[linux-2.6-block.git] / drivers / net / wireless / iwlwifi / iwl-3945-io.h

/******************************************************************************
 *
 * Copyright(c) 2003 - 2008 Intel Corporation. All rights reserved.
 *
 * Portions of this file are derived from the ipw3945 project.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * 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, USA
 *
 * The full GNU General Public License is included in this distribution in the
 * file called LICENSE.
 *
 * Contact Information:
 * James P. Ketrenos <ipw2100-admin@linux.intel.com>
 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
 *
 *****************************************************************************/

#ifndef __iwl3945_io_h__
#define __iwl3945_io_h__

#include <linux/io.h>

#include "iwl-3945-debug.h"

/*
 * IO, register, and NIC memory access functions
 *
 * NOTE on naming convention and macro usage for these
 *
 * A single _ prefix before a an access function means that no state
 * check or debug information is printed when that function is called.
 *
 * A double __ prefix before an access function means that state is checked
 * and the current line number is printed in addition to any other debug output.
 *
 * The non-prefixed name is the #define that maps the caller into a
 * #define that provides the caller's __LINE__ to the double prefix version.
 *
 * If you wish to call the function without any debug or state checking,
 * you should use the single _ prefix version (as is used by dependent IO
 * routines, for example _iwl3945_read_direct32 calls the non-check version of
 * _iwl3945_read32.)
 *
 * These declarations are *extremely* useful in quickly isolating code deltas
 * which result in misconfiguring of the hardware I/O.  In combination with
 * git-bisect and the IO debug level you can quickly determine the specific
 * commit which breaks the IO sequence to the hardware.
 *
 */

#define _iwl3945_write32(priv, ofs, val) writel((val), (priv)->hw_base + (ofs))
#ifdef CONFIG_IWL3945_DEBUG
static inline void __iwl3945_write32(const char *f, u32 l, struct iwl3945_priv *priv,
				 u32 ofs, u32 val)
{
	IWL_DEBUG_IO("write32(0x%08X, 0x%08X) - %s %d\n", ofs, val, f, l);
	_iwl3945_write32(priv, ofs, val);
}
#define iwl3945_write32(priv, ofs, val) \
	__iwl3945_write32(__FILE__, __LINE__, priv, ofs, val)
#else
#define iwl3945_write32(priv, ofs, val) _iwl3945_write32(priv, ofs, val)
#endif

#define _iwl3945_read32(priv, ofs) readl((priv)->hw_base + (ofs))
#ifdef CONFIG_IWL3945_DEBUG
static inline u32 __iwl3945_read32(char *f, u32 l, struct iwl3945_priv *priv, u32 ofs)
{
	IWL_DEBUG_IO("read_direct32(0x%08X) - %s %d\n", ofs, f, l);
	return _iwl3945_read32(priv, ofs);
}
#define iwl3945_read32(priv, ofs) __iwl3945_read32(__FILE__, __LINE__, priv, ofs)
#else
#define iwl3945_read32(p, o) _iwl3945_read32(p, o)
#endif

static inline int _iwl3945_poll_bit(struct iwl3945_priv *priv, u32 addr,
				u32 bits, u32 mask, int timeout)
{
	int i = 0;

	do {
		if ((_iwl3945_read32(priv, addr) & mask) == (bits & mask))
			return i;
		mdelay(10);
		i += 10;
	} while (i < timeout);

	return -ETIMEDOUT;
}
#ifdef CONFIG_IWL3945_DEBUG
static inline int __iwl3945_poll_bit(const char *f, u32 l,
				 struct iwl3945_priv *priv, u32 addr,
				 u32 bits, u32 mask, int timeout)
{
	int ret = _iwl3945_poll_bit(priv, addr, bits, mask, timeout);
	IWL_DEBUG_IO("poll_bit(0x%08X, 0x%08X, 0x%08X) - %s- %s %d\n",
		      addr, bits, mask,
		      unlikely(ret  == -ETIMEDOUT)?"timeout":"", f, l);
	return ret;
}
#define iwl3945_poll_bit(priv, addr, bits, mask, timeout) \
	__iwl3945_poll_bit(__FILE__, __LINE__, priv, addr, bits, mask, timeout)
#else
#define iwl3945_poll_bit(p, a, b, m, t) _iwl3945_poll_bit(p, a, b, m, t)
#endif

static inline void _iwl3945_set_bit(struct iwl3945_priv *priv, u32 reg, u32 mask)
{
	_iwl3945_write32(priv, reg, _iwl3945_read32(priv, reg) | mask);
}
#ifdef CONFIG_IWL3945_DEBUG
static inline void __iwl3945_set_bit(const char *f, u32 l,
				 struct iwl3945_priv *priv, u32 reg, u32 mask)
{
	u32 val = _iwl3945_read32(priv, reg) | mask;
	IWL_DEBUG_IO("set_bit(0x%08X, 0x%08X) = 0x%08X\n", reg, mask, val);
	_iwl3945_write32(priv, reg, val);
}
#define iwl3945_set_bit(p, r, m) __iwl3945_set_bit(__FILE__, __LINE__, p, r, m)
#else
#define iwl3945_set_bit(p, r, m) _iwl3945_set_bit(p, r, m)
#endif

static inline void _iwl3945_clear_bit(struct iwl3945_priv *priv, u32 reg, u32 mask)
{
	_iwl3945_write32(priv, reg, _iwl3945_read32(priv, reg) & ~mask);
}
#ifdef CONFIG_IWL3945_DEBUG
static inline void __iwl3945_clear_bit(const char *f, u32 l,
				   struct iwl3945_priv *priv, u32 reg, u32 mask)
{
	u32 val = _iwl3945_read32(priv, reg) & ~mask;
	IWL_DEBUG_IO("clear_bit(0x%08X, 0x%08X) = 0x%08X\n", reg, mask, val);
	_iwl3945_write32(priv, reg, val);
}
#define iwl3945_clear_bit(p, r, m) __iwl3945_clear_bit(__FILE__, __LINE__, p, r, m)
#else
#define iwl3945_clear_bit(p, r, m) _iwl3945_clear_bit(p, r, m)
#endif

static inline int _iwl3945_grab_nic_access(struct iwl3945_priv *priv)
{
	int ret;
	u32 gp_ctl;

