Messages in this thread | | | Subject | Re: [PATCH 1/2] slimbus: stream: add stream support | From | Srinivas Kandagatla <> | Date | Mon, 25 Jun 2018 17:15:07 +0100 |
| |
Thanks Stephen for review,
On 25/06/18 17:12, Stephen Boyd wrote: > 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? > Yep, Will fix this and presence rate in next version.!
>> + 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[] = {
| |