1 /* Copyright (C) 2009 - 2010 Ivo van Doorn <IvDoorn@gmail.com> 2 * Copyright (C) 2009 Alban Browaeys <prahal@yahoo.com> 3 * Copyright (C) 2009 Felix Fietkau <nbd@openwrt.org> 4 * Copyright (C) 2009 Luis Correia <luis.f.correia@gmail.com> 5 * Copyright (C) 2009 Mattias Nissler <mattias.nissler@gmx.de> 6 * Copyright (C) 2009 Mark Asselstine <asselsm@gmail.com> 7 * Copyright (C) 2009 Xose Vazquez Perez <xose.vazquez@gmail.com> 8 * Copyright (C) 2009 Bart Zolnierkiewicz <bzolnier@gmail.com> 9 * <http://rt2x00.serialmonkey.com> 10 * 11 * This program is free software; you can redistribute it and/or modify 12 * it under the terms of the GNU General Public License as published by 13 * the Free Software Foundation; either version 2 of the License, or 14 * (at your option) any later version. 15 * 16 * This program is distributed in the hope that it will be useful, 17 * but WITHOUT ANY WARRANTY; without even the implied warranty of 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19 * GNU General Public License for more details. 20 * 21 * You should have received a copy of the GNU General Public License 22 * along with this program; if not, see <http://www.gnu.org/licenses/>. 23 */ 24 25 /* Module: rt2800mmio 26 * Abstract: forward declarations for the rt2800mmio module. 27 */ 28 29 #ifndef RT2800MMIO_H 30 #define RT2800MMIO_H 31 32 /* 33 * Queue register offset macros 34 */ 35 #define TX_QUEUE_REG_OFFSET 0x10 36 #define TX_BASE_PTR(__x) (TX_BASE_PTR0 + ((__x) * TX_QUEUE_REG_OFFSET)) 37 #define TX_MAX_CNT(__x) (TX_MAX_CNT0 + ((__x) * TX_QUEUE_REG_OFFSET)) 38 #define TX_CTX_IDX(__x) (TX_CTX_IDX0 + ((__x) * TX_QUEUE_REG_OFFSET)) 39 #define TX_DTX_IDX(__x) (TX_DTX_IDX0 + ((__x) * TX_QUEUE_REG_OFFSET)) 40 41 /* 42 * DMA descriptor defines. 43 */ 44 #define TXD_DESC_SIZE (4 * sizeof(__le32)) 45 #define RXD_DESC_SIZE (4 * sizeof(__le32)) 46 47 /* 48 * TX descriptor format for TX, PRIO and Beacon Ring. 49 */ 50 51 /* 52 * Word0 53 */ 54 #define TXD_W0_SD_PTR0 FIELD32(0xffffffff) 55 56 /* 57 * Word1 58 */ 59 #define TXD_W1_SD_LEN1 FIELD32(0x00003fff) 60 #define TXD_W1_LAST_SEC1 FIELD32(0x00004000) 61 #define TXD_W1_BURST FIELD32(0x00008000) 62 #define TXD_W1_SD_LEN0 FIELD32(0x3fff0000) 63 #define TXD_W1_LAST_SEC0 FIELD32(0x40000000) 64 #define TXD_W1_DMA_DONE FIELD32(0x80000000) 65 66 /* 67 * Word2 68 */ 69 #define TXD_W2_SD_PTR1 FIELD32(0xffffffff) 70 71 /* 72 * Word3 73 * WIV: Wireless Info Valid. 1: Driver filled WI, 0: DMA needs to copy WI 74 * QSEL: Select on-chip FIFO ID for 2nd-stage output scheduler. 