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29#include <linux/module.h>
30#include <linux/moduleparam.h>
31#include <linux/device.h>
32#include <linux/delay.h>
33#include <linux/gpio.h>
34
35#include <sound/core.h>
36#include <sound/pcm.h>
37#include <sound/soc.h>
38#include <sound/soc-dapm.h>
39#include <sound/pcm_params.h>
40
41#include <asm/blackfin.h>
42#include <asm/cacheflush.h>
43#include <asm/irq.h>
44#include <asm/dma.h>
45#include <asm/portmux.h>
46
47#include "../codecs/ad73311.h"
48#include "bf5xx-sport.h"
49#include "bf5xx-i2s-pcm.h"
50#include "bf5xx-i2s.h"
51
52#if CONFIG_SND_BF5XX_SPORT_NUM == 0
53#define bfin_write_SPORT_TCR1 bfin_write_SPORT0_TCR1
54#define bfin_read_SPORT_TCR1 bfin_read_SPORT0_TCR1
55#define bfin_write_SPORT_TCR2 bfin_write_SPORT0_TCR2
56#define bfin_write_SPORT_TX16 bfin_write_SPORT0_TX16
57#define bfin_read_SPORT_STAT bfin_read_SPORT0_STAT
58#else
59#define bfin_write_SPORT_TCR1 bfin_write_SPORT1_TCR1
60#define bfin_read_SPORT_TCR1 bfin_read_SPORT1_TCR1
61#define bfin_write_SPORT_TCR2 bfin_write_SPORT1_TCR2
62#define bfin_write_SPORT_TX16 bfin_write_SPORT1_TX16
63#define bfin_read_SPORT_STAT bfin_read_SPORT1_STAT
64#endif
65
66#define GPIO_SE CONFIG_SND_BFIN_AD73311_SE
67
68static struct snd_soc_card bf5xx_ad73311;
69
70static int snd_ad73311_startup(void)
71{
72 pr_debug("%s enter\n", __func__);
73
74
75 gpio_set_value(GPIO_SE, 1);
76 return 0;
77}
78
79static int snd_ad73311_configure(void)
80{
81 unsigned short ctrl_regs[6];
82 unsigned short status = 0;
83 int count = 0;
84
85
86
87
88
89 ctrl_regs[0] = AD_CONTROL | AD_WRITE | CTRL_REG_B | REGB_MCDIV(0) | \
90 REGB_SCDIV(0) | REGB_DIRATE(0);
91 ctrl_regs[1] = AD_CONTROL | AD_WRITE | CTRL_REG_C | REGC_PUDEV | \
92 REGC_PUADC | REGC_PUDAC | REGC_PUREF | REGC_REFUSE ;
93 ctrl_regs[2] = AD_CONTROL | AD_WRITE | CTRL_REG_D | REGD_OGS(2) | \
94 REGD_IGS(2);
95 ctrl_regs[3] = AD_CONTROL | AD_WRITE | CTRL_REG_E | REGE_DA(0x1f);
96 ctrl_regs[4] = AD_CONTROL | AD_WRITE | CTRL_REG_F | REGF_SEEN ;
97 ctrl_regs[5] = AD_CONTROL | AD_WRITE | CTRL_REG_A | REGA_MODE_DATA;
98
99 local_irq_disable();
100 snd_ad73311_startup();
101 udelay(1);
102
103 bfin_write_SPORT_TCR1(TFSR);
104 bfin_write_SPORT_TCR2(0xF);
105 SSYNC();
106
107
108
109
110 for (count = 0; count < 6; count++)
111 bfin_write_SPORT_TX16(ctrl_regs[count]);
112 SSYNC();
113 bfin_write_SPORT_TCR1(bfin_read_SPORT_TCR1() | TSPEN);
114 SSYNC();
115
116
117 while (!(status & TUVF) && ++count < 10000) {
118 udelay(1);
119 status = bfin_read_SPORT_STAT();
120 SSYNC();
121 }
122 bfin_write_SPORT_TCR1(bfin_read_SPORT_TCR1() & ~TSPEN);
123 SSYNC();
124 local_irq_enable();
125
126 if (count >= 10000) {
127 printk(KERN_ERR "ad73311: failed to configure codec\n");
128 return -1;
129 }
130 return 0;
131}
132
133static int bf5xx_probe(struct platform_device *pdev)
