From: Oswald Buddenhagen Date: Fri, 26 May 2023 10:16:58 +0000 (+0200) Subject: ALSA: emu10k1: make E-MU FPGA register dump in /proc more useful X-Git-Tag: v6.6.7~2394^2~16^2~34 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=6ab13291ba82e6f0c8778cb45726dffffb9205f5;p=platform%2Fkernel%2Flinux-starfive.git ALSA: emu10k1: make E-MU FPGA register dump in /proc more useful Include the routing information, which can be actually read back. Somewhat as a drive-by, make the register dump format less obscure - the previous one made no sense at all. Signed-off-by: Oswald Buddenhagen Link: https://lore.kernel.org/r/20230526101659.437969-6-oswald.buddenhagen@gmx.de Signed-off-by: Takashi Iwai --- diff --git a/include/sound/emu10k1.h b/include/sound/emu10k1.h index 164a237..4b9dda4 100644 --- a/include/sound/emu10k1.h +++ b/include/sound/emu10k1.h @@ -1812,6 +1812,7 @@ int snd_emu10k1_i2c_write(struct snd_emu10k1 *emu, u32 reg, u32 value); void snd_emu1010_fpga_write(struct snd_emu10k1 *emu, u32 reg, u32 value); void snd_emu1010_fpga_read(struct snd_emu10k1 *emu, u32 reg, u32 *value); void snd_emu1010_fpga_link_dst_src_write(struct snd_emu10k1 *emu, u32 dst, u32 src); +u32 snd_emu1010_fpga_link_dst_src_read(struct snd_emu10k1 *emu, u32 dst); unsigned int snd_emu10k1_efx_read(struct snd_emu10k1 *emu, unsigned int pc); void snd_emu10k1_intr_enable(struct snd_emu10k1 *emu, unsigned int intrenb); void snd_emu10k1_intr_disable(struct snd_emu10k1 *emu, unsigned int intrenb); diff --git a/sound/pci/emu10k1/emuproc.c b/sound/pci/emu10k1/emuproc.c index f1e7084..0d376d6 100644 --- a/sound/pci/emu10k1/emuproc.c +++ b/sound/pci/emu10k1/emuproc.c @@ -496,6 +496,15 @@ static void snd_emu10k1_proc_voices_read(struct snd_info_entry *entry, } #ifdef CONFIG_SND_DEBUG + +static void snd_emu_proc_emu1010_link_read(struct snd_emu10k1 *emu, + struct snd_info_buffer *buffer, + u32 dst) +{ + u32 src = snd_emu1010_fpga_link_dst_src_read(emu, dst); + snd_iprintf(buffer, "%04x: %04x\n", dst, src); +} + static void snd_emu_proc_emu1010_reg_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) { @@ -506,7 +515,39 @@ static void snd_emu_proc_emu1010_reg_read(struct snd_info_entry *entry, for(i = 0; i < 0x40; i+=1) { snd_emu1010_fpga_read(emu, i, &value); - snd_iprintf(buffer, "%02X: %08X, %02X\n", i, value, (value >> 8) & 0x7f); + snd_iprintf(buffer, "%02x: %02x\n", i, value); + } + + snd_iprintf(buffer, "\nEMU1010 Routes:\n\n"); + + for (i = 0; i < 16; i++) // To Alice2/Tina[2] via EMU32 + snd_emu_proc_emu1010_link_read(emu, buffer, i); + if (emu->card_capabilities->emu_model != EMU_MODEL_EMU0404) + for (i = 0; i < 32; i++) // To Dock via EDI + snd_emu_proc_emu1010_link_read(emu, buffer, 0x100 + i); + if (emu->card_capabilities->emu_model != EMU_MODEL_EMU1616) + for (i = 0; i < 8; i++) // To Hamoa/local + snd_emu_proc_emu1010_link_read(emu, buffer, 0x200 + i); + for (i = 0; i < 8; i++) // To Hamoa/Mana/local + snd_emu_proc_emu1010_link_read(emu, buffer, 0x300 + i); + if (emu->card_capabilities->emu_model == EMU_MODEL_EMU1616) { + for (i = 0; i < 16; i++) // To Tina2 via EMU32 + snd_emu_proc_emu1010_link_read(emu, buffer, 0x400 + i); + } else if (emu->card_capabilities->emu_model != EMU_MODEL_EMU0404) { + for (i = 0; i < 8; i++) // To Hana ADAT + snd_emu_proc_emu1010_link_read(emu, buffer, 0x400 + i); + if (emu->card_capabilities->emu_model == EMU_MODEL_EMU1010B) { + for (i = 0; i < 16; i++) // To Tina via EMU32 + snd_emu_proc_emu1010_link_read(emu, buffer, 0x500 + i); + } else { + // To Alice2 via I2S + snd_emu_proc_emu1010_link_read(emu, buffer, 0x500); + snd_emu_proc_emu1010_link_read(emu, buffer, 0x501); + snd_emu_proc_emu1010_link_read(emu, buffer, 0x600); + snd_emu_proc_emu1010_link_read(emu, buffer, 0x601); + snd_emu_proc_emu1010_link_read(emu, buffer, 0x700); + snd_emu_proc_emu1010_link_read(emu, buffer, 0x701); + } } } diff --git a/sound/pci/emu10k1/io.c b/sound/pci/emu10k1/io.c index 9a839e7..abe69ae 100644 --- a/sound/pci/emu10k1/io.c +++ b/sound/pci/emu10k1/io.c @@ -298,21 +298,27 @@ void snd_emu1010_fpga_write(struct snd_emu10k1 *emu, u32 reg, u32 value) spin_unlock_irqrestore(&emu->emu_lock, flags); } -void snd_emu1010_fpga_read(struct snd_emu10k1 *emu, u32 reg, u32 *value) +static void snd_emu1010_fpga_read_locked(struct snd_emu10k1 *emu, u32 reg, u32 *value) { // The higest input pin is used as the designated interrupt trigger, // so it needs to be masked out. u32 mask = emu->card_capabilities->ca0108_chip ? 0x1f : 0x7f; - unsigned long flags; if (snd_BUG_ON(reg > 0x3f)) return; reg += 0x40; /* 0x40 upwards are registers. */ - spin_lock_irqsave(&emu->emu_lock, flags); outw(reg, emu->port + A_GPIO); udelay(10); outw(reg | 0x80, emu->port + A_GPIO); /* High bit clocks the value into the fpga. */ udelay(10); *value = ((inw(emu->port + A_GPIO) >> 8) & mask); +} + +void snd_emu1010_fpga_read(struct snd_emu10k1 *emu, u32 reg, u32 *value) +{ + unsigned long flags; + + spin_lock_irqsave(&emu->emu_lock, flags); + snd_emu1010_fpga_read_locked(emu, reg, value); spin_unlock_irqrestore(&emu->emu_lock, flags); } @@ -335,6 +341,22 @@ void snd_emu1010_fpga_link_dst_src_write(struct snd_emu10k1 *emu, u32 dst, u32 s spin_unlock_irqrestore(&emu->emu_lock, flags); } +u32 snd_emu1010_fpga_link_dst_src_read(struct snd_emu10k1 *emu, u32 dst) +{ + unsigned long flags; + u32 hi, lo; + + if (snd_BUG_ON(dst & ~0x71f)) + return 0; + spin_lock_irqsave(&emu->emu_lock, flags); + snd_emu1010_fpga_write_locked(emu, EMU_HANA_DESTHI, dst >> 8); + snd_emu1010_fpga_write_locked(emu, EMU_HANA_DESTLO, dst & 0x1f); + snd_emu1010_fpga_read_locked(emu, EMU_HANA_SRCHI, &hi); + snd_emu1010_fpga_read_locked(emu, EMU_HANA_SRCLO, &lo); + spin_unlock_irqrestore(&emu->emu_lock, flags); + return (hi << 8) | lo; +} + void snd_emu10k1_intr_enable(struct snd_emu10k1 *emu, unsigned int intrenb) { unsigned long flags;