diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-io.h')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-io.h | 470 |
1 files changed, 0 insertions, 470 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-io.h b/drivers/net/wireless/iwlwifi/iwl-io.h deleted file mode 100644 index 8a8b96fcf48d..000000000000 --- a/drivers/net/wireless/iwlwifi/iwl-io.h +++ /dev/null @@ -1,470 +0,0 @@ -/****************************************************************************** - * - * Copyright(c) 2003 - 2007 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 __iwl_io_h__ -#define __iwl_io_h__ - -#include <linux/io.h> - -#include "iwl-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 - * (in the case of *restricted calls) 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 _iwl_read_restricted calls the non-check version of - * _iwl_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 _iwl_write32(iwl, ofs, val) writel((val), (iwl)->hw_base + (ofs)) -#ifdef CONFIG_IWLWIFI_DEBUG -static inline void __iwl_write32(const char *f, u32 l, struct iwl_priv *iwl, - u32 ofs, u32 val) -{ - IWL_DEBUG_IO("write_direct32(0x%08X, 0x%08X) - %s %d\n", - (u32) (ofs), (u32) (val), f, l); - _iwl_write32(iwl, ofs, val); -} -#define iwl_write32(iwl, ofs, val) \ - __iwl_write32(__FILE__, __LINE__, iwl, ofs, val) -#else -#define iwl_write32(iwl, ofs, val) _iwl_write32(iwl, ofs, val) -#endif - -#define _iwl_read32(iwl, ofs) readl((iwl)->hw_base + (ofs)) -#ifdef CONFIG_IWLWIFI_DEBUG -static inline u32 __iwl_read32(char *f, u32 l, struct iwl_priv *iwl, u32 ofs) -{ - IWL_DEBUG_IO("read_direct32(0x%08X) - %s %d\n", ofs, f, l); - return _iwl_read32(iwl, ofs); -} -#define iwl_read32(iwl, ofs) __iwl_read32(__FILE__, __LINE__, iwl, ofs) -#else -#define iwl_read32(p, o) _iwl_read32(p, o) -#endif - -static inline int _iwl_poll_bit(struct iwl_priv *priv, u32 addr, - u32 bits, u32 mask, int timeout) -{ - int i = 0; - - do { - if ((_iwl_read32(priv, addr) & mask) == (bits & mask)) - return i; - mdelay(10); - i += 10; - } while (i < timeout); - - return -ETIMEDOUT; -} -#ifdef CONFIG_IWLWIFI_DEBUG -static inline int __iwl_poll_bit(const char *f, u32 l, - struct iwl_priv *priv, u32 addr, - u32 bits, u32 mask, int timeout) -{ - int rc = _iwl_poll_bit(priv, addr, bits, mask, timeout); - if (unlikely(rc == -ETIMEDOUT)) - IWL_DEBUG_IO - ("poll_bit(0x%08X, 0x%08X, 0x%08X) - timedout - %s %d\n", - addr, bits, mask, f, l); - else - IWL_DEBUG_IO - ("poll_bit(0x%08X, 0x%08X, 0x%08X) = 0x%08X - %s %d\n", - addr, bits, mask, rc, f, l); - return rc; -} -#define iwl_poll_bit(iwl, addr, bits, mask, timeout) \ - __iwl_poll_bit(__FILE__, __LINE__, iwl, addr, bits, mask, timeout) -#else -#define iwl_poll_bit(p, a, b, m, t) _iwl_poll_bit(p, a, b, m, t) -#endif - -static inline void _iwl_set_bit(struct iwl_priv *priv, u32 reg, u32 mask) -{ - _iwl_write32(priv, reg, _iwl_read32(priv, reg) | mask); -} -#ifdef CONFIG_IWLWIFI_DEBUG -static inline void __iwl_set_bit(const char *f, u32 l, - struct iwl_priv *priv, u32 reg, u32 mask) -{ - u32 val = _iwl_read32(priv, reg) | mask; - IWL_DEBUG_IO("set_bit(0x%08X, 0x%08X) = 0x%08X\n", reg, mask, val); - _iwl_write32(priv, reg, val); -} -#define iwl_set_bit(p, r, m) __iwl_set_bit(__FILE__, __LINE__, p, r, m) -#else -#define iwl_set_bit(p, r, m) _iwl_set_bit(p, r, m) -#endif - -static inline void _iwl_clear_bit(struct iwl_priv *priv, u32 reg, u32 