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atm: [suni] add support for setting loopback and framing modes
Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Chas Williams
David S. Miller
parent
2be63b878f
commit
df3bc8bd8f
3 changed files with 133 additions and 21 deletions
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@ -1,8 +1,14 @@
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/* drivers/atm/suni.c - PMC PM5346 SUNI (PHY) driver */
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/*
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* drivers/atm/suni.c - S/UNI PHY driver
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*
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* Supports the following:
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* PMC PM5346 S/UNI LITE
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* PMC PM5350 S/UNI 155 ULTRA
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* PMC PM5355 S/UNI 622
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*/
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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/jiffies.h>
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#include <linux/kernel.h>
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@ -146,25 +152,105 @@ static int get_diag(struct atm_dev *dev,void __user *arg)
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static int set_loopback(struct atm_dev *dev,int mode)
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{
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unsigned char control;
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int reg, dle, lle;
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control = GET(MCT) & ~(SUNI_MCT_DLE | SUNI_MCT_LLE);
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if (PRIV(dev)->type == SUNI_MRI_TYPE_PM5355) {
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reg = SUNI_MCM;
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dle = SUNI_MCM_DLE;
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lle = SUNI_MCM_LLE;
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} else {
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reg = SUNI_MCT;
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dle = SUNI_MCT_DLE;
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lle = SUNI_MCT_LLE;
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}
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control = dev->ops->phy_get(dev, reg) & ~(dle | lle);
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switch (mode) {
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case ATM_LM_NONE:
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break;
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case ATM_LM_LOC_PHY:
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control |= SUNI_MCT_DLE;
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control |= dle;
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break;
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case ATM_LM_RMT_PHY:
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control |= SUNI_MCT_LLE;
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control |= lle;
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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(control,MCT);
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dev->ops->phy_put(dev, control, reg);
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PRIV(dev)->loop_mode = mode;
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return 0;
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}
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/*
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* SONET vs. SDH Configuration
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*
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* Z0INS (register 0x06): 0 for SONET, 1 for SDH
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* ENSS (register 0x3D): 0 for SONET, 1 for SDH
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* LEN16 (register 0x28): 0 for SONET, 1 for SDH (n/a for S/UNI 155 QUAD)
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* LEN16 (register 0x50): 0 for SONET, 1 for SDH (n/a for S/UNI 155 QUAD)
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* S[1:0] (register 0x46): 00 for SONET, 10 for SDH
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*/
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static int set_sonet(struct atm_dev *dev)
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{
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if (PRIV(dev)->type == SUNI_MRI_TYPE_PM5355) {
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PUT(GET(RPOP_RC) & ~SUNI_RPOP_RC_ENSS, RPOP_RC);
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PUT(GET(SSTB_CTRL) & ~SUNI_SSTB_CTRL_LEN16, SSTB_CTRL);
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PUT(GET(SPTB_CTRL) & ~SUNI_SPTB_CTRL_LEN16, SPTB_CTRL);
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}
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REG_CHANGE(SUNI_TPOP_APM_S, SUNI_TPOP_APM_S_SHIFT,
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SUNI_TPOP_S_SONET, TPOP_APM);
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return 0;
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}
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static int set_sdh(struct atm_dev *dev)
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{
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if (PRIV(dev)->type == SUNI_MRI_TYPE_PM5355) {
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PUT(GET(RPOP_RC) | SUNI_RPOP_RC_ENSS, RPOP_RC);
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PUT(GET(SSTB_CTRL) | SUNI_SSTB_CTRL_LEN16, SSTB_CTRL);
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PUT(GET(SPTB_CTRL) | SUNI_SPTB_CTRL_LEN16, SPTB_CTRL);
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}
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REG_CHANGE(SUNI_TPOP_APM_S, SUNI_TPOP_APM_S_SHIFT,
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SUNI_TPOP_S_SDH, TPOP_APM);
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return 0;
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}
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static int get_framing(struct atm_dev *dev, void __user *arg)
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{
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int framing;
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unsigned char s;
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s = (GET(TPOP_APM) & SUNI_TPOP_APM_S) >> SUNI_TPOP_APM_S_SHIFT;
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if (s == SUNI_TPOP_S_SONET)
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framing = SONET_FRAME_SONET;
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else
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framing = SONET_FRAME_SDH;
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return put_user(framing, (int __user *) arg) ? -EFAULT : 0;
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}
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static int set_framing(struct atm_dev *dev, void __user *arg)
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{
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int mode;
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if (get_user(mode, (int __user *) arg))
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return -EFAULT;
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if (mode == SONET_FRAME_SONET)
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return set_sonet(dev);
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else if (mode == SONET_FRAME_SDH)
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return set_sdh(dev);
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return -EINVAL;
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}
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static int suni_ioctl(struct atm_dev *dev,unsigned int cmd,void __user *arg)
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{
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@ -179,14 +265,16 @@ static int suni_ioctl(struct atm_dev *dev,unsigned int cmd,void __user *arg)
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case SONET_GETDIAG:
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return get_diag(dev,arg);
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case SONET_SETFRAMING:
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if ((int)(unsigned long)arg != SONET_FRAME_SONET) return -EINVAL;
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return 0;
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if (!capable(CAP_NET_ADMIN))
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return -EPERM;
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return set_framing(dev, arg);
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case SONET_GETFRAMING:
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return put_user(SONET_FRAME_SONET,(int __user *)arg) ?
