diff options
| -rw-r--r-- | drivers/video/fbdev/omap2/dss/hdmi5.c | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/drivers/video/fbdev/omap2/dss/hdmi5.c b/drivers/video/fbdev/omap2/dss/hdmi5.c index b482de33d440..84736667e528 100644 --- a/drivers/video/fbdev/omap2/dss/hdmi5.c +++ b/drivers/video/fbdev/omap2/dss/hdmi5.c @@ -38,6 +38,7 @@ #include <linux/gpio.h> #include <linux/regulator/consumer.h> #include <video/omapdss.h> +#include <sound/omap-hdmi-audio.h> #include "hdmi5_core.h" #include "dss.h" @@ -368,6 +369,8 @@ static int hdmi_display_enable(struct omap_dss_device *dssdev) goto err0; } + hdmi.display_enabled = true; + mutex_unlock(&hdmi.lock); return 0; @@ -382,8 +385,13 @@ static void hdmi_display_disable(struct omap_dss_device *dssdev) mutex_lock(&hdmi.lock); + if (hdmi.audio_pdev && hdmi.audio_abort_cb) + hdmi.audio_abort_cb(&hdmi.audio_pdev->dev); + hdmi_power_off_full(dssdev); + hdmi.display_enabled = false; + mutex_unlock(&hdmi.lock); } @@ -559,6 +567,112 @@ err: return r; } +/* Audio callbacks */ +static int hdmi_audio_startup(struct device *dev, + void (*abort_cb)(struct device *dev)) +{ + struct omap_hdmi *hd = dev_get_drvdata(dev); + int ret = 0; + + mutex_lock(&hd->lock); + + if (!hdmi_mode_has_audio(&hd->cfg) || !hd->display_enabled) { + ret = -EPERM; + goto out; + } + + hd->audio_abort_cb = abort_cb; + +out: + mutex_unlock(&hd->lock); + + return ret; +} + +static int hdmi_audio_shutdown(struct device *dev) +{ + struct omap_hdmi *hd = dev_get_drvdata(dev); + + mutex_lock(&hd->lock); + hd->audio_abort_cb = NULL; + mutex_unlock(&hd->lock); + + return 0; +} + +static int hdmi_audio_start(struct device *dev) +{ + struct omap_hdmi *hd = dev_get_drvdata(dev); + + WARN_ON(!hdmi_mode_has_audio(&hd->cfg)); + WARN_ON(!hd->display_enabled); + + hdmi_wp_audio_enable(&hd->wp, true); + hdmi_wp_audio_core_req_enable(&hd->wp, true); + + return 0; +} + +static void hdmi_audio_stop(struct device *dev) +{ + struct omap_hdmi *hd = dev_get_drvdata(dev); + + WARN_ON(!hdmi_mode_has_audio(&hd->cfg)); + WARN_ON(!hd->display_enabled); + + hdmi_wp_audio_core_req_enable(&hd->wp, false); + hdmi_wp_audio_enable(&hd->wp, false); +} + +static int hdmi_audio_config(struct device *dev, + struct omap_dss_audio *dss_audio) +{ + struct omap_hdmi *hd = dev_get_drvdata(dev); + int ret; + + mutex_lock(&hd->lock); + + if (!hdmi_mode_has_audio(&hd->cfg) || !hd->display_enabled) { + ret = -EPERM; + goto out; + } + + ret = hdmi5_audio_config(&hd->core, &hd->wp, dss_audio, + hd->cfg.timings.pixelclock); + +out: + mutex_unlock(&hd->lock); + + return ret; +} + +static const struct omap_hdmi_audio_ops hdmi_audio_ops = { + .audio_startup = hdmi_audio_startup, + .audio_shutdown = hdmi_audio_shutdown, + .audio_start = hdmi_audio_start, + .audio_stop = hdmi_audio_stop, + .audio_config = hdmi_audio_config, +}; + +static int hdmi_audio_register(struct device *dev) +{ + struct omap_hdmi_audio_pdata pdata = { + .dev = dev, + .dss_version = omapdss_get_version(), + .audio_dma_addr = hdmi_wp_get_audio_dma_addr(&hdmi.wp), + .ops = &hdmi_audio_ops, + }; + + hdmi.audio_pdev = platform_device_register_data( + dev, "omap-hdmi-audio", PLATFORM_DEVID_AUTO, + &pdata, sizeof(pdata)); + + if (IS_ERR(hdmi.audio_pdev)) + return PTR_ERR(hdmi.audio_pdev); + + return 0; +} + /* HDMI HW IP initialisation */ static int omapdss_hdmihw_probe(struct platform_device *pdev) { @@ -611,6 +725,14 @@ static int omapdss_hdmihw_probe(struct platform_device *pdev) hdmi_init_output(pdev); + r = hdmi_audio_register(&pdev->dev); + if (r) { + DSSERR("Registering HDMI audio failed %d\n", r); + hdmi_uninit_output(pdev); + pm_runtime_disable(&pdev->dev); + return r; + } + dss_debugfs_create_file("hdmi", hdmi_dump_regs); return 0; @@ -621,6 +743,9 @@ err: static int __exit omapdss_hdmihw_remove(struct platform_device *pdev) { + if (hdmi.audio_pdev) + platform_device_unregister(hdmi.audio_pdev); + hdmi_uninit_output(pdev); hdmi_pll_uninit(&hdmi.pll); |