[IWLWIFI]: add iwlwifi wireless drivers
This patch adds the mac80211 based wireless drivers for the Intel PRO/Wireless 3945ABG/BG Network Connection and Intel Wireless WiFi Link AGN (4965) adapters. [ Move driver into it's own directory -DaveM ] Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Zhu Yi
David S. Miller
470
drivers/net/wireless/iwlwifi/iwl-io.h
Normal file
470
drivers/net/wireless/iwlwifi/iwl-io.h
Normal file
@@ -0,0 +1,470 @@
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/******************************************************************************
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*
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* Copyright(c) 2003 - 2007 Intel Corporation. All rights reserved.
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*
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* Portions of this file are derived from the ipw3945 project.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
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*
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* The full GNU General Public License is included in this distribution in the
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* file called LICENSE.
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*
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* Contact Information:
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* James P. Ketrenos <ipw2100-admin@linux.intel.com>
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* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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*
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*****************************************************************************/
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#ifndef __iwl_io_h__
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#define __iwl_io_h__
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#include <linux/io.h>
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#include "iwl-debug.h"
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/*
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* IO, register, and NIC memory access functions
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*
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* NOTE on naming convention and macro usage for these
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*
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* A single _ prefix before a an access function means that no state
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* check or debug information is printed when that function is called.
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*
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* A double __ prefix before an access function means that state is checked
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* (in the case of *restricted calls) and the current line number is printed
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* in addition to any other debug output.
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*
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* The non-prefixed name is the #define that maps the caller into a
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* #define that provides the caller's __LINE__ to the double prefix version.
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*
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* If you wish to call the function without any debug or state checking,
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* you should use the single _ prefix version (as is used by dependent IO
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* routines, for example _iwl_read_restricted calls the non-check version of
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* _iwl_read32.)
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*
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* These declarations are *extremely* useful in quickly isolating code deltas
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* which result in misconfiguring of the hardware I/O. In combination with
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* git-bisect and the IO debug level you can quickly determine the specific
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* commit which breaks the IO sequence to the hardware.
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*
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*/
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#define _iwl_write32(iwl, ofs, val) writel((val), (iwl)->hw_base + (ofs))
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#ifdef CONFIG_IWLWIFI_DEBUG
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static inline void __iwl_write32(const char *f, u32 l, struct iwl_priv *iwl,
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u32 ofs, u32 val)
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{
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IWL_DEBUG_IO("write_direct32(0x%08X, 0x%08X) - %s %d\n",
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(u32) (ofs), (u32) (val), f, l);
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_iwl_write32(iwl, ofs, val);
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}
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#define iwl_write32(iwl, ofs, val) \
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__iwl_write32(__FILE__, __LINE__, iwl, ofs, val)
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#else
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#define iwl_write32(iwl, ofs, val) _iwl_write32(iwl, ofs, val)
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#endif
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#define _iwl_read32(iwl, ofs) readl((iwl)->hw_base + (ofs))
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#ifdef CONFIG_IWLWIFI_DEBUG
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static inline u32 __iwl_read32(char *f, u32 l, struct iwl_priv *iwl, u32 ofs)
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{
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IWL_DEBUG_IO("read_direct32(0x%08X) - %s %d\n", ofs, f, l);
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return _iwl_read32(iwl, ofs);
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}
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#define iwl_read32(iwl, ofs) __iwl_read32(__FILE__, __LINE__, iwl, ofs)
