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-rw-r--r--carl9170fw/carlfw/include/dma.h349
1 files changed, 0 insertions, 349 deletions
diff --git a/carl9170fw/carlfw/include/dma.h b/carl9170fw/carlfw/include/dma.h
deleted file mode 100644
index 8f3a9df..0000000
--- a/carl9170fw/carlfw/include/dma.h
+++ /dev/null
@@ -1,349 +0,0 @@
-/*
- * carl9170 firmware - used by the ar9170 wireless device
- *
- * This module contains DMA descriptor related definitions.
- *
- * Copyright (c) 2000-2005 ZyDAS Technology Corporation
- * Copyright (c) 2007-2009 Atheros Communications, Inc.
- * Copyright 2009 Johannes Berg <johannes@sipsolutions.net>
- * Copyright 2009-2011 Christian Lamparter <chunkeey@googlemail.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#ifndef __CARL9170FW_DMA_H
-#define __CARL9170FW_DMA_H
-
-#include "config.h"
-#include "types.h"
-#include "compiler.h"
-#include "hw.h"
-#include "ieee80211.h"
-#include "wlan.h"
-
-struct dma_desc {
- volatile uint16_t status; /* Descriptor status */
- volatile uint16_t ctrl; /* Descriptor control */
- volatile uint16_t dataSize; /* Data size */
- volatile uint16_t totalLen; /* Total length */
- struct dma_desc *lastAddr; /* Last address of this chain */
- union {
- uint8_t *_dataAddr; /* Data buffer address */
- void *dataAddr;
- } __packed;
- struct dma_desc *nextAddr; /* Next TD address */
-} __packed __aligned(4);
-
-/* Up, Dn, 5x Tx, retry, Rx, [USB Int], (CAB), FW */
-#define AR9170_TERMINATOR_NUMBER_B 10
-
-#define AR9170_TERMINATOR_NUMBER_INT 1
-
-#ifdef CONFIG_CARL9170FW_CAB_QUEUE
-#define AR9170_TERMINATOR_NUMBER_CAB CARL9170_INTF_NUM
-#else
-#define AR9170_TERMINATOR_NUMBER_CAB 0
-#endif /* CONFIG_CARL9170FW_CAB_QUEUE */
-
-#define AR9170_TERMINATOR_NUMBER (AR9170_TERMINATOR_NUMBER_B + \
- AR9170_TERMINATOR_NUMBER_INT + \
- AR9170_TERMINATOR_NUMBER_CAB)
-
-#define AR9170_BLOCK_SIZE (256 + 64)
-
-#define AR9170_DESCRIPTOR_SIZE (sizeof(struct dma_desc))
-
-struct ar9170_tx_ba_frame {
- struct ar9170_tx_hwdesc hdr;
- struct ieee80211_ba ba;
-} __packed;
-
-struct carl9170_tx_ba_superframe {
- struct carl9170_tx_superdesc s;
- struct ar9170_tx_ba_frame f;
-} __packed;
-
-struct ar9170_tx_null_frame {
- struct ar9170_tx_hwdesc hdr;
- struct ieee80211_hdr null;
-} __packed;
-
-struct carl9170_tx_null_superframe {
- struct carl9170_tx_superdesc s;
- struct ar9170_tx_null_frame f;
-} __packed;
-
-#define CARL9170_BA_BUFFER_LEN (__roundup(sizeof(struct carl9170_tx_ba_superframe), 16))
-#define CARL9170_RSP_BUFFER_LEN AR9170_BLOCK_SIZE
-
-struct carl9170_sram_reserved {
- union {
- uint32_t buf[CARL9170_BA_BUFFER_LEN / sizeof(uint32_t)];
- struct carl9170_tx_ba_superframe ba;
- } ba;
-
- union {
- uint32_t buf[CARL9170_MAX_CMD_LEN / sizeof(uint32_t)];
- struct carl9170_cmd cmd;
-
-#ifdef CONFIG_CARL9170FW_WOL
- struct carl9170_tx_null_superframe null;
-#endif /* CONFIG_CARL9170FW_WOL */
- } cmd;
-
- union {
- uint32_t buf[CARL9170_RSP_BUFFER_LEN / sizeof(uint32_t)];
- struct carl9170_rsp rsp;
- } rsp;
-
- union {
- uint32_t buf[CARL9170_INTF_NUM][AR9170_MAC_BCN_LENGTH_MAX / sizeof(uint32_t)];
- } bcn;
-};
-
-/*
- * Memory layout in RAM:
- *
- * 0x100000 +--
- * | terminator descriptors (dma_desc)
- * | - Up (to USB host)
- * | - Down (from USB host)
- * | - TX (5x, to wifi)
- * | - AMPDU TX retry
- * | - RX (from wifi)