134{
135 int err;
136 if (gpio_request(GPIO_SE, "AD73311_SE")) {
137 printk(KERN_ERR "%s: Failed ro request GPIO_%d\n", __func__, GPIO_SE);
138 return -EBUSY;
139 }
140
141 gpio_direction_output(GPIO_SE, 0);
142
143 err = snd_ad73311_configure();
144 if (err < 0)
145 return -EFAULT;
146
147 return 0;
148}
149
150static int bf5xx_ad73311_startup(struct snd_pcm_substream *substream)
151{
152 struct snd_soc_pcm_runtime *rtd = substream->private_data;
153 struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
154
155 pr_debug("%s enter\n", __func__);
156 cpu_dai->private_data = sport_handle;
157 return 0;
158}
159
160static int bf5xx_ad73311_hw_params(struct snd_pcm_substream *substream,
161 struct snd_pcm_hw_params *params)
162{
163 struct snd_soc_pcm_runtime *rtd = substream->private_data;
164 struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
165 int ret = 0;
166
167 pr_debug("%s rate %d format %x\n", __func__, params_rate(params),
168 params_format(params));
169
170
171 ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_DSP_A |
172 SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM);
173 if (ret < 0)
174 return ret;
175
176 return 0;
177}
178
179
180static struct snd_soc_ops bf5xx_ad73311_ops = {
181 .startup = bf5xx_ad73311_startup,
182 .hw_params = bf5xx_ad73311_hw_params,
183};
184
185static struct snd_soc_dai_link bf5xx_ad73311_dai = {
186 .name = "ad73311",
187 .stream_name = "AD73311",
188 .cpu_dai = &bf5xx_i2s_dai,
189 .codec_dai = &ad73311_dai,
190 .ops = &bf5xx_ad73311_ops,
191};
192
193static struct snd_soc_card bf5xx_ad73311 = {
194 .name = "bf5xx_ad73311",
195 .platform = &bf5xx_i2s_soc_platform,
196 .probe = bf5xx_probe,
197 .dai_link = &bf5xx_ad73311_dai,
198 .num_links = 1,
199};
200
201static struct snd_soc_device bf5xx_ad73311_snd_devdata = {
202 .card = &bf5xx_ad73311,
203 .codec_dev = &soc_codec_dev_ad73311,
204};
205
206static struct platform_device *bf5xx_ad73311_snd_device;
207
208static int __init bf5xx_ad73311_init(void)
209{
210 int ret;
211
212 pr_debug("%s enter\n", __func__);
213 bf5xx_ad73311_snd_device = platform_device_alloc("soc-audio", -1);
214 if (!bf5xx_ad73311_snd_device)
215 return -ENOMEM;
216
217 platform_set_drvdata(bf5xx_ad73311_snd_device, &bf5xx_ad73311_snd_devdata);
218 bf5xx_ad73311_snd_devdata.dev = &bf5xx_ad73311_snd_device->dev;
219 ret = platform_device_add(bf5xx_ad73311_snd_device);
220
221 if (ret)
222 platform_device_put(bf5xx_ad73311_snd_device);
223
224 return ret;
225}
226
227static void __exit bf5xx_ad73311_exit(void)
228{
229 pr_debug("%s enter\n", __func__);
230 platform_device_unregister(bf5xx_ad73311_snd_device);
231}
232
233module_init(bf5xx_ad73311_init);
234module_exit(bf5xx_ad73311_exit);
235
236
237MODULE_AUTHOR("Cliff Cai");
238MODULE_DESCRIPTION("ALSA SoC AD73311 Blackfin");
239MODULE_LICENSE("GPL");
240
241
