diff options
Diffstat (limited to 'sound/pci/hda/hda_eld.c')
| -rw-r--r-- | sound/pci/hda/hda_eld.c | 52 |
1 files changed, 27 insertions, 25 deletions
diff --git a/sound/pci/hda/hda_eld.c b/sound/pci/hda/hda_eld.c index 4c054f4486b9..7dd846380a50 100644 --- a/sound/pci/hda/hda_eld.c +++ b/sound/pci/hda/hda_eld.c @@ -246,8 +246,8 @@ static void hdmi_update_short_audio_desc(struct cea_sad *a, /* * Be careful, ELD buf could be totally rubbish! */ -static int hdmi_update_eld(struct hdmi_eld *e, - const unsigned char *buf, int size) +int snd_hdmi_parse_eld(struct parsed_hdmi_eld *e, + const unsigned char *buf, int size) { int mnl; int i; @@ -260,7 +260,6 @@ static int hdmi_update_eld(struct hdmi_eld *e, goto out_fail; } - e->eld_size = size; e->baseline_len = GRAB_BITS(buf, 2, 0, 8); mnl = GRAB_BITS(buf, 4, 0, 5); e->cea_edid_ver = GRAB_BITS(buf, 4, 5, 3); @@ -305,7 +304,6 @@ static int hdmi_update_eld(struct hdmi_eld *e, if (!e->spk_alloc) e->spk_alloc = 0xffff; - e->eld_valid = true; return 0; out_fail: @@ -318,17 +316,16 @@ int snd_hdmi_get_eld_size(struct hda_codec *codec, hda_nid_t nid) AC_DIPSIZE_ELD_BUF); } -int snd_hdmi_get_eld(struct hdmi_eld *eld, - struct hda_codec *codec, hda_nid_t nid) +int snd_hdmi_get_eld(struct hda_codec *codec, hda_nid_t nid, + unsigned char *buf, int *eld_size) { int i; int ret; int size; - unsigned char *buf; /* * ELD size is initialized to zero in caller function. If no errors and - * ELD is valid, actual eld_size is assigned in hdmi_update_eld() + * ELD is valid, actual eld_size is assigned. */ size = snd_hdmi_get_eld_size(codec, nid); @@ -343,8 +340,6 @@ int snd_hdmi_get_eld(struct hdmi_eld *eld, } /* set ELD buffer */ - buf = eld->eld_buffer; - for (i = 0; i < size; i++) { unsigned int val = hdmi_get_eld_data(codec, nid, i); /* @@ -372,8 +367,7 @@ int snd_hdmi_get_eld(struct hdmi_eld *eld, buf[i] = val; } - ret = hdmi_update_eld(eld, buf, size); - + *eld_size = size; error: return ret; } @@ -438,7 +432,7 @@ void snd_print_channel_allocation(int spk_alloc, char *buf, int buflen) buf[j] = '\0'; /* necessary when j == 0 */ } -void snd_hdmi_show_eld(struct hdmi_eld *e) +void snd_hdmi_show_eld(struct parsed_hdmi_eld *e) { int i; @@ -487,10 +481,11 @@ static void hdmi_print_sad_info(int i, struct cea_sad *a, static void hdmi_print_eld_info(struct snd_info_entry *entry, struct snd_info_buffer *buffer) { - struct hdmi_eld *e = entry->private_data; + struct hdmi_eld *eld = entry->private_data; + struct parsed_hdmi_eld *e = &eld->info; char buf[SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE]; int i; - static char *eld_versoin_names[32] = { + static char *eld_version_names[32] = { "reserved", "reserved", "CEA-861D or below", @@ -505,15 +500,18 @@ static void hdmi_print_eld_info(struct snd_info_entry *entry, [4 ... 7] = "reserved" }; - snd_iprintf(buffer, "monitor_present\t\t%d\n", e->monitor_present); - snd_iprintf(buffer, "eld_valid\t\t%d\n", e->eld_valid); - if (!e->eld_valid) + mutex_lock(&eld->lock); + snd_iprintf(buffer, "monitor_present\t\t%d\n", eld->monitor_present); + snd_iprintf(buffer, "eld_valid\t\t%d\n", eld->eld_valid); + if (!eld->eld_valid) { + mutex_unlock(&eld->lock); return; + } snd_iprintf(buffer, "monitor_name\t\t%s\n", e->monitor_name); snd_iprintf(buffer, "connection_type\t\t%s\n", eld_connection_type_names[e->conn_type]); snd_iprintf(buffer, "eld_version\t\t[0x%x] %s\n", e->eld_ver, - eld_versoin_names[e->eld_ver]); + eld_version_names[e->eld_ver]); snd_iprintf(buffer, "edid_version\t\t[0x%x] %s\n", e->cea_edid_ver, cea_edid_version_names[e->cea_edid_ver]); snd_iprintf(buffer, "manufacture_id\t\t0x%x\n", e->manufacture_id); @@ -530,18 +528,21 @@ static void hdmi_print_eld_info(struct snd_info_entry *entry, for (i = 0; i < e->sad_count; i++) hdmi_print_sad_info(i, e->sad + i, buffer); + mutex_unlock(&eld->lock); } static void hdmi_write_eld_info(struct snd_info_entry *entry, struct snd_info_buffer *buffer) { - struct hdmi_eld *e = entry->private_data; + struct hdmi_eld *eld = entry->private_data; + struct parsed_hdmi_eld *e = &eld->info; char line[64]; char name[64]; char *sname; long long val; unsigned int n; + mutex_lock(&eld->lock); while (!snd_info_get_line(buffer, line, sizeof(line))) { if (sscanf(line, "%s %llx", name, &val) != 2) continue; @@ -551,9 +552,9 @@ static void hdmi_write_eld_info(struct snd_info_entry *entry, * eld_version edid_version */ if (!strcmp(name, "monitor_present")) - e->monitor_present = val; + eld->monitor_present = val; else if (!strcmp(name, "eld_valid")) - e->eld_valid = val; + eld->eld_valid = val; else if (!strcmp(name, "connection_type")) e->conn_type = val; else if (!strcmp(name, "port_id")) @@ -593,6 +594,7 @@ static void hdmi_write_eld_info(struct snd_info_entry *entry, e->sad_count = n + 1; } } + mutex_unlock(&eld->lock); } @@ -627,7 +629,7 @@ void snd_hda_eld_proc_free(struct hda_codec *codec, struct hdmi_eld *eld) #endif /* CONFIG_PROC_FS */ /* update PCM info based on ELD */ -void snd_hdmi_eld_update_pcm_info(struct hdmi_eld *eld, +void snd_hdmi_eld_update_pcm_info(struct parsed_hdmi_eld *e, struct hda_pcm_stream *hinfo) { u32 rates; @@ -644,8 +646,8 @@ void snd_hdmi_eld_update_pcm_info(struct hdmi_eld *eld, formats = SNDRV_PCM_FMTBIT_S16_LE; maxbps = 16; channels_max = 2; - for (i = 0; i < eld->sad_count; i++) { - struct cea_sad *a = &eld->sad[i]; + for (i = 0; i < e->sad_count; i++) { + struct cea_sad *a = &e->sad[i]; rates |= a->rates; if (a->channels > channels_max) channels_max = a->channels; |