Release 4.9 drivers/staging/vt6655/mac.c

Directory: drivers/staging/vt6655
/*
 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
 * All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 *
 * File: mac.c
 *
 * Purpose:  MAC routines
 *
 * Author: Tevin Chen
 *
 * Date: May 21, 1996
 *
 * Functions:
 *      MACbIsRegBitsOn - Test if All test Bits On
 *      MACbIsRegBitsOff - Test if All test Bits Off
 *      MACbIsIntDisable - Test if MAC interrupt disable
 *      MACvSetShortRetryLimit - Set 802.11 Short Retry limit
 *      MACvSetLongRetryLimit - Set 802.11 Long Retry limit
 *      MACvSetLoopbackMode - Set MAC Loopback Mode
 *      MACvSaveContext - Save Context of MAC Registers
 *      MACvRestoreContext - Restore Context of MAC Registers
 *      MACbSoftwareReset - Software Reset MAC
 *      MACbSafeRxOff - Turn Off MAC Rx
 *      MACbSafeTxOff - Turn Off MAC Tx
 *      MACbSafeStop - Stop MAC function
 *      MACbShutdown - Shut down MAC
 *      MACvInitialize - Initialize MAC
 *      MACvSetCurrRxDescAddr - Set Rx Descriptors Address
 *      MACvSetCurrTx0DescAddr - Set Tx0 Descriptors Address
 *      MACvSetCurrTx1DescAddr - Set Tx1 Descriptors Address
 *      MACvTimer0MicroSDelay - Micro Second Delay Loop by MAC
 *
 * Revision History:
 *      08-22-2003 Kyle Hsu     :  Porting MAC functions from sim53
 *      09-03-2003 Bryan YC Fan :  Add MACvClearBusSusInd()&
 *                                 MACvEnableBusSusEn()
 *      09-18-2003 Jerry Chen   :  Add MACvSetKeyEntry & MACvDisableKeyEntry
 *
 */

#include "tmacro.h"
#include "mac.h"

/*
 * Description:
 *      Test if all test bits on
 *
 * Parameters:
 *  In:
 *      io_base    - Base Address for MAC
 *      byRegOfs    - Offset of MAC Register
 *      byTestBits  - Test bits
 *  Out:
 *      none
 *
 * Return Value: true if all test bits On; otherwise false
 *
 */


bool MACbIsRegBitsOn(struct vnt_private *priv, unsigned char byRegOfs,
		     unsigned char byTestBits)
{
	void __iomem *io_base = priv->PortOffset;

	return (ioread8(io_base + byRegOfs) & byTestBits) == byTestBits;
}

Contributors
Person Tokens Prop Commits CommitProp
malcolm priestley malcolm priestley 16 39.02% 3 37.50%
forest bond forest bond 15 36.59% 1 12.50%
charles clement charles clement 5 12.20% 2 25.00%
jim lieb jim lieb 4 9.76% 1 12.50%
guillaume clement guillaume clement 1 2.44% 1 12.50%
Total 41 100.00% 8 100.00%

/*
 * Description:
 *      Test if all test bits off
 *
 * Parameters:
 *  In:
 *      io_base    - Base Address for MAC
 *      byRegOfs    - Offset of MAC Register
 *      byTestBits  - Test bits
 *  Out:
 *      none
 *
 * Return Value: true if all test bits Off; otherwise false
 *
 */


bool MACbIsRegBitsOff(struct vnt_private *priv, unsigned char byRegOfs,
		      unsigned char byTestBits)
{
	void __iomem *io_base = priv->PortOffset;

	return !(ioread8(io_base + byRegOfs) & byTestBits);
}

Contributors
Person Tokens Prop Commits CommitProp
malcolm priestley malcolm priestley 17 42.50% 3 37.50%
forest bond forest bond 15 37.50% 1 12.50%
charles clement charles clement 5 12.50% 2 25.00%
jim lieb jim lieb 2 5.00% 1 12.50%
guillaume clement guillaume clement 1 2.50% 1 12.50%
Total 40 100.00% 8 100.00%

/*
 * Description:
 *      Test if MAC interrupt disable
 *
 * Parameters:
 *  In:
 *      io_base    - Base Address for MAC
 *  Out:
 *      none
 *
 * Return Value: true if interrupt is disable; otherwise false
 *
 */


bool MACbIsIntDisable(struct vnt_private *priv)
{
	void __iomem *io_base = priv->PortOffset;

	if (ioread32(io_base + MAC_REG_IMR))
		return false;

	return true;
}

Contributors
Person Tokens Prop Commits CommitProp
malcolm priestley malcolm priestley 16 47.06% 3 37.50%
forest bond forest bond 12 35.29% 1 12.50%
charles clement charles clement 3 8.82% 3 37.50%
guillaume clement guillaume clement 3 8.82% 1 12.50%
Total 34 100.00% 8 100.00%

