soc/au1x/ac97c.c

72 static inline unsigned long RD(struct au1xpsc_audio_data *ctx, int reg)
74 	return __raw_readl(ctx->mmio + reg);
77 static inline void WR(struct au1xpsc_audio_data *ctx, int reg, unsigned long v)
79 	__raw_writel(v, ctx->mmio + reg);
86 	struct au1xpsc_audio_data *ctx = ac97_to_ctx(ac97);
93 		mutex_lock(&ctx->lock);
96 		while ((RD(ctx, AC97_STATUS) & STAT_CP) && --tmo)
103 		WR(ctx, AC97_CMDRESP, CMD_IDX(r) | CMD_READ);
109 		while ((RD(ctx, AC97_STATUS) & STAT_CP) && --tmo)
111 		data = RD(ctx, AC97_CMDRESP);
117 		mutex_unlock(&ctx->lock);
128 	struct au1xpsc_audio_data *ctx = ac97_to_ctx(ac97);
133 		mutex_lock(&ctx->lock);
135 		for (tmo = 5; (RD(ctx, AC97_STATUS) & STAT_CP) && tmo; tmo--)
142 		WR(ctx, AC97_CMDRESP, CMD_WRITE | CMD_IDX(r) | CMD_SET_DATA(v));
144 		for (tmo = 10; (RD(ctx, AC97_STATUS) & STAT_CP) && tmo; tmo--)
149 		mutex_unlock(&ctx->lock);
157 	struct au1xpsc_audio_data *ctx = ac97_to_ctx(ac97);
159 	WR(ctx, AC97_CONFIG, ctx->cfg | CFG_SG | CFG_SN);
161 	WR(ctx, AC97_CONFIG, ctx->cfg | CFG_SG);
162 	WR(ctx, AC97_CONFIG, ctx->cfg);
167 	struct au1xpsc_audio_data *ctx = ac97_to_ctx(ac97);
170 	WR(ctx, AC97_CONFIG, ctx->cfg | CFG_RS);
172 	WR(ctx, AC97_CONFIG, ctx->cfg);
176 	while (((RD(ctx, AC97_STATUS) & STAT_RD) == 0) && --i)
193 	struct au1xpsc_audio_data *ctx = snd_soc_dai_get_drvdata(dai);
194 	snd_soc_dai_set_dma_data(dai, substream, &ctx->dmaids[0]);
234 	struct au1xpsc_audio_data *ctx;
236 	ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
237 	if (!ctx)
240 	mutex_init(&ctx->lock);
251 	ctx->mmio = devm_ioremap(&pdev->dev, iores->start,
253 	if (!ctx->mmio)
259 	ctx->dmaids[SNDRV_PCM_STREAM_PLAYBACK] = dmares->start;
264 	ctx->dmaids[SNDRV_PCM_STREAM_CAPTURE] = dmares->start;
267 	WR(ctx, AC97_ENABLE, EN_D | EN_CE);
268 	WR(ctx, AC97_ENABLE, EN_CE);
270 	ctx->cfg = CFG_RC(3) | CFG_XS(3);
271 	WR(ctx, AC97_CONFIG, ctx->cfg);
273 	platform_set_drvdata(pdev, ctx);
284 	ac97c_workdata = ctx;
290 	struct au1xpsc_audio_data *ctx = platform_get_drvdata(pdev);
294 	WR(ctx, AC97_ENABLE, EN_D);	/* clock off, disable */
302 	struct au1xpsc_audio_data *ctx = dev_get_drvdata(dev);
304 	WR(ctx, AC97_ENABLE, EN_D);	/* clock off, disable */
311 	struct au1xpsc_audio_data *ctx = dev_get_drvdata(dev);
313 	WR(ctx, AC97_ENABLE, EN_D | EN_CE);
314 	WR(ctx, AC97_ENABLE, EN_CE);
315 	WR(ctx, AC97_CONFIG, ctx->cfg);