From 79f0cbcc9a4287d966fd7fb259b3cb4f54f99913 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Mon, 27 Apr 2015 13:00:09 +0200 Subject: ALSA: emu10k1: Fix card shortname string buffer overflow [ Upstream commit d02260824e2cad626fb2a9d62e27006d34b6dedc ] Some models provide too long string for the shortname that has 32bytes including the terminator, and it results in a non-terminated string exposed to the user-space. This isn't too critical, though, as the string is stopped at the succeeding longname string. This patch fixes such entries by dropping "SB" prefix (it's enough to fit within 32 bytes, so far). Meanwhile, it also changes strcpy() with strlcpy() to make sure that this kind of problem won't happen in future, too. Cc: Signed-off-by: Takashi Iwai Signed-off-by: Sasha Levin --- sound/pci/emu10k1/emu10k1_main.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'sound/pci/emu10k1/emu10k1_main.c') diff --git a/sound/pci/emu10k1/emu10k1_main.c b/sound/pci/emu10k1/emu10k1_main.c index 229269788023..8204bf4f0f14 100644 --- a/sound/pci/emu10k1/emu10k1_main.c +++ b/sound/pci/emu10k1/emu10k1_main.c @@ -1424,7 +1424,7 @@ static struct snd_emu_chip_details emu_chip_details[] = { * */ {.vendor = 0x1102, .device = 0x0008, .subsystem = 0x20011102, - .driver = "Audigy2", .name = "SB Audigy 2 ZS Notebook [SB0530]", + .driver = "Audigy2", .name = "Audigy 2 ZS Notebook [SB0530]", .id = "Audigy2", .emu10k2_chip = 1, .ca0108_chip = 1, @@ -1574,7 +1574,7 @@ static struct snd_emu_chip_details emu_chip_details[] = { .adc_1361t = 1, /* 24 bit capture instead of 16bit */ .ac97_chip = 1} , {.vendor = 0x1102, .device = 0x0004, .subsystem = 0x10051102, - .driver = "Audigy2", .name = "SB Audigy 2 Platinum EX [SB0280]", + .driver = "Audigy2", .name = "Audigy 2 Platinum EX [SB0280]", .id = "Audigy2", .emu10k2_chip = 1, .ca0102_chip = 1, -- cgit v1.2.3 From ea4b18887e1f454aa650952f3033a38e777d0891 Mon Sep 17 00:00:00 2001 From: Peter Zubaj Date: Tue, 28 Apr 2015 21:57:29 +0200 Subject: ALSA: emu10k1: Emu10k2 32 bit DMA mode [ Upstream commit 7241ea558c6715501e777396b5fc312c372e11d9 ] Looks like audigy emu10k2 (probably emu10k1 - sb live too) support two modes for DMA. Second mode is useful for 64 bit os with more then 2 GB of ram (fixes problems with big soundfont loading) 1) 32MB from 2 GB address space using 8192 pages (used now as default) 2) 16MB from 4 GB address space using 4096 pages Mode is set using HCFG_EXPANDED_MEM flag in HCFG register. Also format of emu10k2 page table is then different. Signed-off-by: Peter Zubaj Tested-by: Takashi Iwai Cc: Signed-off-by: Takashi Iwai Signed-off-by: Sasha Levin --- sound/pci/emu10k1/emu10k1_main.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) (limited to 'sound/pci/emu10k1/emu10k1_main.c') diff --git a/sound/pci/emu10k1/emu10k1_main.c b/sound/pci/emu10k1/emu10k1_main.c index 8204bf4f0f14..92f2371791a3 100644 --- a/sound/pci/emu10k1/emu10k1_main.c +++ b/sound/pci/emu10k1/emu10k1_main.c @@ -282,7 +282,7 @@ static int snd_emu10k1_init(struct snd_emu10k1 *emu, int enable_ir, int resume) snd_emu10k1_ptr_write(emu, TCB, 0, 0); /* taken from original driver */ snd_emu10k1_ptr_write(emu, TCBS, 0, 4); /* taken from original driver */ - silent_page = (emu->silent_page.addr << 1) | MAP_PTI_MASK; + silent_page = (emu->silent_page.addr << emu->address_mode) | (emu->address_mode ? MAP_PTI_MASK1 : MAP_PTI_MASK0); for (ch = 0; ch < NUM_G; ch++) { snd_emu10k1_ptr_write(emu, MAPA, ch, silent_page); snd_emu10k1_ptr_write(emu, MAPB, ch, silent_page); @@ -348,6 +348,11 @@ static int snd_emu10k1_init(struct snd_emu10k1 *emu, int enable_ir, int resume) outl(reg | A_IOCFG_GPOUT0, emu->port + A_IOCFG); } + if (emu->address_mode == 0) { + /* use 16M in 4G */ + outl(inl(emu->port + HCFG) | HCFG_EXPANDED_MEM, emu->port + HCFG); + } + return 0; } @@ -1880,8 +1885,10 @@ int snd_emu10k1_create(struct snd_card *card, is_audigy = emu->audigy = c->emu10k2_chip; + /* set addressing mode */ + emu->address_mode = is_audigy ? 0 : 1; /* set the DMA transfer mask */ - emu->dma_mask = is_audigy ? AUDIGY_DMA_MASK : EMU10K1_DMA_MASK; + emu->dma_mask = emu->address_mode ? EMU10K1_DMA_MASK : AUDIGY_DMA_MASK; if (pci_set_dma_mask(pci, emu->dma_mask) < 0 || pci_set_consistent_dma_mask(pci, emu->dma_mask) < 0) { dev_err(card->dev, @@ -1906,7 +1913,7 @@ int snd_emu10k1_create(struct snd_card *card, emu->max_cache_pages = max_cache_bytes >> PAGE_SHIFT; if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci), - 32 * 1024, &emu->ptb_pages) < 0) { + (emu->address_mode ? 32 : 16) * 1024, &emu->ptb_pages) < 0) { err = -ENOMEM; goto error; } @@ -2005,8 +2012,8 @@ int snd_emu10k1_create(struct snd_card *card, /* Clear silent pages and set up pointers */ memset(emu->silent_page.area, 0, PAGE_SIZE); - silent_page = emu->silent_page.addr << 1; - for (idx = 0; idx < MAXPAGES; idx++) + silent_page = emu->silent_page.addr << emu->address_mode; + for (idx = 0; idx < (emu->address_mode ? MAXPAGES1 : MAXPAGES0); idx++) ((u32 *)emu->ptb_pages.area)[idx] = cpu_to_le32(silent_page | idx); /* set up voice indices */ -- cgit v1.2.3