/**************************************************************************** Copyright Echo Digital Audio Corporation (c) 1998 - 2004 All rights reserved www.echoaudio.com This file is part of Echo Digital Audio's generic driver library. Echo Digital Audio's generic driver library is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ************************************************************************* Translation from C++ and adaptation for use in ALSA-Driver were made by Giuliano Pochini ****************************************************************************/ static int read_dsp(struct echoaudio *chip, u32 *data); static int set_professional_spdif(struct echoaudio *chip, char prof); static int load_asic_generic(struct echoaudio *chip, u32 cmd, short asic); static int check_asic_status(struct echoaudio *chip); static int update_flags(struct echoaudio *chip); static int init_hw(struct echoaudio *chip, u16 device_id, u16 subdevice_id) { int err; if (snd_BUG_ON((subdevice_id & 0xfff0) != LAYLA20)) return -ENODEV; if ((err = init_dsp_comm_page(chip))) { dev_err(chip->card->dev, "init_hw - could not initialize DSP comm page\n"); return err; } chip->device_id = device_id; chip->subdevice_id = subdevice_id; chip->bad_board = true; chip->has_midi = true; chip->dsp_code_to_load = FW_LAYLA20_DSP; chip->input_clock_types = ECHO_CLOCK_BIT_INTERNAL | ECHO_CLOCK_BIT_SPDIF | ECHO_CLOCK_BIT_WORD | ECHO_CLOCK_BIT_SUPER; chip->output_clock_types = ECHO_CLOCK_BIT_WORD | ECHO_CLOCK_BIT_SUPER; if ((err = load_firmware(chip)) < 0) return err; chip->bad_board = false; return err; } static int set_mixer_defaults(struct echoaudio *chip) { chip->professional_spdif = false; return init_line_levels(chip); } static u32 detect_input_clocks(const struct echoaudio *chip) { u32 clocks_from_dsp, clock_bits; /* Map the DSP clock detect bits to the generic driver clock detect bits */ clocks_from_dsp = le32_to_cpu(chip->comm_page->status_clocks); clock_bits = ECHO_CLOCK_BIT_INTERNAL; if (clocks_from_dsp & GLDM_CLOCK_DETECT_BIT_SPDIF) clock_bits |= ECHO_CLOCK_BIT_SPDIF; if (clocks_from_dsp & GLDM_CLOCK_DETECT_BIT_WORD) { if (clocks_from_dsp & GLDM_CLOCK_DETECT_BIT_SUPER) clock_bits |= ECHO_CLOCK_BIT_SUPER; else clock_bits |= ECHO_CLOCK_BIT_WORD; } return clock_bits; } /* ASIC status check - some cards have one or two ASICs that need to be loaded. Once that load is complete, this function is called to see if the load was successful. If this load fails, it does not necessarily mean that the hardware is defective - the external box may be disconnected or turned off. This routine sometimes fails for Layla20; for Layla20, the loop runs 5 times and succeeds if it wins on three of the loops. */ static int check_asic_status(struct echoaudio *chip) { u32 asic_status; int goodcnt, i; chip->asic_loaded = false; for (i = goodcnt = 0; i < 5; i++) { send_vector(chip, DSP_VC_TEST_ASIC); /* The DSP will return a value to indicate whether or not the ASIC is currently loaded */ if (read_dsp(chip, &asic_status) < 0) { dev_err(chip->card->dev, "check_asic_status: failed on read_dsp\n"); return -EIO; } if (asic_status == ASIC_ALREADY_LOADED) { if (++goodcnt == 3) { chip->asic_loaded = true; return 0; } } } return -EIO; } /* Layla20 has an ASIC in the external box */ static int load_asic(struct echoaudio *chip) { int err; if (chip->asic_loaded) return 0; err = load_asic_generic(chip, DSP_FNC_LOAD_LAYLA_ASIC, FW_LAYLA20_ASIC); if (err < 0) return err; /* Check if ASIC is alive and well. */ return check_asic_status(chip); } static int set_sample_rate(struct echoaudio *chip, u32 rate) { if (snd_BUG_ON(rate < 8000 || rate > 50000)) return -EINVAL; /* Only set the clock for internal mode. Do not return failure, simply treat it as a non-event. */ if (chip->input_clock != ECHO_CLOCK_INTERNAL) { dev_warn(chip->card->dev, "Cannot set sample rate - clock not set to CLK_CLOCKININTERNAL\n"); chip->comm_page->sample_rate = cpu_to_le32(rate); chip->sample_rate = rate; return 0; } if (wait_handshake(chip)) return -EIO; dev_dbg(chip->card->dev, "set_sample_rate(%d)\n", rate); chip->sample_rate = rate; chip->comm_page->sample_rate = cpu_to_le32(rate); clear_handshake(chip); return