30 bool spi_is_bus_shared(struct spi_dev_ctx* dev) {  in spi_is_bus_shared()  argument
31     return dev->bus->num_devs > 1;  in spi_is_bus_shared()
34 static inline bool spi_dev_seq_active(struct spi_dev_ctx* dev) {  in spi_dev_seq_active()  argument
35     return dev->cmds;  in spi_dev_seq_active()
38 static void spi_req_exec_set_clk(struct spi_dev_ctx* dev, void* priv) {  in spi_req_exec_set_clk()  argument
42 int spi_req_set_clk(struct spi_dev_ctx* dev, uint64_t* clk_hz) {  in spi_req_set_clk()  argument
43     assert(dev);  in spi_req_set_clk()
46     dev->cmds[dev->curr_cmd].exec = spi_req_exec_set_clk;  in spi_req_set_clk()
47     dev->curr_cmd++;  in spi_req_set_clk()
51 static void spi_req_exec_cs_assert(struct spi_dev_ctx* dev, void* priv) {  in spi_req_exec_cs_assert()  argument
52     assert(dev->bus->owner == NULL);  in spi_req_exec_cs_assert()
54     dev->bus->owner = dev;  in spi_req_exec_cs_assert()
57 int spi_req_cs_assert(struct spi_dev_ctx* dev) {  in spi_req_cs_assert()  argument
58     assert(spi_dev_seq_active(dev));  in spi_req_cs_assert()
59     assert(dev->curr_cmd < dev->num_cmds);  in spi_req_cs_assert()
61     dev->cmds[dev->curr_cmd].exec = spi_req_exec_cs_assert;  in spi_req_cs_assert()
62     dev->curr_cmd++;  in spi_req_cs_assert()
66 static void spi_req_exec_cs_deassert(struct spi_dev_ctx* dev, void* priv) {  in spi_req_exec_cs_deassert()  argument
67     assert(dev->bus->owner == dev);  in spi_req_exec_cs_deassert()
69     dev->bus->owner = NULL;  in spi_req_exec_cs_deassert()
72 int spi_req_cs_deassert(struct spi_dev_ctx* dev) {  in spi_req_cs_deassert()  argument
73     assert(spi_dev_seq_active(dev));  in spi_req_cs_deassert()
74     assert(dev->curr_cmd < dev->num_cmds);  in spi_req_cs_deassert()
76     dev->cmds[dev->curr_cmd].exec = spi_req_exec_cs_deassert;  in spi_req_cs_deassert()
77     dev->curr_cmd++;  in spi_req_cs_deassert()
114 static void spi_req_exec_xfer(struct spi_dev_ctx* dev, void* priv) {  in spi_req_exec_xfer()  argument
121     if (dev->loopback) {  in spi_req_exec_xfer()
141 int spi_req_xfer(struct spi_dev_ctx* dev, void* tx, void* rx, size_t len) {  in spi_req_xfer()  argument
142     assert(spi_dev_seq_active(dev));  in spi_req_xfer()
143     assert(dev->curr_cmd < dev->num_cmds);  in spi_req_xfer()
154     dev->cmds[dev->curr_cmd].exec = spi_req_exec_xfer;  in spi_req_xfer()
155     dev->cmds[dev->curr_cmd].priv = args;  in spi_req_xfer()
156     dev->curr_cmd++;  in spi_req_xfer()
160 static void spi_req_exec_delay(struct spi_dev_ctx* dev, void* priv) {  in spi_req_exec_delay()  argument
165 int spi_req_delay(struct spi_dev_ctx* dev, uint64_t delay_ns) {  in spi_req_delay()  argument
166     assert(dev);  in spi_req_delay()
175     dev->cmds[dev->curr_cmd].exec = spi_req_exec_delay;  in spi_req_delay()
176     dev->cmds[dev->curr_cmd].priv = arg;  in spi_req_delay()
177     dev->curr_cmd++;  in spi_req_delay()
181 int spi_seq_begin(struct spi_dev_ctx* dev, size_t num_cmds) {  in spi_seq_begin()  argument
182     assert(!spi_dev_seq_active(dev));  in spi_seq_begin()
185     dev->cmds = calloc(num_cmds, sizeof(struct spi_seq_entry));  in spi_seq_begin()
186     if (!dev->cmds) {  in spi_seq_begin()
191     dev->num_cmds = num_cmds;  in spi_seq_begin()
195 static void spi_seq_free(struct spi_dev_ctx* dev) {  in spi_seq_free()  argument
196     for (size_t i = 0; i < dev->num_cmds; i++) {  in spi_seq_free()
197         void* priv = dev->cmds[i].priv;  in spi_seq_free()
202     free(dev->cmds);  in spi_seq_free()
203     dev->cmds = NULL;  in spi_seq_free()
204     dev->num_cmds = 0;  in spi_seq_free()
205     dev->curr_cmd = 0;  in spi_seq_free()
208 int spi_seq_commit(struct spi_dev_ctx* dev) {  in spi_seq_commit()  argument
212     assert(spi_dev_seq_active(dev));  in spi_seq_commit()
213     assert(dev->curr_cmd == dev->num_cmds);  in spi_seq_commit()
216     for (i = 0; i < dev->num_cmds; i++) {  in spi_seq_commit()
217         priv = dev->cmds[i].priv;  in spi_seq_commit()
218         dev->cmds[i].exec(dev, priv);  in spi_seq_commit()
221     spi_seq_free(dev);  in spi_seq_commit()
225 void spi_seq_abort(struct spi_dev_ctx* dev) {  in spi_seq_abort()  argument
226     assert(spi_dev_seq_active(dev));  in spi_seq_abort()
227     spi_seq_free(dev);  in spi_seq_abort()