/*
 * Description:
 *      Set 802.11 Short Retry Limit
 *
 * Parameters:
 *  In:
 *      io_base    - Base Address for MAC
 *      byRetryLimit- Retry Limit
 *  Out:
 *      none
 *
 * Return Value: none
 *
 */


void MACvSetShortRetryLimit(struct vnt_private *priv,
			    unsigned char byRetryLimit)
{
	void __iomem *io_base = priv->PortOffset;
	/* set SRT */
	iowrite8(byRetryLimit, io_base + MAC_REG_SRT);
}


Contributors
Person Tokens Prop Commits CommitProp
malcolm priestley malcolm priestley 21 63.64% 4 50.00%
forest bond forest bond 9 27.27% 1 12.50%
charles clement charles clement 1 3.03% 1 12.50%
guillaume clement guillaume clement 1 3.03% 1 12.50%
matteo semenzato matteo semenzato 1 3.03% 1 12.50%
Total 33 100.00% 8 100.00%

/*
 * Description:
 *      Set 802.11 Long Retry Limit
 *
 * Parameters:
 *  In:
 *      io_base    - Base Address for MAC
 *      byRetryLimit- Retry Limit
 *  Out:
 *      none
 *
 * Return Value: none
 *
 */


void MACvSetLongRetryLimit(struct vnt_private *priv,
			   unsigned char byRetryLimit)
{
	void __iomem *io_base = priv->PortOffset;
	/* set LRT */
	iowrite8(byRetryLimit, io_base + MAC_REG_LRT);
}

Contributors
Person Tokens Prop Commits CommitProp
malcolm priestley malcolm priestley 20 60.61% 4 50.00%
forest bond forest bond 9 27.27% 1 12.50%
charles clement charles clement 2 6.06% 1 12.50%
matteo semenzato matteo semenzato 1 3.03% 1 12.50%
guillaume clement guillaume clement 1 3.03% 1 12.50%
Total 33 100.00% 8 100.00%

/*
 * Description:
 *      Set MAC Loopback mode
 *
 * Parameters:
 *  In:
 *      io_base        - Base Address for MAC
 *      byLoopbackMode  - Loopback Mode
 *  Out:
 *      none
 *
 * Return Value: none
 *
 */


void MACvSetLoopbackMode(struct vnt_private *priv, unsigned char byLoopbackMode)
{
	void __iomem *io_base = priv->PortOffset;

	byLoopbackMode <<= 6;
	/* set TCR */
	iowrite8((ioread8(io_base + MAC_REG_TEST) & 0x3f) | byLoopbackMode,
		 io_base + MAC_REG_TEST);
}

Contributors
Person Tokens Prop Commits CommitProp
malcolm priestley malcolm priestley 32 66.67% 5 55.56%
forest bond forest bond 12 25.00% 1 11.11%
charles clement charles clement 2 4.17% 1 11.11%
guillaume clement guillaume clement 1 2.08% 1 11.11%
matteo semenzato matteo semenzato 1 2.08% 1 11.11%
Total 48 100.00% 9 100.00%

/*
 * Description:
 *      Save MAC registers to context buffer
 *
 * Parameters:
 *  In:
 *      io_base    - Base Address for MAC
 *  Out:
 *      cxt_buf   - Context buffer
 *
 * Return Value: none
 *
 */


void MACvSaveContext(struct vnt_private *priv, unsigned char *cxt_buf)
{
	void __iomem *io_base = priv->PortOffset;

	/* read page0 register */
	memcpy_fromio(cxt_buf, io_base, MAC_MAX_CONTEXT_SIZE_PAGE0);

	MACvSelectPage1(io_base);

	/* read page1 register */
	memcpy_fromio(cxt_buf + MAC_MAX_CONTEXT_SIZE_PAGE0, io_base,
		      MAC_MAX_CONTEXT_SIZE_PAGE1);

	MACvSelectPage0(io_base);
}

Contributors
Person Tokens Prop Commits CommitProp
malcolm priestley malcolm priestley 33 58.93% 5 55.56%
forest bond forest bond 17 30.36% 1 11.11%
charles clement charles clement 3 5.36% 1 11.11%
matteo semenzato matteo semenzato 2 3.57% 1 11.11%
guillaume clement guillaume clement 1 1.79% 1 11.11%
Total 56 100.00% 9 100.00%

/*
 * Description:
 *      Restore MAC registers from context buffer
 *
 * Parameters:
 *  In:
 *      io_base    - Base Address for MAC
 *      cxt_buf   - Context buffer
 *  Out:
 *      none
 *
 * Return Value: none
 *
 */


void MACvRestoreContext(struct vnt_private *priv, unsigned char *cxt_buf)
{
	void __iomem *io_base = priv->PortOffset;

	MACvSelectPage1(io_base);
	/* restore page1 */
	memcpy_toio(io_base, cxt_buf + MAC_MAX_CONTEXT_SIZE_PAGE0,
		    MAC_MAX_CONTEXT_SIZE_PAGE1);

	MACvSelectPage0(io_base);

