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Diffstat (limited to 'drivers/net/wireless/bcm43xx/bcm43xx_pio.h')
-rw-r--r--drivers/net/wireless/bcm43xx/bcm43xx_pio.h163
1 files changed, 0 insertions, 163 deletions
diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_pio.h b/drivers/net/wireless/bcm43xx/bcm43xx_pio.h
deleted file mode 100644
index bc78a3c2cafb..000000000000
--- a/drivers/net/wireless/bcm43xx/bcm43xx_pio.h
+++ /dev/null
@@ -1,163 +0,0 @@
1#ifndef BCM43xx_PIO_H_
2#define BCM43xx_PIO_H_
3
4#include "bcm43xx.h"
5
6#include <linux/interrupt.h>
7#include <linux/list.h>
8#include <linux/skbuff.h>
9
10
11#define BCM43xx_PIO_TXCTL 0x00
12#define BCM43xx_PIO_TXDATA 0x02
13#define BCM43xx_PIO_TXQBUFSIZE 0x04
14#define BCM43xx_PIO_RXCTL 0x08
15#define BCM43xx_PIO_RXDATA 0x0A
16
17#define BCM43xx_PIO_TXCTL_WRITELO (1 << 0)
18#define BCM43xx_PIO_TXCTL_WRITEHI (1 << 1)
19#define BCM43xx_PIO_TXCTL_COMPLETE (1 << 2)
20#define BCM43xx_PIO_TXCTL_INIT (1 << 3)
21#define BCM43xx_PIO_TXCTL_SUSPEND (1 << 7)
22
23#define BCM43xx_PIO_RXCTL_DATAAVAILABLE (1 << 0)
24#define BCM43xx_PIO_RXCTL_READY (1 << 1)
25
26/* PIO constants */
27#define BCM43xx_PIO_MAXTXDEVQPACKETS 31
28#define BCM43xx_PIO_TXQADJUST 80
29
30/* PIO tuning knobs */
31#define BCM43xx_PIO_MAXTXPACKETS 256
32
33
34
35#ifdef CONFIG_BCM43XX_PIO
36
37
38struct bcm43xx_pioqueue;
39struct bcm43xx_xmitstatus;
40
41struct bcm43xx_pio_txpacket {
42 struct bcm43xx_pioqueue *queue;
43 struct ieee80211_txb *txb;
44 struct list_head list;
45
46 u8 xmitted_frags;
47 u16 xmitted_octets;
48};
49
50#define pio_txpacket_getindex(packet) ((int)((packet) - (packet)->queue->tx_packets_cache))
51
52struct bcm43xx_pioqueue {
53 struct bcm43xx_private *bcm;
54 u16 mmio_base;
55
56 u8 tx_suspended:1,
57 tx_frozen:1,
58 need_workarounds:1; /* Workarounds needed for core.rev < 3 */
59
60 /* Adjusted size of the device internal TX buffer. */
61 u16 tx_devq_size;
62 /* Used octets of the device internal TX buffer. */
63 u16 tx_devq_used;
64 /* Used packet slots in the device internal TX buffer. */
65 u8 tx_devq_packets;
66 /* Packets from the txfree list can
67 * be taken on incoming TX requests.
68 */
69 struct list_head txfree;
70 unsigned int nr_txfree;
71 /* Packets on the txqueue are queued,
72 * but not completely written to the chip, yet.
73 */
74 struct list_head txqueue;
75 /* Packets on the txrunning queue are completely
76 * posted to the device. We are waiting for the txstatus.
77 */
78 struct list_head txrunning;
79 /* Total number or packets sent.
80 * (This counter can obviously wrap).
81 */
82 unsigned int nr_tx_packets;
83 struct tasklet_struct txtask;
84 struct bcm43xx_pio_txpacket tx_packets_cache[BCM43xx_PIO_MAXTXPACKETS];
85};
86
87static inline
88u16 bcm43xx_pio_read(struct bcm43xx_pioqueue *queue,
89 u16 offset)
90{
91 return bcm43xx_read16(queue->bcm, queue->mmio_base + offset);
92}
93
94static inline
95void bcm43xx_pio_write(struct bcm43xx_pioqueue *queue,
96 u16 offset, u16 value)
97{
98 bcm43xx_write16(queue->bcm, queue->mmio_base + offset, value);
99 mmiowb();
100}
101
102
103int bcm43xx_pio_init(struct bcm43xx_private *bcm);
104void bcm43xx_pio_free(struct bcm43xx_private *bcm);
105
106int bcm43xx_pio_tx(struct bcm43xx_private *bcm,
107 struct ieee80211_txb *txb);
108void bcm43xx_pio_handle_xmitstatus(struct bcm43xx_private *bcm,
109 struct bcm43xx_xmitstatus *status);
110void bcm43xx_pio_rx(struct bcm43xx_pioqueue *queue);
111
112/* Suspend a TX queue on hardware level. */
113void bcm43xx_pio_tx_suspend(struct bcm43xx_pioqueue *queue);
114void bcm43xx_pio_tx_resume(struct bcm43xx_pioqueue *queue);
115/* Suspend (freeze) the TX tasklet (software level). */
116void bcm43xx_pio_freeze_txqueues(struct bcm43xx_private *bcm);
117void bcm43xx_pio_thaw_txqueues(struct bcm43xx_private *bcm);
118
119#else /* CONFIG_BCM43XX_PIO */
120
121static inline
122int bcm43xx_pio_init(struct bcm43xx_private *bcm)
123{
124 return 0;
125}
126static inline
127void bcm43xx_pio_free(struct bcm43xx_private *bcm)
128{
129}
130static inline
131int bcm43xx_pio_tx(struct bcm43xx_private *bcm,
132 struct ieee80211_txb *txb)
133{
134 return 0;
135}
136static inline
137void bcm43xx_pio_handle_xmitstatus(struct bcm43xx_private *bcm,
138 struct bcm43xx_xmitstatus *status)
139{
140}
141static inline
142void bcm43xx_pio_rx(struct bcm43xx_pioqueue *queue)
143{
144}
145static inline
146void bcm43xx_pio_tx_suspend(struct bcm43xx_pioqueue *queue)
147{
148}
149static inline
150void bcm43xx_pio_tx_resume(struct bcm43xx_pioqueue *queue)
151{
152}
153static inline
154void bcm43xx_pio_freeze_txqueues(struct bcm43xx_private *bcm)
155{
156}
157static inline
158void bcm43xx_pio_thaw_txqueues(struct bcm43xx_private *bcm)
159{
160}
161
162#endif /* CONFIG_BCM43XX_PIO */
163#endif /* BCM43xx_PIO_H_ */
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-10 04:08:20 -0500