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ar5416_gpio.c (228836) ar5416_gpio.c (237611)
1/*
2 * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
3 * Copyright (c) 2002-2008 Atheros Communications, Inc.
4 *
5 * Permission to use, copy, modify, and/or distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 *
1/*
2 * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
3 * Copyright (c) 2002-2008 Atheros Communications, Inc.
4 *
5 * Permission to use, copy, modify, and/or distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 *
17 * $FreeBSD: head/sys/dev/ath/ath_hal/ar5416/ar5416_gpio.c 228836 2011-12-23 08:53:22Z adrian $
17 * $FreeBSD: head/sys/dev/ath/ath_hal/ar5416/ar5416_gpio.c 237611 2012-06-26 22:16:53Z adrian $
18 */
19#include "opt_ah.h"
20
21#include "ah.h"
22#include "ah_internal.h"
23#include "ah_devid.h"
24
25#include "ar5416/ar5416.h"

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80/*
81 * Configure GPIO Output lines
82 */
83HAL_BOOL
84ar5416GpioCfgOutput(struct ath_hal *ah, uint32_t gpio, HAL_GPIO_MUX_TYPE type)
85{
86 uint32_t gpio_shift, reg;
87
18 */
19#include "opt_ah.h"
20
21#include "ah.h"
22#include "ah_internal.h"
23#include "ah_devid.h"
24
25#include "ar5416/ar5416.h"

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80/*
81 * Configure GPIO Output lines
82 */
83HAL_BOOL
84ar5416GpioCfgOutput(struct ath_hal *ah, uint32_t gpio, HAL_GPIO_MUX_TYPE type)
85{
86 uint32_t gpio_shift, reg;
87
88#define N(a) (sizeof(a) / sizeof(a[0]))
89
88 HALASSERT(gpio < AH_PRIVATE(ah)->ah_caps.halNumGpioPins);
89
90 HALASSERT(gpio < AH_PRIVATE(ah)->ah_caps.halNumGpioPins);
91
92 /*
93 * This table maps the HAL GPIO pins to the actual hardware
94 * values.
95 */
96 static const u_int32_t MuxSignalConversionTable[] = {
97 AR_GPIO_OUTPUT_MUX_AS_OUTPUT,
98 AR_GPIO_OUTPUT_MUX_AS_PCIE_ATTENTION_LED,
99 AR_GPIO_OUTPUT_MUX_AS_PCIE_POWER_LED,
100 AR_GPIO_OUTPUT_MUX_AS_MAC_NETWORK_LED,
101 AR_GPIO_OUTPUT_MUX_AS_PCIE_POWER_LED,
102 AR_GPIO_OUTPUT_MUX_AS_RX_CLEAR_EXTERNAL,
103 AR_GPIO_OUTPUT_MUX_AS_TX_FRAME,
104 };
105
90 HALDEBUG(ah, HAL_DEBUG_GPIO,
91 "%s: gpio=%d, type=%d\n", __func__, gpio, type);
92
106 HALDEBUG(ah, HAL_DEBUG_GPIO,
107 "%s: gpio=%d, type=%d\n", __func__, gpio, type);
108
93 /* NB: type maps directly to hardware */
94 /* XXX this may not actually be the case, for anything but output */
95 cfgOutputMux(ah, gpio, type);
96 gpio_shift = gpio << 1; /* 2 bits per output mode */
109 /*
110 * Convert HAL signal type definitions to hardware-specific values.
111 */
112 if (type >= N(MuxSignalConversionTable)) {
113 ath_hal_printf(ah, "%s: mux %d is invalid!\n",
114 __func__,
115 type);
116 return AH_FALSE;
117 }
118 cfgOutputMux(ah, gpio, MuxSignalConversionTable[type]);
97
119
120 /* 2 bits per output mode */
121 gpio_shift = gpio << 1;
122
123 /* Always drive, rather than tristate/drive low/drive high */
98 reg = OS_REG_READ(ah, AR_GPIO_OE_OUT);
99 reg &= ~(AR_GPIO_OE_OUT_DRV << gpio_shift);
124 reg = OS_REG_READ(ah, AR_GPIO_OE_OUT);
125 reg &= ~(AR_GPIO_OE_OUT_DRV << gpio_shift);
100 /* Always drive, rather than tristate/drive low/drive high */
101 reg |= AR_GPIO_OE_OUT_DRV_ALL << gpio_shift;
102 OS_REG_WRITE(ah, AR_GPIO_OE_OUT, reg);
103
104 return AH_TRUE;
126 reg |= AR_GPIO_OE_OUT_DRV_ALL << gpio_shift;
127 OS_REG_WRITE(ah, AR_GPIO_OE_OUT, reg);
128
129 return AH_TRUE;
130#undef N
105}
106
107/*
108 * Configure GPIO Input lines
109 */
110HAL_BOOL
111ar5416GpioCfgInput(struct ath_hal *ah, uint32_t gpio)
112{

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132
133/*
134 * Configure GPIO Input lines
135 */
136HAL_BOOL
137ar5416GpioCfgInput(struct ath_hal *ah, uint32_t gpio)
138{

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