greybus: Initial I2S definitions

These are definitions from Mark that I've consolidated into
one header file. I'd like to get these merged at some point
soon, so the audio driver and gbsim work can avoid having
out-of-tree dependencies.

Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Reviewed-by: Alex Elder <elder@linaro.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

diff --git a/drivers/staging/greybus/greybus_manifest.h b/drivers/staging/greybus/greybus_manifest.h
index 4b2cf92..9ab1c82 100644 (file)
--- a/drivers/staging/greybus/greybus_manifest.h
+++ b/drivers/staging/greybus/greybus_manifest.h
@@ -35,7 +35,7 @@ enum greybus_protocol {
        GREYBUS_PROTOCOL_SDIO           = 0x07,
        GREYBUS_PROTOCOL_BATTERY        = 0x08,
        GREYBUS_PROTOCOL_PWM            = 0x09,
-       GREYBUS_PROTOCOL_I2S            = 0x0a,
+       GREYBUS_PROTOCOL_I2S_MGMT       = 0x0a,
        GREYBUS_PROTOCOL_SPI            = 0x0b,
        GREYBUS_PROTOCOL_DISPLAY        = 0x0c,
        GREYBUS_PROTOCOL_CAMERA         = 0x0d,
@@ -43,6 +43,8 @@ enum greybus_protocol {
        GREYBUS_PROTOCOL_LED            = 0x0f,
        GREYBUS_PROTOCOL_VIBRATOR       = 0x10,
        GREYBUS_PROTOCOL_LOOPBACK       = 0x11,
+       GREYBUS_PROTOCOL_I2S_RECEIVER   = 0x12,
+       GREYBUS_PROTOCOL_I2S_TRANSMITTER = 0x13,
                /* ... */
        GREYBUS_PROTOCOL_VENDOR         = 0xff,
 };

