Adding upstream version 20240709.upstream/20240709upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 0 insertions, 165 deletions

diff --git a/carl9170fw/carlfw/src/hostif.c b/carl9170fw/carlfw/src/hostif.c
deleted file mode 100644
index e445d5f..0000000
--- a/carl9170fw/carlfw/src/hostif.c
+++ /dev/null
@@ -1,165 +0,0 @@
-/*
- * carl9170 firmware - used by the ar9170 wireless device
- *
- * Host interface routines
- *
- * Copyright (c) 2000-2005 ZyDAS Technology Corporation
- * Copyright (c) 2007-2009 Atheros Communications, Inc.
- * Copyright	2009	Johannes Berg <johannes@sipsolutions.net>
- * Copyright 2009-2011	Christian Lamparter <chunkeey@googlemail.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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 Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include "carl9170.h"
-#include "hostif.h"
-#include "printf.h"
-#include "wl.h"
-
-static bool length_check(struct dma_desc *desc)
-{
-	volatile struct carl9170_tx_superframe *super = __get_super(desc);
-
-	if (unlikely(desc->totalLen < sizeof(struct carl9170_tx_superdesc)))
-		return false;
-
-	/*
-	 * check if the DMA is complete, or clipped.
-	 *
-	 * NB: The hardware aligns the descriptor length to
-	 * a 4 byte boundary. This makes the direct comparison
-	 * difficult, or unnecessary complex for a hot-path.
-	 */
-	if (unlikely(super->s.len > desc->totalLen))
-		return false;
-
-	return true;
-}
-
-static void handle_download(void)
-{
-	struct dma_desc *desc;
-
-	/*
-	 * Under normal conditions, all completed descs should have
-	 * the AR9170_OWN_BITS_SE status flag set.
-	 * However there seems to be a undocumented case where the flag
-	 * is _SW ( handle_download_exception )
-	 */
-
-	for_each_desc_not_bits(desc, &fw.pta.down_queue, AR9170_OWN_BITS_HW) {
-		if (unlikely((length_check(desc) == false))) {
-			/*
-			 * There is no easy way of telling what was lost.
-			 *
-			 * Therefore we just reclaim the data.
-			 * The driver has to have some sort frame
-			 * timeout mechanism.
-			 */
-
-			wlan_tx_complete(__get_super(desc), false);
-			dma_reclaim(&fw.pta.down_queue, desc);
-			down_trigger();
-		} else {
-			wlan_tx(desc);
-		}
-	}
-
-#ifdef CONFIG_CARL9170FW_DEBUG_LED_HEARTBEAT
-	xorl(AR9170_GPIO_REG_PORT_DATA, 2);
-#endif /* CONFIG_CARL9170FW_DEBUG_LED_HEARTBEAT */
-}
-
-static void handle_upload(void)
-{
-	struct dma_desc *desc;
-
-	for_each_desc_not_bits(desc, &fw.pta.up_queue, AR9170_OWN_BITS_HW) {
-		/*
-		 * BIG FAT NOTE:
-		 *
-		 * DO NOT compare the descriptor addresses.
-		 */
-		if (DESC_PAYLOAD(desc) == (void *) &dma_mem.reserved.rsp) {
-			fw.usb.int_desc = desc;
-			fw.usb.int_desc_available = 1;
-		} else {
-			dma_reclaim(&fw.wlan.rx_queue, desc);
-			wlan_trigger(AR9170_DMA_TRIGGER_RXQ);
-		}
-	}
-
-#ifdef CONFIG_CARL9170FW_DEBUG_LED_HEARTBEAT
-	xorl(AR9170_GPIO_REG_PORT_DATA, 2);
-#endif /* CONFIG_CARL9170FW_DEBUG_LED_HEARTBEAT */
-}
-
-static void handle_download_exception(void)
-{
-	struct dma_desc *desc, *target;
-
-	/* actually, the queue should be stopped by now? */
-	usb_stop_down_queue();
-
-	target = (void *)((get(AR9170_PTA_REG_DN_CURR_ADDRH) << 16) |
-		  get(AR9170_PTA_REG_DN_CURR_ADDRL));
-
-	/*
-	 * Put "forgotten" packets from the head of the queue, back
-	 * to the current position
-	 */
-	__while_desc_bits(desc, &fw.pta.down_queue, AR9170_OWN_BITS_HW) {
-		if (desc == target)
-			break;
-
-		dma_reclaim(&fw.pta.down_queue,
-		    dma_unlink_head(&fw.pta.down_queue));
-	}
-
-	__for_each_desc_continue(desc, &fw.pta.down_queue) {
-		if ((desc->status & AR9170_OWN_BITS) == AR9170_OWN_BITS_SW)
-			dma_fix_downqueue(desc);
-	}
-
-
-	usb_start_down_queue();
-
-	down_trigger();
-}
-
-/* handle interrupts from DMA chip */
-void handle_host_interface(void)
-{
-	uint32_t pta_int;
-
-	pta_int = get(AR9170_PTA_REG_INT_FLAG);
-
-#define HANDLER(intr, flag, func)			\
-	do {						\
-		if ((intr & flag) != 0) {		\
-			func();				\
-		}					\
-	} while (0)
-
-	HANDLER(pta_int, AR9170_PTA_INT_FLAG_DN, handle_download);
-
-	HANDLER(pta_int, AR9170_PTA_INT_FLAG_UP, handle_upload);
-
-	/* This is just guesswork and MAGIC */
-	pta_int = get(AR9170_PTA_REG_DMA_STATUS);
-	HANDLER(pta_int, 0x1, handle_download_exception);
-
-#undef HANDLER
-}