#ifdef CONFIG_IWL3945_DEBUG
	if (atomic_read(&priv->restrict_refcnt))
		return 0;
#endif
	if (test_bit(STATUS_RF_KILL_HW, &priv->status) ||
	    test_bit(STATUS_RF_KILL_SW, &priv->status)) {
		IWL_WARNING("WARNING: Requesting MAC access during RFKILL "
			"wakes up NIC\n");

		/* 10 msec allows time for NIC to complete its data save */
		gp_ctl = _iwl3945_read32(priv, CSR_GP_CNTRL);
		if (gp_ctl & CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY) {
			IWL_DEBUG_RF_KILL("Wait for complete power-down, "
				"gpctl = 0x%08x\n", gp_ctl);
			mdelay(10);
		} else
			IWL_DEBUG_RF_KILL("power-down complete, "
					  "gpctl = 0x%08x\n", gp_ctl);
	}

	/* this bit wakes up the NIC */
	_iwl3945_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
	ret = _iwl3945_poll_bit(priv, CSR_GP_CNTRL,
			   CSR_GP_CNTRL_REG_VAL_MAC_ACCESS_EN,
			   (CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY |
			    CSR_GP_CNTRL_REG_FLAG_GOING_TO_SLEEP), 50);
	if (ret < 0) {
		IWL_ERROR("MAC is in deep sleep!\n");
		return -EIO;
	}

#ifdef CONFIG_IWL3945_DEBUG
	atomic_inc(&priv->restrict_refcnt);
#endif
	return 0;
}

#ifdef CONFIG_IWL3945_DEBUG
static inline int __iwl3945_grab_nic_access(const char *f, u32 l,
					       struct iwl3945_priv *priv)
{
	if (atomic_read(&priv->restrict_refcnt))
		IWL_DEBUG_INFO("Grabbing access while already held at "
			       "line %d.\n", l);

	IWL_DEBUG_IO("grabbing nic access - %s %d\n", f, l);
	return _iwl3945_grab_nic_access(priv);
}
#define iwl3945_grab_nic_access(priv) \
	__iwl3945_grab_nic_access(__FILE__, __LINE__, priv)
#else
#define iwl3945_grab_nic_access(priv) \
	_iwl3945_grab_nic_access(priv)
#endif

static inline void _iwl3945_release_nic_access(struct iwl3945_priv *priv)
{
#ifdef CONFIG_IWL3945_DEBUG
	if (atomic_dec_and_test(&priv->restrict_refcnt))
#endif
		_iwl3945_clear_bit(priv, CSR_GP_CNTRL,
			       CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
}
#ifdef CONFIG_IWL3945_DEBUG
static inline void __iwl3945_release_nic_access(const char *f, u32 l,
					    struct iwl3945_priv *priv)
{
	if (atomic_read(&priv->restrict_refcnt) <= 0)
		IWL_ERROR("Release unheld nic access at line %d.\n", l);

	IWL_DEBUG_IO("releasing nic access - %s %d\n", f, l);
	_iwl3945_release_nic_access(priv);
}
#define iwl3945_release_nic_access(priv) \
	__iwl3945_release_nic_access(__FILE__, __LINE__, priv)
#else
#define iwl3945_release_nic_access(priv) \
	_iwl3945_release_nic_access(priv)
#endif

static inline u32 _iwl3945_read_direct32(struct iwl3945_priv *priv, u32 reg)
{
	return _iwl3945_read32(priv, reg);
}
#ifdef CONFIG_IWL3945_DEBUG
static inline u32 __iwl3945_read_direct32(const char *f, u32 l,
					struct iwl3945_priv *priv, u32 reg)
{
	u32 value = _iwl3945_read_direct32(priv, reg);
	if (!atomic_read(&priv->restrict_refcnt))
		IWL_ERROR("Nic access not held from %s %d\n", f, l);
	IWL_DEBUG_IO("read_direct32(0x%4X) = 0x%08x - %s %d \n", reg, value,
		     f, l);
	return value;
}
#define iwl3945_read_direct32(priv, reg) \
	__iwl3945_read_direct32(__FILE__, __LINE__, priv, reg)
#else
#define iwl3945_read_direct32 _iwl3945_read_direct32
#endif

static inline void _iwl3945_write_direct32(struct iwl3945_priv *priv,
					 u32 reg, u32 value)
{
	_iwl3945_write32(priv, reg, value);
}
#ifdef CONFIG_IWL3945_DEBUG
static void __iwl3945_write_direct32(u32 line,
				   struct iwl3945_priv *priv, u32 reg, u32 value)
{
	if (!atomic_read(&priv->restrict_refcnt))
		IWL_ERROR("Nic access not held from line %d\n", line);
	_iwl3945_write_direct32(priv, reg, value);
}
#define iwl3945_write_direct32(priv, reg, value) \
	__iwl3945_write_direct32(__LINE__, priv, reg, value)
#else
#define iwl3945_write_direct32 _iwl3945_write_direct32
#endif

