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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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95dac04f88
A recently added feature to the firmware enables the driver to retrieve firmware logs via the host bus (SDIO or SPI). There are two modes of operation: 1. On-demand: The FW collects its log in an internal ring buffer. This buffer can later be read, for example, upon recovery. 2. Continuous: The FW pushes the FW logs as special packets in the RX path. Reading the internal ring buffer does not involve the FW. Thus, as long as the HW is not in ELP, it should be possible to read the logs, even if the FW crashes. A sysfs binary file named "fwlog" was added to support this feature, letting a monitor process read the FW messages. The log is transferred from the FW only when available, so the reading process might block. Signed-off-by: Ido Yariv <ido@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
191 lines
5.4 KiB
C
191 lines
5.4 KiB
C
/*
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* This file is part of wl1271
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*
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* Copyright (C) 1998-2009 Texas Instruments. All rights reserved.
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* Copyright (C) 2008-2010 Nokia Corporation
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*
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* Contact: Luciano Coelho <luciano.coelho@nokia.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as 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
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*
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*/
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#ifndef __IO_H__
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#define __IO_H__
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#include "reg.h"
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#define HW_ACCESS_MEMORY_MAX_RANGE 0x1FFC0
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#define HW_PARTITION_REGISTERS_ADDR 0x1FFC0
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#define HW_PART0_SIZE_ADDR (HW_PARTITION_REGISTERS_ADDR)
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#define HW_PART0_START_ADDR (HW_PARTITION_REGISTERS_ADDR + 4)
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#define HW_PART1_SIZE_ADDR (HW_PARTITION_REGISTERS_ADDR + 8)
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#define HW_PART1_START_ADDR (HW_PARTITION_REGISTERS_ADDR + 12)
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#define HW_PART2_SIZE_ADDR (HW_PARTITION_REGISTERS_ADDR + 16)
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#define HW_PART2_START_ADDR (HW_PARTITION_REGISTERS_ADDR + 20)
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#define HW_PART3_START_ADDR (HW_PARTITION_REGISTERS_ADDR + 24)
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#define HW_ACCESS_REGISTER_SIZE 4
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#define HW_ACCESS_PRAM_MAX_RANGE 0x3c000
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struct wl1271;
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void wl1271_disable_interrupts(struct wl1271 *wl);
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void wl1271_enable_interrupts(struct wl1271 *wl);
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void wl1271_io_reset(struct wl1271 *wl);
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void wl1271_io_init(struct wl1271 *wl);
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static inline struct device *wl1271_wl_to_dev(struct wl1271 *wl)
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{
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return wl->if_ops->dev(wl);
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}
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/* Raw target IO, address is not translated */
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static inline void wl1271_raw_write(struct wl1271 *wl, int addr, void *buf,
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size_t len, bool fixed)
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{
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wl->if_ops->write(wl, addr, buf, len, fixed);
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}
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static inline void wl1271_raw_read(struct wl1271 *wl, int addr, void *buf,
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size_t len, bool fixed)
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{
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wl->if_ops->read(wl, addr, buf, len, fixed);
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}
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static inline u32 wl1271_raw_read32(struct wl1271 *wl, int addr)
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{
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wl1271_raw_read(wl, addr, &wl->buffer_32,
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sizeof(wl->buffer_32), false);
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return le32_to_cpu(wl->buffer_32);
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}
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static inline void wl1271_raw_write32(struct wl1271 *wl, int addr, u32 val)
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{
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wl->buffer_32 = cpu_to_le32(val);
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wl1271_raw_write(wl, addr, &wl->buffer_32,
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sizeof(wl->buffer_32), false);
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}
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/* Translated target IO */
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static inline int wl1271_translate_addr(struct wl1271 *wl, int addr)
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{
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/*
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* To translate, first check to which window of addresses the
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* particular address belongs. Then subtract the starting address
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* of that window from the address. Then, add offset of the
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* translated region.
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*
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* The translated regions occur next to each other in physical device
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* memory, so just add the sizes of the preceding address regions to
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* get the offset to the new region.
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*
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* Currently, only the two first regions are addressed, and the
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* assumption is that all addresses will fall into either of those
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* two.
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*/
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if ((addr >= wl->part.reg.start) &&
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(addr < wl->part.reg.start + wl->part.reg.size))
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return addr - wl->part.reg.start + wl->part.mem.size;
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else
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return addr - wl->part.mem.start;
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}
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static inline void wl1271_read(struct wl1271 *wl, int addr, void *buf,
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size_t len, bool fixed)
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{
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int physical;
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physical = wl1271_translate_addr(wl, addr);
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wl1271_raw_read(wl, physical, buf, len, fixed);
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}
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static inline void wl1271_write(struct wl1271 *wl, int addr, void *buf,
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size_t len, bool fixed)
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{
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int physical;
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physical = wl1271_translate_addr(wl, addr);
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wl1271_raw_write(wl, physical, buf, len, fixed);
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}
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static inline void wl1271_read_hwaddr(struct wl1271 *wl, int hwaddr,
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void *buf, size_t len, bool fixed)
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{
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int physical;
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int addr;
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/* Addresses are stored internally as addresses to 32 bytes blocks */
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addr = hwaddr << 5;
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physical = wl1271_translate_addr(wl, addr);
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wl1271_raw_read(wl, physical, buf, len, fixed);
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}
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static inline u32 wl1271_read32(struct wl1271 *wl, int addr)
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{
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return wl1271_raw_read32(wl, wl1271_translate_addr(wl, addr));
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}
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static inline void wl1271_write32(struct wl1271 *wl, int addr, u32 val)
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{
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wl1271_raw_write32(wl, wl1271_translate_addr(wl, addr), val);
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}
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static inline void wl1271_power_off(struct wl1271 *wl)
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{
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wl->if_ops->power(wl, false);
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clear_bit(WL1271_FLAG_GPIO_POWER, &wl->flags);
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}
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static inline int wl1271_power_on(struct wl1271 *wl)
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{
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int ret = wl->if_ops->power(wl, true);
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if (ret == 0)
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set_bit(WL1271_FLAG_GPIO_POWER, &wl->flags);
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return ret;
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}
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/* Top Register IO */
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void wl1271_top_reg_write(struct wl1271 *wl, int addr, u16 val);
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u16 wl1271_top_reg_read(struct wl1271 *wl, int addr);
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int wl1271_set_partition(struct wl1271 *wl,
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struct wl1271_partition_set *p);
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/* Functions from wl1271_main.c */
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int wl1271_register_hw(struct wl1271 *wl);
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void wl1271_unregister_hw(struct wl1271 *wl);
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int wl1271_init_ieee80211(struct wl1271 *wl);
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struct ieee80211_hw *wl1271_alloc_hw(void);
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int wl1271_free_hw(struct wl1271 *wl);
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irqreturn_t wl1271_irq(int irq, void *data);
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bool wl1271_set_block_size(struct wl1271 *wl);
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int wl1271_tx_dummy_packet(struct wl1271 *wl);
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void wl1271_configure_filters(struct wl1271 *wl, unsigned int filters);
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#endif
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