25 Jun
2018
25 Jun
'18
6:12 p.m.
Quoting Srinivas Kandagatla (2018-06-21 06:40:08)
new file mode 100644 index 000000000000..f8af9474d286 --- /dev/null +++ b/drivers/slimbus/stream.c @@ -0,0 +1,493 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (c) 2018, Linaro Limited
+#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/slab.h> +#include <linux/list.h> +#include <linux/slimbus.h> +#include "slimbus.h"
+/**
- struct segdist_code - Segment Distributions code from
Table 20 of SLIMbus Specs Version 2.0
- @ratem: Channel Rate Multipler(Segments per Superframe)
- @seg_interval: Number of slots between the first Slot of Segment
and the first slot of the next consecutive Segment.
- @segdist_code: Segment Distribution Code SD[11:0]
- @seg_offset_mask: Segment offset mask in SD[11:0]
- @segdist_codes: List of all possible Segmet Distribution codes.
- */
+static struct segdist_code {
const?
int ratem;int seg_interval;int segdist_code;u32 seg_offset_mask;+} segdist_codes[] = {
{1, 1536, 0x200, 0xdff},{2, 768, 0x100, 0xcff},{4, 384, 0x080, 0xc7f},{8, 192, 0x040, 0xc3f},{16, 96, 0x020, 0xc1f},{32, 48, 0x010, 0xc0f},{64, 24, 0x008, 0xc07},{128, 12, 0x004, 0xc03},{256, 6, 0x002, 0xc01},{512, 3, 0x001, 0xc00},{3, 512, 0xe00, 0x1ff},{6, 256, 0xd00, 0x0ff},{12, 128, 0xc80, 0x07f},{24, 64, 0xc40, 0x03f},{48, 32, 0xc20, 0x01f},{96, 16, 0xc10, 0x00f},{192, 8, 0xc08, 0x007},{364, 4, 0xc04, 0x003},{768, 2, 0xc02, 0x001},+};
+/**
- struct slim_presence_rate - Presense Rate table for all Natural Frequencies
The Presense rate of a constant bitrate stram is mean flow rate of the
stream expressed in occupied Segments of that Data Channel per second.
Table 66 from SLIMbus 2.0 Specs
- @rate: data rate
- @pr_code: presence rate code PR[6:0]
- @prate_table: All possible presence rate code for Natural Frequencies
- */
+static struct slim_presence_rate {
const?
int rate;int pr_code;+} prate_table[] = {