- * | - CAB Queue
- * | - FW cmd & req descriptor
- * | - BlockAck descriptor
- * | total: AR9170_TERMINATOR_NUMBER
- * +--
- * | block descriptors (dma_desc)
- * | (AR9170_BLOCK_NUMBER)
- * AR9170_BLOCK_BUFFER_BASE +-- align to multiple of 64
- * | block buffers (AR9170_BLOCK_SIZE each)
- * | (AR9170_BLOCK_NUMBER)
- * approx. 0x117c00 +--
- * | BA buffer (128 bytes)
- * +--
- * | CMD buffer (128 bytes)
- * | - used as NULLFRAME buffer (128 bytes) for WOL
- * +--
- * | RSP buffer (320 bytes)
- * +--
- * | BEACON buffer (256 bytes)
- * +--
- * | unaccounted space / padding
- * +--
- * 0x18000
- */
-
-#define CARL9170_SRAM_RESERVED (sizeof(struct carl9170_sram_reserved))
-
-#define AR9170_FRAME_MEMORY_SIZE (AR9170_SRAM_SIZE - CARL9170_SRAM_RESERVED)
-
-#define BLOCK_ALIGNMENT 64
-
-#define NONBLOCK_DESCRIPTORS_SIZE \
- (AR9170_DESCRIPTOR_SIZE * (AR9170_TERMINATOR_NUMBER))
-
-#define NONBLOCK_DESCRIPTORS_SIZE_ALIGNED \
- (ALIGN(NONBLOCK_DESCRIPTORS_SIZE, BLOCK_ALIGNMENT))
-
-#define AR9170_BLOCK_NUMBER ((AR9170_FRAME_MEMORY_SIZE - NONBLOCK_DESCRIPTORS_SIZE_ALIGNED) / \
- (AR9170_BLOCK_SIZE + AR9170_DESCRIPTOR_SIZE))
-
-struct ar9170_data_block {
- uint8_t data[AR9170_BLOCK_SIZE];
-};
-
-struct ar9170_dma_memory {
- struct dma_desc terminator[AR9170_TERMINATOR_NUMBER];
- struct dma_desc block[AR9170_BLOCK_NUMBER];
- struct ar9170_data_block data[AR9170_BLOCK_NUMBER] __aligned(BLOCK_ALIGNMENT);
- struct carl9170_sram_reserved reserved __aligned(BLOCK_ALIGNMENT);
-};
-
-extern struct ar9170_dma_memory dma_mem;
-
-#define AR9170_DOWN_BLOCK_RATIO 2
-#define AR9170_RX_BLOCK_RATIO 1
-/* Tx 16*2 = 32 packets => 32*(5*320) */
-#define AR9170_TX_BLOCK_NUMBER (AR9170_BLOCK_NUMBER * AR9170_DOWN_BLOCK_RATIO / \
- (AR9170_RX_BLOCK_RATIO + AR9170_DOWN_BLOCK_RATIO))
-#define AR9170_RX_BLOCK_NUMBER (AR9170_BLOCK_NUMBER - AR9170_TX_BLOCK_NUMBER)
-
-/* Error code */
-#define AR9170_ERR_FS_BIT 1
-#define AR9170_ERR_LS_BIT 2
-#define AR9170_ERR_OWN_BITS 3
-#define AR9170_ERR_DATA_SIZE 4
-#define AR9170_ERR_TOTAL_LEN 5
-#define AR9170_ERR_DATA 6
-#define AR9170_ERR_SEQ 7
-#define AR9170_ERR_LEN 8
-
-/* Status bits definitions */
-/* Own bits definitions */
-#define AR9170_OWN_BITS 0x3
-#define AR9170_OWN_BITS_S 0
-#define AR9170_OWN_BITS_SW 0x0
-#define AR9170_OWN_BITS_HW 0x1
-#define AR9170_OWN_BITS_SE 0x2
-
-/* Control bits definitions */
-#define AR9170_CTRL_TXFAIL 1
-#define AR9170_CTRL_BAFAIL 2
-#define AR9170_CTRL_FAIL (AR9170_CTRL_TXFAIL | AR9170_CTRL_BAFAIL)
-
-/* First segament bit */
-#define AR9170_CTRL_LS_BIT 0x100
-/* Last segament bit */
-#define AR9170_CTRL_FS_BIT 0x200
-
-struct dma_queue {
- struct dma_desc *head;
- struct dma_desc *terminator;
-};
-
-#define DESC_PAYLOAD(a) ((void *)a->dataAddr)
-#define DESC_PAYLOAD_OFF(a, offset) ((void *)((unsigned long)(a->_dataAddr) + offset))
-
-struct dma_desc *dma_unlink_head(struct dma_queue *queue);
-void dma_init_descriptors(void);
-void dma_reclaim(struct dma_queue *q, struct dma_desc *desc);
-void dma_put(struct dma_queue *q, struct dma_desc *desc);
-
-static inline __inline bool is_terminator(struct dma_queue *q, struct dma_desc *desc)
-{
- return q->terminator == desc;
-}
-
-static inline __inline bool queue_empty(struct dma_queue *q)
-{
- return q->head == q->terminator;
-}
-
-/*
- * Get a completed packet with # descriptors. Return the first
