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usb: Place index timings in-band within the flux read stream.

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This removes the low limit on max index timings per read request.
This commit is contained in:
Keir Fraser
2020-10-21 10:29:51 +01:00
parent 81150b5117
commit 9b4b69da85
4 changed files with 59 additions and 47 deletions
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14
inc/cdc_acm_protocol.h
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@@ -41,9 +41,6 @@
#define CMD_WRITE_FLUX 8
/* CMD_GET_FLUX_STATUS, length=2. Last read/write status returned in ACK. */
#define CMD_GET_FLUX_STATUS 9
/* CMD_GET_INDEX_TIMES, length=4, first, nr.
* Returns nr*4 bytes after ACK. */
#define CMD_GET_INDEX_TIMES 10
/* CMD_SWITCH_FW_MODE, length=3, <mode> */
#define CMD_SWITCH_FW_MODE 11
/* CMD_SELECT, length=3, drive#. Select drive# as current unit. */
@@ -98,6 +95,13 @@
#define BAUD_CLEAR_COMMS 10000
/*
* Flux stream opcodes. Preceded by 0xFF byte.
*/
#define FLUXOP_LONGFLUX 1
#define FLUXOP_INDEX 2
/*
* COMMAND PACKETS
*/
@@ -107,7 +111,7 @@
struct packed gw_info {
uint8_t fw_major;
uint8_t fw_minor;
uint8_t max_index;
uint8_t is_main_firmware; /* == 0 -> update bootloader */
uint8_t max_cmd;
uint32_t sample_freq;
uint8_t hw_model, hw_submodel;
@@ -126,7 +130,7 @@ struct packed gw_bw_stats {
/* CMD_READ_FLUX */
struct packed gw_read_flux {
uint8_t nr_idx; /* default: 2 */
uint16_t nr_idx; /* default: 2 */
};
/* CMD_WRITE_FLUX */