mask) -{ - _iwl_write32(priv, reg, _iwl_read32(priv, reg) & ~mask); -} -#ifdef CONFIG_IWLWIFI_DEBUG -static inline void __iwl_clear_bit(const char *f, u32 l, - struct iwl_priv *priv, u32 reg, u32 mask) -{ - u32 val = _iwl_read32(priv, reg) & ~mask; - IWL_DEBUG_IO("clear_bit(0x%08X, 0x%08X) = 0x%08X\n", reg, mask, val); - _iwl_write32(priv, reg, val); -} -#define iwl_clear_bit(p, r, m) __iwl_clear_bit(__FILE__, __LINE__, p, r, m) -#else -#define iwl_clear_bit(p, r, m) _iwl_clear_bit(p, r, m) -#endif - -static inline int _iwl_grab_restricted_access(struct iwl_priv *priv) -{ - int rc; - u32 gp_ctl; - -#ifdef CONFIG_IWLWIFI_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 = _iwl_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 */ - _iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); - rc = _iwl_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 (rc < 0) { - IWL_ERROR("MAC is in deep sleep!\n"); - return -EIO; - } - -#ifdef CONFIG_IWLWIFI_DEBUG - atomic_inc(&priv->restrict_refcnt); -#endif - return 0; -} - -#ifdef CONFIG_IWLWIFI_DEBUG -static inline int __iwl_grab_restricted_access(const char *f, u32 l, - struct iwl_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 restricted access - %s %d\n", f, l); - - return _iwl_grab_restricted_access(priv); -} -#define iwl_grab_restricted_access(priv) \ - __iwl_grab_restricted_access(__FILE__, __LINE__, priv) -#else -#define iwl_grab_restricted_access(priv) \ - _iwl_grab_restricted_access(priv) -#endif - -static inline void _iwl_release_restricted_access(struct iwl_priv *priv) -{ -#ifdef CONFIG_IWLWIFI_DEBUG - if (atomic_dec_and_test(&priv->restrict_refcnt)) -#endif - _iwl_clear_bit(priv, CSR_GP_CNTRL, - CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); -} -#ifdef CONFIG_IWLWIFI_DEBUG -static inline void __iwl_release_restricted_access(const char *f, u32 l, - struct iwl_priv *priv) -{ - if (atomic_read(&priv->restrict_refcnt) <= 0) - IWL_ERROR("Release unheld restricted access at line %d.\n", l); - - IWL_DEBUG_IO("releasing restricted access - %s %d\n", f, l); - _iwl_release_restricted_access(priv); -} -#define iwl_release_restricted_access(priv) \ - __iwl_release_restricted_access(__FILE__, __LINE__, priv) -#else -#define iwl_release_restricted_access(priv) \ - _iwl_release_restricted_access(priv) -#endif - -static inline u32 _iwl_read_restricted(struct iwl_priv *priv, u32 reg) -{ - return _iwl_read32(priv, reg); -} -#ifdef CONFIG_IWLWIFI_DEBUG -static inline u32 __iwl_read_restricted(const char *f, u32 l, - struct iwl_priv *priv, u32 reg) -{ - u32 value = _iwl_read_restricted(priv, reg); - if (!atomic_read(&priv->restrict_refcnt)) - IWL_ERROR("Unrestricted access from %s %d\n", f, l); - IWL_DEBUG_IO("read_restricted(0x%4X) = 0x%08x - %s %d \n", reg, value, - f, l); - return value; -} -#define iwl_read_restricted(priv, reg) \ - __iwl_read_restricted(__FILE__, __LINE__, priv, reg) -#else -#define iwl_read_restricted _iwl_read_restricted -#endif - -static inline void _iwl_write_restricted(struct iwl_priv *priv, - u32 reg, u32 value) -{ - _iwl_write32(priv, reg, value); -} -#ifdef CONFIG_IWLWIFI_DEBUG -static void __iwl_write_restricted(u32 line, - struct iwl_priv *priv, u32 reg, u32 value) -{ - if (!atomic_read(&priv->restrict_refcnt)) - IWL_ERROR("Unrestricted access from line %d\n", line); - _iwl_write_restricted(priv, reg, value); -} -#define iwl_write_restricted(priv, reg, value) \ - __iwl_write_restricted(__LINE__, priv, reg, value) -#else -#define iwl_write_restricted _iwl_write_restricted -#endif - -static inline void iwl_write_buffer_restricted(struct iwl_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++) - _iwl_write_restricted(priv, reg, *values); - } -} - -static inline int _iwl_poll_restricted_bit(struct iwl_priv *priv, - u32 addr, u32 mask, int timeout) -{ - int i = 0; - - do { - if ((_iwl_read_restricted(priv, addr) & mask) == mask) - return i; - mdelay(10); - i += 10; - } while (i < timeout); - - return -ETIMEDOUT; -} - -#ifdef CONFIG_IWLWIFI_DEBUG -static inline int __iwl_poll_restricted_bit(const char *f, u32 l, - struct iwl_priv *priv, - u32 addr, u32 mask, int timeout) -{ - int rc = _iwl_poll_restricted_bit(priv, addr, mask, timeout); - - if (unlikely(rc == -ETIMEDOUT)) - IWL_DEBUG_IO("poll_restricted_bit(0x%08X, 0x%08X) - " - "timedout - %s %d\n", addr, mask, f, l); - else - IWL_DEBUG_IO("poll_restricted_bit(0x%08X, 0x%08X) = 0x%08X " - "- %s %d\n", addr, mask, rc, f, l); - return rc; -} -#define iwl_poll_restricted_bit(iwl, addr, mask, timeout) \ - __iwl_poll_restricted_bit(__FILE__, __LINE__, iwl, addr, mask, timeout) -#else -#define iwl_poll_restricted_bit _iwl_poll_restricted_bit -#endif - -static inline u32 _iwl_read_restricted_reg(struct iwl_priv *priv, u32 reg) -{ - _iwl_write_restricted(priv, HBUS_TARG_PRPH_RADDR, reg | (3 << 24)); - return _iwl_read_restricted(priv, HBUS_TARG_PRPH_RDAT); -} -#ifdef CONFIG_IWLWIFI_DEBUG -static inline u32 __iwl_read_restricted_reg(u32 line, - struct iwl_priv *priv, u32 reg) -{ - if (!atomic_read(&priv->restrict_refcnt)) - IWL_ERROR("Unrestricted access from line %d\n", line); - return _iwl_read_restricted_reg(priv, reg); -} - -#define iwl_read_restricted_reg(priv, reg) \ - __iwl_read_restricted_reg(__LINE__, priv, reg) -#else -#define iwl_read_restricted_reg _iwl_read_restricted_reg -#endif - -static inline void _iwl_write_restricted_reg(struct iwl_priv *priv, - u32 addr, u32 val) -{ - _iwl_write_restricted(priv, HBUS_TARG_PRPH_WADDR, - ((addr & 0x0000FFFF) | (3 << 24))); - _iwl_write_restricted(priv, HBUS_TARG_PRPH_WDAT, val); -} -#ifdef CONFIG_IWLWIFI_DEBUG -static inline void __iwl_write_restricted_reg(u32 line, - struct iwl_priv *priv, - u32 addr, u32 val) -{ - if (!atomic_read(&priv->restrict_refcnt)) - IWL_ERROR("Unrestricted access from line %d\n", line); - _iwl_write_restricted_reg(priv, addr, val); -} - -#define iwl_write_restricted_reg(priv, addr, val) \ - __iwl_write_restricted_reg(__LINE__, priv, addr, val); -#else -#define iwl_write_restricted_reg _iwl_write_restricted_reg -#endif - -#define _iwl_set_bits_restricted_reg(priv, reg, mask) \ - _iwl_write_restricted_reg(priv, reg, \ - (_iwl_read_restricted_reg(priv, reg) | mask)) -#ifdef CONFIG_IWLWIFI_DEBUG -static inline void __iwl_set_bits_restricted_reg(u32 line, struct iwl_priv - *priv, u32 reg, u32 mask) -{ - if (!atomic_read(&priv->restrict_refcnt)) - IWL_ERROR("Unrestricted access from line %d\n", line); - _iwl_set_bits_restricted_reg(priv, reg, mask); -} -#define iwl_set_bits_restricted_reg(priv, reg, mask) \ - __iwl_set_bits_restricted_reg(__LINE__, priv, reg, mask) -#else -#define iwl_set_bits_restricted_reg _iwl_set_bits_restricted_reg -#endif - -#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); -} - -#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 |