* Copyright (c) 2000-2005 ZyDAS Technology Corporation
* Copyright (c) 2007-2009 Atheros Communications, Inc.
* Copyright 2009 Johannes Berg <johannes@sipsolutions.net>
- * Copyright 2009, 2010 Christian Lamparter <chunkeey@googlemail.com>
+ * 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
void *dataAddr;
} __packed;
struct dma_desc *nextAddr; /* Next TD address */
-} __packed;
+} __packed __aligned(4);
-/* (Up, Dn, 5x Tx, Rx), USB Int, (5x delayed Tx + retry), CAB, BA */
-#define AR9170_TERMINATOR_NUMBER_B 8
+/* Up, Dn, 5x Tx, retry, Rx, [USB Int], (CAB), (BA) */
+#define AR9170_TERMINATOR_NUMBER_B 9
#define AR9170_TERMINATOR_NUMBER_INT 1
-#ifdef CONFIG_CARL9170FW_DELAYED_TX
-#define AR9170_TERMINATOR_NUMBER_DELAY 6
-#else
-#define AR9170_TERMINATOR_NUMBER_DELAY 0
-#endif /* CONFIG_CARL9170FW_DELAYED_TX */
-
#ifdef CONFIG_CARL9170FW_CAB_QUEUE
#define AR9170_TERMINATOR_NUMBER_CAB CARL9170_INTF_NUM
#else
#endif /* CONFIG_CARL9170FW_HANDLE_BACK_REQ */
#define AR9170_TERMINATOR_NUMBER (AR9170_TERMINATOR_NUMBER_B + \
AR9170_TERMINATOR_NUMBER_INT + \
- AR9170_TERMINATOR_NUMBER_DELAY + \
AR9170_TERMINATOR_NUMBER_CAB + \
AR9170_TERMINATOR_NUMBER_BA)
* | - 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
- * | - Delayed TX (5x)
* | total: AR9170_TERMINATOR_NUMBER
* +--
* | block descriptors (dma_desc)
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] __attribute__((aligned(BLOCK_ALIGNMENT)));
- struct carl9170_sram_reserved reserved __attribute__((aligned(BLOCK_ALIGNMENT)));
+ 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;
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);
-void dma_queue_reclaim(struct dma_queue *dst, struct dma_queue *src);
-void queue_dump(void);
-void wlan_txq_hangfix(const unsigned int queue);
+
+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)
{
(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; \
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;