244 lines
7.4 KiB
C
244 lines
7.4 KiB
C
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/* drivers/soc/qcom/smd_private.h
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*
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* Copyright (C) 2007 Google, Inc.
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* Copyright (c) 2007-2014, The Linux Foundation. All rights reserved.
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#ifndef _ARCH_ARM_MACH_MSM_MSM_SMD_PRIVATE_H_
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#define _ARCH_ARM_MACH_MSM_MSM_SMD_PRIVATE_H_
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#include <linux/types.h>
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#include <linux/spinlock.h>
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#include <linux/errno.h>
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#include <linux/remote_spinlock.h>
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#include <linux/platform_device.h>
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#include <linux/interrupt.h>
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#include <soc/qcom/smd.h>
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#include <soc/qcom/smsm.h>
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#define VERSION_QDSP6 4
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#define VERSION_APPS_SBL 6
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#define VERSION_MODEM_SBL 7
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#define VERSION_APPS 8
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#define VERSION_MODEM 9
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#define VERSION_DSPS 10
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#define ID_SMD_CHANNELS SMEM_SMD_BASE_ID
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#define ID_SHARED_STATE SMEM_SMSM_SHARED_STATE
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#define ID_CH_ALLOC_TBL SMEM_CHANNEL_ALLOC_TBL
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#define SMD_SS_CLOSED 0x00000000
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#define SMD_SS_OPENING 0x00000001
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#define SMD_SS_OPENED 0x00000002
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#define SMD_SS_FLUSHING 0x00000003
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#define SMD_SS_CLOSING 0x00000004
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#define SMD_SS_RESET 0x00000005
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#define SMD_SS_RESET_OPENING 0x00000006
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#define SMD_HEADER_SIZE 20
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/* 'type' field of smd_alloc_elm structure
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* has the following breakup
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* bits 0-7 -> channel type
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* bits 8-11 -> xfer type
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* bits 12-31 -> reserved
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*/
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struct smd_alloc_elm {
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char name[20];
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uint32_t cid;
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uint32_t type;
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uint32_t ref_count;
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};
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#define SMD_CHANNEL_TYPE(x) ((x) & 0x000000FF)
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#define SMD_XFER_TYPE(x) (((x) & 0x00000F00) >> 8)
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struct smd_half_channel {
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unsigned state;
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unsigned char fDSR;
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unsigned char fCTS;
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unsigned char fCD;
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unsigned char fRI;
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unsigned char fHEAD;
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unsigned char fTAIL;
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unsigned char fSTATE;
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unsigned char fBLOCKREADINTR;
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unsigned tail;
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unsigned head;
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};
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struct smd_half_channel_word_access {
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unsigned state;
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unsigned fDSR;
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unsigned fCTS;
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unsigned fCD;
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unsigned fRI;
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unsigned fHEAD;
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unsigned fTAIL;
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unsigned fSTATE;
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unsigned fBLOCKREADINTR;
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unsigned tail;
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unsigned head;
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};
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struct smd_half_channel_access {
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void (*set_state)(volatile void __iomem *half_channel, unsigned data);
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unsigned (*get_state)(volatile void __iomem *half_channel);
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void (*set_fDSR)(volatile void __iomem *half_channel,
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unsigned char data);
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unsigned (*get_fDSR)(volatile void __iomem *half_channel);
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void (*set_fCTS)(volatile void __iomem *half_channel,
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unsigned char data);
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unsigned (*get_fCTS)(volatile void __iomem *half_channel);
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void (*set_fCD)(volatile void __iomem *half_channel,
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unsigned char data);
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unsigned (*get_fCD)(volatile void __iomem *half_channel);
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void (*set_fRI)(volatile void __iomem *half_channel,
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unsigned char data);
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unsigned (*get_fRI)(volatile void __iomem *half_channel);
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void (*set_fHEAD)(volatile void __iomem *half_channel,
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unsigned char data);
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unsigned (*get_fHEAD)(volatile void __iomem *half_channel);
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void (*set_fTAIL)(volatile void __iomem *half_channel,
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unsigned char data);
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unsigned (*get_fTAIL)(volatile void __iomem *half_channel);
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void (*set_fSTATE)(volatile void __iomem *half_channel,
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unsigned char data);
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unsigned (*get_fSTATE)(volatile void __iomem *half_channel);
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void (*set_fBLOCKREADINTR)(volatile void __iomem *half_channel,
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unsigned char data);
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unsigned (*get_fBLOCKREADINTR)(volatile void __iomem *half_channel);
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void (*set_tail)(volatile void __iomem *half_channel, unsigned data);
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unsigned (*get_tail)(volatile void __iomem *half_channel);
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void (*set_head)(volatile void __iomem *half_channel, unsigned data);
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unsigned (*get_head)(volatile void __iomem *half_channel);
