+++ /dev/null
---- a/drivers/net/wireless/ath/ath9k/channel.c
-+++ b/drivers/net/wireless/ath/ath9k/channel.c
-@@ -15,6 +15,8 @@
- */
-
- #include "ath9k.h"
-+#include <linux/ath9k_platform.h>
-+#include "hsr.h"
-
- /* Set/change channels. If the channel is really being changed, it's done
- * by reseting the chip. To accomplish this we must first cleanup any pending
-@@ -22,6 +24,7 @@
- */
- static int ath_set_channel(struct ath_softc *sc)
- {
-+ struct ath9k_platform_data *pdata = sc->dev->platform_data;
- struct ath_hw *ah = sc->sc_ah;
- struct ath_common *common = ath9k_hw_common(ah);
- struct ieee80211_hw *hw = sc->hw;
-@@ -41,6 +44,11 @@ static int ath_set_channel(struct ath_so
- ath_dbg(common, CONFIG, "Set channel: %d MHz width: %d\n",
- chan->center_freq, chandef->width);
-
-+ if (pdata && pdata->ubnt_hsr) {
-+ ath9k_hsr_enable(ah, chandef->width, chan->center_freq);
-+ ath9k_hsr_status(ah);
-+ }
-+
- /* update survey stats for the old channel before switching */
- spin_lock_bh(&common->cc_lock);
- ath_update_survey_stats(sc);
---- /dev/null
-+++ b/drivers/net/wireless/ath/ath9k/hsr.c
-@@ -0,0 +1,247 @@
-+/*
-+ *
-+ * The MIT License (MIT)
-+ *
-+ * Copyright (c) 2015 Kirill Berezin
-+ *
-+ * Permission is hereby granted, free of charge, to any person obtaining a copy
-+ * of this software and associated documentation files (the "Software"), to deal
-+ * in the Software without restriction, including without limitation the rights
-+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-+ * copies of the Software, and to permit persons to whom the Software is
-+ * furnished to do so, subject to the following conditions:
-+ *
-+ * The above copyright notice and this permission notice shall be included in
-+ * all copies or substantial portions of the Software.
-+ *
-+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-+ * SOFTWARE.
-+ *
-+ */
-+
-+#include <linux/io.h>
-+#include <linux/slab.h>
-+#include <linux/module.h>
-+#include <linux/time.h>
-+#include <linux/bitops.h>
-+#include <linux/etherdevice.h>
-+#include <linux/rtnetlink.h>
-+#include <asm/unaligned.h>
-+
-+#include "hw.h"
-+#include "ath9k.h"
-+
-+#define HSR_GPIO_CSN 8
-+#define HSR_GPIO_CLK 6
-+#define HSR_GPIO_DOUT 7
-+#define HSR_GPIO_DIN 5
-+
-+/* delays are in useconds */
-+#define HSR_DELAY_HALF_TICK 100
-+#define HSR_DELAY_PRE_WRITE 75
-+#define HSR_DELAY_FINAL 20000
-+#define HSR_DELAY_TRAILING 200
-+
-+void ath9k_hsr_init(struct ath_hw *ah)
-+{
-+ ath9k_hw_gpio_request_in(ah, HSR_GPIO_DIN, NULL);
-+ ath9k_hw_gpio_request_out(ah, HSR_GPIO_CSN, NULL,
-+ AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
-+ ath9k_hw_gpio_request_out(ah, HSR_GPIO_CLK, NULL,
