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dreamsourcelab-dslogic: Improved naming of variables in fpga_configure

This commit is contained in:
Joel Holdsworth 2017-09-17 19:45:29 -06:00 committed by Uwe Hermann
parent b7a3d79e46
commit 9f58023066
1 changed files with 14 additions and 16 deletions
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30
src/hardware/dreamsourcelab-dslogic/protocol.c
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@ -427,8 +427,8 @@ static int fpga_configure(const struct sr_dev_inst *sdi)
struct sr_usb_dev_inst *usb;
uint8_t c[3];
struct fpga_config cfg;
uint16_t v16;
uint32_t v32;
uint16_t mode = 0;
uint32_t divider;
int transferred, len, ret;
sr_dbg("Configuring FPGA.");
@ -461,26 +461,24 @@ static int fpga_configure(const struct sr_dev_inst *sdi)
return SR_ERR;
}
v16 = 0x0000;
if (devc->mode == DS_OP_INTERNAL_TEST)
v16 = DS_MODE_INT_TEST;
mode = DS_MODE_INT_TEST;
else if (devc->mode == DS_OP_EXTERNAL_TEST)
v16 = DS_MODE_EXT_TEST;
mode = DS_MODE_EXT_TEST;
else if (devc->mode == DS_OP_LOOPBACK_TEST)
v16 = DS_MODE_LPB_TEST;
mode = DS_MODE_LPB_TEST;
if (devc->cur_samplerate == DS_MAX_LOGIC_SAMPLERATE * 2)
v16 |= DS_MODE_HALF_MODE;
mode |= DS_MODE_HALF_MODE;
else if (devc->cur_samplerate == DS_MAX_LOGIC_SAMPLERATE * 4)
v16 |= DS_MODE_QUAR_MODE;
mode |= DS_MODE_QUAR_MODE;
if (devc->continuous_mode)
v16 |= DS_MODE_STREAM_MODE;
mode |= DS_MODE_STREAM_MODE;
if (devc->external_clock) {
v16 |= DS_MODE_CLK_TYPE;
mode |= DS_MODE_CLK_TYPE;
if (devc->clock_edge == DS_EDGE_FALLING)
v16 |= DS_MODE_CLK_EDGE;
mode |= DS_MODE_CLK_EDGE;
}
if (devc->limit_samples > DS_MAX_LOGIC_DEPTH *
ceil(devc->cur_samplerate * 1.0 / DS_MAX_LOGIC_SAMPLERATE)
@ -488,12 +486,12 @@ static int fpga_configure(const struct sr_dev_inst *sdi)
/* Enable RLE for long captures.
* Without this, captured data present errors.
*/
v16 |= DS_MODE_RLE_MODE;
mode |= DS_MODE_RLE_MODE;
}
WL16(&cfg.mode, v16);
v32 = ceil(DS_MAX_LOGIC_SAMPLERATE * 1.0 / devc->cur_samplerate);
WL32(&cfg.divider, v32);
WL16(&cfg.mode, mode);
divider = ceil(DS_MAX_LOGIC_SAMPLERATE * 1.0 / devc->cur_samplerate);
WL32(&cfg.divider, divider);
/* Number of 16-sample units. */
WL32(&cfg.count, devc->limit_samples / 16);