++static int pmm_record_get(struct n810bm *bm,
++ const struct firmware *pmm_block,
++ void *buffer, size_t length,
++ unsigned int group, unsigned int element, unsigned int offset)
++{
++ const u8 *pmm_area = pmm_block->data;
++ u8 active_group_mask;
++
++ if (pmm_block->size != N810BM_PMM_BLOCK_SIZE)
++ return -EINVAL;
++ if (group >= N810BM_PMM_BLOCK_SIZE / N810BM_PMM_GROUP_SIZE)
++ return -EINVAL;
++ if (element >= N810BM_PMM_GROUP_SIZE / N810BM_PMM_ELEM_SIZE)
++ return -EINVAL;
++ if (offset >= N810BM_PMM_ELEM_SIZE || length > N810BM_PMM_ELEM_SIZE ||
++ length + offset > N810BM_PMM_ELEM_SIZE)
++ return -EINVAL;
++
++ active_group_mask = pmm_area[16];
++ if (!(active_group_mask & (1 << group))) {
++ dev_dbg(&bm->pdev->dev, "pwm_record_get: Requested group %u, "
++ "but group is not active", group);
++ return -ENOENT;
++ }
++
++ memcpy(buffer,
++ pmm_area + group * N810BM_PMM_GROUP_SIZE
++ + element * N810BM_PMM_ELEM_SIZE
++ + offset,
++ length);
++
++ return 0;
++}
++
++/* PMM block group 1 element */
++struct group1_element {
++ u8 id;
++ u8 flags;
++ u8 adc_groupnr;
++ u8 _padding;
++ __le32 field1;
++ __le32 field2;
++} __packed;
++
++static void extract_group1_elem(struct n810bm *bm,
++ const struct firmware *pmm_block,
++ const u8 *pmm_adc_ids, size_t nr_pmm_adc_ids,
++ u32 field1_mask, u32 field2_mask)
++{
++ struct group1_element elem;
++ int err;
++ unsigned int i, element_nr;
++ struct n810bm_adc_calib *adc_calib;
++
++ for (i = 0; i < nr_pmm_adc_ids; i++) {
++ element_nr = pmm_adc_ids[i] + 3;
++
++ err = pmm_record_get(bm, pmm_block, &elem, sizeof(elem),
++ 1, element_nr, 0);
++ if (err)
++ continue;
++ WARN_ON(element_nr - 3 + 1 >= ARRAY_SIZE(bm->calib.adc));
++ adc_calib = &bm->calib.adc[element_nr - 3 + 1];
++
++ if (adc_calib->flags == elem.flags) {
++ WARN_ON(adc_calib->id != elem.id);
++ adc_calib->field1 = le32_to_cpu(elem.field1) & field1_mask;
++ adc_calib->field2 = le32_to_cpu(elem.field2) & field2_mask;
++ }
++ }
++}
++
++static int n810bm_parse_pmm_group1(struct n810bm *bm,
++ const struct firmware *pmm_block)
++{
++ struct group1_element elem;
++ int err;
++
++ static const u8 pmm_adc_ids_0[] = {
++ N810BM_PMM_ADC_0x01,
++ N810BM_PMM_ADC_0x02,
++ N810BM_PMM_ADC_0x13,
++ N810BM_PMM_ADC_0x0E,
++ };
++ static const u8 pmm_adc_ids_1[] = {
++ N810BM_PMM_ADC_0x04,
++ };
++ static const u8 pmm_adc_ids_2[] = {
++ N810BM_PMM_ADC_BATTEMP,
++ };
++
++ /* Parse element 2 */
++ err = pmm_record_get(bm, pmm_block, &elem, sizeof(elem),
++ 1, 2, 0);
++ if (err) {
++ dev_err(&bm->pdev->dev,
++ "PMM: Failed to get group 1 / element 2");
++ return err;
++ }
++ if (elem.id == N810BM_PMM_ADC_0xFE && elem.flags == 0x05) {
++ bm->calib.adc[0].id = elem.id;
++ bm->calib.adc[0].flags = elem.flags;
++ bm->calib.adc[0].field1 = le32_to_cpu(elem.field1);
++ bm->calib.adc[0].field2 = le32_to_cpu(elem.field2);
++ }
++
++ extract_group1_elem(bm, pmm_block,