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#else
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#define iwl_read32(p, o) _iwl_read32(p, o)
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#endif
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static inline int _iwl_poll_bit(struct iwl_priv *priv, u32 addr,
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u32 bits, u32 mask, int timeout)
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{
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int i = 0;
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do {
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if ((_iwl_read32(priv, addr) & mask) == (bits & mask))
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return i;
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mdelay(10);
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i += 10;
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} while (i < timeout);
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return -ETIMEDOUT;
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}
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#ifdef CONFIG_IWLWIFI_DEBUG
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static inline int __iwl_poll_bit(const char *f, u32 l,
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struct iwl_priv *priv, u32 addr,
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u32 bits, u32 mask, int timeout)
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{
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int rc = _iwl_poll_bit(priv, addr, bits, mask, timeout);
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if (unlikely(rc == -ETIMEDOUT))
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IWL_DEBUG_IO
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("poll_bit(0x%08X, 0x%08X, 0x%08X) - timedout - %s %d\n",
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addr, bits, mask, f, l);
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else
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IWL_DEBUG_IO
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("poll_bit(0x%08X, 0x%08X, 0x%08X) = 0x%08X - %s %d\n",
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addr, bits, mask, rc, f, l);
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return rc;
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}
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#define iwl_poll_bit(iwl, addr, bits, mask, timeout) \
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__iwl_poll_bit(__FILE__, __LINE__, iwl, addr, bits, mask, timeout)
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#else
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#define iwl_poll_bit(p, a, b, m, t) _iwl_poll_bit(p, a, b, m, t)
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#endif
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static inline void _iwl_set_bit(struct iwl_priv *priv, u32 reg, u32 mask)
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{
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_iwl_write32(priv, reg, _iwl_read32(priv, reg) | mask);
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}
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#ifdef CONFIG_IWLWIFI_DEBUG
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static inline void __iwl_set_bit(const char *f, u32 l,
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struct iwl_priv *priv, u32 reg, u32 mask)
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{
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u32 val = _iwl_read32(priv, reg) | mask;
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IWL_DEBUG_IO("set_bit(0x%08X, 0x%08X) = 0x%08X\n", reg, mask, val);
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_iwl_write32(priv, reg, val);
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}
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#define iwl_set_bit(p, r, m) __iwl_set_bit(__FILE__, __LINE__, p, r, m)
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#else
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#define iwl_set_bit(p, r, m) _iwl_set_bit(p, r, m)
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#endif
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static inline void _iwl_clear_bit(struct iwl_priv *priv, u32 reg, u32 mask)
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{
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_iwl_write32(priv, reg, _iwl_read32(priv, reg) & ~mask);
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}
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#ifdef CONFIG_IWLWIFI_DEBUG
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static inline void __iwl_clear_bit(const char *f, u32 l,
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struct iwl_priv *priv, u32 reg, u32 mask)
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{
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u32 val = _iwl_read32(priv, reg) & ~mask;
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IWL_DEBUG_IO("clear_bit(0x%08X, 0x%08X) = 0x%08X\n", reg, mask, val);
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_iwl_write32(priv, reg, val);
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}
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#define iwl_clear_bit(p, r, m) __iwl_clear_bit(__FILE__, __LINE__, p, r, m)
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#else
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#define iwl_clear_bit(p, r, m) _iwl_clear_bit(p, r, m)
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#endif
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static inline int _iwl_grab_restricted_access(struct iwl_priv *priv)
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{
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int rc;
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u32 gp_ctl;
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#ifdef CONFIG_IWLWIFI_DEBUG
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if (atomic_read(&priv->restrict_refcnt))
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return 0;
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#endif
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if (test_bit(STATUS_RF_KILL_HW, &priv->status) ||
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test_bit(STATUS_RF_KILL_SW, &priv->status)) {
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IWL_WARNING("WARNING: Requesting MAC access during RFKILL "
