linux-next/drivers/net/wireless/ti/wl18xx/acx.c

/*
 * This file is part of wl18xx
 *
 * Copyright (C) 2011 Texas Instruments Inc.
 *
 * 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 "../wlcore/cmd.h"
#include "../wlcore/debug.h"
#include "../wlcore/acx.h"

#include "acx.h"

int wl18xx_acx_host_if_cfg_bitmap(struct wl1271 *wl, u32 host_cfg_bitmap,
				  u32 sdio_blk_size, u32 extra_mem_blks,
				  u32 len_field_size)
{
	struct wl18xx_acx_host_config_bitmap *bitmap_conf;
	int ret;

	wl1271_debug(DEBUG_ACX, "acx cfg bitmap %d blk %d spare %d field %d",
		     host_cfg_bitmap, sdio_blk_size, extra_mem_blks,
		     len_field_size);

	bitmap_conf = kzalloc(sizeof(*bitmap_conf), GFP_KERNEL);
	if (!bitmap_conf) {
		ret = -ENOMEM;
		goto out;
	}

	bitmap_conf->host_cfg_bitmap = cpu_to_le32(host_cfg_bitmap);
	bitmap_conf->host_sdio_block_size = cpu_to_le32(sdio_blk_size);
	bitmap_conf->extra_mem_blocks = cpu_to_le32(extra_mem_blks);
	bitmap_conf->length_field_size = cpu_to_le32(len_field_size);

	ret = wl1271_cmd_configure(wl, ACX_HOST_IF_CFG_BITMAP,
				   bitmap_conf, sizeof(*bitmap_conf));
	if (ret < 0) {
		wl1271_warning("wl1271 bitmap config opt failed: %d", ret);
		goto out;
	}

out:
	kfree(bitmap_conf);

	return ret;
}

int wl18xx_acx_set_checksum_state(struct wl1271 *wl)
{
	struct wl18xx_acx_checksum_state *acx;
	int ret;

	wl1271_debug(DEBUG_ACX, "acx checksum state");

	acx = kzalloc(sizeof(*acx), GFP_KERNEL);
	if (!acx) {
		ret = -ENOMEM;
		goto out;
	}

	acx->checksum_state = CHECKSUM_OFFLOAD_ENABLED;

	ret = wl1271_cmd_configure(wl, ACX_CSUM_CONFIG, acx, sizeof(*acx));
	if (ret < 0) {
		wl1271_warning("failed to set Tx checksum state: %d", ret);
		goto out;
	}

out:
	kfree(acx);
	return ret;
}

int wl18xx_acx_clear_statistics(struct wl1271 *wl)
{
	struct wl18xx_acx_clear_statistics *acx;
	int ret = 0;

	wl1271_debug(DEBUG_ACX, "acx clear statistics");

	acx = kzalloc(sizeof(*acx), GFP_KERNEL);
	if (!acx) {
		ret = -ENOMEM;
		goto out;
	}

	ret = wl1271_cmd_configure(wl, ACX_CLEAR_STATISTICS, acx, sizeof(*acx));
	if (ret < 0) {
		wl1271_warning("failed to clear firmware statistics: %d", ret);
		goto out;
	}

out:
	kfree(acx);
	return ret;
}

int wl18xx_acx_peer_ht_operation_mode(struct wl1271 *wl, u8 hlid, bool wide)
{
	struct wlcore_peer_ht_operation_mode *acx;
	int ret;

	wl1271_debug(DEBUG_ACX, "acx peer ht operation mode hlid %d bw %d",
		     hlid, wide);

	acx = kzalloc(sizeof(*acx), GFP_KERNEL);
	if (!acx) {
		ret = -ENOMEM;
		goto out;
	}

	acx->hlid = hlid;
	acx->bandwidth = wide ? WLCORE_BANDWIDTH_40MHZ : WLCORE_BANDWIDTH_20MHZ;

	ret = wl1271_cmd_configure(wl, ACX_PEER_HT_OPERATION_MODE_CFG, acx,
				   sizeof(*acx));

	if (ret < 0) {
		wl1271_warning("acx peer ht operation mode failed: %d", ret);
		goto out;
	}

out:
	kfree(acx);
	return ret;

}

/*
 * this command is basically the same as wl1271_acx_ht_capabilities,
 * with the addition of supported rates. they should be unified in
 * the next fw api change
 */
int wl18xx_acx_set_peer_cap(struct wl1271 *wl,
			    struct ieee80211_sta_ht_cap *ht_cap,
			    bool allow_ht_operation,
			    u32 rate_set, u8 hlid)
{
	struct wlcore_acx_peer_cap *acx;
	int ret = 0;
	u32 ht_capabilites = 0;

	wl1271_debug(DEBUG_ACX,
		     "acx set cap ht_supp: %d ht_cap: %d rates: 0x%x",
		     ht_cap->ht_supported, ht_cap->cap, rate_set);

	acx = kzalloc(sizeof(*acx), GFP_KERNEL);
	if (!acx) {
		ret = -ENOMEM;
		goto out;
	}

	if (allow_ht_operation && ht_cap->ht_supported) {
		/* no need to translate capabilities - use the spec values */
		ht_capabilites = ht_cap->cap;

		/*
		 * this bit is not employed by the spec but only by FW to
		 * indicate peer HT support
		 */
		ht_capabilites |= WL12XX_HT_CAP_HT_OPERATION;

		/* get data from A-MPDU parameters field */
		acx->ampdu_max_length = ht_cap->ampdu_factor;
		acx->ampdu_min_spacing = ht_cap->ampdu_density;
	}

	acx->hlid = hlid;
	acx->ht_capabilites = cpu_to_le32(ht_capabilites);
	acx->supported_rates = cpu_to_le32(rate_set);

	ret = wl1271_cmd_configure(wl, ACX_PEER_CAP, acx, sizeof(*acx));
	if (ret < 0) {
		wl1271_warning("acx ht capabilities setting failed: %d", ret);
		goto out;
	}

out:
	kfree(acx);
	return ret;
}