I have an active BWC claim that has me on light duty. I was advised that I could not obtain a raise or be evaluated on performance. Is this legal?

I have surpassed my 90 days. I was advised that I could not be evaluated because I am on light duty. I was told I am considered a part time employee but am scheduled to work 80 hours a week. because I am considered part time, I was not permitted my raise that is automatic upon 90 day evaluation. Also, supervisors treat me differently because I have an open BWC claim. I am ridiculed and treated as less of a worker. One supervisor told me that was my game plan, to gain employment and then get hurt and that I probably don't support my children. He also said he guesses I get a paycheck too, for whatever I do around there. Is it legal to refrain from giving me my raise? Or, to refuse to evaluate my performance because I am on light duty?