75 * 0:MGMT, 1:HCCA 2:EDCA 76 */ 77 #define TXD_W3_WIV FIELD32(0x01000000) 78 #define TXD_W3_QSEL FIELD32(0x06000000) 79 #define TXD_W3_TCO FIELD32(0x20000000) 80 #define TXD_W3_UCO FIELD32(0x40000000) 81 #define TXD_W3_ICO FIELD32(0x80000000) 82 83 /* 84 * RX descriptor format for RX Ring. 85 */ 86 87 /* 88 * Word0 89 */ 90 #define RXD_W0_SDP0 FIELD32(0xffffffff) 91 92 /* 93 * Word1 94 */ 95 #define RXD_W1_SDL1 FIELD32(0x00003fff) 96 #define RXD_W1_SDL0 FIELD32(0x3fff0000) 97 #define RXD_W1_LS0 FIELD32(0x40000000) 98 #define RXD_W1_DMA_DONE FIELD32(0x80000000) 99 100 /* 101 * Word2 102 */ 103 #define RXD_W2_SDP1 FIELD32(0xffffffff) 104 105 /* 106 * Word3 107 * AMSDU: RX with 802.3 header, not 802.11 header. 108 * DECRYPTED: This frame is being decrypted. 109 */ 110 #define RXD_W3_BA FIELD32(0x00000001) 111 #define RXD_W3_DATA FIELD32(0x00000002) 112 #define RXD_W3_NULLDATA FIELD32(0x00000004) 113 #define RXD_W3_FRAG FIELD32(0x00000008) 114 #define RXD_W3_UNICAST_TO_ME FIELD32(0x00000010) 115 #define RXD_W3_MULTICAST FIELD32(0x00000020) 116 #define RXD_W3_BROADCAST FIELD32(0x00000040) 117 #define RXD_W3_MY_BSS FIELD32(0x00000080) 118 #define RXD_W3_CRC_ERROR FIELD32(0x00000100) 119 #define RXD_W3_CIPHER_ERROR FIELD32(0x00000600) 120 #define RXD_W3_AMSDU FIELD32(0x00000800) 121 #define RXD_W3_HTC FIELD32(0x00001000) 122 #define RXD_W3_RSSI FIELD32(0x00002000) 123 #define RXD_W3_L2PAD FIELD32(0x00004000) 124 #define RXD_W3_AMPDU FIELD32(0x00008000) 125 #define RXD_W3_DECRYPTED FIELD32(0x00010000) 126 #define RXD_W3_PLCP_SIGNAL FIELD32(0x00020000) 127 #define RXD_W3_PLCP_RSSI FIELD32(0x00040000) 128 129 /* TX descriptor initialization */ 130 __le32 *rt2800mmio_get_txwi(struct queue_entry *entry); 131 void rt2800mmio_write_tx_desc(struct queue_entry *entry, 132 struct txentry_desc *txdesc); 133 134 /* RX control handlers */ 135 void rt2800mmio_fill_rxdone(struct queue_entry *entry, 136 struct rxdone_entry_desc *rxdesc); 137 138 /* Interrupt functions */ 139 void rt2800mmio_txstatus_tasklet(unsigned long data); 140 void rt2800mmio_pretbtt_tasklet(unsigned long data); 141 void rt2800mmio_tbtt_tasklet(unsigned long data); 142 void rt2800mmio_rxdone_tasklet(unsigned long data); 143 void rt2800mmio_autowake_tasklet(unsigned long data); 144 irqreturn_t rt2800mmio_interrupt(int irq, void *dev_instance); 145 void rt2800mmio_toggle_irq(struct rt2x00_dev *rt2x00dev, 146 enum dev_state state); 147 148 /* Queue handlers */ 149 void rt2800mmio_start_queue(struct data_queue *queue); 150 void rt2800mmio_kick_queue(struct data_queue *queue); 151 void rt2800mmio_flush_queue(struct data_queue *queue, bool drop); 152 void rt2800mmio_stop_queue(struct data_queue *queue); 153 void rt2800mmio_queue_init(struct data_queue *queue); 154 155 /* Initialization functions */ 156 bool rt2800mmio_get_entry_state(struct queue_entry *entry); 157 void rt2800mmio_clear_entry(struct queue_entry *entry); 158 int rt2800mmio_init_queues(struct rt2x00_dev *rt2x00dev); 159 int rt2800mmio_init_registers(struct rt2x00_dev *rt2x00dev); 160 161 /* Device state switch handlers. */ 162 int rt2800mmio_enable_radio(struct rt2x00_dev *rt2x00dev); 163 164 #endif /* RT2800MMIO_H */ 165