mirror of https://gitee.com/openkylin/linux.git
V4L/DVB: af9013: optimize code size
Optimize af9013_set_coeff(). Move configuration values to own table. Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Antti Palosaari
Mauro Carvalho Chehab
parent
d3bb73de97
commit
9b22edd4b0
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@ -220,173 +220,50 @@ static u32 af913_div(u32 a, u32 b, u32 x)
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static int af9013_set_coeff(struct af9013_state *state, fe_bandwidth_t bw)
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{
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int ret = 0;
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u8 i = 0;
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int ret, i, found;
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u8 buf[24];
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u32 uninitialized_var(ns_coeff1_2048nu);
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u32 uninitialized_var(ns_coeff1_8191nu);
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u32 uninitialized_var(ns_coeff1_8192nu);
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u32 uninitialized_var(ns_coeff1_8193nu);
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u32 uninitialized_var(ns_coeff2_2k);
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u32 uninitialized_var(ns_coeff2_8k);
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deb_info("%s: adc_clock:%d bw:%d\n", __func__,
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state->config.adc_clock, bw);
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switch (state->config.adc_clock) {
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case 28800: /* 28.800 MHz */
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switch (bw) {
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case BANDWIDTH_6_MHZ:
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ns_coeff1_2048nu = 0x01e79e7a;
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ns_coeff1_8191nu = 0x0079eb6e;
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ns_coeff1_8192nu = 0x0079e79e;
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ns_coeff1_8193nu = 0x0079e3cf;
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ns_coeff2_2k = 0x00f3cf3d;
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ns_coeff2_8k = 0x003cf3cf;
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/* lookup coeff from table */
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for (i = 0, found = 0; i < ARRAY_SIZE(coeff_table); i++) {
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if (coeff_table[i].adc_clock == state->config.adc_clock &&
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coeff_table[i].bw == bw) {
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found = 1;
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break;
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case BANDWIDTH_7_MHZ:
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ns_coeff1_2048nu = 0x0238e38e;
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ns_coeff1_8191nu = 0x008e3d55;
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ns_coeff1_8192nu = 0x008e38e4;
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ns_coeff1_8193nu = 0x008e3472;
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ns_coeff2_2k = 0x011c71c7;
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ns_coeff2_8k = 0x00471c72;
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break;
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case BANDWIDTH_8_MHZ:
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ns_coeff1_2048nu = 0x028a28a3;
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ns_coeff1_8191nu = 0x00a28f3d;
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ns_coeff1_8192nu = 0x00a28a29;
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ns_coeff1_8193nu = 0x00a28514;
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ns_coeff2_2k = 0x01451451;
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ns_coeff2_8k = 0x00514514;
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break;
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default:
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ret = -EINVAL;
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}
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break;
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case 20480: /* 20.480 MHz */
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switch (bw) {
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case BANDWIDTH_6_MHZ:
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ns_coeff1_2048nu = 0x02adb6dc;
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ns_coeff1_8191nu = 0x00ab7313;
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ns_coeff1_8192nu = 0x00ab6db7;
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ns_coeff1_8193nu = 0x00ab685c;
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ns_coeff2_2k = 0x0156db6e;
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ns_coeff2_8k = 0x0055b6dc;
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break;
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case BANDWIDTH_7_MHZ:
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ns_coeff1_2048nu = 0x03200001;
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ns_coeff1_8191nu = 0x00c80640;
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ns_coeff1_8192nu = 0x00c80000;
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ns_coeff1_8193nu = 0x00c7f9c0;
