drivers/net/wireless/ralink/rt2x00/rt2800mmio.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*      Copyright (C) 2009 - 2010 Ivo van Doorn <IvDoorn@gmail.com>
   3  *      Copyright (C) 2009 Alban Browaeys <prahal@yahoo.com>
   4  *      Copyright (C) 2009 Felix Fietkau <nbd@openwrt.org>
   5  *      Copyright (C) 2009 Luis Correia <luis.f.correia@gmail.com>
   6  *      Copyright (C) 2009 Mattias Nissler <mattias.nissler@gmx.de>
   7  *      Copyright (C) 2009 Mark Asselstine <asselsm@gmail.com>
   8  *      Copyright (C) 2009 Xose Vazquez Perez <xose.vazquez@gmail.com>
   9  *      Copyright (C) 2009 Bart Zolnierkiewicz <bzolnier@gmail.com>
  10  *      <http://rt2x00.serialmonkey.com>
  11  */
  12
  13 /*      Module: rt2800mmio
  14  *      Abstract: forward declarations for the rt2800mmio module.
  15  */
  16
  17 #ifndef RT2800MMIO_H
  18 #define RT2800MMIO_H
  19
  20 /*
  21  * Queue register offset macros
  22  */
  23 #define TX_QUEUE_REG_OFFSET     0x10
  24 #define TX_BASE_PTR(__x)        (TX_BASE_PTR0 + ((__x) * TX_QUEUE_REG_OFFSET))
  25 #define TX_MAX_CNT(__x)         (TX_MAX_CNT0 + ((__x) * TX_QUEUE_REG_OFFSET))
  26 #define TX_CTX_IDX(__x)         (TX_CTX_IDX0 + ((__x) * TX_QUEUE_REG_OFFSET))
  27 #define TX_DTX_IDX(__x)         (TX_DTX_IDX0 + ((__x) * TX_QUEUE_REG_OFFSET))
  28
  29 /*
  30  * DMA descriptor defines.
  31  */
  32 #define TXD_DESC_SIZE                   (4 * sizeof(__le32))
  33 #define RXD_DESC_SIZE                   (4 * sizeof(__le32))
  34
  35 /*
  36  * TX descriptor format for TX, PRIO and Beacon Ring.
  37  */
  38
  39 /*
  40  * Word0
  41  */
  42 #define TXD_W0_SD_PTR0                  FIELD32(0xffffffff)
  43
  44 /*
  45  * Word1
  46  */
  47 #define TXD_W1_SD_LEN1                  FIELD32(0x00003fff)
  48 #define TXD_W1_LAST_SEC1                FIELD32(0x00004000)
  49 #define TXD_W1_BURST                    FIELD32(0x00008000)
  50 #define TXD_W1_SD_LEN0                  FIELD32(0x3fff0000)
  51 #define TXD_W1_LAST_SEC0                FIELD32(0x40000000)
  52 #define TXD_W1_DMA_DONE                 FIELD32(0x80000000)
  53
  54 /*
  55  * Word2
  56  */
  57 #define TXD_W2_SD_PTR1                  FIELD32(0xffffffff)
  58
  59 /*
  60  * Word3
  61  * WIV: Wireless Info Valid. 1: Driver filled WI, 0: DMA needs to copy WI
  62  * QSEL: Select on-chip FIFO ID for 2nd-stage output scheduler.
  63  *       0:MGMT, 1:HCCA 2:EDCA
  64  */
  65 #define TXD_W3_WIV                      FIELD32(0x01000000)
  66 #define TXD_W3_QSEL                     FIELD32(0x06000000)
  67 #define TXD_W3_TCO                      FIELD32(0x20000000)
  68 #define TXD_W3_UCO                      FIELD32(0x40000000)
  69 #define TXD_W3_ICO                      FIELD32(0x80000000)
  70
  71 /*
  72  * RX descriptor format for RX Ring.