static inline void iwl3945_write_reg_buf(struct iwl3945_priv *priv,
					       u32 reg, u32 len, u32 *values)
{
	u32 count = sizeof(u32);

	if ((priv != NULL) && (values != NULL)) {
		for (; 0 < len; len -= count, reg += count, values++)
			_iwl3945_write_direct32(priv, reg, *values);
	}
}

static inline int _iwl3945_poll_direct_bit(struct iwl3945_priv *priv,
					   u32 addr, u32 mask, int timeout)
{
	int i = 0;

	do {
		if ((_iwl3945_read_direct32(priv, addr) & mask) == mask)
			return i;
		mdelay(10);
		i += 10;
	} while (i < timeout);

	return -ETIMEDOUT;
}

#ifdef CONFIG_IWL3945_DEBUG
static inline int __iwl3945_poll_direct_bit(const char *f, u32 l,
					    struct iwl3945_priv *priv,
					    u32 addr, u32 mask, int timeout)
{
	int ret  = _iwl3945_poll_direct_bit(priv, addr, mask, timeout);

	if (unlikely(ret == -ETIMEDOUT))
		IWL_DEBUG_IO("poll_direct_bit(0x%08X, 0x%08X) - "
			     "timedout - %s %d\n", addr, mask, f, l);
	else
		IWL_DEBUG_IO("poll_direct_bit(0x%08X, 0x%08X) = 0x%08X "
			     "- %s %d\n", addr, mask, ret, f, l);
	return ret;
}
#define iwl3945_poll_direct_bit(priv, addr, mask, timeout) \
	__iwl3945_poll_direct_bit(__FILE__, __LINE__, priv, addr, mask, timeout)
#else
#define iwl3945_poll_direct_bit _iwl3945_poll_direct_bit
#endif

static inline u32 _iwl3945_read_prph(struct iwl3945_priv *priv, u32 reg)
{
	_iwl3945_write_direct32(priv, HBUS_TARG_PRPH_RADDR, reg | (3 << 24));
	return _iwl3945_read_direct32(priv, HBUS_TARG_PRPH_RDAT);
}
#ifdef CONFIG_IWL3945_DEBUG
static inline u32 __iwl3945_read_prph(u32 line, struct iwl3945_priv *priv, u32 reg)
{
	if (!atomic_read(&priv->restrict_refcnt))
		IWL_ERROR("Nic access not held from line %d\n", line);
	return _iwl3945_read_prph(priv, reg);
}

#define iwl3945_read_prph(priv, reg) \
	__iwl3945_read_prph(__LINE__, priv, reg)
#else
#define iwl3945_read_prph _iwl3945_read_prph
#endif

static inline void _iwl3945_write_prph(struct iwl3945_priv *priv,
					     u32 addr, u32 val)
{
	_iwl3945_write_direct32(priv, HBUS_TARG_PRPH_WADDR,
			      ((addr & 0x0000FFFF) | (3 << 24)));
	_iwl3945_write_direct32(priv, HBUS_TARG_PRPH_WDAT, val);
}
#ifdef CONFIG_IWL3945_DEBUG
static inline void __iwl3945_write_prph(u32 line, struct iwl3945_priv *priv,
					      u32 addr, u32 val)
{
	if (!atomic_read(&priv->restrict_refcnt))
		IWL_ERROR("Nic access from line %d\n", line);
	_iwl3945_write_prph(priv, addr, val);
}

#define iwl3945_write_prph(priv, addr, val) \
	__iwl3945_write_prph(__LINE__, priv, addr, val);
#else
#define iwl3945_write_prph _iwl3945_write_prph
#endif

#define _iwl3945_set_bits_prph(priv, reg, mask) \
	_iwl3945_write_prph(priv, reg, (_iwl3945_read_prph(priv, reg) | mask))
#ifdef CONFIG_IWL3945_DEBUG
static inline void __iwl3945_set_bits_prph(u32 line, struct iwl3945_priv *priv,
					u32 reg, u32 mask)
{
	if (!atomic_read(&priv->restrict_refcnt))
		IWL_ERROR("Nic access not held from line %d\n", line);

	_iwl3945_set_bits_prph(priv, reg, mask);
}
#define iwl3945_set_bits_prph(priv, reg, mask) \
	__iwl3945_set_bits_prph(__LINE__, priv, reg, mask)
#else
#define iwl3945_set_bits_prph _iwl3945_set_bits_prph
#endif

#define _iwl3945_set_bits_mask_prph(priv, reg, bits, mask) \
	_iwl3945_write_prph(priv, reg, ((_iwl3945_read_prph(priv, reg) & mask) | bits))