send_vector(chip, DSP_VC_SET_LAYLA_SAMPLE_RATE); } static int set_input_clock(struct echoaudio *chip, u16 clock_source) { u16 clock; u32 rate; rate = 0; switch (clock_source) { case ECHO_CLOCK_INTERNAL: rate = chip->sample_rate; clock = LAYLA20_CLOCK_INTERNAL; break; case ECHO_CLOCK_SPDIF: clock = LAYLA20_CLOCK_SPDIF; break; case ECHO_CLOCK_WORD: clock = LAYLA20_CLOCK_WORD; break; case ECHO_CLOCK_SUPER: clock = LAYLA20_CLOCK_SUPER; break; default: dev_err(chip->card->dev, "Input clock 0x%x not supported for Layla24\n", clock_source); return -EINVAL; } chip->input_clock = clock_source; chip->comm_page->input_clock = cpu_to_le16(clock); clear_handshake(chip); send_vector(chip, DSP_VC_UPDATE_CLOCKS); if (rate) set_sample_rate(chip, rate); return 0; } static int set_output_clock(struct echoaudio *chip, u16 clock) { switch (clock) { case ECHO_CLOCK_SUPER: clock = LAYLA20_OUTPUT_CLOCK_SUPER; break; case ECHO_CLOCK_WORD: clock = LAYLA20_OUTPUT_CLOCK_WORD; break; default: dev_err(chip->card->dev, "set_output_clock wrong clock\n"); return -EINVAL; } if (wait_handshake(chip)) return -EIO; chip->comm_page->output_clock = cpu_to_le16(clock); chip->output_clock = clock; clear_handshake(chip); return send_vector(chip, DSP_VC_UPDATE_CLOCKS); } /* Set input bus gain (one unit is 0.5dB !) */ static int set_input_gain(struct echoaudio *chip, u16 input, int gain) { if (snd_BUG_ON(input >= num_busses_in(chip))) return -EINVAL; if (wait_handshake(chip)) return -EIO; chip->input_gain[input] = gain; gain += GL20_INPUT_GAIN_MAGIC_NUMBER; chip->comm_page->line_in_level[input] = gain; return 0; } /* Tell the DSP to reread the flags from the comm page */ static int update_flags(struct echoaudio *chip) { if (wait_handshake(chip)) return -EIO; clear_handshake(chip); return send_vector(chip, DSP_VC_UPDATE_FLAGS); } static int set_professional_spdif(struct echoaudio *chip, char prof) { if (prof) chip->comm_page->flags |= cpu_to_le32(DSP_FLAG_PROFESSIONAL_SPDIF); else chip->comm_page->flags &= ~cpu_to_le32(DSP_FLAG_PROFESSIONAL_SPDIF); chip->professional_spdif = prof; return update_flags(chip); } om David Miller: 1) Fix handling of interrupt status in stmmac driver. Just because we have masked the event from generating interrupts, doesn't mean the bit won't still be set in the interrupt status register. From Alexey Brodkin. 2) Fix DMA API debugging splats in gianfar driver, from Arseny Solokha. 3) Fix off-by-one error in __ip6_append_data(), from Vlad Yasevich. 4) cls_flow does not match on icmpv6 codes properly, from Simon Horman. 5) Initial MAC address can be set incorrectly in some scenerios, from Ivan Vecera. 6) Packet header pointer arithmetic fix in ip6_tnl_parse_tlv_end_lim(), from Dan Carpenter. 7) Fix divide by zero in __tcp_select_window(), from Eric Dumazet. 8) Fix crash in iwlwifi when unregistering thermal zone, from Jens Axboe. 9) Check for DMA mapping errors in starfire driver, from Alexey Khoroshilov. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (31 commits) tcp: fix 0 divide in __tcp_select_window() ipv6: pointer math error in ip6_tnl_parse_tlv_enc_lim() net: fix ndo_features_check/ndo_fix_features comment ordering net/sched: matchall: Fix configuration race be2net: fix initial MAC setting ipv6: fix flow labels when the traffic class is non-0 net: thunderx: avoid dereferencing xcv when NULL net/sched: cls_flower: Correct matching on ICMPv6 code ipv6: Paritially checksum full MTU frames net/mlx4_core: Avoid command timeouts during VF driver device shutdown gianfar: synchronize DMA API usage by free_skb_rx_queue w/ gfar_new_page net: ethtool: add support for 2500BaseT and 5000BaseT link modes can: bcm: fix hrtimer/tasklet termination in bcm op removal net: adaptec: starfire: add checks for dma mapping errors net: phy: micrel: KSZ8795 do not set SUPPORTED_[Asym_]Pause can: Fix kernel panic at security_sock_rcv_skb net: macb: Fix 64 bit addressing support for GEM stmmac: Discard masked flags in interrupt status register net/mlx5e: Check ets capability before ets query FW command net/mlx5e: Fix update of hash function/key via ethtool ...
Diffstat (limited to 'drivers/usb/misc/usbsevseg.c')