	/* restore RCR,TCR,IMR... */
	memcpy_toio(io_base + MAC_REG_RCR, cxt_buf + MAC_REG_RCR,
		    MAC_REG_ISR - MAC_REG_RCR);

	/* restore MAC Config. */
	memcpy_toio(io_base + MAC_REG_LRT, cxt_buf + MAC_REG_LRT,
		    MAC_REG_PAGE1SEL - MAC_REG_LRT);

	iowrite8(*(cxt_buf + MAC_REG_CFG), io_base + MAC_REG_CFG);

	/* restore PS Config. */
	memcpy_toio(io_base + MAC_REG_PSCFG, cxt_buf + MAC_REG_PSCFG,
		    MAC_REG_BBREGCTL - MAC_REG_PSCFG);

	/* restore CURR_RX_DESC_ADDR, CURR_TX_DESC_ADDR */
	iowrite32(*(u32 *)(cxt_buf + MAC_REG_TXDMAPTR0),
		  io_base + MAC_REG_TXDMAPTR0);
	iowrite32(*(u32 *)(cxt_buf + MAC_REG_AC0DMAPTR),
		  io_base + MAC_REG_AC0DMAPTR);
	iowrite32(*(u32 *)(cxt_buf + MAC_REG_BCNDMAPTR),
		  io_base + MAC_REG_BCNDMAPTR);
	iowrite32(*(u32 *)(cxt_buf + MAC_REG_RXDMAPTR0),
		  io_base + MAC_REG_RXDMAPTR0);
	iowrite32(*(u32 *)(cxt_buf + MAC_REG_RXDMAPTR1),
		  io_base + MAC_REG_RXDMAPTR1);
}

Contributors
Person Tokens Prop Commits CommitProp
malcolm priestley malcolm priestley 137 68.84% 8 57.14%
forest bond forest bond 47 23.62% 1 7.14%
charles clement charles clement 7 3.52% 2 14.29%
matteo semenzato matteo semenzato 5 2.51% 1 7.14%
jim lieb jim lieb 2 1.01% 1 7.14%
guillaume clement guillaume clement 1 0.50% 1 7.14%
Total 199 100.00% 14 100.00%

/*
 * Description:
 *      Software Reset MAC
 *
 * Parameters:
 *  In:
 *      io_base    - Base Address for MAC
 *  Out:
 *      none
 *
 * Return Value: true if Reset Success; otherwise false
 *
 */


bool MACbSoftwareReset(struct vnt_private *priv)
{
	void __iomem *io_base = priv->PortOffset;
	unsigned short ww;

	/* turn on HOSTCR_SOFTRST, just write 0x01 to reset */
	iowrite8(0x01, io_base + MAC_REG_HOSTCR);

	for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
		if (!(ioread8(io_base + MAC_REG_HOSTCR) & HOSTCR_SOFTRST))
			break;
	}
	if (ww == W_MAX_TIMEOUT)
		return false;
	return true;
}

Contributors
Person Tokens Prop Commits CommitProp
forest bond forest bond 37 49.33% 1 9.09%
malcolm priestley malcolm priestley 32 42.67% 5 45.45%
charles clement charles clement 3 4.00% 3 27.27%
jim lieb jim lieb 2 2.67% 1 9.09%
matteo semenzato matteo semenzato 1 1.33% 1 9.09%
Total 75 100.00% 11 100.00%

/*
 * Description:
 *      save some important register's value, then do reset, then restore
 *      register's value
 *
 * Parameters:
 *  In:
 *      io_base    - Base Address for MAC
 *  Out:
 *      none
 *
 * Return Value: true if success; otherwise false
 *
 */


bool MACbSafeSoftwareReset(struct vnt_private *priv)
{
	unsigned char abyTmpRegData[MAC_MAX_CONTEXT_SIZE_PAGE0+MAC_MAX_CONTEXT_SIZE_PAGE1];
	bool bRetVal;

	/* PATCH....
         * save some important register's value, then do
         * reset, then restore register's value
         */
	/* save MAC context */
	MACvSaveContext(priv, abyTmpRegData);
	/* do reset */
	bRetVal = MACbSoftwareReset(priv);
	/* restore MAC context, except CR0 */
	MACvRestoreContext(priv, abyTmpRegData);

	return bRetVal;
}

Contributors
Person Tokens Prop Commits CommitProp
malcolm priestley malcolm priestley 27 54.00% 2 33.33%
forest bond forest bond 17 34.00% 1 16.67%
matteo semenzato matteo semenzato 4 8.00% 1 16.67%
guillaume clement guillaume clement 1 2.00% 1 16.67%
charles clement charles clement 1 2.00% 1 16.67%
Total 50 100.00% 6 100.00%

/*
 * Description:
 *      Turn Off MAC Rx
 *
 * Parameters:
 *  In:
 *      io_base    - Base Address for MAC
 *  Out:
 *      none
 *
 * Return Value: true if success; otherwise false
 *
 */


bool MACbSafeRxOff(struct vnt_private *priv)
{
	void __iomem *io_base = priv->PortOffset;
	unsigned short ww;