diff --git a/drivers/staging/greybus/i2s.h b/drivers/staging/greybus/i2s.h
new file mode 100644 (file)
index 0000000..5c42756
--- /dev/null
+++ b/drivers/staging/greybus/i2s.h
@@ -0,0 +1,145 @@
+#ifndef __GB_I2S_H__
+#define __GB_I2S_H__
+
+#ifndef BIT
+#define BIT(n) (1UL << (n))
+#endif
+
+#define GB_I2S_MGMT_TYPE_PROTOCOL_VERSION              0x01
+#define GB_I2S_MGMT_TYPE_GET_SUPPORTED_CONFIGURATIONS  0x02
+#define GB_I2S_MGMT_TYPE_SET_CONFIGURATION             0x03
+#define GB_I2S_MGMT_TYPE_SET_SAMPLES_PER_MESSAGE       0x04
+#define GB_I2S_MGMT_TYPE_GET_PROCESSING_DELAY          0x05
+#define GB_I2S_MGMT_TYPE_SET_START_DELAY               0x06
+#define GB_I2S_MGMT_TYPE_ACTIVATE_CPORT                        0x07
+#define GB_I2S_MGMT_TYPE_DEACTIVATE_CPORT              0x08
+#define GB_I2S_MGMT_TYPE_REPORT_EVENT                  0x09
+
+#define GB_I2S_MGMT_BYTE_ORDER_NA                      BIT(0)
+#define GB_I2S_MGMT_BYTE_ORDER_BE                      BIT(1)
+#define GB_I2S_MGMT_BYTE_ORDER_LE                      BIT(2)
+
+#define GB_I2S_MGMT_SPATIAL_LOCATION_FL                        BIT(0)
+#define GB_I2S_MGMT_SPATIAL_LOCATION_FR                        BIT(1)
+#define GB_I2S_MGMT_SPATIAL_LOCATION_FC                        BIT(2)
+#define GB_I2S_MGMT_SPATIAL_LOCATION_LFE               BIT(3)
+#define GB_I2S_MGMT_SPATIAL_LOCATION_BL                        BIT(4)
+#define GB_I2S_MGMT_SPATIAL_LOCATION_BR                        BIT(5)
+#define GB_I2S_MGMT_SPATIAL_LOCATION_FLC               BIT(6)
+#define GB_I2S_MGMT_SPATIAL_LOCATION_FRC               BIT(7)
+#define GB_I2S_MGMT_SPATIAL_LOCATION_C                 BIT(8) /* BC in USB */
+#define GB_I2S_MGMT_SPATIAL_LOCATION_SL                        BIT(9)
+#define GB_I2S_MGMT_SPATIAL_LOCATION_SR                        BIT(10)
+#define GB_I2S_MGMT_SPATIAL_LOCATION_TC                        BIT(11)
+#define GB_I2S_MGMT_SPATIAL_LOCATION_TFL               BIT(12)
+#define GB_I2S_MGMT_SPATIAL_LOCATION_TFC               BIT(13)
+#define GB_I2S_MGMT_SPATIAL_LOCATION_TFR               BIT(14)
+#define GB_I2S_MGMT_SPATIAL_LOCATION_TBL               BIT(15)
+#define GB_I2S_MGMT_SPATIAL_LOCATION_TBC               BIT(16)
+#define GB_I2S_MGMT_SPATIAL_LOCATION_TBR               BIT(17)
+#define GB_I2S_MGMT_SPATIAL_LOCATION_TFLC              BIT(18)
+#define GB_I2S_MGMT_SPATIAL_LOCATION_TFRC              BIT(19)
+#define GB_I2S_MGMT_SPATIAL_LOCATION_LLFE              BIT(20)
+#define GB_I2S_MGMT_SPATIAL_LOCATION_RLFE              BIT(21)
+#define GB_I2S_MGMT_SPATIAL_LOCATION_TSL               BIT(22)
+#define GB_I2S_MGMT_SPATIAL_LOCATION_TSR               BIT(23)
+#define GB_I2S_MGMT_SPATIAL_LOCATION_BC                        BIT(24)
+#define GB_I2S_MGMT_SPATIAL_LOCATION_BLC               BIT(25)
+#define GB_I2S_MGMT_SPATIAL_LOCATION_BRC               BIT(26)
+#define GB_I2S_MGMT_SPATIAL_LOCATION_RD                        BIT(31)
+
+#define GB_I2S_MGMT_PROTOCOL_PCM                       BIT(0)
+#define GB_I2S_MGMT_PROTOCOL_I2S                       BIT(1)
+#define GB_I2S_MGMT_PROTOCOL_LR_STEREO                 BIT(2)
+
+#define GB_I2S_MGMT_ROLE_MASTER                                BIT(0)
+#define GB_I2S_MGMT_ROLE_SLAVE                         BIT(1)
+
+#define GB_I2S_MGMT_POLARITY_NORMAL                    BIT(0)
+#define GB_I2S_MGMT_POLARITY_REVERSED                  BIT(1)
+
+#define GB_I2S_MGMT_EDGE_RISING                                BIT(0)
+#define GB_I2S_MGMT_EDGE_FALLING                       BIT(1)
+
+#define GB_I2S_MGMT_EVENT_UNSPECIFIED                  0x1
+#define GB_I2S_MGMT_EVENT_HALT                         0x2
+#define GB_I2S_MGMT_EVENT_INTERNAL_ERROR               0x3
+#define GB_I2S_MGMT_EVENT_PROTOCOL_ERROR               0x4
+#define GB_I2S_MGMT_EVENT_FAILURE                      0x5
+#define GB_I2S_MGMT_EVENT_OUT_OF_SEQUENCE              0x6
+#define GB_I2S_MGMT_EVENT_UNDERRUN                     0x7
+#define GB_I2S_MGMT_EVENT_OVERRUN                      0x8
+#define GB_I2S_MGMT_EVENT_CLOCKING                     0x9
+#define GB_I2S_MGMT_EVENT_DATA_LEN                     0xa
+
+struct gb_i2s_mgmt_configuration {
+       __le32  sample_frequency;
+       __u8    num_channels;
+       __u8    bytes_per_channel;
+       __u8    byte_order;
+       __u8    pad;
+       __le32  spatial_locations;
+       __le32  ll_protocol;
+       __u8    ll_bclk_role;
+       __u8    ll_wclk_role;
+       __u8    ll_wclk_polarity;
+       __u8    ll_wclk_change_edge;
+       __u8    ll_wclk_tx_edge;
+       __u8    ll_wclk_rx_edge;
+       __u8    ll_data_offset;
+       __u8    ll_pad;
+};
+
+/* get supported configurations request has no payload */
+struct gb_i2s_mgmt_get_supported_configurations_response {
+       __u8                                    config_count;
+       __u8                                    pad[3];
+       struct gb_i2s_mgmt_configuration        config[0];
+};
+
+struct gb_i2s_mgmt_set_configuration_request {
+       struct gb_i2s_mgmt_configuration        config;
+};
+/* set configuration response has no payload */
+
+struct gb_i2s_mgmt_set_samples_per_message_request {
+       __le16  samples_per_message;
+};
+/* set samples per message response has no payload */
+
+/* get processing request delay has no payload */
+struct gb_i2s_mgmt_get_processing_delay_response {
+       __le32  microseconds;
+};
+
+struct gb_i2s_mgmt_set_start_delay_request {
+       __le32  microseconds;
+};
+/* set start delay response has no payload */
+
+struct gb_i2s_mgmt_activate_cport_request {
+       __le16  cport;
+};
+/* activate cport response has no payload */
+
+struct gb_i2s_mgmt_deactivate_cport_request {
+       __le16  cport;
+};
+/* deactivate cport response has no payload */
+
+struct gb_i2s_mgmt_report_event_request {
+       __u8    event;
+};
+/* report event response has no payload */
+
+#define GB_I2S_DATA_TYPE_PROTOCOL_VERSION              0x01
+#define GB_I2S_DATA_TYPE_SEND_DATA                     0x02
+
+struct gb_i2s_send_data_request {
+       __le32  sample_number;
+       __le32  size;
+       __u8    data[0];
+};
+/* send data has no response at all */
+
+#endif /* __GB_I2S_H__ */