b1eec53ff4
* Porting BeagleBone to Kernel 5.10 * Fixing issue with installation for BeagleBone. This fix resolve 2 issue: 1. Conflict with AVR packages. 2. "klipper_pru" script is executed before PRU cores are ready * Adding additional steps to BeagleBone install guide. * Updating BeagleBone documentation, adding different use cases, adding buses configurations SPI, I2C, CAN, UART Signed-off-by: Oleg Gavavka <work@datalink.net.ua>
92 lines
2.9 KiB
C
92 lines
2.9 KiB
C
/****************************************************************
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* Resource table
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****************************************************************/
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#ifndef _RESOURCE_TABLE_H_
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#define _RESOURCE_TABLE_H_
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#include <stddef.h>
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#include "pru_virtio_ids.h"
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/*
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* Sizes of the virtqueues (expressed in number of buffers supported,
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* and must be power of 2)
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*/
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#define PRU_RPMSG_VQ0_SIZE 16
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#define PRU_RPMSG_VQ1_SIZE 16
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/*
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* The feature bitmap for virtio rpmsg
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*/
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#define VIRTIO_RPMSG_F_NS 0 //name service notifications
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/* This firmware supports name service notifications as one of its features */
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#define RPMSG_PRU_C0_FEATURES (1 << VIRTIO_RPMSG_F_NS)
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/* Definition for unused interrupts */
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#define HOST_UNUSED 255
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struct my_resource_table {
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struct resource_table base;
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uint32_t offset[1]; /* Should match 'num' in actual definition */
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/* rpmsg vdev entry */
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struct fw_rsc_vdev rpmsg_vdev;
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struct fw_rsc_vdev_vring rpmsg_vring0;
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struct fw_rsc_vdev_vring rpmsg_vring1;
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};
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#if !defined(__GNUC__)
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#pragma DATA_SECTION(resourceTable, ".resource_table")
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#pragma RETAIN(resourceTable)
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#define __resource_table /* */
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#else
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#define __resource_table __attribute__((section(".resource_table")))
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#endif
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struct my_resource_table resourceTable __resource_table = {
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{
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1, /* Resource table version: only version 1 is
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* supported by the current driver */
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1, /* number of entries in the table */
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{0, 0}, /* reserved, must be zero */
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},
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/* offsets to entries */
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{
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offsetof(struct my_resource_table, rpmsg_vdev),
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},
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/* rpmsg vdev entry */
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{
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(uint32_t)TYPE_VDEV, //type
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(uint32_t)VIRTIO_ID_RPMSG, //id
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(uint32_t)0, //notifyid
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(uint32_t)RPMSG_PRU_C0_FEATURES,//dfeatures
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(uint32_t)0, //gfeatures
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(uint32_t)0, //config_len
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(uint8_t)0, //status
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(uint8_t)2, //num_of_vrings, only two is supported
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{(uint8_t)0, (uint8_t)0 }, //reserved
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/* no config data */
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},
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/* the two vrings */
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{
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FW_RSC_ADDR_ANY, //da, will be populated by host, can't pass it in
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16, //align (bytes),
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PRU_RPMSG_VQ0_SIZE, //num of descriptors
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0, //notifyid, will be populated, can't pass right now
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0 //reserved
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},
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{
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FW_RSC_ADDR_ANY, //da, will be populated by host, can't pass it in
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16, //align (bytes),
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PRU_RPMSG_VQ1_SIZE, //num of descriptors
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0, //notifyid, will be populated, can't pass right now
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0 //reserved
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},
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};
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#endif /* _RESOURCE_TABLE_H_ */
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