wl1251: move to it's own directory

wl1271 driver is under heavy development but on the other hand the older
wl1251 driver is currently considered more as a legacy driver. To make it
easier to develop wl1271 features move wl1251 to it's own directory,
drivers/net/wireless/wl1251.

There are no functional changes, only moving of files. One regression
is that Kconfig won't be updated automatically and user needs to enable
wl1251 manually with an older config file.

Signed-off-by: Kalle Valo <kvalo@adurom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 423 insertions, 0 deletions

diff --git a/drivers/net/wireless/wl1251/init.c b/drivers/net/wireless/wl1251/init.c
new file mode 100644
index 0000000..89b43d3
--- /dev/null
+++ b/drivers/net/wireless/wl1251/init.c
@@ -0,0 +1,423 @@
+/*
+ * This file is part of wl1251
+ *
+ * Copyright (C) 2009 Nokia Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+
+#include "init.h"
+#include "wl12xx_80211.h"
+#include "acx.h"
+#include "cmd.h"
+#include "reg.h"
+
+int wl1251_hw_init_hwenc_config(struct wl1251 *wl)
+{
+	int ret;
+
+	ret = wl1251_acx_feature_cfg(wl);
+	if (ret < 0) {
+		wl1251_warning("couldn't set feature config");
+		return ret;
+	}
+
+	ret = wl1251_acx_default_key(wl, wl->default_key);
+	if (ret < 0) {
+		wl1251_warning("couldn't set default key");
+		return ret;
+	}
+
+	return 0;
+}
+
+int wl1251_hw_init_templates_config(struct wl1251 *wl)
+{
+	int ret;
+	u8 partial_vbm[PARTIAL_VBM_MAX];
+
+	/* send empty templates for fw memory reservation */
+	ret = wl1251_cmd_template_set(wl, CMD_PROBE_REQ, NULL,
+				      sizeof(struct wl12xx_probe_req_template));
+	if (ret < 0)
+		return ret;
+
+	ret = wl1251_cmd_template_set(wl, CMD_NULL_DATA, NULL,
+				      sizeof(struct wl12xx_null_data_template));
+	if (ret < 0)
+		return ret;
+
+	ret = wl1251_cmd_template_set(wl, CMD_PS_POLL, NULL,
+				      sizeof(struct wl12xx_ps_poll_template));
+	if (ret < 0)
+		return ret;
+
+	ret = wl1251_cmd_template_set(wl, CMD_QOS_NULL_DATA, NULL,
+				      sizeof
+				      (struct wl12xx_qos_null_data_template));
+	if (ret < 0)
+		return ret;
+
+	ret = wl1251_cmd_template_set(wl, CMD_PROBE_RESP, NULL,
+				      sizeof
+				      (struct wl12xx_probe_resp_template));
+	if (ret < 0)
+		return ret;
+
+	ret = wl1251_cmd_template_set(wl, CMD_BEACON, NULL,
+				      sizeof
+				      (struct wl12xx_beacon_template));
+	if (ret < 0)
+		return ret;
+
+	/* tim templates, first reserve space then allocate an empty one */
+	memset(partial_vbm, 0, PARTIAL_VBM_MAX);
+	ret = wl1251_cmd_vbm(wl, TIM_ELE_ID, partial_vbm, PARTIAL_VBM_MAX, 0);
+	if (ret < 0)
+		return ret;
+
+	ret = wl1251_cmd_vbm(wl, TIM_ELE_ID, partial_vbm, 1, 0);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+int wl1251_hw_init_rx_config(struct wl1251 *wl, u32 config, u32 filter)
+{
+	int ret;
+
+	ret = wl1251_acx_rx_msdu_life_time(wl, RX_MSDU_LIFETIME_DEF);
+	if (ret < 0)
+		return ret;
+
+	ret = wl1251_acx_rx_config(wl, config, filter);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+int wl1251_hw_init_phy_config(struct wl1251 *wl)
+{
+	int ret;
+
+	ret = wl1251_acx_pd_threshold(wl);
+	if (ret < 0)
+		return ret;
+
+	ret = wl1251_acx_slot(wl, DEFAULT_SLOT_TIME);
+	if (ret < 0)