	/* turn off wow temp for turn off Rx safely */

	/* Clear RX DMA0,1 */
	iowrite32(DMACTL_CLRRUN, io_base + MAC_REG_RXDMACTL0);
	iowrite32(DMACTL_CLRRUN, io_base + MAC_REG_RXDMACTL1);
	for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
		if (!(ioread32(io_base + MAC_REG_RXDMACTL0) & DMACTL_RUN))
			break;
	}
	if (ww == W_MAX_TIMEOUT) {
		pr_debug(" DBG_PORT80(0x10)\n");
		return false;
	}
	for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
		if (!(ioread32(io_base + MAC_REG_RXDMACTL1) & DMACTL_RUN))
			break;
	}
	if (ww == W_MAX_TIMEOUT) {
		pr_debug(" DBG_PORT80(0x11)\n");
		return false;
	}

	/* try to safe shutdown RX */
	MACvRegBitsOff(io_base, MAC_REG_HOSTCR, HOSTCR_RXON);
	/* W_MAX_TIMEOUT is the timeout period */
	for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
		if (!(ioread8(io_base + MAC_REG_HOSTCR) & HOSTCR_RXONST))
			break;
	}
	if (ww == W_MAX_TIMEOUT) {
		pr_debug(" DBG_PORT80(0x12)\n");
		return false;
	}
	return true;
}

Contributors
Person Tokens Prop Commits CommitProp
forest bond forest bond 111 56.92% 1 9.09%
malcolm priestley malcolm priestley 69 35.38% 6 54.55%
jim lieb jim lieb 6 3.08% 1 9.09%
matteo semenzato matteo semenzato 4 2.05% 1 9.09%
guillaume clement guillaume clement 3 1.54% 1 9.09%
charles clement charles clement 2 1.03% 1 9.09%
Total 195 100.00% 11 100.00%

/*
 * Description:
 *      Turn Off MAC Tx
 *
 * Parameters:
 *  In:
 *      io_base    - Base Address for MAC
 *  Out:
 *      none
 *
 * Return Value: true if success; otherwise false
 *
 */


bool MACbSafeTxOff(struct vnt_private *priv)
{
	void __iomem *io_base = priv->PortOffset;
	unsigned short ww;

	/* Clear TX DMA */
	/* Tx0 */
	iowrite32(DMACTL_CLRRUN, io_base + MAC_REG_TXDMACTL0);
	/* AC0 */
	iowrite32(DMACTL_CLRRUN, io_base + MAC_REG_AC0DMACTL);

	for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
		if (!(ioread32(io_base + MAC_REG_TXDMACTL0) & DMACTL_RUN))
			break;
	}
	if (ww == W_MAX_TIMEOUT) {
		pr_debug(" DBG_PORT80(0x20)\n");
		return false;
	}
	for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
		if (!(ioread32(io_base + MAC_REG_AC0DMACTL) & DMACTL_RUN))
			break;
	}
	if (ww == W_MAX_TIMEOUT) {
		pr_debug(" DBG_PORT80(0x21)\n");
		return false;
	}

	/* try to safe shutdown TX */
	MACvRegBitsOff(io_base, MAC_REG_HOSTCR, HOSTCR_TXON);

	/* W_MAX_TIMEOUT is the timeout period */
	for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
		if (!(ioread8(io_base + MAC_REG_HOSTCR) & HOSTCR_TXONST))
			break;
	}
	if (ww == W_MAX_TIMEOUT) {
		pr_debug(" DBG_PORT80(0x24)\n");
		return false;
	}
	return true;
}

Contributors
Person Tokens Prop Commits CommitProp
malcolm priestley malcolm priestley 98 50.00% 6 50.00%
forest bond forest bond 83 42.35% 1 8.33%
matteo semenzato matteo semenzato 5 2.55% 1 8.33%
jim lieb jim lieb 4 2.04% 1 8.33%
guillaume clement guillaume clement 3 1.53% 1 8.33%
charles clement charles clement 2 1.02% 1 8.33%
joe perches joe perches 1 0.51% 1 8.33%
Total 196 100.00% 12 100.00%

/*
 * Description:
 *      Stop MAC function
 *
 * Parameters:
 *  In:
 *      io_base    - Base Address for MAC
 *  Out:
 *      none
 *
 * Return Value: true if success; otherwise false
 *
 */


bool MACbSafeStop(struct vnt_private *priv)
{
	void __iomem *io_base = priv->PortOffset;

	MACvRegBitsOff(io_base, MAC_REG_TCR, TCR_AUTOBCNTX);

	if (!MACbSafeRxOff(priv)) {
		pr_debug(" MACbSafeRxOff == false)\n");
		MACbSafeSoftwareReset(priv);
		return false;
	}
	if (!MACbSafeTxOff(priv)) {
		pr_debug(" MACbSafeTxOff == false)\n");
		MACbSafeSoftwareReset(priv);
		return false;
	}