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"wakes up NIC\n");
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/* 10 msec allows time for NIC to complete its data save */
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gp_ctl = _iwl_read32(priv, CSR_GP_CNTRL);
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if (gp_ctl & CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY) {
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IWL_DEBUG_RF_KILL("Wait for complete power-down, "
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"gpctl = 0x%08x\n", gp_ctl);
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mdelay(10);
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} else
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IWL_DEBUG_RF_KILL("power-down complete, "
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"gpctl = 0x%08x\n", gp_ctl);
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}
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/* this bit wakes up the NIC */
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_iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
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rc = _iwl_poll_bit(priv, CSR_GP_CNTRL,
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CSR_GP_CNTRL_REG_VAL_MAC_ACCESS_EN,
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(CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY |
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CSR_GP_CNTRL_REG_FLAG_GOING_TO_SLEEP), 50);
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if (rc < 0) {
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IWL_ERROR("MAC is in deep sleep!\n");
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return -EIO;
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}
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#ifdef CONFIG_IWLWIFI_DEBUG
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atomic_inc(&priv->restrict_refcnt);
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#endif
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return 0;
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}
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#ifdef CONFIG_IWLWIFI_DEBUG
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static inline int __iwl_grab_restricted_access(const char *f, u32 l,
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struct iwl_priv *priv)
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{
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if (atomic_read(&priv->restrict_refcnt))
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IWL_DEBUG_INFO("Grabbing access while already held at "
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"line %d.\n", l);
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IWL_DEBUG_IO("grabbing restricted access - %s %d\n", f, l);
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return _iwl_grab_restricted_access(priv);
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}
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#define iwl_grab_restricted_access(priv) \
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__iwl_grab_restricted_access(__FILE__, __LINE__, priv)
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#else
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#define iwl_grab_restricted_access(priv) \
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_iwl_grab_restricted_access(priv)
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#endif
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static inline void _iwl_release_restricted_access(struct iwl_priv *priv)
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{
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#ifdef CONFIG_IWLWIFI_DEBUG
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if (atomic_dec_and_test(&priv->restrict_refcnt))
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#endif
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_iwl_clear_bit(priv, CSR_GP_CNTRL,
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CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
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}
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#ifdef CONFIG_IWLWIFI_DEBUG
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static inline void __iwl_release_restricted_access(const char *f, u32 l,
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struct iwl_priv *priv)
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{
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if (atomic_read(&priv->restrict_refcnt) <= 0)
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IWL_ERROR("Release unheld restricted access at line %d.\n", l);
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IWL_DEBUG_IO("releasing restricted access - %s %d\n", f, l);
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_iwl_release_restricted_access(priv);
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}
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#define iwl_release_restricted_access(priv) \
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__iwl_release_restricted_access(__FILE__, __LINE__, priv)
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#else
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#define iwl_release_restricted_access(priv) \
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_iwl_release_restricted_access(priv)
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#endif
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static inline u32 _iwl_read_restricted(struct iwl_priv *priv, u32 reg)
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{
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return _iwl_read32(priv, reg);
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}
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#ifdef CONFIG_IWLWIFI_DEBUG
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static inline u32 __iwl_read_restricted(const char *f, u32 l,
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struct iwl_priv *priv, u32 reg)
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{
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u32 value = _iwl_read_restricted(priv, reg);
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if (!atomic_read(&priv->restrict_refcnt))
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IWL_ERROR("Unrestricted access from %s %d\n", f, l);
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IWL_DEBUG_IO("read_restricted(0x%4X) = 0x%08x - %s %d \n", reg, value,