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};
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int is_word_access_ch(unsigned ch_type);
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struct smd_half_channel_access *get_half_ch_funcs(unsigned ch_type);
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struct smd_channel {
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volatile void __iomem *send; /* some variant of smd_half_channel */
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volatile void __iomem *recv; /* some variant of smd_half_channel */
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unsigned char *send_data;
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unsigned char *recv_data;
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unsigned fifo_size;
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struct list_head ch_list;
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unsigned current_packet;
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unsigned n;
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void *priv;
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void (*notify)(void *priv, unsigned flags);
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int (*read)(smd_channel_t *ch, void *data, int len);
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int (*write)(smd_channel_t *ch, const void *data, int len,
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bool int_ntfy);
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int (*read_avail)(smd_channel_t *ch);
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int (*write_avail)(smd_channel_t *ch);
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int (*read_from_cb)(smd_channel_t *ch, void *data, int len);
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void (*update_state)(smd_channel_t *ch);
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unsigned last_state;
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void (*notify_other_cpu)(smd_channel_t *ch);
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void * (*read_from_fifo)(void *dest, const void *src, size_t num_bytes);
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void * (*write_to_fifo)(void *dest, const void *src, size_t num_bytes);
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char name[20];
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struct platform_device pdev;
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unsigned type;
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int pending_pkt_sz;
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char is_pkt_ch;
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/*
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* private internal functions to access *send and *recv.
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* never to be exported outside of smd
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*/
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struct smd_half_channel_access *half_ch;
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};
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extern spinlock_t smem_lock;
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struct interrupt_stat {
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uint32_t smd_in_count;
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uint32_t smd_out_count;
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uint32_t smd_interrupt_id;
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uint32_t smsm_in_count;
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uint32_t smsm_out_count;
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uint32_t smsm_interrupt_id;
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};
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extern struct interrupt_stat interrupt_stats[NUM_SMD_SUBSYSTEMS];
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struct interrupt_config_item {
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/* must be initialized */
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irqreturn_t (*irq_handler)(int req, void *data);
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/* outgoing interrupt config (set from platform data) */
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uint32_t out_bit_pos;
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void __iomem *out_base;
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uint32_t out_offset;
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int irq_id;
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};
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enum {
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MSM_SMD_DEBUG = 1U << 0,
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MSM_SMSM_DEBUG = 1U << 1,
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MSM_SMD_INFO = 1U << 2,
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MSM_SMSM_INFO = 1U << 3,
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MSM_SMD_POWER_INFO = 1U << 4,
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MSM_SMSM_POWER_INFO = 1U << 5,
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};
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struct interrupt_config {
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struct interrupt_config_item smd;
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struct interrupt_config_item smsm;
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};
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struct edge_to_pid {
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uint32_t local_pid;
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uint32_t remote_pid;
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char subsys_name[SMD_MAX_CH_NAME_LEN];
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bool initialized;
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};
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extern void *smd_log_ctx;
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extern int msm_smd_debug_mask;
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extern irqreturn_t smd_modem_irq_handler(int irq, void *data);
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extern irqreturn_t smsm_modem_irq_handler(int irq, void *data);
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extern irqreturn_t smd_dsp_irq_handler(int irq, void *data);
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extern irqreturn_t smsm_dsp_irq_handler(int irq, void *data);
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extern irqreturn_t smd_dsps_irq_handler(int irq, void *data);
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extern irqreturn_t smsm_dsps_irq_handler(int irq, void *data);
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extern irqreturn_t smd_wcnss_irq_handler(int irq, void *data);
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extern irqreturn_t smsm_wcnss_irq_handler(int irq, void *data);
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extern irqreturn_t smd_rpm_irq_handler(int irq, void *data);
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extern irqreturn_t smd_modemfw_irq_handler(int irq, void *data);
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extern int msm_smd_driver_register(void);
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extern void smd_post_init(unsigned remote_pid);
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extern int smsm_post_init(void);
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extern struct interrupt_config *smd_get_intr_config(uint32_t edge);
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extern int smd_edge_to_remote_pid(uint32_t edge);
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extern int smd_edge_to_local_pid(uint32_t edge);
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extern void smd_set_edge_subsys_name(uint32_t edge, const char *subsys_name);
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extern void smd_reset_all_edge_subsys_name(void);
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extern void smd_proc_set_skip_pil(unsigned pid, bool skip_pil);
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extern void smd_set_edge_initialized(uint32_t edge);
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extern void smd_cfg_smd_intr(uint32_t proc, uint32_t mask, void *ptr);
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extern void smd_cfg_smsm_intr(uint32_t proc, uint32_t mask, void *ptr);
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#endif
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