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ns_coeff2_2k = 0x01900000;
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ns_coeff2_8k = 0x00640000;
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break;
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case BANDWIDTH_8_MHZ:
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ns_coeff1_2048nu = 0x03924926;
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ns_coeff1_8191nu = 0x00e4996e;
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ns_coeff1_8192nu = 0x00e49249;
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ns_coeff1_8193nu = 0x00e48b25;
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ns_coeff2_2k = 0x01c92493;
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ns_coeff2_8k = 0x00724925;
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break;
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default:
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ret = -EINVAL;
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}
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break;
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case 28000: /* 28.000 MHz */
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switch (bw) {
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case BANDWIDTH_6_MHZ:
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ns_coeff1_2048nu = 0x01f58d10;
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ns_coeff1_8191nu = 0x007d672f;
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ns_coeff1_8192nu = 0x007d6344;
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ns_coeff1_8193nu = 0x007d5f59;
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ns_coeff2_2k = 0x00fac688;
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ns_coeff2_8k = 0x003eb1a2;
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break;
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case BANDWIDTH_7_MHZ:
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ns_coeff1_2048nu = 0x02492492;
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ns_coeff1_8191nu = 0x00924db7;
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ns_coeff1_8192nu = 0x00924925;
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ns_coeff1_8193nu = 0x00924492;
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ns_coeff2_2k = 0x01249249;
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ns_coeff2_8k = 0x00492492;
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break;
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case BANDWIDTH_8_MHZ:
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ns_coeff1_2048nu = 0x029cbc15;
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ns_coeff1_8191nu = 0x00a7343f;
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ns_coeff1_8192nu = 0x00a72f05;
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ns_coeff1_8193nu = 0x00a729cc;
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ns_coeff2_2k = 0x014e5e0a;
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ns_coeff2_8k = 0x00539783;
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break;
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default:
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ret = -EINVAL;
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}
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break;
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case 25000: /* 25.000 MHz */
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switch (bw) {
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case BANDWIDTH_6_MHZ:
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ns_coeff1_2048nu = 0x0231bcb5;
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ns_coeff1_8191nu = 0x008c7391;
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ns_coeff1_8192nu = 0x008c6f2d;
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ns_coeff1_8193nu = 0x008c6aca;
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ns_coeff2_2k = 0x0118de5b;
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ns_coeff2_8k = 0x00463797;
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break;
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case BANDWIDTH_7_MHZ:
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ns_coeff1_2048nu = 0x028f5c29;
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ns_coeff1_8191nu = 0x00a3dc29;
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ns_coeff1_8192nu = 0x00a3d70a;
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ns_coeff1_8193nu = 0x00a3d1ec;
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ns_coeff2_2k = 0x0147ae14;
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ns_coeff2_8k = 0x0051eb85;
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break;
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case BANDWIDTH_8_MHZ:
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ns_coeff1_2048nu = 0x02ecfb9d;
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ns_coeff1_8191nu = 0x00bb44c1;
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ns_coeff1_8192nu = 0x00bb3ee7;
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ns_coeff1_8193nu = 0x00bb390d;
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ns_coeff2_2k = 0x01767dce;
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ns_coeff2_8k = 0x005d9f74;
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break;
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default:
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ret = -EINVAL;
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}
