/*
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* Copyright (C) 2008 Christian Lamparter <chunkeey@web.de>
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*
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* This driver is a port from stlc45xx:
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* Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
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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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#ifndef P54SPI_H
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#define P54SPI_H
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#include <linux/mutex.h>
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#include <linux/list.h>
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#include <net/mac80211.h>
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#include "p54.h"
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/* Bit 15 is read/write bit; ON = READ, OFF = WRITE */
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#define SPI_ADRS_READ_BIT_15 0x8000
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#define SPI_ADRS_ARM_INTERRUPTS 0x00
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#define SPI_ADRS_ARM_INT_EN 0x04
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#define SPI_ADRS_HOST_INTERRUPTS 0x08
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#define SPI_ADRS_HOST_INT_EN 0x0c
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#define SPI_ADRS_HOST_INT_ACK 0x10
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#define SPI_ADRS_GEN_PURP_1 0x14
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#define SPI_ADRS_GEN_PURP_2 0x18
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#define SPI_ADRS_DEV_CTRL_STAT 0x26 /* high word */
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#define SPI_ADRS_DMA_DATA 0x28
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#define SPI_ADRS_DMA_WRITE_CTRL 0x2c
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#define SPI_ADRS_DMA_WRITE_LEN 0x2e
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#define SPI_ADRS_DMA_WRITE_BASE 0x30
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#define SPI_ADRS_DMA_READ_CTRL 0x34
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#define SPI_ADRS_DMA_READ_LEN 0x36
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#define SPI_ADRS_DMA_READ_BASE 0x38
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#define SPI_CTRL_STAT_HOST_OVERRIDE 0x8000
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#define SPI_CTRL_STAT_START_HALTED 0x4000
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#define SPI_CTRL_STAT_RAM_BOOT 0x2000
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#define SPI_CTRL_STAT_HOST_RESET 0x1000
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#define SPI_CTRL_STAT_HOST_CPU_EN 0x0800
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#define SPI_DMA_WRITE_CTRL_ENABLE 0x0001
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#define SPI_DMA_READ_CTRL_ENABLE 0x0001
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#define HOST_ALLOWED (1 << 7)
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#define SPI_TIMEOUT 100 /* msec */
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#define SPI_MAX_TX_PACKETS 32
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#define SPI_MAX_PACKET_SIZE 32767
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#define SPI_TARGET_INT_WAKEUP 0x00000001
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#define SPI_TARGET_INT_SLEEP 0x00000002
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#define SPI_TARGET_INT_RDDONE 0x00000004
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#define SPI_TARGET_INT_CTS 0x00004000
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#define SPI_TARGET_INT_DR 0x00008000
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#define SPI_HOST_INT_READY 0x00000001
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#define SPI_HOST_INT_WR_READY 0x00000002
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#define SPI_HOST_INT_SW_UPDATE 0x00000004
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#define SPI_HOST_INT_UPDATE 0x10000000
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/* clear to send */
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#define SPI_HOST_INT_CR 0x00004000
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/* data ready */
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#define SPI_HOST_INT_DR 0x00008000
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#define SPI_HOST_INTS_DEFAULT \
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(SPI_HOST_INT_READY | SPI_HOST_INT_UPDATE | SPI_HOST_INT_SW_UPDATE)
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#define TARGET_BOOT_SLEEP 50
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struct p54s_dma_regs {
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__le16 cmd;
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__le16 len;
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__le32 addr;
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} __packed;
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struct p54s_tx_info {
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struct list_head tx_list;
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};
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struct p54s_priv {
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/* p54_common has to be the first entry */
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struct p54_common common;
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struct ieee80211_hw *hw;
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struct spi_device *spi;
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struct work_struct work;
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struct mutex mutex;
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struct completion fw_comp;
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spinlock_t tx_lock;
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/* protected by tx_lock */
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struct list_head tx_pending;
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enum fw_state fw_state;
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const struct firmware *firmware;
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};
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#endif /* P54SPI_H */
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