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author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2012-04-21 23:28:35 -0700 |
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committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2012-04-21 23:28:35 -0700 |
commit | 57b8628bb0ac4e47c806e45c5bbd89282e93869b (patch) | |
tree | ee9289f0898054474b7e5054abdb3ffb78666436 /drivers/isdn/pcbit/layer2.h | |
parent | 486c8aba39e5f194519cd5c0e85e5d1de8b74b03 (diff) | |
parent | 66f75a5d028beaf67c931435fdc3e7823125730c (diff) | |
download | linux-57b8628bb0ac4e47c806e45c5bbd89282e93869b.tar.gz linux-57b8628bb0ac4e47c806e45c5bbd89282e93869b.tar.bz2 linux-57b8628bb0ac4e47c806e45c5bbd89282e93869b.zip |
Merge commit 'v3.4-rc4' into next
Diffstat (limited to 'drivers/isdn/pcbit/layer2.h')
-rw-r--r-- | drivers/isdn/pcbit/layer2.h | 265 |
1 files changed, 129 insertions, 136 deletions
diff --git a/drivers/isdn/pcbit/layer2.h b/drivers/isdn/pcbit/layer2.h index 2ac295e1a6e5..be1327bc162a 100644 --- a/drivers/isdn/pcbit/layer2.h +++ b/drivers/isdn/pcbit/layer2.h @@ -2,17 +2,17 @@ * PCBIT-D low-layer interface definitions * * Copyright (C) 1996 Universidade de Lisboa - * + * * Written by Pedro Roque Marques (roque@di.fc.ul.pt) * - * This software may be used and distributed according to the terms of + * This software may be used and distributed according to the terms of * the GNU General Public License, incorporated herein by reference. */ /* * 19991203 - Fernando Carvalho - takion@superbofh.org * Hacked to compile with egcs and run with current version of isdn modules -*/ + */ #ifndef LAYER2_H #define LAYER2_H @@ -37,8 +37,8 @@ /* TAM - XX - C - S - NUM */ #define PREHDR_LEN 8 -/* TT - M - I - TH - TD */ -#define FRAME_HDR_LEN 8 +/* TT - M - I - TH - TD */ +#define FRAME_HDR_LEN 8 #define MSG_CONN_REQ 0x08000100 #define MSG_CONN_CONF 0x00000101 @@ -84,21 +84,21 @@ #define MSG_DEBUG_188 0x0000ff00 /* - - long 4 3 2 1 - Intel 1 2 3 4 + + long 4 3 2 1 + Intel 1 2 3 4 */ #ifdef __LITTLE_ENDIAN -#define SET_MSG_SCMD(msg, ch) (msg = (msg & 0xffffff00) | (((ch) & 0xff))) -#define SET_MSG_CMD(msg, ch) (msg = (msg & 0xffff00ff) | (((ch) & 0xff) << 8)) -#define SET_MSG_PROC(msg, ch) (msg = (msg & 0xff00ffff) | (((ch) & 0xff) << 16)) -#define SET_MSG_CPU(msg, ch) (msg = (msg & 0x00ffffff) | (((ch) & 0xff) << 24)) +#define SET_MSG_SCMD(msg, ch) (msg = (msg & 0xffffff00) | (((ch) & 0xff))) +#define SET_MSG_CMD(msg, ch) (msg = (msg & 0xffff00ff) | (((ch) & 0xff) << 8)) +#define SET_MSG_PROC(msg, ch) (msg = (msg & 0xff00ffff) | (((ch) & 0xff) << 16)) +#define SET_MSG_CPU(msg, ch) (msg = (msg & 0x00ffffff) | (((ch) & 0xff) << 24)) -#define GET_MSG_SCMD(msg) ((msg) & 0xFF) -#define GET_MSG_CMD(msg) ((msg) >> 8 & 0xFF) -#define GET_MSG_PROC(msg) ((msg) >> 16 & 0xFF) -#define GET_MSG_CPU(msg) ((msg) >> 24) +#define GET_MSG_SCMD(msg) ((msg) & 0xFF) +#define GET_MSG_CMD(msg) ((msg) >> 8 & 0xFF) +#define GET_MSG_PROC(msg) ((msg) >> 16 & 0xFF) +#define GET_MSG_CPU(msg) ((msg) >> 24) #else #error "Non-Intel CPU" @@ -109,60 +109,60 @@ #define SCHED_READ 0x01 #define SCHED_WRITE 0x02 -#define SET_RUN_TIMEOUT 2*HZ /* 2 seconds */ - +#define SET_RUN_TIMEOUT 2 * HZ /* 2 seconds */ + struct frame_buf { - ulong msg; - unsigned int