/* * ALSA driver for ICEnsemble ICE1712 (Envy24) * * AK4524 / AK4528 / AK4529 / AK4355 / AK4381 interface * * Copyright (c) 2000 Jaroslav Kysela * * This program 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; either version 2 of the License, or * (at your option) any later version. * * 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 * */ #include #include #include #include #include #include #include #include #include "ice1712.h" MODULE_AUTHOR("Jaroslav Kysela "); MODULE_DESCRIPTION("ICEnsemble ICE17xx <-> AK4xxx AD/DA chip interface"); MODULE_LICENSE("GPL"); static void snd_ice1712_akm4xxx_lock(struct snd_akm4xxx *ak, int chip) { struct snd_ice1712 *ice = ak->private_data[0]; snd_ice1712_save_gpio_status(ice); } static void snd_ice1712_akm4xxx_unlock(struct snd_akm4xxx *ak, int chip) { struct snd_ice1712 *ice = ak->private_data[0]; snd_ice1712_restore_gpio_status(ice); } /* * write AK4xxx register */ static void snd_ice1712_akm4xxx_write(struct snd_akm4xxx *ak, int chip, unsigned char addr, unsigned char data) { unsigned int tmp; int idx; unsigned int addrdata; struct snd_ak4xxx_private *priv = (void *)ak->private_value[0]; struct snd_ice1712 *ice = ak->private_data[0]; if (snd_BUG_ON(chip < 0 || chip >= 4)) return; tmp = snd_ice1712_gpio_read(ice); tmp |= priv->add_flags; tmp &= ~priv->mask_flags; if (priv->cs_mask == priv->cs_addr) { if (priv->cif) { tmp |= priv->cs_mask; /* start without chip select */ } else { tmp &= ~priv->cs_mask; /* chip select low */ snd_ice1712_gpio_write(ice, tmp); udelay(1); } } else { /* doesn't handle cf=1 yet */ tmp &= ~priv->cs_mask; tmp |= priv->cs_addr; snd_ice1712_gpio_write(ice, tmp); udelay(1); } /* build I2C address + data byte */ addrdata = (priv->caddr << 6) | 0x20 | (addr & 0x1f); addrdata = (addrdata << 8) | data; for (idx = 15; idx >= 0; idx--) { /* drop clock */ tmp &= ~priv->clk_mask; snd_ice1712_gpio_write(ice, tmp); udelay(1); /* set data */ if (addrdata & (1 << idx)) tmp |= priv->data_mask; else tmp &= ~priv->data_mask; snd_ice1712_gpio_write(ice, tmp); udelay(1); /* raise clock */ tmp |= priv->clk_mask; snd_ice1712_gpio_write(ice, tmp); udelay(1); } if (priv->cs_mask == priv->cs_addr) { if (priv->cif) { /* assert a cs pulse to trigger */ tmp &= ~priv->cs_mask; snd_ice1712_gpio_write(ice, tmp); udelay(1); } tmp |= priv->cs_mask; /* chip select high to trigger */ } else { tmp &= ~priv->cs_mask; tmp |= priv->cs_none; /* deselect address */ } snd_ice1712_gpio_write(ice, tmp); udelay(1); } /* * initialize the struct snd_akm4xxx record with the template */ int snd_ice1712_akm4xxx_init(struct snd_akm4xxx *ak, const struct snd_akm4xxx *temp, const struct snd_ak4xxx_private *_priv, struct snd_ice1712 *ice) { struct snd_ak4xxx_private *priv; if (_priv != NULL) { priv = kmalloc(sizeof(*priv), GFP_KERNEL); if (priv == NULL) return -ENOMEM; *priv = *_priv; } else { priv = NULL; } *ak = *temp; ak->card = ice->card; ak->private_value[0] = (unsigned long)priv; ak->private_data[0] = ice; if (ak->ops.lock == NULL) ak->ops.lock = snd_ice1712_akm4xxx_lock; if (ak->ops.unlock == NULL) ak->ops.unlock = snd_ice1712_akm4xxx_unlock; if (ak->ops.write == NULL) ak->ops.write = snd_ice1712_akm4xxx_write; snd_akm4xxx_init(ak); return 0; } void snd_ice1712_akm4xxx_free(struct snd_ice1712 *ice) { unsigned int akidx; if (ice->akm == NULL) return; for (akidx = 0; akidx < ice->akm_codecs; akidx++) { struct snd_akm4xxx *ak = &ice->akm[akidx]; kfree((void*)ak->private_value[0]); } kfree(ice->akm); } /* * build AK4xxx controls */ int snd_ice1712_akm4xxx_build_controls(struct snd_ice1712 *ice) { unsigned int akidx; int err; for (akidx = 0; akidx < ice->akm_codecs; akidx++) { struct snd_akm4xxx *ak = &ice->akm[akidx]; err = snd_akm4xxx_build_controls(ak); if (err < 0) return err; } return 0; } static int __init alsa_ice1712_akm4xxx_module_init(void) { return 0; } static void __exit alsa_ice1712_akm4xxx_module_exit(void) { } module_init(alsa_ice1712_akm4xxx_module_init) module_exit(alsa_ice1712_akm4xxx_module_exit) EXPORT_SYMBOL(snd_ice1712_akm4xxx_init); EXPORT_SYMBOL(snd_ice1712_akm4xxx_free); EXPORT_SYMBOL(snd_ice1712_akm4xxx_build_controls); ts.h?id=6d04dfc8966019b8b0977b2cb942351f13d2b178'>6d04dfc8966019b8b0977b2cb942351f13d2b178 (patch) tree2d4f239c1daff620704b77a992c1e70ce1ce6b08 /drivers/usb/chipidea/bits.h parent2883aaea363f7a897ff06d2e6c73ae7aae285bcb (diff)parent06425c308b92eaf60767bc71d359f4cbc7a561f8 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from 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/chipidea/bits.h')