#ifdef CONFIG_IWL3945_DEBUG
static inline void __iwl3945_set_bits_mask_prph(u32 line,
		struct iwl3945_priv *priv, u32 reg, u32 bits, u32 mask)
{
	if (!atomic_read(&priv->restrict_refcnt))
		IWL_ERROR("Nic access not held from line %d\n", line);
	_iwl3945_set_bits_mask_prph(priv, reg, bits, mask);
}
#define iwl3945_set_bits_mask_prph(priv, reg, bits, mask) \
	__iwl3945_set_bits_mask_prph(__LINE__, priv, reg, bits, mask)
#else
#define iwl3945_set_bits_mask_prph _iwl3945_set_bits_mask_prph
#endif

static inline void iwl3945_clear_bits_prph(struct iwl3945_priv
						 *priv, u32 reg, u32 mask)
{
	u32 val = _iwl3945_read_prph(priv, reg);
	_iwl3945_write_prph(priv, reg, (val & ~mask));
}

static inline u32 iwl3945_read_targ_mem(struct iwl3945_priv *priv, u32 addr)
{
	iwl3945_write_direct32(priv, HBUS_TARG_MEM_RADDR, addr);
	return iwl3945_read_direct32(priv, HBUS_TARG_MEM_RDAT);
}

static inline void iwl3945_write_targ_mem(struct iwl3945_priv *priv, u32 addr, u32 val)
{
	iwl3945_write_direct32(priv, HBUS_TARG_MEM_WADDR, addr);
	iwl3945_write_direct32(priv, HBUS_TARG_MEM_WDAT, val);
}

