Change in coreboot[master]: device/azalia: Add weak function for extra verbs

[Patrick Rudolph (Code Review)]

Patrick Rudolph has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/50382 )

Change subject: device/azalia: Add weak function for extra verbs
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device/azalia: Add weak function for extra verbs

Introduce a weak function to be overwritten by mainboard to provide
additional verbs for runtime based configuration.

The mainboard must implement azalia_extra_verb_table, check the viddid
and return a pointer to the buffer holding the additonal verbs.

To be used for runtime detection of present jacks on prodrive/hermes.

Change-Id: I983c62d26be68885bb2f5b3a85f989b9d6b77706
Signed-off-by: Patrick Rudolph 
---
M src/device/azalia_device.c
M src/include/device/azalia_device.h
2 files changed, 28 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/82/50382/1

diff --git a/src/device/azalia_device.c b/src/device/azalia_device.c
index e383821..999ac0e 100644
--- a/src/device/azalia_device.c
+++ b/src/device/azalia_device.c
@@ -188,10 +188,17 @@
    return -1;
 }

+__weak u32 *azalia_extra_verb_table(u32 viddid, u32 *verb_table_size)
+{
+	*verb_table_size = 0;
+	return NULL;
+}
+
 static void codec_init(struct device *dev, u8 *base, int addr)
 {
    u32 reg32;
    const u32 *verb;
+	u32 *extra_verbs;
    u32 verb_size;
    int i;

@@ -233,6 +240,22 @@
    		return;
    }
    printk(BIOS_DEBUG, "azalia_audio: verb loaded.\n");
+
+	verb_size = 0;
+	extra_verbs = azalia_extra_verb_table(reg32, &verb_size);
+	if (extra_verbs != NULL && verb_size != 0) {
+		printk(BIOS_DEBUG, "azalia_audio: extra_verb_size: %d\n", verb_size);
+		for (i = 0; i < verb_size; i++) {
+			if (wait_for_ready(base) < 0)
+				return;
+
+			write32(base + HDA_IC_REG, extra_verbs[i]);
+
+			if (wait_for_valid(base) < 0)
+				return;
+		}
+		printk(BIOS_DEBUG, "azalia_audio: extra verb loaded.\n");
+	}
 }

static void codecs_init(struct device *dev, u8 *base, u32 codec_mask)
diff --git a/src/include/device/azalia_device.h b/src/include/device/azalia_device.h
index 1b4e769..095f7c2 100644
--- a/src/include/device/azalia_device.h
+++ b/src/include/device/azalia_device.h
@@ -25,6 +25,11 @@
 void azalia_audio_init(struct device *dev);
 extern struct device_operations default_azalia_audio_ops;

+/*
+ * Allows a mainboard to specify additional verb configured at runtime.
+ */
+u32 *azalia_extra_verb_table(u32 viddid, u32 *verb_table_size);
+
 extern const u32 cim_verb_data[];
 extern const u32 cim_verb_data_size;
 extern const u32 pc_beep_verbs[];