1 // SPDX-License-Identifier: GPL-2.0-or-later 1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /* 2 /*
3 * ALSA driver for ICEnsemble ICE1712 (Envy2 3 * ALSA driver for ICEnsemble ICE1712 (Envy24)
4 * 4 *
5 * AK4524 / AK4528 / AK4529 / AK4355 / AK438 5 * AK4524 / AK4528 / AK4529 / AK4355 / AK4381 interface
6 * 6 *
7 * Copyright (c) 2000 Jaroslav Kysela <pe 7 * Copyright (c) 2000 Jaroslav Kysela <perex@perex.cz>
8 */ 8 */
9 9
10 #include <linux/io.h> 10 #include <linux/io.h>
11 #include <linux/delay.h> 11 #include <linux/delay.h>
12 #include <linux/interrupt.h> 12 #include <linux/interrupt.h>
13 #include <linux/slab.h> 13 #include <linux/slab.h>
14 #include <linux/init.h> 14 #include <linux/init.h>
15 #include <linux/module.h> 15 #include <linux/module.h>
16 #include <sound/core.h> 16 #include <sound/core.h>
17 #include <sound/initval.h> 17 #include <sound/initval.h>
18 #include "ice1712.h" 18 #include "ice1712.h"
19 19
20 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz 20 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
21 MODULE_DESCRIPTION("ICEnsemble ICE17xx <-> AK4 21 MODULE_DESCRIPTION("ICEnsemble ICE17xx <-> AK4xxx AD/DA chip interface");
22 MODULE_LICENSE("GPL"); 22 MODULE_LICENSE("GPL");
23 23
24 static void snd_ice1712_akm4xxx_lock(struct sn 24 static void snd_ice1712_akm4xxx_lock(struct snd_akm4xxx *ak, int chip)
25 { 25 {
26 struct snd_ice1712 *ice = ak->private_ 26 struct snd_ice1712 *ice = ak->private_data[0];
27 27
28 snd_ice1712_save_gpio_status(ice); 28 snd_ice1712_save_gpio_status(ice);
29 } 29 }
30 30
31 static void snd_ice1712_akm4xxx_unlock(struct 31 static void snd_ice1712_akm4xxx_unlock(struct snd_akm4xxx *ak, int chip)
32 { 32 {
33 struct snd_ice1712 *ice = ak->private_ 33 struct snd_ice1712 *ice = ak->private_data[0];
34 34
35 snd_ice1712_restore_gpio_status(ice); 35 snd_ice1712_restore_gpio_status(ice);
36 } 36 }
37 37
38 /* 38 /*
39 * write AK4xxx register 39 * write AK4xxx register
40 */ 40 */
41 static void snd_ice1712_akm4xxx_write(struct s 41 static void snd_ice1712_akm4xxx_write(struct snd_akm4xxx *ak, int chip,
42 unsigned 42 unsigned char addr, unsigned char data)
43 { 43 {
44 unsigned int tmp; 44 unsigned int tmp;
45 int idx; 45 int idx;
46 unsigned int addrdata; 46 unsigned int addrdata;
47 struct snd_ak4xxx_private *priv = (voi 47 struct snd_ak4xxx_private *priv = (void *)ak->private_value[0];
48 struct snd_ice1712 *ice = ak->private_ 48 struct snd_ice1712 *ice = ak->private_data[0];
49 49
50 if (snd_BUG_ON(chip < 0 || chip >= 4)) 50 if (snd_BUG_ON(chip < 0 || chip >= 4))
51 return; 51 return;
52 52
53 tmp = snd_ice1712_gpio_read(ice); 53 tmp = snd_ice1712_gpio_read(ice);
54 tmp |= priv->add_flags; 54 tmp |= priv->add_flags;
55 tmp &= ~priv->mask_flags; 55 tmp &= ~priv->mask_flags;