-+ AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
-+ ath9k_hw_gpio_request_out(ah, HSR_GPIO_DOUT, NULL,
-+ AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
-+
-+ ath9k_hw_set_gpio(ah, HSR_GPIO_CSN, 1);
-+ ath9k_hw_set_gpio(ah, HSR_GPIO_CLK, 0);
-+ ath9k_hw_set_gpio(ah, HSR_GPIO_DOUT, 0);
-+
-+ udelay(HSR_DELAY_TRAILING);
-+}
-+
-+static u32 ath9k_hsr_write_byte(struct ath_hw *ah, int delay, u32 value)
-+{
-+ struct ath_common *common = ath9k_hw_common(ah);
-+ int i;
-+ u32 rval = 0;
-+
-+ udelay(delay);
-+
-+ ath9k_hw_set_gpio(ah, HSR_GPIO_CLK, 0);
-+ udelay(HSR_DELAY_HALF_TICK);
-+
-+ ath9k_hw_set_gpio(ah, HSR_GPIO_CSN, 0);
-+ udelay(HSR_DELAY_HALF_TICK);
-+
-+ for (i = 0; i < 8; ++i) {
-+ rval = rval << 1;
-+
-+ /* pattern is left to right, that is 7-th bit runs first */
-+ ath9k_hw_set_gpio(ah, HSR_GPIO_DOUT, (value >> (7 - i)) & 0x1);
-+ udelay(HSR_DELAY_HALF_TICK);
-+
-+ ath9k_hw_set_gpio(ah, HSR_GPIO_CLK, 1);
-+ udelay(HSR_DELAY_HALF_TICK);
-+
-+ rval |= ath9k_hw_gpio_get(ah, HSR_GPIO_DIN);
-+
-+ ath9k_hw_set_gpio(ah, HSR_GPIO_CLK, 0);
-+ udelay(HSR_DELAY_HALF_TICK);
-+ }
-+
-+ ath9k_hw_set_gpio(ah, HSR_GPIO_CSN, 1);
-+ udelay(HSR_DELAY_HALF_TICK);
-+
-+ ath_dbg(common, CONFIG, "ath9k_hsr_write_byte: write byte %d return value is %d %c\n",
-+ value, rval, rval > 32 ? rval : '-');
-+
-+ return rval & 0xff;
-+}
-+
-+static int ath9k_hsr_write_a_chain(struct ath_hw *ah, char *chain, int items)
-+{
-+ int status = 0;
-+ int i = 0;
-+ int err;
-+
-+ /* a preamble */
-+ ath9k_hsr_write_byte(ah, HSR_DELAY_PRE_WRITE, 0);
-+ status = ath9k_hsr_write_byte(ah, HSR_DELAY_PRE_WRITE, 0);
-+
-+ /* clear HSR's reply buffer */
-+ if (status) {
-+ int loop = 0;
-+
-+ for (loop = 0; (loop < 42) && status; ++loop)
-+ status = ath9k_hsr_write_byte(ah, HSR_DELAY_PRE_WRITE,
-+ 0);
-+
-+ if (loop >= 42) {
-+ ATH_DBG_WARN(1,
-+ "ath9k_hsr_write_a_chain: can't clear an output buffer after a 42 cycles.\n");
-+ return -1;
-+ }
-+ }
-+
-+ for (i = 0; (i < items) && (chain[i] != 0); ++i)
-+ ath9k_hsr_write_byte(ah, HSR_DELAY_PRE_WRITE, (u32)chain[i]);
-+
-+ ath9k_hsr_write_byte(ah, HSR_DELAY_PRE_WRITE, 0);
-+ mdelay(HSR_DELAY_FINAL / 1000);
-+
-+ /* reply */
-+ memset(chain, 0, items);
-+
-+ ath9k_hsr_write_byte(ah, HSR_DELAY_PRE_WRITE, 0);
-+ udelay(HSR_DELAY_TRAILING);
-+
-+ for (i = 0; i < (items - 1); ++i) {
-+ u32 ret;
-+
-+ ret = ath9k_hsr_write_byte(ah, HSR_DELAY_PRE_WRITE, 0);
-+ if (ret != 0)
-+ chain[i] = (char)ret;
-+ else
-+ break;
-+
-+ udelay(HSR_DELAY_TRAILING);
-+ }
-+
-+ if (i <= 1)
-+ return 0;
-+
-+ err = kstrtoint(chain + 1, 10, &i);
-+ if (err)
-+ return err;
-+
-+ return i;
-+}
-+
-+int ath9k_hsr_disable(struct ath_hw *ah)
-+{