	MACvRegBitsOff(io_base, MAC_REG_HOSTCR, HOSTCR_MACEN);

	return true;
}

Contributors
Person Tokens Prop Commits CommitProp
malcolm priestley malcolm priestley 64 74.42% 3 60.00%
forest bond forest bond 19 22.09% 1 20.00%
guillaume clement guillaume clement 3 3.49% 1 20.00%
Total 86 100.00% 5 100.00%

/*
 * Description:
 *      Shut Down MAC
 *
 * Parameters:
 *  In:
 *      io_base    - Base Address for MAC
 *  Out:
 *      none
 *
 * Return Value: true if success; otherwise false
 *
 */


bool MACbShutdown(struct vnt_private *priv)
{
	void __iomem *io_base = priv->PortOffset;
	/* disable MAC IMR */
	MACvIntDisable(io_base);
	MACvSetLoopbackMode(priv, MAC_LB_INTERNAL);
	/* stop the adapter */
	if (!MACbSafeStop(priv)) {
		MACvSetLoopbackMode(priv, MAC_LB_NONE);
		return false;
	}
	MACvSetLoopbackMode(priv, MAC_LB_NONE);
	return true;
}

Contributors
Person Tokens Prop Commits CommitProp
malcolm priestley malcolm priestley 37 58.73% 3 50.00%
forest bond forest bond 21 33.33% 1 16.67%
guillaume clement guillaume clement 3 4.76% 1 16.67%
matteo semenzato matteo semenzato 2 3.17% 1 16.67%
Total 63 100.00% 6 100.00%

/*
 * Description:
 *      Initialize MAC
 *
 * Parameters:
 *  In:
 *      io_base    - Base Address for MAC
 *  Out:
 *      none
 *
 * Return Value: none
 *
 */


void MACvInitialize(struct vnt_private *priv)
{
	void __iomem *io_base = priv->PortOffset;
	/* clear sticky bits */
	MACvClearStckDS(io_base);
	/* disable force PME-enable */
	iowrite8(PME_OVR, io_base + MAC_REG_PMC1);
	/* only 3253 A */

	/* do reset */
	MACbSoftwareReset(priv);

	/* reset TSF counter */
	iowrite8(TFTCTL_TSFCNTRST, io_base + MAC_REG_TFTCTL);
	/* enable TSF counter */
	iowrite8(TFTCTL_TSFCNTREN, io_base + MAC_REG_TFTCTL);
}

Contributors
Person Tokens Prop Commits CommitProp
malcolm priestley malcolm priestley 44 70.97% 4 66.67%
forest bond forest bond 12 19.35% 1 16.67%
matteo semenzato matteo semenzato 6 9.68% 1 16.67%
Total 62 100.00% 6 100.00%

/*
 * Description:
 *      Set the chip with current rx descriptor address
 *
 * Parameters:
 *  In:
 *      io_base        - Base Address for MAC
 *      curr_desc_addr  - Descriptor Address
 *  Out:
 *      none
 *
 * Return Value: none
 *
 */


void MACvSetCurrRx0DescAddr(struct vnt_private *priv, u32 curr_desc_addr)
{
	void __iomem *io_base = priv->PortOffset;
	unsigned short ww;
	unsigned char org_dma_ctl;

	org_dma_ctl = ioread8(io_base + MAC_REG_RXDMACTL0);
	if (org_dma_ctl & DMACTL_RUN)
		iowrite8(DMACTL_RUN, io_base + MAC_REG_RXDMACTL0 + 2);

	for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
		if (!(ioread8(io_base + MAC_REG_RXDMACTL0) & DMACTL_RUN))
			break;
	}

	iowrite32(curr_desc_addr, io_base + MAC_REG_RXDMAPTR0);
	if (org_dma_ctl & DMACTL_RUN)
		iowrite8(DMACTL_RUN, io_base + MAC_REG_RXDMACTL0);
}

Contributors
Person Tokens Prop Commits CommitProp
malcolm priestley malcolm priestley 64 58.18% 10 66.67%
forest bond forest bond 40 36.36% 1 6.67%
jim lieb jim lieb 3 2.73% 1 6.67%
charles clement charles clement 2 1.82% 2 13.33%
guillaume clement guillaume clement 1 0.91% 1 6.67%
Total 110 100.00% 15 100.00%

/*
 * Description:
 *      Set the chip with current rx descriptor address
 *
 * Parameters:
 *  In:
 *      io_base        - Base Address for MAC
 *      curr_desc_addr  - Descriptor Address
 *  Out:
 *      none
 *
 * Return Value: none
 *
 */


void MACvSetCurrRx1DescAddr(struct vnt_private *priv, u32 curr_desc_addr)
{
	void __iomem *io_base = priv->PortOffset;
	unsigned short ww;
	unsigned char org_dma_ctl;

	org_dma_ctl = ioread8(io_base + MAC_REG_RXDMACTL1);
	if (org_dma_ctl & DMACTL_RUN)
		iowrite8(DMACTL_RUN, io_base + MAC_REG_RXDMACTL1 + 2);

	for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
		if (!(ioread8(io_base + MAC_REG_RXDMACTL1) & DMACTL_RUN))
			break;
	}

	iowrite32(curr_desc_addr, io_base + MAC_REG_RXDMAPTR1);
	if (org_dma_ctl & DMACTL_RUN)
		iowrite8(DMACTL_RUN, io_base + MAC_REG_RXDMACTL1);