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-EFAULT : 0;
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return get_framing(dev, arg);
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case SONET_GETFRSENSE:
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return -EINVAL;
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case ATM_SETLOOP:
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if (!capable(CAP_NET_ADMIN))
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return -EPERM;
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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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@ -220,10 +308,6 @@ static int suni_start(struct atm_dev *dev)
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unsigned long flags;
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int first;
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if (!(dev->phy_data = kmalloc(sizeof(struct suni_priv),GFP_KERNEL)))
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return -ENOMEM;
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PRIV(dev)->dev = dev;
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spin_lock_irqsave(&sunis_lock,flags);
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first = !sunis;
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PRIV(dev)->next = sunis;
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@ -284,16 +368,21 @@ int suni_init(struct atm_dev *dev)
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{
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unsigned char mri;
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if (!(dev->phy_data = kmalloc(sizeof(struct suni_priv),GFP_KERNEL)))
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return -ENOMEM;
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PRIV(dev)->dev = dev;
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mri = GET(MRI); /* reset SUNI */
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PRIV(dev)->type = (mri & SUNI_MRI_TYPE) >> SUNI_MRI_TYPE_SHIFT;
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PUT(mri | SUNI_MRI_RESET,MRI);
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PUT(mri,MRI);
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PUT((GET(MT) & SUNI_MT_DS27_53),MT); /* disable all tests */
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REG_CHANGE(SUNI_TPOP_APM_S,SUNI_TPOP_APM_S_SHIFT,SUNI_TPOP_S_SONET,
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TPOP_APM); /* use SONET */
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set_sonet(dev);
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REG_CHANGE(SUNI_TACP_IUCHP_CLP,0,SUNI_TACP_IUCHP_CLP,
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TACP_IUCHP); /* idle cells */
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PUT(SUNI_IDLE_PATTERN,TACP_IUCPOP);
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dev->phy = &suni_ops;
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return 0;
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}
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@ -1,7 +1,8 @@
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/* drivers/atm/suni.h - PMC PM5346 SUNI (PHY) declarations */
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/*
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* drivers/atm/suni.h - S/UNI PHY driver
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*/
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/* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
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#ifndef DRIVER_ATM_SUNI_H
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#define DRIVER_ATM_SUNI_H
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@ -39,7 +40,8 @@
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#define SUNI_RLOP_LFM 0x1F /* RLOP Line FEBE MSB */
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#define SUNI_TLOP_CTRL 0x20 /* TLOP Control */
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#define SUNI_TLOP_DIAG 0x21 /* TLOP Diagnostic */
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/* 0x22-0x2F reserved */
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/* 0x22-0x27 reserved */
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#define SUNI_SSTB_CTRL 0x28
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#define SUNI_RPOP_SC 0x30 /* RPOP Status/Control */
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#define SUNI_RPOP_IS 0x31 /* RPOP Interrupt Status */
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/* 0x32 reserved */
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@ -52,6 +54,7 @@
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#define SUNI_RPOP_PFM 0x3B /* RPOP Path FEBE MSB */
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/* 0x3C reserved */
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#define SUNI_RPOP_PBC 0x3D /* RPOP Path BIP-8 Configuration */
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#define SUNI_RPOP_RC 0x3D /* RPOP Ring Control (PM5355) */
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/* 0x3E-0x3F reserved */
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#define SUNI_TPOP_CD 0x40 /* TPOP Control/Diagnostic */
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#define SUNI_TPOP_PC 0x41 /* TPOP Pointer Control */
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@ -82,7 +85,8 @@
