/* * Copyright (C) ST-Ericsson AB 2010 * Author: Daniel Martensson / daniel.martensson@stericsson.com * Dmitry.Tarnyagin / dmitry.tarnyagin@stericsson.com * License terms: GNU General Public License (GPL) version 2 */ #ifndef CAIF_HSI_H_ #define CAIF_HSI_H_ #include #include #include /* * Maximum number of CAIF frames that can reside in the same HSI frame. */ #define CFHSI_MAX_PKTS 15 /* * Maximum number of bytes used for the frame that can be embedded in the * HSI descriptor. */ #define CFHSI_MAX_EMB_FRM_SZ 96 /* * Decides if HSI buffers should be prefilled with 0xFF pattern for easier * debugging. Both TX and RX buffers will be filled before the transfer. */ #define CFHSI_DBG_PREFILL 0 /* Structure describing a HSI packet descriptor. */ #pragma pack(1) /* Byte alignment. */ struct cfhsi_desc { u8 header; u8 offset; u16 cffrm_len[CFHSI_MAX_PKTS]; u8 emb_frm[CFHSI_MAX_EMB_FRM_SZ]; }; #pragma pack() /* Default alignment. */ /* Size of the complete HSI packet descriptor. */ #define CFHSI_DESC_SZ (sizeof(struct cfhsi_desc)) /* * Size of the complete HSI packet descriptor excluding the optional embedded * CAIF frame. */ #define CFHSI_DESC_SHORT_SZ (CFHSI_DESC_SZ - CFHSI_MAX_EMB_FRM_SZ) /* * Maximum bytes transferred in one transfer. */ #define CFHSI_MAX_CAIF_FRAME_SZ 4096 #define CFHSI_MAX_PAYLOAD_SZ (CFHSI_MAX_PKTS * CFHSI_MAX_CAIF_FRAME_SZ) /* Size of the complete HSI TX buffer. */ #define CFHSI_BUF_SZ_TX (CFHSI_DESC_SZ + CFHSI_MAX_PAYLOAD_SZ) /* Size of the complete HSI RX buffer. */ #define CFHSI_BUF_SZ_RX ((2 * CFHSI_DESC_SZ) + CFHSI_MAX_PAYLOAD_SZ) /* Bitmasks for the HSI descriptor. */ #define CFHSI_PIGGY_DESC (0x01 << 7) #define CFHSI_TX_STATE_IDLE 0 #define CFHSI_TX_STATE_XFER 1 #define CFHSI_RX_STATE_DESC 0 #define CFHSI_RX_STATE_PAYLOAD 1 /* Bitmasks for power management. */ #define CFHSI_WAKE_UP 0 #define CFHSI_WAKE_UP_ACK 1 #define CFHSI_WAKE_DOWN_ACK 2 #define CFHSI_AWAKE 3 #define CFHSI_WAKELOCK_HELD 4 #define CFHSI_SHUTDOWN 5 #define CFHSI_FLUSH_FIFO 6 #ifndef CFHSI_INACTIVITY_TOUT #define CFHSI_INACTIVITY_TOUT (1 * HZ) #endif /* CFHSI_INACTIVITY_TOUT */ #ifndef CFHSI_WAKE_TOUT #define CFHSI_WAKE_TOUT (3 * HZ) #endif /* CFHSI_WAKE_TOUT */ #ifndef CFHSI_MAX_RX_RETRIES #define CFHSI_MAX_RX_RETRIES (10 * HZ) #endif /* Structure implemented by the CAIF HSI driver. */ struct cfhsi_cb_ops { void (*tx_done_cb) (struct cfhsi_cb_ops *drv); void (*rx_done_cb) (struct cfhsi_cb_ops *drv); void (*wake_up_cb) (struct cfhsi_cb_ops *drv); void (*wake_down_cb) (struct cfhsi_cb_ops *drv); }; /* Structure implemented by HSI device. */ struct cfhsi_ops { int (*cfhsi_up) (struct cfhsi_ops *dev); int (*cfhsi_down) (struct cfhsi_ops *dev); int (*cfhsi_tx) (u8 *ptr, int len, struct cfhsi_ops *dev); int (*cfhsi_rx) (u8 *ptr, int len, struct cfhsi_ops *dev); int (*cfhsi_wake_up) (struct cfhsi_ops *dev); int (*cfhsi_wake_down) (struct cfhsi_ops *dev); int (*cfhsi_get_peer_wake) (struct cfhsi_ops *dev, bool *status); int (*cfhsi_fifo_occupancy) (struct cfhsi_ops *dev, size_t *occupancy); int (*cfhsi_rx_cancel)(struct cfhsi_ops *dev); struct cfhsi_cb_ops *cb_ops; }; /* Structure holds status of received CAIF frames processing */ struct cfhsi_rx_state { int state; int nfrms; int pld_len; int retries; bool piggy_desc; }; /* Priority mapping */ enum { CFHSI_PRIO_CTL = 0, CFHSI_PRIO_VI, CFHSI_PRIO_VO, CFHSI_PRIO_BEBK, CFHSI_PRIO_LAST, }; struct cfhsi_config { u32 inactivity_timeout; u32 aggregation_timeout; u32 head_align; u32 tail_align; u32 q_high_mark; u32 q_low_mark; }; /* Structure implemented by CAIF HSI drivers. */ struct cfhsi { struct caif_dev_common cfdev; struct net_device *ndev; struct platform_device *pdev; struct sk_buff_head qhead[CFHSI_PRIO_LAST]; struct cfhsi_cb_ops cb_ops; struct cfhsi_ops *ops; int tx_state; struct cfhsi_rx_state rx_state; struct cfhsi_config cfg; int rx_len; u8 *rx_ptr; u8 *tx_buf; u8 *rx_buf; u8 *rx_flip_buf; spinlock_t lock; int flow_off_sent; struct list_head list; struct