static inline void iwl3945_write_targ_mem_buf(struct iwl3945_priv *priv, u32 addr,
					  u32 len, u32 *values)
{
	iwl3945_write_direct32(priv, HBUS_TARG_MEM_WADDR, addr);
	for (; 0 < len; len -= sizeof(u32), values++)
		iwl3945_write_direct32(priv, HBUS_TARG_MEM_WDAT, *values);
}
#endif
Commit	Line	Data
b481de9c ZY	1	/******************************************************************************
b481de9c ZY	2	*
eb7ae89c	3	* Copyright(c) 2003 - 2008 Intel Corporation. All rights reserved.
b481de9c ZY	4	*
	5	* Portions of this file are derived from the ipw3945 project.
	6	*
	7	* This program is free software; you can redistribute it and/or modify it
	8	* under the terms of version 2 of the GNU General Public License as
	9	* published by the Free Software Foundation.
	10	*
	11	* This program is distributed in the hope that it will be useful, but WITHOUT
	12	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	13	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
	14	* more details.
	15	*
	16	* You should have received a copy of the GNU General Public License along with
	17	* this program; if not, write to the Free Software Foundation, Inc.,
	18	* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
	19	*
	20	* The full GNU General Public License is included in this distribution in the
	21	* file called LICENSE.
	22	*
	23	* Contact Information:
	24	* James P. Ketrenos <ipw2100-admin@linux.intel.com>
	25	* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
	26	*
	27	*****************************************************************************/
	28
bb8c093b CH	29	#ifndef __iwl3945_io_h__
bb8c093b CH	30	#define __iwl3945_io_h__
b481de9c ZY	31
	32	#include <linux/io.h>
	33
5d08cd1d	34	#include "iwl-3945-debug.h"
b481de9c ZY	35
	36	/*
	37	* IO, register, and NIC memory access functions
	38	*
	39	* NOTE on naming convention and macro usage for these
	40	*
	41	* A single _ prefix before a an access function means that no state
	42	* check or debug information is printed when that function is called.
	43	*
	44	* A double __ prefix before an access function means that state is checked
ac17a947	45	* and the current line number is printed in addition to any other debug output.
b481de9c ZY	46	*
	47	* The non-prefixed name is the #define that maps the caller into a
	48	* #define that provides the caller's __LINE__ to the double prefix version.
	49	*
	50	* If you wish to call the function without any debug or state checking,
	51	* you should use the single _ prefix version (as is used by dependent IO
bb8c093b CH	52	* routines, for example _iwl3945_read_direct32 calls the non-check version of
bb8c093b CH	53	* _iwl3945_read32.)
b481de9c ZY	54	*
	55	* These declarations are extremely useful in quickly isolating code deltas
	56	* which result in misconfiguring of the hardware I/O. In combination with
	57	* git-bisect and the IO debug level you can quickly determine the specific
	58	* commit which breaks the IO sequence to the hardware.
	59	*
	60	*/
	61
5c1b0958	62	#define _iwl3945_write32(priv, ofs, val) writel((val), (priv)->hw_base + (ofs))
c8b0e6e1	63	#ifdef CONFIG_IWL3945_DEBUG
5c1b0958	64	static inline void __iwl3945_write32(const char f, u32 l, struct iwl3945_priv priv,
b481de9c ZY	65	u32 ofs, u32 val)
b481de9c ZY	66	{
ac17a947	67	IWL_DEBUG_IO("write32(0x%08X, 0x%08X) - %s %d\n", ofs, val, f, l);
5c1b0958	68	_iwl3945_write32(priv, ofs, val);
b481de9c	69	}
5c1b0958 TW	70	#define iwl3945_write32(priv, ofs, val) \
5c1b0958 TW	71	__iwl3945_write32(__FILE__, __LINE__, priv, ofs, val)
b481de9c	72	#else
5c1b0958	73	#define iwl3945_write32(priv, ofs, val) _iwl3945_write32(priv, ofs, val)
b481de9c ZY	74	#endif
b481de9c ZY	75
5c1b0958	76	#define _iwl3945_read32(priv, ofs) readl((priv)->hw_base + (ofs))
c8b0e6e1	77	#ifdef CONFIG_IWL3945_DEBUG
5c1b0958	78	static inline u32 __iwl3945_read32(char f, u32 l, struct iwl3945_priv priv, u32 ofs)
b481de9c ZY	79	{
b481de9c ZY	80	IWL_DEBUG_IO("read_direct32(0x%08X) - %s %d\n", ofs, f, l);
5c1b0958	81	return _iwl3945_read32(priv, ofs);
b481de9c	82	}
5c1b0958	83	#define iwl3945_read32(priv, ofs) __iwl3945_read32(__FILE__, __LINE__, priv, ofs)
b481de9c	84	#else
bb8c093b	85	#define iwl3945_read32(p, o) _iwl3945_read32(p, o)
b481de9c ZY	86	#endif
b481de9c ZY	87
bb8c093b	88	static inline int _iwl3945_poll_bit(struct iwl3945_priv *priv, u32 addr,
b481de9c ZY	89	u32 bits, u32 mask, int timeout)
	90	{
	91	int i = 0;
	92
	93	do {
bb8c093b	94	if ((_iwl3945_read32(priv, addr) & mask) == (bits & mask))
b481de9c ZY	95	return i;
	96	mdelay(10);
	97	i += 10;
	98	} while (i < timeout);
	99
	100	return -ETIMEDOUT;
	101	}
c8b0e6e1	102	#ifdef CONFIG_IWL3945_DEBUG