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f, l);
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return value;
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}
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#define iwl_read_restricted(priv, reg) \
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__iwl_read_restricted(__FILE__, __LINE__, priv, reg)
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#else
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#define iwl_read_restricted _iwl_read_restricted
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#endif
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static inline void _iwl_write_restricted(struct iwl_priv *priv,
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u32 reg, u32 value)
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{
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_iwl_write32(priv, reg, value);
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}
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#ifdef CONFIG_IWLWIFI_DEBUG
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static void __iwl_write_restricted(u32 line,
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struct iwl_priv *priv, u32 reg, u32 value)
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{
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if (!atomic_read(&priv->restrict_refcnt))
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IWL_ERROR("Unrestricted access from line %d\n", line);
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_iwl_write_restricted(priv, reg, value);
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}
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#define iwl_write_restricted(priv, reg, value) \
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__iwl_write_restricted(__LINE__, priv, reg, value)
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#else
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#define iwl_write_restricted _iwl_write_restricted
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#endif
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static inline void iwl_write_buffer_restricted(struct iwl_priv *priv,
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u32 reg, u32 len, u32 *values)
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{
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u32 count = sizeof(u32);
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if ((priv != NULL) && (values != NULL)) {
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for (; 0 < len; len -= count, reg += count, values++)
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_iwl_write_restricted(priv, reg, *values);
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}
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}
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static inline int _iwl_poll_restricted_bit(struct iwl_priv *priv,
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u32 addr, u32 mask, int timeout)
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{
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int i = 0;
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do {
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if ((_iwl_read_restricted(priv, addr) & mask) == mask)
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return i;
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mdelay(10);
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i += 10;
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} while (i < timeout);
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return -ETIMEDOUT;
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}
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#ifdef CONFIG_IWLWIFI_DEBUG
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static inline int __iwl_poll_restricted_bit(const char *f, u32 l,
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struct iwl_priv *priv,
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u32 addr, u32 mask, int timeout)
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{
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int rc = _iwl_poll_restricted_bit(priv, addr, mask, timeout);
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if (unlikely(rc == -ETIMEDOUT))
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IWL_DEBUG_IO("poll_restricted_bit(0x%08X, 0x%08X) - "
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"timedout - %s %d\n", addr, mask, f, l);
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else
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IWL_DEBUG_IO("poll_restricted_bit(0x%08X, 0x%08X) = 0x%08X "
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"- %s %d\n", addr, mask, rc, f, l);
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return rc;
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}
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#define iwl_poll_restricted_bit(iwl, addr, mask, timeout) \
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__iwl_poll_restricted_bit(__FILE__, __LINE__, iwl, addr, mask, timeout)
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#else
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#define iwl_poll_restricted_bit _iwl_poll_restricted_bit
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#endif
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static inline u32 _iwl_read_restricted_reg(struct iwl_priv *priv, u32 reg)
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{
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_iwl_write_restricted(priv, HBUS_TARG_PRPH_RADDR, reg | (3 << 24));
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return _iwl_read_restricted(priv, HBUS_TARG_PRPH_RDAT);
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}
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#ifdef CONFIG_IWLWIFI_DEBUG
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static inline u32 __iwl_read_restricted_reg(u32 line,
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struct iwl_priv *priv, u32 reg)
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{
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if (!atomic_read(&priv->restrict_refcnt))
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IWL_ERROR("Unrestricted access from line %d\n", line);
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return _iwl_read_restricted_reg(priv, reg);
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}
