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cd354f1ae7
After Al Viro (finally) succeeded in removing the sched.h #include in module.h recently, it makes sense again to remove other superfluous sched.h includes. There are quite a lot of files which include it but don't actually need anything defined in there. Presumably these includes were once needed for macros that used to live in sched.h, but moved to other header files in the course of cleaning it up. To ease the pain, this time I did not fiddle with any header files and only removed #includes from .c-files, which tend to cause less trouble. Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha, arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig, allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all configs in arch/arm/configs on arm. I also checked that no new warnings were introduced by the patch (actually, some warnings are removed that were emitted by unnecessarily included header files). Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
265 lines
6.4 KiB
C
265 lines
6.4 KiB
C
/* drivers/atm/uPD98402.c - NEC uPD98402 (PHY) declarations */
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/* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
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#include <linux/module.h>
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#include <linux/mm.h>
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#include <linux/errno.h>
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#include <linux/atmdev.h>
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#include <linux/sonet.h>
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#include <linux/init.h>
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#include <asm/uaccess.h>
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#include <asm/atomic.h>
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#include "uPD98402.h"
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#if 0
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#define DPRINTK(format,args...) printk(KERN_DEBUG format,##args)
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#else
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#define DPRINTK(format,args...)
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#endif
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struct uPD98402_priv {
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struct k_sonet_stats sonet_stats;/* link diagnostics */
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unsigned char framing; /* SONET/SDH framing */
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int loop_mode; /* loopback mode */
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spinlock_t lock;
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};
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#define PRIV(dev) ((struct uPD98402_priv *) dev->phy_data)
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#define PUT(val,reg) dev->ops->phy_put(dev,val,uPD98402_##reg)
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#define GET(reg) dev->ops->phy_get(dev,uPD98402_##reg)
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static int fetch_stats(struct atm_dev *dev,struct sonet_stats __user *arg,int zero)
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{
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struct sonet_stats tmp;
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int error = 0;
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atomic_add(GET(HECCT),&PRIV(dev)->sonet_stats.uncorr_hcs);
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sonet_copy_stats(&PRIV(dev)->sonet_stats,&tmp);
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if (arg) error = copy_to_user(arg,&tmp,sizeof(tmp));
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if (zero && !error) {
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/* unused fields are reported as -1, but we must not "adjust"
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them */
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tmp.corr_hcs = tmp.tx_cells = tmp.rx_cells = 0;
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sonet_subtract_stats(&PRIV(dev)->sonet_stats,&tmp);
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}
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return error ? -EFAULT : 0;
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}
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static int set_framing(struct atm_dev *dev,unsigned char framing)
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{
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static const unsigned char sonet[] = { 1,2,3,0 };
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static const unsigned char sdh[] = { 1,0,0,2 };
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const char *set;
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unsigned long flags;
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switch (framing) {
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case SONET_FRAME_SONET:
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set = sonet;
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break;
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case SONET_FRAME_SDH:
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set = sdh;
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break;
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default:
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return -EINVAL;
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}
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spin_lock_irqsave(&PRIV(dev)->lock, flags);
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PUT(set[0],C11T);
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PUT(set[1],C12T);
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PUT(set[2],C13T);
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PUT((GET(MDR) & ~uPD98402_MDR_SS_MASK) | (set[3] <<
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uPD98402_MDR_SS_SHIFT),MDR);
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spin_unlock_irqrestore(&PRIV(dev)->lock, flags);
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return 0;
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}
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static int get_sense(struct atm_dev *dev,u8 __user *arg)
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{
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unsigned long flags;
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unsigned char s[3];
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spin_lock_irqsave(&PRIV(dev)->lock, flags);
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s[0] = GET(C11R);
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s[1] = GET(C12R);
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s[2] = GET(C13R);
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spin_unlock_irqrestore(&PRIV(dev)->lock, flags);
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return (put_user(s[0], arg) || put_user(s[1], arg+1) ||
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put_user(s[2], arg+2) || put_user(0xff, arg+3) ||
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put_user(0xff, arg+4) || put_user(0xff, arg+5)) ? -EFAULT : 0;
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}
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static int set_loopback(struct atm_dev *dev,int mode)
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{
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unsigned char mode_reg;
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mode_reg = GET(MDR) & ~(uPD98402_MDR_TPLP | uPD98402_MDR_ALP |
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uPD98402_MDR_RPLP);
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switch (__ATM_LM_XTLOC(mode)) {
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case __ATM_LM_NONE:
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break;
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case __ATM_LM_PHY:
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mode_reg |= uPD98402_MDR_TPLP;
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break;
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case __ATM_LM_ATM:
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mode_reg |= uPD98402_MDR_ALP;
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break;
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default:
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return -EINVAL;
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}
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switch (__ATM_LM_XTRMT(mode)) {
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case __ATM_LM_NONE:
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break;
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case __ATM_LM_PHY:
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mode_reg |= uPD98402_MDR_RPLP;
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break;
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default:
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return -EINVAL;
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}
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PUT(mode_reg,MDR);
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PRIV(dev)->loop_mode = mode;
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return 0;
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}
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static int uPD98402_ioctl(struct atm_dev *dev,unsigned int cmd,void __user *arg)
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{
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switch (cmd) {
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case SONET_GETSTATZ:
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case SONET_GETSTAT:
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return fetch_stats(dev,arg, cmd == SONET_GETSTATZ);
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case SONET_SETFRAMING:
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return set_framing(dev, (int)(unsigned long)arg);
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case SONET_GETFRAMING:
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return put_user(PRIV(dev)->framing,(int __user *)arg) ?