bb8c093b CH	103	static inline int __iwl3945_poll_bit(const char *f, u32 l,
bb8c093b CH	104	struct iwl3945_priv *priv, u32 addr,
b481de9c ZY	105	u32 bits, u32 mask, int timeout)
b481de9c ZY	106	{
bb8c093b	107	int ret = _iwl3945_poll_bit(priv, addr, bits, mask, timeout);
5c1b0958 TW	108	IWL_DEBUG_IO("poll_bit(0x%08X, 0x%08X, 0x%08X) - %s- %s %d\n",
	109	addr, bits, mask,
	110	unlikely(ret == -ETIMEDOUT)?"timeout":"", f, l);
ac17a947	111	return ret;
b481de9c	112	}
5c1b0958 TW	113	#define iwl3945_poll_bit(priv, addr, bits, mask, timeout) \
5c1b0958 TW	114	__iwl3945_poll_bit(__FILE__, __LINE__, priv, addr, bits, mask, timeout)
b481de9c	115	#else
bb8c093b	116	#define iwl3945_poll_bit(p, a, b, m, t) _iwl3945_poll_bit(p, a, b, m, t)
b481de9c ZY	117	#endif
b481de9c ZY	118
bb8c093b	119	static inline void _iwl3945_set_bit(struct iwl3945_priv *priv, u32 reg, u32 mask)
b481de9c	120	{
bb8c093b	121	_iwl3945_write32(priv, reg, _iwl3945_read32(priv, reg) \| mask);
b481de9c	122	}
c8b0e6e1	123	#ifdef CONFIG_IWL3945_DEBUG
bb8c093b CH	124	static inline void __iwl3945_set_bit(const char *f, u32 l,
bb8c093b CH	125	struct iwl3945_priv *priv, u32 reg, u32 mask)
b481de9c	126	{
bb8c093b	127	u32 val = _iwl3945_read32(priv, reg) \| mask;
b481de9c	128	IWL_DEBUG_IO("set_bit(0x%08X, 0x%08X) = 0x%08X\n", reg, mask, val);
bb8c093b	129	_iwl3945_write32(priv, reg, val);
b481de9c	130	}
bb8c093b	131	#define iwl3945_set_bit(p, r, m) __iwl3945_set_bit(__FILE__, __LINE__, p, r, m)
b481de9c	132	#else
bb8c093b	133	#define iwl3945_set_bit(p, r, m) _iwl3945_set_bit(p, r, m)
b481de9c ZY	134	#endif
b481de9c ZY	135
bb8c093b	136	static inline void _iwl3945_clear_bit(struct iwl3945_priv *priv, u32 reg, u32 mask)
b481de9c	137	{
bb8c093b	138	_iwl3945_write32(priv, reg, _iwl3945_read32(priv, reg) & ~mask);
b481de9c	139	}
c8b0e6e1	140	#ifdef CONFIG_IWL3945_DEBUG
bb8c093b CH	141	static inline void __iwl3945_clear_bit(const char *f, u32 l,
bb8c093b CH	142	struct iwl3945_priv *priv, u32 reg, u32 mask)
b481de9c	143	{
bb8c093b	144	u32 val = _iwl3945_read32(priv, reg) & ~mask;
b481de9c	145	IWL_DEBUG_IO("clear_bit(0x%08X, 0x%08X) = 0x%08X\n", reg, mask, val);
bb8c093b	146	_iwl3945_write32(priv, reg, val);
b481de9c	147	}
bb8c093b	148	#define iwl3945_clear_bit(p, r, m) __iwl3945_clear_bit(__FILE__, __LINE__, p, r, m)
b481de9c	149	#else
bb8c093b	150	#define iwl3945_clear_bit(p, r, m) _iwl3945_clear_bit(p, r, m)
b481de9c ZY	151	#endif
b481de9c ZY	152
bb8c093b	153	static inline int _iwl3945_grab_nic_access(struct iwl3945_priv *priv)
b481de9c	154	{
ac17a947	155	int ret;
b481de9c ZY	156	u32 gp_ctl;
b481de9c ZY	157
c8b0e6e1	158	#ifdef CONFIG_IWL3945_DEBUG
b481de9c ZY	159	if (atomic_read(&priv->restrict_refcnt))
	160	return 0;
	161	#endif
	162	if (test_bit(STATUS_RF_KILL_HW, &priv->status) \|\|
	163	test_bit(STATUS_RF_KILL_SW, &priv->status)) {
	164	IWL_WARNING("WARNING: Requesting MAC access during RFKILL "
	165	"wakes up NIC\n");
	166
	167	/* 10 msec allows time for NIC to complete its data save */
bb8c093b	168	gp_ctl = _iwl3945_read32(priv, CSR_GP_CNTRL);
b481de9c ZY	169	if (gp_ctl & CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY) {
	170	IWL_DEBUG_RF_KILL("Wait for complete power-down, "
	171	"gpctl = 0x%08x\n", gp_ctl);
	172	mdelay(10);
	173	} else
	174	IWL_DEBUG_RF_KILL("power-down complete, "
	175	"gpctl = 0x%08x\n", gp_ctl);
	176	}
	177
	178	/* this bit wakes up the NIC */
bb8c093b CH	179	_iwl3945_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
bb8c093b CH	180	ret = _iwl3945_poll_bit(priv, CSR_GP_CNTRL,
b481de9c ZY	181	CSR_GP_CNTRL_REG_VAL_MAC_ACCESS_EN,
	182	(CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY \|
	183	CSR_GP_CNTRL_REG_FLAG_GOING_TO_SLEEP), 50);
ac17a947	184	if (ret < 0) {
b481de9c ZY	185	IWL_ERROR("MAC is in deep sleep!\n");
	186	return -EIO;
	187	}
	188
c8b0e6e1	189	#ifdef CONFIG_IWL3945_DEBUG
b481de9c ZY	190	atomic_inc(&priv->restrict_refcnt);
	191	#endif
	192	return 0;
	193	}
	194
c8b0e6e1	195	#ifdef CONFIG_IWL3945_DEBUG
bb8c093b CH	196	static inline int __iwl3945_grab_nic_access(const char *f, u32 l,
bb8c093b CH	197	struct iwl3945_priv *priv)
b481de9c ZY	198	{
	199	if (atomic_read(&priv->restrict_refcnt))
	200	IWL_DEBUG_INFO("Grabbing access while already held at "
	201	"line %d.\n", l);
	202
ac17a947	203	IWL_DEBUG_IO("grabbing nic access - %s %d\n", f, l);
bb8c093b	204	return _iwl3945_grab_nic_access(priv);
b481de9c	205	}
bb8c093b CH	206	#define iwl3945_grab_nic_access(priv) \
bb8c093b CH	207	__iwl3945_grab_nic_access(__FILE__, __LINE__, priv)
b481de9c	208	#else
bb8c093b CH	209	#define iwl3945_grab_nic_access(priv) \
bb8c093b CH	210	_iwl3945_grab_nic_access(priv)
b481de9c ZY	211	#endif
b481de9c ZY	212