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#define SUNI_TACP_TCC 0x65 /* TACP Transmit Cell Counter */
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#define SUNI_TACP_TCCM 0x66 /* TACP Transmit Cell Counter MSB */
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#define SUNI_TACP_CFG 0x67 /* TACP Configuration */
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/* 0x68-0x7F reserved */
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#define SUNI_SPTB_CTRL 0x68 /* SPTB Control */
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/* 0x69-0x7F reserved */
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#define SUNI_MT 0x80 /* Master Test */
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/* 0x81-0xFF reserved */
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@ -94,9 +98,18 @@
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#define SUNI_MRI_ID_SHIFT 0
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#define SUNI_MRI_TYPE 0x70 /* R, SUNI type (lite is 011) */
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#define SUNI_MRI_TYPE_SHIFT 4
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#define SUNI_MRI_TYPE_PM5346 0x3 /* S/UNI 155 LITE */
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#define SUNI_MRI_TYPE_PM5347 0x4 /* S/UNI 155 PLUS */
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#define SUNI_MRI_TYPE_PM5350 0x7 /* S/UNI 155 ULTRA */
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#define SUNI_MRI_TYPE_PM5355 0x1 /* S/UNI 622 */
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#define SUNI_MRI_RESET 0x80 /* RW, reset & power down chip
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0: normal operation
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1: reset & low power */
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/* MCM is reg 0x4 */
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#define SUNI_MCM_LLE 0x20 /* line loopback (PM5355) */
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#define SUNI_MCM_DLE 0x10 /* diagnostic loopback (PM5355) */
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/* MCT is reg 5 */
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#define SUNI_MCT_LOOPT 0x01 /* RW, timing source, 0: from
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TRCLK+/- */
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@ -144,6 +157,12 @@
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/* TLOP_DIAG is reg 0x21 */
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#define SUNI_TLOP_DIAG_DBIP 0x01 /* insert line BIP err (continuously) */
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/* SSTB_CTRL is reg 0x28 */
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#define SUNI_SSTB_CTRL_LEN16 0x01 /* path trace message length bit */
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/* RPOP_RC is reg 0x3D (PM5355) */
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#define SUNI_RPOP_RC_ENSS 0x40 /* enable size bit */
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/* TPOP_DIAG is reg 0x40 */
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#define SUNI_TPOP_DIAG_PAIS 0x01 /* insert STS path alarm ind (cont) */
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#define SUNI_TPOP_DIAG_DB3 0x02 /* insert path BIP err (continuously) */
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@ -191,6 +210,9 @@
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pattern */
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#define SUNI_TACP_IUCHP_GFC_SHIFT 4
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/* SPTB_CTRL is reg 0x68 */
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#define SUNI_SPTB_CTRL_LEN16 0x01 /* path trace message length */
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/* MT is reg 0x80 */
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#define SUNI_MT_HIZIO 0x01 /* RW, all but data bus & MP interface
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tri-state */
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@ -208,6 +230,7 @@
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struct suni_priv {
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struct k_sonet_stats sonet_stats; /* link diagnostics */
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int loop_mode; /* loopback mode */
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int type; /* phy type */
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struct atm_dev *dev; /* device back-pointer */
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struct suni_priv *next; /* next SUNI */
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};
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@ -34,7 +34,7 @@ struct sonet_stats {
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/* clear error insertion */
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#define SONET_GETDIAG _IOR('a',ATMIOC_PHYTYP+4,int)
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/* query error insertion */
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#define SONET_SETFRAMING _IO('a',ATMIOC_PHYTYP+5)
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#define SONET_SETFRAMING _IOW('a',ATMIOC_PHYTYP+5,int)
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/* set framing mode (SONET/SDH) */
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#define SONET_GETFRAMING _IOR('a',ATMIOC_PHYTYP+6,int)
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/* get framing mode */
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