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-EFAULT : 0;
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case SONET_GETFRSENSE:
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return get_sense(dev,arg);
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case ATM_SETLOOP:
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return set_loopback(dev, (int)(unsigned long)arg);
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case ATM_GETLOOP:
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return put_user(PRIV(dev)->loop_mode,(int __user *)arg) ?
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-EFAULT : 0;
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case ATM_QUERYLOOP:
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return put_user(ATM_LM_LOC_PHY | ATM_LM_LOC_ATM |
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ATM_LM_RMT_PHY,(int __user *)arg) ? -EFAULT : 0;
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default:
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return -ENOIOCTLCMD;
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}
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}
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#define ADD_LIMITED(s,v) \
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{ atomic_add(GET(v),&PRIV(dev)->sonet_stats.s); \
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if (atomic_read(&PRIV(dev)->sonet_stats.s) < 0) \
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atomic_set(&PRIV(dev)->sonet_stats.s,INT_MAX); }
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static void stat_event(struct atm_dev *dev)
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{
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unsigned char events;
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events = GET(PCR);
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if (events & uPD98402_PFM_PFEB) ADD_LIMITED(path_febe,PFECB);
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if (events & uPD98402_PFM_LFEB) ADD_LIMITED(line_febe,LECCT);
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if (events & uPD98402_PFM_B3E) ADD_LIMITED(path_bip,B3ECT);
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if (events & uPD98402_PFM_B2E) ADD_LIMITED(line_bip,B2ECT);
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if (events & uPD98402_PFM_B1E) ADD_LIMITED(section_bip,B1ECT);
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}
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#undef ADD_LIMITED
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static void uPD98402_int(struct atm_dev *dev)
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{
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static unsigned long silence = 0;
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unsigned char reason;
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while ((reason = GET(PICR))) {
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if (reason & uPD98402_INT_LOS)
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printk(KERN_NOTICE "%s(itf %d): signal lost\n",
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dev->type,dev->number);
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if (reason & uPD98402_INT_PFM) stat_event(dev);
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if (reason & uPD98402_INT_PCO) {
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(void) GET(PCOCR); /* clear interrupt cause */
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atomic_add(GET(HECCT),
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&PRIV(dev)->sonet_stats.uncorr_hcs);
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}
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if ((reason & uPD98402_INT_RFO) &&
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(time_after(jiffies, silence) || silence == 0)) {
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printk(KERN_WARNING "%s(itf %d): uPD98402 receive "
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"FIFO overflow\n",dev->type,dev->number);
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silence = (jiffies+HZ/2)|1;
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}
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}
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}
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static int uPD98402_start(struct atm_dev *dev)
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{
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DPRINTK("phy_start\n");
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if (!(dev->dev_data = kmalloc(sizeof(struct uPD98402_priv),GFP_KERNEL)))
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return -ENOMEM;
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spin_lock_init(&PRIV(dev)->lock);
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memset(&PRIV(dev)->sonet_stats,0,sizeof(struct k_sonet_stats));
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(void) GET(PCR); /* clear performance events */
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PUT(uPD98402_PFM_FJ,PCMR); /* ignore frequency adj */
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(void) GET(PCOCR); /* clear overflows */
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PUT(~uPD98402_PCO_HECC,PCOMR);
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(void) GET(PICR); /* clear interrupts */
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PUT(~(uPD98402_INT_PFM | uPD98402_INT_ALM | uPD98402_INT_RFO |
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uPD98402_INT_LOS),PIMR); /* enable them */
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(void) fetch_stats(dev,NULL,1); /* clear kernel counters */
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atomic_set(&PRIV(dev)->sonet_stats.corr_hcs,-1);
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atomic_set(&PRIV(dev)->sonet_stats.tx_cells,-1);
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atomic_set(&PRIV(dev)->sonet_stats.rx_cells,-1);
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return 0;
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}
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static int uPD98402_stop(struct atm_dev *dev)
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{
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/* let SAR driver worry about stopping interrupts */
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kfree(PRIV(dev));
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return 0;
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}
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static const struct atmphy_ops uPD98402_ops = {
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.start = uPD98402_start,
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.ioctl = uPD98402_ioctl,
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.interrupt = uPD98402_int,
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.stop = uPD98402_stop,
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};
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int uPD98402_init(struct atm_dev *dev)
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{
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DPRINTK("phy_init\n");
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dev->phy = &uPD98402_ops;
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return 0;
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}
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MODULE_LICENSE("GPL");
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EXPORT_SYMBOL(uPD98402_init);
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static __init int uPD98402_module_init(void)
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{
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return 0;
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}
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module_init(uPD98402_module_init);
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/* module_exit not defined so not unloadable */
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