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break;
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default:
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err("invalid xtal");
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return -EINVAL;
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}
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if (ret) {
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err("invalid bandwidth");
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return ret;
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}
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buf[i++] = (u8) ((ns_coeff1_2048nu & 0x03000000) >> 24);
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buf[i++] = (u8) ((ns_coeff1_2048nu & 0x00ff0000) >> 16);
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buf[i++] = (u8) ((ns_coeff1_2048nu & 0x0000ff00) >> 8);
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buf[i++] = (u8) ((ns_coeff1_2048nu & 0x000000ff));
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buf[i++] = (u8) ((ns_coeff2_2k & 0x01c00000) >> 22);
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buf[i++] = (u8) ((ns_coeff2_2k & 0x003fc000) >> 14);
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buf[i++] = (u8) ((ns_coeff2_2k & 0x00003fc0) >> 6);
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buf[i++] = (u8) ((ns_coeff2_2k & 0x0000003f));
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buf[i++] = (u8) ((ns_coeff1_8191nu & 0x03000000) >> 24);
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buf[i++] = (u8) ((ns_coeff1_8191nu & 0x00ffc000) >> 16);
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buf[i++] = (u8) ((ns_coeff1_8191nu & 0x0000ff00) >> 8);
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buf[i++] = (u8) ((ns_coeff1_8191nu & 0x000000ff));
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buf[i++] = (u8) ((ns_coeff1_8192nu & 0x03000000) >> 24);
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buf[i++] = (u8) ((ns_coeff1_8192nu & 0x00ffc000) >> 16);
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buf[i++] = (u8) ((ns_coeff1_8192nu & 0x0000ff00) >> 8);
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buf[i++] = (u8) ((ns_coeff1_8192nu & 0x000000ff));
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buf[i++] = (u8) ((ns_coeff1_8193nu & 0x03000000) >> 24);
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buf[i++] = (u8) ((ns_coeff1_8193nu & 0x00ffc000) >> 16);
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buf[i++] = (u8) ((ns_coeff1_8193nu & 0x0000ff00) >> 8);
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buf[i++] = (u8) ((ns_coeff1_8193nu & 0x000000ff));
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buf[i++] = (u8) ((ns_coeff2_8k & 0x01c00000) >> 22);
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buf[i++] = (u8) ((ns_coeff2_8k & 0x003fc000) >> 14);
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buf[i++] = (u8) ((ns_coeff2_8k & 0x00003fc0) >> 6);
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buf[i++] = (u8) ((ns_coeff2_8k & 0x0000003f));
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if (!found) {
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err("invalid bw or clock");
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ret = -EINVAL;
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goto error;
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}
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buf[0] = (u8) ((coeff_table[i].ns_coeff1_2048nu & 0x03000000) >> 24);
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buf[1] = (u8) ((coeff_table[i].ns_coeff1_2048nu & 0x00ff0000) >> 16);
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buf[2] = (u8) ((coeff_table[i].ns_coeff1_2048nu & 0x0000ff00) >> 8);
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buf[3] = (u8) ((coeff_table[i].ns_coeff1_2048nu & 0x000000ff));
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buf[4] = (u8) ((coeff_table[i].ns_coeff2_2k & 0x01c00000) >> 22);
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buf[5] = (u8) ((coeff_table[i].ns_coeff2_2k & 0x003fc000) >> 14);
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buf[6] = (u8) ((coeff_table[i].ns_coeff2_2k & 0x00003fc0) >> 6);
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buf[7] = (u8) ((coeff_table[i].ns_coeff2_2k & 0x0000003f));
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buf[8] = (u8) ((coeff_table[i].ns_coeff1_8191nu & 0x03000000) >> 24);
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buf[9] = (u8) ((coeff_table[i].ns_coeff1_8191nu & 0x00ffc000) >> 16);
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buf[10] = (u8) ((coeff_table[i].ns_coeff1_8191nu & 0x0000ff00) >> 8);
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buf[11] = (u8) ((coeff_table[i].ns_coeff1_8191nu & 0x000000ff));
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buf[12] = (u8) ((coeff_table[i].ns_coeff1_8192nu & 0x03000000) >> 24);
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buf[13] = (u8) ((coeff_table[i].ns_coeff1_8192nu & 0x00ffc000) >> 16);
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buf[14] = (u8) ((coeff_table[i].ns_coeff1_8192nu & 0x0000ff00) >> 8);
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buf[15] = (u8) ((coeff_table[i].ns_coeff1_8192nu & 0x000000ff));
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buf[16] = (u8) ((coeff_table[i].ns_coeff1_8193nu & 0x03000000) >> 24);