work_struct wake_up_work; struct work_struct wake_down_work; struct work_struct out_of_sync_work; struct workqueue_struct *wq; wait_queue_head_t wake_up_wait; wait_queue_head_t wake_down_wait; wait_queue_head_t flush_fifo_wait; struct timer_list inactivity_timer; struct timer_list rx_slowpath_timer; /* TX aggregation */ int aggregation_len; struct timer_list aggregation_timer; unsigned long bits; }; extern struct platform_driver cfhsi_driver; /** * enum ifla_caif_hsi - CAIF HSI NetlinkRT parameters. * @IFLA_CAIF_HSI_INACTIVITY_TOUT: Inactivity timeout before * taking the HSI wakeline down, in milliseconds. * When using RT Netlink to create, destroy or configure a CAIF HSI interface, * enum ifla_caif_hsi is used to specify the configuration attributes. */ enum ifla_caif_hsi { __IFLA_CAIF_HSI_UNSPEC, __IFLA_CAIF_HSI_INACTIVITY_TOUT, __IFLA_CAIF_HSI_AGGREGATION_TOUT, __IFLA_CAIF_HSI_HEAD_ALIGN, __IFLA_CAIF_HSI_TAIL_ALIGN, __IFLA_CAIF_HSI_QHIGH_WATERMARK, __IFLA_CAIF_HSI_QLOW_WATERMARK, __IFLA_CAIF_HSI_MAX }; struct cfhsi_ops *cfhsi_get_ops(void); #endif /* CAIF_HSI_H_ */ /net-next.git/patch/sound/soc/davinci/davinci-mcasp.c?id=1b1bc42c1692e9b62756323c675a44cb1a1f9dbd'>patch) treed514a2d8512fc52c15747841e2368f8f99a50787 /sound/soc/davinci/davinci-mcasp.c parent3365135d43f861003555c963b309672d053a2228 (diff)parent950eabbd6ddedc1b08350b9169a6a51b130ebaaf (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller: 1) GTP fixes from Andreas Schultz (missing genl module alias, clear IP DF on transmit). 2) Netfilter needs to reflect the fwmark when sending resets, from Pau Espin Pedrol. 3) nftable dump OOPS fix from Liping Zhang. 4) Fix erroneous setting of VIRTIO_NET_HDR_F_DATA_VALID on transmit, from Rolf Neugebauer. 5) Fix build error of ipt_CLUSTERIP when procfs is disabled, from Arnd Bergmann. 6) Fix regression in handling of NETIF_F_SG in harmonize_features(), from Eric Dumazet. 7) Fix RTNL deadlock wrt. lwtunnel module loading, from David Ahern. 8) tcp_fastopen_create_child() needs to setup tp->max_window, from Alexey Kodanev. 9) Missing kmemdup() failure check in ipv6 segment routing code, from Eric Dumazet. 10) Don't execute unix_bind() under the bindlock, otherwise we deadlock with splice. From WANG Cong. 11) ip6_tnl_parse_tlv_enc_lim() potentially reallocates the skb buffer, therefore callers must reload cached header pointers into that skb. Fix from Eric Dumazet. 12) Fix various bugs in legacy IRQ fallback handling in alx driver, from Tobias Regnery. 13) Do not allow lwtunnel drivers to be unloaded while they are referenced by active instances, from Robert Shearman. 14) Fix truncated PHY LED trigger names, from Geert Uytterhoeven. 15) Fix a few regressions from virtio_net XDP support, from John Fastabend and Jakub Kicinski. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (102 commits) ISDN: eicon: silence misleading array-bounds warning net: phy: micrel: add support for KSZ8795 gtp: fix cross netns recv on gtp socket gtp: clear DF bit on GTP packet tx gtp: add genl family modules alias tcp: don't annotate mark on control socket from tcp_v6_send_response() ravb: unmap descriptors when freeing rings virtio_net: reject XDP programs using header adjustment virtio_net: use dev_kfree_skb for small buffer XDP receive r8152: check rx after napi is enabled r8152: re-schedule napi for tx r8152: avoid start_xmit to schedule napi when napi is disabled r8152: avoid start_xmit to call napi_schedule during autosuspend net: dsa: Bring back device detaching in dsa_slave_suspend() net: phy: leds: Fix truncated LED trigger names net: phy: leds: Break dependency of phy.h on phy_led_triggers.h net: phy: leds: Clear phy_num_led_triggers on failure to avoid crash net-next: ethernet: mediatek: change the compatible string Documentation: devicetree: change the mediatek ethernet compatible string bnxt_en: Fix RTNL lock usage on bnxt_get_port_module_status(). ...
Diffstat (limited to 'sound/soc/davinci/davinci-mcasp.c')