  73  */
  74
  75 /*
  76  * Word0
  77  */
  78 #define RXD_W0_SDP0                     FIELD32(0xffffffff)
  79
  80 /*
  81  * Word1
  82  */
  83 #define RXD_W1_SDL1                     FIELD32(0x00003fff)
  84 #define RXD_W1_SDL0                     FIELD32(0x3fff0000)
  85 #define RXD_W1_LS0                      FIELD32(0x40000000)
  86 #define RXD_W1_DMA_DONE                 FIELD32(0x80000000)
  87
  88 /*
  89  * Word2
  90  */
  91 #define RXD_W2_SDP1                     FIELD32(0xffffffff)
  92
  93 /*
  94  * Word3
  95  * AMSDU: RX with 802.3 header, not 802.11 header.
  96  * DECRYPTED: This frame is being decrypted.
  97  */
  98 #define RXD_W3_BA                       FIELD32(0x00000001)
  99 #define RXD_W3_DATA                     FIELD32(0x00000002)
 100 #define RXD_W3_NULLDATA                 FIELD32(0x00000004)
 101 #define RXD_W3_FRAG                     FIELD32(0x00000008)
 102 #define RXD_W3_UNICAST_TO_ME            FIELD32(0x00000010)
 103 #define RXD_W3_MULTICAST                FIELD32(0x00000020)
 104 #define RXD_W3_BROADCAST                FIELD32(0x00000040)
 105 #define RXD_W3_MY_BSS                   FIELD32(0x00000080)
 106 #define RXD_W3_CRC_ERROR                FIELD32(0x00000100)
 107 #define RXD_W3_CIPHER_ERROR             FIELD32(0x00000600)
 108 #define RXD_W3_AMSDU                    FIELD32(0x00000800)
 109 #define RXD_W3_HTC                      FIELD32(0x00001000)
 110 #define RXD_W3_RSSI                     FIELD32(0x00002000)
 111 #define RXD_W3_L2PAD                    FIELD32(0x00004000)
 112 #define RXD_W3_AMPDU                    FIELD32(0x00008000)
 113 #define RXD_W3_DECRYPTED                FIELD32(0x00010000)
 114 #define RXD_W3_PLCP_SIGNAL              FIELD32(0x00020000)
 115 #define RXD_W3_PLCP_RSSI                FIELD32(0x00040000)
 116
 117 unsigned int rt2800mmio_get_dma_done(struct data_queue *queue);
 118
 119 /* TX descriptor initialization */
 120 __le32 *rt2800mmio_get_txwi(struct queue_entry *entry);
 121 void rt2800mmio_write_tx_desc(struct queue_entry *entry,
 122                               struct txentry_desc *txdesc);
 123
 124 /* RX control handlers */
 125 void rt2800mmio_fill_rxdone(struct queue_entry *entry,
 126                             struct rxdone_entry_desc *rxdesc);
 127
 128 /* Interrupt functions */
 129 void rt2800mmio_txstatus_tasklet(unsigned long data);
 130 void rt2800mmio_pretbtt_tasklet(unsigned long data);
 131 void rt2800mmio_tbtt_tasklet(unsigned long data);
 132 void rt2800mmio_rxdone_tasklet(unsigned long data);
 133 void rt2800mmio_autowake_tasklet(unsigned long data);
 134 irqreturn_t rt2800mmio_interrupt(int irq, void *dev_instance);
 135 void rt2800mmio_toggle_irq(struct rt2x00_dev *rt2x00dev,
 136                            enum dev_state state);
 137
 138 /* Queue handlers */
 139 void rt2800mmio_start_queue(struct data_queue *queue);
 140 void rt2800mmio_kick_queue(struct data_queue *queue);
 141 void rt2800mmio_flush_queue(struct data_queue *queue, bool drop);
 142 void rt2800mmio_stop_queue(struct data_queue *queue);
 143 void rt2800mmio_queue_init(struct data_queue *queue);
 144
 145 /* Initialization functions */
 146 int rt2800mmio_probe_hw(struct rt2x00_dev *rt2x00dev);
 147 bool rt2800mmio_get_entry_state(struct queue_entry *entry);
 148 void rt2800mmio_clear_entry(struct queue_entry *entry);
 149 int rt2800mmio_init_queues(struct rt2x00_dev *rt2x00dev);
 150 int rt2800mmio_init_registers(struct rt2x00_dev *rt2x00dev);
 151
 152 /* Device state switch handlers. */
 153 int rt2800mmio_enable_radio(struct rt2x00_dev *rt2x00dev);
 154
 155 #endif /* RT2800MMIO_H */