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#define iwl_read_restricted_reg(priv, reg) \
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__iwl_read_restricted_reg(__LINE__, priv, reg)
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#else
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#define iwl_read_restricted_reg _iwl_read_restricted_reg
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#endif
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static inline void _iwl_write_restricted_reg(struct iwl_priv *priv,
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u32 addr, u32 val)
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{
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_iwl_write_restricted(priv, HBUS_TARG_PRPH_WADDR,
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((addr & 0x0000FFFF) | (3 << 24)));
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_iwl_write_restricted(priv, HBUS_TARG_PRPH_WDAT, val);
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}
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#ifdef CONFIG_IWLWIFI_DEBUG
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static inline void __iwl_write_restricted_reg(u32 line,
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struct iwl_priv *priv,
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u32 addr, u32 val)
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{
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if (!atomic_read(&priv->restrict_refcnt))
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IWL_ERROR("Unrestricted access from line %d\n", line);
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_iwl_write_restricted_reg(priv, addr, val);
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}
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||||
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#define iwl_write_restricted_reg(priv, addr, val) \
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__iwl_write_restricted_reg(__LINE__, priv, addr, val);
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#else
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#define iwl_write_restricted_reg _iwl_write_restricted_reg
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#endif
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#define _iwl_set_bits_restricted_reg(priv, reg, mask) \
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_iwl_write_restricted_reg(priv, reg, \
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(_iwl_read_restricted_reg(priv, reg) | mask))
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#ifdef CONFIG_IWLWIFI_DEBUG
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static inline void __iwl_set_bits_restricted_reg(u32 line, struct iwl_priv
|
||||
*priv, u32 reg, u32 mask)
|
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{
|
||||
if (!atomic_read(&priv->restrict_refcnt))
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||||
IWL_ERROR("Unrestricted access from line %d\n", line);
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||||
_iwl_set_bits_restricted_reg(priv, reg, mask);
|
||||
}
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||||
#define iwl_set_bits_restricted_reg(priv, reg, mask) \
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__iwl_set_bits_restricted_reg(__LINE__, priv, reg, mask)
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||||
#else
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#define iwl_set_bits_restricted_reg _iwl_set_bits_restricted_reg
|
||||
#endif
|
||||
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||||
#define _iwl_set_bits_mask_restricted_reg(priv, reg, bits, mask) \
|
||||
_iwl_write_restricted_reg( \
|
||||
priv, reg, ((_iwl_read_restricted_reg(priv, reg) & mask) | bits))
|
||||
#ifdef CONFIG_IWLWIFI_DEBUG
|
||||
static inline void __iwl_set_bits_mask_restricted_reg(u32 line,
|
||||
struct iwl_priv *priv, u32 reg, u32 bits, u32 mask)
|
||||
{
|
||||
if (!atomic_read(&priv->restrict_refcnt))
|
||||
IWL_ERROR("Unrestricted access from line %d\n", line);
|
||||
_iwl_set_bits_mask_restricted_reg(priv, reg, bits, mask);
|
||||
}
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||||
|
||||
#define iwl_set_bits_mask_restricted_reg(priv, reg, bits, mask) \
|
||||
__iwl_set_bits_mask_restricted_reg(__LINE__, priv, reg, bits, mask)
|
||||
#else
|
||||
#define iwl_set_bits_mask_restricted_reg _iwl_set_bits_mask_restricted_reg
|
||||
#endif
|
||||
|
||||
static inline void iwl_clear_bits_restricted_reg(struct iwl_priv
|
||||
*priv, u32 reg, u32 mask)
|
||||
{
|
||||
u32 val = _iwl_read_restricted_reg(priv, reg);
|
||||
_iwl_write_restricted_reg(priv, reg, (val & ~mask));
|
||||
}
|
||||
|
||||
static inline u32 iwl_read_restricted_mem(struct iwl_priv *priv, u32 addr)
|
||||
{
|
||||
iwl_write_restricted(priv, HBUS_TARG_MEM_RADDR, addr);
|
||||
return iwl_read_restricted(priv, HBUS_TARG_MEM_RDAT);
|
||||
}
|
||||
|
||||
static inline void iwl_write_restricted_mem(struct iwl_priv *priv, u32 addr,
|
||||
u32 val)
|
||||
{
|
||||
iwl_write_restricted(priv, HBUS_TARG_MEM_WADDR, addr);
|
||||
iwl_write_restricted(priv, HBUS_TARG_MEM_WDAT, val);
|
||||
}
|
||||
|
||||
static inline void iwl_write_restricted_mems(struct iwl_priv *priv, u32 addr,
|
||||
u32 len, u32 *values)
|
||||
{
|
||||
iwl_write_restricted(priv, HBUS_TARG_MEM_WADDR, addr);
|
||||
for (; 0 < len; len -= sizeof(u32), values++)
|
||||
iwl_write_restricted(priv, HBUS_TARG_MEM_WDAT, *values);
|
||||
}
|
||||
|
||||
static inline void iwl_write_restricted_regs(struct iwl_priv *priv, u32 reg,
|
||||
u32 len, u8 *values)
|
||||
{
|
||||
u32 reg_offset = reg;
|
||||
u32 aligment = reg & 0x3;
|
||||
|
||||
/* write any non-dword-aligned stuff at the beginning */
|
||||
if (len < sizeof(u32)) {
|
||||
if ((aligment + len) <= sizeof(u32)) {
|
||||
u8 size;
|
||||
u32 value = 0;
|
||||
size = len - 1;
|
||||
memcpy(&value, values, len);
|
||||
reg_offset = (reg_offset & 0x0000FFFF);
|
||||
|
||||
_iwl_write_restricted(priv,
|
||||
HBUS_TARG_PRPH_WADDR,
|
||||
(reg_offset | (size << 24)));
|
||||
_iwl_write_restricted(priv, HBUS_TARG_PRPH_WDAT,
|
||||
value);
|
||||
}
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
/* now write all the dword-aligned stuff */
|
||||
for (; reg_offset < (reg + len);
|
||||
reg_offset += sizeof(u32), values += sizeof(u32))
|
||||
_iwl_write_restricted_reg(priv, reg_offset, *((u32 *) values));
|
||||
}
|
||||
|
||||
#endif
|
||||
Reference in New Issue
Block a user