diff options
Diffstat (limited to 'include/linux/modem/shrm/shrm_private.h')
| -rw-r--r-- | include/linux/modem/shrm/shrm_private.h | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/include/linux/modem/shrm/shrm_private.h b/include/linux/modem/shrm/shrm_private.h new file mode 100644 index 00000000000..23caabf5a06 --- /dev/null +++ b/include/linux/modem/shrm/shrm_private.h @@ -0,0 +1,183 @@ +/* + * Copyright (C) ST-Ericsson SA 2010 + * + * Author: Biju Das <biju.das@stericsson.com> for ST-Ericsson + * Author: Kumar Sanghavi <kumar.sanghvi@stericsson.com> for ST-Ericsson + * Author: Arun Murthy <arun.murthy@stericsson.com> for ST-Ericsson + * License terms: GNU General Public License (GPL) version 2 + */ + +#ifndef __SHRM_PRIVATE_INCLUDED +#define __SHRM_PRIVATE_INCLUDED + +#include <linux/io.h> +#include <linux/ioport.h> +#include <linux/interrupt.h> +#include <linux/modem/shrm/shrm.h> + +#define GOP_OUTPUT_REGISTER_BASE (0x0) +#define GOP_SET_REGISTER_BASE (0x4) +#define GOP_CLEAR_REGISTER_BASE (0x8) +#define GOP_TOGGLE_REGISTER_BASE (0xc) + + +#define GOP_AUDIO_AC_READ_NOTIFICATION_BIT (0) +#define GOP_AUDIO_CA_MSG_PENDING_NOTIFICATION_BIT (1) +#define GOP_COMMON_AC_READ_NOTIFICATION_BIT (2) +#define GOP_COMMON_CA_MSG_PENDING_NOTIFICATION_BIT (3) +#define GOP_CA_WAKE_REQ_BIT (7) +#define GOP_AUDIO_CA_READ_NOTIFICATION_BIT (23) +#define GOP_AUDIO_AC_MSG_PENDING_NOTIFICATION_BIT (24) +#define GOP_COMMON_CA_READ_NOTIFICATION_BIT (25) +#define GOP_COMMON_AC_MSG_PENDING_NOTIFICATION_BIT (26) +#define GOP_CA_WAKE_ACK_BIT (27) + +#define L2_MSG_MAPID_OFFSET (24) +#define L1_MSG_MAPID_OFFSET (28) + +#define SHRM_SLEEP_STATE (0) +#define SHRM_PTR_FREE (1) +#define SHRM_PTR_BUSY (2) +#define SHRM_IDLE (3) + +#define ISI_MESSAGING (0) +#define RPC_MESSAGING (1) +#define AUDIO_MESSAGING (2) +#define SECURITY_MESSAGING (3) +#define COMMON_LOOPBACK_MESSAGING (0xC0) +#define AUDIO_LOOPBACK_MESSAGING (0x80) +#define CIQ_MESSAGING (0xC3) +#define RTC_CAL_MESSAGING (0xC8) + +#define COMMON_CHANNEL 0 +#define AUDIO_CHANNEL 1 + +typedef void (*MSG_PENDING_NOTIF)(const u32 Wptr); + +/** + * struct fifo_write_params - parameters used for FIFO write operation. + * @writer_local_rptr: pointer to local read buffer + * @writer_local_wptr: pointer to local write buffer + * @shared_wptr: write pointer shared by cmt and ape + * @shared_rptr: read pointer shared by cmt and ape + * @availablesize: available memory in fifo + * @end_addr_fifo: fifo end addr + * @fifo_virtual_addr: fifo virtual addr + * @fifo_update_lock: spin lock to update fifo. + * + * On writting a message to FIFO the same has to be read by the modem before + * writing the next message to the FIFO. In oder to over come this a local + * write and read pointer is used for internal purpose. + */ +struct fifo_write_params { + u32 writer_local_rptr; + u32 writer_local_wptr; + u32 shared_wptr; + u32 shared_rptr; + u32 availablesize; + u32 end_addr_fifo; + u32 *fifo_virtual_addr; + spinlock_t fifo_update_lock; +} ; + +/** + * struct fifo_read_params - parameters used for FIFO read operation + * @reader_local_rptr: pointer to local read buffer + * @reader_local_wptr: pointer to local write buffer + * @shared_wptr: write pointer shared by cmt and ape + * @shared_rptr: read pointer shared by cmt and ape + * @availablesize: available memory in fifo + * @end_addr_fifo: fifo end add + * @fifo_virtual_addr: fifo virtual addr + */ +struct fifo_read_params{ + u32 reader_local_rptr; + u32 reader_local_wptr; + u32 shared_wptr; + u32 shared_rptr; + u32 availablesize; + u32 end_addr_fifo; + u32 *fifo_virtual_addr; + +} ; + +int shrm_protocol_init(struct shrm_dev *shrm, + received_msg_handler common_rx_handler, + received_msg_handler audio_rx_handler); +void shrm_protocol_deinit(struct shrm_dev *shrm); +void shm_fifo_init(struct shrm_dev *shrm); +int shm_write_msg_to_fifo(struct shrm_dev *shrm, u8 channel, + u8 l2header, void *addr, u32 length); +int shm_write_msg(struct shrm_dev *shrm, + u8 l2_header, void *addr, u32 length); + +u8 is_the_only_one_unread_message(struct shrm_dev *shrm, + u8 channel, u32 length); +u8 read_remaining_messages_common(void); +u8 read_remaining_messages_audio(void); +u8 read_one_l2msg_audio(struct shrm_dev *shrm, + u8 *p_l2_msg, u32 *p_len); +u8 read_one_l2msg_common(struct shrm_dev *shrm, + u8 *p_l2_msg, u32 *p_len); +void receive_messages_common(struct shrm_dev *shrm); +void receive_messages_audio(struct shrm_dev *shrm); + +void update_ac_common_local_rptr(struct shrm_dev *shrm); +void update_ac_audio_local_rptr(struct shrm_dev *shrm); +void update_ca_common_local_wptr(struct shrm_dev *shrm); +void update_ca_audio_local_wptr(struct shrm_dev *shrm); +void update_ac_common_shared_wptr(struct shrm_dev *shrm); +void update_ac_audio_shared_wptr(struct shrm_dev *shrm); +void update_ca_common_shared_rptr(struct shrm_dev *shrm); +void update_ca_audio_shared_rptr(struct shrm_dev *shrm); + + +void get_writer_pointers(u8 msg_type, u32 *WriterLocalRptr, \ + u32 *WriterLocalWptr, u32 *SharedWptr); +void get_reader_pointers(u8 msg_type, u32 *ReaderLocalRptr, \ + u32 *ReaderLocalWptr, u32 *SharedRptr); +u8 read_boot_info_req(struct shrm_dev *shrm, + u32 *pConfig, + u32 *pVersion); +void write_boot_info_resp(struct shrm_dev *shrm, u32 Config, + u32 Version); + +void send_ac_msg_pending_notification_0(struct shrm_dev *shrm); +void send_ac_msg_pending_notification_1(struct shrm_dev *shrm); +void ca_msg_read_notification_0(struct shrm_dev *shrm); +void ca_msg_read_notification_1(struct shrm_dev *shrm); + +void set_ca_msg_0_read_notif_send(u8 val); +u8 get_ca_msg_0_read_notif_send(void); +void set_ca_msg_1_read_notif_send(u8 val); +u8 get_ca_msg_1_read_notif_send(void); + +irqreturn_t ca_wake_irq_handler(int irq, void *ctrlr); +irqreturn_t ac_read_notif_0_irq_handler(int irq, void *ctrlr); +irqreturn_t ac_read_notif_1_irq_handler(int irq, void *ctrlr); +irqreturn_t ca_msg_pending_notif_0_irq_handler(int irq, void *ctrlr); +irqreturn_t ca_msg_pending_notif_1_irq_handler(int irq, void *ctrlr); + +void shm_ca_msgpending_0_tasklet(unsigned long); +void shm_ca_msgpending_1_tasklet(unsigned long); +void shm_ac_read_notif_0_tasklet(unsigned long); +void shm_ac_read_notif_1_tasklet(unsigned long); +void shm_ca_wake_req_tasklet(unsigned long); + +u8 get_boot_state(void); + +int get_ca_wake_req_state(void); + +/* shrm character interface */ +int isa_init(struct shrm_dev *shrm); +void isa_exit(struct shrm_dev *shrm); +int add_msg_to_queue(struct message_queue *q, u32 size); +ssize_t isa_read(struct file *filp, char __user *buf, size_t len, + loff_t *ppos); +int get_size_of_new_msg(struct message_queue *q); +int remove_msg_from_queue(struct message_queue *q); +void shrm_char_reset_queues(struct shrm_dev *shrm); +int shrm_get_cdev_index(u8 l2_header); +int shrm_get_cdev_l2header(u8 idx); + +#endif |