+		return ret;
+
+	ret = wl1251_acx_group_address_tbl(wl);
+	if (ret < 0)
+		return ret;
+
+	ret = wl1251_acx_service_period_timeout(wl);
+	if (ret < 0)
+		return ret;
+
+	ret = wl1251_acx_rts_threshold(wl, RTS_THRESHOLD_DEF);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+int wl1251_hw_init_beacon_filter(struct wl1251 *wl)
+{
+	int ret;
+
+	/* disable beacon filtering at this stage */
+	ret = wl1251_acx_beacon_filter_opt(wl, false);
+	if (ret < 0)
+		return ret;
+
+	ret = wl1251_acx_beacon_filter_table(wl);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+int wl1251_hw_init_pta(struct wl1251 *wl)
+{
+	int ret;
+
+	ret = wl1251_acx_sg_enable(wl);
+	if (ret < 0)
+		return ret;
+
+	ret = wl1251_acx_sg_cfg(wl);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+int wl1251_hw_init_energy_detection(struct wl1251 *wl)
+{
+	int ret;
+
+	ret = wl1251_acx_cca_threshold(wl);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+int wl1251_hw_init_beacon_broadcast(struct wl1251 *wl)
+{
+	int ret;
+
+	ret = wl1251_acx_bcn_dtim_options(wl);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+int wl1251_hw_init_power_auth(struct wl1251 *wl)
+{
+	return wl1251_acx_sleep_auth(wl, WL1251_PSM_CAM);
+}
+
+int wl1251_hw_init_mem_config(struct wl1251 *wl)
+{
+	int ret;
+
+	ret = wl1251_acx_mem_cfg(wl);
+	if (ret < 0)
+		return ret;
+
+	wl->target_mem_map = kzalloc(sizeof(struct wl1251_acx_mem_map),
+					  GFP_KERNEL);
+	if (!wl->target_mem_map) {
+		wl1251_error("couldn't allocate target memory map");
+		return -ENOMEM;
+	}
+
+	/* we now ask for the firmware built memory map */
+	ret = wl1251_acx_mem_map(wl, wl->target_mem_map,
+				 sizeof(struct wl1251_acx_mem_map));
+	if (ret < 0) {
+		wl1251_error("couldn't retrieve firmware memory map");
+		kfree(wl->target_mem_map);
+		wl->target_mem_map = NULL;
+		return ret;
+	}
+
+	return 0;
+}
+
+static int wl1251_hw_init_txq_fill(u8 qid,
+				   struct acx_tx_queue_qos_config *config,
+				   u32 num_blocks)
+{
+	config->qid = qid;
+
+	switch (qid) {
+	case QOS_AC_BE:
+		config->high_threshold =
+			(QOS_TX_HIGH_BE_DEF * num_blocks) / 100;
+		config->low_threshold =
+			(QOS_TX_LOW_BE_DEF * num_blocks) / 100;
+		break;
+	case QOS_AC_BK:
+		config->high_threshold =
+			(QOS_TX_HIGH_BK_DEF * num_blocks) / 100;
+		config->low_threshold =
+			(QOS_TX_LOW_BK_DEF * num_blocks) / 100;
+		break;
+	case QOS_AC_VI:
+		config->high_threshold =
+			(QOS_TX_HIGH_VI_DEF * num_blocks) / 100;
+		config->low_threshold =
+			(QOS_TX_LOW_VI_DEF * num_blocks) / 100;
+		break;
+	case QOS_AC_VO:
+		config->high_threshold =
+			(QOS_TX_HIGH_VO_DEF * num_blocks) / 100;
+		config->low_threshold =
+			(QOS_TX_LOW_VO_DEF * num_blocks) / 100;
+		break;
+	default:
+		wl1251_error("Invalid TX queue id: %d", qid);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int wl1251_hw_init_tx_queue_config(struct wl1251 *wl)
+{
+	struct acx_tx_queue_qos_config *config;
+	struct wl1251_acx_mem_map *wl_mem_map = wl->target_mem_map;
+	int ret, i;
+
+	wl1251_debug(DEBUG_ACX, "acx tx queue config");
+
+	config = kzalloc(sizeof(*config), GFP_KERNEL);
+	if (!config) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	for (i = 0; i < MAX_NUM_OF_AC; i++) {
+		ret = wl1251_hw_init_txq_fill(i, config,
