Christian Lamparter | cd8d3d3 | 2009-01-11 01:18:38 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2008 Christian Lamparter <chunkeey@web.de> |
| 3 | * |
| 4 | * This driver is a port from stlc45xx: |
| 5 | * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies). |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU General Public License |
| 9 | * version 2 as published by the Free Software Foundation. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, but |
| 12 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | * General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA |
| 19 | * 02110-1301 USA |
| 20 | */ |
| 21 | |
| 22 | #ifndef P54SPI_H |
| 23 | #define P54SPI_H |
| 24 | |
| 25 | #include <linux/mutex.h> |
| 26 | #include <linux/list.h> |
| 27 | #include <net/mac80211.h> |
Christian Lamparter | cd8d3d3 | 2009-01-11 01:18:38 +0100 | [diff] [blame] | 28 | |
| 29 | #include "p54.h" |
| 30 | |
| 31 | /* Bit 15 is read/write bit; ON = READ, OFF = WRITE */ |
| 32 | #define SPI_ADRS_READ_BIT_15 0x8000 |
| 33 | |
| 34 | #define SPI_ADRS_ARM_INTERRUPTS 0x00 |
| 35 | #define SPI_ADRS_ARM_INT_EN 0x04 |
| 36 | |
| 37 | #define SPI_ADRS_HOST_INTERRUPTS 0x08 |
| 38 | #define SPI_ADRS_HOST_INT_EN 0x0c |
| 39 | #define SPI_ADRS_HOST_INT_ACK 0x10 |
| 40 | |
| 41 | #define SPI_ADRS_GEN_PURP_1 0x14 |
| 42 | #define SPI_ADRS_GEN_PURP_2 0x18 |
| 43 | |
| 44 | #define SPI_ADRS_DEV_CTRL_STAT 0x26 /* high word */ |
| 45 | |
| 46 | #define SPI_ADRS_DMA_DATA 0x28 |
| 47 | |
| 48 | #define SPI_ADRS_DMA_WRITE_CTRL 0x2c |
| 49 | #define SPI_ADRS_DMA_WRITE_LEN 0x2e |
| 50 | #define SPI_ADRS_DMA_WRITE_BASE 0x30 |
| 51 | |
| 52 | #define SPI_ADRS_DMA_READ_CTRL 0x34 |
| 53 | #define SPI_ADRS_DMA_READ_LEN 0x36 |
| 54 | #define SPI_ADRS_DMA_READ_BASE 0x38 |
| 55 | |
| 56 | #define SPI_CTRL_STAT_HOST_OVERRIDE 0x8000 |
| 57 | #define SPI_CTRL_STAT_START_HALTED 0x4000 |
| 58 | #define SPI_CTRL_STAT_RAM_BOOT 0x2000 |
| 59 | #define SPI_CTRL_STAT_HOST_RESET 0x1000 |
| 60 | #define SPI_CTRL_STAT_HOST_CPU_EN 0x0800 |
| 61 | |
| 62 | #define SPI_DMA_WRITE_CTRL_ENABLE 0x0001 |
| 63 | #define SPI_DMA_READ_CTRL_ENABLE 0x0001 |
| 64 | #define HOST_ALLOWED (1 << 7) |
| 65 | |
| 66 | #define SPI_TIMEOUT 100 /* msec */ |
| 67 | |
| 68 | #define SPI_MAX_TX_PACKETS 32 |
| 69 | |
| 70 | #define SPI_MAX_PACKET_SIZE 32767 |
| 71 | |
| 72 | #define SPI_TARGET_INT_WAKEUP 0x00000001 |
| 73 | #define SPI_TARGET_INT_SLEEP 0x00000002 |
| 74 | #define SPI_TARGET_INT_RDDONE 0x00000004 |
| 75 | |
| 76 | #define SPI_TARGET_INT_CTS 0x00004000 |
| 77 | #define SPI_TARGET_INT_DR 0x00008000 |
| 78 | |
| 79 | #define SPI_HOST_INT_READY 0x00000001 |
| 80 | #define SPI_HOST_INT_WR_READY 0x00000002 |
| 81 | #define SPI_HOST_INT_SW_UPDATE 0x00000004 |
| 82 | #define SPI_HOST_INT_UPDATE 0x10000000 |
| 83 | |
| 84 | /* clear to send */ |
| 85 | #define SPI_HOST_INT_CR 0x00004000 |
| 86 | |
| 87 | /* data ready */ |
| 88 | #define SPI_HOST_INT_DR 0x00008000 |
| 89 | |
| 90 | #define SPI_HOST_INTS_DEFAULT \ |
| 91 | (SPI_HOST_INT_READY | SPI_HOST_INT_UPDATE | SPI_HOST_INT_SW_UPDATE) |
| 92 | |
| 93 | #define TARGET_BOOT_SLEEP 50 |
| 94 | |
| 95 | struct p54s_dma_regs { |
| 96 | __le16 cmd; |
| 97 | __le16 len; |
| 98 | __le32 addr; |
| 99 | } __attribute__ ((packed)); |
| 100 | |
| 101 | struct p54s_tx_info { |
| 102 | struct list_head tx_list; |
| 103 | }; |
| 104 | |
| 105 | struct p54s_priv { |
| 106 | /* p54_common has to be the first entry */ |
| 107 | struct p54_common common; |
| 108 | struct ieee80211_hw *hw; |
| 109 | struct spi_device *spi; |
Christian Lamparter | cd8d3d3 | 2009-01-11 01:18:38 +0100 | [diff] [blame] | 110 | |
| 111 | struct work_struct work; |
| 112 | |
| 113 | struct mutex mutex; |
| 114 | struct completion fw_comp; |
| 115 | |
| 116 | spinlock_t tx_lock; |
| 117 | |
| 118 | /* protected by tx_lock */ |
| 119 | struct list_head tx_pending; |
| 120 | |
| 121 | enum fw_state fw_state; |
| 122 | const struct firmware *firmware; |
| 123 | }; |
| 124 | |
| 125 | #endif /* P54SPI_H */ |