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authornbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>2013-01-09 12:45:28 +0000
committernbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>2013-01-09 12:45:28 +0000
commitc18804b0095a146a511bbb68ad47a828bf7e0041 (patch)
treef7afffa09343f242197687392735469039f3141b /package/mac80211/patches/305-pending-ath9k-allow-to-load-EEPROM-content-via-firmware-API.patch
parent071b49784b403690430990bd4baa35166f4acbea (diff)
mac80211: update to 2013-01-07, add several ath9k stability fixes
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@35063 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'package/mac80211/patches/305-pending-ath9k-allow-to-load-EEPROM-content-via-firmware-API.patch')
-rw-r--r--package/mac80211/patches/305-pending-ath9k-allow-to-load-EEPROM-content-via-firmware-API.patch184
1 files changed, 0 insertions, 184 deletions
diff --git a/package/mac80211/patches/305-pending-ath9k-allow-to-load-EEPROM-content-via-firmware-API.patch b/package/mac80211/patches/305-pending-ath9k-allow-to-load-EEPROM-content-via-firmware-API.patch
deleted file mode 100644
index d710d099e..000000000
--- a/package/mac80211/patches/305-pending-ath9k-allow-to-load-EEPROM-content-via-firmware-API.patch
+++ /dev/null
@@ -1,184 +0,0 @@
-From ee4581f2f024c601a5e247ec6acab3e7df538f88 Mon Sep 17 00:00:00 2001
-From: Gabor Juhos <juhosg@openwrt.org>
-Date: Sun, 9 Dec 2012 17:31:54 +0100
-Subject: [PATCH 4/4] ath9k: allow to load EEPROM content via firmware API
-
-The calibration data for devices w/o a separate
-EEPROM chip can be specified via the 'eeprom_data'
-field of 'ath9k_platform_data'. The 'eeprom_data'
-is usually filled from board specific setup
-functions. It is easy if the EEPROM data is mapped
-to the memory, but it can be complicated if it is
-stored elsewhere.
-
-The patch adds support for loading of the EEPROM
-data via the firmware API to avoid this limitation.
-
-Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
----
- drivers/net/wireless/ath/ath9k/eeprom.c | 19 +++++++++-
- drivers/net/wireless/ath/ath9k/hw.h | 3 ++
- drivers/net/wireless/ath/ath9k/init.c | 60 ++++++++++++++++++++++++++++++-
- include/linux/ath9k_platform.h | 2 ++
- 4 files changed, 82 insertions(+), 2 deletions(-)
-
---- a/drivers/net/wireless/ath/ath9k/eeprom.c
-+++ b/drivers/net/wireless/ath/ath9k/eeprom.c
-@@ -113,12 +113,29 @@ void ath9k_hw_usb_gen_fill_eeprom(struct
- }
- }
-
-+static bool ath9k_hw_nvram_read_blob(struct ath_hw *ah, u32 off,
-+ u16 *data)
-+{
-+ u16 *blob_data;
-+
-+ if (off * sizeof(u16) > ah->eeprom_blob->size)
-+ return false;
-+
-+ blob_data = (u16 *)ah->eeprom_blob->data;
-+ *data = blob_data[off];
-+ return true;
-+}
-+
- bool ath9k_hw_nvram_read(struct ath_hw *ah, u32 off, u16 *data)
- {
- struct ath_common *common = ath9k_hw_common(ah);
- bool ret;
-
-- ret = common->bus_ops->eeprom_read(common, off, data);
-+ if (ah->eeprom_blob)
-+ ret = ath9k_hw_nvram_read_blob(ah, off, data);
-+ else
-+ ret = common->bus_ops->eeprom_read(common, off, data);
-+
- if (!ret)
- ath_dbg(common, EEPROM,