}

Contributors
Person Tokens Prop Commits CommitProp
malcolm priestley malcolm priestley 68 61.82% 10 66.67%
forest bond forest bond 38 34.55% 1 6.67%
charles clement charles clement 2 1.82% 2 13.33%
jim lieb jim lieb 1 0.91% 1 6.67%
guillaume clement guillaume clement 1 0.91% 1 6.67%
Total 110 100.00% 15 100.00%

/*
 * Description:
 *      Set the chip with current tx0 descriptor address
 *
 * Parameters:
 *  In:
 *      io_base        - Base Address for MAC
 *      curr_desc_addr  - Descriptor Address
 *  Out:
 *      none
 *
 * Return Value: none
 *
 */


void MACvSetCurrTx0DescAddrEx(struct vnt_private *priv,
			      u32 curr_desc_addr)
{
	void __iomem *io_base = priv->PortOffset;
	unsigned short ww;
	unsigned char org_dma_ctl;

	org_dma_ctl = ioread8(io_base + MAC_REG_TXDMACTL0);
	if (org_dma_ctl & DMACTL_RUN)
		iowrite8(DMACTL_RUN, io_base + MAC_REG_TXDMACTL0 + 2);

	for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
		if (!(ioread8(io_base + MAC_REG_TXDMACTL0) & DMACTL_RUN))
			break;
	}

	iowrite32(curr_desc_addr, io_base + MAC_REG_TXDMAPTR0);
	if (org_dma_ctl & DMACTL_RUN)
		iowrite8(DMACTL_RUN, io_base + MAC_REG_TXDMACTL0);
}

Contributors
Person Tokens Prop Commits CommitProp
malcolm priestley malcolm priestley 68 61.82% 10 71.43%
forest bond forest bond 38 34.55% 1 7.14%
charles clement charles clement 2 1.82% 1 7.14%
guillaume clement guillaume clement 1 0.91% 1 7.14%
jim lieb jim lieb 1 0.91% 1 7.14%
Total 110 100.00% 14 100.00%

/*
 * Description:
 *      Set the chip with current AC0 descriptor address
 *
 * Parameters:
 *  In:
 *      io_base        - Base Address for MAC
 *      curr_desc_addr  - Descriptor Address
 *  Out:
 *      none
 *
 * Return Value: none
 *
 */
/* TxDMA1 = AC0DMA */


void MACvSetCurrAC0DescAddrEx(struct vnt_private *priv,
			      u32 curr_desc_addr)
{
	void __iomem *io_base = priv->PortOffset;
	unsigned short ww;
	unsigned char org_dma_ctl;

	org_dma_ctl = ioread8(io_base + MAC_REG_AC0DMACTL);
	if (org_dma_ctl & DMACTL_RUN)
		iowrite8(DMACTL_RUN, io_base + MAC_REG_AC0DMACTL + 2);

	for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
		if (!(ioread8(io_base + MAC_REG_AC0DMACTL) & DMACTL_RUN))
			break;
	}
	if (ww == W_MAX_TIMEOUT)
		pr_debug(" DBG_PORT80(0x26)\n");
	iowrite32(curr_desc_addr, io_base + MAC_REG_AC0DMAPTR);
	if (org_dma_ctl & DMACTL_RUN)
		iowrite8(DMACTL_RUN, io_base + MAC_REG_AC0DMACTL);
}

Contributors
Person Tokens Prop Commits CommitProp
malcolm priestley malcolm priestley 78 64.46% 10 71.43%
forest bond forest bond 39 32.23% 1 7.14%
charles clement charles clement 2 1.65% 1 7.14%
guillaume clement guillaume clement 1 0.83% 1 7.14%
joe perches joe perches 1 0.83% 1 7.14%
Total 121 100.00% 14 100.00%



void MACvSetCurrTXDescAddr(int iTxType, struct vnt_private *priv,
			   u32 curr_desc_addr)
{
	if (iTxType == TYPE_AC0DMA)
		MACvSetCurrAC0DescAddrEx(priv, curr_desc_addr);
	else if (iTxType == TYPE_TXDMA0)
		MACvSetCurrTx0DescAddrEx(priv, curr_desc_addr);
}

Contributors
Person Tokens Prop Commits CommitProp
malcolm priestley malcolm priestley 35 81.40% 4 80.00%
forest bond forest bond 8 18.60% 1 20.00%
Total 43 100.00% 5 100.00%