-+ char cmd[10] = {'b', '4', '0', 0, 0, 0, 0, 0, 0, 0};
-+ int ret;
-+
-+ ret = ath9k_hsr_write_a_chain(ah, cmd, sizeof(cmd));
-+ if ((ret > 0) && (*cmd == 'B'))
-+ return 0;
-+
-+ return -1;
-+}
-+
-+int ath9k_hsr_enable(struct ath_hw *ah, int bw, int fq)
-+{
-+ char cmd[10];
-+ int ret;
-+
-+ /* Bandwidth argument is 0 sometimes. Assume default 802.11bgn
-+ * 20MHz on invalid values
-+ */
-+ if ((bw != 5) && (bw != 10) && (bw != 20) && (bw != 40))
-+ bw = 20;
-+
-+ memset(cmd, 0, sizeof(cmd));
-+ *cmd = 'b';
-+ snprintf(cmd + 1, 3, "%02d", bw);
-+
-+ ret = ath9k_hsr_write_a_chain(ah, cmd, sizeof(cmd));
-+ if ((*cmd != 'B') || (ret != bw)) {
-+ ATH_DBG_WARN(1,
-+ "ath9k_hsr_enable: failed changing bandwidth -> set (%d,%d) reply (%d, %d)\n",
-+ 'b', bw, *cmd, ret);
-+ return -1;
-+ }
-+
-+ memset(cmd, 0, sizeof(cmd));
-+ *cmd = 'x';
-+ ret = ath9k_hsr_write_a_chain(ah, cmd, sizeof(cmd));
-+ if (*cmd != 'X') {
-+ ATH_DBG_WARN(1,
-+ "ath9k_hsr_enable: failed 'x' command -> reply (%d, %d)\n",
-+ *cmd, ret);
-+ return -1;
-+ }
-+
-+ memset(cmd, 0, sizeof(cmd));
-+ *cmd = 'm';
-+ ret = ath9k_hsr_write_a_chain(ah, cmd, sizeof(cmd));
-+ if (*cmd != 'M') {
-+ ATH_DBG_WARN(1,
-+ "ath9k_hsr_enable: failed 'm' command -> reply (%d, %d)\n",
-+ *cmd, ret);
-+ return -1;
-+ }
-+
-+ memset(cmd, 0, sizeof(cmd));
-+ *cmd = 'f';
-+ snprintf(cmd + 1, 6, "%05d", fq);
-+ ret = ath9k_hsr_write_a_chain(ah, cmd, sizeof(cmd));
-+ if ((*cmd != 'F') && (ret != fq)) {
-+ ATH_DBG_WARN(1,
-+ "ath9k_hsr_enable: failed set frequency -> reply (%d, %d)\n",
-+ *cmd, ret);
-+ return -1;
-+ }
-+
-+ return 0;
-+}
-+
-+int ath9k_hsr_status(struct ath_hw *ah)
-+{
-+ char cmd[10] = {'s', 0, 0, 0, 0, 0, 0, 0, 0, 0};
-+ int ret;
-+
-+ ret = ath9k_hsr_write_a_chain(ah, cmd, sizeof(cmd));
-+ if (*cmd != 'S') {
-+ ATH_DBG_WARN(1, "ath9k_hsr_status: returned %d,%d\n", *cmd,
-+ ret);
-+ return -1;
-+ }
-+
-+ return 0;
-+}
---- /dev/null
-+++ b/drivers/net/wireless/ath/ath9k/hsr.h
-@@ -0,0 +1,48 @@
-+/*
-+ * The MIT License (MIT)
-+ *
-+ * Copyright (c) 2015 Kirill Berezin
-+ *
-+ * Permission is hereby granted, free of charge, to any person obtaining a copy
-+ * of this software and associated documentation files (the "Software"), to deal
-+ * in the Software without restriction, including without limitation the rights
-+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-+ * copies of the Software, and to permit persons to whom the Software is
-+ * furnished to do so, subject to the following conditions:
-+ *
-+ * The above copyright notice and this permission notice shall be included in
-+ * all copies or substantial portions of the Software.
-+ *
-+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-+ * SOFTWARE.