++ pmm_adc_ids_0, ARRAY_SIZE(pmm_adc_ids_0),
++ 0xFFFFFFFF, 0xFFFFFFFF);
++ extract_group1_elem(bm, pmm_block,
++ pmm_adc_ids_1, ARRAY_SIZE(pmm_adc_ids_1),
++ 0xFFFFFFFF, 0);
++ extract_group1_elem(bm, pmm_block,
++ pmm_adc_ids_2, ARRAY_SIZE(pmm_adc_ids_2),
++ 0xFFFFFFFF, 0x0000FFFF);
++
++ return 0;
++}
++
++static int n810bm_parse_pmm_group2(struct n810bm *bm,
++ const struct firmware *pmm_block)
++{
++ dev_err(&bm->pdev->dev, "TODO: CAL BME PMM group 2 parser not implemented, yet");
++ return -EOPNOTSUPP;
++}
++
++static void n810bm_adc_calib_set_defaults(struct n810bm *bm)
++{
++ struct n810bm_adc_calib *adc_calib;
++ const struct n810bm_adc_calib *def;
++ unsigned int i, index;
++
++ static const struct n810bm_adc_calib defaults[] = {
++ /* ADC group-nr 0 */
++ {
++ .id = N810BM_PMM_ADC_0x06,
++ .flags = 0x00,
++ .adc_groupnr = 0,
++ }, {
++ .id = N810BM_PMM_ADC_0x07,
++ .flags = 0x00,
++ .adc_groupnr = 0,
++ }, {
++ .id = N810BM_PMM_ADC_0x15,
++ .flags = 0x00,
++ .adc_groupnr = 0,
++ }, {
++ .id = N810BM_PMM_ADC_0x08,
++ .flags = 0x00,
++ .adc_groupnr = 0,
++ }, {
++ .id = N810BM_PMM_ADC_0x16,
++ .flags = 0x00,
++ .adc_groupnr = 0,
++ }, {
++ .id = N810BM_PMM_ADC_0x17,
++ .flags = 0x00,
++ .adc_groupnr = 0,
++ }, {
++ .id = N810BM_PMM_ADC_0x03,
++ .flags = 0x00,
++ .adc_groupnr = 0,
++ },
++ /* ADC group-nr 1 */
++ {
++ .id = N810BM_PMM_ADC_0xFE,
++ .flags = 0x05,
++ .adc_groupnr = 1,
++ .field1 = (u32)-2,
++ .field2 = 13189,
++ }, {
++ .id = N810BM_PMM_ADC_0x01,
++ .flags = 0x01,
++ .adc_groupnr = 1,
++ .field1 = 2527,
++ .field2 = 21373,
++ }, {
++ .id = N810BM_PMM_ADC_0x02,
++ .flags = 0x01,
++ .adc_groupnr = 1,
++ .field1 = 0,
++ .field2 = 129848,
++ }, {
++ .id = N810BM_PMM_ADC_0x13,
++ .flags = 0x01,
++ .adc_groupnr = 1,
++ .field1 = 0,
++ .field2 = 20000,
++ }, {
++ .id = N810BM_PMM_ADC_0x0E,
++ .flags = 0x06,
++ .adc_groupnr = 1,
++ .field1 = 0,
++ .field2 = 9660,
++ },
++ /* ADC group-nr 2 */
++ {
++ .id = N810BM_PMM_ADC_0x04,
++ .flags = 0x02,
++ .adc_groupnr = 2,
++ .field1 = 1169,
++ .field2 = 0,
++ },
++ /* ADC group-nr 3 */
++ {
++ .id = N810BM_PMM_ADC_BATTEMP,
++ .flags = 0x03,
++ .adc_groupnr = 3,
++ .field1 = 265423000,
++ .field2 = 298,
++ },
++ /* ADC group-nr 4 */
++ {
++ .id = N810BM_PMM_ADC_0x14,
++ .flags = 0x04,
++ .adc_groupnr = 4,
++ .field1 = 19533778,
++ .field2 = 308019670,
++ .field3 = 4700,
++ .field4 = 2500,
++ },
++ };
++
++ /* Clear the array */
++ memset(&bm->calib.adc, 0, sizeof(bm->calib.adc));
++ for (i = 0; i < ARRAY_SIZE(bm->calib.adc); i++)
++ bm->calib.adc[i].flags = 0xFF;
++
++ /* Copy the defaults */
++ for (i = 0; i < ARRAY_SIZE(defaults); i++) {
++ def = &defaults[i];
++
++ index = 0;
++ if (def->id != N810BM_PMM_ADC_0xFE)
++ index = def->id + 1;
++ WARN_ON(index >= ARRAY_SIZE(bm->calib.adc));
++
++ adc_calib = &bm->calib.adc[index];
++ *adc_calib = *def;
++ }
++}
++
++static const struct n810bm_adc_calib * n810bm_get_adc_calib(struct n810bm *bm,