56 if (priv->cs_mask == priv->cs_addr) { 56 if (priv->cs_mask == priv->cs_addr) {
57 if (priv->cif) { 57 if (priv->cif) {
58 tmp |= priv->cs_mask; 58 tmp |= priv->cs_mask; /* start without chip select */
59 } else { 59 } else {
60 tmp &= ~priv->cs_mask; 60 tmp &= ~priv->cs_mask; /* chip select low */
61 snd_ice1712_gpio_write 61 snd_ice1712_gpio_write(ice, tmp);
62 udelay(1); 62 udelay(1);
63 } 63 }
64 } else { 64 } else {
65 /* doesn't handle cf=1 yet */ 65 /* doesn't handle cf=1 yet */
66 tmp &= ~priv->cs_mask; 66 tmp &= ~priv->cs_mask;
67 tmp |= priv->cs_addr; 67 tmp |= priv->cs_addr;
68 snd_ice1712_gpio_write(ice, tm 68 snd_ice1712_gpio_write(ice, tmp);
69 udelay(1); 69 udelay(1);
70 } 70 }
71 71
72 /* build I2C address + data byte */ 72 /* build I2C address + data byte */
73 addrdata = (priv->caddr << 6) | 0x20 | 73 addrdata = (priv->caddr << 6) | 0x20 | (addr & 0x1f);
74 addrdata = (addrdata << 8) | data; 74 addrdata = (addrdata << 8) | data;
75 for (idx = 15; idx >= 0; idx--) { 75 for (idx = 15; idx >= 0; idx--) {
76 /* drop clock */ 76 /* drop clock */
77 tmp &= ~priv->clk_mask; 77 tmp &= ~priv->clk_mask;
78 snd_ice1712_gpio_write(ice, tm 78 snd_ice1712_gpio_write(ice, tmp);
79 udelay(1); 79 udelay(1);
80 /* set data */ 80 /* set data */
81 if (addrdata & (1 << idx)) 81 if (addrdata & (1 << idx))
82 tmp |= priv->data_mask 82 tmp |= priv->data_mask;
83 else 83 else
84 tmp &= ~priv->data_mas 84 tmp &= ~priv->data_mask;
85 snd_ice1712_gpio_write(ice, tm 85 snd_ice1712_gpio_write(ice, tmp);
86 udelay(1); 86 udelay(1);
87 /* raise clock */ 87 /* raise clock */
88 tmp |= priv->clk_mask; 88 tmp |= priv->clk_mask;
89 snd_ice1712_gpio_write(ice, tm 89 snd_ice1712_gpio_write(ice, tmp);
90 udelay(1); 90 udelay(1);
91 } 91 }
92 92
93 if (priv->cs_mask == priv->cs_addr) { 93 if (priv->cs_mask == priv->cs_addr) {
94 if (priv->cif) { 94 if (priv->cif) {
95 /* assert a cs pulse t 95 /* assert a cs pulse to trigger */
96 tmp &= ~priv->cs_mask; 96 tmp &= ~priv->cs_mask;
97 snd_ice1712_gpio_write 97 snd_ice1712_gpio_write(ice, tmp);
98 udelay(1); 98 udelay(1);
99 } 99 }
100 tmp |= priv->cs_mask; /* chip 100 tmp |= priv->cs_mask; /* chip select high to trigger */
101 } else { 101 } else {
102 tmp &= ~priv->cs_mask; 102 tmp &= ~priv->cs_mask;
103 tmp |= priv->cs_none; /* desel 103 tmp |= priv->cs_none; /* deselect address */
104 } 104 }
105 snd_ice1712_gpio_write(ice, tmp); 105 snd_ice1712_gpio_write(ice, tmp);
106 udelay(1); 106 udelay(1);
107 } 107 }
108 108
109 /* 109 /*
110 * initialize the struct snd_akm4xxx record wi 110 * initialize the struct snd_akm4xxx record with the template
111 */ 111 */
112 int snd_ice1712_akm4xxx_init(struct snd_akm4xx 112 int snd_ice1712_akm4xxx_init(struct snd_akm4xxx *ak, const struct snd_akm4xxx *temp,
113 const struct snd_ 113 const struct snd_ak4xxx_private *_priv, struct snd_ice1712 *ice)