refnum; - unsigned int dt_len; - unsigned int hdr_len; - struct sk_buff *skb; + ulong msg; + unsigned int refnum; + unsigned int dt_len; + unsigned int hdr_len; + struct sk_buff *skb; unsigned int copied; - struct frame_buf * next; + struct frame_buf *next; }; -extern int pcbit_l2_write(struct pcbit_dev * dev, ulong msg, ushort refnum, - struct sk_buff *skb, unsigned short hdr_len); +extern int pcbit_l2_write(struct pcbit_dev *dev, ulong msg, ushort refnum, + struct sk_buff *skb, unsigned short hdr_len); extern irqreturn_t pcbit_irq_handler(int interrupt, void *); -extern struct pcbit_dev * dev_pcbit[MAX_PCBIT_CARDS]; +extern struct pcbit_dev *dev_pcbit[MAX_PCBIT_CARDS]; #ifdef DEBUG static __inline__ void log_state(struct pcbit_dev *dev) { - printk(KERN_DEBUG "writeptr = %ld\n", + printk(KERN_DEBUG "writeptr = %ld\n", (ulong) (dev->writeptr - dev->sh_mem)); - printk(KERN_DEBUG "readptr = %ld\n", + printk(KERN_DEBUG "readptr = %ld\n", (ulong) (dev->readptr - (dev->sh_mem + BANK2))); - printk(KERN_DEBUG "{rcv_seq=%01x, send_seq=%01x, unack_seq=%01x}\n", + printk(KERN_DEBUG "{rcv_seq=%01x, send_seq=%01x, unack_seq=%01x}\n", dev->rcv_seq, dev->send_seq, dev->unack_seq); } #endif -static __inline__ struct pcbit_dev * chan2dev(struct pcbit_chan * chan) +static __inline__ struct pcbit_dev *chan2dev(struct pcbit_chan *chan) { - struct pcbit_dev * dev; - int i; + struct pcbit_dev *dev; + int i; - for (i=0; i<MAX_PCBIT_CARDS; i++) - if ((dev=dev_pcbit[i])) - if (dev->b1 == chan || dev->b2 == chan) - return dev; - return NULL; + for (i = 0; i < MAX_PCBIT_CARDS; i++) + if ((dev = dev_pcbit[i])) + if (dev->b1 == chan || dev->b2 == chan) + return dev; + return NULL; } -static __inline__ struct pcbit_dev * finddev(int id) +static __inline__ struct pcbit_dev *finddev(int id) { - struct pcbit_dev * dev; - int i; - - for (i=0; i<MAX_PCBIT_CARDS; i++) - if ((dev=dev_pcbit[i])) - if (dev->id == id) - return dev; - return NULL; + struct pcbit_dev *dev; + int i; + + for (i = 0; i < MAX_PCBIT_CARDS; i++) + if ((dev = dev_pcbit[i])) + if (dev->id == id) + return dev; + return NULL; } @@ -172,117 +172,110 @@ static __inline__ struct pcbit_dev * finddev(int id) static __inline__ void pcbit_writeb(struct pcbit_dev *dev, unsigned char dt) { - writeb(dt, dev->writeptr++); - if (dev->writeptr == dev->sh_mem + BANKLEN) - dev->writeptr = dev->sh_mem; + writeb(dt, dev->writeptr++); + if (dev->writeptr == dev->sh_mem + BANKLEN) + dev->writeptr = dev->sh_mem; } static __inline__ void pcbit_writew(struct pcbit_dev *dev, unsigned short dt) { - int dist; - - dist = BANKLEN - (dev->writeptr - dev->sh_mem); - switch (dist) { - case 2: - writew(dt, dev->writeptr); - dev->writeptr = dev->sh_mem; - break; - case 1: - writeb((u_char) (dt & 0x00ffU), dev->writeptr); - dev->writeptr = dev->sh_mem; - writeb((u_char) (dt >> 8), dev->writeptr++); - break; - default: - writew(dt, dev->writeptr); - dev->writeptr += 2; - break; - }; + int dist; + + dist = BANKLEN - (dev->writeptr - dev->sh_mem); + switch (dist) { + case 2: + writew(dt, dev->writeptr); + dev->writeptr = dev->sh_mem; + break; + case 1: + writeb((u_char) (dt & 0x00ffU), dev->writeptr); + dev->writeptr = dev->sh_mem; + writeb((u_char) (dt >> 8), dev->writeptr++); + break; + default: + writew(dt, dev->writeptr); + dev->writeptr += 2; + break; + }; } -static __inline__ void memcpy_topcbit(struct pcbit_dev * dev, u_char * data, +static __inline__ void memcpy_topcbit(struct pcbit_dev *dev, u_char *data, int len) { - int diff; - - diff = len - (BANKLEN - (dev->writeptr - dev->sh_mem) ); - - if (diff > 0) - { - memcpy_toio(dev->writeptr, data, len - diff); - memcpy_toio(dev->sh_mem, data + (len - diff), diff); - dev->writeptr = dev->sh_mem + diff; - } - else - { - memcpy_toio(dev->writeptr, data, len); - - dev->writeptr += len; - if (diff == 0) - dev->writeptr = dev->sh_mem; - } + int diff; + + diff = len - (BANKLEN - (dev->writeptr - dev->sh_mem)); + + if (diff > 0) + { + memcpy_toio(dev->writeptr, data, len - diff); + memcpy_toio(dev->sh_mem, data + (len - diff), diff); + dev->writeptr = dev->sh_mem + diff; + } + else + { + memcpy_toio(dev->writeptr, data, len); + + dev->writeptr += len; + if (diff == 0) + dev->writeptr = dev->sh_mem; + } } static __inline__ unsigned char pcbit_readb(struct pcbit_dev *dev) { - unsigned char val; + unsigned char val; - val = readb(dev->readptr++); - if (dev->readptr == dev->sh_mem + BANK2 + BANKLEN) - dev->readptr = dev->sh_mem + BANK2; + val = readb(dev->readptr++); + if (dev->readptr == dev->sh_mem + BANK2 + BANKLEN) + dev->readptr = dev->sh_mem + BANK2; - return val; + return val; } static __inline__ unsigned short pcbit_readw(struct pcbit_dev *dev) { - int dist; - unsigned short val; - - dist = BANKLEN - ( dev->readptr - (dev->sh_mem + BANK2 ) ); - switch (dist) { - case 2: - val = readw(dev->readptr); - dev->readptr = dev->sh_mem + BANK2; - break; - case 1: - val = readb(dev->readptr); - dev->readptr = dev->sh_mem + BANK2; - val = (readb(dev->readptr++) << 8) | val; - break; - default: - val = readw(dev->readptr); - dev->readptr += 2; - break; - }; - return val; + int dist; + unsigned short val; + + dist = BANKLEN - (dev->readptr - (dev->sh_mem + BANK2)); + switch (dist) { + case 2: + val = readw(dev->readptr); + dev->readptr = dev->sh_mem + BANK2; + break; + case 1: + val = readb(dev->readptr); + dev->readptr = dev->sh_mem + BANK2; + val = (readb(dev->readptr++) << 8) | val; + break; + default: + val = readw(dev->readptr); + dev->readptr += 2; + break; + }; + return val; } -static __inline__ void memcpy_frompcbit(struct pcbit_dev * dev, u_char * data, int len) +static __inline__ void memcpy_frompcbit(struct pcbit_dev *dev, u_char *data, int len) { - int diff; - - diff = len - (BANKLEN - (dev->readptr - (dev->sh_mem + BANK2) ) ); - if (diff > 0) - { - memcpy_fromio(data, dev->readptr, len - diff); - memcpy_fromio(data + (len - diff), dev->sh_mem + BANK2 , diff); - dev->readptr = dev->sh_mem + BANK2 + diff; - } - else - { - memcpy_fromio(data, dev->readptr, len); - dev->readptr += len; - if (diff == 0) - dev->readptr = dev->sh_mem + BANK2; - } + int diff; + + diff = len - (BANKLEN - (dev->readptr - (dev->sh_mem + BANK2))); + if (diff > 0) + { + memcpy_fromio(data, dev->readptr, len - diff); + memcpy_fromio(data + (len - diff), dev->sh_mem + BANK2 , diff); + dev->readptr = dev->sh_mem + BANK2 + diff; + } + else + { + memcpy_fromio(data, dev->readptr, len); + dev->readptr += len; + if (diff == 0) + dev->readptr = dev->sh_mem + BANK2; + } } #endif - - - - - - - |