++ enum n810bm_pmm_adc_id id)
++{
++ unsigned int index = 0;
++
++ if (id != N810BM_PMM_ADC_0xFE)
++ index = (unsigned int)id + 1;
++ WARN_ON(index >= ARRAY_SIZE(bm->calib.adc));
++
++ return &bm->calib.adc[index];
++}
++
++static int n810bm_parse_pmm_block(struct n810bm *bm,
++ const struct firmware *pmm_block)
++{
++ u8 byte;
++ int err;
++ unsigned int i, count;
++ struct n810bm_adc_calib *adc_calib;
++
++ /* Initialize to defaults */
++ n810bm_adc_calib_set_defaults(bm);
++
++ /* Parse the PMM data */
++ err = pmm_record_get(bm, pmm_block, &byte, sizeof(byte),
++ 1, 0, 0); /* group 1 / element 0 */
++ err |= (byte != 0x01);
++ err |= pmm_record_get(bm, pmm_block, &byte, sizeof(byte),
++ 1, 1, 0); /* group 1 / element 1 */
++ err |= (byte != 0x01);
++ if (err)
++ err = n810bm_parse_pmm_group2(bm, pmm_block);
++ else
++ err = n810bm_parse_pmm_group1(bm, pmm_block);
++ if (err)
++ return err;
++
++ /* Sanity checks */
++ for (i = 0, count = 0; i < ARRAY_SIZE(bm->calib.adc); i++) {
++ adc_calib = &bm->calib.adc[i];
++ if (adc_calib->flags == 0xFF)
++ continue;
++ switch (adc_calib->id) {
++ case N810BM_PMM_ADC_0x01:
++ if (adc_calib->field1 < 2400 ||
++ adc_calib->field1 > 2700)
++ goto value_check_fail;
++ if (adc_calib->field2 < 20000 ||
++ adc_calib->field2 > 23000)
++ goto value_check_fail;
++ count++;
++ break;
++ case N810BM_PMM_ADC_0x04:
++ if (adc_calib->field1 < 1100 ||
++ adc_calib->field1 > 1300)
++ goto value_check_fail;
++ count++;
++ break;
++ case N810BM_PMM_ADC_0x0E:
++ if (adc_calib->field2 < 7000 ||
++ adc_calib->field2 > 12000)
++ goto value_check_fail;
++ count++;
++ break;
++ case N810BM_PMM_ADC_0xFE:
++ if ((s32)adc_calib->field1 > 14 ||
++ (s32)adc_calib->field1 < -14)
++ goto value_check_fail;
++ if (adc_calib->field2 < 13000 ||
++ adc_calib->field2 > 13350)
++ goto value_check_fail;
++ count++;
++ break;
++ case N810BM_PMM_ADC_0x02:
++ case N810BM_PMM_ADC_BATTEMP:
++ case N810BM_PMM_ADC_0x13:
++ count++;
++ break;
++ case N810BM_PMM_ADC_0x03:
++ case N810BM_PMM_ADC_0x07:
++ case N810BM_PMM_ADC_0x08:
++ case N810BM_PMM_ADC_0x06:
++ case N810BM_PMM_ADC_0x14:
++ case N810BM_PMM_ADC_0x15:
++ case N810BM_PMM_ADC_0x16:
++ case N810BM_PMM_ADC_0x17:
++ break;
++ }
++ dev_dbg(&bm->pdev->dev,
++ "ADC 0x%02X calib: 0x%02X 0x%02X 0x%08X 0x%08X 0x%04X 0x%04X",
++ adc_calib->id, adc_calib->flags, adc_calib->adc_groupnr,
++ adc_calib->field1, adc_calib->field2,
++ adc_calib->field3, adc_calib->field4);
++ }
++ if (count != 7) {
++ dev_err(&bm->pdev->dev, "PMM sanity check: Did not find "
++ "all required values (count=%u)", count);
++ goto check_fail;
++ }
++
++ return 0;
++
++value_check_fail:
++ dev_err(&bm->pdev->dev, "PMM image sanity check failed "
++ "(id=%02X, field1=%08X, field2=%08X)",
++ adc_calib->id, adc_calib->field1, adc_calib->field2);
++check_fail:
++ return -EILSEQ;
++}
++
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