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198 lines
5.7 KiB
198 lines
5.7 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* This file is part of wl1271 |
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* |
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* Copyright (C) 2008-2010 Nokia Corporation |
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* |
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* Contact: Luciano Coelho <[email protected]> |
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*/ |
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#include <linux/module.h> |
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#include <linux/platform_device.h> |
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#include <linux/spi/spi.h> |
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#include <linux/interrupt.h> |
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#include "wlcore.h" |
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#include "debug.h" |
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#include "wl12xx_80211.h" |
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#include "io.h" |
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#include "tx.h" |
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bool wl1271_set_block_size(struct wl1271 *wl) |
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{ |
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if (wl->if_ops->set_block_size) { |
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wl->if_ops->set_block_size(wl->dev, WL12XX_BUS_BLOCK_SIZE); |
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return true; |
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} |
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return false; |
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} |
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void wlcore_disable_interrupts(struct wl1271 *wl) |
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{ |
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disable_irq(wl->irq); |
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} |
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EXPORT_SYMBOL_GPL(wlcore_disable_interrupts); |
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void wlcore_disable_interrupts_nosync(struct wl1271 *wl) |
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{ |
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disable_irq_nosync(wl->irq); |
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} |
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EXPORT_SYMBOL_GPL(wlcore_disable_interrupts_nosync); |
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void wlcore_enable_interrupts(struct wl1271 *wl) |
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{ |
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enable_irq(wl->irq); |
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} |
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EXPORT_SYMBOL_GPL(wlcore_enable_interrupts); |
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void wlcore_synchronize_interrupts(struct wl1271 *wl) |
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{ |
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synchronize_irq(wl->irq); |
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} |
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EXPORT_SYMBOL_GPL(wlcore_synchronize_interrupts); |
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int wlcore_translate_addr(struct wl1271 *wl, int addr) |
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{ |
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struct wlcore_partition_set *part = &wl->curr_part; |
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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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if ((addr >= part->mem.start) && |
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(addr < part->mem.start + part->mem.size)) |
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return addr - part->mem.start; |
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else if ((addr >= part->reg.start) && |
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(addr < part->reg.start + part->reg.size)) |
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return addr - part->reg.start + part->mem.size; |
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else if ((addr >= part->mem2.start) && |
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(addr < part->mem2.start + part->mem2.size)) |
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return addr - part->mem2.start + part->mem.size + |
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part->reg.size; |
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else if ((addr >= part->mem3.start) && |
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(addr < part->mem3.start + part->mem3.size)) |
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return addr - part->mem3.start + part->mem.size + |
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part->reg.size + part->mem2.size; |
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WARN(1, "HW address 0x%x out of range", addr); |
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return 0; |
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} |
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EXPORT_SYMBOL_GPL(wlcore_translate_addr); |
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/* Set the partitions to access the chip addresses |
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* |
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* To simplify driver code, a fixed (virtual) memory map is defined for |
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* register and memory addresses. Because in the chipset, in different stages |
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* of operation, those addresses will move around, an address translation |
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* mechanism is required. |
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* |
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* There are four partitions (three memory and one register partition), |
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* which are mapped to two different areas of the hardware memory. |
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* |
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* Virtual address |
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* space |
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* |
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* | | |
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* ...+----+--> mem.start |
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* Physical address ... | | |
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* space ... | | [PART_0] |
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* ... | | |
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* 00000000 <--+----+... ...+----+--> mem.start + mem.size |
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* | | ... | | |
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* |MEM | ... | | |
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* | | ... | | |
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* mem.size <--+----+... | | {unused area) |
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* | | ... | | |
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* |REG | ... | | |
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* mem.size | | ... | | |
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* + <--+----+... ...+----+--> reg.start |
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* reg.size | | ... | | |
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* |MEM2| ... | | [PART_1] |
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* | | ... | | |
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* ...+----+--> reg.start + reg.size |
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* | | |
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* |
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*/ |
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int wlcore_set_partition(struct wl1271 *wl, |
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const struct wlcore_partition_set *p) |
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{ |
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int ret; |
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/* copy partition info */ |
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memcpy(&wl->curr_part, p, sizeof(*p)); |
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wl1271_debug(DEBUG_IO, "mem_start %08X mem_size %08X", |
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p->mem.start, p->mem.size); |
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wl1271_debug(DEBUG_IO, "reg_start %08X reg_size %08X", |
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p->reg.start, p->reg.size); |
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wl1271_debug(DEBUG_IO, "mem2_start %08X mem2_size %08X", |
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p->mem2.start, p->mem2.size); |
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wl1271_debug(DEBUG_IO, "mem3_start %08X mem3_size %08X", |
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p->mem3.start, p->mem3.size); |
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ret = wlcore_raw_write32(wl, HW_PART0_START_ADDR, p->mem.start); |
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if (ret < 0) |
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goto out; |
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ret = wlcore_raw_write32(wl, HW_PART0_SIZE_ADDR, p->mem.size); |
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if (ret < 0) |
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goto out; |
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ret = wlcore_raw_write32(wl, HW_PART1_START_ADDR, p->reg.start); |
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if (ret < 0) |
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goto out; |
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ret = wlcore_raw_write32(wl, HW_PART1_SIZE_ADDR, p->reg.size); |
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if (ret < 0) |
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goto out; |
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ret = wlcore_raw_write32(wl, HW_PART2_START_ADDR, p->mem2.start); |
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if (ret < 0) |
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goto out; |
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ret = wlcore_raw_write32(wl, HW_PART2_SIZE_ADDR, p->mem2.size); |
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if (ret < 0) |
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goto out; |
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/* wl12xx only: We don't need the size of the last partition, |
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* as it is automatically calculated based on the total memory |
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* size and the sizes of the previous partitions. |
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* |
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* wl18xx re-defines the HW_PART3 addresses for logger over |
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* SDIO support. wl12xx is expecting the write to |
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* HW_PART3_START_ADDR at offset 24. This creates conflict |
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* between the addresses. |
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* In order to fix this the expected value is written to |
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* HW_PART3_SIZE_ADDR instead which is at offset 24 after changes. |
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*/ |
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ret = wlcore_raw_write32(wl, HW_PART3_START_ADDR, p->mem3.start); |
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if (ret < 0) |
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goto out; |
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ret = wlcore_raw_write32(wl, HW_PART3_SIZE_ADDR, p->mem3.size); |
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if (ret < 0) |
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goto out; |
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out: |
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return ret; |
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} |
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EXPORT_SYMBOL_GPL(wlcore_set_partition); |
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void wl1271_io_reset(struct wl1271 *wl) |
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{ |
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if (wl->if_ops->reset) |
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wl->if_ops->reset(wl->dev); |
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} |
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void wl1271_io_init(struct wl1271 *wl) |
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{ |
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if (wl->if_ops->init) |
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wl->if_ops->init(wl->dev); |
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}
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