_buf), GFP_ATOMIC);
- if (!new) {
+ if (new == 0) {
cpc_tty_rx_disc_frame(pc300chan);
continue;
}

/* dma buf read */
- ptdescr = (pcsca_bd_t __iomem *)(card->hw.rambase +
+ ptdescr = (pcsca_bd_t __iomem *)(card->hw.rambase +
RX_BD_ADDR(ch, pc300chan->rx_first_bd));

rx_len = 0; /* counter frame size */
@@ -821,8 +880,7 @@ void cpc_tty_receive(pc300dev_t *pc300dev)
cpc_tty->name);
cpc_tty_rx_disc_frame(pc300chan);
rx_len = 0;
- kfree(new);
- new = NULL;
+ kfree((unsigned char *)new);
break; /* read next frame - while(1) */
}

@@ -831,15 +889,14 @@ void cpc_tty_receive(pc300dev_t *pc300dev)
cpc_tty_rx_disc_frame(pc300chan);
stats->rx_dropped++;
rx_len = 0;
- kfree(new);
- new = NULL;
+ kfree((unsigned char *)new);
break; /* read next frame - while(1) */
}

/* read the segment of the frame */
if (rx_aux != 0) {
memcpy_fromio((new->data + rx_len),
- (void __iomem *)(card->hw.rambase +
+ (void __iomem *)(card->hw.rambase +
cpc_readl(&ptdescr->ptbuf)), rx_aux);
rx_len += rx_aux;
}
@@ -847,9 +904,10 @@ void cpc_tty_receive(pc300dev_t *pc300dev)
cpc_writeb(&ptdescr->len, 0);
pc300chan->rx_first_bd = (pc300chan->rx_first_bd + 1) &
(N_DMA_RX_BUF -1);
- if (status & DST_EOM)break;
+ if (status & DST_EOM)
+ break;

- ptdescr = (pcsca_bd_t __iomem *) (card->hw.rambase +
+ ptdescr = (pcsca_bd_t __iomem *) (card->hw.rambase +
cpc_readl(&ptdescr->next));
}
/* update pointer */
@@ -867,8 +925,8 @@ void cpc_tty_receive(pc300dev_t *pc300dev)
cpc_tty_trace(pc300dev, new->data,rx_len, 'R');
}
new->size = rx_len;
- new->next = NULL;
- if (cpc_tty->buf_rx.first == NULL) {
+ new->next = 0;
+ if (cpc_tty->buf_rx.first == 0) {
cpc_tty->buf_rx.first = new;
cpc_tty->buf_rx.last = new;
} else {
@@ -892,15 +950,29 @@ static void cpc_tty_tx_work(struct work_struct *work)
{
st_cpc_tty_area *cpc_tty =
container_of(work, st_cpc_tty_area, tty_tx_work);
- struct tty_struct *tty;
+ struct tty_struct *tty;

CPC_TTY_DBG("%s: cpc_tty_tx_work init\n",cpc_tty->name);

- if ((tty = cpc_tty->tty) == NULL) {
- CPC_TTY_DBG("%s: the interface is not opened\n",cpc_tty->name);
+ tty = cpc_tty->tty;
+ if (tty == 0) {
+ CPC_TTY_DBG("%s: the interface is not opened\n",
+ cpc_tty->name);
return;
}
- tty_wakeup(tty);
+
+ if (
+ (tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
+ tty->ldisc &&
+ tty->ldisc->ops &&
+ tty->ldisc->ops->write_wakeup
+ ) {
+ CPC_TTY_DBG("%s:call line disc. wakeup\n",
+ cpc_tty->name);
+ tty->ldisc->ops->write_wakeup(tty);
+ }
+
+ wake_up_interruptible(&tty->write_wait);
}

/*
@@ -911,21 +983,23 @@ static void cpc_tty_tx_work(struct work_struct *work)
* o write data to DMA buffers
* o start the transmission
*/
-static int cpc_tty_send_to_card(pc300dev_t *dev,void* buf, int len)
+static int cpc_tty_send_to_card(pc300dev_t *dev, void *buf, int len)
{
pc300ch_t *chan = (pc300ch_t *)dev->chan;
pc300_t *card = (pc300_t *)chan->card;
int ch = chan->channel;
- struct net_device_stats *stats = &dev->dev->stats;
+ struct net_device_stats *stats = &dev->netdev->stats;
unsigned long flags;
- volatile pcsca_bd_t __iomem *ptdescr;
+ pcsca_bd_t __iomem *ptdescr;
int i, nchar;
int tosend = len;
int nbuf = ((len - 1)/BD_DEF_LEN) + 1;
unsigned char *pdata=buf;

- CPC_TTY_DBG("%s:cpc_tty_send_to_cars len=%i",
- (st_cpc_tty_area *)dev->cpc_tty->name,len);
+ CPC_TTY_DBG(
+ "%s:cpc_tty_send_to_card len=%i",
+ (st_cpc_tty_area *)dev->cpc_tty->name,
+ len);