bb8c093b	213	static inline void _iwl3945_release_nic_access(struct iwl3945_priv *priv)
b481de9c	214	{
c8b0e6e1	215	#ifdef CONFIG_IWL3945_DEBUG
b481de9c ZY	216	if (atomic_dec_and_test(&priv->restrict_refcnt))
b481de9c ZY	217	#endif
bb8c093b	218	_iwl3945_clear_bit(priv, CSR_GP_CNTRL,
b481de9c ZY	219	CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
b481de9c ZY	220	}
c8b0e6e1	221	#ifdef CONFIG_IWL3945_DEBUG
bb8c093b CH	222	static inline void __iwl3945_release_nic_access(const char *f, u32 l,
bb8c093b CH	223	struct iwl3945_priv *priv)
b481de9c ZY	224	{
b481de9c ZY	225	if (atomic_read(&priv->restrict_refcnt) <= 0)
ac17a947	226	IWL_ERROR("Release unheld nic access at line %d.\n", l);
b481de9c	227
ac17a947	228	IWL_DEBUG_IO("releasing nic access - %s %d\n", f, l);
bb8c093b	229	_iwl3945_release_nic_access(priv);
b481de9c	230	}
bb8c093b CH	231	#define iwl3945_release_nic_access(priv) \
bb8c093b CH	232	__iwl3945_release_nic_access(__FILE__, __LINE__, priv)
b481de9c	233	#else
bb8c093b CH	234	#define iwl3945_release_nic_access(priv) \
bb8c093b CH	235	_iwl3945_release_nic_access(priv)
b481de9c ZY	236	#endif
b481de9c ZY	237
bb8c093b	238	static inline u32 _iwl3945_read_direct32(struct iwl3945_priv *priv, u32 reg)
b481de9c	239	{
bb8c093b	240	return _iwl3945_read32(priv, reg);
b481de9c	241	}
c8b0e6e1	242	#ifdef CONFIG_IWL3945_DEBUG
bb8c093b CH	243	static inline u32 __iwl3945_read_direct32(const char *f, u32 l,
bb8c093b CH	244	struct iwl3945_priv *priv, u32 reg)
b481de9c	245	{
bb8c093b	246	u32 value = _iwl3945_read_direct32(priv, reg);
b481de9c	247	if (!atomic_read(&priv->restrict_refcnt))
ac17a947 TW	248	IWL_ERROR("Nic access not held from %s %d\n", f, l);
ac17a947 TW	249	IWL_DEBUG_IO("read_direct32(0x%4X) = 0x%08x - %s %d \n", reg, value,
b481de9c ZY	250	f, l);
	251	return value;
	252	}
bb8c093b CH	253	#define iwl3945_read_direct32(priv, reg) \
bb8c093b CH	254	__iwl3945_read_direct32(__FILE__, __LINE__, priv, reg)
b481de9c	255	#else
bb8c093b	256	#define iwl3945_read_direct32 _iwl3945_read_direct32
b481de9c ZY	257	#endif
b481de9c ZY	258
bb8c093b	259	static inline void _iwl3945_write_direct32(struct iwl3945_priv *priv,
b481de9c ZY	260	u32 reg, u32 value)
b481de9c ZY	261	{
bb8c093b	262	_iwl3945_write32(priv, reg, value);
b481de9c	263	}
c8b0e6e1	264	#ifdef CONFIG_IWL3945_DEBUG
bb8c093b CH	265	static void __iwl3945_write_direct32(u32 line,
bb8c093b CH	266	struct iwl3945_priv *priv, u32 reg, u32 value)
b481de9c ZY	267	{
b481de9c ZY	268	if (!atomic_read(&priv->restrict_refcnt))
ac17a947	269	IWL_ERROR("Nic access not held from line %d\n", line);
bb8c093b	270	_iwl3945_write_direct32(priv, reg, value);
b481de9c	271	}
bb8c093b CH	272	#define iwl3945_write_direct32(priv, reg, value) \
bb8c093b CH	273	__iwl3945_write_direct32(__LINE__, priv, reg, value)
b481de9c	274	#else
bb8c093b	275	#define iwl3945_write_direct32 _iwl3945_write_direct32
b481de9c ZY	276	#endif
b481de9c ZY	277
bb8c093b	278	static inline void iwl3945_write_reg_buf(struct iwl3945_priv *priv,
b481de9c ZY	279	u32 reg, u32 len, u32 *values)
	280	{
	281	u32 count = sizeof(u32);
	282
	283	if ((priv != NULL) && (values != NULL)) {
	284	for (; 0 < len; len -= count, reg += count, values++)
bb8c093b	285	_iwl3945_write_direct32(priv, reg, *values);
b481de9c ZY	286	}
	287	}
	288
bb8c093b	289	static inline int _iwl3945_poll_direct_bit(struct iwl3945_priv *priv,
b481de9c ZY	290	u32 addr, u32 mask, int timeout)
	291	{
	292	int i = 0;
	293
	294	do {
bb8c093b	295	if ((_iwl3945_read_direct32(priv, addr) & mask) == mask)
b481de9c ZY	296	return i;
	297	mdelay(10);
	298	i += 10;
	299	} while (i < timeout);
	300
	301	return -ETIMEDOUT;
	302	}
	303
c8b0e6e1	304	#ifdef CONFIG_IWL3945_DEBUG
bb8c093b CH	305	static inline int __iwl3945_poll_direct_bit(const char *f, u32 l,
bb8c093b CH	306	struct iwl3945_priv *priv,
b481de9c ZY	307	u32 addr, u32 mask, int timeout)
b481de9c ZY	308	{
bb8c093b	309	int ret = _iwl3945_poll_direct_bit(priv, addr, mask, timeout);
b481de9c	310
ac17a947 TW	311	if (unlikely(ret == -ETIMEDOUT))
ac17a947 TW	312	IWL_DEBUG_IO("poll_direct_bit(0x%08X, 0x%08X) - "
b481de9c ZY	313	"timedout - %s %d\n", addr, mask, f, l);
b481de9c ZY	314	else
ac17a947 TW	315	IWL_DEBUG_IO("poll_direct_bit(0x%08X, 0x%08X) = 0x%08X "
	316	"- %s %d\n", addr, mask, ret, f, l);
	317	return ret;
b481de9c	318	}
5c1b0958 TW	319	#define iwl3945_poll_direct_bit(priv, addr, mask, timeout) \
5c1b0958 TW	320	__iwl3945_poll_direct_bit(__FILE__, __LINE__, priv, addr, mask, timeout)
b481de9c	321	#else
bb8c093b	322	#define iwl3945_poll_direct_bit _iwl3945_poll_direct_bit
b481de9c ZY	323	#endif
b481de9c ZY	324
bb8c093b	325	static inline u32 _iwl3945_read_prph(struct iwl3945_priv *priv, u32 reg)