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buf[17] = (u8) ((coeff_table[i].ns_coeff1_8193nu & 0x00ffc000) >> 16);
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buf[18] = (u8) ((coeff_table[i].ns_coeff1_8193nu & 0x0000ff00) >> 8);
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buf[19] = (u8) ((coeff_table[i].ns_coeff1_8193nu & 0x000000ff));
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buf[20] = (u8) ((coeff_table[i].ns_coeff2_8k & 0x01c00000) >> 22);
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buf[21] = (u8) ((coeff_table[i].ns_coeff2_8k & 0x003fc000) >> 14);
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buf[22] = (u8) ((coeff_table[i].ns_coeff2_8k & 0x00003fc0) >> 6);
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buf[23] = (u8) ((coeff_table[i].ns_coeff2_8k & 0x0000003f));
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deb_info("%s: coeff:", __func__);
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debug_dump(buf, sizeof(buf), deb_info);
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@ -398,6 +275,7 @@ static int af9013_set_coeff(struct af9013_state *state, fe_bandwidth_t bw)
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break;
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}
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error:
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return ret;
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}
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@ -60,6 +60,49 @@ struct snr_table {
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u8 snr;
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};
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struct coeff {
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u32 adc_clock;
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fe_bandwidth_t bw;
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u32 ns_coeff1_2048nu;
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u32 ns_coeff1_8191nu;
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u32 ns_coeff1_8192nu;
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u32 ns_coeff1_8193nu;
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u32 ns_coeff2_2k;
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u32 ns_coeff2_8k;
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};
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/* coeff lookup table */
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static struct coeff coeff_table[] = {
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/* 28.800 MHz */
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{ 28800, BANDWIDTH_6_MHZ, 0x01e79e7a, 0x0079eb6e, 0x0079e79e,
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0x0079e3cf, 0x00f3cf3d, 0x003cf3cf },
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{ 28800, BANDWIDTH_7_MHZ, 0x0238e38e, 0x008e3d55, 0x008e38e4,
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0x008e3472, 0x011c71c7, 0x00471c72 },
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{ 28800, BANDWIDTH_8_MHZ, 0x028a28a3, 0x00a28f3d, 0x00a28a29,
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0x00a28514, 0x01451451, 0x00514514 },
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/* 20.480 MHz */
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{ 20480, BANDWIDTH_6_MHZ, 0x02adb6dc, 0x00ab7313, 0x00ab6db7,
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0x00ab685c, 0x0156db6e, 0x0055b6dc },
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{ 20480, BANDWIDTH_7_MHZ, 0x03200001, 0x00c80640, 0x00c80000,
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0x00c7f9c0, 0x01900000, 0x00640000 },
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{ 20480, BANDWIDTH_8_MHZ, 0x03924926, 0x00e4996e, 0x00e49249,
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0x00e48b25, 0x01c92493, 0x00724925 },
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/* 28.000 MHz */
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{ 28000, BANDWIDTH_6_MHZ, 0x01f58d10, 0x007d672f, 0x007d6344,
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0x007d5f59, 0x00fac688, 0x003eb1a2 },
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{ 28000, BANDWIDTH_7_MHZ, 0x02492492, 0x00924db7, 0x00924925,
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0x00924492, 0x01249249, 0x00492492 },
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{ 28000, BANDWIDTH_8_MHZ, 0x029cbc15, 0x00a7343f, 0x00a72f05,
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0x00a729cc, 0x014e5e0a, 0x00539783 },
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/* 25.000 MHz */
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{ 25000, BANDWIDTH_6_MHZ, 0x0231bcb5, 0x008c7391, 0x008c6f2d,
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0x008c6aca, 0x0118de5b, 0x00463797 },
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{ 25000, BANDWIDTH_7_MHZ, 0x028f5c29, 0x00a3dc29, 0x00a3d70a,
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0x00a3d1ec, 0x0147ae14, 0x0051eb85 },
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{ 25000, BANDWIDTH_8_MHZ, 0x02ecfb9d, 0x00bb44c1, 0x00bb3ee7,
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0x00bb390d, 0x01767dce, 0x005d9f74 },
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};
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/* QPSK SNR lookup table */
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static struct snr_table qpsk_snr_table[] = {
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{ 0x0b4771, 0 },
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