if (nbuf >= card->chan[ch].nfree_tx_bd) {
return 1;
@@ -935,11 +1009,11 @@ static int cpc_tty_send_to_card(pc300dev_t *dev,void* buf, int len)
CPC_TTY_DBG("%s: call dma_buf_write\n",
(st_cpc_tty_area *)dev->cpc_tty->name);
for (i = 0 ; i < nbuf ; i++) {
- ptdescr = (pcsca_bd_t __iomem *)(card->hw.rambase +
+ ptdescr = (pcsca_bd_t __iomem *)(card->hw.rambase +
TX_BD_ADDR(ch, card->chan[ch].tx_next_bd));
nchar = (BD_DEF_LEN > tosend) ? tosend : BD_DEF_LEN;
if (cpc_readb(&ptdescr->status) & DST_OSB) {
- memcpy_toio((void __iomem *)(card->hw.rambase +
+ memcpy_toio((void __iomem *)(card->hw.rambase +
cpc_readl(&ptdescr->ptbuf)),
&pdata[len - tosend],
nchar);
@@ -955,7 +1029,7 @@ static int cpc_tty_send_to_card(pc300dev_t *dev,void* buf, int len)
CPC_TTY_DBG("%s: error in dma_buf_write\n",
(st_cpc_tty_area *)dev->cpc_tty->name);
stats->tx_dropped++;
- return 1;
+ return 1;
}
tosend -= nchar;
card->chan[ch].tx_next_bd =
@@ -982,7 +1056,7 @@ static int cpc_tty_send_to_card(pc300dev_t *dev,void* buf, int len)
(CPLD_REG2_FALC_LED1 << (2 * ch)));
}
CPC_TTY_UNLOCK(card, flags);
- return 0;
+ return 0;
}

/*
@@ -1000,26 +1074,28 @@ static void cpc_tty_trace(pc300dev_t *dev, char* buf, int len, char rxtx)

if ((skb = dev_alloc_skb(10 + len)) == NULL) {
/* out of memory */
- CPC_TTY_DBG("%s: tty_trace - out of memory\n", dev->dev->name);
+ CPC_TTY_DBG(
+ "%s: tty_trace - out of memory\n",
+ dev->netdev->name);
return;
}

skb_put (skb, 10 + len);
- skb->dev = dev->dev;
- skb->protocol = htons(ETH_P_CUST);
+ skb->dev = dev->netdev;
+ skb->protocol = htons(ETH_P_CUST);
skb_reset_mac_header(skb);
- skb->pkt_type = PACKET_HOST;
- skb->len = 10 + len;
-
- skb_copy_to_linear_data(skb, dev->dev->name, 5);
- skb->data[5] = '[';
- skb->data[6] = rxtx;
- skb->data[7] = ']';
- skb->data[8] = ':';
- skb->data[9] = ' ';
+ skb->pkt_type = PACKET_HOST;
+ skb->len = 10 + len;
+
+ skb_copy_to_linear_data(skb, dev->netdev->name, 5);
+ skb->data[5] = '[';
+ skb->data[6] = rxtx;
+ skb->data[7] = ']';
+ skb->data[8] = ':';
+ skb->data[9] = ' ';
skb_copy_to_linear_data_offset(skb, 10, buf, len);
- netif_rx(skb);
-}
+ netif_rx(skb);
+}

/*
* PC300 TTY unregister service routine
@@ -1032,38 +1108,40 @@ void cpc_tty_unregister_service(pc300dev_t *pc300dev)
ulong flags;
int res;

- if ((cpc_tty= (st_cpc_tty_area *) pc300dev->cpc_tty) == NULL) {
- CPC_TTY_DBG("%s: interface is not TTY\n", pc300dev->dev->name);
+ cpc_tty = (st_cpc_tty_area *) pc300dev->cpc_tty;
+ if (cpc_tty == 0) {
+ CPC_TTY_DBG(
+ "%s: interface is not TTY\n",
+ pc300dev->netdev->name);
return;
}
- CPC_TTY_DBG("%s: cpc_tty_unregister_service", cpc_tty->name);
+ CPC_TTY_DBG(
+ "%s: cpc_tty_unregister_service",
+ cpc_tty->name);

if (cpc_tty->pc300dev != pc300dev) {
- CPC_TTY_DBG("%s: invalid tty ptr=%s\n",
- pc300dev->dev->name, cpc_tty->name);
+ CPC_TTY_DBG(
+ "%s: invalid tty ptr=%s\n",
+ pc300dev->netdev->name,
+ cpc_tty->name);
return;
}

if (--cpc_tty_cnt == 0) {
- if (serial_drv.refcount) {
- CPC_TTY_DBG("%s: unregister is not possible, refcount=%d",
- cpc_tty->name, serial_drv.refcount);
- cpc_tty_cnt++;
- cpc_tty_unreg_flag = 1;
- return;
- } else {
- CPC_TTY_DBG("%s: unregister the tty driver\n", cpc_tty->name);
- if ((res=tty_unregister_driver(&serial_drv))) {
- CPC_TTY_DBG("%s: ERROR ->unregister the tty driver error=%d\n",
- cpc_tty->name,res);
- }
+ CPC_TTY_DBG("%s: unregister the tty driver\n",
+ cpc_tty->name);
+ res = tty_unregister_driver(&serial_drv);
+ if (res) {
+ CPC_TTY_DBG(
+ "%s: ERROR ->unregister the tty driver error=%d\n",
+ cpc_tty->name, res);
}
}
CPC_TTY_LOCK(pc300dev->chan->card,flags);
- cpc_tty->tty = NULL;
+ cpc_tty->tty = NULL;
CPC_TTY_UNLOCK(pc300dev->chan->card, flags);
- cpc_tty->tty_minor = 0;
- cpc_tty->state = CPC_TTY_ST_IDLE;
+ cpc_tty->tty_minor = 0;
+ cpc_tty->state = CPC_TTY_ST_IDLE;
}

/*
@@ -1092,6 +1170,7 @@ void cpc_tty_reset_var(void)
/* reset the tty_driver structure - serial_drv */
memset(&serial_drv, 0, sizeof(struct tty_driver));
for (i=0; i < CPC_TTY_NPORTS; i++){
- memset(&cpc_tty_area[i],0, sizeof(st_cpc_tty_area));
+ memset(&cpc_tty_area[i], 0,
+ sizeof(st_cpc_tty_area));
}
}