intel_audio_dump/bdw: dump audio DP and DIP FIFO debug status

Signed-off-by: Mengdong Lin <mengdong.lin@intel.com>
Reviewed-by: Xingchao Wang <xingchao.wang@intel.com>
Signed-off-by: Ben Widawsky <benjamin.widawsky@intel.com>

diff --git a/tools/intel_audio_dump.c b/tools/intel_audio_dump.c
index 3475caa..619734c 100644 (file)
--- a/tools/intel_audio_dump.c
+++ b/tools/intel_audio_dump.c
@@ -315,6 +315,28 @@ static const char * const en_mmio_program[] = {
        [1] = "Programming by MMIO debug registers",
 };
 
+static const char * const audio_dp_dip_status[] = {
+       [0] = "audfc dp fifo full",
+       [1] = "audfc dp fifo empty",
+       [2] = "audfc dp fifo overrun",
+       [3] = "audfc dip fifo full",
+       [4] = "audfc dp fifo empty cd",
+       [5] = "audfb dp fifo full",
+       [6] = "audfb dp fifo empty",
+       [7] = "audfb dp fifo overrun",
+       [8] = "audfb dip fifo full",
+       [9] = "audfb dp fifo empty cd",
+       [10] = "audfa dp fifo full",
+       [11] = "audfa dp fifo empty",
+       [12] = "audfa dp fifo overrun",
+       [13] = "audfa dip fifo full",
+       [14] = "audfa dp fifo empty cd",
+       [15] = "Pipe c audio overflow",
+       [16] = "Pipe b audio overflow",
+       [17] = "Pipe a audio overflow",
+       [31] = 0,
+};
+
 static void do_self_tests(void)
 {
        if (BIT(1, 0) != 1)
@@ -1632,6 +1654,7 @@ static void dump_cpt(void)
 #define AUD_IRII               0x65f04
 #define AUD_ICS                        0x65f08
 #define AUD_CHICKENBIT_REG     0x65f10
+#define AUD_DP_DIP_STATUS      0x65f20
 
 /* Video DIP Control */
 #define VIDEO_DIP_CTL_A                0x60200
@@ -2002,6 +2025,7 @@ static void parse_bdw_audio_chicken_bit_reg(uint32_t dword)
 static void dump_hsw_plus(void)
 {
        uint32_t dword;
+       int i;
 
        /* HSW DDI Buffer */
        dump_reg(DDI_BUF_CTL_A,         "DDI Buffer Controler A");
@@ -2076,6 +2100,7 @@ static void dump_hsw_plus(void)
        dump_reg(AUD_IRII,      "Audio Immediate Response Input Interface");
        dump_reg(AUD_ICS,       "Audio Immediate Command Status");
        dump_reg(AUD_CHICKENBIT_REG,    "Audio Chicken Bit Register");
+       dump_reg(AUD_DP_DIP_STATUS, "Audio DP and DIP FIFO Debug Status");
 
        printf("\nDetails:\n\n");
 
@@ -2151,6 +2176,12 @@ static void dump_hsw_plus(void)
        if (IS_BROADWELL(devid))
                parse_bdw_audio_chicken_bit_reg(dword);
 
+       dword = INREG(AUD_DP_DIP_STATUS);
+       printf("AUD_DP_DIP_STATUS Audio DP & DIP FIFO Status: %08x\n\t", dword);
+       for (i = 31; i >= 0; i--)
+               if (BIT(dword, i))
+                       printf("%s\n\t", audio_dp_dip_status[i]);
+       printf("\n");
 }
 
 int main(int argc, char **argv)