- * descriptor and pointer the head directly by lastAddr->nextAddr
- */
-static inline __inline struct dma_desc *dma_dequeue_bits(struct dma_queue *q,
- uint16_t bits)
-{
- struct dma_desc *desc = NULL;
-
- if ((q->head->status & AR9170_OWN_BITS) == bits)
- desc = dma_unlink_head(q);
-
- return desc;
-}
-
-static inline __inline struct dma_desc *dma_dequeue_not_bits(struct dma_queue *q,
- uint16_t bits)
-{
- struct dma_desc *desc = NULL;
-
- /* AR9170_OWN_BITS_HW will be filtered out here too. */
- if ((q->head->status & AR9170_OWN_BITS) != bits)
- desc = dma_unlink_head(q);
-
- return desc;
-}
-
-#define for_each_desc_bits(desc, queue, bits) \
- while ((desc = dma_dequeue_bits(queue, bits)))
-
-#define for_each_desc_not_bits(desc, queue, bits) \
- while ((desc = dma_dequeue_not_bits(queue, bits)))
-
-#define for_each_desc(desc, queue) \
- while ((desc = dma_unlink_head(queue)))
-
-#define __for_each_desc_bits(desc, queue, bits) \
- for (desc = (queue)->head; \
- (desc != (queue)->terminator && \
- (desc->status & AR9170_OWN_BITS) == bits); \
- desc = desc->lastAddr->nextAddr)
-
-#define __while_desc_bits(desc, queue, bits) \
- for (desc = (queue)->head; \
- (!queue_empty(queue) && \
- (desc->status & AR9170_OWN_BITS) == bits); \
- desc = (queue)->head)
-
-#define __for_each_desc_continue(desc, queue) \
- for (; desc != (queue)->terminator; \
- desc = (desc)->lastAddr->nextAddr)
-
-#define __for_each_desc(desc, queue) \
- for (desc = (queue)->head; \
- desc != (queue)->terminator; \
- desc = (desc)->lastAddr->nextAddr)
-
-#define __for_each_desc_safe(desc, tmp, queue) \
- for (desc = (queue)->head, tmp = desc->lastAddr->nextAddr; \
- desc != (queue)->terminator; \
- desc = tmp, tmp = tmp->lastAddr->nextAddr)
-
-#define __while_subdesc(desc, queue) \
- for (desc = (queue)->head; \
- desc != (queue)->terminator; \
- desc = (desc)->nextAddr)
-
-static inline __inline unsigned int queue_len(struct dma_queue *q)
-{
- struct dma_desc *desc;
- unsigned int i = 0;
-
- __while_subdesc(desc, q)
- i++;
-
- return i;
-}
-
-/*
- * rearm a completed packet, so it will be processed agian.
- */
-static inline __inline void dma_rearm(struct dma_desc *desc)
-{
- /* Set OWN bit to HW */
- desc->status = ((desc->status & (~AR9170_OWN_BITS)) |
- AR9170_OWN_BITS_HW);
-}
-
-static inline __inline void dma_fix_downqueue(struct dma_desc *desc)
-{
- desc->status = AR9170_OWN_BITS_HW;
- desc->ctrl = 0;
- desc->dataSize = 0;
- desc->totalLen = AR9170_BLOCK_SIZE;
- desc->lastAddr = desc;
-}
-
-static inline void __check_desc(void)
-{
- struct ar9170_dma_memory mem;
- BUILD_BUG_ON(sizeof(struct ar9170_data_block) != AR9170_BLOCK_SIZE);
- BUILD_BUG_ON(sizeof(struct dma_desc) != 20);
-
- BUILD_BUG_ON(sizeof(mem) > AR9170_SRAM_SIZE);
-
- BUILD_BUG_ON(offsetof(struct carl9170_sram_reserved, ba.buf) & (BLOCK_ALIGNMENT - 1));
- BUILD_BUG_ON(offsetof(struct carl9170_sram_reserved, cmd.buf) & (BLOCK_ALIGNMENT - 1));
- BUILD_BUG_ON(offsetof(struct carl9170_sram_reserved, rsp.buf) & (BLOCK_ALIGNMENT - 1));
- BUILD_BUG_ON(offsetof(struct carl9170_sram_reserved, bcn.buf) & (BLOCK_ALIGNMENT - 1));
- BUILD_BUG_ON(sizeof(struct carl9170_tx_null_superframe) > CARL9170_MAX_CMD_LEN);
-}
-
-#endif /* __CARL9170FW_DMA_H */
generated by cgit v1.2.3 (git 2.39.1) at 2024-10-17 16:16:24 +0000