70ac77f869
Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 47771
132 lines
4.1 KiB
Diff
132 lines
4.1 KiB
Diff
From dcfe3dd46242050f100162dce2bcad24d2c942c6 Mon Sep 17 00:00:00 2001
|
|
From: Gabor Juhos <juhosg@openwrt.org>
|
|
Date: Sat, 17 Aug 2013 19:31:42 +0200
|
|
Subject: [PATCH] rt2x00: rt2800lib: fix beacon generation on RT3593
|
|
|
|
On the RT3593 chipset, the beacon registers are located
|
|
in the high 8KB part of the shared memory.
|
|
|
|
The high part of the shared memory is only accessible
|
|
if it is explicitly selected. Add a helper function
|
|
in order to be able to control the SHR_MSEL bit in
|
|
the PBF_SYS_CTRL register. Also add a few more helper
|
|
functions and use those to select the correct part of
|
|
the shared memory before and after accessing the beacon
|
|
registers.
|
|
|
|
The base addresses of the beacon registers are also
|
|
different from the actually used values, so fix the
|
|
'rt2800_hw_beacon_base' function to return the correct
|
|
values.
|
|
|
|
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
|
|
---
|
|
Changes since v1: ---
|
|
---
|
|
drivers/net/wireless/ralink/rt2x00/rt2800.h | 3 +++
|
|
drivers/net/wireless/ralink/rt2x00/rt2800lib.c | 44 +++++++++++++++++++++++++++++++
|
|
2 files changed, 47 insertions(+)
|
|
|
|
--- a/drivers/net/wireless/ralink/rt2x00/rt2800.h
|
|
+++ b/drivers/net/wireless/ralink/rt2x00/rt2800.h
|
|
@@ -574,6 +574,7 @@
|
|
#define PBF_SYS_CTRL 0x0400
|
|
#define PBF_SYS_CTRL_READY FIELD32(0x00000080)
|
|
#define PBF_SYS_CTRL_HOST_RAM_WRITE FIELD32(0x00010000)
|
|
+#define PBF_SYS_CTRL_SHR_MSEL FIELD32(0x00080000)
|
|
|
|
/*
|
|
* HOST-MCU shared memory
|
|
@@ -2026,6 +2027,8 @@ struct mac_iveiv_entry {
|
|
(((__index) < 6) ? (HW_BEACON_BASE4 + ((__index - 4) * 0x0200)) : \
|
|
(HW_BEACON_BASE6 - ((__index - 6) * 0x0200))))
|
|
|
|
+#define HW_BEACON_BASE_HIGH(__index) (0x4000 + (__index) * 512)
|
|
+
|
|
#define BEACON_BASE_TO_OFFSET(_base) (((_base) - 0x4000) / 64)
|
|
|
|
/*
|
|
--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
|
|
+++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
|
|
@@ -82,6 +82,39 @@ static inline bool rt2800_is_305x_soc(st
|
|
return false;
|
|
}
|
|
|
|
+static inline void rt2800_shared_mem_select(struct rt2x00_dev *rt2x00dev,
|
|
+ bool high)
|
|
+{
|
|
+ u32 reg;
|
|
+
|
|
+ if (WARN_ON_ONCE(!rt2800_has_high_shared_mem(rt2x00dev)))
|
|
+ return;
|
|
+
|
|
+ rt2800_register_read(rt2x00dev, PBF_SYS_CTRL, ®);
|
|
+ rt2x00_set_field32(®, PBF_SYS_CTRL_SHR_MSEL, high);
|
|
+ rt2800_register_write(rt2x00dev, PBF_SYS_CTRL, reg);
|
|
+}
|
|
+
|
|
+static inline bool rt2800_beacon_uses_high_mem(struct rt2x00_dev *rt2x00dev)
|
|
+{
|
|
+ if (rt2x00_rt(rt2x00dev, RT3593))
|
|
+ return true;
|
|
+
|
|
+ return false;
|
|
+}
|
|
+
|
|
+static inline void rt2800_select_beacon_mem(struct rt2x00_dev *rt2x00dev)
|
|
+{
|
|
+ if (rt2800_beacon_uses_high_mem(rt2x00dev))
|
|
+ rt2800_shared_mem_select(rt2x00dev, true);
|
|
+}
|
|
+
|
|
+static inline void rt2800_deselect_beacon_mem(struct rt2x00_dev *rt2x00dev)
|
|
+{
|
|
+ if (rt2800_beacon_uses_high_mem(rt2x00dev))
|
|
+ rt2800_shared_mem_select(rt2x00dev, false);
|
|
+}
|
|
+
|
|
static void rt2800_bbp_write(struct rt2x00_dev *rt2x00dev,
|
|
const unsigned int word, const u8 value)
|
|
{
|
|
@@ -948,6 +981,9 @@ EXPORT_SYMBOL_GPL(rt2800_txdone_entry);
|
|
static unsigned int rt2800_hw_beacon_base(struct rt2x00_dev *rt2x00dev,
|
|
unsigned int index)
|
|
{
|
|
+ if (rt2x00_rt(rt2x00dev, RT3593))
|
|
+ return HW_BEACON_BASE_HIGH(index);
|
|
+
|
|
return HW_BEACON_BASE(index);
|
|
}
|
|
|
|
@@ -1046,8 +1082,12 @@ void rt2800_write_beacon(struct queue_en
|
|
beacon_base = rt2800_hw_beacon_base(rt2x00dev, entry->entry_idx);
|
|
|
|
rt2800_shared_mem_lock(rt2x00dev);
|
|
+
|
|
+ rt2800_select_beacon_mem(rt2x00dev);
|
|
rt2800_register_multiwrite(rt2x00dev, beacon_base, entry->skb->data,
|
|
entry->skb->len + padding_len);
|
|
+ rt2800_deselect_beacon_mem(rt2x00dev);
|
|
+
|
|
rt2800_shared_mem_unlock(rt2x00dev);
|
|
__set_bit(ENTRY_BCN_ENABLED, &entry->flags);
|
|
|
|
@@ -1080,6 +1120,8 @@ static inline void rt2800_clear_beacon_r
|
|
|
|
rt2800_shared_mem_lock(rt2x00dev);
|
|
|
|
+ rt2800_select_beacon_mem(rt2x00dev);
|
|
+
|
|
/*
|
|
* For the Beacon base registers we only need to clear
|
|
* the whole TXWI which (when set to 0) will invalidate
|
|
@@ -1088,6 +1130,8 @@ static inline void rt2800_clear_beacon_r
|
|
for (i = 0; i < txwi_desc_size; i += sizeof(__le32))
|
|
rt2800_register_write(rt2x00dev, beacon_base + i, 0);
|
|
|
|
+ rt2800_deselect_beacon_mem(rt2x00dev);
|
|
+
|
|
rt2800_shared_mem_unlock(rt2x00dev);
|
|
}
|
|
|