139 lines
		
	
	
		
			3.9 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			139 lines
		
	
	
		
			3.9 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/*
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* Customer code to add GPIO control during WLAN start/stop
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* Copyright (C) 1999-2010, Broadcom Corporation
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* 
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*      Unless you and Broadcom execute a separate written software license
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* agreement governing use of this software, this software is licensed to you
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* under the terms of the GNU General Public License version 2 (the "GPL"),
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* available at http://www.broadcom.com/licenses/GPLv2.php, with the
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* following added to such license:
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* 
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*      As a special exception, the copyright holders of this software give you
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* permission to link this software with independent modules, and to copy and
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* distribute the resulting executable under terms of your choice, provided that
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* you also meet, for each linked independent module, the terms and conditions of
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* the license of that module.  An independent module is a module which is not
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* derived from this software.  The special exception does not apply to any
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* modifications of the software.
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* 
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*      Notwithstanding the above, under no circumstances may you combine this
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* software in any way with any other Broadcom software provided under a license
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* other than the GPL, without Broadcom's express prior written consent.
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*
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* $Id: dhd_custom_gpio.c,v 1.1.4.6 2010/02/19 22:56:49 Exp $
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*/
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#include <typedefs.h>
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#include <linuxver.h>
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#include <osl.h>
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#include <bcmutils.h>
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#include <dngl_stats.h>
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#include <dhd.h>
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#include <wlioctl.h>
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#include <wl_iw.h>
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#define WL_ERROR(x) printf x
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#define WL_TRACE(x)
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#ifdef CUSTOMER_HW
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extern  void bcm_wlan_power_off(int);
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extern  void bcm_wlan_power_on(int);
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#endif /* CUSTOMER_HW */
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#ifdef CUSTOMER_HW2
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int wifi_set_carddetect(int on);
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int wifi_set_power(int on, unsigned long msec);
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int wifi_get_irq_number(unsigned long *irq_flags_ptr);
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#endif
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#if defined(OOB_INTR_ONLY)
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#if defined(BCMLXSDMMC)
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extern int sdioh_mmc_irq(int irq);
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#endif /* (BCMLXSDMMC)  */
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/* Customer specific Host GPIO defintion  */
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static int dhd_oob_gpio_num = -1; /* GG 19 */
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module_param(dhd_oob_gpio_num, int, 0644);
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MODULE_PARM_DESC(dhd_oob_gpio_num, "DHD oob gpio number");
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int dhd_customer_oob_irq_map(unsigned long *irq_flags_ptr)
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{
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	int  host_oob_irq;
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#ifdef CUSTOMER_HW2
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	host_oob_irq = wifi_get_irq_number(irq_flags_ptr);
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#else
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#if defined(CUSTOM_OOB_GPIO_NUM)
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	if (dhd_oob_gpio_num < 0) {
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		dhd_oob_gpio_num = CUSTOM_OOB_GPIO_NUM;
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	}
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#endif
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	*irq_flags_ptr = IRQF_TRIGGER_FALLING;
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	if (dhd_oob_gpio_num < 0) {
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		WL_ERROR(("%s: ERROR customer specific Host GPIO is NOT defined \n",
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			             __FUNCTION__));
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		return (dhd_oob_gpio_num);
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	}
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	WL_ERROR(("%s: customer specific Host GPIO number is (%d)\n",
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	         __FUNCTION__, dhd_oob_gpio_num));
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	host_oob_irq = sdioh_mmc_irq(dhd_oob_gpio_num);
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#endif
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	return (host_oob_irq);
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}
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#endif /* defined(OOB_INTR_ONLY) */
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/* Customer function to control hw specific wlan gpios */
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void
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dhd_customer_gpio_wlan_ctrl(int onoff)
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{
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	switch (onoff) {
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		case WLAN_RESET_OFF:
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			WL_TRACE(("%s: call customer specific GPIO to insert WLAN RESET\n",
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				__FUNCTION__));
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#ifdef CUSTOMER_HW
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			bcm_wlan_power_off(2);
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#endif /* CUSTOMER_HW */
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#ifdef CUSTOMER_HW2
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			wifi_set_power(0, 0);
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#endif
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			WL_ERROR(("=========== WLAN placed in RESET ========\n"));
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		break;
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		case WLAN_RESET_ON:
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			WL_TRACE(("%s: callc customer specific GPIO to remove WLAN RESET\n",
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				__FUNCTION__));
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#ifdef CUSTOMER_HW
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			bcm_wlan_power_on(2);
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#endif /* CUSTOMER_HW */
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#ifdef CUSTOMER_HW2
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			wifi_set_power(1, 0);
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#endif
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			WL_ERROR(("=========== WLAN going back to live  ========\n"));
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		break;
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		case WLAN_POWER_OFF:
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			WL_TRACE(("%s: call customer specific GPIO to turn off WL_REG_ON\n",
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				__FUNCTION__));
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#ifdef CUSTOMER_HW
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			bcm_wlan_power_off(1);
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#endif /* CUSTOMER_HW */
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		break;
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		case WLAN_POWER_ON:
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			WL_TRACE(("%s: call customer specific GPIO to turn on WL_REG_ON\n",
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				__FUNCTION__));
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#ifdef CUSTOMER_HW
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			bcm_wlan_power_on(1);
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#endif /* CUSTOMER_HW */
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			/* Lets customer power to get stable */
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			OSL_DELAY(500);
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		break;
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	}
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}
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