+					      wl_mem_map->num_tx_mem_blocks);
+		if (ret < 0)
+			goto out;
+
+		ret = wl1251_cmd_configure(wl, ACX_TX_QUEUE_CFG,
+					   config, sizeof(*config));
+		if (ret < 0)
+			goto out;
+	}
+
+	wl1251_acx_ac_cfg(wl, AC_BE, CWMIN_BE, CWMAX_BE, AIFS_DIFS, TXOP_BE);
+	wl1251_acx_ac_cfg(wl, AC_BK, CWMIN_BK, CWMAX_BK, AIFS_DIFS, TXOP_BK);
+	wl1251_acx_ac_cfg(wl, AC_VI, CWMIN_VI, CWMAX_VI, AIFS_DIFS, TXOP_VI);
+	wl1251_acx_ac_cfg(wl, AC_VO, CWMIN_VO, CWMAX_VO, AIFS_DIFS, TXOP_VO);
+
+out:
+	kfree(config);
+	return ret;
+}
+
+static int wl1251_hw_init_data_path_config(struct wl1251 *wl)
+{
+	int ret;
+
+	/* asking for the data path parameters */
+	wl->data_path = kzalloc(sizeof(struct acx_data_path_params_resp),
+				GFP_KERNEL);
+	if (!wl->data_path) {
+		wl1251_error("Couldnt allocate data path parameters");
+		return -ENOMEM;
+	}
+
+	ret = wl1251_acx_data_path_params(wl, wl->data_path);
+	if (ret < 0) {
+		kfree(wl->data_path);
+		wl->data_path = NULL;
+		return ret;
+	}
+
+	return 0;
+}
+
+
+int wl1251_hw_init(struct wl1251 *wl)
+{
+	struct wl1251_acx_mem_map *wl_mem_map;
+	int ret;
+
+	ret = wl1251_hw_init_hwenc_config(wl);
+	if (ret < 0)
+		return ret;
+
+	/* Template settings */
+	ret = wl1251_hw_init_templates_config(wl);
+	if (ret < 0)
+		return ret;
+
+	/* Default memory configuration */
+	ret = wl1251_hw_init_mem_config(wl);
+	if (ret < 0)
+		return ret;
+
+	/* Default data path configuration  */
+	ret = wl1251_hw_init_data_path_config(wl);
+	if (ret < 0)
+		goto out_free_memmap;
+
+	/* RX config */
+	ret = wl1251_hw_init_rx_config(wl,
+				       RX_CFG_PROMISCUOUS | RX_CFG_TSF,
+				       RX_FILTER_OPTION_DEF);
+	/* RX_CONFIG_OPTION_ANY_DST_ANY_BSS,
+	   RX_FILTER_OPTION_FILTER_ALL); */
+	if (ret < 0)
+		goto out_free_data_path;
+
+	/* TX queues config */
+	ret = wl1251_hw_init_tx_queue_config(wl);
+	if (ret < 0)
+		goto out_free_data_path;
+
+	/* PHY layer config */
+	ret = wl1251_hw_init_phy_config(wl);
+	if (ret < 0)
+		goto out_free_data_path;
+
+	/* Initialize connection monitoring thresholds */
+	ret = wl1251_acx_conn_monit_params(wl);
+	if (ret < 0)
+		goto out_free_data_path;
+
+	/* Beacon filtering */
+	ret = wl1251_hw_init_beacon_filter(wl);
+	if (ret < 0)
+		goto out_free_data_path;
+
+	/* Bluetooth WLAN coexistence */
+	ret = wl1251_hw_init_pta(wl);
+	if (ret < 0)
+		goto out_free_data_path;
+
+	/* Energy detection */
+	ret = wl1251_hw_init_energy_detection(wl);
+	if (ret < 0)
+		goto out_free_data_path;
+
+	/* Beacons and boradcast settings */
+	ret = wl1251_hw_init_beacon_broadcast(wl);
+	if (ret < 0)
+		goto out_free_data_path;
+
+	/* Enable data path */
+	ret = wl1251_cmd_data_path(wl, wl->channel, 1);
+	if (ret < 0)
+		goto out_free_data_path;
+
+	/* Default power state */
+	ret = wl1251_hw_init_power_auth(wl);
+	if (ret < 0)
+		goto out_free_data_path;
+
+	wl_mem_map = wl->target_mem_map;
+	wl1251_info("%d tx blocks at 0x%x, %d rx blocks at 0x%x",
+		    wl_mem_map->num_tx_mem_blocks,
+		    wl->data_path->tx_control_addr,
+		    wl_mem_map->num_rx_mem_blocks,
+		    wl->data_path->rx_control_addr);
+
+	return 0;
+
+ out_free_data_path:
+	kfree(wl->data_path);
+
+ out_free_memmap:
+	kfree(wl->target_mem_map);
+
+	return ret;
+}