/*
 * Description:
 *      Micro Second Delay via MAC
 *
 * Parameters:
 *  In:
 *      io_base    - Base Address for MAC
 *      uDelay      - Delay time (timer resolution is 4 us)
 *  Out:
 *      none
 *
 * Return Value: none
 *
 */


void MACvTimer0MicroSDelay(struct vnt_private *priv, unsigned int uDelay)
{
	void __iomem *io_base = priv->PortOffset;
	unsigned char byValue;
	unsigned int uu, ii;

	iowrite8(0, io_base + MAC_REG_TMCTL0);
	iowrite32(uDelay, io_base + MAC_REG_TMDATA0);
	iowrite8((TMCTL_TMD | TMCTL_TE), io_base + MAC_REG_TMCTL0);
	for (ii = 0; ii < 66; ii++) {  /* assume max PCI clock is 66Mhz */
		for (uu = 0; uu < uDelay; uu++) {
			byValue = ioread8(io_base + MAC_REG_TMCTL0);
			if ((byValue == 0) ||
			    (byValue & TMCTL_TSUSP)) {
				iowrite8(0, io_base + MAC_REG_TMCTL0);
				return;
			}
		}
	}
	iowrite8(0, io_base + MAC_REG_TMCTL0);
}

Contributors
Person Tokens Prop Commits CommitProp
malcolm priestley malcolm priestley 100 71.94% 6 75.00%
forest bond forest bond 38 27.34% 1 12.50%
matteo semenzato matteo semenzato 1 0.72% 1 12.50%
Total 139 100.00% 8 100.00%

/*
 * Description:
 *      Micro Second One shot timer via MAC
 *
 * Parameters:
 *  In:
 *      io_base    - Base Address for MAC
 *      uDelay      - Delay time
 *  Out:
 *      none
 *
 * Return Value: none
 *
 */


void MACvOneShotTimer1MicroSec(struct vnt_private *priv,
			       unsigned int uDelayTime)
{
	void __iomem *io_base = priv->PortOffset;

	iowrite8(0, io_base + MAC_REG_TMCTL1);
	iowrite32(uDelayTime, io_base + MAC_REG_TMDATA1);
	iowrite8((TMCTL_TMD | TMCTL_TE), io_base + MAC_REG_TMCTL1);
}

Contributors
Person Tokens Prop Commits CommitProp
malcolm priestley malcolm priestley 34 62.96% 5 62.50%
forest bond forest bond 17 31.48% 1 12.50%
charles clement charles clement 2 3.70% 1 12.50%
guillaume clement guillaume clement 1 1.85% 1 12.50%
Total 54 100.00% 8 100.00%



void MACvSetMISCFifo(struct vnt_private *priv, unsigned short offset,
		     u32 data)
{
	void __iomem *io_base = priv->PortOffset;

	if (offset > 273)
		return;
	iowrite16(offset, io_base + MAC_REG_MISCFFNDEX);
	iowrite32(data, io_base + MAC_REG_MISCFFDATA);
	iowrite16(MISCFFCTL_WRITE, io_base + MAC_REG_MISCFFCTL);
}

Contributors
Person Tokens Prop Commits CommitProp
malcolm priestley malcolm priestley 34 56.67% 8 66.67%
forest bond forest bond 23 38.33% 1 8.33%
charles clement charles clement 2 3.33% 2 16.67%
guillaume clement guillaume clement 1 1.67% 1 8.33%
Total 60 100.00% 12 100.00%



bool MACbPSWakeup(struct vnt_private *priv)
{
	void __iomem *io_base = priv->PortOffset;
	unsigned int ww;
	/* Read PSCTL */
	if (MACbIsRegBitsOff(priv, MAC_REG_PSCTL, PSCTL_PS))
		return true;

	/* Disable PS */
	MACvRegBitsOff(io_base, MAC_REG_PSCTL, PSCTL_PSEN);

	/* Check if SyncFlushOK */
	for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
		if (ioread8(io_base + MAC_REG_PSCTL) & PSCTL_WAKEDONE)
			break;
	}
	if (ww == W_MAX_TIMEOUT) {
		pr_debug(" DBG_PORT80(0x33)\n");
		return false;
	}
	return true;
}

Contributors
Person Tokens Prop Commits CommitProp
malcolm priestley malcolm priestley 74 77.89% 4 44.44%
forest bond forest bond 13 13.68% 1 11.11%
guillaume clement guillaume clement 3 3.16% 1 11.11%
matteo semenzato matteo semenzato 3 3.16% 1 11.11%
joe perches joe perches 1 1.05% 1 11.11%
charles clement charles clement 1 1.05% 1 11.11%
Total 95 100.00% 9 100.00%

