From 7d20f7b4f337ac075cf79f5047e68ea46189743f Mon Sep 17 00:00:00 2001 From: "Geoffrey D. Bennett" Date: Wed, 13 Mar 2024 05:05:15 +1030 Subject: [PATCH] ALSA: scarlett2: Add pbuf field to struct scarlett2_config scarlett2_usb_set_config() was using size = 0 as a signal to use the parameter buffer. Replace that with an explicit indication (pbuf = 1), as the upcoming Vocaster support has a config item written via the parameter buffer with size = 1 rather than the implicit size of 8. Signed-off-by: Geoffrey D. Bennett Signed-off-by: Takashi Iwai Message-ID: <50a7d85bb04f9a7f13f667c70a706826c8d3ef93.1710264833.git.g@b4.vu> --- sound/usb/mixer_scarlett2.c | 85 ++++++++++++++++++++----------------- 1 file changed, 46 insertions(+), 39 deletions(-) diff --git a/sound/usb/mixer_scarlett2.c b/sound/usb/mixer_scarlett2.c index 6031bfd98137..8d08f71bd4d6 100644 --- a/sound/usb/mixer_scarlett2.c +++ b/sound/usb/mixer_scarlett2.c @@ -436,11 +436,12 @@ enum { }; /* Location, size, and activation command number for the configuration - * parameters. Size is in bits and may be 0, 1, 8, or 16. + * parameters. Size is in bits and may be 1, 8, or 16. * - * A size of 0 indicates that the parameter is a byte-sized - * configuration which is set through the parameter buffer (but still - * read through the given offset location). + * Vocaster and 4th Gen devices have a parameter buffer to set certain + * configuration parameters. When pbuf is set, rather than writing to + * the given offset, the channel and value are written to the + * parameter buffer and the activate command is sent to the device. * * Some Gen 4 configuration parameters are written with 0x02 for a * desired value of 0x01, and 0x03 for 0x00. These are indicated with @@ -452,6 +453,7 @@ struct scarlett2_config { u16 offset; u8 size; u8 activate; + u8 pbuf; u8 mute; }; @@ -631,19 +633,21 @@ static const struct scarlett2_config_set scarlett2_config_set_gen4_solo = { .offset = 0x47, .size = 8, .activate = 4 }, [SCARLETT2_CONFIG_DIRECT_MONITOR] = { - .offset = 0x108, .activate = 12 }, + .offset = 0x108, .size = 8, .activate = 12, .pbuf = 1 }, [SCARLETT2_CONFIG_PHANTOM_SWITCH] = { - .offset = 0x46, .activate = 9, .mute = 1 }, + .offset = 0x46, .size = 8, .activate = 9, .pbuf = 1, + .mute = 1 }, [SCARLETT2_CONFIG_LEVEL_SWITCH] = { - .offset = 0x3d, .activate = 10, .mute = 1 }, + .offset = 0x3d, .size = 8, .activate = 10, .pbuf = 1, + .mute = 1 }, [SCARLETT2_CONFIG_AIR_SWITCH] = { - .offset = 0x3e, .activate = 11 }, + .offset = 0x3e, .size = 8, .activate = 11, .pbuf = 1 }, [SCARLETT2_CONFIG_PCM_INPUT_SWITCH] = { - .offset = 0x206, .activate = 25 }, + .offset = 0x206, .size = 8, .activate = 25, .pbuf = 1 }, [SCARLETT2_CONFIG_DIRECT_MONITOR_GAIN] = { .offset = 0x232, .size = 16, .activate = 26 } @@ -656,37 +660,39 @@ static const struct scarlett2_config_set scarlett2_config_set_gen4_2i2 = { .param_buf_addr = 0xfc, .items = { [SCARLETT2_CONFIG_MSD_SWITCH] = { - .offset = 0x49, .size = 8, .activate = 4 }, // 0x41 ?? + .offset = 0x49, .size = 8, .activate = 4 }, [SCARLETT2_CONFIG_DIRECT_MONITOR] = { - .offset = 0x14a, .activate = 16 }, + .offset = 0x14a, .size = 8, .activate = 16, .pbuf = 1 }, [SCARLETT2_CONFIG_AUTOGAIN_SWITCH] = { - .offset = 0x135, .activate = 10 }, + .offset = 0x135, .size = 8, .activate = 10, .pbuf = 1 }, [SCARLETT2_CONFIG_AUTOGAIN_STATUS] = { - .offset = 0x137 }, + .offset = 0x137, .size = 8 }, [SCARLETT2_CONFIG_PHANTOM_SWITCH] = { - .offset = 0x48, .activate = 11, .mute = 1 }, + .offset = 0x48, .size = 8, .activate = 11, .pbuf = 1, + .mute = 1 }, [SCARLETT2_CONFIG_INPUT_GAIN] = { - .offset = 0x4b, .activate = 12 }, + .offset = 0x4b, .size = 8, .activate = 12, .pbuf = 1 }, [SCARLETT2_CONFIG_LEVEL_SWITCH] = { - .offset = 0x3c, .activate = 13, .mute = 1 }, + .offset = 0x3c, .size = 8, .activate = 13, .pbuf = 1, + .mute = 1 }, [SCARLETT2_CONFIG_SAFE_SWITCH] = { - .offset = 0x147, .activate = 14 }, + .offset = 0x147, .size = 8, .activate = 14, .pbuf = 1 }, [SCARLETT2_CONFIG_AIR_SWITCH] = { - .offset = 0x3e, .activate = 15 }, + .offset = 0x3e, .size = 8, .activate = 15, .pbuf = 1 }, [SCARLETT2_CONFIG_INPUT_SELECT_SWITCH] = { - .offset = 0x14b, .activate = 17 }, + .offset = 0x14b, .size = 8, .activate = 17, .pbuf = 1 }, [SCARLETT2_CONFIG_INPUT_LINK_SWITCH] = { - .offset = 0x14e, .activate = 18 }, + .offset = 0x14e, .size = 8, .activate = 18, .pbuf = 1 }, [SCARLETT2_CONFIG_DIRECT_MONITOR_GAIN] = { .offset = 0x2a0, .size = 16, .activate = 36 } @@ -702,31 +708,33 @@ static const struct scarlett2_config_set scarlett2_config_set_gen4_4i4 = { .offset = 0x5c, .size = 8, .activate = 4 }, [SCARLETT2_CONFIG_AUTOGAIN_SWITCH] = { - .offset = 0x13e, .activate = 10 }, + .offset = 0x13e, .size = 8, .activate = 10, .pbuf = 1 }, [SCARLETT2_CONFIG_AUTOGAIN_STATUS] = { - .offset = 0x140 }, + .offset = 0x140, .size = 8 }, [SCARLETT2_CONFIG_PHANTOM_SWITCH] = { - .offset = 0x5a, .activate = 11, .mute = 1 }, + .offset = 0x5a, .size = 8, .activate = 11, .pbuf = 1, + .mute = 1 }, [SCARLETT2_CONFIG_INPUT_GAIN] = { - .offset = 0x5e, .activate = 12 }, + .offset = 0x5e, .size = 8, .activate = 12, .pbuf = 1 }, [SCARLETT2_CONFIG_LEVEL_SWITCH] = { - .offset = 0x4e, .activate = 13, .mute = 1 }, + .offset = 0x4e, .size = 8, .activate = 13, .pbuf = 1, + .mute = 1 }, [SCARLETT2_CONFIG_SAFE_SWITCH] = { - .offset = 0x150, .activate = 14 }, + .offset = 0x150, .size = 8, .activate = 14, .pbuf = 1 }, [SCARLETT2_CONFIG_AIR_SWITCH] = { - .offset = 0x50, .activate = 15 }, + .offset = 0x50, .size = 8, .activate = 15, .pbuf = 1 }, [SCARLETT2_CONFIG_INPUT_SELECT_SWITCH] = { - .offset = 0x153, .activate = 16 }, + .offset = 0x153, .size = 8, .activate = 16, .pbuf = 1 }, [SCARLETT2_CONFIG_INPUT_LINK_SWITCH] = { - .offset = 0x156, .activate = 17 }, + .offset = 0x156, .size = 8, .activate = 17, .pbuf = 1 }, [SCARLETT2_CONFIG_MASTER_VOLUME] = { .offset = 0x32, .size = 16 }, @@ -735,10 +743,10 @@ static const struct scarlett2_config_set scarlett2_config_set_gen4_4i4 = { .offset = 0x3a, .size = 16 }, [SCARLETT2_CONFIG_POWER_EXT] = { - .offset = 0x168 }, + .offset = 0x168, .size = 8 }, [SCARLETT2_CONFIG_POWER_LOW] = { - .offset = 0x16d } + .offset = 0x16d, .size = 8 } } }; @@ -2167,11 +2175,8 @@ static int scarlett2_usb_set_config( if (!config_item->offset) return -EFAULT; - /* Writes via the parameter buffer are selected with size = 0; - * these are only byte-sized values written through a shared - * location, different to the read address - */ - if (!config_item->size) { + /* Write via the parameter buffer? */ + if (config_item->pbuf) { if (!config_set->param_buf_addr) return -EFAULT; @@ -2187,7 +2192,7 @@ static int scarlett2_usb_set_config( if (err < 0) return err; - /* Request the interface do the write */ + /* Activate the write through the parameter buffer */ return scarlett2_usb_activate_config( mixer, config_item->activate); } @@ -2227,7 +2232,7 @@ static int scarlett2_usb_set_config( value = tmp; } - /* Send the configuration parameter data */ + /* Write the new value */ err = scarlett2_usb_set_data(mixer, offset, size, value); if (err < 0) return err; @@ -2237,7 +2242,9 @@ static int scarlett2_usb_set_config( if (err < 0) return err; - /* Writes via the parameter buffer don't need a separate save step */ + /* Interfaces with parameter buffer writes don't need a + * separate save step + */ if (config_set->param_buf_addr) return 0;