114 { 114 {
115 struct snd_ak4xxx_private *priv; 115 struct snd_ak4xxx_private *priv;
116 116
117 if (_priv != NULL) { 117 if (_priv != NULL) {
118 priv = kmalloc(sizeof(*priv), 118 priv = kmalloc(sizeof(*priv), GFP_KERNEL);
119 if (priv == NULL) 119 if (priv == NULL)
120 return -ENOMEM; 120 return -ENOMEM;
121 *priv = *_priv; 121 *priv = *_priv;
122 } else { 122 } else {
123 priv = NULL; 123 priv = NULL;
124 } 124 }
125 *ak = *temp; 125 *ak = *temp;
126 ak->card = ice->card; 126 ak->card = ice->card;
127 ak->private_value[0] = (unsigned long) 127 ak->private_value[0] = (unsigned long)priv;
128 ak->private_data[0] = ice; 128 ak->private_data[0] = ice;
129 if (ak->ops.lock == NULL) 129 if (ak->ops.lock == NULL)
130 ak->ops.lock = snd_ice1712_akm 130 ak->ops.lock = snd_ice1712_akm4xxx_lock;
131 if (ak->ops.unlock == NULL) 131 if (ak->ops.unlock == NULL)
132 ak->ops.unlock = snd_ice1712_a 132 ak->ops.unlock = snd_ice1712_akm4xxx_unlock;
133 if (ak->ops.write == NULL) 133 if (ak->ops.write == NULL)
134 ak->ops.write = snd_ice1712_ak 134 ak->ops.write = snd_ice1712_akm4xxx_write;
135 snd_akm4xxx_init(ak); 135 snd_akm4xxx_init(ak);
136 return 0; 136 return 0;
137 } 137 }
138 138
139 void snd_ice1712_akm4xxx_free(struct snd_ice17 139 void snd_ice1712_akm4xxx_free(struct snd_ice1712 *ice)
140 { 140 {
141 unsigned int akidx; 141 unsigned int akidx;
142 if (ice->akm == NULL) 142 if (ice->akm == NULL)
143 return; 143 return;
144 for (akidx = 0; akidx < ice->akm_codec 144 for (akidx = 0; akidx < ice->akm_codecs; akidx++) {
145 struct snd_akm4xxx *ak = &ice- 145 struct snd_akm4xxx *ak = &ice->akm[akidx];
146 kfree((void*)ak->private_value 146 kfree((void*)ak->private_value[0]);
147 } 147 }
148 kfree(ice->akm); 148 kfree(ice->akm);
149 } 149 }
150 150
151 /* 151 /*
152 * build AK4xxx controls 152 * build AK4xxx controls
153 */ 153 */
154 int snd_ice1712_akm4xxx_build_controls(struct 154 int snd_ice1712_akm4xxx_build_controls(struct snd_ice1712 *ice)
155 { 155 {
156 unsigned int akidx; 156 unsigned int akidx;
157 int err; 157 int err;
158 158
159 for (akidx = 0; akidx < ice->akm_codec 159 for (akidx = 0; akidx < ice->akm_codecs; akidx++) {
160 struct snd_akm4xxx *ak = &ice- 160 struct snd_akm4xxx *ak = &ice->akm[akidx];
161 err = snd_akm4xxx_build_contro 161 err = snd_akm4xxx_build_controls(ak);
162 if (err < 0) 162 if (err < 0)
163 return err; 163 return err;
164 } 164 }
165 return 0; 165 return 0;
166 } 166 }
167 167
168 EXPORT_SYMBOL(snd_ice1712_akm4xxx_init); 168 EXPORT_SYMBOL(snd_ice1712_akm4xxx_init);
169 EXPORT_SYMBOL(snd_ice1712_akm4xxx_free); 169 EXPORT_SYMBOL(snd_ice1712_akm4xxx_free);
170 EXPORT_SYMBOL(snd_ice1712_akm4xxx_build_contro 170 EXPORT_SYMBOL(snd_ice1712_akm4xxx_build_controls);
171 171
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