/*
 * Description:
 *      Set the Key by MISCFIFO
 *
 * Parameters:
 *  In:
 *      io_base        - Base Address for MAC
 *
 *  Out:
 *      none
 *
 * Return Value: none
 *
 */



void MACvSetKeyEntry(struct vnt_private *priv, unsigned short wKeyCtl,
		     unsigned int uEntryIdx, unsigned int uKeyIdx,
		     unsigned char *pbyAddr, u32 *pdwKey,
		     unsigned char byLocalID)
{
	void __iomem *io_base = priv->PortOffset;
	unsigned short offset;
	u32 data;
	int     ii;

	if (byLocalID <= 1)
		return;

	pr_debug("MACvSetKeyEntry\n");
	offset = MISCFIFO_KEYETRY0;
	offset += (uEntryIdx * MISCFIFO_KEYENTRYSIZE);

	data = 0;
	data |= wKeyCtl;
	data <<= 16;
	data |= MAKEWORD(*(pbyAddr + 4), *(pbyAddr + 5));
	pr_debug("1. offset: %d, Data: %X, KeyCtl:%X\n",
		 offset, data, wKeyCtl);

	iowrite16(offset, io_base + MAC_REG_MISCFFNDEX);
	iowrite32(data, io_base + MAC_REG_MISCFFDATA);
	iowrite16(MISCFFCTL_WRITE, io_base + MAC_REG_MISCFFCTL);
	offset++;

	data = 0;
	data |= *(pbyAddr + 3);
	data <<= 8;
	data |= *(pbyAddr + 2);
	data <<= 8;
	data |= *(pbyAddr + 1);
	data <<= 8;
	data |= *pbyAddr;
	pr_debug("2. offset: %d, Data: %X\n", offset, data);

	iowrite16(offset, io_base + MAC_REG_MISCFFNDEX);
	iowrite32(data, io_base + MAC_REG_MISCFFDATA);
	iowrite16(MISCFFCTL_WRITE, io_base + MAC_REG_MISCFFCTL);
	offset++;

	offset += (uKeyIdx * 4);
	for (ii = 0; ii < 4; ii++) {
		/* always push 128 bits */
		pr_debug("3.(%d) offset: %d, Data: %X\n",
			 ii, offset + ii, *pdwKey);
		iowrite16(offset + ii, io_base + MAC_REG_MISCFFNDEX);
		iowrite32(*pdwKey++, io_base + MAC_REG_MISCFFDATA);
		iowrite16(MISCFFCTL_WRITE, io_base + MAC_REG_MISCFFCTL);
	}
}

Contributors
Person Tokens Prop Commits CommitProp
malcolm priestley malcolm priestley 168 54.90% 7 46.67%
forest bond forest bond 124 40.52% 1 6.67%
charles clement charles clement 10 3.27% 4 26.67%
joe perches joe perches 2 0.65% 1 6.67%
matteo semenzato matteo semenzato 1 0.33% 1 6.67%
guillaume clement guillaume clement 1 0.33% 1 6.67%
Total 306 100.00% 15 100.00%

/*
 * Description:
 *      Disable the Key Entry by MISCFIFO
 *
 * Parameters:
 *  In:
 *      io_base        - Base Address for MAC
 *
 *  Out:
 *      none
 *
 * Return Value: none
 *
 */


void MACvDisableKeyEntry(struct vnt_private *priv, unsigned int uEntryIdx)
{
	void __iomem *io_base = priv->PortOffset;
	unsigned short offset;

	offset = MISCFIFO_KEYETRY0;
	offset += (uEntryIdx * MISCFIFO_KEYENTRYSIZE);

	iowrite16(offset, io_base + MAC_REG_MISCFFNDEX);
	iowrite32(0, io_base + MAC_REG_MISCFFDATA);
	iowrite16(MISCFFCTL_WRITE, io_base + MAC_REG_MISCFFCTL);
}
Contributors
Person Tokens Prop Commits CommitProp
forest bond forest bond 33 50.00% 1 10.00%
malcolm priestley malcolm priestley 28 42.42% 6 60.00%
charles clement charles clement 4 6.06% 2 20.00%
guillaume clement guillaume clement 1 1.52% 1 10.00%
Total 66 100.00% 10 100.00%

Overall Contributors
Person Tokens Prop Commits CommitProp
malcolm priestley malcolm priestley 1436 58.47% 19 55.88%
forest bond forest bond 853 34.73% 1 2.94%
charles clement charles clement 63 2.57% 9 26.47%
matteo semenzato matteo semenzato 38 1.55% 1 2.94%
guillaume clement guillaume clement 34 1.38% 1 2.94%
jim lieb jim lieb 25 1.02% 1 2.94%
joe perches joe perches 5 0.20% 1 2.94%
kathryn hampton kathryn hampton 2 0.08% 1 2.94%
Total 2456 100.00% 34 100.00%
  Directory: drivers/staging/vt6655
	Person	Tokens	Prop	Commits	CommitProp
malcolm priestley	malcolm priestley	16	39.02%	3	37.50%
forest bond	forest bond	15	36.59%	1	12.50%
charles clement	charles clement	5	12.20%	2	25.00%
jim lieb	jim lieb	4	9.76%	1	12.50%
guillaume clement	guillaume clement	1	2.44%	1	12.50%
	Total	41	100.00%	8	100.00%
cregit-Linux how code gets into the kernel

Release 4.9 drivers/staging/vt6655/mac.c

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