b481de9c	326	{
bb8c093b CH	327	_iwl3945_write_direct32(priv, HBUS_TARG_PRPH_RADDR, reg \| (3 << 24));
bb8c093b CH	328	return _iwl3945_read_direct32(priv, HBUS_TARG_PRPH_RDAT);
b481de9c	329	}
c8b0e6e1	330	#ifdef CONFIG_IWL3945_DEBUG
bb8c093b	331	static inline u32 __iwl3945_read_prph(u32 line, struct iwl3945_priv *priv, u32 reg)
b481de9c ZY	332	{
b481de9c ZY	333	if (!atomic_read(&priv->restrict_refcnt))
ac17a947	334	IWL_ERROR("Nic access not held from line %d\n", line);
bb8c093b	335	return _iwl3945_read_prph(priv, reg);
b481de9c ZY	336	}
b481de9c ZY	337
bb8c093b CH	338	#define iwl3945_read_prph(priv, reg) \
bb8c093b CH	339	__iwl3945_read_prph(__LINE__, priv, reg)
b481de9c	340	#else
bb8c093b	341	#define iwl3945_read_prph _iwl3945_read_prph
b481de9c ZY	342	#endif
b481de9c ZY	343
bb8c093b	344	static inline void _iwl3945_write_prph(struct iwl3945_priv *priv,
b481de9c ZY	345	u32 addr, u32 val)
b481de9c ZY	346	{
bb8c093b	347	_iwl3945_write_direct32(priv, HBUS_TARG_PRPH_WADDR,
b481de9c	348	((addr & 0x0000FFFF) \| (3 << 24)));
bb8c093b	349	_iwl3945_write_direct32(priv, HBUS_TARG_PRPH_WDAT, val);
b481de9c	350	}
c8b0e6e1	351	#ifdef CONFIG_IWL3945_DEBUG
bb8c093b	352	static inline void __iwl3945_write_prph(u32 line, struct iwl3945_priv *priv,
b481de9c ZY	353	u32 addr, u32 val)
	354	{
	355	if (!atomic_read(&priv->restrict_refcnt))
ac17a947	356	IWL_ERROR("Nic access from line %d\n", line);
bb8c093b	357	_iwl3945_write_prph(priv, addr, val);
b481de9c ZY	358	}
b481de9c ZY	359
bb8c093b CH	360	#define iwl3945_write_prph(priv, addr, val) \
bb8c093b CH	361	__iwl3945_write_prph(__LINE__, priv, addr, val);
b481de9c	362	#else
bb8c093b	363	#define iwl3945_write_prph _iwl3945_write_prph
b481de9c ZY	364	#endif
b481de9c ZY	365
bb8c093b CH	366	#define _iwl3945_set_bits_prph(priv, reg, mask) \
bb8c093b CH	367	_iwl3945_write_prph(priv, reg, (_iwl3945_read_prph(priv, reg) \| mask))
c8b0e6e1	368	#ifdef CONFIG_IWL3945_DEBUG
bb8c093b	369	static inline void __iwl3945_set_bits_prph(u32 line, struct iwl3945_priv *priv,
d8609652	370	u32 reg, u32 mask)
b481de9c ZY	371	{
b481de9c ZY	372	if (!atomic_read(&priv->restrict_refcnt))
ac17a947 TW	373	IWL_ERROR("Nic access not held from line %d\n", line);
ac17a947 TW	374
bb8c093b	375	_iwl3945_set_bits_prph(priv, reg, mask);
b481de9c	376	}
bb8c093b CH	377	#define iwl3945_set_bits_prph(priv, reg, mask) \
bb8c093b CH	378	__iwl3945_set_bits_prph(__LINE__, priv, reg, mask)
b481de9c	379	#else
bb8c093b	380	#define iwl3945_set_bits_prph _iwl3945_set_bits_prph
b481de9c ZY	381	#endif
b481de9c ZY	382
bb8c093b CH	383	#define _iwl3945_set_bits_mask_prph(priv, reg, bits, mask) \
bb8c093b CH	384	_iwl3945_write_prph(priv, reg, ((_iwl3945_read_prph(priv, reg) & mask) \| bits))
d8609652	385
c8b0e6e1	386	#ifdef CONFIG_IWL3945_DEBUG
bb8c093b CH	387	static inline void __iwl3945_set_bits_mask_prph(u32 line,
bb8c093b CH	388	struct iwl3945_priv *priv, u32 reg, u32 bits, u32 mask)
b481de9c ZY	389	{
b481de9c ZY	390	if (!atomic_read(&priv->restrict_refcnt))
ac17a947	391	IWL_ERROR("Nic access not held from line %d\n", line);
bb8c093b	392	_iwl3945_set_bits_mask_prph(priv, reg, bits, mask);
b481de9c	393	}
bb8c093b CH	394	#define iwl3945_set_bits_mask_prph(priv, reg, bits, mask) \
bb8c093b CH	395	__iwl3945_set_bits_mask_prph(__LINE__, priv, reg, bits, mask)
b481de9c	396	#else
bb8c093b	397	#define iwl3945_set_bits_mask_prph _iwl3945_set_bits_mask_prph
b481de9c ZY	398	#endif
b481de9c ZY	399
bb8c093b	400	static inline void iwl3945_clear_bits_prph(struct iwl3945_priv
b481de9c ZY	401	*priv, u32 reg, u32 mask)
b481de9c ZY	402	{
bb8c093b CH	403	u32 val = _iwl3945_read_prph(priv, reg);
bb8c093b CH	404	_iwl3945_write_prph(priv, reg, (val & ~mask));
b481de9c ZY	405	}
b481de9c ZY	406
bb8c093b	407	static inline u32 iwl3945_read_targ_mem(struct iwl3945_priv *priv, u32 addr)
b481de9c	408	{
bb8c093b CH	409	iwl3945_write_direct32(priv, HBUS_TARG_MEM_RADDR, addr);
bb8c093b CH	410	return iwl3945_read_direct32(priv, HBUS_TARG_MEM_RDAT);
b481de9c ZY	411	}
b481de9c ZY	412
bb8c093b	413	static inline void iwl3945_write_targ_mem(struct iwl3945_priv *priv, u32 addr, u32 val)
b481de9c	414	{
bb8c093b CH	415	iwl3945_write_direct32(priv, HBUS_TARG_MEM_WADDR, addr);
bb8c093b CH	416	iwl3945_write_direct32(priv, HBUS_TARG_MEM_WDAT, val);
b481de9c ZY	417	}
b481de9c ZY	418
bb8c093b	419	static inline void iwl3945_write_targ_mem_buf(struct iwl3945_priv *priv, u32 addr,
af7cca2a	420	u32 len, u32 *values)
b481de9c	421	{
bb8c093b	422	iwl3945_write_direct32(priv, HBUS_TARG_MEM_WADDR, addr);
b481de9c	423	for (; 0 < len; len -= sizeof(u32), values++)
bb8c093b	424	iwl3945_write_direct32(priv, HBUS_TARG_MEM_WDAT, *values);
b481de9c	425	}
b481de9c	426	#endif