-+ */
-+
-+#ifndef HSR_H
-+#define HSR_H
-+
-+#ifdef CPTCFG_ATH9K_UBNTHSR
-+
-+void ath9k_hsr_init(struct ath_hw *ah);
-+int ath9k_hsr_disable(struct ath_hw *ah);
-+int ath9k_hsr_enable(struct ath_hw *ah, int bw, int fq);
-+int ath9k_hsr_status(struct ath_hw *ah);
-+
-+#else
-+static inline void ath9k_hsr_init(struct ath_hw *ah) {}
-+
-+static inline int ath9k_hsr_enable(struct ath_hw *ah, int bw, int fq)
-+{
-+ return 0;
-+}
-+
-+static inline int ath9k_hsr_disable(struct ath_hw *ah) { return 0; }
-+static inline int ath9k_hsr_status(struct ath_hw *ah) { return 0; }
-+
-+#endif
-+
-+#endif /* HSR_H */
---- a/drivers/net/wireless/ath/ath9k/main.c
-+++ b/drivers/net/wireless/ath/ath9k/main.c
-@@ -16,8 +16,10 @@
-
- #include <linux/nl80211.h>
- #include <linux/delay.h>
-+#include <linux/ath9k_platform.h>
- #include "ath9k.h"
- #include "btcoex.h"
-+#include "hsr.h"
-
- u8 ath9k_parse_mpdudensity(u8 mpdudensity)
- {
-@@ -648,6 +650,7 @@ void ath_reset_work(struct work_struct *
- static int ath9k_start(struct ieee80211_hw *hw)
- {
- struct ath_softc *sc = hw->priv;
-+ struct ath9k_platform_data *pdata = sc->dev->platform_data;
- struct ath_hw *ah = sc->sc_ah;
- struct ath_common *common = ath9k_hw_common(ah);
- struct ieee80211_channel *curchan = sc->cur_chan->chandef.chan;
-@@ -726,6 +729,11 @@ static int ath9k_start(struct ieee80211_
- AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
- }
-
-+ if (pdata && pdata->ubnt_hsr) {
-+ ath9k_hsr_init(ah);
-+ ath9k_hsr_disable(ah);
-+ }
-+
- /*
- * Reset key cache to sane defaults (all entries cleared) instead of
- * semi-random values after suspend/resume.
---- a/drivers/net/wireless/ath/ath9k/Makefile
-+++ b/drivers/net/wireless/ath/ath9k/Makefile
-@@ -16,6 +16,7 @@ ath9k-$(CPTCFG_ATH9K_DFS_CERTIFIED) += d
- ath9k-$(CPTCFG_ATH9K_TX99) += tx99.o
- ath9k-$(CPTCFG_ATH9K_WOW) += wow.o
- ath9k-$(CPTCFG_ATH9K_HWRNG) += rng.o
-+ath9k-$(CPTCFG_ATH9K_UBNTHSR) += hsr.o
-
- ath9k-$(CPTCFG_ATH9K_DEBUGFS) += debug.o
-
---- a/include/linux/ath9k_platform.h
-+++ b/include/linux/ath9k_platform.h
-@@ -54,6 +54,8 @@ struct ath9k_platform_data {
- unsigned num_btns;
- const struct gpio_keys_button *btns;
- unsigned btn_poll_interval;
-+
-+ bool ubnt_hsr;
- };
-
- #endif /* _LINUX_ATH9K_PLATFORM_H */
---- a/.local-symbols
-+++ b/.local-symbols
-@@ -153,6 +153,7 @@ ATH9K_WOW=
- ATH9K_RFKILL=
- ATH9K_CHANNEL_CONTEXT=
- ATH9K_PCOEM=
-+ATH9K_UBNTHSR=
- ATH9K_HTC=
- ATH9K_HTC_DEBUGFS=
- ATH9K_HWRNG=
---- a/drivers/net/wireless/ath/ath9k/Kconfig
-+++ b/drivers/net/wireless/ath/ath9k/Kconfig
-@@ -59,6 +59,19 @@ config ATH9K_AHB
- Say Y, if you have a SoC with a compatible built-in
- wireless MAC. Say N if unsure.
-
-+config ATH9K_UBNTHSR
-+ bool "Ubiquiti UniFi Outdoor Plus HSR support"
-+ depends on ATH9K
-+ ---help---
-+ This options enables code to control the HSR RF
-+ filter in the receive path of the Ubiquiti UniFi
-+ Outdoor Plus access point.
-+
-+ Say Y if you want to use the access point. The
-+ code will only be used if the device is detected,
-+ so it does not harm other setup other than occupying
-+ a bit of memory.
-+
- config ATH9K_DEBUGFS
- bool "Atheros ath9k debugging"
- depends on ATH9K && DEBUG_FS
projects / openwrt / openwrt.git / blobdiff