- "unable to read eeprom region at offset %u\n", off);
---- a/drivers/net/wireless/ath/ath9k/hw.h
-+++ b/drivers/net/wireless/ath/ath9k/hw.h
-@@ -20,6 +20,7 @@
- #include <linux/if_ether.h>
- #include <linux/delay.h>
- #include <linux/io.h>
-+#include <linux/firmware.h>
-
- #include "mac.h"
- #include "ani.h"
-@@ -920,6 +921,8 @@ struct ath_hw {
- bool is_clk_25mhz;
- int (*get_mac_revision)(void);
- int (*external_reset)(void);
-+
-+ const struct firmware *eeprom_blob;
- };
-
- struct ath_bus_ops {
---- a/drivers/net/wireless/ath/ath9k/init.c
-+++ b/drivers/net/wireless/ath/ath9k/init.c
-@@ -25,6 +25,11 @@
-
- #include "ath9k.h"
-
-+struct ath9k_eeprom_ctx {
-+ struct completion complete;
-+ struct ath_hw *ah;
-+};
-+
- static char *dev_info = "ath9k";
-
- MODULE_AUTHOR("Atheros Communications");
-@@ -508,6 +513,51 @@ static void ath9k_init_misc(struct ath_s
- sc->ant_comb.count = ATH_ANT_DIV_COMB_INIT_COUNT;
- }
-
-+static void ath9k_eeprom_request_cb(const struct firmware *eeprom_blob,
-+ void *ctx)
-+{
-+ struct ath9k_eeprom_ctx *ec = ctx;
-+
-+ if (eeprom_blob)
-+ ec->ah->eeprom_blob = eeprom_blob;
-+
-+ complete(&ec->complete);
-+}
-+
-+static int ath9k_eeprom_request(struct ath_softc *sc, const char *name)
-+{
-+ struct ath9k_eeprom_ctx ec;
-+ struct ath_hw *ah = ah = sc->sc_ah;
-+ int err;
-+
-+ /* try to load the EEPROM content asynchronously */
-+ init_completion(&ec.complete);
-+ ec.ah = sc->sc_ah;
-+
-+ err = request_firmware_nowait(THIS_MODULE, 1, name, sc->dev, GFP_KERNEL,
-+ &ec, ath9k_eeprom_request_cb);
-+ if (err < 0) {
-+ ath_err(ath9k_hw_common(ah),
-+ "EEPROM request failed\n");
-+ return err;
-+ }
-+
-+ wait_for_completion(&ec.complete);
-+
-+ if (!ah->eeprom_blob) {
-+ ath_err(ath9k_hw_common(ah),
-+ "Unable to load EEPROM file %s\n", name);
-+ return -EINVAL;
-+ }
-+
-+ return 0;
-+}
-+
-+static void ath9k_eeprom_release(struct ath_softc *sc)
-+{
-+ release_firmware(sc->sc_ah->eeprom_blob);
-+}
-+
- static int ath9k_init_softc(u16 devid, struct ath_softc *sc,
- const struct ath_bus_ops *bus_ops)
- {
-@@ -585,6 +635,12 @@ static int ath9k_init_softc(u16 devid, s
- ath_read_cachesize(common, &csz);
- common->cachelsz = csz << 2; /* convert to bytes */
-
-+ if (pdata && pdata->eeprom_name) {
-+ ret = ath9k_eeprom_request(sc, pdata->eeprom_name);
-+ if (ret)
-+ goto err_eeprom;
-+ }
-+
- /* Initializes the hardware for all supported chipsets */
- ret = ath9k_hw_init(ah);
- if (ret)
-@@ -621,7 +677,8 @@ err_btcoex:
- err_queues:
- ath9k_hw_deinit(ah);
- err_hw:
--
-+ ath9k_eeprom_release(sc);
-+err_eeprom:
- kfree(ah);
- sc->sc_ah = NULL;
-
-@@ -884,6 +941,7 @@ static void ath9k_deinit_softc(struct at
- if (sc->dfs_detector != NULL)
- sc->dfs_detector->exit(sc->dfs_detector);
-
-+ ath9k_eeprom_release(sc);
- kfree(sc->sc_ah);
- sc->sc_ah = NULL;
- }
---- a/include/linux/ath9k_platform.h
-+++ b/include/linux/ath9k_platform.h
-@@ -22,6 +22,8 @@
- #define ATH9K_PLAT_EEP_MAX_WORDS 2048
-
- struct ath9k_platform_data {
-+ const char *eeprom_name;
-+
- u16 eeprom_data[ATH9K_PLAT_EEP_MAX_WORDS];
- u8 *macaddr;
-